diff options
| -rw-r--r-- | include/grpc/support/slice_buffer.h | 2 | ||||
| -rw-r--r-- | src/core/httpcli/httpcli.c | 95 | ||||
| -rw-r--r-- | src/core/iomgr/endpoint.c | 17 | ||||
| -rw-r--r-- | src/core/iomgr/endpoint.h | 63 | ||||
| -rw-r--r-- | src/core/iomgr/tcp_posix.c | 525 | ||||
| -rw-r--r-- | src/core/iomgr/tcp_windows.c | 192 | ||||
| -rw-r--r-- | src/core/security/secure_endpoint.c | 188 | ||||
| -rw-r--r-- | src/core/security/secure_transport_setup.c | 119 | ||||
| -rw-r--r-- | src/core/support/slice_buffer.c | 22 | ||||
| -rw-r--r-- | src/core/transport/chttp2/internal.h | 12 | ||||
| -rw-r--r-- | src/core/transport/chttp2/writing.c | 21 | ||||
| -rw-r--r-- | src/core/transport/chttp2_transport.c | 140 | ||||
| -rw-r--r-- | test/core/bad_client/bad_client.c | 17 | ||||
| -rw-r--r-- | test/core/iomgr/endpoint_tests.c | 204 | ||||
| -rw-r--r-- | test/core/iomgr/tcp_posix_test.c | 148 | ||||
| -rw-r--r-- | test/core/security/secure_endpoint_test.c | 55 | ||||
| -rw-r--r-- | test/core/util/port_posix.c | 14 | ||||
| -rw-r--r-- | test/core/util/port_windows.c | 91 |
18 files changed, 947 insertions, 978 deletions
diff --git a/include/grpc/support/slice_buffer.h b/include/grpc/support/slice_buffer.h index ec048e8c91..04db003ac5 100644 --- a/include/grpc/support/slice_buffer.h +++ b/include/grpc/support/slice_buffer.h @@ -86,6 +86,8 @@ void gpr_slice_buffer_reset_and_unref(gpr_slice_buffer *sb); void gpr_slice_buffer_swap(gpr_slice_buffer *a, gpr_slice_buffer *b); /* move all of the elements of src into dst */ void gpr_slice_buffer_move_into(gpr_slice_buffer *src, gpr_slice_buffer *dst); +/* remove n bytes from the end of a slice buffer */ +void gpr_slice_buffer_trim_end(gpr_slice_buffer *src, size_t n); #ifdef __cplusplus } diff --git a/src/core/httpcli/httpcli.c b/src/core/httpcli/httpcli.c index 9012070e8e..1e38479eb1 100644 --- a/src/core/httpcli/httpcli.c +++ b/src/core/httpcli/httpcli.c @@ -61,6 +61,10 @@ typedef struct { grpc_httpcli_context *context; grpc_pollset *pollset; grpc_iomgr_object iomgr_obj; + gpr_slice_buffer incoming; + gpr_slice_buffer outgoing; + grpc_iomgr_closure on_read; + grpc_iomgr_closure done_write; } internal_request; static grpc_httpcli_get_override g_get_override = NULL; @@ -99,73 +103,70 @@ static void finish(internal_request *req, int success) { gpr_slice_unref(req->request_text); gpr_free(req->host); grpc_iomgr_unregister_object(&req->iomgr_obj); + gpr_slice_buffer_destroy(&req->incoming); + gpr_slice_buffer_destroy(&req->outgoing); gpr_free(req); } -static void on_read(void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status status) { +static void on_read(void *user_data, int success); + +static void do_read(internal_request *req) { + switch (grpc_endpoint_read(req->ep, &req->incoming, &req->on_read)) { + case GRPC_ENDPOINT_DONE: + on_read(req, 1); + break; + case GRPC_ENDPOINT_PENDING: + break; + case GRPC_ENDPOINT_ERROR: + on_read(req, 0); + break; + } +} + +static void on_read(void *user_data, int success) { internal_request *req = user_data; size_t i; - for (i = 0; i < nslices; i++) { - if (GPR_SLICE_LENGTH(slices[i])) { + for (i = 0; i < req->incoming.count; i++) { + if (GPR_SLICE_LENGTH(req->incoming.slices[i])) { req->have_read_byte = 1; - if (!grpc_httpcli_parser_parse(&req->parser, slices[i])) { + if (!grpc_httpcli_parser_parse(&req->parser, req->incoming.slices[i])) { finish(req, 0); - goto done; + return; } } } - switch (status) { - case GRPC_ENDPOINT_CB_OK: - grpc_endpoint_notify_on_read(req->ep, on_read, req); - break; - case GRPC_ENDPOINT_CB_EOF: - case GRPC_ENDPOINT_CB_ERROR: - case GRPC_ENDPOINT_CB_SHUTDOWN: - if (!req->have_read_byte) { - next_address(req); - } else { - finish(req, grpc_httpcli_parser_eof(&req->parser)); - } - break; - } - -done: - for (i = 0; i < nslices; i++) { - gpr_slice_unref(slices[i]); + if (success) { + do_read(req); + } else if (!req->have_read_byte) { + next_address(req); + } else { + finish(req, grpc_httpcli_parser_eof(&req->parser)); } } -static void on_written(internal_request *req) { - grpc_endpoint_notify_on_read(req->ep, on_read, req); -} +static void on_written(internal_request *req) { do_read(req); } -static void done_write(void *arg, grpc_endpoint_cb_status status) { +static void done_write(void *arg, int success) { internal_request *req = arg; - switch (status) { - case GRPC_ENDPOINT_CB_OK: - on_written(req); - break; - case GRPC_ENDPOINT_CB_EOF: - case GRPC_ENDPOINT_CB_SHUTDOWN: - case GRPC_ENDPOINT_CB_ERROR: - next_address(req); - break; + if (success) { + on_written(req); + } else { + next_address(req); } } static void start_write(internal_request *req) { gpr_slice_ref(req->request_text); - switch ( - grpc_endpoint_write(req->ep, &req->request_text, 1, done_write, req)) { - case GRPC_ENDPOINT_WRITE_DONE: + gpr_slice_buffer_add(&req->outgoing, req->request_text); + switch (grpc_endpoint_write(req->ep, &req->outgoing, &req->done_write)) { + case GRPC_ENDPOINT_DONE: on_written(req); break; - case GRPC_ENDPOINT_WRITE_PENDING: + case GRPC_ENDPOINT_PENDING: break; - case GRPC_ENDPOINT_WRITE_ERROR: + case GRPC_ENDPOINT_ERROR: finish(req, 0); break; } @@ -237,6 +238,10 @@ void grpc_httpcli_get(grpc_httpcli_context *context, grpc_pollset *pollset, request->handshaker ? request->handshaker : &grpc_httpcli_plaintext; req->context = context; req->pollset = pollset; + grpc_iomgr_closure_init(&req->on_read, on_read, req); + grpc_iomgr_closure_init(&req->done_write, done_write, req); + gpr_slice_buffer_init(&req->incoming); + gpr_slice_buffer_init(&req->outgoing); gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->path); grpc_iomgr_register_object(&req->iomgr_obj, name); gpr_free(name); @@ -270,7 +275,11 @@ void grpc_httpcli_post(grpc_httpcli_context *context, grpc_pollset *pollset, request->handshaker ? request->handshaker : &grpc_httpcli_plaintext; req->context = context; req->pollset = pollset; - gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->path); + grpc_iomgr_closure_init(&req->on_read, on_read, req); + grpc_iomgr_closure_init(&req->done_write, done_write, req); + gpr_slice_buffer_init(&req->incoming); + gpr_slice_buffer_init(&req->outgoing); + gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->path); grpc_iomgr_register_object(&req->iomgr_obj, name); gpr_free(name); req->host = gpr_strdup(request->host); diff --git a/src/core/iomgr/endpoint.c b/src/core/iomgr/endpoint.c index 8ee14bce9b..a7878e31dd 100644 --- a/src/core/iomgr/endpoint.c +++ b/src/core/iomgr/endpoint.c @@ -33,17 +33,16 @@ #include "src/core/iomgr/endpoint.h" -void grpc_endpoint_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, - void *user_data) { - ep->vtable->notify_on_read(ep, cb, user_data); +grpc_endpoint_op_status grpc_endpoint_read(grpc_endpoint *ep, + gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) { + return ep->vtable->read(ep, slices, cb); } -grpc_endpoint_write_status grpc_endpoint_write(grpc_endpoint *ep, - gpr_slice *slices, - size_t nslices, - grpc_endpoint_write_cb cb, - void *user_data) { - return ep->vtable->write(ep, slices, nslices, cb, user_data); +grpc_endpoint_op_status grpc_endpoint_write(grpc_endpoint *ep, + gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) { + return ep->vtable->write(ep, slices, cb); } void grpc_endpoint_add_to_pollset(grpc_endpoint *ep, grpc_pollset *pollset) { diff --git a/src/core/iomgr/endpoint.h b/src/core/iomgr/endpoint.h index ea92a500e8..d14d52d561 100644 --- a/src/core/iomgr/endpoint.h +++ b/src/core/iomgr/endpoint.h @@ -37,6 +37,7 @@ #include "src/core/iomgr/pollset.h" #include "src/core/iomgr/pollset_set.h" #include <grpc/support/slice.h> +#include <grpc/support/slice_buffer.h> #include <grpc/support/time.h> /* An endpoint caps a streaming channel between two communicating processes. @@ -45,31 +46,17 @@ typedef struct grpc_endpoint grpc_endpoint; typedef struct grpc_endpoint_vtable grpc_endpoint_vtable; -typedef enum grpc_endpoint_cb_status { - GRPC_ENDPOINT_CB_OK = 0, /* Call completed successfully */ - GRPC_ENDPOINT_CB_EOF, /* Call completed successfully, end of file reached */ - GRPC_ENDPOINT_CB_SHUTDOWN, /* Call interrupted by shutdown */ - GRPC_ENDPOINT_CB_ERROR /* Call interrupted by socket error */ -} grpc_endpoint_cb_status; - -typedef enum grpc_endpoint_write_status { - GRPC_ENDPOINT_WRITE_DONE, /* completed immediately, cb won't be called */ - GRPC_ENDPOINT_WRITE_PENDING, /* cb will be called when completed */ - GRPC_ENDPOINT_WRITE_ERROR /* write errored out, cb won't be called */ -} grpc_endpoint_write_status; - -typedef void (*grpc_endpoint_read_cb)(void *user_data, gpr_slice *slices, - size_t nslices, - grpc_endpoint_cb_status error); -typedef void (*grpc_endpoint_write_cb)(void *user_data, - grpc_endpoint_cb_status error); +typedef enum grpc_endpoint_op_status { + GRPC_ENDPOINT_DONE, /* completed immediately, cb won't be called */ + GRPC_ENDPOINT_PENDING, /* cb will be called when completed */ + GRPC_ENDPOINT_ERROR /* write errored out, cb won't be called */ +} grpc_endpoint_op_status; struct grpc_endpoint_vtable { - void (*notify_on_read)(grpc_endpoint *ep, grpc_endpoint_read_cb cb, - void *user_data); - grpc_endpoint_write_status (*write)(grpc_endpoint *ep, gpr_slice *slices, - size_t nslices, grpc_endpoint_write_cb cb, - void *user_data); + grpc_endpoint_op_status (*read)(grpc_endpoint *ep, gpr_slice_buffer *slices, + grpc_iomgr_closure *cb); + grpc_endpoint_op_status (*write)(grpc_endpoint *ep, gpr_slice_buffer *slices, + grpc_iomgr_closure *cb); void (*add_to_pollset)(grpc_endpoint *ep, grpc_pollset *pollset); void (*add_to_pollset_set)(grpc_endpoint *ep, grpc_pollset_set *pollset); void (*shutdown)(grpc_endpoint *ep); @@ -77,26 +64,32 @@ struct grpc_endpoint_vtable { char *(*get_peer)(grpc_endpoint *ep); }; -/* When data is available on the connection, calls the callback with slices. */ -void grpc_endpoint_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, - void *user_data); +/* When data is available on the connection, calls the callback with slices. + Callback success indicates that the endpoint can accept more reads, failure + indicates the endpoint is closed. + Valid slices may be placed into \a slices even on callback success == 0. */ +grpc_endpoint_op_status grpc_endpoint_read( + grpc_endpoint *ep, gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) GRPC_MUST_USE_RESULT; char *grpc_endpoint_get_peer(grpc_endpoint *ep); /* Write slices out to the socket. If the connection is ready for more data after the end of the call, it - returns GRPC_ENDPOINT_WRITE_DONE. - Otherwise it returns GRPC_ENDPOINT_WRITE_PENDING and calls cb when the - connection is ready for more data. */ -grpc_endpoint_write_status grpc_endpoint_write(grpc_endpoint *ep, - gpr_slice *slices, - size_t nslices, - grpc_endpoint_write_cb cb, - void *user_data); + returns GRPC_ENDPOINT_DONE. + Otherwise it returns GRPC_ENDPOINT_PENDING and calls cb when the + connection is ready for more data. + \a slices may be mutated at will by the endpoint until cb is called. + No guarantee is made to the content of slices after a write EXCEPT that + it is a valid slice buffer. + */ +grpc_endpoint_op_status grpc_endpoint_write( + grpc_endpoint *ep, gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) GRPC_MUST_USE_RESULT; /* Causes any pending read/write callbacks to run immediately with - GRPC_ENDPOINT_CB_SHUTDOWN status */ + success==0 */ void grpc_endpoint_shutdown(grpc_endpoint *ep); void grpc_endpoint_destroy(grpc_endpoint *ep); diff --git a/src/core/iomgr/tcp_posix.c b/src/core/iomgr/tcp_posix.c index 360e6ebd8c..0db7cd9f0e 100644 --- a/src/core/iomgr/tcp_posix.c +++ b/src/core/iomgr/tcp_posix.c @@ -61,209 +61,8 @@ #define SENDMSG_FLAGS 0 #endif -/* Holds a slice array and associated state. */ -typedef struct grpc_tcp_slice_state { - gpr_slice *slices; /* Array of slices */ - size_t nslices; /* Size of slices array. */ - ssize_t first_slice; /* First valid slice in array */ - ssize_t last_slice; /* Last valid slice in array */ - gpr_slice working_slice; /* pointer to original final slice */ - int working_slice_valid; /* True if there is a working slice */ - int memory_owned; /* True if slices array is owned */ -} grpc_tcp_slice_state; - int grpc_tcp_trace = 0; -static void slice_state_init(grpc_tcp_slice_state *state, gpr_slice *slices, - size_t nslices, size_t valid_slices) { - state->slices = slices; - state->nslices = nslices; - if (valid_slices == 0) { - state->first_slice = -1; - } else { - state->first_slice = 0; - } - state->last_slice = valid_slices - 1; - state->working_slice_valid = 0; - state->memory_owned = 0; -} - -/* Returns true if there is still available data */ -static int slice_state_has_available(grpc_tcp_slice_state *state) { - return state->first_slice != -1 && state->last_slice >= state->first_slice; -} - -static ssize_t slice_state_slices_allocated(grpc_tcp_slice_state *state) { - if (state->first_slice == -1) { - return 0; - } else { - return state->last_slice - state->first_slice + 1; - } -} - -static void slice_state_realloc(grpc_tcp_slice_state *state, size_t new_size) { - /* TODO(klempner): use realloc instead when first_slice is 0 */ - /* TODO(klempner): Avoid a realloc in cases where it is unnecessary */ - gpr_slice *slices = state->slices; - size_t original_size = slice_state_slices_allocated(state); - size_t i; - gpr_slice *new_slices = gpr_malloc(sizeof(gpr_slice) * new_size); - - for (i = 0; i < original_size; ++i) { - new_slices[i] = slices[i + state->first_slice]; - } - - state->slices = new_slices; - state->last_slice = original_size - 1; - if (original_size > 0) { - state->first_slice = 0; - } else { - state->first_slice = -1; - } - state->nslices = new_size; - - if (state->memory_owned) { - gpr_free(slices); - } - state->memory_owned = 1; -} - -static void slice_state_remove_prefix(grpc_tcp_slice_state *state, - size_t prefix_bytes) { - gpr_slice *current_slice = &state->slices[state->first_slice]; - size_t current_slice_size; - - while (slice_state_has_available(state)) { - current_slice_size = GPR_SLICE_LENGTH(*current_slice); - if (current_slice_size > prefix_bytes) { - /* TODO(klempner): Get rid of the extra refcount created here by adding a - native "trim the first N bytes" operation to splice */ - /* TODO(klempner): This really shouldn't be modifying the current slice - unless we own the slices array. */ - gpr_slice tail; - tail = gpr_slice_split_tail(current_slice, prefix_bytes); - gpr_slice_unref(*current_slice); - *current_slice = tail; - return; - } else { - gpr_slice_unref(*current_slice); - ++state->first_slice; - ++current_slice; - prefix_bytes -= current_slice_size; - } - } -} - -static void slice_state_destroy(grpc_tcp_slice_state *state) { - while (slice_state_has_available(state)) { - gpr_slice_unref(state->slices[state->first_slice]); - ++state->first_slice; - } - - if (state->memory_owned) { - gpr_free(state->slices); - state->memory_owned = 0; - } -} - -void slice_state_transfer_ownership(grpc_tcp_slice_state *state, - gpr_slice **slices, size_t *nslices) { - *slices = state->slices + state->first_slice; - *nslices = state->last_slice - state->first_slice + 1; - - state->first_slice = -1; - state->last_slice = -1; -} - -/* Fills iov with the first min(iov_size, available) slices, returns number - filled */ -static size_t slice_state_to_iovec(grpc_tcp_slice_state *state, - struct iovec *iov, size_t iov_size) { - size_t nslices = state->last_slice - state->first_slice + 1; - gpr_slice *slices = state->slices + state->first_slice; - size_t i; - if (nslices < iov_size) { - iov_size = nslices; - } - - for (i = 0; i < iov_size; ++i) { - iov[i].iov_base = GPR_SLICE_START_PTR(slices[i]); - iov[i].iov_len = GPR_SLICE_LENGTH(slices[i]); - } - return iov_size; -} - -/* Makes n blocks available at the end of state, writes them into iov, and - returns the number of bytes allocated */ -static size_t slice_state_append_blocks_into_iovec(grpc_tcp_slice_state *state, - struct iovec *iov, size_t n, - size_t slice_size) { - size_t target_size; - size_t i; - size_t allocated_bytes; - ssize_t allocated_slices = slice_state_slices_allocated(state); - - if (n - state->working_slice_valid >= state->nslices - state->last_slice) { - /* Need to grow the slice array */ - target_size = state->nslices; - do { - target_size = target_size * 2; - } while (target_size < allocated_slices + n - state->working_slice_valid); - /* TODO(klempner): If this ever needs to support both prefix removal and - append, we should be smarter about the growth logic here */ - slice_state_realloc(state, target_size); - } - - i = 0; - allocated_bytes = 0; - - if (state->working_slice_valid) { - iov[0].iov_base = GPR_SLICE_END_PTR(state->slices[state->last_slice]); - iov[0].iov_len = GPR_SLICE_LENGTH(state->working_slice) - - GPR_SLICE_LENGTH(state->slices[state->last_slice]); - allocated_bytes += iov[0].iov_len; - ++i; - state->slices[state->last_slice] = state->working_slice; - state->working_slice_valid = 0; - } - - for (; i < n; ++i) { - ++state->last_slice; - state->slices[state->last_slice] = gpr_slice_malloc(slice_size); - iov[i].iov_base = GPR_SLICE_START_PTR(state->slices[state->last_slice]); - iov[i].iov_len = slice_size; - allocated_bytes += slice_size; - } - if (state->first_slice == -1) { - state->first_slice = 0; - } - return allocated_bytes; -} - -/* Remove the last n bytes from state */ -/* TODO(klempner): Consider having this defer actual deletion until later */ -static void slice_state_remove_last(grpc_tcp_slice_state *state, size_t bytes) { - while (bytes > 0 && slice_state_has_available(state)) { - if (GPR_SLICE_LENGTH(state->slices[state->last_slice]) > bytes) { - state->working_slice = state->slices[state->last_slice]; - state->working_slice_valid = 1; - /* TODO(klempner): Combine these into a single operation that doesn't need - to refcount */ - gpr_slice_unref(gpr_slice_split_tail( - &state->slices[state->last_slice], - GPR_SLICE_LENGTH(state->slices[state->last_slice]) - bytes)); - bytes = 0; - } else { - bytes -= GPR_SLICE_LENGTH(state->slices[state->last_slice]); - gpr_slice_unref(state->slices[state->last_slice]); - --state->last_slice; - if (state->last_slice == -1) { - state->first_slice = -1; - } - } - } -} - typedef struct { grpc_endpoint base; grpc_fd *em_fd; @@ -273,80 +72,111 @@ typedef struct { size_t slice_size; gpr_refcount refcount; - grpc_endpoint_read_cb read_cb; - void *read_user_data; - grpc_endpoint_write_cb write_cb; - void *write_user_data; + gpr_slice_buffer *incoming_buffer; + gpr_slice_buffer *outgoing_buffer; + /** slice within outgoing_buffer to write next */ + size_t outgoing_slice_idx; + /** byte within outgoing_buffer->slices[outgoing_slice_idx] to write next */ + size_t outgoing_byte_idx; - grpc_tcp_slice_state write_state; + grpc_iomgr_closure *read_cb; + grpc_iomgr_closure *write_cb; grpc_iomgr_closure read_closure; grpc_iomgr_closure write_closure; - grpc_iomgr_closure handle_read_closure; - char *peer_string; } grpc_tcp; -static void grpc_tcp_handle_read(void *arg /* grpc_tcp */, int success); -static void grpc_tcp_handle_write(void *arg /* grpc_tcp */, int success); +static void tcp_handle_read(void *arg /* grpc_tcp */, int success); +static void tcp_handle_write(void *arg /* grpc_tcp */, int success); -static void grpc_tcp_shutdown(grpc_endpoint *ep) { +static void tcp_shutdown(grpc_endpoint *ep) { grpc_tcp *tcp = (grpc_tcp *)ep; grpc_fd_shutdown(tcp->em_fd); } -static void grpc_tcp_unref(grpc_tcp *tcp) { - int refcount_zero = gpr_unref(&tcp->refcount); - if (refcount_zero) { - grpc_fd_orphan(tcp->em_fd, NULL, "tcp_unref_orphan"); - gpr_free(tcp->peer_string); - gpr_free(tcp); +static void tcp_free(grpc_tcp *tcp) { + grpc_fd_orphan(tcp->em_fd, NULL, "tcp_unref_orphan"); + gpr_free(tcp->peer_string); + gpr_free(tcp); +} + +/*#define GRPC_TCP_REFCOUNT_DEBUG*/ +#ifdef GRPC_TCP_REFCOUNT_DEBUG +#define TCP_UNREF(tcp, reason) tcp_unref((tcp), (reason), __FILE__, __LINE__) +#define TCP_REF(tcp, reason) tcp_ref((tcp), (reason), __FILE__, __LINE__) +static void tcp_unref(grpc_tcp *tcp, const char *reason, const char *file, + int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "TCP unref %p : %s %d -> %d", tcp, + reason, tcp->refcount.count, tcp->refcount.count - 1); + if (gpr_unref(&tcp->refcount)) { + tcp_free(tcp); } } -static void grpc_tcp_destroy(grpc_endpoint *ep) { +static void tcp_ref(grpc_tcp *tcp, const char *reason, const char *file, + int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "TCP ref %p : %s %d -> %d", tcp, + reason, tcp->refcount.count, tcp->refcount.count + 1); + gpr_ref(&tcp->refcount); +} +#else +#define TCP_UNREF(tcp, reason) tcp_unref((tcp)) +#define TCP_REF(tcp, reason) tcp_ref((tcp)) +static void tcp_unref(grpc_tcp *tcp) { + if (gpr_unref(&tcp->refcount)) { + tcp_free(tcp); + } +} + +static void tcp_ref(grpc_tcp *tcp) { gpr_ref(&tcp->refcount); } +#endif + +static void tcp_destroy(grpc_endpoint *ep) { grpc_tcp *tcp = (grpc_tcp *)ep; - grpc_tcp_unref(tcp); + TCP_UNREF(tcp, "destroy"); } -static void call_read_cb(grpc_tcp *tcp, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status status) { - grpc_endpoint_read_cb cb = tcp->read_cb; +static void call_read_cb(grpc_tcp *tcp, int success) { + grpc_iomgr_closure *cb = tcp->read_cb; if (grpc_tcp_trace) { size_t i; - gpr_log(GPR_DEBUG, "read: status=%d", status); - for (i = 0; i < nslices; i++) { - char *dump = gpr_dump_slice(slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); + gpr_log(GPR_DEBUG, "read: success=%d", success); + for (i = 0; i < tcp->incoming_buffer->count; i++) { + char *dump = gpr_dump_slice(tcp->incoming_buffer->slices[i], + GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_DEBUG, "READ %p: %s", tcp, dump); gpr_free(dump); } } tcp->read_cb = NULL; - cb(tcp->read_user_data, slices, nslices, status); + tcp->incoming_buffer = NULL; + cb->cb(cb->cb_arg, success); } -#define INLINE_SLICE_BUFFER_SIZE 8 #define MAX_READ_IOVEC 4 -static void grpc_tcp_continue_read(grpc_tcp *tcp) { - gpr_slice static_read_slices[INLINE_SLICE_BUFFER_SIZE]; +static void tcp_continue_read(grpc_tcp *tcp) { struct msghdr msg; struct iovec iov[MAX_READ_IOVEC]; ssize_t read_bytes; - ssize_t allocated_bytes; - struct grpc_tcp_slice_state read_state; - gpr_slice *final_slices; - size_t final_nslices; + size_t i; GPR_ASSERT(!tcp->finished_edge); + GPR_ASSERT(tcp->iov_size <= MAX_READ_IOVEC); + GPR_ASSERT(tcp->incoming_buffer->count <= MAX_READ_IOVEC); GRPC_TIMER_BEGIN(GRPC_PTAG_HANDLE_READ, 0); - slice_state_init(&read_state, static_read_slices, INLINE_SLICE_BUFFER_SIZE, - 0); - allocated_bytes = slice_state_append_blocks_into_iovec( - &read_state, iov, tcp->iov_size, tcp->slice_size); + while (tcp->incoming_buffer->count < (size_t)tcp->iov_size) { + gpr_slice_buffer_add_indexed(tcp->incoming_buffer, + gpr_slice_malloc(tcp->slice_size)); + } + for (i = 0; i < tcp->incoming_buffer->count; i++) { + iov[i].iov_base = GPR_SLICE_START_PTR(tcp->incoming_buffer->slices[i]); + iov[i].iov_len = GPR_SLICE_LENGTH(tcp->incoming_buffer->slices[i]); + } msg.msg_name = NULL; msg.msg_namelen = 0; @@ -362,106 +192,105 @@ static void grpc_tcp_continue_read(grpc_tcp *tcp) { } while (read_bytes < 0 && errno == EINTR); GRPC_TIMER_END(GRPC_PTAG_RECVMSG, 0); - if (read_bytes < allocated_bytes) { - /* TODO(klempner): Consider a second read first, in hopes of getting a - * quick EAGAIN and saving a bunch of allocations. */ - slice_state_remove_last(&read_state, read_bytes < 0 - ? allocated_bytes - : allocated_bytes - read_bytes); - } - if (read_bytes < 0) { - /* NB: After calling the user_cb a parallel call of the read handler may + /* NB: After calling call_read_cb a parallel call of the read handler may * be running. */ if (errno == EAGAIN) { if (tcp->iov_size > 1) { tcp->iov_size /= 2; } - if (slice_state_has_available(&read_state)) { - /* TODO(klempner): We should probably do the call into the application - without all this junk on the stack */ - /* FIXME(klempner): Refcount properly */ - slice_state_transfer_ownership(&read_state, &final_slices, - &final_nslices); - tcp->finished_edge = 1; - call_read_cb(tcp, final_slices, final_nslices, GRPC_ENDPOINT_CB_OK); - slice_state_destroy(&read_state); - grpc_tcp_unref(tcp); - } else { - /* We've consumed the edge, request a new one */ - slice_state_destroy(&read_state); - grpc_fd_notify_on_read(tcp->em_fd, &tcp->read_closure); - } + /* We've consumed the edge, request a new one */ + grpc_fd_notify_on_read(tcp->em_fd, &tcp->read_closure); } else { /* TODO(klempner): Log interesting errors */ - call_read_cb(tcp, NULL, 0, GRPC_ENDPOINT_CB_ERROR); - slice_state_destroy(&read_state); - grpc_tcp_unref(tcp); + gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer); + call_read_cb(tcp, 0); + TCP_UNREF(tcp, "read"); } } else if (read_bytes == 0) { /* 0 read size ==> end of stream */ - if (slice_state_has_available(&read_state)) { - /* there were bytes already read: pass them up to the application */ - slice_state_transfer_ownership(&read_state, &final_slices, - &final_nslices); - call_read_cb(tcp, final_slices, final_nslices, GRPC_ENDPOINT_CB_EOF); - } else { - call_read_cb(tcp, NULL, 0, GRPC_ENDPOINT_CB_EOF); - } - slice_state_destroy(&read_state); - grpc_tcp_unref(tcp); + gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer); + call_read_cb(tcp, 0); + TCP_UNREF(tcp, "read"); } else { - if (tcp->iov_size < MAX_READ_IOVEC) { + GPR_ASSERT((size_t)read_bytes <= tcp->incoming_buffer->length); + if ((size_t)read_bytes < tcp->incoming_buffer->length) { + gpr_slice_buffer_trim_end(tcp->incoming_buffer, + tcp->incoming_buffer->length - read_bytes); + } else if (tcp->iov_size < MAX_READ_IOVEC) { ++tcp->iov_size; } - GPR_ASSERT(slice_state_has_available(&read_state)); - slice_state_transfer_ownership(&read_state, &final_slices, &final_nslices); - call_read_cb(tcp, final_slices, final_nslices, GRPC_ENDPOINT_CB_OK); - slice_state_destroy(&read_state); - grpc_tcp_unref(tcp); + GPR_ASSERT((size_t)read_bytes == tcp->incoming_buffer->length); + call_read_cb(tcp, 1); + TCP_UNREF(tcp, "read"); } GRPC_TIMER_END(GRPC_PTAG_HANDLE_READ, 0); } -static void grpc_tcp_handle_read(void *arg /* grpc_tcp */, int success) { +static void tcp_handle_read(void *arg /* grpc_tcp */, int success) { grpc_tcp *tcp = (grpc_tcp *)arg; GPR_ASSERT(!tcp->finished_edge); if (!success) { - call_read_cb(tcp, NULL, 0, GRPC_ENDPOINT_CB_SHUTDOWN); - grpc_tcp_unref(tcp); + gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer); + call_read_cb(tcp, 0); + TCP_UNREF(tcp, "read"); } else { - grpc_tcp_continue_read(tcp); + tcp_continue_read(tcp); } } -static void grpc_tcp_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, - void *user_data) { +static grpc_endpoint_op_status tcp_read(grpc_endpoint *ep, + gpr_slice_buffer *incoming_buffer, + grpc_iomgr_closure *cb) { grpc_tcp *tcp = (grpc_tcp *)ep; GPR_ASSERT(tcp->read_cb == NULL); tcp->read_cb = cb; - tcp->read_user_data = user_data; - gpr_ref(&tcp->refcount); + tcp->incoming_buffer = incoming_buffer; + gpr_slice_buffer_reset_and_unref(incoming_buffer); + TCP_REF(tcp, "read"); if (tcp->finished_edge) { tcp->finished_edge = 0; grpc_fd_notify_on_read(tcp->em_fd, &tcp->read_closure); } else { - tcp->handle_read_closure.cb_arg = tcp; - grpc_iomgr_add_delayed_callback(&tcp->handle_read_closure, 1); + grpc_iomgr_add_delayed_callback(&tcp->read_closure, 1); } + /* TODO(ctiller): immediate return */ + return GRPC_ENDPOINT_PENDING; } #define MAX_WRITE_IOVEC 16 -static grpc_endpoint_write_status grpc_tcp_flush(grpc_tcp *tcp) { +static grpc_endpoint_op_status tcp_flush(grpc_tcp *tcp) { struct msghdr msg; struct iovec iov[MAX_WRITE_IOVEC]; int iov_size; ssize_t sent_length; - grpc_tcp_slice_state *state = &tcp->write_state; + ssize_t sending_length; + ssize_t trailing; + ssize_t unwind_slice_idx; + ssize_t unwind_byte_idx; for (;;) { - iov_size = slice_state_to_iovec(state, iov, MAX_WRITE_IOVEC); + sending_length = 0; + unwind_slice_idx = tcp->outgoing_slice_idx; + unwind_byte_idx = tcp->outgoing_byte_idx; + for (iov_size = 0; tcp->outgoing_slice_idx != tcp->outgoing_buffer->count && + iov_size != MAX_WRITE_IOVEC; + iov_size++) { + iov[iov_size].iov_base = + GPR_SLICE_START_PTR( + tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]) + + tcp->outgoing_byte_idx; + iov[iov_size].iov_len = + GPR_SLICE_LENGTH( + tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]) - + tcp->outgoing_byte_idx; + sending_length += iov[iov_size].iov_len; + tcp->outgoing_slice_idx++; + tcp->outgoing_byte_idx = 0; + } + GPR_ASSERT(iov_size > 0); msg.msg_name = NULL; msg.msg_namelen = 0; @@ -480,70 +309,75 @@ static grpc_endpoint_write_status grpc_tcp_flush(grpc_tcp *tcp) { if (sent_length < 0) { if (errno == EAGAIN) { - return GRPC_ENDPOINT_WRITE_PENDING; + tcp->outgoing_slice_idx = unwind_slice_idx; + tcp->outgoing_byte_idx = unwind_byte_idx; + return GRPC_ENDPOINT_PENDING; } else { /* TODO(klempner): Log some of these */ - slice_state_destroy(state); - return GRPC_ENDPOINT_WRITE_ERROR; + return GRPC_ENDPOINT_ERROR; } } - /* TODO(klempner): Probably better to batch this after we finish flushing */ - slice_state_remove_prefix(state, sent_length); + GPR_ASSERT(tcp->outgoing_byte_idx == 0); + trailing = sending_length - sent_length; + while (trailing > 0) { + ssize_t slice_length; + + tcp->outgoing_slice_idx--; + slice_length = GPR_SLICE_LENGTH( + tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]); + if (slice_length > trailing) { + tcp->outgoing_byte_idx = slice_length - trailing; + break; + } else { + trailing -= slice_length; + } + } - if (!slice_state_has_available(state)) { - return GRPC_ENDPOINT_WRITE_DONE; + if (tcp->outgoing_slice_idx == tcp->outgoing_buffer->count) { + return GRPC_ENDPOINT_DONE; } }; } -static void grpc_tcp_handle_write(void *arg /* grpc_tcp */, int success) { +static void tcp_handle_write(void *arg /* grpc_tcp */, int success) { grpc_tcp *tcp = (grpc_tcp *)arg; - grpc_endpoint_write_status write_status; - grpc_endpoint_cb_status cb_status; - grpc_endpoint_write_cb cb; + grpc_endpoint_op_status status; + grpc_iomgr_closure *cb; if (!success) { - slice_state_destroy(&tcp->write_state); cb = tcp->write_cb; tcp->write_cb = NULL; - cb(tcp->write_user_data, GRPC_ENDPOINT_CB_SHUTDOWN); - grpc_tcp_unref(tcp); + cb->cb(cb->cb_arg, 0); + TCP_UNREF(tcp, "write"); return; } GRPC_TIMER_BEGIN(GRPC_PTAG_TCP_CB_WRITE, 0); - write_status = grpc_tcp_flush(tcp); - if (write_status == GRPC_ENDPOINT_WRITE_PENDING) { + status = tcp_flush(tcp); + if (status == GRPC_ENDPOINT_PENDING) { grpc_fd_notify_on_write(tcp->em_fd, &tcp->write_closure); } else { - slice_state_destroy(&tcp->write_state); - if (write_status == GRPC_ENDPOINT_WRITE_DONE) { - cb_status = GRPC_ENDPOINT_CB_OK; - } else { - cb_status = GRPC_ENDPOINT_CB_ERROR; - } cb = tcp->write_cb; tcp->write_cb = NULL; - cb(tcp->write_user_data, cb_status); - grpc_tcp_unref(tcp); + cb->cb(cb->cb_arg, status == GRPC_ENDPOINT_DONE); + TCP_UNREF(tcp, "write"); } GRPC_TIMER_END(GRPC_PTAG_TCP_CB_WRITE, 0); } -static grpc_endpoint_write_status grpc_tcp_write(grpc_endpoint *ep, - gpr_slice *slices, - size_t nslices, - grpc_endpoint_write_cb cb, - void *user_data) { +static grpc_endpoint_op_status tcp_write(grpc_endpoint *ep, + gpr_slice_buffer *buf, + grpc_iomgr_closure *cb) { grpc_tcp *tcp = (grpc_tcp *)ep; - grpc_endpoint_write_status status; + grpc_endpoint_op_status status; if (grpc_tcp_trace) { size_t i; - for (i = 0; i < nslices; i++) { - char *data = gpr_dump_slice(slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); + for (i = 0; i < buf->count; i++) { + char *data = + gpr_dump_slice(buf->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_DEBUG, "WRITE %p: %s", tcp, data); gpr_free(data); } @@ -551,15 +385,19 @@ static grpc_endpoint_write_status grpc_tcp_write(grpc_endpoint *ep, GRPC_TIMER_BEGIN(GRPC_PTAG_TCP_WRITE, 0); GPR_ASSERT(tcp->write_cb == NULL); - slice_state_init(&tcp->write_state, slices, nslices, nslices); - status = grpc_tcp_flush(tcp); - if (status == GRPC_ENDPOINT_WRITE_PENDING) { - /* TODO(klempner): Consider inlining rather than malloc for small nslices */ - slice_state_realloc(&tcp->write_state, nslices); - gpr_ref(&tcp->refcount); + if (buf->length == 0) { + GRPC_TIMER_END(GRPC_PTAG_TCP_WRITE, 0); + return GRPC_ENDPOINT_DONE; + } + tcp->outgoing_buffer = buf; + tcp->outgoing_slice_idx = 0; + tcp->outgoing_byte_idx = 0; + + status = tcp_flush(tcp); + if (status == GRPC_ENDPOINT_PENDING) { + TCP_REF(tcp, "write"); tcp->write_cb = cb; - tcp->write_user_data = user_data; grpc_fd_notify_on_write(tcp->em_fd, &tcp->write_closure); } @@ -567,27 +405,25 @@ static grpc_endpoint_write_status grpc_tcp_write(grpc_endpoint *ep, return status; } -static void grpc_tcp_add_to_pollset(grpc_endpoint *ep, grpc_pollset *pollset) { +static void tcp_add_to_pollset(grpc_endpoint *ep, grpc_pollset *pollset) { grpc_tcp *tcp = (grpc_tcp *)ep; grpc_pollset_add_fd(pollset, tcp->em_fd); } -static void grpc_tcp_add_to_pollset_set(grpc_endpoint *ep, - grpc_pollset_set *pollset_set) { +static void tcp_add_to_pollset_set(grpc_endpoint *ep, + grpc_pollset_set *pollset_set) { grpc_tcp *tcp = (grpc_tcp *)ep; grpc_pollset_set_add_fd(pollset_set, tcp->em_fd); } -static char *grpc_tcp_get_peer(grpc_endpoint *ep) { +static char *tcp_get_peer(grpc_endpoint *ep) { grpc_tcp *tcp = (grpc_tcp *)ep; return gpr_strdup(tcp->peer_string); } static const grpc_endpoint_vtable vtable = { - grpc_tcp_notify_on_read, grpc_tcp_write, - grpc_tcp_add_to_pollset, grpc_tcp_add_to_pollset_set, - grpc_tcp_shutdown, grpc_tcp_destroy, - grpc_tcp_get_peer}; + tcp_read, tcp_write, tcp_add_to_pollset, tcp_add_to_pollset_set, + tcp_shutdown, tcp_destroy, tcp_get_peer}; grpc_endpoint *grpc_tcp_create(grpc_fd *em_fd, size_t slice_size, const char *peer_string) { @@ -597,21 +433,18 @@ grpc_endpoint *grpc_tcp_create(grpc_fd *em_fd, size_t slice_size, tcp->fd = em_fd->fd; tcp->read_cb = NULL; tcp->write_cb = NULL; - tcp->read_user_data = NULL; - tcp->write_user_data = NULL; + tcp->incoming_buffer = NULL; tcp->slice_size = slice_size; tcp->iov_size = 1; tcp->finished_edge = 1; - slice_state_init(&tcp->write_state, NULL, 0, 0); /* paired with unref in grpc_tcp_destroy */ gpr_ref_init(&tcp->refcount, 1); tcp->em_fd = em_fd; - tcp->read_closure.cb = grpc_tcp_handle_read; + tcp->read_closure.cb = tcp_handle_read; tcp->read_closure.cb_arg = tcp; - tcp->write_closure.cb = grpc_tcp_handle_write; + tcp->write_closure.cb = tcp_handle_write; tcp->write_closure.cb_arg = tcp; - tcp->handle_read_closure.cb = grpc_tcp_handle_read; return &tcp->base; } diff --git a/src/core/iomgr/tcp_windows.c b/src/core/iomgr/tcp_windows.c index 901793ec43..58f9160ef9 100644 --- a/src/core/iomgr/tcp_windows.c +++ b/src/core/iomgr/tcp_windows.c @@ -82,13 +82,11 @@ typedef struct grpc_tcp { /* Refcounting how many operations are in progress. */ gpr_refcount refcount; - grpc_endpoint_read_cb read_cb; - void *read_user_data; + grpc_iomgr_closure *read_cb; + grpc_iomgr_closure *write_cb; gpr_slice read_slice; - - grpc_endpoint_write_cb write_cb; - void *write_user_data; - gpr_slice_buffer write_slices; + gpr_slice_buffer *write_slices; + gpr_slice_buffer *read_slices; /* The IO Completion Port runs from another thread. We need some mechanism to protect ourselves when requesting a shutdown. */ @@ -98,34 +96,55 @@ typedef struct grpc_tcp { char *peer_string; } grpc_tcp; -static void tcp_ref(grpc_tcp *tcp) { gpr_ref(&tcp->refcount); } +static void tcp_free(grpc_tcp *tcp) { + grpc_winsocket_orphan(tcp->socket); + gpr_mu_destroy(&tcp->mu); + gpr_free(tcp->peer_string); + gpr_free(tcp); +} + +/*#define GRPC_TCP_REFCOUNT_DEBUG*/ +#ifdef GRPC_TCP_REFCOUNT_DEBUG +#define TCP_UNREF(tcp, reason) tcp_unref((tcp), (reason), __FILE__, __LINE__) +#define TCP_REF(tcp, reason) tcp_ref((tcp), (reason), __FILE__, __LINE__) +static void tcp_unref(grpc_tcp *tcp, const char *reason, const char *file, + int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "TCP unref %p : %s %d -> %d", tcp, + reason, tcp->refcount.count, tcp->refcount.count - 1); + if (gpr_unref(&tcp->refcount)) { + tcp_free(tcp); + } +} +static void tcp_ref(grpc_tcp *tcp, const char *reason, const char *file, + int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "TCP ref %p : %s %d -> %d", tcp, + reason, tcp->refcount.count, tcp->refcount.count + 1); + gpr_ref(&tcp->refcount); +} +#else +#define TCP_UNREF(tcp, reason) tcp_unref((tcp)) +#define TCP_REF(tcp, reason) tcp_ref((tcp)) static void tcp_unref(grpc_tcp *tcp) { if (gpr_unref(&tcp->refcount)) { - gpr_slice_buffer_destroy(&tcp->write_slices); - grpc_winsocket_orphan(tcp->socket); - gpr_mu_destroy(&tcp->mu); - gpr_free(tcp->peer_string); - gpr_free(tcp); + tcp_free(tcp); } } +static void tcp_ref(grpc_tcp *tcp) { gpr_ref(&tcp->refcount); } +#endif + /* Asynchronous callback from the IOCP, or the background thread. */ -static void on_read(void *tcpp, int from_iocp) { - grpc_tcp *tcp = (grpc_tcp *)tcpp; +static int on_read(grpc_tcp *tcp, int from_iocp) { grpc_winsocket *socket = tcp->socket; gpr_slice sub; gpr_slice *slice = NULL; size_t nslices = 0; - grpc_endpoint_cb_status status; - grpc_endpoint_read_cb cb; + int success; grpc_winsocket_callback_info *info = &socket->read_info; - void *opaque = tcp->read_user_data; int do_abort = 0; gpr_mu_lock(&tcp->mu); - cb = tcp->read_cb; - tcp->read_cb = NULL; if (!from_iocp || tcp->shutting_down) { /* If we are here with from_iocp set to true, it means we got raced to shutting down the endpoint. No actual abort callback will happen @@ -139,9 +158,7 @@ static void on_read(void *tcpp, int from_iocp) { tcp->socket->read_info.outstanding = 0; gpr_slice_unref(tcp->read_slice); } - tcp_unref(tcp); - if (cb) cb(opaque, NULL, 0, GRPC_ENDPOINT_CB_SHUTDOWN); - return; + return 0; } GPR_ASSERT(tcp->socket->read_info.outstanding); @@ -152,28 +169,38 @@ static void on_read(void *tcpp, int from_iocp) { gpr_log(GPR_ERROR, "ReadFile overlapped error: %s", utf8_message); gpr_free(utf8_message); } + success = 0; gpr_slice_unref(tcp->read_slice); - status = GRPC_ENDPOINT_CB_ERROR; } else { if (info->bytes_transfered != 0) { sub = gpr_slice_sub_no_ref(tcp->read_slice, 0, info->bytes_transfered); - status = GRPC_ENDPOINT_CB_OK; - slice = ⊂ - nslices = 1; + gpr_slice_buffer_add(tcp->read_slices, sub); + success = 1; } else { gpr_slice_unref(tcp->read_slice); - status = GRPC_ENDPOINT_CB_EOF; + success = 0; } } tcp->socket->read_info.outstanding = 0; - tcp_unref(tcp); - cb(opaque, slice, nslices, status); + return success; +} + +static void on_read_cb(void *tcpp, int from_iocp) { + grpc_tcp *tcp = tcpp; + grpc_iomgr_closure *cb = tcp->read_cb; + int success = on_read(tcp, from_iocp); + tcp->read_cb = NULL; + TCP_UNREF(tcp, "read"); + if (cb) { + cb->cb(cb->cb_arg, success); + } } -static void win_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, - void *arg) { +static grpc_endpoint_op_status win_read(grpc_endpoint *ep, + gpr_slice_buffer *read_slices, + grpc_iomgr_closure *cb) { grpc_tcp *tcp = (grpc_tcp *)ep; grpc_winsocket *handle = tcp->socket; grpc_winsocket_callback_info *info = &handle->read_info; @@ -184,13 +211,15 @@ static void win_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, GPR_ASSERT(!tcp->socket->read_info.outstanding); if (tcp->shutting_down) { - cb(arg, NULL, 0, GRPC_ENDPOINT_CB_SHUTDOWN); - return; + return GRPC_ENDPOINT_ERROR; } - tcp_ref(tcp); + + TCP_REF(tcp, "read"); + tcp->socket->read_info.outstanding = 1; tcp->read_cb = cb; - tcp->read_user_data = arg; + tcp->read_slices = read_slices; + gpr_slice_buffer_reset_and_unref(read_slices); tcp->read_slice = gpr_slice_malloc(8192); @@ -204,10 +233,11 @@ static void win_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, /* Did we get data immediately ? Yay. */ if (info->wsa_error != WSAEWOULDBLOCK) { + int ok; info->bytes_transfered = bytes_read; - /* This might heavily recurse. */ - on_read(tcp, 1); - return; + ok = on_read(tcp, 1); + TCP_UNREF(tcp, "read"); + return ok ? GRPC_ENDPOINT_DONE : GRPC_ENDPOINT_ERROR; } /* Otherwise, let's retry, by queuing a read. */ @@ -218,13 +248,15 @@ static void win_notify_on_read(grpc_endpoint *ep, grpc_endpoint_read_cb cb, if (status != 0) { int wsa_error = WSAGetLastError(); if (wsa_error != WSA_IO_PENDING) { + int ok; info->wsa_error = wsa_error; - on_read(tcp, 1); - return; + ok = on_read(tcp, 1); + return ok ? GRPC_ENDPOINT_DONE : GRPC_ENDPOINT_ERROR; } } - grpc_socket_notify_on_read(tcp->socket, on_read, tcp); + grpc_socket_notify_on_read(tcp->socket, on_read_cb, tcp); + return GRPC_ENDPOINT_PENDING; } /* Asynchronous callback from the IOCP, or the background thread. */ @@ -232,9 +264,8 @@ static void on_write(void *tcpp, int from_iocp) { grpc_tcp *tcp = (grpc_tcp *)tcpp; grpc_winsocket *handle = tcp->socket; grpc_winsocket_callback_info *info = &handle->write_info; - grpc_endpoint_cb_status status = GRPC_ENDPOINT_CB_OK; - grpc_endpoint_write_cb cb; - void *opaque = tcp->write_user_data; + grpc_iomgr_closure *cb; + int success; int do_abort = 0; gpr_mu_lock(&tcp->mu); @@ -251,10 +282,11 @@ static void on_write(void *tcpp, int from_iocp) { if (do_abort) { if (from_iocp) { tcp->socket->write_info.outstanding = 0; - gpr_slice_buffer_reset_and_unref(&tcp->write_slices); } - tcp_unref(tcp); - if (cb) cb(opaque, GRPC_ENDPOINT_CB_SHUTDOWN); + TCP_UNREF(tcp, "write"); + if (cb) { + cb->cb(cb->cb_arg, 0); + } return; } @@ -266,23 +298,22 @@ static void on_write(void *tcpp, int from_iocp) { gpr_log(GPR_ERROR, "WSASend overlapped error: %s", utf8_message); gpr_free(utf8_message); } - status = GRPC_ENDPOINT_CB_ERROR; + success = 0; } else { - GPR_ASSERT(info->bytes_transfered == tcp->write_slices.length); + GPR_ASSERT(info->bytes_transfered == tcp->write_slices->length); + success = 1; } - gpr_slice_buffer_reset_and_unref(&tcp->write_slices); tcp->socket->write_info.outstanding = 0; - tcp_unref(tcp); - cb(opaque, status); + TCP_UNREF(tcp, "write"); + cb->cb(cb->cb_arg, success); } /* Initiates a write. */ -static grpc_endpoint_write_status win_write(grpc_endpoint *ep, - gpr_slice *slices, size_t nslices, - grpc_endpoint_write_cb cb, - void *arg) { +static grpc_endpoint_op_status win_write(grpc_endpoint *ep, + gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) { grpc_tcp *tcp = (grpc_tcp *)ep; grpc_winsocket *socket = tcp->socket; grpc_winsocket_callback_info *info = &socket->write_info; @@ -295,28 +326,26 @@ static grpc_endpoint_write_status win_write(grpc_endpoint *ep, GPR_ASSERT(!tcp->socket->write_info.outstanding); if (tcp->shutting_down) { - return GRPC_ENDPOINT_WRITE_ERROR; + return GRPC_ENDPOINT_ERROR; } - tcp_ref(tcp); + TCP_REF(tcp, "write"); tcp->socket->write_info.outstanding = 1; tcp->write_cb = cb; - tcp->write_user_data = arg; - - gpr_slice_buffer_addn(&tcp->write_slices, slices, nslices); + tcp->write_slices = slices; - if (tcp->write_slices.count > GPR_ARRAY_SIZE(local_buffers)) { - buffers = (WSABUF *)gpr_malloc(sizeof(WSABUF) * tcp->write_slices.count); + if (tcp->write_slices->count > GPR_ARRAY_SIZE(local_buffers)) { + buffers = (WSABUF *)gpr_malloc(sizeof(WSABUF) * tcp->write_slices->count); allocated = buffers; } - for (i = 0; i < tcp->write_slices.count; i++) { - buffers[i].len = GPR_SLICE_LENGTH(tcp->write_slices.slices[i]); - buffers[i].buf = (char *)GPR_SLICE_START_PTR(tcp->write_slices.slices[i]); + for (i = 0; i < tcp->write_slices->count; i++) { + buffers[i].len = GPR_SLICE_LENGTH(tcp->write_slices->slices[i]); + buffers[i].buf = (char *)GPR_SLICE_START_PTR(tcp->write_slices->slices[i]); } /* First, let's try a synchronous, non-blocking write. */ - status = WSASend(socket->socket, buffers, tcp->write_slices.count, + status = WSASend(socket->socket, buffers, tcp->write_slices->count, &bytes_sent, 0, NULL, NULL); info->wsa_error = status == 0 ? 0 : WSAGetLastError(); @@ -324,10 +353,10 @@ static grpc_endpoint_write_status win_write(grpc_endpoint *ep, connection that has its send queue filled up. But if we don't, then we can avoid doing an async write operation at all. */ if (info->wsa_error != WSAEWOULDBLOCK) { - grpc_endpoint_write_status ret = GRPC_ENDPOINT_WRITE_ERROR; + grpc_endpoint_op_status ret = GRPC_ENDPOINT_ERROR; if (status == 0) { - ret = GRPC_ENDPOINT_WRITE_DONE; - GPR_ASSERT(bytes_sent == tcp->write_slices.length); + ret = GRPC_ENDPOINT_DONE; + GPR_ASSERT(bytes_sent == tcp->write_slices->length); } else { if (socket->read_info.wsa_error != WSAECONNRESET) { char *utf8_message = gpr_format_message(info->wsa_error); @@ -336,33 +365,31 @@ static grpc_endpoint_write_status win_write(grpc_endpoint *ep, } } if (allocated) gpr_free(allocated); - gpr_slice_buffer_reset_and_unref(&tcp->write_slices); tcp->socket->write_info.outstanding = 0; - tcp_unref(tcp); + TCP_UNREF(tcp, "write"); return ret; } /* If we got a WSAEWOULDBLOCK earlier, then we need to re-do the same operation, this time asynchronously. */ memset(&socket->write_info.overlapped, 0, sizeof(OVERLAPPED)); - status = WSASend(socket->socket, buffers, tcp->write_slices.count, + status = WSASend(socket->socket, buffers, tcp->write_slices->count, &bytes_sent, 0, &socket->write_info.overlapped, NULL); if (allocated) gpr_free(allocated); if (status != 0) { int wsa_error = WSAGetLastError(); if (wsa_error != WSA_IO_PENDING) { - gpr_slice_buffer_reset_and_unref(&tcp->write_slices); tcp->socket->write_info.outstanding = 0; - tcp_unref(tcp); - return GRPC_ENDPOINT_WRITE_ERROR; + TCP_UNREF(tcp, "write"); + return GRPC_ENDPOINT_ERROR; } } /* As all is now setup, we can now ask for the IOCP notification. It may trigger the callback immediately however, but no matter. */ grpc_socket_notify_on_write(socket, on_write, tcp); - return GRPC_ENDPOINT_WRITE_PENDING; + return GRPC_ENDPOINT_PENDING; } static void win_add_to_pollset(grpc_endpoint *ep, grpc_pollset *ps) { @@ -387,19 +414,17 @@ static void win_add_to_pollset_set(grpc_endpoint *ep, grpc_pollset_set *pss) { concurrent access of the data structure in that regard. */ static void win_shutdown(grpc_endpoint *ep) { grpc_tcp *tcp = (grpc_tcp *)ep; - int extra_refs = 0; gpr_mu_lock(&tcp->mu); /* At that point, what may happen is that we're already inside the IOCP callback. See the comments in on_read and on_write. */ tcp->shutting_down = 1; - extra_refs = grpc_winsocket_shutdown(tcp->socket); - while (extra_refs--) tcp_ref(tcp); + grpc_winsocket_shutdown(tcp->socket); gpr_mu_unlock(&tcp->mu); } static void win_destroy(grpc_endpoint *ep) { grpc_tcp *tcp = (grpc_tcp *)ep; - tcp_unref(tcp); + TCP_UNREF(tcp, "destroy"); } static char *win_get_peer(grpc_endpoint *ep) { @@ -408,8 +433,8 @@ static char *win_get_peer(grpc_endpoint *ep) { } static grpc_endpoint_vtable vtable = { - win_notify_on_read, win_write, win_add_to_pollset, win_add_to_pollset_set, - win_shutdown, win_destroy, win_get_peer}; + win_read, win_write, win_add_to_pollset, win_add_to_pollset_set, + win_shutdown, win_destroy, win_get_peer}; grpc_endpoint *grpc_tcp_create(grpc_winsocket *socket, char *peer_string) { grpc_tcp *tcp = (grpc_tcp *)gpr_malloc(sizeof(grpc_tcp)); @@ -417,7 +442,6 @@ grpc_endpoint *grpc_tcp_create(grpc_winsocket *socket, char *peer_string) { tcp->base.vtable = &vtable; tcp->socket = socket; gpr_mu_init(&tcp->mu); - gpr_slice_buffer_init(&tcp->write_slices); gpr_ref_init(&tcp->refcount, 1); tcp->peer_string = gpr_strdup(peer_string); return &tcp->base; diff --git a/src/core/security/secure_endpoint.c b/src/core/security/secure_endpoint.c index 81b3e33cb2..b696e384fc 100644 --- a/src/core/security/secure_endpoint.c +++ b/src/core/security/secure_endpoint.c @@ -49,15 +49,15 @@ typedef struct { struct tsi_frame_protector *protector; gpr_mu protector_mu; /* saved upper level callbacks and user_data. */ - grpc_endpoint_read_cb read_cb; - void *read_user_data; - grpc_endpoint_write_cb write_cb; - void *write_user_data; + grpc_iomgr_closure *read_cb; + grpc_iomgr_closure *write_cb; + grpc_iomgr_closure on_read; + gpr_slice_buffer *read_buffer; + gpr_slice_buffer source_buffer; /* saved handshaker leftover data to unprotect. */ gpr_slice_buffer leftover_bytes; /* buffers for read and write */ gpr_slice read_staging_buffer; - gpr_slice_buffer input_buffer; gpr_slice write_staging_buffer; gpr_slice_buffer output_buffer; @@ -67,62 +67,91 @@ typedef struct { int grpc_trace_secure_endpoint = 0; -static void secure_endpoint_ref(secure_endpoint *ep) { gpr_ref(&ep->ref); } - static void destroy(secure_endpoint *secure_ep) { secure_endpoint *ep = secure_ep; grpc_endpoint_destroy(ep->wrapped_ep); tsi_frame_protector_destroy(ep->protector); gpr_slice_buffer_destroy(&ep->leftover_bytes); gpr_slice_unref(ep->read_staging_buffer); - gpr_slice_buffer_destroy(&ep->input_buffer); gpr_slice_unref(ep->write_staging_buffer); gpr_slice_buffer_destroy(&ep->output_buffer); + gpr_slice_buffer_destroy(&ep->source_buffer); gpr_mu_destroy(&ep->protector_mu); gpr_free(ep); } +/*#define GRPC_SECURE_ENDPOINT_REFCOUNT_DEBUG*/ +#ifdef GRPC_SECURE_ENDPOINT_REFCOUNT_DEBUG +#define SECURE_ENDPOINT_UNREF(ep, reason) \ + secure_endpoint_unref((ep), (reason), __FILE__, __LINE__) +#define SECURE_ENDPOINT_REF(ep, reason) \ + secure_endpoint_ref((ep), (reason), __FILE__, __LINE__) +static void secure_endpoint_unref(secure_endpoint *ep, const char *reason, + const char *file, int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "SECENDP unref %p : %s %d -> %d", + ep, reason, ep->ref.count, ep->ref.count - 1); + if (gpr_unref(&ep->ref)) { + destroy(ep); + } +} + +static void secure_endpoint_ref(secure_endpoint *ep, const char *reason, + const char *file, int line) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "SECENDP ref %p : %s %d -> %d", + ep, reason, ep->ref.count, ep->ref.count + 1); + gpr_ref(&ep->ref); +} +#else +#define SECURE_ENDPOINT_UNREF(ep, reason) secure_endpoint_unref((ep)) +#define SECURE_ENDPOINT_REF(ep, reason) secure_endpoint_ref((ep)) static void secure_endpoint_unref(secure_endpoint *ep) { if (gpr_unref(&ep->ref)) { destroy(ep); } } +static void secure_endpoint_ref(secure_endpoint *ep) { gpr_ref(&ep->ref); } +#endif + static void flush_read_staging_buffer(secure_endpoint *ep, gpr_uint8 **cur, gpr_uint8 **end) { - gpr_slice_buffer_add(&ep->input_buffer, ep->read_staging_buffer); + gpr_slice_buffer_add(ep->read_buffer, ep->read_staging_buffer); ep->read_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE); *cur = GPR_SLICE_START_PTR(ep->read_staging_buffer); *end = GPR_SLICE_END_PTR(ep->read_staging_buffer); } -static void call_read_cb(secure_endpoint *ep, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { +static void call_read_cb(secure_endpoint *ep, int success) { if (grpc_trace_secure_endpoint) { size_t i; - for (i = 0; i < nslices; i++) { - char *data = gpr_dump_slice(slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); + for (i = 0; i < ep->read_buffer->count; i++) { + char *data = gpr_dump_slice(ep->read_buffer->slices[i], + GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_DEBUG, "READ %p: %s", ep, data); gpr_free(data); } } - ep->read_cb(ep->read_user_data, slices, nslices, error); - secure_endpoint_unref(ep); + ep->read_buffer = NULL; + ep->read_cb->cb(ep->read_cb->cb_arg, success); + SECURE_ENDPOINT_UNREF(ep, "read"); } -static void on_read(void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { +static int on_read(void *user_data, int success) { unsigned i; gpr_uint8 keep_looping = 0; - size_t input_buffer_count = 0; tsi_result result = TSI_OK; secure_endpoint *ep = (secure_endpoint *)user_data; gpr_uint8 *cur = GPR_SLICE_START_PTR(ep->read_staging_buffer); gpr_uint8 *end = GPR_SLICE_END_PTR(ep->read_staging_buffer); + if (!success) { + gpr_slice_buffer_reset_and_unref(ep->read_buffer); + return 0; + } + /* TODO(yangg) check error, maybe bail out early */ - for (i = 0; i < nslices; i++) { - gpr_slice encrypted = slices[i]; + for (i = 0; i < ep->source_buffer.count; i++) { + gpr_slice encrypted = ep->source_buffer.slices[i]; gpr_uint8 *message_bytes = GPR_SLICE_START_PTR(encrypted); size_t message_size = GPR_SLICE_LENGTH(encrypted); @@ -161,7 +190,7 @@ static void on_read(void *user_data, gpr_slice *slices, size_t nslices, if (cur != GPR_SLICE_START_PTR(ep->read_staging_buffer)) { gpr_slice_buffer_add( - &ep->input_buffer, + ep->read_buffer, gpr_slice_split_head( &ep->read_staging_buffer, (size_t)(cur - GPR_SLICE_START_PTR(ep->read_staging_buffer)))); @@ -169,38 +198,53 @@ static void on_read(void *user_data, gpr_slice *slices, size_t nslices, /* TODO(yangg) experiment with moving this block after read_cb to see if it helps latency */ - for (i = 0; i < nslices; i++) { - gpr_slice_unref(slices[i]); - } + gpr_slice_buffer_reset_and_unref(&ep->source_buffer); if (result != TSI_OK) { - gpr_slice_buffer_reset_and_unref(&ep->input_buffer); - call_read_cb(ep, NULL, 0, GRPC_ENDPOINT_CB_ERROR); - return; + gpr_slice_buffer_reset_and_unref(ep->read_buffer); + return 0; } - /* The upper level will unref the slices. */ - input_buffer_count = ep->input_buffer.count; - ep->input_buffer.count = 0; - call_read_cb(ep, ep->input_buffer.slices, input_buffer_count, error); + + return 1; +} + +static void on_read_cb(void *user_data, int success) { + call_read_cb(user_data, on_read(user_data, success)); } -static void endpoint_notify_on_read(grpc_endpoint *secure_ep, - grpc_endpoint_read_cb cb, void *user_data) { +static grpc_endpoint_op_status endpoint_read(grpc_endpoint *secure_ep, + gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) { secure_endpoint *ep = (secure_endpoint *)secure_ep; + int immediate_read_success = -1; ep->read_cb = cb; - ep->read_user_data = user_data; - - secure_endpoint_ref(ep); + ep->read_buffer = slices; + gpr_slice_buffer_reset_and_unref(ep->read_buffer); if (ep->leftover_bytes.count) { - size_t leftover_nslices = ep->leftover_bytes.count; - ep->leftover_bytes.count = 0; - on_read(ep, ep->leftover_bytes.slices, leftover_nslices, - GRPC_ENDPOINT_CB_OK); - return; + gpr_slice_buffer_swap(&ep->leftover_bytes, &ep->source_buffer); + GPR_ASSERT(ep->leftover_bytes.count == 0); + return on_read(ep, 1) ? GRPC_ENDPOINT_DONE : GRPC_ENDPOINT_ERROR; } - grpc_endpoint_notify_on_read(ep->wrapped_ep, on_read, ep); + SECURE_ENDPOINT_REF(ep, "read"); + + switch ( + grpc_endpoint_read(ep->wrapped_ep, &ep->source_buffer, &ep->on_read)) { + case GRPC_ENDPOINT_DONE: + immediate_read_success = on_read(ep, 1); + break; + case GRPC_ENDPOINT_PENDING: + return GRPC_ENDPOINT_PENDING; + case GRPC_ENDPOINT_ERROR: + immediate_read_success = on_read(ep, 0); + break; + } + + GPR_ASSERT(immediate_read_success != -1); + SECURE_ENDPOINT_UNREF(ep, "read"); + + return immediate_read_success ? GRPC_ENDPOINT_DONE : GRPC_ENDPOINT_ERROR; } static void flush_write_staging_buffer(secure_endpoint *ep, gpr_uint8 **cur, @@ -211,36 +255,28 @@ static void flush_write_staging_buffer(secure_endpoint *ep, gpr_uint8 **cur, *end = GPR_SLICE_END_PTR(ep->write_staging_buffer); } -static void on_write(void *data, grpc_endpoint_cb_status error) { - secure_endpoint *ep = data; - ep->write_cb(ep->write_user_data, error); - secure_endpoint_unref(ep); -} - -static grpc_endpoint_write_status endpoint_write(grpc_endpoint *secure_ep, - gpr_slice *slices, - size_t nslices, - grpc_endpoint_write_cb cb, - void *user_data) { +static grpc_endpoint_op_status endpoint_write(grpc_endpoint *secure_ep, + gpr_slice_buffer *slices, + grpc_iomgr_closure *cb) { unsigned i; - size_t output_buffer_count = 0; tsi_result result = TSI_OK; secure_endpoint *ep = (secure_endpoint *)secure_ep; gpr_uint8 *cur = GPR_SLICE_START_PTR(ep->write_staging_buffer); gpr_uint8 *end = GPR_SLICE_END_PTR(ep->write_staging_buffer); - grpc_endpoint_write_status status; - GPR_ASSERT(ep->output_buffer.count == 0); + + gpr_slice_buffer_reset_and_unref(&ep->output_buffer); if (grpc_trace_secure_endpoint) { - for (i = 0; i < nslices; i++) { - char *data = gpr_dump_slice(slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); + for (i = 0; i < slices->count; i++) { + char *data = + gpr_dump_slice(slices->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_DEBUG, "WRITE %p: %s", ep, data); gpr_free(data); } } - for (i = 0; i < nslices; i++) { - gpr_slice plain = slices[i]; + for (i = 0; i < slices->count; i++) { + gpr_slice plain = slices->slices[i]; gpr_uint8 *message_bytes = GPR_SLICE_START_PTR(plain); size_t message_size = GPR_SLICE_LENGTH(plain); while (message_size > 0) { @@ -290,29 +326,13 @@ static grpc_endpoint_write_status endpoint_write(grpc_endpoint *secure_ep, } } - for (i = 0; i < nslices; i++) { - gpr_slice_unref(slices[i]); - } - if (result != TSI_OK) { /* TODO(yangg) do different things according to the error type? */ gpr_slice_buffer_reset_and_unref(&ep->output_buffer); - return GRPC_ENDPOINT_WRITE_ERROR; + return GRPC_ENDPOINT_ERROR; } - /* clear output_buffer and let the lower level handle its slices. */ - output_buffer_count = ep->output_buffer.count; - ep->output_buffer.count = 0; - ep->write_cb = cb; - ep->write_user_data = user_data; - /* Need to keep the endpoint alive across a transport */ - secure_endpoint_ref(ep); - status = grpc_endpoint_write(ep->wrapped_ep, ep->output_buffer.slices, - output_buffer_count, on_write, ep); - if (status != GRPC_ENDPOINT_WRITE_PENDING) { - secure_endpoint_unref(ep); - } - return status; + return grpc_endpoint_write(ep->wrapped_ep, &ep->output_buffer, cb); } static void endpoint_shutdown(grpc_endpoint *secure_ep) { @@ -320,9 +340,9 @@ static void endpoint_shutdown(grpc_endpoint *secure_ep) { grpc_endpoint_shutdown(ep->wrapped_ep); } -static void endpoint_unref(grpc_endpoint *secure_ep) { +static void endpoint_destroy(grpc_endpoint *secure_ep) { secure_endpoint *ep = (secure_endpoint *)secure_ep; - secure_endpoint_unref(ep); + SECURE_ENDPOINT_UNREF(ep, "destroy"); } static void endpoint_add_to_pollset(grpc_endpoint *secure_ep, @@ -343,9 +363,9 @@ static char *endpoint_get_peer(grpc_endpoint *secure_ep) { } static const grpc_endpoint_vtable vtable = { - endpoint_notify_on_read, endpoint_write, + endpoint_read, endpoint_write, endpoint_add_to_pollset, endpoint_add_to_pollset_set, - endpoint_shutdown, endpoint_unref, + endpoint_shutdown, endpoint_destroy, endpoint_get_peer}; grpc_endpoint *grpc_secure_endpoint_create( @@ -363,8 +383,10 @@ grpc_endpoint *grpc_secure_endpoint_create( } ep->write_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE); ep->read_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE); - gpr_slice_buffer_init(&ep->input_buffer); gpr_slice_buffer_init(&ep->output_buffer); + gpr_slice_buffer_init(&ep->source_buffer); + ep->read_buffer = NULL; + grpc_iomgr_closure_init(&ep->on_read, on_read_cb, ep); gpr_mu_init(&ep->protector_mu); gpr_ref_init(&ep->ref, 1); return &ep->base; diff --git a/src/core/security/secure_transport_setup.c b/src/core/security/secure_transport_setup.c index 0c3572b53c..bf0079577e 100644 --- a/src/core/security/secure_transport_setup.c +++ b/src/core/security/secure_transport_setup.c @@ -50,16 +50,17 @@ typedef struct { grpc_endpoint *wrapped_endpoint; grpc_endpoint *secure_endpoint; gpr_slice_buffer left_overs; + gpr_slice_buffer incoming; + gpr_slice_buffer outgoing; grpc_secure_transport_setup_done_cb cb; void *user_data; + grpc_iomgr_closure on_handshake_data_sent_to_peer; + grpc_iomgr_closure on_handshake_data_received_from_peer; } grpc_secure_transport_setup; -static void on_handshake_data_received_from_peer(void *setup, gpr_slice *slices, - size_t nslices, - grpc_endpoint_cb_status error); +static void on_handshake_data_received_from_peer(void *setup, int success); -static void on_handshake_data_sent_to_peer(void *setup, - grpc_endpoint_cb_status error); +static void on_handshake_data_sent_to_peer(void *setup, int success); static void secure_transport_setup_done(grpc_secure_transport_setup *s, int is_success) { @@ -78,6 +79,8 @@ static void secure_transport_setup_done(grpc_secure_transport_setup *s, if (s->handshaker != NULL) tsi_handshaker_destroy(s->handshaker); if (s->handshake_buffer != NULL) gpr_free(s->handshake_buffer); gpr_slice_buffer_destroy(&s->left_overs); + gpr_slice_buffer_destroy(&s->outgoing); + gpr_slice_buffer_destroy(&s->incoming); GRPC_SECURITY_CONNECTOR_UNREF(s->connector, "secure_transport_setup"); gpr_free(s); } @@ -102,6 +105,8 @@ static void on_peer_checked(void *user_data, grpc_security_status status) { s->secure_endpoint = grpc_secure_endpoint_create(protector, s->wrapped_endpoint, s->left_overs.slices, s->left_overs.count); + s->left_overs.count = 0; + s->left_overs.length = 0; secure_transport_setup_done(s, 1); return; } @@ -132,7 +137,6 @@ static void send_handshake_bytes_to_peer(grpc_secure_transport_setup *s) { size_t offset = 0; tsi_result result = TSI_OK; gpr_slice to_send; - grpc_endpoint_write_status write_status; do { size_t to_send_size = s->handshake_buffer_size - offset; @@ -155,28 +159,25 @@ static void send_handshake_bytes_to_peer(grpc_secure_transport_setup *s) { to_send = gpr_slice_from_copied_buffer((const char *)s->handshake_buffer, offset); + gpr_slice_buffer_reset_and_unref(&s->outgoing); + gpr_slice_buffer_add(&s->outgoing, to_send); /* TODO(klempner,jboeuf): This should probably use the client setup deadline */ - write_status = grpc_endpoint_write(s->wrapped_endpoint, &to_send, 1, - on_handshake_data_sent_to_peer, s); - if (write_status == GRPC_ENDPOINT_WRITE_ERROR) { - gpr_log(GPR_ERROR, "Could not send handshake data to peer."); - secure_transport_setup_done(s, 0); - } else if (write_status == GRPC_ENDPOINT_WRITE_DONE) { - on_handshake_data_sent_to_peer(s, GRPC_ENDPOINT_CB_OK); - } -} - -static void cleanup_slices(gpr_slice *slices, size_t num_slices) { - size_t i; - for (i = 0; i < num_slices; i++) { - gpr_slice_unref(slices[i]); + switch (grpc_endpoint_write(s->wrapped_endpoint, &s->outgoing, + &s->on_handshake_data_sent_to_peer)) { + case GRPC_ENDPOINT_ERROR: + gpr_log(GPR_ERROR, "Could not send handshake data to peer."); + secure_transport_setup_done(s, 0); + break; + case GRPC_ENDPOINT_DONE: + on_handshake_data_sent_to_peer(s, 1); + break; + case GRPC_ENDPOINT_PENDING: + break; } } -static void on_handshake_data_received_from_peer( - void *setup, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { +static void on_handshake_data_received_from_peer(void *setup, int success) { grpc_secure_transport_setup *s = setup; size_t consumed_slice_size = 0; tsi_result result = TSI_OK; @@ -184,32 +185,37 @@ static void on_handshake_data_received_from_peer( size_t num_left_overs; int has_left_overs_in_current_slice = 0; - if (error != GRPC_ENDPOINT_CB_OK) { + if (!success) { gpr_log(GPR_ERROR, "Read failed."); - cleanup_slices(slices, nslices); secure_transport_setup_done(s, 0); return; } - for (i = 0; i < nslices; i++) { - consumed_slice_size = GPR_SLICE_LENGTH(slices[i]); + for (i = 0; i < s->incoming.count; i++) { + consumed_slice_size = GPR_SLICE_LENGTH(s->incoming.slices[i]); result = tsi_handshaker_process_bytes_from_peer( - s->handshaker, GPR_SLICE_START_PTR(slices[i]), &consumed_slice_size); + s->handshaker, GPR_SLICE_START_PTR(s->incoming.slices[i]), + &consumed_slice_size); if (!tsi_handshaker_is_in_progress(s->handshaker)) break; } if (tsi_handshaker_is_in_progress(s->handshaker)) { /* We may need more data. */ if (result == TSI_INCOMPLETE_DATA) { - /* TODO(klempner,jboeuf): This should probably use the client setup - deadline */ - grpc_endpoint_notify_on_read(s->wrapped_endpoint, - on_handshake_data_received_from_peer, setup); - cleanup_slices(slices, nslices); + switch (grpc_endpoint_read(s->wrapped_endpoint, &s->incoming, + &s->on_handshake_data_received_from_peer)) { + case GRPC_ENDPOINT_DONE: + on_handshake_data_received_from_peer(s, 1); + break; + case GRPC_ENDPOINT_ERROR: + on_handshake_data_received_from_peer(s, 0); + break; + case GRPC_ENDPOINT_PENDING: + break; + } return; } else { send_handshake_bytes_to_peer(s); - cleanup_slices(slices, nslices); return; } } @@ -217,42 +223,40 @@ static void on_handshake_data_received_from_peer( if (result != TSI_OK) { gpr_log(GPR_ERROR, "Handshake failed with error %s", tsi_result_to_string(result)); - cleanup_slices(slices, nslices); secure_transport_setup_done(s, 0); return; } /* Handshake is done and successful this point. */ has_left_overs_in_current_slice = - (consumed_slice_size < GPR_SLICE_LENGTH(slices[i])); - num_left_overs = (has_left_overs_in_current_slice ? 1 : 0) + nslices - i - 1; + (consumed_slice_size < GPR_SLICE_LENGTH(s->incoming.slices[i])); + num_left_overs = + (has_left_overs_in_current_slice ? 1 : 0) + s->incoming.count - i - 1; if (num_left_overs == 0) { - cleanup_slices(slices, nslices); check_peer(s); return; } - cleanup_slices(slices, nslices - num_left_overs); - /* Put the leftovers in our buffer (ownership transfered). */ if (has_left_overs_in_current_slice) { - gpr_slice_buffer_add(&s->left_overs, - gpr_slice_split_tail(&slices[i], consumed_slice_size)); - gpr_slice_unref(slices[i]); /* split_tail above increments refcount. */ + gpr_slice_buffer_add( + &s->left_overs, + gpr_slice_split_tail(&s->incoming.slices[i], consumed_slice_size)); + gpr_slice_unref( + s->incoming.slices[i]); /* split_tail above increments refcount. */ } gpr_slice_buffer_addn( - &s->left_overs, &slices[i + 1], + &s->left_overs, &s->incoming.slices[i + 1], num_left_overs - (size_t)has_left_overs_in_current_slice); check_peer(s); } /* If setup is NULL, the setup is done. */ -static void on_handshake_data_sent_to_peer(void *setup, - grpc_endpoint_cb_status error) { +static void on_handshake_data_sent_to_peer(void *setup, int success) { grpc_secure_transport_setup *s = setup; /* Make sure that write is OK. */ - if (error != GRPC_ENDPOINT_CB_OK) { - gpr_log(GPR_ERROR, "Write failed with error %d.", error); + if (!success) { + gpr_log(GPR_ERROR, "Write failed."); if (setup != NULL) secure_transport_setup_done(s, 0); return; } @@ -261,8 +265,17 @@ static void on_handshake_data_sent_to_peer(void *setup, if (tsi_handshaker_is_in_progress(s->handshaker)) { /* TODO(klempner,jboeuf): This should probably use the client setup deadline */ - grpc_endpoint_notify_on_read(s->wrapped_endpoint, - on_handshake_data_received_from_peer, setup); + switch (grpc_endpoint_read(s->wrapped_endpoint, &s->incoming, + &s->on_handshake_data_received_from_peer)) { + case GRPC_ENDPOINT_ERROR: + on_handshake_data_received_from_peer(s, 0); + break; + case GRPC_ENDPOINT_PENDING: + break; + case GRPC_ENDPOINT_DONE: + on_handshake_data_received_from_peer(s, 1); + break; + } } else { check_peer(s); } @@ -288,6 +301,12 @@ void grpc_setup_secure_transport(grpc_security_connector *connector, s->wrapped_endpoint = nonsecure_endpoint; s->user_data = user_data; s->cb = cb; + grpc_iomgr_closure_init(&s->on_handshake_data_sent_to_peer, + on_handshake_data_sent_to_peer, s); + grpc_iomgr_closure_init(&s->on_handshake_data_received_from_peer, + on_handshake_data_received_from_peer, s); gpr_slice_buffer_init(&s->left_overs); + gpr_slice_buffer_init(&s->outgoing); + gpr_slice_buffer_init(&s->incoming); send_handshake_bytes_to_peer(s); } diff --git a/src/core/support/slice_buffer.c b/src/core/support/slice_buffer.c index 987d5cb9b5..6482ef9c9f 100644 --- a/src/core/support/slice_buffer.c +++ b/src/core/support/slice_buffer.c @@ -207,3 +207,25 @@ void gpr_slice_buffer_move_into(gpr_slice_buffer *src, gpr_slice_buffer *dst) { src->count = 0; src->length = 0; } + +void gpr_slice_buffer_trim_end(gpr_slice_buffer *sb, size_t n) { + GPR_ASSERT(n <= sb->length); + sb->length -= n; + for (;;) { + size_t idx = sb->count - 1; + gpr_slice slice = sb->slices[idx]; + size_t slice_len = GPR_SLICE_LENGTH(slice); + if (slice_len > n) { + sb->slices[idx] = gpr_slice_sub_no_ref(slice, 0, slice_len - n); + return; + } else if (slice_len == n) { + gpr_slice_unref(slice); + sb->count = idx; + return; + } else { + gpr_slice_unref(slice); + n -= slice_len; + sb->count = idx; + } + } +} diff --git a/src/core/transport/chttp2/internal.h b/src/core/transport/chttp2/internal.h index 42cf0ecd5b..a1b773b1ca 100644 --- a/src/core/transport/chttp2/internal.h +++ b/src/core/transport/chttp2/internal.h @@ -214,6 +214,8 @@ typedef struct { grpc_chttp2_hpack_compressor hpack_compressor; /** is this a client? */ gpr_uint8 is_client; + /** callback for when writing is done */ + grpc_iomgr_closure done_cb; } grpc_chttp2_transport_writing; struct grpc_chttp2_transport_parsing { @@ -329,8 +331,11 @@ struct grpc_chttp2_transport { /** closure to execute writing */ grpc_iomgr_closure writing_action; - /** closure to start reading from the endpoint */ - grpc_iomgr_closure reading_action; + /** closure to finish reading from the endpoint */ + grpc_iomgr_closure recv_data; + + /** incoming read bytes */ + gpr_slice_buffer read_buffer; /** address to place a newly accepted stream - set and unset by grpc_chttp2_parsing_accept_stream; used by init_stream to @@ -463,8 +468,7 @@ int grpc_chttp2_unlocking_check_writes(grpc_chttp2_transport_global *global, grpc_chttp2_transport_writing *writing); void grpc_chttp2_perform_writes( grpc_chttp2_transport_writing *transport_writing, grpc_endpoint *endpoint); -void grpc_chttp2_terminate_writing( - grpc_chttp2_transport_writing *transport_writing, int success); +void grpc_chttp2_terminate_writing(void *transport_writing, int success); void grpc_chttp2_cleanup_writing(grpc_chttp2_transport_global *global, grpc_chttp2_transport_writing *writing); diff --git a/src/core/transport/chttp2/writing.c b/src/core/transport/chttp2/writing.c index 123061b3fc..2c8c48f47b 100644 --- a/src/core/transport/chttp2/writing.c +++ b/src/core/transport/chttp2/writing.c @@ -37,7 +37,6 @@ #include <grpc/support/log.h> static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing); -static void finish_write_cb(void *tw, grpc_endpoint_cb_status write_status); int grpc_chttp2_unlocking_check_writes( grpc_chttp2_transport_global *transport_global, @@ -165,16 +164,15 @@ void grpc_chttp2_perform_writes( GPR_ASSERT(transport_writing->outbuf.count > 0); GPR_ASSERT(endpoint); - switch (grpc_endpoint_write(endpoint, transport_writing->outbuf.slices, - transport_writing->outbuf.count, finish_write_cb, - transport_writing)) { - case GRPC_ENDPOINT_WRITE_DONE: + switch (grpc_endpoint_write(endpoint, &transport_writing->outbuf, + &transport_writing->done_cb)) { + case GRPC_ENDPOINT_DONE: grpc_chttp2_terminate_writing(transport_writing, 1); break; - case GRPC_ENDPOINT_WRITE_ERROR: + case GRPC_ENDPOINT_ERROR: grpc_chttp2_terminate_writing(transport_writing, 0); break; - case GRPC_ENDPOINT_WRITE_PENDING: + case GRPC_ENDPOINT_PENDING: break; } } @@ -209,12 +207,6 @@ static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing) { } } -static void finish_write_cb(void *tw, grpc_endpoint_cb_status write_status) { - grpc_chttp2_transport_writing *transport_writing = tw; - grpc_chttp2_terminate_writing(transport_writing, - write_status == GRPC_ENDPOINT_CB_OK); -} - void grpc_chttp2_cleanup_writing( grpc_chttp2_transport_global *transport_global, grpc_chttp2_transport_writing *transport_writing) { @@ -243,6 +235,5 @@ void grpc_chttp2_cleanup_writing( grpc_chttp2_list_add_read_write_state_changed(transport_global, stream_global); } - transport_writing->outbuf.count = 0; - transport_writing->outbuf.length = 0; + gpr_slice_buffer_reset_and_unref(&transport_writing->outbuf); } diff --git a/src/core/transport/chttp2_transport.c b/src/core/transport/chttp2_transport.c index 1bbd210e46..8caa10c938 100644 --- a/src/core/transport/chttp2_transport.c +++ b/src/core/transport/chttp2_transport.c @@ -84,15 +84,13 @@ static void unlock_check_read_write_state(grpc_chttp2_transport *t); /* forward declarations of various callbacks that we'll build closures around */ static void writing_action(void *t, int iomgr_success_ignored); -static void reading_action(void *t, int iomgr_success_ignored); /** Set a transport level setting, and push it to our peer */ static void push_setting(grpc_chttp2_transport *t, grpc_chttp2_setting_id id, gpr_uint32 value); /** Endpoint callback to process incoming data */ -static void recv_data(void *tp, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error); +static void recv_data(void *tp, int success); /** Start disconnection chain */ static void drop_connection(grpc_chttp2_transport *t); @@ -143,6 +141,7 @@ static void destruct_transport(grpc_chttp2_transport *t) { grpc_chttp2_hpack_compressor_destroy(&t->writing.hpack_compressor); gpr_slice_buffer_destroy(&t->parsing.qbuf); + gpr_slice_buffer_destroy(&t->read_buffer); grpc_chttp2_hpack_parser_destroy(&t->parsing.hpack_parser); grpc_chttp2_goaway_parser_destroy(&t->parsing.goaway_parser); @@ -249,12 +248,16 @@ static void init_transport(grpc_chttp2_transport *t, gpr_slice_buffer_init(&t->writing.outbuf); grpc_chttp2_hpack_compressor_init(&t->writing.hpack_compressor, mdctx); grpc_iomgr_closure_init(&t->writing_action, writing_action, t); - grpc_iomgr_closure_init(&t->reading_action, reading_action, t); gpr_slice_buffer_init(&t->parsing.qbuf); grpc_chttp2_goaway_parser_init(&t->parsing.goaway_parser); grpc_chttp2_hpack_parser_init(&t->parsing.hpack_parser, t->metadata_context); + grpc_iomgr_closure_init(&t->writing.done_cb, grpc_chttp2_terminate_writing, + &t->writing); + grpc_iomgr_closure_init(&t->recv_data, recv_data, t); + gpr_slice_buffer_init(&t->read_buffer); + if (is_client) { gpr_slice_buffer_add( &t->global.qbuf, @@ -502,8 +505,8 @@ static void push_setting(grpc_chttp2_transport *t, grpc_chttp2_setting_id id, } } -void grpc_chttp2_terminate_writing( - grpc_chttp2_transport_writing *transport_writing, int success) { +void grpc_chttp2_terminate_writing(void *transport_writing_ptr, int success) { + grpc_chttp2_transport_writing *transport_writing = transport_writing_ptr; grpc_chttp2_transport *t = TRANSPORT_FROM_WRITING(transport_writing); lock(t); @@ -1060,74 +1063,76 @@ static void read_error_locked(grpc_chttp2_transport *t) { } /* tcp read callback */ -static void recv_data(void *tp, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { - grpc_chttp2_transport *t = tp; +static int recv_data_loop(grpc_chttp2_transport *t, int *success) { size_t i; - int unref = 0; + int keep_reading = 0; - switch (error) { - case GRPC_ENDPOINT_CB_SHUTDOWN: - case GRPC_ENDPOINT_CB_EOF: - case GRPC_ENDPOINT_CB_ERROR: - lock(t); + lock(t); + i = 0; + GPR_ASSERT(!t->parsing_active); + if (!t->closed) { + t->parsing_active = 1; + /* merge stream lists */ + grpc_chttp2_stream_map_move_into(&t->new_stream_map, + &t->parsing_stream_map); + grpc_chttp2_prepare_to_read(&t->global, &t->parsing); + gpr_mu_unlock(&t->mu); + for (; i < t->read_buffer.count && + grpc_chttp2_perform_read(&t->parsing, t->read_buffer.slices[i]); + i++) + ; + gpr_mu_lock(&t->mu); + if (i != t->read_buffer.count) { drop_connection(t); - read_error_locked(t); - unlock(t); - unref = 1; - for (i = 0; i < nslices; i++) gpr_slice_unref(slices[i]); - break; - case GRPC_ENDPOINT_CB_OK: - lock(t); - i = 0; - GPR_ASSERT(!t->parsing_active); - if (!t->closed) { - t->parsing_active = 1; - /* merge stream lists */ - grpc_chttp2_stream_map_move_into(&t->new_stream_map, - &t->parsing_stream_map); - grpc_chttp2_prepare_to_read(&t->global, &t->parsing); - gpr_mu_unlock(&t->mu); - for (; i < nslices && grpc_chttp2_perform_read(&t->parsing, slices[i]); - i++) { - gpr_slice_unref(slices[i]); - } - gpr_mu_lock(&t->mu); - if (i != nslices) { - drop_connection(t); - } - /* merge stream lists */ - grpc_chttp2_stream_map_move_into(&t->new_stream_map, - &t->parsing_stream_map); - t->global.concurrent_stream_count = - grpc_chttp2_stream_map_size(&t->parsing_stream_map); - if (t->parsing.initial_window_update != 0) { - grpc_chttp2_stream_map_for_each(&t->parsing_stream_map, - update_global_window, t); - t->parsing.initial_window_update = 0; - } - /* handle higher level things */ - grpc_chttp2_publish_reads(&t->global, &t->parsing); - t->parsing_active = 0; - } - if (i == nslices) { - grpc_chttp2_schedule_closure(&t->global, &t->reading_action, 1); - } else { - read_error_locked(t); - unref = 1; - } - unlock(t); - for (; i < nslices; i++) gpr_slice_unref(slices[i]); - break; + } + /* merge stream lists */ + grpc_chttp2_stream_map_move_into(&t->new_stream_map, + &t->parsing_stream_map); + t->global.concurrent_stream_count = + grpc_chttp2_stream_map_size(&t->parsing_stream_map); + if (t->parsing.initial_window_update != 0) { + grpc_chttp2_stream_map_for_each(&t->parsing_stream_map, + update_global_window, t); + t->parsing.initial_window_update = 0; + } + /* handle higher level things */ + grpc_chttp2_publish_reads(&t->global, &t->parsing); + t->parsing_active = 0; + } + if (!*success || i != t->read_buffer.count) { + drop_connection(t); + read_error_locked(t); + } else { + keep_reading = 1; } - if (unref) { + gpr_slice_buffer_reset_and_unref(&t->read_buffer); + unlock(t); + + if (keep_reading) { + switch (grpc_endpoint_read(t->ep, &t->read_buffer, &t->recv_data)) { + case GRPC_ENDPOINT_DONE: + *success = 1; + return 1; + case GRPC_ENDPOINT_ERROR: + *success = 0; + return 1; + case GRPC_ENDPOINT_PENDING: + return 0; + } + } else { UNREF_TRANSPORT(t, "recv_data"); + return 0; } + + gpr_log(GPR_ERROR, "should never reach here"); + abort(); } -static void reading_action(void *pt, int iomgr_success_ignored) { - grpc_chttp2_transport *t = pt; - grpc_endpoint_notify_on_read(t->ep, recv_data, t); +static void recv_data(void *tp, int success) { + grpc_chttp2_transport *t = tp; + + while (recv_data_loop(t, &success)) + ; } /* @@ -1240,5 +1245,6 @@ void grpc_chttp2_transport_start_reading(grpc_transport *transport, gpr_slice *slices, size_t nslices) { grpc_chttp2_transport *t = (grpc_chttp2_transport *)transport; REF_TRANSPORT(t, "recv_data"); /* matches unref inside recv_data */ - recv_data(t, slices, nslices, GRPC_ENDPOINT_CB_OK); + gpr_slice_buffer_addn(&t->read_buffer, slices, nslices); + recv_data(t, 1); } diff --git a/test/core/bad_client/bad_client.c b/test/core/bad_client/bad_client.c index 24bf5d3625..1d98879662 100644 --- a/test/core/bad_client/bad_client.c +++ b/test/core/bad_client/bad_client.c @@ -59,7 +59,7 @@ static void thd_func(void *arg) { gpr_event_set(&a->done_thd, (void *)1); } -static void done_write(void *arg, grpc_endpoint_cb_status status) { +static void done_write(void *arg, int success) { thd_args *a = arg; gpr_event_set(&a->done_write, (void *)1); } @@ -85,6 +85,8 @@ void grpc_run_bad_client_test(grpc_bad_client_server_side_validator validator, grpc_mdctx *mdctx = grpc_mdctx_create(); gpr_slice slice = gpr_slice_from_copied_buffer(client_payload, client_payload_length); + gpr_slice_buffer outgoing; + grpc_iomgr_closure done_write_closure; hex = gpr_dump(client_payload, client_payload_length, GPR_DUMP_HEX | GPR_DUMP_ASCII); @@ -122,14 +124,18 @@ void grpc_run_bad_client_test(grpc_bad_client_server_side_validator validator, /* Start validator */ gpr_thd_new(&id, thd_func, &a, NULL); + gpr_slice_buffer_init(&outgoing); + gpr_slice_buffer_add(&outgoing, slice); + grpc_iomgr_closure_init(&done_write_closure, done_write, &a); + /* Write data */ - switch (grpc_endpoint_write(sfd.client, &slice, 1, done_write, &a)) { - case GRPC_ENDPOINT_WRITE_DONE: + switch (grpc_endpoint_write(sfd.client, &outgoing, &done_write_closure)) { + case GRPC_ENDPOINT_DONE: done_write(&a, 1); break; - case GRPC_ENDPOINT_WRITE_PENDING: + case GRPC_ENDPOINT_PENDING: break; - case GRPC_ENDPOINT_WRITE_ERROR: + case GRPC_ENDPOINT_ERROR: done_write(&a, 0); break; } @@ -155,6 +161,7 @@ void grpc_run_bad_client_test(grpc_bad_client_server_side_validator validator, .type == GRPC_OP_COMPLETE); grpc_server_destroy(a.server); grpc_completion_queue_destroy(a.cq); + gpr_slice_buffer_destroy(&outgoing); grpc_shutdown(); } diff --git a/test/core/iomgr/endpoint_tests.c b/test/core/iomgr/endpoint_tests.c index 6ef8e9ca3b..ef673747a1 100644 --- a/test/core/iomgr/endpoint_tests.c +++ b/test/core/iomgr/endpoint_tests.c @@ -59,8 +59,7 @@ static grpc_pollset *g_pollset; -size_t count_and_unref_slices(gpr_slice *slices, size_t nslices, - int *current_data) { +size_t count_slices(gpr_slice *slices, size_t nslices, int *current_data) { size_t num_bytes = 0; size_t i; size_t j; @@ -72,7 +71,6 @@ size_t count_and_unref_slices(gpr_slice *slices, size_t nslices, *current_data = (*current_data + 1) % 256; } num_bytes += GPR_SLICE_LENGTH(slices[i]); - gpr_slice_unref(slices[i]); } return num_bytes; } @@ -121,86 +119,76 @@ struct read_and_write_test_state { int current_write_data; int read_done; int write_done; + gpr_slice_buffer incoming; + gpr_slice_buffer outgoing; + grpc_iomgr_closure done_read; + grpc_iomgr_closure done_write; }; -static void read_and_write_test_read_handler(void *data, gpr_slice *slices, - size_t nslices, - grpc_endpoint_cb_status error) { +static void read_and_write_test_read_handler(void *data, int success) { struct read_and_write_test_state *state = data; - GPR_ASSERT(error != GRPC_ENDPOINT_CB_ERROR); - if (error == GRPC_ENDPOINT_CB_SHUTDOWN) { - gpr_log(GPR_INFO, "Read handler shutdown"); - gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); - state->read_done = 1; - grpc_pollset_kick(g_pollset, NULL); - gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); - return; - } - state->bytes_read += - count_and_unref_slices(slices, nslices, &state->current_read_data); - if (state->bytes_read == state->target_bytes) { + state->bytes_read += count_slices( + state->incoming.slices, state->incoming.count, &state->current_read_data); + if (state->bytes_read == state->target_bytes || !success) { gpr_log(GPR_INFO, "Read handler done"); gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); - state->read_done = 1; + state->read_done = 1 + success; grpc_pollset_kick(g_pollset, NULL); gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); - } else { - grpc_endpoint_notify_on_read(state->read_ep, - read_and_write_test_read_handler, data); + } else if (success) { + switch (grpc_endpoint_read(state->read_ep, &state->incoming, + &state->done_read)) { + case GRPC_ENDPOINT_ERROR: + read_and_write_test_read_handler(data, 0); + break; + case GRPC_ENDPOINT_DONE: + read_and_write_test_read_handler(data, 1); + break; + case GRPC_ENDPOINT_PENDING: + break; + } } } -static void read_and_write_test_write_handler(void *data, - grpc_endpoint_cb_status error) { +static void read_and_write_test_write_handler(void *data, int success) { struct read_and_write_test_state *state = data; gpr_slice *slices = NULL; size_t nslices; - grpc_endpoint_write_status write_status; - - GPR_ASSERT(error != GRPC_ENDPOINT_CB_ERROR); - - gpr_log(GPR_DEBUG, "%s: error=%d", "read_and_write_test_write_handler", - error); - - if (error == GRPC_ENDPOINT_CB_SHUTDOWN) { - gpr_log(GPR_INFO, "Write handler shutdown"); - gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); - state->write_done = 1; - grpc_pollset_kick(g_pollset, NULL); - gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); - return; - } - - for (;;) { - /* Need to do inline writes until they don't succeed synchronously or we - finish writing */ - state->bytes_written += state->current_write_size; - if (state->target_bytes - state->bytes_written < - state->current_write_size) { - state->current_write_size = state->target_bytes - state->bytes_written; - } - if (state->current_write_size == 0) { - break; - } - - slices = allocate_blocks(state->current_write_size, 8192, &nslices, - &state->current_write_data); - write_status = - grpc_endpoint_write(state->write_ep, slices, nslices, - read_and_write_test_write_handler, state); - gpr_log(GPR_DEBUG, "write_status=%d", write_status); - GPR_ASSERT(write_status != GRPC_ENDPOINT_WRITE_ERROR); - free(slices); - if (write_status == GRPC_ENDPOINT_WRITE_PENDING) { - return; + grpc_endpoint_op_status write_status; + + if (success) { + for (;;) { + /* Need to do inline writes until they don't succeed synchronously or we + finish writing */ + state->bytes_written += state->current_write_size; + if (state->target_bytes - state->bytes_written < + state->current_write_size) { + state->current_write_size = state->target_bytes - state->bytes_written; + } + if (state->current_write_size == 0) { + break; + } + + slices = allocate_blocks(state->current_write_size, 8192, &nslices, + &state->current_write_data); + gpr_slice_buffer_reset_and_unref(&state->outgoing); + gpr_slice_buffer_addn(&state->outgoing, slices, nslices); + write_status = grpc_endpoint_write(state->write_ep, &state->outgoing, + &state->done_write); + gpr_log(GPR_DEBUG, "write_status=%d", write_status); + GPR_ASSERT(write_status != GRPC_ENDPOINT_ERROR); + free(slices); + if (write_status == GRPC_ENDPOINT_PENDING) { + return; + } } + GPR_ASSERT(state->bytes_written == state->target_bytes); } - GPR_ASSERT(state->bytes_written == state->target_bytes); gpr_log(GPR_INFO, "Write handler done"); gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); - state->write_done = 1; + state->write_done = 1 + success; grpc_pollset_kick(g_pollset, NULL); gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); } @@ -234,16 +222,31 @@ static void read_and_write_test(grpc_endpoint_test_config config, state.write_done = 0; state.current_read_data = 0; state.current_write_data = 0; + grpc_iomgr_closure_init(&state.done_read, read_and_write_test_read_handler, + &state); + grpc_iomgr_closure_init(&state.done_write, read_and_write_test_write_handler, + &state); + gpr_slice_buffer_init(&state.outgoing); + gpr_slice_buffer_init(&state.incoming); /* Get started by pretending an initial write completed */ /* NOTE: Sets up initial conditions so we can have the same write handler for the first iteration as for later iterations. It does the right thing even when bytes_written is unsigned. */ state.bytes_written -= state.current_write_size; - read_and_write_test_write_handler(&state, GRPC_ENDPOINT_CB_OK); + read_and_write_test_write_handler(&state, 1); - grpc_endpoint_notify_on_read(state.read_ep, read_and_write_test_read_handler, - &state); + switch ( + grpc_endpoint_read(state.read_ep, &state.incoming, &state.done_read)) { + case GRPC_ENDPOINT_PENDING: + break; + case GRPC_ENDPOINT_ERROR: + read_and_write_test_read_handler(&state, 0); + break; + case GRPC_ENDPOINT_DONE: + read_and_write_test_read_handler(&state, 1); + break; + } if (shutdown) { gpr_log(GPR_DEBUG, "shutdown read"); @@ -263,6 +266,8 @@ static void read_and_write_test(grpc_endpoint_test_config config, grpc_endpoint_destroy(state.read_ep); grpc_endpoint_destroy(state.write_ep); + gpr_slice_buffer_destroy(&state.outgoing); + gpr_slice_buffer_destroy(&state.incoming); end_test(config); } @@ -273,36 +278,40 @@ struct timeout_test_state { typedef struct { int done; grpc_endpoint *ep; + gpr_slice_buffer incoming; + grpc_iomgr_closure done_read; } shutdown_during_write_test_state; -static void shutdown_during_write_test_read_handler( - void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { - size_t i; +static void shutdown_during_write_test_read_handler(void *user_data, + int success) { shutdown_during_write_test_state *st = user_data; - for (i = 0; i < nslices; i++) { - gpr_slice_unref(slices[i]); - } - - if (error != GRPC_ENDPOINT_CB_OK) { + if (!success) { grpc_endpoint_destroy(st->ep); gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); - st->done = error; + st->done = 1; grpc_pollset_kick(g_pollset, NULL); gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); } else { - grpc_endpoint_notify_on_read( - st->ep, shutdown_during_write_test_read_handler, user_data); + switch (grpc_endpoint_read(st->ep, &st->incoming, &st->done_read)) { + case GRPC_ENDPOINT_PENDING: + break; + case GRPC_ENDPOINT_ERROR: + shutdown_during_write_test_read_handler(user_data, 0); + break; + case GRPC_ENDPOINT_DONE: + shutdown_during_write_test_read_handler(user_data, 1); + break; + } } } -static void shutdown_during_write_test_write_handler( - void *user_data, grpc_endpoint_cb_status error) { +static void shutdown_during_write_test_write_handler(void *user_data, + int success) { shutdown_during_write_test_state *st = user_data; - gpr_log(GPR_INFO, "shutdown_during_write_test_write_handler: error = %d", - error); - if (error == 0) { + gpr_log(GPR_INFO, "shutdown_during_write_test_write_handler: success = %d", + success); + if (success) { /* This happens about 0.5% of the time when run under TSAN, and is entirely legitimate, but means we aren't testing the path we think we are. */ /* TODO(klempner): Change this test to retry the write in that case */ @@ -325,6 +334,8 @@ static void shutdown_during_write_test(grpc_endpoint_test_config config, shutdown_during_write_test_state read_st; shutdown_during_write_test_state write_st; gpr_slice *slices; + gpr_slice_buffer outgoing; + grpc_iomgr_closure done_write; grpc_endpoint_test_fixture f = begin_test(config, "shutdown_during_write_test", slice_size); @@ -335,19 +346,26 @@ static void shutdown_during_write_test(grpc_endpoint_test_config config, read_st.done = 0; write_st.done = 0; - grpc_endpoint_notify_on_read( - read_st.ep, shutdown_during_write_test_read_handler, &read_st); + grpc_iomgr_closure_init(&done_write, shutdown_during_write_test_write_handler, + &write_st); + grpc_iomgr_closure_init(&read_st.done_read, + shutdown_during_write_test_read_handler, &read_st); + gpr_slice_buffer_init(&read_st.incoming); + gpr_slice_buffer_init(&outgoing); + + GPR_ASSERT(grpc_endpoint_read(read_st.ep, &read_st.incoming, + &read_st.done_read) == GRPC_ENDPOINT_PENDING); for (size = 1;; size *= 2) { slices = allocate_blocks(size, 1, &nblocks, ¤t_data); - switch (grpc_endpoint_write(write_st.ep, slices, nblocks, - shutdown_during_write_test_write_handler, - &write_st)) { - case GRPC_ENDPOINT_WRITE_DONE: + gpr_slice_buffer_reset_and_unref(&outgoing); + gpr_slice_buffer_addn(&outgoing, slices, nblocks); + switch (grpc_endpoint_write(write_st.ep, &outgoing, &done_write)) { + case GRPC_ENDPOINT_DONE: break; - case GRPC_ENDPOINT_WRITE_ERROR: + case GRPC_ENDPOINT_ERROR: gpr_log(GPR_ERROR, "error writing"); abort(); - case GRPC_ENDPOINT_WRITE_PENDING: + case GRPC_ENDPOINT_PENDING: grpc_endpoint_shutdown(write_st.ep); deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10); gpr_mu_lock(GRPC_POLLSET_MU(g_pollset)); @@ -368,6 +386,8 @@ static void shutdown_during_write_test(grpc_endpoint_test_config config, } gpr_mu_unlock(GRPC_POLLSET_MU(g_pollset)); gpr_free(slices); + gpr_slice_buffer_destroy(&read_st.incoming); + gpr_slice_buffer_destroy(&outgoing); end_test(config); return; } diff --git a/test/core/iomgr/tcp_posix_test.c b/test/core/iomgr/tcp_posix_test.c index 6ad832231f..8acaa433bb 100644 --- a/test/core/iomgr/tcp_posix_test.c +++ b/test/core/iomgr/tcp_posix_test.c @@ -118,10 +118,12 @@ struct read_socket_state { grpc_endpoint *ep; ssize_t read_bytes; ssize_t target_read_bytes; + gpr_slice_buffer incoming; + grpc_iomgr_closure read_cb; }; -static ssize_t count_and_unref_slices(gpr_slice *slices, size_t nslices, - int *current_data) { +static ssize_t count_slices(gpr_slice *slices, size_t nslices, + int *current_data) { ssize_t num_bytes = 0; unsigned i, j; unsigned char *buf; @@ -132,31 +134,41 @@ static ssize_t count_and_unref_slices(gpr_slice *slices, size_t nslices, *current_data = (*current_data + 1) % 256; } num_bytes += GPR_SLICE_LENGTH(slices[i]); - gpr_slice_unref(slices[i]); } return num_bytes; } -static void read_cb(void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { +static void read_cb(void *user_data, int success) { struct read_socket_state *state = (struct read_socket_state *)user_data; ssize_t read_bytes; int current_data; - GPR_ASSERT(error == GRPC_ENDPOINT_CB_OK); + GPR_ASSERT(success); gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); current_data = state->read_bytes % 256; - read_bytes = count_and_unref_slices(slices, nslices, ¤t_data); + read_bytes = count_slices(state->incoming.slices, state->incoming.count, + ¤t_data); state->read_bytes += read_bytes; gpr_log(GPR_INFO, "Read %d bytes of %d", read_bytes, state->target_read_bytes); if (state->read_bytes >= state->target_read_bytes) { - /* empty */ + gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); } else { - grpc_endpoint_notify_on_read(state->ep, read_cb, state); + switch (grpc_endpoint_read(state->ep, &state->incoming, &state->read_cb)) { + case GRPC_ENDPOINT_DONE: + gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); + read_cb(user_data, 1); + break; + case GRPC_ENDPOINT_ERROR: + gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); + read_cb(user_data, 0); + break; + case GRPC_ENDPOINT_PENDING: + gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); + break; + } } - gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); } /* Write to a socket, then read from it using the grpc_tcp API. */ @@ -181,8 +193,19 @@ static void read_test(ssize_t num_bytes, ssize_t slice_size) { state.ep = ep; state.read_bytes = 0; state.target_read_bytes = written_bytes; + gpr_slice_buffer_init(&state.incoming); + grpc_iomgr_closure_init(&state.read_cb, read_cb, &state); - grpc_endpoint_notify_on_read(ep, read_cb, &state); + switch (grpc_endpoint_read(ep, &state.incoming, &state.read_cb)) { + case GRPC_ENDPOINT_DONE: + read_cb(&state, 1); + break; + case GRPC_ENDPOINT_ERROR: + read_cb(&state, 0); + break; + case GRPC_ENDPOINT_PENDING: + break; + } gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); while (state.read_bytes < state.target_read_bytes) { @@ -193,6 +216,7 @@ static void read_test(ssize_t num_bytes, ssize_t slice_size) { GPR_ASSERT(state.read_bytes == state.target_read_bytes); gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); + gpr_slice_buffer_destroy(&state.incoming); grpc_endpoint_destroy(ep); } @@ -219,8 +243,19 @@ static void large_read_test(ssize_t slice_size) { state.ep = ep; state.read_bytes = 0; state.target_read_bytes = written_bytes; + gpr_slice_buffer_init(&state.incoming); + grpc_iomgr_closure_init(&state.read_cb, read_cb, &state); - grpc_endpoint_notify_on_read(ep, read_cb, &state); + switch (grpc_endpoint_read(ep, &state.incoming, &state.read_cb)) { + case GRPC_ENDPOINT_DONE: + read_cb(&state, 1); + break; + case GRPC_ENDPOINT_ERROR: + read_cb(&state, 0); + break; + case GRPC_ENDPOINT_PENDING: + break; + } gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); while (state.read_bytes < state.target_read_bytes) { @@ -231,6 +266,7 @@ static void large_read_test(ssize_t slice_size) { GPR_ASSERT(state.read_bytes == state.target_read_bytes); gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); + gpr_slice_buffer_destroy(&state.incoming); grpc_endpoint_destroy(ep); } @@ -262,8 +298,7 @@ static gpr_slice *allocate_blocks(ssize_t num_bytes, ssize_t slice_size, return slices; } -static void write_done(void *user_data /* write_socket_state */, - grpc_endpoint_cb_status error) { +static void write_done(void *user_data /* write_socket_state */, int success) { struct write_socket_state *state = (struct write_socket_state *)user_data; gpr_log(GPR_INFO, "Write done callback called"); gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); @@ -339,6 +374,8 @@ static void write_test(ssize_t num_bytes, ssize_t slice_size) { size_t num_blocks; gpr_slice *slices; int current_data = 0; + gpr_slice_buffer outgoing; + grpc_iomgr_closure write_done_closure; gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(20); gpr_log(GPR_INFO, "Start write test with %d bytes, slice size %d", num_bytes, @@ -355,74 +392,21 @@ static void write_test(ssize_t num_bytes, ssize_t slice_size) { slices = allocate_blocks(num_bytes, slice_size, &num_blocks, ¤t_data); - if (grpc_endpoint_write(ep, slices, num_blocks, write_done, &state) == - GRPC_ENDPOINT_WRITE_DONE) { - /* Write completed immediately */ - read_bytes = drain_socket(sv[0]); - GPR_ASSERT(read_bytes == num_bytes); - } else { - drain_socket_blocking(sv[0], num_bytes, num_bytes); - gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); - for (;;) { - grpc_pollset_worker worker; - if (state.write_done) { - break; - } - grpc_pollset_work(&g_pollset, &worker, gpr_now(GPR_CLOCK_MONOTONIC), - deadline); - } - gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); - } - - grpc_endpoint_destroy(ep); - gpr_free(slices); -} - -static void read_done_for_write_error(void *ud, gpr_slice *slices, - size_t nslices, - grpc_endpoint_cb_status error) { - GPR_ASSERT(error != GRPC_ENDPOINT_CB_OK); - GPR_ASSERT(nslices == 0); -} - -/* Write to a socket using the grpc_tcp API, then drain it directly. - Note that if the write does not complete immediately we need to drain the - socket in parallel with the read. */ -static void write_error_test(ssize_t num_bytes, ssize_t slice_size) { - int sv[2]; - grpc_endpoint *ep; - struct write_socket_state state; - size_t num_blocks; - gpr_slice *slices; - int current_data = 0; - grpc_pollset_worker worker; - gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(20); - - gpr_log(GPR_INFO, "Start write error test with %d bytes, slice size %d", - num_bytes, slice_size); - - create_sockets(sv); + gpr_slice_buffer_init(&outgoing); + gpr_slice_buffer_addn(&outgoing, slices, num_blocks); + grpc_iomgr_closure_init(&write_done_closure, write_done, &state); - ep = grpc_tcp_create(grpc_fd_create(sv[1], "write_error_test"), - GRPC_TCP_DEFAULT_READ_SLICE_SIZE, "test"); - grpc_endpoint_add_to_pollset(ep, &g_pollset); - - close(sv[0]); - - state.ep = ep; - state.write_done = 0; - - slices = allocate_blocks(num_bytes, slice_size, &num_blocks, ¤t_data); - - switch (grpc_endpoint_write(ep, slices, num_blocks, write_done, &state)) { - case GRPC_ENDPOINT_WRITE_DONE: - case GRPC_ENDPOINT_WRITE_ERROR: + switch (grpc_endpoint_write(ep, &outgoing, &write_done_closure)) { + case GRPC_ENDPOINT_DONE: /* Write completed immediately */ + read_bytes = drain_socket(sv[0]); + GPR_ASSERT(read_bytes == num_bytes); break; - case GRPC_ENDPOINT_WRITE_PENDING: - grpc_endpoint_notify_on_read(ep, read_done_for_write_error, NULL); + case GRPC_ENDPOINT_PENDING: + drain_socket_blocking(sv[0], num_bytes, num_bytes); gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); for (;;) { + grpc_pollset_worker worker; if (state.write_done) { break; } @@ -431,10 +415,14 @@ static void write_error_test(ssize_t num_bytes, ssize_t slice_size) { } gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); break; + case GRPC_ENDPOINT_ERROR: + gpr_log(GPR_ERROR, "endpoint got error"); + abort(); } + gpr_slice_buffer_destroy(&outgoing); grpc_endpoint_destroy(ep); - free(slices); + gpr_free(slices); } void run_tests(void) { @@ -454,10 +442,6 @@ void run_tests(void) { write_test(100000, 137); for (i = 1; i < 1000; i = GPR_MAX(i + 1, i * 5 / 4)) { - write_error_test(40320, i); - } - - for (i = 1; i < 1000; i = GPR_MAX(i + 1, i * 5 / 4)) { write_test(40320, i); } } diff --git a/test/core/security/secure_endpoint_test.c b/test/core/security/secure_endpoint_test.c index a8368fc842..c76ddcd194 100644 --- a/test/core/security/secure_endpoint_test.c +++ b/test/core/security/secure_endpoint_test.c @@ -135,62 +135,26 @@ static grpc_endpoint_test_config configs[] = { secure_endpoint_create_fixture_tcp_socketpair_leftover, clean_up}, }; -static void verify_leftover(void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { - gpr_slice s = - gpr_slice_from_copied_string("hello world 12345678900987654321"); - - GPR_ASSERT(error == GRPC_ENDPOINT_CB_OK); - GPR_ASSERT(nslices == 1); - - GPR_ASSERT(0 == gpr_slice_cmp(s, slices[0])); - gpr_slice_unref(slices[0]); - gpr_slice_unref(s); - *(int *)user_data = 1; -} - static void test_leftover(grpc_endpoint_test_config config, size_t slice_size) { grpc_endpoint_test_fixture f = config.create_fixture(slice_size); - int verified = 0; + gpr_slice_buffer incoming; + gpr_slice s = + gpr_slice_from_copied_string("hello world 12345678900987654321"); gpr_log(GPR_INFO, "Start test left over"); - grpc_endpoint_notify_on_read(f.client_ep, verify_leftover, &verified); - GPR_ASSERT(verified == 1); + gpr_slice_buffer_init(&incoming); + GPR_ASSERT(grpc_endpoint_read(f.client_ep, &incoming, NULL) == + GRPC_ENDPOINT_DONE); + GPR_ASSERT(incoming.count == 1); + GPR_ASSERT(0 == gpr_slice_cmp(s, incoming.slices[0])); grpc_endpoint_shutdown(f.client_ep); grpc_endpoint_shutdown(f.server_ep); grpc_endpoint_destroy(f.client_ep); grpc_endpoint_destroy(f.server_ep); - clean_up(); -} - -static void destroy_early(void *user_data, gpr_slice *slices, size_t nslices, - grpc_endpoint_cb_status error) { - grpc_endpoint_test_fixture *f = user_data; - gpr_slice s = - gpr_slice_from_copied_string("hello world 12345678900987654321"); - - GPR_ASSERT(error == GRPC_ENDPOINT_CB_OK); - GPR_ASSERT(nslices == 1); - - grpc_endpoint_shutdown(f->client_ep); - grpc_endpoint_destroy(f->client_ep); - - GPR_ASSERT(0 == gpr_slice_cmp(s, slices[0])); - gpr_slice_unref(slices[0]); gpr_slice_unref(s); -} + gpr_slice_buffer_destroy(&incoming); -/* test which destroys the ep before finishing reading */ -static void test_destroy_ep_early(grpc_endpoint_test_config config, - size_t slice_size) { - grpc_endpoint_test_fixture f = config.create_fixture(slice_size); - gpr_log(GPR_INFO, "Start test destroy early"); - - grpc_endpoint_notify_on_read(f.client_ep, destroy_early, &f); - - grpc_endpoint_shutdown(f.server_ep); - grpc_endpoint_destroy(f.server_ep); clean_up(); } @@ -203,7 +167,6 @@ int main(int argc, char **argv) { grpc_pollset_init(&g_pollset); grpc_endpoint_tests(configs[0], &g_pollset); test_leftover(configs[1], 1); - test_destroy_ep_early(configs[1], 1); grpc_pollset_shutdown(&g_pollset, destroy_pollset, &g_pollset); grpc_iomgr_shutdown(); diff --git a/test/core/util/port_posix.c b/test/core/util/port_posix.c index 836e62a541..4781d334e2 100644 --- a/test/core/util/port_posix.c +++ b/test/core/util/port_posix.c @@ -198,14 +198,13 @@ int grpc_pick_unused_port(void) { races with other processes on kernels that want to reuse the same port numbers over and over. */ - /* In alternating iterations we try UDP ports before TCP ports UDP + /* In alternating iterations we trial UDP ports before TCP ports UDP ports -- it could be the case that this machine has been using up UDP ports and they are scarcer. */ /* Type of port to first pick in next iteration */ int is_tcp = 1; - int try - = 0; + int trial = 0; char *env = gpr_getenv("GRPC_TEST_PORT_SERVER"); if (env) { @@ -218,11 +217,10 @@ int grpc_pick_unused_port(void) { for (;;) { int port; - try - ++; - if (try == 1) { + trial++; + if (trial == 1) { port = getpid() % (65536 - 30000) + 30000; - } else if (try <= NUM_RANDOM_PORTS_TO_PICK) { + } else if (trial <= NUM_RANDOM_PORTS_TO_PICK) { port = rand() % (65536 - 30000) + 30000; } else { port = 0; @@ -239,7 +237,7 @@ int grpc_pick_unused_port(void) { GPR_ASSERT(port > 0); /* Check that the port # is free for the other type of socket also */ if (!is_port_available(&port, !is_tcp)) { - /* In the next iteration try to bind to the other type first + /* In the next iteration trial to bind to the other type first because perhaps it is more rare. */ is_tcp = !is_tcp; continue; diff --git a/test/core/util/port_windows.c b/test/core/util/port_windows.c index 5b072f805a..2f64626cf3 100644 --- a/test/core/util/port_windows.c +++ b/test/core/util/port_windows.c @@ -35,7 +35,6 @@ #include "test/core/util/test_config.h" #if defined(GPR_WINSOCK_SOCKET) && defined(GRPC_TEST_PICK_PORT) -#include "src/core/iomgr/sockaddr_utils.h" #include "test/core/util/port.h" #include <process.h> @@ -43,8 +42,14 @@ #include <errno.h> #include <string.h> +#include <grpc/grpc.h> +#include <grpc/support/alloc.h> #include <grpc/support/log.h> +#include "src/core/support/env.h" +#include "src/core/httpcli/httpcli.h" +#include "src/core/iomgr/sockaddr_utils.h" + #define NUM_RANDOM_PORTS_TO_PICK 100 static int is_port_available(int *port, int is_tcp) { @@ -99,6 +104,67 @@ static int is_port_available(int *port, int is_tcp) { return 1; } +typedef struct portreq { + grpc_pollset pollset; + int port; +} portreq; + +static void got_port_from_server(void *arg, + const grpc_httpcli_response *response) { + size_t i; + int port = 0; + portreq *pr = arg; + GPR_ASSERT(response); + GPR_ASSERT(response->status == 200); + for (i = 0; i < response->body_length; i++) { + GPR_ASSERT(response->body[i] >= '0' && response->body[i] <= '9'); + port = port * 10 + response->body[i] - '0'; + } + GPR_ASSERT(port > 1024); + gpr_mu_lock(GRPC_POLLSET_MU(&pr->pollset)); + pr->port = port; + grpc_pollset_kick(&pr->pollset, NULL); + gpr_mu_unlock(GRPC_POLLSET_MU(&pr->pollset)); +} + +static void destroy_pollset_and_shutdown(void *p) { + grpc_pollset_destroy(p); + grpc_shutdown(); +} + +static int pick_port_using_server(char *server) { + grpc_httpcli_context context; + grpc_httpcli_request req; + portreq pr; + + grpc_init(); + + memset(&pr, 0, sizeof(pr)); + memset(&req, 0, sizeof(req)); + grpc_pollset_init(&pr.pollset); + pr.port = -1; + + req.host = server; + req.path = "/get"; + + grpc_httpcli_context_init(&context); + grpc_httpcli_get(&context, &pr.pollset, &req, + GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), got_port_from_server, + &pr); + gpr_mu_lock(GRPC_POLLSET_MU(&pr.pollset)); + while (pr.port == -1) { + grpc_pollset_worker worker; + grpc_pollset_work(&pr.pollset, &worker, gpr_now(GPR_CLOCK_MONOTONIC), + GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1)); + } + gpr_mu_unlock(GRPC_POLLSET_MU(&pr.pollset)); + + grpc_httpcli_context_destroy(&context); + grpc_pollset_shutdown(&pr.pollset, destroy_pollset_and_shutdown, &pr.pollset); + + return pr.port; +} + int grpc_pick_unused_port(void) { /* We repeatedly pick a port and then see whether or not it is available for use both as a TCP socket and a UDP socket. First, we @@ -108,22 +174,29 @@ int grpc_pick_unused_port(void) { races with other processes on kernels that want to reuse the same port numbers over and over. */ - /* In alternating iterations we try UDP ports before TCP ports UDP + /* In alternating iterations we trial UDP ports before TCP ports UDP ports -- it could be the case that this machine has been using up UDP ports and they are scarcer. */ /* Type of port to first pick in next iteration */ int is_tcp = 1; - int try - = 0; + int trial = 0; + + char *env = gpr_getenv("GRPC_TEST_PORT_SERVER"); + if (env) { + int port = pick_port_using_server(env); + gpr_free(env); + if (port != 0) { + return port; + } + } for (;;) { int port; - try - ++; - if (try == 1) { + trial++; + if (trial == 1) { port = _getpid() % (65536 - 30000) + 30000; - } else if (try <= NUM_RANDOM_PORTS_TO_PICK) { + } else if (trial <= NUM_RANDOM_PORTS_TO_PICK) { port = rand() % (65536 - 30000) + 30000; } else { port = 0; @@ -136,7 +209,7 @@ int grpc_pick_unused_port(void) { GPR_ASSERT(port > 0); /* Check that the port # is free for the other type of socket also */ if (!is_port_available(&port, !is_tcp)) { - /* In the next iteration try to bind to the other type first + /* In the next iteration trial to bind to the other type first because perhaps it is more rare. */ is_tcp = !is_tcp; continue; |