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-rw-r--r--test/core/iomgr/tcp_server_uv_test.c339
1 files changed, 339 insertions, 0 deletions
diff --git a/test/core/iomgr/tcp_server_uv_test.c b/test/core/iomgr/tcp_server_uv_test.c
new file mode 100644
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+++ b/test/core/iomgr/tcp_server_uv_test.c
@@ -0,0 +1,339 @@
+/*
+ *
+ * Copyright 2017, 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 "src/core/lib/iomgr/port.h"
+
+// This test won't work except with libuv
+#ifdef GRPC_UV
+
+#include <uv.h>
+
+#include "src/core/lib/iomgr/tcp_server.h"
+
+#include <string.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/sync.h>
+#include <grpc/support/time.h>
+
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
+
+#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", #x)
+
+static gpr_mu *g_mu;
+static grpc_pollset *g_pollset;
+static int g_nconnects = 0;
+
+typedef struct on_connect_result {
+ /* Owns a ref to server. */
+ grpc_tcp_server *server;
+ unsigned port_index;
+ unsigned fd_index;
+} on_connect_result;
+
+typedef struct server_weak_ref {
+ grpc_tcp_server *server;
+
+ /* arg is this server_weak_ref. */
+ grpc_closure server_shutdown;
+} server_weak_ref;
+
+static on_connect_result g_result = {NULL, 0, 0};
+
+static void on_connect_result_init(on_connect_result *result) {
+ result->server = NULL;
+ result->port_index = 0;
+ result->fd_index = 0;
+}
+
+static void on_connect_result_set(on_connect_result *result,
+ const grpc_tcp_server_acceptor *acceptor) {
+ result->server = grpc_tcp_server_ref(acceptor->from_server);
+ result->port_index = acceptor->port_index;
+ result->fd_index = acceptor->fd_index;
+}
+
+static void server_weak_ref_shutdown(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ server_weak_ref *weak_ref = arg;
+ weak_ref->server = NULL;
+}
+
+static void server_weak_ref_init(server_weak_ref *weak_ref) {
+ weak_ref->server = NULL;
+ grpc_closure_init(&weak_ref->server_shutdown, server_weak_ref_shutdown,
+ weak_ref, grpc_schedule_on_exec_ctx);
+}
+
+/* Make weak_ref->server_shutdown a shutdown_starting cb on server.
+ grpc_tcp_server promises that the server object will live until
+ weak_ref->server_shutdown has returned. A strong ref on grpc_tcp_server
+ should be held until server_weak_ref_set() returns to avoid a race where the
+ server is deleted before the shutdown_starting cb is added. */
+static void server_weak_ref_set(server_weak_ref *weak_ref,
+ grpc_tcp_server *server) {
+ grpc_tcp_server_shutdown_starting_add(server, &weak_ref->server_shutdown);
+ weak_ref->server = server;
+}
+
+static void on_connect(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp,
+ grpc_pollset *pollset,
+ grpc_tcp_server_acceptor *acceptor) {
+ grpc_endpoint_shutdown(exec_ctx, tcp);
+ grpc_endpoint_destroy(exec_ctx, tcp);
+
+ on_connect_result temp_result;
+ on_connect_result_set(&temp_result, acceptor);
+ gpr_free(acceptor);
+
+ gpr_mu_lock(g_mu);
+ g_result = temp_result;
+ g_nconnects++;
+ GPR_ASSERT(
+ GRPC_LOG_IF_ERROR("pollset_kick", grpc_pollset_kick(g_pollset, NULL)));
+ gpr_mu_unlock(g_mu);
+}
+
+static void test_no_op(void) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_tcp_server *s;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
+ grpc_tcp_server_unref(&exec_ctx, s);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_no_op_with_start(void) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_tcp_server *s;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
+ LOG_TEST("test_no_op_with_start");
+ grpc_tcp_server_start(&exec_ctx, s, NULL, 0, on_connect, NULL);
+ grpc_tcp_server_unref(&exec_ctx, s);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_no_op_with_port(void) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_resolved_address resolved_addr;
+ struct sockaddr_in *addr = (struct sockaddr_in *)resolved_addr.addr;
+ grpc_tcp_server *s;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
+ LOG_TEST("test_no_op_with_port");
+
+ memset(&resolved_addr, 0, sizeof(resolved_addr));
+ resolved_addr.len = sizeof(struct sockaddr_in);
+ addr->sin_family = AF_INET;
+ int port;
+ GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr, &port) ==
+ GRPC_ERROR_NONE &&
+ port > 0);
+
+ grpc_tcp_server_unref(&exec_ctx, s);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_no_op_with_port_and_start(void) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_resolved_address resolved_addr;
+ struct sockaddr_in *addr = (struct sockaddr_in *)resolved_addr.addr;
+ grpc_tcp_server *s;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
+ LOG_TEST("test_no_op_with_port_and_start");
+ int port;
+
+ memset(&resolved_addr, 0, sizeof(resolved_addr));
+ resolved_addr.len = sizeof(struct sockaddr_in);
+ addr->sin_family = AF_INET;
+ GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr, &port) ==
+ GRPC_ERROR_NONE &&
+ port > 0);
+
+ grpc_tcp_server_start(&exec_ctx, s, NULL, 0, on_connect, NULL);
+
+ grpc_tcp_server_unref(&exec_ctx, s);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void connect_cb(uv_connect_t *req, int status) {
+ GPR_ASSERT(status == 0);
+ gpr_free(req);
+}
+
+static void close_cb(uv_handle_t *handle) { gpr_free(handle); }
+
+static void tcp_connect(grpc_exec_ctx *exec_ctx, const struct sockaddr *remote,
+ socklen_t remote_len, on_connect_result *result) {
+ gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
+ uv_tcp_t *client_handle = gpr_malloc(sizeof(uv_tcp_t));
+ uv_connect_t *req = gpr_malloc(sizeof(uv_connect_t));
+ int nconnects_before;
+
+ gpr_mu_lock(g_mu);
+ nconnects_before = g_nconnects;
+ on_connect_result_init(&g_result);
+ GPR_ASSERT(uv_tcp_init(uv_default_loop(), client_handle) == 0);
+ gpr_log(GPR_DEBUG, "start connect");
+ GPR_ASSERT(uv_tcp_connect(req, client_handle, remote, connect_cb) == 0);
+ gpr_log(GPR_DEBUG, "wait");
+ while (g_nconnects == nconnects_before &&
+ gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) {
+ grpc_pollset_worker *worker = NULL;
+ GPR_ASSERT(GRPC_LOG_IF_ERROR(
+ "pollset_work",
+ grpc_pollset_work(exec_ctx, g_pollset, &worker,
+ gpr_now(GPR_CLOCK_MONOTONIC), deadline)));
+ gpr_mu_unlock(g_mu);
+ grpc_exec_ctx_finish(exec_ctx);
+ gpr_mu_lock(g_mu);
+ }
+ gpr_log(GPR_DEBUG, "wait done");
+ GPR_ASSERT(g_nconnects == nconnects_before + 1);
+ uv_close((uv_handle_t *)client_handle, close_cb);
+ *result = g_result;
+
+ gpr_mu_unlock(g_mu);
+}
+
+/* Tests a tcp server with multiple ports. */
+static void test_connect(unsigned n) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_resolved_address resolved_addr;
+ grpc_resolved_address resolved_addr1;
+ struct sockaddr_storage *addr = (struct sockaddr_storage *)resolved_addr.addr;
+ struct sockaddr_storage *addr1 =
+ (struct sockaddr_storage *)resolved_addr1.addr;
+ int svr_port;
+ int svr1_port;
+ grpc_tcp_server *s;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
+ unsigned i;
+ server_weak_ref weak_ref;
+ server_weak_ref_init(&weak_ref);
+ LOG_TEST("test_connect");
+ gpr_log(GPR_INFO, "clients=%d", n);
+ memset(&resolved_addr, 0, sizeof(resolved_addr));
+ memset(&resolved_addr1, 0, sizeof(resolved_addr1));
+ resolved_addr.len = sizeof(struct sockaddr_storage);
+ resolved_addr1.len = sizeof(struct sockaddr_storage);
+ addr->ss_family = addr1->ss_family = AF_INET;
+ GPR_ASSERT(GRPC_ERROR_NONE ==
+ grpc_tcp_server_add_port(s, &resolved_addr, &svr_port));
+ GPR_ASSERT(svr_port > 0);
+ GPR_ASSERT(uv_ip6_addr("::", svr_port, (struct sockaddr_in6 *)addr) == 0);
+ /* Cannot use wildcard (port==0), because add_port() will try to reuse the
+ same port as a previous add_port(). */
+ svr1_port = grpc_pick_unused_port_or_die();
+ grpc_sockaddr_set_port(&resolved_addr1, svr1_port);
+ GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr1, &svr_port) ==
+ GRPC_ERROR_NONE &&
+ svr_port == svr1_port);
+
+ grpc_tcp_server_start(&exec_ctx, s, &g_pollset, 1, on_connect, NULL);
+
+ GPR_ASSERT(uv_ip6_addr("::", svr_port, (struct sockaddr_in6 *)addr1) == 0);
+
+ for (i = 0; i < n; i++) {
+ on_connect_result result;
+ on_connect_result_init(&result);
+ tcp_connect(&exec_ctx, (struct sockaddr *)addr,
+ (socklen_t)resolved_addr.len, &result);
+ GPR_ASSERT(result.port_index == 0);
+ GPR_ASSERT(result.server == s);
+ if (weak_ref.server == NULL) {
+ server_weak_ref_set(&weak_ref, result.server);
+ }
+ grpc_tcp_server_unref(&exec_ctx, result.server);
+
+ on_connect_result_init(&result);
+ tcp_connect(&exec_ctx, (struct sockaddr *)addr1,
+ (socklen_t)resolved_addr1.len, &result);
+ GPR_ASSERT(result.port_index == 1);
+ GPR_ASSERT(result.server == s);
+ grpc_tcp_server_unref(&exec_ctx, result.server);
+ }
+
+ /* Weak ref to server valid until final unref. */
+ GPR_ASSERT(weak_ref.server != NULL);
+
+ grpc_tcp_server_unref(&exec_ctx, s);
+ grpc_exec_ctx_finish(&exec_ctx);
+
+ /* Weak ref lost. */
+ GPR_ASSERT(weak_ref.server == NULL);
+}
+
+static void destroy_pollset(grpc_exec_ctx *exec_ctx, void *p,
+ grpc_error *error) {
+ grpc_pollset_destroy(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);
+
+ test_no_op();
+ test_no_op_with_start();
+ test_no_op_with_port();
+ test_no_op_with_port_and_start();
+ test_connect(1);
+ test_connect(10);
+
+ 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 */