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
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2001-2021. All Rights Reserved.
*
* 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.
*
* %CopyrightEnd%
*/
/* to test multiple threads in ei */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef __WIN32__
#include <winsock2.h>
#include <windows.h>
#include <process.h>
#else
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include "ei.h"
#include "my_ussi.h"
#define MAIN main
/*
A small einode.
To be called from the test case ei_accept_SUITE:multi_thread
usage: eiaccnode <cookie> <n> <default|ussi>
- start threads 0..n-1
- in each thread
- listen on "ei0" .. "ei<n-1>"
- wait for connection
- receive a pid
- send {i, <pid>} back
- shutdown gracefully
*/
static const char* cookie;
static int use_ussi;
#ifndef SD_SEND
#ifdef SHUTWR
#define SD_SEND SHUT_WR
#else
#define SD_SEND 1
#endif
#endif
#ifdef __WIN32__
static DWORD WINAPI
#else
static void*
#endif
einode_thread(void* num)
{
int n = (int)(long)num;
int port;
ei_cnode ec;
char myname[100], destname[100], filename[100];
int r, fd, listen;
ErlConnect conn;
erlang_msg msg;
FILE* file;
sprintf(filename, "eiacc%d_trace.txt", n);
file = fopen(filename, "a");
sprintf(myname, "eiacc%d", n); fflush(file);
fprintf(file, "---- use_ussi = %d ----\n", use_ussi); fflush(file);
if (use_ussi)
r = ei_connect_init_ussi(&ec, myname, cookie, 0,
&my_ussi, sizeof(my_ussi), NULL);
else
r = ei_connect_init(&ec, myname, cookie, 0);
fprintf(file, "r=%d\n", r); fflush(file);
port = 0;
listen = ei_listen(&ec, &port, 5);
if (listen <= 0) {
fprintf(file, "listen err\n"); fflush(file);
exit(7);
}
fprintf(file, "thread %d (%s:%s) listening on port %d\n", n, myname, destname, port); fflush(file);
r = ei_publish(&ec, port);
fprintf(file, "r=%d\n", r); fflush(file);
if (r == -1) {
fprintf(file, "ei_publish port %d\n", port+n); fflush(file);
exit(8);
}
fd = ei_accept(&ec, listen, &conn);
fprintf(file, "ei_accept %d\n", fd); fflush(file);
if (fd >= 0) {
ei_x_buff x, xs;
int index, version;
erlang_pid pid;
ei_x_new(&x);
for (;;) {
int got = ei_xreceive_msg(fd, &msg, &x);
if (got == ERL_TICK)
continue;
if (got == ERL_ERROR) {
fprintf(file, "receive error %d\n", n); fflush(file);
return 0;
}
fprintf(file, "received %d\n", got); fflush(file);
break;
}
index = 0;
if (ei_decode_version(x.buff, &index, &version) != 0) {
fprintf(file, "ei_decode_version %d\n", n); fflush(file);
return 0;
}
if (ei_decode_pid(x.buff, &index, &pid) != 0) {
fprintf(file, "ei_decode_pid %d\n", n); fflush(file);
return 0;
}
fprintf(file, "got pid from %s \n", pid.node); fflush(file);
ei_x_new_with_version(&xs);
ei_x_encode_tuple_header(&xs, 2);
ei_x_encode_long(&xs, n);
ei_x_encode_pid(&xs, &pid);
r = ei_send(fd, &pid, xs.buff, xs.index);
fprintf(file, "sent %d bytes %d\n", xs.index, r); fflush(file);
shutdown(fd, SD_SEND);
ei_close_connection(fd);
ei_x_free(&x);
ei_x_free(&xs);
} else {
fprintf(file, "couldn't connect fd %d r %d\n", fd, r); fflush(file);
}
ei_close_connection(listen);
fprintf(file, "done thread %d\n", n);
fclose(file);
return 0;
}
int
MAIN(int argc, char *argv[])
{
int i, n, no_threads;
#ifdef __WIN32__
HANDLE threads[100];
#else
pthread_t threads[100];
#endif
if (argc < 4)
exit(1);
cookie = argv[1];
n = atoi(argv[2]);
if (n > 100)
exit(2);
if (strcmp(argv[3], "default") == 0)
use_ussi = 0;
else if (strcmp(argv[3], "ussi") == 0)
use_ussi = 1;
else
printf("bad argv[3] '%s'", argv[3]);
if (argc == 4)
no_threads = 0;
else
no_threads = argv[4] != NULL && strcmp(argv[4], "nothreads") == 0;
ei_init();
for (i = 0; i < n; ++i) {
if (!no_threads) {
#ifdef __WIN32__
unsigned tid;
threads[i] = (HANDLE)_beginthreadex(NULL, 0, einode_thread,
(void*)(size_t)i, 0, &tid);
#else
pthread_create(&threads[i], NULL, einode_thread, (void*)(size_t)i);
#endif
} else
einode_thread((void*)(size_t)i);
}
if (!no_threads)
for (i = 0; i < n; ++i) {
#ifdef __WIN32__
if (WaitForSingleObject(threads[i], INFINITE) != WAIT_OBJECT_0)
#else
if (pthread_join(threads[i], NULL) != 0)
#endif
printf("bad wait thread %d\n", i);
}
printf("ok\n");
return 0;
}
|
