rename all test core files to cc and a lot of C++ style conversions

1 files changed, 512 insertions, 0 deletions

diff --git a/test/core/iomgr/tcp_server_posix_test.cc b/test/core/iomgr/tcp_server_posix_test.cc
new file mode 100644
index 0000000000..a44e3954f2
--- /dev/null
+++ b/test/core/iomgr/tcp_server_posix_test.cc
@@ -0,0 +1,512 @@
+/*
+ *
+ * Copyright 2015 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 posix sockets enabled
+#ifdef GRPC_POSIX_SOCKET
+
+#include "src/core/lib/iomgr/tcp_server.h"
+
+#include <errno.h>
+#include <ifaddrs.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.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/error.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 {
+  /* Owns a ref to server. */
+  grpc_tcp_server *server;
+  unsigned port_index;
+  unsigned fd_index;
+  int server_fd;
+} on_connect_result;
+
+typedef struct {
+  grpc_tcp_server *server;
+
+  /* arg is this server_weak_ref. */
+  grpc_closure server_shutdown;
+} server_weak_ref;
+
+#define MAX_URI 1024
+typedef struct {
+  grpc_resolved_address addr;
+  char str[MAX_URI];
+} test_addr;
+
+#define MAX_ADDRS 100
+typedef struct {
+  size_t naddrs;
+  test_addr addrs[MAX_ADDRS];
+} test_addrs;
+
+static on_connect_result g_result = {NULL, 0, 0, -1};
+
+static char family_name_buf[1024];
+static const char *sock_family_name(int family) {
+  if (family == AF_INET) {
+    return "AF_INET";
+  } else if (family == AF_INET6) {
+    return "AF_INET6";
+  } else if (family == AF_UNSPEC) {
+    return "AF_UNSPEC";
+  } else {
+    sprintf(family_name_buf, "%d", family);
+    return family_name_buf;
+  }
+}
+
+static void on_connect_result_init(on_connect_result *result) {
+  result->server = NULL;
+  result->port_index = 0;
+  result->fd_index = 0;
+  result->server_fd = -1;
+}
+
+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;
+  result->server_fd = grpc_tcp_server_port_fd(
+      result->server, acceptor->port_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 = static_cast<server_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 test_addr_init_str(test_addr *addr) {
+  char *str = NULL;
+  if (grpc_sockaddr_to_string(&str, &addr->addr, 0) != -1) {
+    size_t str_len;
+    memcpy(addr->str, str, (str_len = strnlen(str, sizeof(addr->str) - 1)));
+    addr->str[str_len] = '\0';
+    gpr_free(str);
+  } else {
+    addr->str[0] = '\0';
+  }
+}
+
+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_ERROR_CREATE_FROM_STATIC_STRING("Connected"));
+  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(exec_ctx, 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 = -1;
+  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 = -1;
+
+  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 grpc_error *tcp_connect(grpc_exec_ctx *exec_ctx, const test_addr *remote,
+                               on_connect_result *result) {
+  grpc_millis deadline =
+      grpc_timespec_to_millis_round_up(grpc_timeout_seconds_to_deadline(10));
+  int clifd;
+  int nconnects_before;
+  const struct sockaddr *remote_addr =
+      (const struct sockaddr *)remote->addr.addr;
+
+  gpr_log(GPR_INFO, "Connecting to %s", remote->str);
+  gpr_mu_lock(g_mu);
+  nconnects_before = g_nconnects;
+  on_connect_result_init(&g_result);
+  clifd = socket(remote_addr->sa_family, SOCK_STREAM, 0);
+  if (clifd < 0) {
+    gpr_mu_unlock(g_mu);
+    return GRPC_OS_ERROR(errno, "Failed to create socket");
+  }
+  gpr_log(GPR_DEBUG, "start connect to %s", remote->str);
+  if (connect(clifd, remote_addr, (socklen_t)remote->addr.len) != 0) {
+    gpr_mu_unlock(g_mu);
+    close(clifd);
+    return GRPC_OS_ERROR(errno, "connect");
+  }
+  gpr_log(GPR_DEBUG, "wait");
+  while (g_nconnects == nconnects_before &&
+         deadline > grpc_exec_ctx_now(exec_ctx)) {
+    grpc_pollset_worker *worker = NULL;
+    grpc_error *err;
+    if ((err = grpc_pollset_work(exec_ctx, g_pollset, &worker, deadline)) !=
+        GRPC_ERROR_NONE) {
+      gpr_mu_unlock(g_mu);
+      close(clifd);
+      return err;
+    }
+    gpr_mu_unlock(g_mu);
+    grpc_exec_ctx_finish(exec_ctx);
+    gpr_mu_lock(g_mu);
+  }
+  gpr_log(GPR_DEBUG, "wait done");
+  if (g_nconnects != nconnects_before + 1) {
+    gpr_mu_unlock(g_mu);
+    close(clifd);
+    return GRPC_ERROR_CREATE_FROM_STATIC_STRING("Didn't connect");
+  }
+  close(clifd);
+  *result = g_result;
+
+  gpr_mu_unlock(g_mu);
+  gpr_log(GPR_INFO, "Result (%d, %d) fd %d", result->port_index,
+          result->fd_index, result->server_fd);
+  grpc_tcp_server_unref(exec_ctx, result->server);
+  return GRPC_ERROR_NONE;
+}
+
+/* Tests a tcp server on "::" listeners with multiple ports. If channel_args is
+   non-NULL, pass them to the server. If dst_addrs is non-NULL, use valid addrs
+   as destination addrs (port is not set). If dst_addrs is NULL, use listener
+   addrs as destination addrs. If test_dst_addrs is true, test connectivity with
+   each destination address, set grpc_resolved_address::len=0 for failures, but
+   don't fail the overall unitest. */
+static void test_connect(size_t num_connects,
+                         const grpc_channel_args *channel_args,
+                         test_addrs *dst_addrs, bool test_dst_addrs) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_resolved_address resolved_addr;
+  grpc_resolved_address resolved_addr1;
+  struct sockaddr_storage *const addr =
+      (struct sockaddr_storage *)resolved_addr.addr;
+  struct sockaddr_storage *const addr1 =
+      (struct sockaddr_storage *)resolved_addr1.addr;
+  unsigned svr_fd_count;
+  int port;
+  int svr_port;
+  unsigned svr1_fd_count;
+  int svr1_port;
+  grpc_tcp_server *s;
+  const unsigned num_ports = 2;
+  GPR_ASSERT(GRPC_ERROR_NONE ==
+             grpc_tcp_server_create(&exec_ctx, NULL, channel_args, &s));
+  unsigned port_num;
+  server_weak_ref weak_ref;
+  server_weak_ref_init(&weak_ref);
+  server_weak_ref_set(&weak_ref, s);
+  LOG_TEST("test_connect");
+  gpr_log(GPR_INFO,
+          "clients=%lu, num chan args=%lu, remote IP=%s, test_dst_addrs=%d",
+          (unsigned long)num_connects,
+          (unsigned long)(channel_args != NULL ? channel_args->num_args : 0),
+          dst_addrs != NULL ? "<specific>" : "::", test_dst_addrs);
+  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_LOG_IF_ERROR(
+      "grpc_tcp_server_add_port",
+      grpc_tcp_server_add_port(s, &resolved_addr, &svr_port)));
+  gpr_log(GPR_INFO, "Allocated port %d", svr_port);
+  GPR_ASSERT(svr_port > 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();
+  GPR_ASSERT(svr1_port > 0);
+  gpr_log(GPR_INFO, "Picked unused port %d", svr1_port);
+  grpc_sockaddr_set_port(&resolved_addr1, svr1_port);
+  GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr1, &port) ==
+                 GRPC_ERROR_NONE &&
+             port == svr1_port);
+
+  /* Bad port_index. */
+  GPR_ASSERT(grpc_tcp_server_port_fd_count(s, 2) == 0);
+  GPR_ASSERT(grpc_tcp_server_port_fd(s, 2, 0) < 0);
+
+  /* Bad fd_index. */
+  GPR_ASSERT(grpc_tcp_server_port_fd(s, 0, 100) < 0);
+  GPR_ASSERT(grpc_tcp_server_port_fd(s, 1, 100) < 0);
+
+  /* Got at least one fd per port. */
+  svr_fd_count = grpc_tcp_server_port_fd_count(s, 0);
+  GPR_ASSERT(svr_fd_count >= 1);
+  svr1_fd_count = grpc_tcp_server_port_fd_count(s, 1);
+  GPR_ASSERT(svr1_fd_count >= 1);
+
+  grpc_tcp_server_start(&exec_ctx, s, &g_pollset, 1, on_connect, NULL);
+
+  if (dst_addrs != NULL) {
+    int ports[] = {svr_port, svr1_port};
+    for (port_num = 0; port_num < num_ports; ++port_num) {
+      size_t dst_idx;
+      size_t num_tested = 0;
+      for (dst_idx = 0; dst_idx < dst_addrs->naddrs; ++dst_idx) {
+        test_addr dst = dst_addrs->addrs[dst_idx];
+        on_connect_result result;
+        grpc_error *err;
+        if (dst.addr.len == 0) {
+          gpr_log(GPR_DEBUG, "Skipping test of non-functional local IP %s",
+                  dst.str);
+          continue;
+        }
+        GPR_ASSERT(grpc_sockaddr_set_port(&dst.addr, ports[port_num]));
+        test_addr_init_str(&dst);
+        ++num_tested;
+        on_connect_result_init(&result);
+        if ((err = tcp_connect(&exec_ctx, &dst, &result)) == GRPC_ERROR_NONE &&
+            result.server_fd >= 0 && result.server == s) {
+          continue;
+        }
+        gpr_log(GPR_ERROR, "Failed to connect to %s: %s", dst.str,
+                grpc_error_string(err));
+        GPR_ASSERT(test_dst_addrs);
+        dst_addrs->addrs[dst_idx].addr.len = 0;
+        GRPC_ERROR_UNREF(err);
+      }
+      GPR_ASSERT(num_tested > 0);
+    }
+  } else {
+    for (port_num = 0; port_num < num_ports; ++port_num) {
+      const unsigned num_fds = grpc_tcp_server_port_fd_count(s, port_num);
+      unsigned fd_num;
+      for (fd_num = 0; fd_num < num_fds; ++fd_num) {
+        int fd = grpc_tcp_server_port_fd(s, port_num, fd_num);
+        size_t connect_num;
+        test_addr dst;
+        GPR_ASSERT(fd >= 0);
+        dst.addr.len = sizeof(dst.addr.addr);
+        GPR_ASSERT(getsockname(fd, (struct sockaddr *)dst.addr.addr,
+                               (socklen_t *)&dst.addr.len) == 0);
+        GPR_ASSERT(dst.addr.len <= sizeof(dst.addr.addr));
+        test_addr_init_str(&dst);
+        gpr_log(GPR_INFO, "(%d, %d) fd %d family %s listening on %s", port_num,
+                fd_num, fd, sock_family_name(addr->ss_family), dst.str);
+        for (connect_num = 0; connect_num < num_connects; ++connect_num) {
+          on_connect_result result;
+          on_connect_result_init(&result);
+          GPR_ASSERT(GRPC_LOG_IF_ERROR("tcp_connect",
+                                       tcp_connect(&exec_ctx, &dst, &result)));
+          GPR_ASSERT(result.server_fd == fd);
+          GPR_ASSERT(result.port_index == port_num);
+          GPR_ASSERT(result.fd_index == fd_num);
+          GPR_ASSERT(result.server == s);
+          GPR_ASSERT(
+              grpc_tcp_server_port_fd(s, result.port_index, result.fd_index) ==
+              result.server_fd);
+        }
+      }
+    }
+  }
+  /* Weak ref to server valid until final unref. */
+  GPR_ASSERT(weak_ref.server != NULL);
+  GPR_ASSERT(grpc_tcp_server_port_fd(s, 0, 0) >= 0);
+
+  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(exec_ctx, static_cast<grpc_pollset *>(p));
+}
+
+int main(int argc, char **argv) {
+  grpc_closure destroyed;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_arg chan_args[1];
+  chan_args[0].type = GRPC_ARG_INTEGER;
+  chan_args[0].key = const_cast<char *>(GRPC_ARG_EXPAND_WILDCARD_ADDRS);
+  chan_args[0].value.integer = 1;
+  const grpc_channel_args channel_args = {1, chan_args};
+  struct ifaddrs *ifa = NULL;
+  struct ifaddrs *ifa_it;
+  // Zalloc dst_addrs to avoid oversized frames.
+  test_addrs *dst_addrs =
+      static_cast<test_addrs *>(gpr_zalloc(sizeof(*dst_addrs)));
+  grpc_test_init(argc, argv);
+  grpc_init();
+  g_pollset = static_cast<grpc_pollset *>(gpr_zalloc(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();
+
+  if (getifaddrs(&ifa) != 0 || ifa == NULL) {
+    gpr_log(GPR_ERROR, "getifaddrs: %s", strerror(errno));
+    return EXIT_FAILURE;
+  }
+  dst_addrs->naddrs = 0;
+  for (ifa_it = ifa; ifa_it != NULL && dst_addrs->naddrs < MAX_ADDRS;
+       ifa_it = ifa_it->ifa_next) {
+    if (ifa_it->ifa_addr == NULL) {
+      continue;
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET) {
+      dst_addrs->addrs[dst_addrs->naddrs].addr.len = sizeof(struct sockaddr_in);
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET6) {
+      dst_addrs->addrs[dst_addrs->naddrs].addr.len =
+          sizeof(struct sockaddr_in6);
+    } else {
+      continue;
+    }
+    memcpy(dst_addrs->addrs[dst_addrs->naddrs].addr.addr, ifa_it->ifa_addr,
+           dst_addrs->addrs[dst_addrs->naddrs].addr.len);
+    GPR_ASSERT(
+        grpc_sockaddr_set_port(&dst_addrs->addrs[dst_addrs->naddrs].addr, 0));
+    test_addr_init_str(&dst_addrs->addrs[dst_addrs->naddrs]);
+    ++dst_addrs->naddrs;
+  }
+  freeifaddrs(ifa);
+  ifa = NULL;
+
+  /* Connect to same addresses as listeners. */
+  test_connect(1, NULL, NULL, false);
+  test_connect(10, NULL, NULL, false);
+
+  /* Set dst_addrs->addrs[i].len=0 for dst_addrs that are unreachable with a
+     "::" listener. */
+  test_connect(1, NULL, dst_addrs, true);
+
+  /* Test connect(2) with dst_addrs. */
+  test_connect(1, &channel_args, dst_addrs, false);
+  /* Test connect(2) with dst_addrs. */
+  test_connect(10, &channel_args, dst_addrs, false);
+
+  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(dst_addrs);
+  gpr_free(g_pollset);
+  return EXIT_SUCCESS;
+}
+
+#else /* GRPC_POSIX_SOCKET */
+
+int main(int argc, char **argv) { return 1; }
+
+#endif /* GRPC_POSIX_SOCKET */