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Overview
| Comment: | Enhance a debugging log message to better identify a mutex. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | debug |
| Files: | files | file ages | folders |
| SHA1: |
e60cb6d8852ebf42659c7f2e86a1f6a2 |
| User & Date: | dan 2016-07-29 14:31:30 |
Context
|
2016-07-29
| ||
| 16:32 | Turn memory status off by default. check-in: ea3c7162 user: drh tags: debug | |
| 14:31 | Enhance a debugging log message to better identify a mutex. check-in: e60cb6d8 user: dan tags: debug | |
| 14:23 | Use __sync_synchronous(), when available, instead of a mutex when a memory barrier is needed. check-in: 7d4562e9 user: drh tags: debug | |
Changes
Changes to src/mutex_unix.c.
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#if SQLITE_MUTEX_NREF
assert( p->nRef>0 || p->owner==0 );
p->owner = pthread_self();
p->nRef++;
#endif
iTimer = sqlite3Hwtime() - iTimer;
if( iTimer>100000 ){
sqlite3_log(SQLITE_NOTICE, "slow mutex: %lld cycles on %d/%p",
iTimer, MUTEX_ID(p), p);
}
#endif
#ifdef SQLITE_DEBUG
if( p->trace ){
printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
}
|
> > > > > | |
251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 |
#if SQLITE_MUTEX_NREF
assert( p->nRef>0 || p->owner==0 );
p->owner = pthread_self();
p->nRef++;
#endif
iTimer = sqlite3Hwtime() - iTimer;
if( iTimer>100000 ){
sqlite3_mutex *pMaster = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER);
int id = -1;
if( p>=pMaster && p<=&pMaster[SQLITE_MUTEX_STATIC_APP3-2] ){
id = (int)(p - pMaster) + 2;
}
sqlite3_log(SQLITE_NOTICE, "slow mutex: %lld cycles on %d/%p",
iTimer, id, p);
}
#endif
#ifdef SQLITE_DEBUG
if( p->trace ){
printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
}
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