Initial checkin of gRPC to third_party/

third_party/grpc/test/core/util/test_tcp_server.c

Index: third_party/grpc/test/core/util/test_tcp_server.c
diff --git a/third_party/grpc/test/core/util/test_tcp_server.c b/third_party/grpc/test/core/util/test_tcp_server.c
new file mode 100644
index 0000000000000000000000000000000000000000..ab379441d8c6c57f8437566db7278225ac6a7f4f
--- /dev/null
+++ b/third_party/grpc/test/core/util/test_tcp_server.c
@@ -0,0 +1,119 @@
+/*
+ *
+ * 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 "test/core/util/test_tcp_server.h"
+
+#include <grpc/grpc.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/time.h>
+#include <string.h>
+#include "src/core/iomgr/endpoint.h"
+#include "src/core/iomgr/sockaddr.h"
+#include "src/core/iomgr/tcp_server.h"
+#include "test/core/util/port.h"
+
+static void on_server_destroyed(grpc_exec_ctx *exec_ctx, void *data,
+                                bool success) {
+  test_tcp_server *server = data;
+  server->shutdown = 1;
+}
+
+void test_tcp_server_init(test_tcp_server *server,
+                          grpc_tcp_server_cb on_connect, void *user_data) {
+  grpc_init();
+  server->tcp_server = NULL;
+  grpc_closure_init(&server->shutdown_complete, on_server_destroyed, server);
+  server->shutdown = 0;
+  server->pollset = gpr_malloc(grpc_pollset_size());
+  grpc_pollset_init(server->pollset, &server->mu);
+  server->on_connect = on_connect;
+  server->cb_data = user_data;
+}
+
+void test_tcp_server_start(test_tcp_server *server, int port) {
+  struct sockaddr_in addr;
+  int port_added;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons((uint16_t)port);
+  memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
+
+  server->tcp_server = grpc_tcp_server_create(&server->shutdown_complete);
+  port_added =
+      grpc_tcp_server_add_port(server->tcp_server, &addr, sizeof(addr));
+  GPR_ASSERT(port_added == port);
+
+  grpc_tcp_server_start(&exec_ctx, server->tcp_server, &server->pollset, 1,
+                        server->on_connect, server->cb_data);
+  gpr_log(GPR_INFO, "test tcp server listening on 0.0.0.0:%d", port);
+
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+void test_tcp_server_poll(test_tcp_server *server, int seconds) {
+  grpc_pollset_worker *worker = NULL;
+  gpr_timespec deadline =
+      gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC),
+                   gpr_time_from_seconds(seconds, GPR_TIMESPAN));
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_mu_lock(server->mu);
+  grpc_pollset_work(&exec_ctx, server->pollset, &worker,
+                    gpr_now(GPR_CLOCK_MONOTONIC), deadline);
+  gpr_mu_unlock(server->mu);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void do_nothing(grpc_exec_ctx *exec_ctx, void *arg, bool success) {}
+
+void test_tcp_server_destroy(test_tcp_server *server) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_timespec shutdown_deadline;
+  grpc_closure do_nothing_cb;
+  grpc_tcp_server_unref(&exec_ctx, server->tcp_server);
+  grpc_closure_init(&do_nothing_cb, do_nothing, NULL);
+  shutdown_deadline = gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC),
+                                   gpr_time_from_seconds(5, GPR_TIMESPAN));
+  while (!server->shutdown &&
+         gpr_time_cmp(gpr_now(GPR_CLOCK_MONOTONIC), shutdown_deadline) < 0) {
+    test_tcp_server_poll(server, 1);
+  }
+  grpc_pollset_shutdown(&exec_ctx, server->pollset, &do_nothing_cb);
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_pollset_destroy(server->pollset);
+  gpr_free(server->pollset);
+  grpc_shutdown();
+}