mirror of https://github.com/grpc/grpc.git
Yang Gao
10 years ago
commit
7671434608
15 changed files with 817 additions and 1 deletions
@ -0,0 +1,438 @@ |
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/*
|
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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/* FIXME: "posix" files shouldn't be depending on _GNU_SOURCE */ |
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#ifndef _GNU_SOURCE |
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#define _GNU_SOURCE |
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#endif |
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#include <grpc/support/port_platform.h> |
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#ifdef GPR_POSIX_SOCKET |
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#include "src/core/iomgr/udp_server.h" |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#include <netinet/in.h> |
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#include <netinet/tcp.h> |
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#include <string.h> |
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#include <sys/socket.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <sys/un.h> |
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#include <unistd.h> |
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#include "src/core/iomgr/fd_posix.h" |
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#include "src/core/iomgr/pollset_posix.h" |
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#include "src/core/iomgr/resolve_address.h" |
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#include "src/core/iomgr/sockaddr_utils.h" |
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#include "src/core/iomgr/socket_utils_posix.h" |
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#include "src/core/support/string.h" |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/sync.h> |
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#include <grpc/support/string_util.h> |
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#include <grpc/support/time.h> |
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#define INIT_PORT_CAP 2 |
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/* one listening port */ |
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typedef struct { |
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int fd; |
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grpc_fd *emfd; |
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grpc_udp_server *server; |
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union { |
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gpr_uint8 untyped[GRPC_MAX_SOCKADDR_SIZE]; |
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struct sockaddr sockaddr; |
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struct sockaddr_un un; |
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} addr; |
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int addr_len; |
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grpc_iomgr_closure read_closure; |
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grpc_iomgr_closure destroyed_closure; |
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grpc_udp_server_read_cb read_cb; |
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} server_port; |
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static void unlink_if_unix_domain_socket(const struct sockaddr_un *un) { |
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struct stat st; |
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if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) { |
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unlink(un->sun_path); |
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} |
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} |
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|
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/* the overall server */ |
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struct grpc_udp_server { |
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grpc_udp_server_cb cb; |
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void *cb_arg; |
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gpr_mu mu; |
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gpr_cv cv; |
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/* active port count: how many ports are actually still listening */ |
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size_t active_ports; |
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/* destroyed port count: how many ports are completely destroyed */ |
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size_t destroyed_ports; |
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/* is this server shutting down? (boolean) */ |
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int shutdown; |
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/* all listening ports */ |
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server_port *ports; |
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size_t nports; |
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size_t port_capacity; |
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/* shutdown callback */ |
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void (*shutdown_complete)(void *); |
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void *shutdown_complete_arg; |
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/* all pollsets interested in new connections */ |
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grpc_pollset **pollsets; |
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/* number of pollsets in the pollsets array */ |
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size_t pollset_count; |
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}; |
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grpc_udp_server *grpc_udp_server_create(void) { |
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grpc_udp_server *s = gpr_malloc(sizeof(grpc_udp_server)); |
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gpr_mu_init(&s->mu); |
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gpr_cv_init(&s->cv); |
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s->active_ports = 0; |
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s->destroyed_ports = 0; |
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s->shutdown = 0; |
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s->cb = NULL; |
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s->cb_arg = NULL; |
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s->ports = gpr_malloc(sizeof(server_port) * INIT_PORT_CAP); |
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s->nports = 0; |
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s->port_capacity = INIT_PORT_CAP; |
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return s; |
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} |
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static void finish_shutdown(grpc_udp_server *s) { |
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s->shutdown_complete(s->shutdown_complete_arg); |
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gpr_mu_destroy(&s->mu); |
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gpr_cv_destroy(&s->cv); |
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gpr_free(s->ports); |
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gpr_free(s); |
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} |
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static void destroyed_port(void *server, int success) { |
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grpc_udp_server *s = server; |
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gpr_mu_lock(&s->mu); |
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s->destroyed_ports++; |
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if (s->destroyed_ports == s->nports) { |
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gpr_mu_unlock(&s->mu); |
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finish_shutdown(s); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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} |
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} |
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static void dont_care_about_shutdown_completion(void *ignored) {} |
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/* called when all listening endpoints have been shutdown, so no further
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events will be received on them - at this point it's safe to destroy |
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things */ |
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static void deactivated_all_ports(grpc_udp_server *s) { |
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size_t i; |
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/* delete ALL the things */ |
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gpr_mu_lock(&s->mu); |
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if (!s->shutdown) { |
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gpr_mu_unlock(&s->mu); |
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return; |
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} |
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if (s->nports) { |
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for (i = 0; i < s->nports; i++) { |
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server_port *sp = &s->ports[i]; |
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if (sp->addr.sockaddr.sa_family == AF_UNIX) { |
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unlink_if_unix_domain_socket(&sp->addr.un); |
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} |
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sp->destroyed_closure.cb = destroyed_port; |
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sp->destroyed_closure.cb_arg = s; |
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grpc_fd_orphan(sp->emfd, &sp->destroyed_closure, "udp_listener_shutdown"); |
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} |
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gpr_mu_unlock(&s->mu); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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finish_shutdown(s); |
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} |
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} |
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void grpc_udp_server_destroy( |
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grpc_udp_server *s, void (*shutdown_complete)(void *shutdown_complete_arg), |
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void *shutdown_complete_arg) { |
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size_t i; |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->shutdown); |
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s->shutdown = 1; |
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s->shutdown_complete = shutdown_complete |
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? shutdown_complete |
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: dont_care_about_shutdown_completion; |
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s->shutdown_complete_arg = shutdown_complete_arg; |
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/* shutdown all fd's */ |
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if (s->active_ports) { |
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for (i = 0; i < s->nports; i++) { |
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grpc_fd_shutdown(s->ports[i].emfd); |
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} |
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gpr_mu_unlock(&s->mu); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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deactivated_all_ports(s); |
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} |
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} |
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/* Prepare a recently-created socket for listening. */ |
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static int prepare_socket(int fd, const struct sockaddr *addr, int addr_len) { |
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struct sockaddr_storage sockname_temp; |
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socklen_t sockname_len; |
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int get_local_ip; |
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int rc; |
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if (fd < 0) { |
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goto error; |
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} |
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get_local_ip = 1; |
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rc = setsockopt(fd, IPPROTO_IP, IP_PKTINFO, |
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&get_local_ip, sizeof(get_local_ip)); |
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if (rc == 0 && addr->sa_family == AF_INET6) { |
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rc = setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, |
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&get_local_ip, sizeof(get_local_ip)); |
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} |
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if (bind(fd, addr, addr_len) < 0) { |
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char *addr_str; |
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grpc_sockaddr_to_string(&addr_str, addr, 0); |
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gpr_log(GPR_ERROR, "bind addr=%s: %s", addr_str, strerror(errno)); |
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gpr_free(addr_str); |
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goto error; |
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} |
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sockname_len = sizeof(sockname_temp); |
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if (getsockname(fd, (struct sockaddr *)&sockname_temp, &sockname_len) < 0) { |
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goto error; |
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} |
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return grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); |
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error: |
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if (fd >= 0) { |
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close(fd); |
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} |
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return -1; |
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} |
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/* event manager callback when reads are ready */ |
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static void on_read(void *arg, int success) { |
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server_port *sp = arg; |
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if (success == 0) { |
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gpr_mu_lock(&sp->server->mu); |
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if (0 == --sp->server->active_ports) { |
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gpr_mu_unlock(&sp->server->mu); |
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deactivated_all_ports(sp->server); |
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} else { |
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gpr_mu_unlock(&sp->server->mu); |
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} |
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return; |
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} |
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/* Tell the registered callback that data is available to read. */ |
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GPR_ASSERT(sp->read_cb); |
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sp->read_cb(sp->fd, sp->server->cb, sp->server->cb_arg); |
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/* Re-arm the notification event so we get another chance to read. */ |
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grpc_fd_notify_on_read(sp->emfd, &sp->read_closure); |
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} |
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static int add_socket_to_server(grpc_udp_server *s, int fd, |
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const struct sockaddr *addr, int addr_len, |
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grpc_udp_server_read_cb read_cb) { |
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server_port *sp; |
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int port; |
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char *addr_str; |
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char *name; |
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port = prepare_socket(fd, addr, addr_len); |
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if (port >= 0) { |
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grpc_sockaddr_to_string(&addr_str, (struct sockaddr *)&addr, 1); |
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gpr_asprintf(&name, "udp-server-listener:%s", addr_str); |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->cb && "must add ports before starting server"); |
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/* append it to the list under a lock */ |
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if (s->nports == s->port_capacity) { |
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s->port_capacity *= 2; |
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s->ports = gpr_realloc(s->ports, sizeof(server_port) * s->port_capacity); |
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} |
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sp = &s->ports[s->nports++]; |
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sp->server = s; |
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sp->fd = fd; |
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sp->emfd = grpc_fd_create(fd, name); |
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memcpy(sp->addr.untyped, addr, addr_len); |
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sp->addr_len = addr_len; |
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sp->read_cb = read_cb; |
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GPR_ASSERT(sp->emfd); |
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gpr_mu_unlock(&s->mu); |
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} |
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return port; |
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} |
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int grpc_udp_server_add_port(grpc_udp_server *s, const void *addr, |
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int addr_len, grpc_udp_server_read_cb read_cb) { |
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int allocated_port1 = -1; |
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int allocated_port2 = -1; |
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unsigned i; |
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int fd; |
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grpc_dualstack_mode dsmode; |
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struct sockaddr_in6 addr6_v4mapped; |
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struct sockaddr_in wild4; |
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struct sockaddr_in6 wild6; |
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struct sockaddr_in addr4_copy; |
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struct sockaddr *allocated_addr = NULL; |
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struct sockaddr_storage sockname_temp; |
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socklen_t sockname_len; |
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int port; |
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if (((struct sockaddr *)addr)->sa_family == AF_UNIX) { |
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unlink_if_unix_domain_socket(addr); |
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} |
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/* Check if this is a wildcard port, and if so, try to keep the port the same
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as some previously created listener. */ |
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if (grpc_sockaddr_get_port(addr) == 0) { |
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for (i = 0; i < s->nports; i++) { |
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sockname_len = sizeof(sockname_temp); |
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if (0 == getsockname(s->ports[i].fd, (struct sockaddr *)&sockname_temp, |
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&sockname_len)) { |
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port = grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); |
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if (port > 0) { |
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allocated_addr = malloc(addr_len); |
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memcpy(allocated_addr, addr, addr_len); |
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grpc_sockaddr_set_port(allocated_addr, port); |
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addr = allocated_addr; |
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break; |
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} |
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} |
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} |
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} |
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if (grpc_sockaddr_to_v4mapped(addr, &addr6_v4mapped)) { |
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addr = (const struct sockaddr *)&addr6_v4mapped; |
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addr_len = sizeof(addr6_v4mapped); |
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} |
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/* Treat :: or 0.0.0.0 as a family-agnostic wildcard. */ |
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if (grpc_sockaddr_is_wildcard(addr, &port)) { |
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grpc_sockaddr_make_wildcards(port, &wild4, &wild6); |
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/* Try listening on IPv6 first. */ |
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addr = (struct sockaddr *)&wild6; |
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addr_len = sizeof(wild6); |
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fd = grpc_create_dualstack_socket(addr, SOCK_DGRAM, IPPROTO_UDP, &dsmode); |
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allocated_port1 = add_socket_to_server(s, fd, addr, addr_len, read_cb); |
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if (fd >= 0 && dsmode == GRPC_DSMODE_DUALSTACK) { |
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goto done; |
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} |
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/* If we didn't get a dualstack socket, also listen on 0.0.0.0. */ |
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if (port == 0 && allocated_port1 > 0) { |
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grpc_sockaddr_set_port((struct sockaddr *)&wild4, allocated_port1); |
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} |
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addr = (struct sockaddr *)&wild4; |
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addr_len = sizeof(wild4); |
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} |
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fd = grpc_create_dualstack_socket(addr, SOCK_DGRAM, IPPROTO_UDP, &dsmode); |
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if (fd < 0) { |
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gpr_log(GPR_ERROR, "Unable to create socket: %s", strerror(errno)); |
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} |
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if (dsmode == GRPC_DSMODE_IPV4 && |
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grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) { |
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addr = (struct sockaddr *)&addr4_copy; |
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addr_len = sizeof(addr4_copy); |
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} |
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allocated_port2 = add_socket_to_server(s, fd, addr, addr_len, read_cb); |
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done: |
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gpr_free(allocated_addr); |
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return allocated_port1 >= 0 ? allocated_port1 : allocated_port2; |
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} |
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int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned index) { |
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return (index < s->nports) ? s->ports[index].fd : -1; |
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} |
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void grpc_udp_server_start(grpc_udp_server *s, grpc_pollset **pollsets, |
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size_t pollset_count, |
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grpc_udp_server_cb new_transport_cb, void *cb_arg) { |
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size_t i, j; |
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GPR_ASSERT(new_transport_cb); |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->cb); |
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GPR_ASSERT(s->active_ports == 0); |
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s->cb = new_transport_cb; |
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s->cb_arg = cb_arg; |
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s->pollsets = pollsets; |
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for (i = 0; i < s->nports; i++) { |
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for (j = 0; j < pollset_count; j++) { |
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grpc_pollset_add_fd(pollsets[j], s->ports[i].emfd); |
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} |
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s->ports[i].read_closure.cb = on_read; |
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s->ports[i].read_closure.cb_arg = &s->ports[i]; |
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grpc_fd_notify_on_read(s->ports[i].emfd, &s->ports[i].read_closure); |
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s->active_ports++; |
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} |
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gpr_mu_unlock(&s->mu); |
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} |
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|
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/* TODO(rjshade): Add a test for this method. */ |
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void grpc_udp_server_write(server_port *sp, const char *buffer, size_t buf_len, |
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const struct sockaddr *peer_address) { |
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int rc; |
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rc = sendto(sp->fd, buffer, buf_len, 0, peer_address, sizeof(peer_address)); |
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if (rc < 0) { |
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gpr_log(GPR_ERROR, "Unable to send data: %s", strerror(errno)); |
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} |
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} |
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|
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#endif |
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@ -0,0 +1,85 @@ |
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/*
|
||||
* |
||||
* Copyright 2015, 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. |
||||
* |
||||
*/ |
||||
|
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#ifndef GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H |
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#define GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H |
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|
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#include "src/core/iomgr/endpoint.h" |
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|
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/* Forward decl of grpc_udp_server */ |
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typedef struct grpc_udp_server grpc_udp_server; |
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|
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/* New server callback: ep is the newly connected connection */ |
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typedef void (*grpc_udp_server_cb)(void *arg, grpc_endpoint *ep); |
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|
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/* Called when data is available to read from the socket. */ |
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typedef void (*grpc_udp_server_read_cb)(int fd, |
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grpc_udp_server_cb new_transport_cb, |
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void *cb_arg); |
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|
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/* Create a server, initially not bound to any ports */ |
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grpc_udp_server *grpc_udp_server_create(void); |
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|
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/* Start listening to bound ports */ |
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void grpc_udp_server_start(grpc_udp_server *server, grpc_pollset **pollsets, |
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size_t pollset_count, grpc_udp_server_cb cb, |
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void *cb_arg); |
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|
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int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned index); |
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|
||||
/* Add a port to the server, returning port number on success, or negative
|
||||
on failure. |
||||
|
||||
The :: and 0.0.0.0 wildcard addresses are treated identically, accepting |
||||
both IPv4 and IPv6 connections, but :: is the preferred style. This usually |
||||
creates one socket, but possibly two on systems which support IPv6, |
||||
but not dualstack sockets. */ |
||||
|
||||
/* TODO(ctiller): deprecate this, and make grpc_udp_server_add_ports to handle
|
||||
all of the multiple socket port matching logic in one place */ |
||||
int grpc_udp_server_add_port(grpc_udp_server *s, const void *addr, int addr_len, |
||||
grpc_udp_server_read_cb read_cb); |
||||
|
||||
void grpc_udp_server_destroy(grpc_udp_server *server, |
||||
void (*shutdown_done)(void *shutdown_done_arg), |
||||
void *shutdown_done_arg); |
||||
|
||||
/* Write the contents of buffer to the underlying UDP socket. */ |
||||
/*
|
||||
void grpc_udp_server_write(grpc_udp_server *s, |
||||
const char *buffer, |
||||
int buf_len, |
||||
const struct sockaddr* to); |
||||
*/ |
||||
|
||||
#endif /* GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H */ |
||||
@ -0,0 +1,178 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, 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/udp_server.h" |
||||
#include "src/core/iomgr/iomgr.h" |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/sync.h> |
||||
#include <grpc/support/time.h> |
||||
#include "test/core/util/test_config.h" |
||||
|
||||
#include <sys/socket.h> |
||||
#include <netinet/in.h> |
||||
#include <string.h> |
||||
#include <unistd.h> |
||||
|
||||
#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", #x) |
||||
|
||||
static grpc_pollset g_pollset; |
||||
static int g_number_of_reads = 0; |
||||
static int g_number_of_bytes_read = 0; |
||||
|
||||
static void on_connect(void *arg, grpc_endpoint *udp) { |
||||
} |
||||
|
||||
static void on_read(int fd, grpc_udp_server_cb new_transport_cb, void *cb_arg) { |
||||
char read_buffer[512]; |
||||
int byte_count; |
||||
|
||||
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); |
||||
byte_count = recv(fd, read_buffer, sizeof(read_buffer), 0); |
||||
|
||||
g_number_of_reads++; |
||||
g_number_of_bytes_read += byte_count; |
||||
|
||||
grpc_pollset_kick(&g_pollset, NULL); |
||||
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); |
||||
} |
||||
|
||||
static void test_no_op(void) { |
||||
grpc_udp_server *s = grpc_udp_server_create(); |
||||
grpc_udp_server_destroy(s, NULL, NULL); |
||||
} |
||||
|
||||
static void test_no_op_with_start(void) { |
||||
grpc_udp_server *s = grpc_udp_server_create(); |
||||
LOG_TEST("test_no_op_with_start"); |
||||
grpc_udp_server_start(s, NULL, 0, on_connect, NULL); |
||||
grpc_udp_server_destroy(s, NULL, NULL); |
||||
} |
||||
|
||||
static void test_no_op_with_port(void) { |
||||
struct sockaddr_in addr; |
||||
grpc_udp_server *s = grpc_udp_server_create(); |
||||
LOG_TEST("test_no_op_with_port"); |
||||
|
||||
memset(&addr, 0, sizeof(addr)); |
||||
addr.sin_family = AF_INET; |
||||
GPR_ASSERT(grpc_udp_server_add_port(s, (struct sockaddr *)&addr, sizeof(addr), |
||||
on_read)); |
||||
|
||||
grpc_udp_server_destroy(s, NULL, NULL); |
||||
} |
||||
|
||||
static void test_no_op_with_port_and_start(void) { |
||||
struct sockaddr_in addr; |
||||
grpc_udp_server *s = grpc_udp_server_create(); |
||||
LOG_TEST("test_no_op_with_port_and_start"); |
||||
|
||||
memset(&addr, 0, sizeof(addr)); |
||||
addr.sin_family = AF_INET; |
||||
GPR_ASSERT(grpc_udp_server_add_port(s, (struct sockaddr *)&addr, sizeof(addr), |
||||
on_read)); |
||||
|
||||
grpc_udp_server_start(s, NULL, 0, on_connect, NULL); |
||||
|
||||
grpc_udp_server_destroy(s, NULL, NULL); |
||||
} |
||||
|
||||
static void test_receive(int number_of_clients) { |
||||
struct sockaddr_storage addr; |
||||
socklen_t addr_len = sizeof(addr); |
||||
int clifd, svrfd; |
||||
grpc_udp_server *s = grpc_udp_server_create(); |
||||
int i; |
||||
int number_of_reads_before; |
||||
gpr_timespec deadline; |
||||
grpc_pollset *pollsets[1]; |
||||
LOG_TEST("test_receive"); |
||||
gpr_log(GPR_INFO, "clients=%d", number_of_clients); |
||||
|
||||
g_number_of_bytes_read = 0; |
||||
|
||||
memset(&addr, 0, sizeof(addr)); |
||||
addr.ss_family = AF_INET; |
||||
GPR_ASSERT(grpc_udp_server_add_port(s, (struct sockaddr *)&addr, addr_len, on_read)); |
||||
|
||||
svrfd = grpc_udp_server_get_fd(s, 0); |
||||
GPR_ASSERT(svrfd >= 0); |
||||
GPR_ASSERT(getsockname(svrfd, (struct sockaddr *)&addr, &addr_len) == 0); |
||||
GPR_ASSERT(addr_len <= sizeof(addr)); |
||||
|
||||
pollsets[0] = &g_pollset; |
||||
grpc_udp_server_start(s, pollsets, 1, on_connect, NULL); |
||||
|
||||
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset)); |
||||
|
||||
for (i = 0; i < number_of_clients; i++) { |
||||
deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(4000); |
||||
|
||||
number_of_reads_before = g_number_of_reads; |
||||
/* Create a socket, send a packet to the UDP server. */ |
||||
clifd = socket(addr.ss_family, SOCK_DGRAM, 0); |
||||
GPR_ASSERT(clifd >= 0); |
||||
GPR_ASSERT(connect(clifd, (struct sockaddr *)&addr, addr_len) == 0); |
||||
GPR_ASSERT(5 == write(clifd, "hello", 5)); |
||||
while (g_number_of_reads == number_of_reads_before && |
||||
gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) { |
||||
grpc_pollset_worker worker; |
||||
grpc_pollset_work(&g_pollset, &worker, deadline); |
||||
} |
||||
GPR_ASSERT(g_number_of_reads == number_of_reads_before + 1); |
||||
close(clifd); |
||||
} |
||||
GPR_ASSERT(g_number_of_bytes_read == 5 * number_of_clients); |
||||
|
||||
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset)); |
||||
|
||||
grpc_udp_server_destroy(s, NULL, NULL); |
||||
} |
||||
|
||||
static void destroy_pollset(void *p) { grpc_pollset_destroy(p); } |
||||
|
||||
int main(int argc, char **argv) { |
||||
grpc_test_init(argc, argv); |
||||
grpc_iomgr_init(); |
||||
grpc_pollset_init(&g_pollset); |
||||
|
||||
test_no_op(); |
||||
test_no_op_with_start(); |
||||
test_no_op_with_port(); |
||||
test_no_op_with_port_and_start(); |
||||
test_receive(1); |
||||
test_receive(10); |
||||
|
||||
grpc_pollset_shutdown(&g_pollset, destroy_pollset, &g_pollset); |
||||
grpc_iomgr_shutdown(); |
||||
return 0; |
||||
} |
||||
Loading…
Reference in new issue