Initial checkin of gRPC to third_party/

third_party/grpc/test/core/iomgr/tcp_client_posix_test.c

Index: third_party/grpc/test/core/iomgr/tcp_client_posix_test.c
diff --git a/third_party/grpc/test/core/iomgr/tcp_client_posix_test.c b/third_party/grpc/test/core/iomgr/tcp_client_posix_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..746dfd85be670bf683eacdc962be7646a7f0c789
--- /dev/null
+++ b/third_party/grpc/test/core/iomgr/tcp_client_posix_test.c
@@ -0,0 +1,205 @@
+/*
+ *
+ * Copyright 2015-2016, 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/iomgr/tcp_client.h"
+
+#include <errno.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+
+#include "src/core/iomgr/iomgr.h"
+#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/iomgr/timer.h"
+#include "test/core/util/test_config.h"
+
+static grpc_pollset_set *g_pollset_set;
+static gpr_mu *g_mu;
+static grpc_pollset *g_pollset;
+static int g_connections_complete = 0;
+static grpc_endpoint *g_connecting = NULL;
+
+static gpr_timespec test_deadline(void) {
+  return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
+}
+
+static void finish_connection() {
+  gpr_mu_lock(g_mu);
+  g_connections_complete++;
+  grpc_pollset_kick(g_pollset, NULL);
+  gpr_mu_unlock(g_mu);
+}
+
+static void must_succeed(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
+  GPR_ASSERT(g_connecting != NULL);
+  GPR_ASSERT(success);
+  grpc_endpoint_shutdown(exec_ctx, g_connecting);
+  grpc_endpoint_destroy(exec_ctx, g_connecting);
+  g_connecting = NULL;
+  finish_connection();
+}
+
+static void must_fail(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
+  GPR_ASSERT(g_connecting == NULL);
+  GPR_ASSERT(!success);
+  finish_connection();
+}
+
+void test_succeeds(void) {
+  struct sockaddr_in addr;
+  socklen_t addr_len = sizeof(addr);
+  int svr_fd;
+  int r;
+  int connections_complete_before;
+  grpc_closure done;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+  gpr_log(GPR_DEBUG, "test_succeeds");
+
+  memset(&addr, 0, sizeof(addr));
+  addr.sin_family = AF_INET;
+
+  /* create a dummy server */
+  svr_fd = socket(AF_INET, SOCK_STREAM, 0);
+  GPR_ASSERT(svr_fd >= 0);
+  GPR_ASSERT(0 == bind(svr_fd, (struct sockaddr *)&addr, addr_len));
+  GPR_ASSERT(0 == listen(svr_fd, 1));
+
+  gpr_mu_lock(g_mu);
+  connections_complete_before = g_connections_complete;
+  gpr_mu_unlock(g_mu);
+
+  /* connect to it */
+  GPR_ASSERT(getsockname(svr_fd, (struct sockaddr *)&addr, &addr_len) == 0);
+  grpc_closure_init(&done, must_succeed, NULL);
+  grpc_tcp_client_connect(&exec_ctx, &done, &g_connecting, g_pollset_set,
+                          (struct sockaddr *)&addr, addr_len,
+                          gpr_inf_future(GPR_CLOCK_REALTIME));
+
+  /* await the connection */
+  do {
+    addr_len = sizeof(addr);
+    r = accept(svr_fd, (struct sockaddr *)&addr, &addr_len);
+  } while (r == -1 && errno == EINTR);
+  GPR_ASSERT(r >= 0);
+  close(r);
+
+  gpr_mu_lock(g_mu);
+
+  while (g_connections_complete == connections_complete_before) {
+    grpc_pollset_worker *worker = NULL;
+    grpc_pollset_work(&exec_ctx, g_pollset, &worker,
+                      gpr_now(GPR_CLOCK_MONOTONIC),
+                      GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5));
+    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);
+}
+
+void test_fails(void) {
+  struct sockaddr_in addr;
+  socklen_t addr_len = sizeof(addr);
+  int connections_complete_before;
+  grpc_closure done;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+  gpr_log(GPR_DEBUG, "test_fails");
+
+  memset(&addr, 0, sizeof(addr));
+  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_tcp_client_connect(&exec_ctx, &done, &g_connecting, g_pollset_set,
+                          (struct sockaddr *)&addr, addr_len,
+                          gpr_inf_future(GPR_CLOCK_REALTIME));
+
+  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);
+    gpr_timespec polling_deadline = test_deadline();
+    if (!grpc_timer_check(&exec_ctx, now, &polling_deadline)) {
+      grpc_pollset_work(&exec_ctx, g_pollset, &worker, now, polling_deadline);
+    }
+    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, bool success) {
+  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_set = grpc_pollset_set_create();
+  g_pollset = gpr_malloc(grpc_pollset_size());
+  grpc_pollset_init(g_pollset, &g_mu);
+  grpc_pollset_set_add_pollset(&exec_ctx, g_pollset_set, g_pollset);
+  grpc_exec_ctx_finish(&exec_ctx);
+  test_succeeds();
+  gpr_log(GPR_ERROR, "End of first test");
+  test_fails();
+  grpc_pollset_set_destroy(g_pollset_set);
+  grpc_closure_init(&destroyed, destroy_pollset, g_pollset);
+  grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed);
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_shutdown();
+  gpr_free(g_pollset);
+  return 0;
+}