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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.
*
*/
#include "src/core/lib/iomgr/udp_server.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/sync.h>
#include <grpc/support/time.h>
#include "src/core/lib/iomgr/ev_posix.h"
#include "src/core/lib/iomgr/iomgr.h"
#include "test/core/util/test_config.h"
#ifdef GRPC_NEED_UDP
#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", #x)
static grpc_pollset *g_pollset;
static gpr_mu *g_mu;
static int g_number_of_reads = 0;
static int g_number_of_bytes_read = 0;
static int g_number_of_orphan_calls = 0;
static void on_read(grpc_exec_ctx *exec_ctx, grpc_fd *emfd,
grpc_server *server) {
char read_buffer[512];
ssize_t byte_count;
gpr_mu_lock(g_mu);
byte_count =
recv(grpc_fd_wrapped_fd(emfd), read_buffer, sizeof(read_buffer), 0);
g_number_of_reads++;
g_number_of_bytes_read += (int)byte_count;
grpc_pollset_kick(g_pollset, NULL);
gpr_mu_unlock(g_mu);
}
static void on_fd_orphaned(grpc_fd *emfd) {
gpr_log(GPR_INFO, "gRPC FD about to be orphaned: %d",
grpc_fd_wrapped_fd(emfd));
g_number_of_orphan_calls++;
}
static void test_no_op(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_udp_server *s = grpc_udp_server_create();
grpc_udp_server_destroy(&exec_ctx, s, NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_no_op_with_start(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_udp_server *s = grpc_udp_server_create();
LOG_TEST("test_no_op_with_start");
grpc_udp_server_start(&exec_ctx, s, NULL, 0, NULL);
grpc_udp_server_destroy(&exec_ctx, s, NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_no_op_with_port(void) {
g_number_of_orphan_calls = 0;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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, on_fd_orphaned));
grpc_udp_server_destroy(&exec_ctx, s, NULL);
grpc_exec_ctx_finish(&exec_ctx);
/* The server had a single FD, which should have been orphaned. */
GPR_ASSERT(g_number_of_orphan_calls == 1);
}
static void test_no_op_with_port_and_start(void) {
g_number_of_orphan_calls = 0;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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, on_fd_orphaned));
grpc_udp_server_start(&exec_ctx, s, NULL, 0, NULL);
grpc_udp_server_destroy(&exec_ctx, s, NULL);
grpc_exec_ctx_finish(&exec_ctx);
/* The server had a single FD, which should have been orphaned. */
GPR_ASSERT(g_number_of_orphan_calls == 1);
}
static void test_receive(int number_of_clients) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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;
g_number_of_orphan_calls = 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, on_fd_orphaned));
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(&exec_ctx, s, pollsets, 1, NULL);
gpr_mu_lock(g_mu);
for (i = 0; i < number_of_clients; i++) {
deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
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 = NULL;
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_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(g_mu);
grpc_udp_server_destroy(&exec_ctx, s, NULL);
grpc_exec_ctx_finish(&exec_ctx);
/* The server had a single FD, which should have been orphaned. */
GPR_ASSERT(g_number_of_orphan_calls == 1);
}
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 = 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_receive(1);
test_receive(10);
grpc_closure_init(&destroyed, destroy_pollset, g_pollset);
grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed);
grpc_exec_ctx_finish(&exec_ctx);
gpr_free(g_pollset);
grpc_iomgr_shutdown();
return 0;
}
#else
int main(int argc, char **argv) { return 0; }
#endif
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