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Overview
| Comment: | Remove the call to srand() and add better comments to the sqliteOsRandomSeed() routine. Ticket #163. (CVS 759) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | d87a886d8f63f54466848151e2b0e856 |
| User & Date: | drh 2002-10-12 13:44:00 |
Context
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2002-10-17
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| 00:38 | fix for locking in Windows (CVS 760) check-in: 83add34f user: mike tags: trunk | |
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2002-10-12
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| 13:44 | Remove the call to srand() and add better comments to the sqliteOsRandomSeed() routine. Ticket #163. (CVS 759) check-in: d87a886d user: drh tags: trunk | |
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2002-09-30
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| 12:36 | Fix a bug in the left outer join logic. (CVS 758) check-in: 6c0f44bd user: drh tags: trunk | |
Changes
Changes to src/os.c.
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id->locked = 0;
}
return rc;
#endif
}
/*
** Get information to seed the random number generator.
*/
int sqliteOsRandomSeed(char *zBuf){
static int once = 1;
#ifdef SQLITE_TEST
/* When testing, always use the same random number sequence.
** This makes the tests repeatable.
*/
memset(zBuf, 0, 256);
#endif
#if OS_UNIX && !defined(SQLITE_TEST)
................................................................................
time((time_t*)zBuf);
pid = getpid();
memcpy(&zBuf[sizeof(time_t)], &pid, sizeof(pid));
#endif
#if OS_WIN && !defined(SQLITE_TEST)
GetSystemTime((LPSYSTEMTIME)zBuf);
#endif
if( once ){
int seed;
memcpy(&seed, zBuf, sizeof(seed));
srand(seed);
once = 0;
}
return SQLITE_OK;
}
/*
** Sleep for a little while. Return the amount of time slept.
*/
int sqliteOsSleep(int ms){
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id->locked = 0;
}
return rc;
#endif
}
/*
** Get information to seed the random number generator. The seed
** is written into the buffer zBuf[256]. The calling function must
** supply a sufficiently large buffer.
*/
int sqliteOsRandomSeed(char *zBuf){
#ifdef SQLITE_TEST
/* When testing, always use the same random number sequence.
** This makes the tests repeatable.
*/
memset(zBuf, 0, 256);
#endif
#if OS_UNIX && !defined(SQLITE_TEST)
................................................................................
time((time_t*)zBuf);
pid = getpid();
memcpy(&zBuf[sizeof(time_t)], &pid, sizeof(pid));
#endif
#if OS_WIN && !defined(SQLITE_TEST)
GetSystemTime((LPSYSTEMTIME)zBuf);
#endif
return SQLITE_OK;
}
/*
** Sleep for a little while. Return the amount of time slept.
*/
int sqliteOsSleep(int ms){
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