summaryrefslogtreecommitdiffstats
path: root/nsprpub/pr/tests/pipeself.c
blob: 7066c58d1c759e9bbeb1b1abfa01321cf27ea098 (plain)
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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * File: pipeself.c
 *
 * Description:
 * This test has two threads communicating with each other using
 * two unidirectional pipes.  The primordial thread is the ping
 * thread and the other thread is the pong thread.  The ping
 * thread writes "ping" to the pong thread and the pong thread
 * writes "pong" back.
 */

#include "prio.h"
#include "prerror.h"
#include "prthread.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define NUM_ITERATIONS 10

static PRFileDesc *ping_in, *ping_out;
static PRFileDesc *pong_in, *pong_out;

static void PongThreadFunc(void *arg)
{
    char buf[1024];
    int idx;
    PRInt32 nBytes;
    PRStatus status;

    for (idx = 0; idx < NUM_ITERATIONS; idx++) {
        memset(buf, 0, sizeof(buf));
        nBytes = PR_Read(pong_in, buf, sizeof(buf));
        if (nBytes == -1) {
            fprintf(stderr, "PR_Read failed\n");
            exit(1);
        }
        printf("pong thread: received \"%s\"\n", buf);
        if (nBytes != 5) {
            fprintf(stderr, "pong thread: expected 5 bytes but got %d bytes\n",
                    nBytes);
            exit(1);
        }
        if (strcmp(buf, "ping") != 0) {
            fprintf(stderr, "pong thread: expected \"ping\" but got \"%s\"\n",
                    buf);
            exit(1);
        }
        strcpy(buf, "pong");
        printf("pong thread: sending \"%s\"\n", buf);
        nBytes = PR_Write(pong_out, buf, 5);
        if (nBytes == -1) {
            fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
                    PR_GetOSError());
            exit(1);
        }
    }

    status = PR_Close(pong_in);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    status = PR_Close(pong_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
}

int main(int argc, char **argv)
{
    PRStatus status;
    PRThread *pongThread;
    char buf[1024];
    PRInt32 nBytes;
    int idx;

    status = PR_CreatePipe(&ping_in, &pong_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_CreatePipe failed\n");
        exit(1);
    }
    status = PR_CreatePipe(&pong_in, &ping_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_CreatePipe failed\n");
        exit(1);
    }

    pongThread = PR_CreateThread(PR_USER_THREAD, PongThreadFunc, NULL,
                                 PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
    if (pongThread == NULL) {
        fprintf(stderr, "PR_CreateThread failed\n");
        exit(1);
    }

    for (idx = 0; idx < NUM_ITERATIONS; idx++) {
        strcpy(buf, "ping");
        printf("ping thread: sending \"%s\"\n", buf);
        nBytes = PR_Write(ping_out, buf, 5);
        if (nBytes == -1) {
            fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
                    PR_GetOSError());
            exit(1);
        }
        memset(buf, 0, sizeof(buf));
        nBytes = PR_Read(ping_in, buf, sizeof(buf));
        if (nBytes == -1) {
            fprintf(stderr, "PR_Read failed\n");
            exit(1);
        }
        printf("ping thread: received \"%s\"\n", buf);
        if (nBytes != 5) {
            fprintf(stderr, "ping thread: expected 5 bytes but got %d bytes\n",
                    nBytes);
            exit(1);
        }
        if (strcmp(buf, "pong") != 0) {
            fprintf(stderr, "ping thread: expected \"pong\" but got \"%s\"\n",
                    buf);
            exit(1);
        }
    }

    status = PR_Close(ping_in);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    status = PR_Close(ping_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    status = PR_JoinThread(pongThread);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_JoinThread failed\n");
        exit(1);
    }

#if defined(XP_UNIX)
    /*
     * Test PR_Available for pipes
     */
    status = PR_CreatePipe(&ping_in, &ping_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_CreatePipe failed\n");
        exit(1);
    }
    nBytes = PR_Write(ping_out, buf, 250);
    if (nBytes == -1) {
        fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
                PR_GetOSError());
        exit(1);
    }
    nBytes = PR_Available(ping_in);
    if (nBytes < 0) {
        fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
                PR_GetOSError());
        exit(1);
    } else if (nBytes != 250) {
        fprintf(stderr, "PR_Available: expected 250 bytes but got %d bytes\n",
                nBytes);
        exit(1);
    }
    printf("PR_Available: expected %d, got %d bytes\n",250, nBytes);
    /* read some data */
    nBytes = PR_Read(ping_in, buf, 7);
    if (nBytes == -1) {
        fprintf(stderr, "PR_Read failed\n");
        exit(1);
    }
    /* check available data */
    nBytes = PR_Available(ping_in);
    if (nBytes < 0) {
        fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
                PR_GetOSError());
        exit(1);
    } else if (nBytes != (250 - 7)) {
        fprintf(stderr, "PR_Available: expected 243 bytes but got %d bytes\n",
                nBytes);
        exit(1);
    }
    printf("PR_Available: expected %d, got %d bytes\n",243, nBytes);
    /* read all data */
    nBytes = PR_Read(ping_in, buf, sizeof(buf));
    if (nBytes == -1) {
        fprintf(stderr, "PR_Read failed\n");
        exit(1);
    } else if (nBytes != 243) {
        fprintf(stderr, "PR_Read failed: expected %d, got %d bytes\n",
                243, nBytes);
        exit(1);
    }
    /* check available data */
    nBytes = PR_Available(ping_in);
    if (nBytes < 0) {
        fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
                PR_GetOSError());
        exit(1);
    } else if (nBytes != 0) {
        fprintf(stderr, "PR_Available: expected 0 bytes but got %d bytes\n",
                nBytes);
        exit(1);
    }
    printf("PR_Available: expected %d, got %d bytes\n", 0, nBytes);

    status = PR_Close(ping_in);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    status = PR_Close(ping_out);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
#endif /* XP_UNIX */

    printf("PASS\n");
    return 0;
}