Arthur de Jong

Open Source / Free Software developer

summaryrefslogtreecommitdiffstats
path: root/tests/test_tio.c
blob: 0e2a3e881b2590cc08738f1fc5165c38e33ccf75 (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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
/*
   test_tio.c - simple test for the tio module
   This file is part of the nss-pam-ldapd library.

   Copyright (C) 2007, 2008 Arthur de Jong

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301 USA
*/

#include "config.h"

#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <pthread.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif /* HAVE_STDINT_H */
#include <stdlib.h>
#include <errno.h>

#include "common/tio.h"

#ifndef __ASSERT_FUNCTION
#define __ASSERT_FUNCTION ""
#endif /* not __ASSERT_FUNCTION */

#define assertok(expr) \
  ((expr) \
   ? (void) (0) \
   : __assertok_fail(__STRING(expr),__FILE__,__LINE__,__ASSERT_FUNCTION))

static void __assertok_fail(const char *expr,const char *file,
                          int line,const char *function)
{
  char msg[120];
  snprintf(msg,sizeof(msg),"%s (errno=\"%s\")",expr,strerror(errno));
  __assert_fail(msg,file,line,function);
}

/* structure for passing arguments to helper (is a thread) */
struct helper_args {
  int fd;
  size_t blocksize;
  size_t blocks;
  int timeout;
};

static void *help_tiowriter(void *arg)
{
  TFILE *fp;
  struct timeval timeout;
  size_t i,j,k;
  uint8_t *buf;
  struct helper_args *hargs=(struct helper_args *)arg;
  /* allocate the buffer */
  buf=(uint8_t *)malloc(hargs->blocksize);
  assert(buf!=NULL);
  /* set the timeout */
  timeout.tv_sec=hargs->timeout;
  timeout.tv_usec=0;
  /* open the file */
  fp=tio_fdopen(hargs->fd,&timeout,&timeout,4*1024,8*1024,4*1024,8*1024);
  assertok(fp!=NULL);
  /* write the blocks */
  i=0;
  for (k=0;k<hargs->blocks;k++)
  {
    /* fill the buffer */
    for (j=0;j<hargs->blocksize;j++)
      buf[j]=i++;
    assertok(tio_write(fp,buf,hargs->blocksize)==0);
  }
  /* close the file flushing the buffer */
  assertok(tio_close(fp)==0);
  /* we're done */
  free(buf);
  return NULL;
}

static void *help_tioreader(void *arg)
{
  TFILE *fp;
  struct timeval timeout;
  size_t i,j,k;
  uint8_t *buf;
  struct helper_args *hargs=(struct helper_args *)arg;
  /* allocate the buffer */
  buf=(uint8_t *)malloc(hargs->blocksize);
  assert(buf!=NULL);
  /* set the timeout */
  timeout.tv_sec=hargs->timeout;
  timeout.tv_usec=0;
  /* open the file */
  fp=tio_fdopen(hargs->fd,&timeout,&timeout,4*1024,8*1024,4*1024,8*1024);
  assertok(fp!=NULL);
  /* read the blocks */
  i=0;
  for (k=0;k<hargs->blocks;k++)
  {
    assertok(tio_read(fp,buf,hargs->blocksize)==0);
    /* check the buffer */
    for (j=0;j<hargs->blocksize;j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* close the file */
  assertok(tio_close(fp)==0);
  /* we're done */
  free(buf);
  return NULL;
}

static void *help_normwriter(void *arg)
{
  FILE *fp;
  size_t i,j,k;
  uint8_t *buf;
  struct helper_args *hargs=(struct helper_args *)arg;
  /* allocate the buffer */
  buf=(uint8_t *)malloc(hargs->blocksize);
  assert(buf!=NULL);
  /* open the file */
  fp=fdopen(hargs->fd,"wb");
  assertok(fp!=NULL);
  /* write the blocks */
  i=0;
  for (k=0;k<hargs->blocks;k++)
  {
    /* fill the buffer */
    for (j=0;j<hargs->blocksize;j++)
      buf[j]=i++;
    assertok(fwrite(buf,hargs->blocksize,1,fp)==1);
  }
  /* close the file flushing the buffer */
  assertok(fclose(fp)==0);
  /* we're done */
  free(buf);
  return NULL;
}

static void *help_normreader(void *arg)
{
  FILE *fp;
  size_t i,j,k;
  struct helper_args *hargs=(struct helper_args *)arg;
  /* open the file */
  fp=fdopen(hargs->fd,"rb");
  assertok(fp!=NULL);
  /* read the blocks */
  i=0;
  for (k=0;k<hargs->blocks;k++)
  {
    /* check the buffer */
    for (j=0;j<hargs->blocksize;j++)
      assertok(fgetc(fp)==(uint8_t)(i++));
  }
  /* close the file */
  assertok(fclose(fp)==0);
  return NULL;
}

/*
TODO: test timeout
TODO: test whether a simple request/response works
*/

static int test_blocks(size_t wbs, size_t wbl, size_t rbs, size_t rbl)
{
  int sp[2];
  pthread_t wthread, rthread;
  struct helper_args wargs,rargs;
  /* set up the socket pair */
  assertok(socketpair(AF_UNIX,SOCK_STREAM,0,sp)==0);
  /* log */
  printf("test_tio: writing %d blocks of %d bytes (%d total)\n",wbl,wbs,wbl*wbs);
  printf("test_tio: reading %d blocks of %d bytes (%d total)\n",rbl,rbs,rbl*rbs);
  /* start the writer thread */
  wargs.fd=sp[0];
  wargs.blocksize=wbs;
  wargs.blocks=wbl;
  wargs.timeout=2;
  assertok(pthread_create(&wthread,NULL,help_tiowriter,&wargs)==0);
/*  sleep(1); */
  /* start the reader thread */
  rargs.fd=sp[1];
  rargs.blocksize=rbs;
  rargs.blocks=rbl;
  rargs.timeout=2;
  assertok(pthread_create(&rthread,NULL,help_tioreader,&rargs)==0);
  /* wait for all threads to die */
  assertok(pthread_join(wthread,NULL)==0);
  assertok(pthread_join(rthread,NULL)==0);
  /* we're done */
  return 0;
}

static void test_reset(void)
{
  int sp[2];
  pthread_t wthread;
  struct helper_args wargs;
  TFILE *fp;
  struct timeval timeout;
  size_t i,j,k,save;
  uint8_t buf[20];
  /* set up the socket pair */
  assertok(socketpair(AF_UNIX,SOCK_STREAM,0,sp)==0);
  /* start the writer thread */
  wargs.fd=sp[0];
  wargs.blocksize=4*1024;
  wargs.blocks=10;
  wargs.timeout=2;
  assertok(pthread_create(&wthread,NULL,help_normwriter,&wargs)==0);
  /* set up read handle */
  timeout.tv_sec=2;
  timeout.tv_usec=0;
  fp=tio_fdopen(sp[1],&timeout,&timeout,2*1024,4*1024,2*1024,4*1024);
  assertok(fp!=NULL);
  /* perform 20 reads */
  i=0;
  for (k=0;k<20;k++)
  {
    assertok(tio_read(fp,buf,sizeof(buf))==0);
    /* check the buffer */
    for (j=0;j<sizeof(buf);j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* mark and perform another 2 reads */
  tio_mark(fp);
  save=i;
  for (k=20;k<22;k++)
  {
    assertok(tio_read(fp,buf,sizeof(buf))==0);
    /* check the buffer */
    for (j=0;j<sizeof(buf);j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* check that we can reset */
  assertok(tio_reset(fp)==0);
  /* perform 204 reads (partially the same as before) */
  i=save;
  for (k=20;k<224;k++)
  {
    assert(tio_read(fp,buf,sizeof(buf))==0);
    /* check the buffer */
    for (j=0;j<sizeof(buf);j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* check that we can reset */
  assertok(tio_reset(fp)==0);
  /* perform 502 reads (partially the same) */
  i=save;
  for (k=20;k<522;k++)
  {
    assert(tio_read(fp,buf,sizeof(buf))==0);
    /* check the buffer */
    for (j=0;j<sizeof(buf);j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* check that reset is no longer possible */
  assertok(tio_reset(fp)!=0);
  /* read the remainder of the data 1526 reads */
  for (k=522;k<2048;k++)
  {
    assertok(tio_read(fp,buf,sizeof(buf))==0);
    /* check the buffer */
    for (j=0;j<sizeof(buf);j++)
      assert(buf[j]==(uint8_t)(i++));
  }
  /* close the file */
  assertok(tio_close(fp)==0);
  /* wait for the writer thread to die */
  assertok(pthread_join(wthread,NULL)==0);
}

/* the main program... */
int main(int UNUSED(argc),char UNUSED(*argv[]))
{
  /* normal read-writes */
  test_blocks(400,11,11,400);
  test_blocks(10*1024,11,10*11,1024);
  test_blocks(5*1023,20,20*1023,5);
  /* reader closes file sooner */
/*  test_blocks(2*6*1023,20,20*1023,5); */
/*  test_blocks(10,10,10,9); */
  /* writer closes file sooner */
/*  test_blocks(4*1023,20,20*1023,5); */
/*  test_blocks(10,9,10,10); */
  /* set tio_mark() and tio_reset() functions */
  test_reset();
  return 0;
}