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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "src/core/lib/iomgr/port.h"
// This test won't work except with libuv
#ifdef GRPC_UV
#include <uv.h>
#include <string.h>
#include "src/core/lib/iomgr/tcp_client.h"
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/time.h>
#include "src/core/lib/iomgr/iomgr.h"
#include "src/core/lib/iomgr/pollset.h"
#include "src/core/lib/iomgr/timer.h"
#include "test/core/util/test_config.h"
static gpr_mu* g_mu;
static grpc_pollset* g_pollset;
static int g_connections_complete = 0;
static grpc_endpoint* g_connecting = NULL;
static grpc_millis test_deadline(void) {
return grpc_timespec_to_millis_round_up(grpc_timeout_seconds_to_deadline(10));
}
static void finish_connection(grpc_exec_ctx* exec_ctx) {
gpr_mu_lock(g_mu);
g_connections_complete++;
GPR_ASSERT(GRPC_LOG_IF_ERROR("pollset_kick",
grpc_pollset_kick(exec_ctx, g_pollset, NULL)));
gpr_mu_unlock(g_mu);
}
static void must_succeed(grpc_exec_ctx* exec_ctx, void* arg,
grpc_error* error) {
GPR_ASSERT(g_connecting != NULL);
GPR_ASSERT(error == GRPC_ERROR_NONE);
grpc_endpoint_shutdown(
exec_ctx, g_connecting,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("must_succeed called"));
grpc_endpoint_destroy(exec_ctx, g_connecting);
g_connecting = NULL;
finish_connection(exec_ctx);
}
static void must_fail(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {
GPR_ASSERT(g_connecting == NULL);
GPR_ASSERT(error != GRPC_ERROR_NONE);
finish_connection(exec_ctx);
}
static void close_cb(uv_handle_t* handle) { gpr_free(handle); }
static void connection_cb(uv_stream_t* server, int status) {
uv_tcp_t* client_handle = gpr_malloc(sizeof(uv_tcp_t));
GPR_ASSERT(0 == status);
GPR_ASSERT(0 == uv_tcp_init(uv_default_loop(), client_handle));
GPR_ASSERT(0 == uv_accept(server, (uv_stream_t*)client_handle));
uv_close((uv_handle_t*)client_handle, close_cb);
}
void test_succeeds(void) {
grpc_resolved_address resolved_addr;
struct sockaddr_in* addr = (struct sockaddr_in*)resolved_addr.addr;
uv_tcp_t* svr_handle = gpr_malloc(sizeof(uv_tcp_t));
int connections_complete_before;
grpc_closure done;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_DEBUG, "test_succeeds");
memset(&resolved_addr, 0, sizeof(resolved_addr));
resolved_addr.len = sizeof(struct sockaddr_in);
addr->sin_family = AF_INET;
/* create a dummy server */
GPR_ASSERT(0 == uv_tcp_init(uv_default_loop(), svr_handle));
GPR_ASSERT(0 == uv_tcp_bind(svr_handle, (struct sockaddr*)addr, 0));
GPR_ASSERT(0 == uv_listen((uv_stream_t*)svr_handle, 1, connection_cb));
gpr_mu_lock(g_mu);
connections_complete_before = g_connections_complete;
gpr_mu_unlock(g_mu);
/* connect to it */
GPR_ASSERT(uv_tcp_getsockname(svr_handle, (struct sockaddr*)addr,
(int*)&resolved_addr.len) == 0);
GRPC_CLOSURE_INIT(&done, must_succeed, NULL, grpc_schedule_on_exec_ctx);
grpc_tcp_client_connect(&exec_ctx, &done, &g_connecting, NULL, NULL,
&resolved_addr, GRPC_MILLIS_INF_FUTURE);
gpr_mu_lock(g_mu);
while (g_connections_complete == connections_complete_before) {
grpc_pollset_worker* worker = NULL;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, g_pollset, &worker,
grpc_timespec_to_millis_round_up(
grpc_timeout_seconds_to_deadline(5)))));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
}
// This will get cleaned up when the pollset runs again or gets shutdown
uv_close((uv_handle_t*)svr_handle, close_cb);
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
}
void test_fails(void) {
grpc_resolved_address resolved_addr;
struct sockaddr_in* addr = (struct sockaddr_in*)resolved_addr.addr;
int connections_complete_before;
grpc_closure done;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_DEBUG, "test_fails");
memset(&resolved_addr, 0, sizeof(resolved_addr));
resolved_addr.len = sizeof(struct sockaddr_in);
addr->sin_family = AF_INET;
gpr_mu_lock(g_mu);
connections_complete_before = g_connections_complete;
gpr_mu_unlock(g_mu);
/* connect to a broken address */
GRPC_CLOSURE_INIT(&done, must_fail, NULL, grpc_schedule_on_exec_ctx);
grpc_tcp_client_connect(&exec_ctx, &done, &g_connecting, NULL, NULL,
&resolved_addr, GRPC_MILLIS_INF_FUTURE);
gpr_mu_lock(g_mu);
/* wait for the connection callback to finish */
while (g_connections_complete == connections_complete_before) {
grpc_pollset_worker* worker = NULL;
gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
grpc_millis polling_deadline = test_deadline();
switch (grpc_timer_check(&exec_ctx, &polling_deadline)) {
case GRPC_TIMERS_FIRED:
break;
case GRPC_TIMERS_NOT_CHECKED:
polling_deadline = grpc_timespec_to_millis_round_up(now);
/* fall through */
case GRPC_TIMERS_CHECKED_AND_EMPTY:
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work", grpc_pollset_work(&exec_ctx, g_pollset, &worker,
polling_deadline)));
break;
}
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
}
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
}
static void destroy_pollset(grpc_exec_ctx* exec_ctx, void* p,
grpc_error* error) {
grpc_pollset_destroy(exec_ctx, p);
}
int main(int argc, char** argv) {
grpc_closure destroyed;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_test_init(argc, argv);
grpc_init();
g_pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(g_pollset, &g_mu);
grpc_exec_ctx_finish(&exec_ctx);
test_succeeds();
gpr_log(GPR_ERROR, "End of first test");
test_fails();
GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, g_pollset,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed);
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
gpr_free(g_pollset);
return 0;
}
#else /* GRPC_UV */
int main(int argc, char** argv) { return 1; }
#endif /* GRPC_UV */
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