1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/*
*
* 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"
#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;
GPR_ASSERT(
GRPC_LOG_IF_ERROR("pollset_kick", 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 is orphaned once in *
* deactivated_all_ports, and once in grpc_udp_server_destroy. */
GPR_ASSERT(g_number_of_orphan_calls == 2);
}
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;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
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 is orphaned once in *
* deactivated_all_ports, and once in grpc_udp_server_destroy. */
GPR_ASSERT(g_number_of_orphan_calls == 2);
}
static void destroy_pollset(grpc_exec_ctx *exec_ctx, void *p,
grpc_error *error) {
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;
}
|
