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Test a server with multiple ports

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pull/4745/head
Dan Born 9 years ago
parent 50ef3042a1
commit 601acadc91
1 changed files with 127 additions and 50 deletions
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  1. 177
      test/core/iomgr/tcp_server_posix_test.c

177
test/core/iomgr/tcp_server_posix_test.c
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@ -33,11 +33,13 @@
#include "src/core/iomgr/tcp_server.h"
#include "src/core/iomgr/iomgr.h"
#include "src/core/iomgr/sockaddr_utils.h"
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/time.h>
#include "test/core/util/test_config.h"
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
@ -48,18 +50,23 @@
static grpc_pollset g_pollset;
static int g_nconnects = 0;
struct on_connect_result {
typedef struct on_connect_result {
unsigned port_index;
unsigned fd_index;
int server_fd;
};
} on_connect_result;
static on_connect_result g_result = {0, 0, -1};
static void on_connect(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp,
grpc_tcp_server_acceptor *acceptor) {
struct on_connect_result *result = arg;
grpc_endpoint_shutdown(exec_ctx, tcp);
grpc_endpoint_destroy(exec_ctx, tcp);
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
result->server_fd = grpc_tcp_server_port_fd(
g_result.port_index = acceptor->port_index;
g_result.fd_index = acceptor->fd_index;
g_result.server_fd = grpc_tcp_server_port_fd(
acceptor->from_server, acceptor->port_index, acceptor->fd_index);
g_nconnects++;
grpc_pollset_kick(&g_pollset, NULL);
@ -114,68 +121,138 @@ static void test_no_op_with_port_and_start(void) {
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_connect(int n) {
static void tcp_connect(grpc_exec_ctx *exec_ctx, const struct sockaddr *remote,
socklen_t remote_len, on_connect_result *result) {
gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
int clifd = socket(remote->sa_family, SOCK_STREAM, 0);
int nconnects_before;
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
nconnects_before = g_nconnects;
g_result.server_fd = -1;
GPR_ASSERT(clifd >= 0);
gpr_log(GPR_DEBUG, "start connect");
GPR_ASSERT(connect(clifd, remote, remote_len) == 0);
gpr_log(GPR_DEBUG, "wait");
while (g_nconnects == nconnects_before &&
gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) {
grpc_pollset_worker worker;
grpc_pollset_work(exec_ctx, &g_pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC), deadline);
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
grpc_exec_ctx_finish(exec_ctx);
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
}
gpr_log(GPR_DEBUG, "wait done");
GPR_ASSERT(g_nconnects == nconnects_before + 1);
close(clifd);
*result = g_result;
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
}
/* grpc_tcp_server_add_port() will not pick a second port randomly. We must find
one by binding one randomly, closing the socket, and returning the port
number. This might fail because of races. */
static int unused_port() {
int s = socket(AF_INET, SOCK_STREAM, 0);
struct sockaddr_storage addr;
socklen_t addr_len = sizeof(addr);
GPR_ASSERT(s >= 0);
memset(&addr, 0, sizeof(addr));
addr.ss_family = AF_INET;
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
gpr_log(GPR_ERROR, "bind: %s", strerror(errno));
abort();
}
GPR_ASSERT(getsockname(s, (struct sockaddr *)&addr, &addr_len) == 0);
GPR_ASSERT(addr_len <= sizeof(addr));
close(s);
return ntohs(((struct sockaddr_in *)&addr)->sin_port);
}
/* Tests a tcp server with multiple ports. TODO(daniel-j-born): Multiple fds for
the same port should be tested. */
static void test_connect(unsigned n) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
struct sockaddr_storage addr;
struct sockaddr_storage addr1;
socklen_t addr_len = sizeof(addr);
int svrfd, clifd;
unsigned svr_fd_count;
int svr_port;
unsigned svr1_fd_count;
int svr1_port;
grpc_tcp_server *s = grpc_tcp_server_create(NULL);
int nconnects_before;
gpr_timespec deadline;
grpc_pollset *pollsets[1];
int i;
struct on_connect_result result;
unsigned i;
LOG_TEST("test_connect");
gpr_log(GPR_INFO, "clients=%d", n);
memset(&addr, 0, sizeof(addr));
addr.ss_family = AF_INET;
GPR_ASSERT(grpc_tcp_server_add_port(s, (struct sockaddr *)&addr, addr_len) >
0);
memset(&addr1, 0, sizeof(addr1));
addr.ss_family = addr1.ss_family = AF_INET;
svr_port = grpc_tcp_server_add_port(s, (struct sockaddr *)&addr, addr_len);
GPR_ASSERT(svr_port > 0);
svr1_port = unused_port();
grpc_sockaddr_set_port((struct sockaddr *)&addr1, svr1_port);
GPR_ASSERT(grpc_tcp_server_add_port(s, (struct sockaddr *)&addr1, addr_len) ==
svr1_port);
/* Bad port_index. */
GPR_ASSERT(grpc_tcp_server_port_fd_count(s, 2) == 0);
GPR_ASSERT(grpc_tcp_server_port_fd_count(s, 1) == 0);
GPR_ASSERT(grpc_tcp_server_port_fd_count(s, 0) == 1);
GPR_ASSERT(grpc_tcp_server_port_fd(s, 0, 1) < 0);
GPR_ASSERT(grpc_tcp_server_port_fd(s, 0, 2) < 0);
GPR_ASSERT(grpc_tcp_server_port_fd(s, 2, 0) < 0);
GPR_ASSERT(grpc_tcp_server_port_fd(s, 1, 0) < 0);
svrfd = grpc_tcp_server_port_fd(s, 0, 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_tcp_server_start(&exec_ctx, s, pollsets, 1, on_connect, &result);
/* 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);
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
/* 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);
for (i = 0; i < n; i++) {
deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
nconnects_before = g_nconnects;
result.server_fd = -1;
clifd = socket(addr.ss_family, SOCK_STREAM, 0);
GPR_ASSERT(clifd >= 0);
gpr_log(GPR_DEBUG, "start connect");
GPR_ASSERT(connect(clifd, (struct sockaddr *)&addr, addr_len) == 0);
gpr_log(GPR_DEBUG, "wait");
while (g_nconnects == nconnects_before &&
gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) {
grpc_pollset_worker worker;
grpc_pollset_work(&exec_ctx, &g_pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC), deadline);
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
for (i = 0; i < svr_fd_count; ++i) {
int fd = grpc_tcp_server_port_fd(s, 0, i);
GPR_ASSERT(fd >= 0);
if (i == 0) {
GPR_ASSERT(getsockname(fd, (struct sockaddr *)&addr, &addr_len) == 0);
GPR_ASSERT(addr_len <= sizeof(addr));
}
}
for (i = 0; i < svr1_fd_count; ++i) {
int fd = grpc_tcp_server_port_fd(s, 1, i);
GPR_ASSERT(fd >= 0);
if (i == 0) {
GPR_ASSERT(getsockname(fd, (struct sockaddr *)&addr1, &addr_len) == 0);
GPR_ASSERT(addr_len <= sizeof(addr1));
}
gpr_log(GPR_DEBUG, "wait done");
GPR_ASSERT(g_nconnects == nconnects_before + 1);
close(clifd);
GPR_ASSERT(svrfd == result.server_fd);
}
gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
pollsets[0] = &g_pollset;
grpc_tcp_server_start(&exec_ctx, s, pollsets, 1, on_connect, NULL);
for (i = 0; i < n; i++) {
on_connect_result result = {0, 0, -1};
int svr_fd;
tcp_connect(&exec_ctx, (struct sockaddr *)&addr, addr_len, &result);
GPR_ASSERT(result.server_fd >= 0);
svr_fd = result.server_fd;
GPR_ASSERT(grpc_tcp_server_port_fd(s, result.port_index, result.fd_index)
== result.server_fd);
GPR_ASSERT(result.port_index == 0);
GPR_ASSERT(result.fd_index < svr_fd_count);
result.port_index = 0;
result.fd_index = 0;
result.server_fd = -1;
tcp_connect(&exec_ctx, (struct sockaddr *)&addr1, addr_len, &result);
GPR_ASSERT(result.server_fd >= 0);
GPR_ASSERT(result.server_fd != svr_fd);
GPR_ASSERT(grpc_tcp_server_port_fd(s, result.port_index, result.fd_index)
== result.server_fd);
GPR_ASSERT(result.port_index == 1);
GPR_ASSERT(result.fd_index < svr_fd_count);
}
grpc_tcp_server_unref(&exec_ctx, s);
grpc_exec_ctx_finish(&exec_ctx);

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