diff options
author | Craig Tiller <ctiller@google.com> | 2017-01-20 13:55:35 -0800 |
---|---|---|
committer | Craig Tiller <ctiller@google.com> | 2017-01-20 13:55:35 -0800 |
commit | ff1f160a264b92122e07b655ef1879693202b581 (patch) | |
tree | 3d0572dea8165af9eaae7581b9ba4e6305851136 /src/core/ext/client_channel | |
parent | a66243d38e986df75fc6d9c6420267bda587dc04 (diff) | |
parent | 28ec869b5a2567cd30a6e3bcc0efbee0ab0ae7f5 (diff) |
Merge github.com:grpc/grpc into bwest
Diffstat (limited to 'src/core/ext/client_channel')
-rw-r--r-- | src/core/ext/client_channel/client_channel.c | 29 | ||||
-rw-r--r-- | src/core/ext/client_channel/connector.h | 3 | ||||
-rw-r--r-- | src/core/ext/client_channel/resolver_registry.h | 4 | ||||
-rw-r--r-- | src/core/ext/client_channel/subchannel.c | 67 | ||||
-rw-r--r-- | src/core/ext/client_channel/subchannel.h | 15 | ||||
-rw-r--r-- | src/core/ext/client_channel/subchannel_index.c | 12 |
6 files changed, 82 insertions, 48 deletions
diff --git a/src/core/ext/client_channel/client_channel.c b/src/core/ext/client_channel/client_channel.c index 2f25fef9a7..74350d9fee 100644 --- a/src/core/ext/client_channel/client_channel.c +++ b/src/core/ext/client_channel/client_channel.c @@ -52,6 +52,7 @@ #include "src/core/lib/iomgr/iomgr.h" #include "src/core/lib/iomgr/polling_entity.h" #include "src/core/lib/profiling/timers.h" +#include "src/core/lib/slice/slice_internal.h" #include "src/core/lib/support/string.h" #include "src/core/lib/surface/channel.h" #include "src/core/lib/transport/connectivity_state.h" @@ -87,7 +88,7 @@ static void method_parameters_free(grpc_exec_ctx *exec_ctx, void *p) { gpr_free(p); } -static const grpc_mdstr_hash_table_vtable method_parameters_vtable = { +static const grpc_slice_hash_table_vtable method_parameters_vtable = { method_parameters_free, method_parameters_copy}; static void *method_parameters_create_from_json(const grpc_json *json) { @@ -165,7 +166,7 @@ typedef struct client_channel_channel_data { /** service config in JSON form */ char *service_config_json; /** maps method names to method_parameters structs */ - grpc_mdstr_hash_table *method_params_table; + grpc_slice_hash_table *method_params_table; /** incoming resolver result - set by resolver.next() */ grpc_channel_args *resolver_result; /** a list of closures that are all waiting for config to come in */ @@ -267,7 +268,7 @@ static void on_resolver_result_changed(grpc_exec_ctx *exec_ctx, void *arg, char *lb_policy_name = NULL; grpc_lb_policy *lb_policy = NULL; grpc_lb_policy *old_lb_policy; - grpc_mdstr_hash_table *method_params_table = NULL; + grpc_slice_hash_table *method_params_table = NULL; grpc_connectivity_state state = GRPC_CHANNEL_TRANSIENT_FAILURE; bool exit_idle = false; grpc_error *state_error = GRPC_ERROR_CREATE("No load balancing policy"); @@ -362,7 +363,7 @@ static void on_resolver_result_changed(grpc_exec_ctx *exec_ctx, void *arg, chand->service_config_json = service_config_json; } if (chand->method_params_table != NULL) { - grpc_mdstr_hash_table_unref(exec_ctx, chand->method_params_table); + grpc_slice_hash_table_unref(exec_ctx, chand->method_params_table); } chand->method_params_table = method_params_table; if (lb_policy != NULL) { @@ -558,7 +559,7 @@ static void cc_destroy_channel_elem(grpc_exec_ctx *exec_ctx, gpr_free(chand->lb_policy_name); gpr_free(chand->service_config_json); if (chand->method_params_table != NULL) { - grpc_mdstr_hash_table_unref(exec_ctx, chand->method_params_table); + grpc_slice_hash_table_unref(exec_ctx, chand->method_params_table); } grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker); grpc_pollset_set_destroy(chand->interested_parties); @@ -593,7 +594,7 @@ typedef struct client_channel_call_data { // to avoid this without breaking the grpc_deadline_state abstraction. grpc_deadline_state deadline_state; - grpc_mdstr *path; // Request path. + grpc_slice path; // Request path. gpr_timespec call_start_time; gpr_timespec deadline; wait_for_ready_value wait_for_ready_from_service_config; @@ -997,10 +998,10 @@ static void read_service_config(grpc_exec_ctx *exec_ctx, void *arg, if (error == GRPC_ERROR_NONE) { // Get the method config table from channel data. gpr_mu_lock(&chand->mu); - grpc_mdstr_hash_table *method_params_table = NULL; + grpc_slice_hash_table *method_params_table = NULL; if (chand->method_params_table != NULL) { method_params_table = - grpc_mdstr_hash_table_ref(chand->method_params_table); + grpc_slice_hash_table_ref(chand->method_params_table); } gpr_mu_unlock(&chand->mu); // If the method config table was present, use it. @@ -1029,7 +1030,7 @@ static void read_service_config(grpc_exec_ctx *exec_ctx, void *arg, gpr_mu_unlock(&calld->mu); } } - grpc_mdstr_hash_table_unref(exec_ctx, method_params_table); + grpc_slice_hash_table_unref(exec_ctx, method_params_table); } } GRPC_CALL_STACK_UNREF(exec_ctx, calld->owning_call, "read_service_config"); @@ -1043,7 +1044,7 @@ static grpc_error *cc_init_call_elem(grpc_exec_ctx *exec_ctx, call_data *calld = elem->call_data; // Initialize data members. grpc_deadline_state_init(exec_ctx, elem, args->call_stack); - calld->path = GRPC_MDSTR_REF(args->path); + calld->path = grpc_slice_ref_internal(args->path); calld->call_start_time = args->start_time; calld->deadline = gpr_convert_clock_type(args->deadline, GPR_CLOCK_MONOTONIC); calld->wait_for_ready_from_service_config = WAIT_FOR_READY_UNSET; @@ -1067,8 +1068,8 @@ static grpc_error *cc_init_call_elem(grpc_exec_ctx *exec_ctx, if (chand->lb_policy != NULL) { // We already have a resolver result, so check for service config. if (chand->method_params_table != NULL) { - grpc_mdstr_hash_table *method_params_table = - grpc_mdstr_hash_table_ref(chand->method_params_table); + grpc_slice_hash_table *method_params_table = + grpc_slice_hash_table_ref(chand->method_params_table); gpr_mu_unlock(&chand->mu); method_parameters *method_params = grpc_method_config_table_get( exec_ctx, method_params_table, args->path); @@ -1084,7 +1085,7 @@ static grpc_error *cc_init_call_elem(grpc_exec_ctx *exec_ctx, method_params->wait_for_ready; } } - grpc_mdstr_hash_table_unref(exec_ctx, method_params_table); + grpc_slice_hash_table_unref(exec_ctx, method_params_table); } else { gpr_mu_unlock(&chand->mu); } @@ -1113,7 +1114,7 @@ static void cc_destroy_call_elem(grpc_exec_ctx *exec_ctx, void *and_free_memory) { call_data *calld = elem->call_data; grpc_deadline_state_destroy(exec_ctx, elem); - GRPC_MDSTR_UNREF(exec_ctx, calld->path); + grpc_slice_unref_internal(exec_ctx, calld->path); GRPC_ERROR_UNREF(calld->cancel_error); grpc_subchannel_call *call = GET_CALL(calld); if (call != NULL && call != CANCELLED_CALL) { diff --git a/src/core/ext/client_channel/connector.h b/src/core/ext/client_channel/connector.h index 3de061620e..395f89b3b2 100644 --- a/src/core/ext/client_channel/connector.h +++ b/src/core/ext/client_channel/connector.h @@ -48,9 +48,6 @@ struct grpc_connector { typedef struct { /** set of pollsets interested in this connection */ grpc_pollset_set *interested_parties; - /** address to connect to */ - const grpc_resolved_address *addr; - size_t addr_len; /** initial connect string to send */ grpc_slice initial_connect_string; /** deadline for connection */ diff --git a/src/core/ext/client_channel/resolver_registry.h b/src/core/ext/client_channel/resolver_registry.h index 4fb16131db..a4606463eb 100644 --- a/src/core/ext/client_channel/resolver_registry.h +++ b/src/core/ext/client_channel/resolver_registry.h @@ -60,7 +60,9 @@ void grpc_register_resolver_type(grpc_resolver_factory *factory); return it. If a resolver factory was not found, return NULL. \a args is a set of channel arguments to be included in the result - (typically the set of arguments passed in from the client API). */ + (typically the set of arguments passed in from the client API). + \a pollset_set is used to drive IO in the name resolution process, it + should not be NULL. */ grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target, const grpc_channel_args *args, grpc_pollset_set *pollset_set); diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/client_channel/subchannel.c index 1bac82b451..b7379b30b3 100644 --- a/src/core/ext/client_channel/subchannel.c +++ b/src/core/ext/client_channel/subchannel.c @@ -38,12 +38,16 @@ #include <grpc/support/alloc.h> #include <grpc/support/avl.h> +#include <grpc/support/string_util.h> #include "src/core/ext/client_channel/client_channel.h" #include "src/core/ext/client_channel/initial_connect_string.h" +#include "src/core/ext/client_channel/parse_address.h" #include "src/core/ext/client_channel/subchannel_index.h" +#include "src/core/ext/client_channel/uri_parser.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/channel/connected_channel.h" +#include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/iomgr/timer.h" #include "src/core/lib/profiling/timers.h" #include "src/core/lib/slice/slice_internal.h" @@ -95,8 +99,6 @@ struct grpc_subchannel { size_t num_filters; /** channel arguments */ grpc_channel_args *args; - /** address to connect to */ - grpc_resolved_address *addr; grpc_subchannel_key *key; @@ -211,7 +213,6 @@ static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg, grpc_subchannel *c = arg; gpr_free((void *)c->filters); grpc_channel_args_destroy(exec_ctx, c->args); - gpr_free(c->addr); grpc_slice_unref_internal(exec_ctx, c->initial_connect_string); grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker); grpc_connector_unref(exec_ctx, c->connector); @@ -327,12 +328,17 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, } else { c->filters = NULL; } - c->addr = gpr_malloc(sizeof(grpc_resolved_address)); - if (args->addr->len) - memcpy(c->addr, args->addr, sizeof(grpc_resolved_address)); c->pollset_set = grpc_pollset_set_create(); - grpc_set_initial_connect_string(&c->addr, &c->initial_connect_string); - c->args = grpc_channel_args_copy(args->args); + grpc_resolved_address *addr = gpr_malloc(sizeof(*addr)); + grpc_get_subchannel_address_arg(args->args, addr); + grpc_set_initial_connect_string(&addr, &c->initial_connect_string); + static const char *keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS}; + grpc_arg new_arg = grpc_create_subchannel_address_arg(addr); + gpr_free(addr); + c->args = grpc_channel_args_copy_and_add_and_remove( + args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &new_arg, 1); + gpr_free(new_arg.value.string); + c->root_external_state_watcher.next = c->root_external_state_watcher.prev = &c->root_external_state_watcher; grpc_closure_init(&c->connected, subchannel_connected, c, @@ -385,7 +391,6 @@ static void continue_connect_locked(grpc_exec_ctx *exec_ctx, grpc_connect_in_args args; args.interested_parties = c->pollset_set; - args.addr = c->addr; args.deadline = c->next_attempt; args.channel_args = c->args; args.initial_connect_string = c->initial_connect_string; @@ -620,9 +625,8 @@ static void publish_transport_locked(grpc_exec_ctx *exec_ctx, grpc_error *error = grpc_channel_stack_builder_finish( exec_ctx, builder, 0, 1, connection_destroy, NULL, (void **)&con); if (error != GRPC_ERROR_NONE) { - const char *msg = grpc_error_string(error); - gpr_log(GPR_ERROR, "error initializing subchannel stack: %s", msg); - grpc_error_free_string(msg); + gpr_log(GPR_ERROR, "error initializing subchannel stack: %s", + grpc_error_string(error)); GRPC_ERROR_UNREF(error); abort(); /* TODO(ctiller): what to do here? */ } @@ -687,7 +691,6 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, const char *errmsg = grpc_error_string(error); gpr_log(GPR_INFO, "Connect failed: %s", errmsg); - grpc_error_free_string(errmsg); maybe_start_connecting_locked(exec_ctx, c); GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); @@ -746,7 +749,7 @@ grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel( grpc_error *grpc_connected_subchannel_create_call( grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, - grpc_polling_entity *pollent, grpc_mdstr *path, gpr_timespec start_time, + grpc_polling_entity *pollent, grpc_slice path, gpr_timespec start_time, gpr_timespec deadline, grpc_subchannel_call **call) { grpc_channel_stack *chanstk = CHANNEL_STACK_FROM_CONNECTION(con); *call = gpr_malloc(sizeof(grpc_subchannel_call) + chanstk->call_stack_size); @@ -758,7 +761,7 @@ grpc_error *grpc_connected_subchannel_create_call( if (error != GRPC_ERROR_NONE) { const char *error_string = grpc_error_string(error); gpr_log(GPR_ERROR, "error: %s", error_string); - grpc_error_free_string(error_string); + gpr_free(*call); return error; } @@ -771,3 +774,37 @@ grpc_call_stack *grpc_subchannel_call_get_call_stack( grpc_subchannel_call *subchannel_call) { return SUBCHANNEL_CALL_TO_CALL_STACK(subchannel_call); } + +static void grpc_uri_to_sockaddr(char *uri_str, grpc_resolved_address *addr) { + grpc_uri *uri = grpc_uri_parse(uri_str, 0 /* suppress_errors */); + GPR_ASSERT(uri != NULL); + if (strcmp(uri->scheme, "ipv4") == 0) { + GPR_ASSERT(parse_ipv4(uri, addr)); + } else if (strcmp(uri->scheme, "ipv6") == 0) { + GPR_ASSERT(parse_ipv6(uri, addr)); + } else { + GPR_ASSERT(parse_unix(uri, addr)); + } + grpc_uri_destroy(uri); +} + +void grpc_get_subchannel_address_arg(const grpc_channel_args *args, + grpc_resolved_address *addr) { + const grpc_arg *addr_arg = + grpc_channel_args_find(args, GRPC_ARG_SUBCHANNEL_ADDRESS); + GPR_ASSERT(addr_arg != NULL); // Should have been set by LB policy. + GPR_ASSERT(addr_arg->type == GRPC_ARG_STRING); + memset(addr, 0, sizeof(*addr)); + if (*addr_arg->value.string != '\0') { + grpc_uri_to_sockaddr(addr_arg->value.string, addr); + } +} + +grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr) { + grpc_arg new_arg; + new_arg.key = GRPC_ARG_SUBCHANNEL_ADDRESS; + new_arg.type = GRPC_ARG_STRING; + new_arg.value.string = + addr->len > 0 ? grpc_sockaddr_to_uri(addr) : gpr_strdup(""); + return new_arg; +} diff --git a/src/core/ext/client_channel/subchannel.h b/src/core/ext/client_channel/subchannel.h index 24aa9f73dc..9bd35a7704 100644 --- a/src/core/ext/client_channel/subchannel.h +++ b/src/core/ext/client_channel/subchannel.h @@ -40,6 +40,9 @@ #include "src/core/lib/transport/connectivity_state.h" #include "src/core/lib/transport/metadata.h" +// Channel arg containing a grpc_resolved_address to connect to. +#define GRPC_ARG_SUBCHANNEL_ADDRESS "grpc.subchannel_address" + /** A (sub-)channel that knows how to connect to exactly one target address. Provides a target for load balancing. */ typedef struct grpc_subchannel grpc_subchannel; @@ -111,7 +114,7 @@ void grpc_subchannel_call_unref(grpc_exec_ctx *exec_ctx, /** construct a subchannel call */ grpc_error *grpc_connected_subchannel_create_call( grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *connected_subchannel, - grpc_polling_entity *pollent, grpc_mdstr *path, gpr_timespec start_time, + grpc_polling_entity *pollent, grpc_slice path, gpr_timespec start_time, gpr_timespec deadline, grpc_subchannel_call **subchannel_call); /** process a transport level op */ @@ -164,8 +167,6 @@ struct grpc_subchannel_args { size_t filter_count; /** Channel arguments to be supplied to the newly created channel */ const grpc_channel_args *args; - /** Address to connect to */ - grpc_resolved_address *addr; }; /** create a subchannel given a connector */ @@ -173,4 +174,12 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, grpc_connector *connector, const grpc_subchannel_args *args); +/// Sets \a addr from \a args. +void grpc_get_subchannel_address_arg(const grpc_channel_args *args, + grpc_resolved_address *addr); + +/// Returns a new channel arg encoding the subchannel address as a string. +/// Caller is responsible for freeing the string. +grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr); + #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H */ diff --git a/src/core/ext/client_channel/subchannel_index.c b/src/core/ext/client_channel/subchannel_index.c index 1ebe03ef11..11889300a2 100644 --- a/src/core/ext/client_channel/subchannel_index.c +++ b/src/core/ext/client_channel/subchannel_index.c @@ -86,11 +86,6 @@ static grpc_subchannel_key *create_key( } else { k->args.filters = NULL; } - k->args.addr = gpr_malloc(sizeof(grpc_resolved_address)); - k->args.addr->len = args->addr->len; - if (k->args.addr->len > 0) { - memcpy(k->args.addr, args->addr, sizeof(grpc_resolved_address)); - } k->args.args = copy_channel_args(args->args); return k; } @@ -108,14 +103,8 @@ static int subchannel_key_compare(grpc_subchannel_key *a, grpc_subchannel_key *b) { int c = GPR_ICMP(a->connector, b->connector); if (c != 0) return c; - c = GPR_ICMP(a->args.addr->len, b->args.addr->len); - if (c != 0) return c; c = GPR_ICMP(a->args.filter_count, b->args.filter_count); if (c != 0) return c; - if (a->args.addr->len) { - c = memcmp(a->args.addr->addr, b->args.addr->addr, a->args.addr->len); - if (c != 0) return c; - } if (a->args.filter_count > 0) { c = memcmp(a->args.filters, b->args.filters, a->args.filter_count * sizeof(*a->args.filters)); @@ -129,7 +118,6 @@ void grpc_subchannel_key_destroy(grpc_exec_ctx *exec_ctx, grpc_connector_unref(exec_ctx, k->connector); gpr_free((grpc_channel_args *)k->args.filters); grpc_channel_args_destroy(exec_ctx, (grpc_channel_args *)k->args.args); - gpr_free(k->args.addr); gpr_free(k); } |