summaryrefslogtreecommitdiff
path: root/source4/lib/tdb/tools/tdbtorture.c
blob: 0cf82fa5a52a996b141d06869afc12efa4ecb5f7 (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
/* this tests tdb by doing lots of ops from several simultaneous
   writers - that stresses the locking code. Build with TDB_DEBUG=1
   for best effect */

#ifndef _SAMBA_BUILD_
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include "tdb.h"

#else

#include "includes.h"
#include "lib/tdb/include/tdb.h"
#include "system/time.h"
#include "system/wait.h"
#include "system/filesys.h"

#endif

#define REOPEN_PROB 30
#define DELETE_PROB 8
#define STORE_PROB 4
#define APPEND_PROB 6
#define LOCKSTORE_PROB 0
#define TRAVERSE_PROB 20
#define CULL_PROB 100
#define KEYLEN 3
#define DATALEN 100
#define LOCKLEN 20

static struct tdb_context *db;

#ifdef PRINTF_ATTRIBUTE
static void tdb_log(struct tdb_context *tdb, int level, const char *format, ...) PRINTF_ATTRIBUTE(3,4);
#endif
static void tdb_log(struct tdb_context *tdb, int level, const char *format, ...)
{
	va_list ap;
    
	va_start(ap, format);
	vfprintf(stdout, format, ap);
	va_end(ap);
	fflush(stdout);
#if 0
	{
		char *ptr;
		asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
		system(ptr);
		free(ptr);
	}
#endif	
}

static void fatal(const char *why)
{
	perror(why);
	exit(1);
}

static char *randbuf(int len)
{
	char *buf;
	int i;
	buf = (char *)malloc(len+1);

	for (i=0;i<len;i++) {
		buf[i] = 'a' + (rand() % 26);
	}
	buf[i] = 0;
	return buf;
}

static int cull_traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
			 void *state)
{
	if (random() % CULL_PROB == 0) {
		tdb_delete(tdb, key);
	}
	return 0;
}

static void addrec_db(void)
{
	int klen, dlen, slen;
	char *k, *d, *s;
	TDB_DATA key, data, lockkey;

	klen = 1 + (rand() % KEYLEN);
	dlen = 1 + (rand() % DATALEN);
	slen = 1 + (rand() % LOCKLEN);

	k = randbuf(klen);
	d = randbuf(dlen);
	s = randbuf(slen);

	key.dptr = (unsigned char *)k;
	key.dsize = klen+1;

	data.dptr = (unsigned char *)d;
	data.dsize = dlen+1;

	lockkey.dptr = (unsigned char *)s;
	lockkey.dsize = slen+1;

#if REOPEN_PROB
	if (random() % REOPEN_PROB == 0) {
		tdb_reopen_all();
		goto next;
	} 
#endif

#if DELETE_PROB
	if (random() % DELETE_PROB == 0) {
		tdb_delete(db, key);
		goto next;
	}
#endif

#if STORE_PROB
	if (random() % STORE_PROB == 0) {
		if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
			fatal("tdb_store failed");
		}
		goto next;
	}
#endif

#if APPEND_PROB
	if (random() % APPEND_PROB == 0) {
		if (tdb_append(db, key, data) != 0) {
			fatal("tdb_append failed");
		}
		goto next;
	}
#endif

#if LOCKSTORE_PROB
	if (random() % LOCKSTORE_PROB == 0) {
		tdb_chainlock(db, lockkey);
		data = tdb_fetch(db, key);
		if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
			fatal("tdb_store failed");
		}
		if (data.dptr) free(data.dptr);
		tdb_chainunlock(db, lockkey);
		goto next;
	} 
#endif

#if TRAVERSE_PROB
	if (random() % TRAVERSE_PROB == 0) {
		tdb_traverse(db, cull_traverse, NULL);
		goto next;
	}
#endif

	data = tdb_fetch(db, key);
	if (data.dptr) free(data.dptr);

next:
	free(k);
	free(d);
	free(s);
}

static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
                       void *state)
{
	tdb_delete(tdb, key);
	return 0;
}

#ifndef NPROC
#define NPROC 2
#endif

#ifndef NLOOPS
#define NLOOPS 5000
#endif

 int main(int argc, const char *argv[])
{
	int i, seed=0;
	int loops = NLOOPS;
	pid_t pids[NPROC];

	pids[0] = getpid();

	unlink("torture.tdb");

	for (i=0;i<NPROC-1;i++) {
		if ((pids[i+1]=fork()) == 0) break;
	}

	db = tdb_open("torture.tdb", 2, TDB_CLEAR_IF_FIRST, 
		      O_RDWR | O_CREAT, 0600);
	if (!db) {
		fatal("db open failed");
	}
	tdb_logging_function(db, tdb_log);

	srand(seed + getpid());
	srandom(seed + getpid() + time(NULL));
	for (i=0;i<loops;i++) addrec_db();

	tdb_traverse(db, NULL, NULL);
	tdb_traverse(db, traverse_fn, NULL);
	tdb_traverse(db, traverse_fn, NULL);

	tdb_close(db);

	if (getpid() == pids[0]) {
		for (i=0;i<NPROC-1;i++) {
			int status;
			if (waitpid(pids[i+1], &status, 0) != pids[i+1]) {
				printf("failed to wait for %d\n",
				       (int)pids[i+1]);
				exit(1);
			}
			if (WEXITSTATUS(status) != 0) {
				printf("child %d exited with status %d\n",
				       (int)pids[i+1], WEXITSTATUS(status));
				exit(1);
			}
		}
		printf("OK\n");
	}

	return 0;
}