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Diffstat (limited to 'test/core/end2end/fixtures/proxy.c')
-rw-r--r-- | test/core/end2end/fixtures/proxy.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/test/core/end2end/fixtures/proxy.c b/test/core/end2end/fixtures/proxy.c new file mode 100644 index 0000000000..e4f6263334 --- /dev/null +++ b/test/core/end2end/fixtures/proxy.c @@ -0,0 +1,430 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "test/core/end2end/fixtures/proxy.h" + +#include <string.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/host_port.h> +#include <grpc/support/log.h> +#include <grpc/support/sync.h> +#include <grpc/support/thd.h> +#include <grpc/support/useful.h> + +#include "test/core/util/port.h" + +struct grpc_end2end_proxy { + gpr_thd_id thd; + char *proxy_port; + char *server_port; + grpc_completion_queue *cq; + grpc_server *server; + grpc_channel *client; + + int shutdown; + + /* requested call */ + grpc_call *new_call; + grpc_call_details new_call_details; + grpc_metadata_array new_call_metadata; +}; + +typedef struct { + void (*func)(void *arg, int success); + void *arg; +} closure; + +typedef struct { + gpr_refcount refs; + grpc_end2end_proxy *proxy; + + grpc_call *c2p; + grpc_call *p2s; + + grpc_metadata_array c2p_initial_metadata; + grpc_metadata_array p2s_initial_metadata; + + grpc_byte_buffer *c2p_msg; + grpc_byte_buffer *p2s_msg; + + grpc_metadata_array p2s_trailing_metadata; + grpc_status_code p2s_status; + char *p2s_status_details; + size_t p2s_status_details_capacity; + + int c2p_server_cancelled; +} proxy_call; + +static void thread_main(void *arg); +static void request_call(grpc_end2end_proxy *proxy); + +grpc_end2end_proxy *grpc_end2end_proxy_create( + const grpc_end2end_proxy_def *def) { + gpr_thd_options opt = gpr_thd_options_default(); + int proxy_port = grpc_pick_unused_port_or_die(); + int server_port = grpc_pick_unused_port_or_die(); + + grpc_end2end_proxy *proxy = gpr_malloc(sizeof(*proxy)); + memset(proxy, 0, sizeof(*proxy)); + + gpr_join_host_port(&proxy->proxy_port, "localhost", proxy_port); + gpr_join_host_port(&proxy->server_port, "localhost", server_port); + proxy->cq = grpc_completion_queue_create(); + proxy->server = def->create_server(proxy->proxy_port); + proxy->client = def->create_client(proxy->server_port); + + grpc_server_register_completion_queue(proxy->server, proxy->cq); + grpc_server_start(proxy->server); + + gpr_thd_options_set_joinable(&opt); + GPR_ASSERT(gpr_thd_new(&proxy->thd, thread_main, proxy, &opt)); + + request_call(proxy); + + return proxy; +} + +static closure *new_closure(void (*func)(void *arg, int success), void *arg) { + closure *cl = gpr_malloc(sizeof(*cl)); + cl->func = func; + cl->arg = arg; + return cl; +} + +static void shutdown_complete(void *arg, int success) { + grpc_end2end_proxy *proxy = arg; + proxy->shutdown = 1; + grpc_completion_queue_shutdown(proxy->cq); +} + +void grpc_end2end_proxy_destroy(grpc_end2end_proxy *proxy) { + grpc_server_shutdown_and_notify(proxy->server, proxy->cq, + new_closure(shutdown_complete, proxy)); + gpr_thd_join(proxy->thd); + gpr_free(proxy->proxy_port); + gpr_free(proxy->server_port); + grpc_server_destroy(proxy->server); + grpc_channel_destroy(proxy->client); + grpc_completion_queue_destroy(proxy->cq); + grpc_call_details_destroy(&proxy->new_call_details); + gpr_free(proxy); +} + +static void unrefpc(proxy_call *pc, const char *reason) { + gpr_log(GPR_DEBUG, "unref %p: %s %d -> %d", pc, reason, pc->refs.count, + pc->refs.count - 1); + if (gpr_unref(&pc->refs)) { + grpc_call_destroy(pc->c2p); + grpc_call_destroy(pc->p2s); + grpc_metadata_array_destroy(&pc->c2p_initial_metadata); + grpc_metadata_array_destroy(&pc->p2s_initial_metadata); + grpc_metadata_array_destroy(&pc->p2s_trailing_metadata); + gpr_free(pc->p2s_status_details); + gpr_free(pc); + } +} + +static void refpc(proxy_call *pc, const char *reason) { + gpr_log(GPR_DEBUG, "ref %p: %s %d -> %d", pc, reason, pc->refs.count, + pc->refs.count + 1); + gpr_ref(&pc->refs); +} + +static void on_c2p_sent_initial_metadata(void *arg, int success) { + proxy_call *pc = arg; + unrefpc(pc, "on_c2p_sent_initial_metadata"); +} + +static void on_p2s_recv_initial_metadata(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + if (!pc->proxy->shutdown) { + op.op = GRPC_OP_SEND_INITIAL_METADATA; + op.flags = 0; + op.data.send_initial_metadata.count = pc->p2s_initial_metadata.count; + op.data.send_initial_metadata.metadata = pc->p2s_initial_metadata.metadata; + refpc(pc, "on_c2p_sent_initial_metadata"); + err = grpc_call_start_batch(pc->c2p, &op, 1, + new_closure(on_c2p_sent_initial_metadata, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + + unrefpc(pc, "on_p2s_recv_initial_metadata"); +} + +static void on_p2s_sent_initial_metadata(void *arg, int success) { + proxy_call *pc = arg; + unrefpc(pc, "on_p2s_sent_initial_metadata"); +} + +static void on_c2p_recv_msg(void *arg, int success); + +static void on_p2s_sent_message(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + grpc_byte_buffer_destroy(pc->c2p_msg); + if (!pc->proxy->shutdown && success) { + op.op = GRPC_OP_RECV_MESSAGE; + op.flags = 0; + op.data.recv_message = &pc->c2p_msg; + refpc(pc, "on_c2p_recv_msg"); + err = grpc_call_start_batch(pc->c2p, &op, 1, + new_closure(on_c2p_recv_msg, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + + unrefpc(pc, "on_p2s_sent_message"); +} + +static void on_p2s_sent_close(void *arg, int success) { + proxy_call *pc = arg; + unrefpc(pc, "on_p2s_sent_close"); +} + +static void on_c2p_recv_msg(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + if (!pc->proxy->shutdown && success) { + if (pc->c2p_msg != NULL) { + op.op = GRPC_OP_SEND_MESSAGE; + op.flags = 0; + op.data.send_message = pc->c2p_msg; + refpc(pc, "on_p2s_sent_message"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_sent_message, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } else { + op.op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; + op.flags = 0; + refpc(pc, "on_p2s_sent_close"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_sent_close, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + } + + unrefpc(pc, "on_c2p_recv_msg"); +} + +static void on_p2s_recv_msg(void *arg, int success); + +static void on_c2p_sent_message(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + grpc_byte_buffer_destroy(pc->p2s_msg); + if (!pc->proxy->shutdown && success) { + op.op = GRPC_OP_RECV_MESSAGE; + op.flags = 0; + op.data.recv_message = &pc->p2s_msg; + refpc(pc, "on_p2s_recv_msg"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_recv_msg, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + + unrefpc(pc, "on_c2p_sent_message"); +} + +static void on_p2s_recv_msg(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + if (!pc->proxy->shutdown && success && pc->p2s_msg) { + op.op = GRPC_OP_SEND_MESSAGE; + op.flags = 0; + op.data.send_message = pc->p2s_msg; + refpc(pc, "on_c2p_sent_message"); + err = grpc_call_start_batch(pc->c2p, &op, 1, + new_closure(on_c2p_sent_message, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + unrefpc(pc, "on_p2s_recv_msg"); +} + +static void on_c2p_sent_status(void *arg, int success) { + proxy_call *pc = arg; + unrefpc(pc, "on_c2p_sent_status"); +} + +static void on_p2s_status(void *arg, int success) { + proxy_call *pc = arg; + grpc_op op; + grpc_call_error err; + + if (!pc->proxy->shutdown) { + GPR_ASSERT(success); + op.op = GRPC_OP_SEND_STATUS_FROM_SERVER; + op.flags = 0; + op.data.send_status_from_server.trailing_metadata_count = + pc->p2s_trailing_metadata.count; + op.data.send_status_from_server.trailing_metadata = + pc->p2s_trailing_metadata.metadata; + op.data.send_status_from_server.status = pc->p2s_status; + op.data.send_status_from_server.status_details = pc->p2s_status_details; + refpc(pc, "on_c2p_sent_status"); + err = grpc_call_start_batch(pc->c2p, &op, 1, + new_closure(on_c2p_sent_status, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + } + + unrefpc(pc, "on_p2s_status"); +} + +static void on_c2p_closed(void *arg, int success) { + proxy_call *pc = arg; + unrefpc(pc, "on_c2p_closed"); +} + +static void on_new_call(void *arg, int success) { + grpc_end2end_proxy *proxy = arg; + grpc_call_error err; + + if (success) { + grpc_op op; + proxy_call *pc = gpr_malloc(sizeof(*pc)); + memset(pc, 0, sizeof(*pc)); + pc->proxy = proxy; + GPR_SWAP(grpc_metadata_array, pc->c2p_initial_metadata, + proxy->new_call_metadata); + pc->c2p = proxy->new_call; + pc->p2s = grpc_channel_create_call( + proxy->client, pc->c2p, GRPC_PROPAGATE_DEFAULTS, proxy->cq, + proxy->new_call_details.method, proxy->new_call_details.host, + proxy->new_call_details.deadline); + gpr_ref_init(&pc->refs, 1); + + op.flags = 0; + + op.op = GRPC_OP_RECV_INITIAL_METADATA; + op.data.recv_initial_metadata = &pc->p2s_initial_metadata; + refpc(pc, "on_p2s_recv_initial_metadata"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_recv_initial_metadata, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + op.op = GRPC_OP_SEND_INITIAL_METADATA; + op.data.send_initial_metadata.count = pc->c2p_initial_metadata.count; + op.data.send_initial_metadata.metadata = pc->c2p_initial_metadata.metadata; + refpc(pc, "on_p2s_sent_initial_metadata"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_sent_initial_metadata, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + op.op = GRPC_OP_RECV_MESSAGE; + op.data.recv_message = &pc->c2p_msg; + refpc(pc, "on_c2p_recv_msg"); + err = grpc_call_start_batch(pc->c2p, &op, 1, + new_closure(on_c2p_recv_msg, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + op.op = GRPC_OP_RECV_MESSAGE; + op.data.recv_message = &pc->p2s_msg; + refpc(pc, "on_p2s_recv_msg"); + err = grpc_call_start_batch(pc->p2s, &op, 1, + new_closure(on_p2s_recv_msg, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + op.op = GRPC_OP_RECV_STATUS_ON_CLIENT; + op.data.recv_status_on_client.trailing_metadata = + &pc->p2s_trailing_metadata; + op.data.recv_status_on_client.status = &pc->p2s_status; + op.data.recv_status_on_client.status_details = &pc->p2s_status_details; + op.data.recv_status_on_client.status_details_capacity = + &pc->p2s_status_details_capacity; + refpc(pc, "on_p2s_status"); + err = + grpc_call_start_batch(pc->p2s, &op, 1, new_closure(on_p2s_status, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + op.op = GRPC_OP_RECV_CLOSE_ON_SERVER; + op.data.recv_close_on_server.cancelled = &pc->c2p_server_cancelled; + refpc(pc, "on_c2p_closed"); + err = + grpc_call_start_batch(pc->c2p, &op, 1, new_closure(on_c2p_closed, pc)); + GPR_ASSERT(err == GRPC_CALL_OK); + + request_call(proxy); + + unrefpc(pc, "init"); + } else { + GPR_ASSERT(proxy->new_call == NULL); + } +} + +static void request_call(grpc_end2end_proxy *proxy) { + proxy->new_call = NULL; + GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call( + proxy->server, &proxy->new_call, + &proxy->new_call_details, + &proxy->new_call_metadata, proxy->cq, + proxy->cq, new_closure(on_new_call, proxy))); +} + +static void thread_main(void *arg) { + grpc_end2end_proxy *proxy = arg; + closure *cl; + for (;;) { + grpc_event ev = grpc_completion_queue_next( + proxy->cq, gpr_inf_future(GPR_CLOCK_MONOTONIC)); + switch (ev.type) { + case GRPC_QUEUE_TIMEOUT: + gpr_log(GPR_ERROR, "Should never reach here"); + abort(); + case GRPC_QUEUE_SHUTDOWN: + return; + case GRPC_OP_COMPLETE: + cl = ev.tag; + cl->func(cl->arg, ev.success); + gpr_free(cl); + break; + } + } +} + +const char *grpc_end2end_proxy_get_client_target(grpc_end2end_proxy *proxy) { + return proxy->proxy_port; +} + +const char *grpc_end2end_proxy_get_server_port(grpc_end2end_proxy *proxy) { + return proxy->server_port; +} |