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Overview
| Comment: | Bug fix in the sqliteOsLock() and sqliteOsUnlock() routines of POSIX. Version 2.1.5. (CVS 325) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
669454060867593290c1ce8c45bd87d0 |
| User & Date: | drh 2001-12-06 13:24:15 |
Context
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2001-12-06
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| 13:30 | Version 2.1.5 (CVS 456) check-in: 8e90ad55 user: drh tags: trunk | |
| 13:24 | Bug fix in the sqliteOsLock() and sqliteOsUnlock() routines of POSIX. Version 2.1.5. (CVS 325) check-in: 66945406 user: drh tags: trunk | |
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2001-12-05
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| 01:00 | Version 2.1.4 (CVS 457) check-in: 121c522e user: drh tags: trunk | |
Changes
Changes to VERSION.
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2.1.4
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1 |
2.1.5
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Changes to src/os.c.
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rc = SQLITE_BUSY;
}else{
rc = SQLITE_OK;
needSysLock = id.pLock->cnt==0;
id.pLock->cnt++;
}
}
sqliteOsLeaveMutex();
if( rc==SQLITE_OK && needSysLock ){
struct flock lock;
lock.l_type = wrlock ? F_WRLCK : F_RDLCK;
lock.l_whence = SEEK_SET;
lock.l_start = lock.l_len = 0L;
rc = fcntl(id.fd, F_SETLK, &lock)==0 ? SQLITE_OK : SQLITE_BUSY;
}
return rc;
#endif
#if OS_WIN
if( !LockFile(id, 0, 0, 1024, 0) ){
return SQLITE_BUSY;
}
return SQLITE_OK;
................................................................................
}else if( id.pLock->cnt>0 ){
id.pLock->cnt--;
needSysUnlock = id.pLock->cnt==0;
}else{
rc = SQLITE_OK;
needSysUnlock = 0;
}
sqliteOsLeaveMutex();
if( needSysUnlock ){
struct flock lock;
lock.l_type = F_UNLCK;
lock.l_whence = SEEK_SET;
lock.l_start = lock.l_len = 0L;
rc = fcntl(id.fd, F_SETLK, &lock)==0 ? SQLITE_OK : SQLITE_IOERR;
}
return rc;
#endif
#if OS_WIN
return UnlockFile(id, 0, 0, 1024, 0) ? SQLITE_OK : SQLITE_IOERR;
#endif
}
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rc = SQLITE_BUSY;
}else{
rc = SQLITE_OK;
needSysLock = id.pLock->cnt==0;
id.pLock->cnt++;
}
}
if( rc==SQLITE_OK && needSysLock ){
struct flock lock;
lock.l_type = wrlock ? F_WRLCK : F_RDLCK;
lock.l_whence = SEEK_SET;
lock.l_start = lock.l_len = 0L;
rc = fcntl(id.fd, F_SETLK, &lock)==0 ? SQLITE_OK : SQLITE_BUSY;
if( rc ){
id.pLock->cnt = 0;
}
}
sqliteOsLeaveMutex();
return rc;
#endif
#if OS_WIN
if( !LockFile(id, 0, 0, 1024, 0) ){
return SQLITE_BUSY;
}
return SQLITE_OK;
................................................................................
}else if( id.pLock->cnt>0 ){
id.pLock->cnt--;
needSysUnlock = id.pLock->cnt==0;
}else{
rc = SQLITE_OK;
needSysUnlock = 0;
}
if( needSysUnlock ){
struct flock lock;
lock.l_type = F_UNLCK;
lock.l_whence = SEEK_SET;
lock.l_start = lock.l_len = 0L;
rc = fcntl(id.fd, F_SETLK, &lock)==0 ? SQLITE_OK : SQLITE_IOERR;
}
sqliteOsLeaveMutex();
return rc;
#endif
#if OS_WIN
return UnlockFile(id, 0, 0, 1024, 0) ? SQLITE_OK : SQLITE_IOERR;
#endif
}
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Changes to www/changes.tcl.
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}
proc chng {date desc} {
puts "<DT><B>$date</B></DT>"
puts "<DD><P><UL>$desc</UL></P></DD>"
}
chng {2001 Dec 4 (2.1.4)} {
<li>Sometimes <b>sqlite_exec()</b> would return SQLITE_PROTOCOL when it
should have returned SQLITE_BUSY.</li>
<li>The fix to the previous bug uncovered a deadlock which was also
fixed.</li>
<li>Add the ability to put a single .command in the second argument
|
> > > > > > > |
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}
proc chng {date desc} {
puts "<DT><B>$date</B></DT>"
puts "<DD><P><UL>$desc</UL></P></DD>"
}
chng {2001 Dec 6 (2.1.5)} {
<li>Fix for another problem (unrelated to the one fixed in 2.1.4)
that sometimes causes <b>sqlite_exec()</b> to return SQLITE_PROTOCOL
unnecessarily. This time the bug was
in the POSIX locking code and should not effect windows users.</li>
}
chng {2001 Dec 4 (2.1.4)} {
<li>Sometimes <b>sqlite_exec()</b> would return SQLITE_PROTOCOL when it
should have returned SQLITE_BUSY.</li>
<li>The fix to the previous bug uncovered a deadlock which was also
fixed.</li>
<li>Add the ability to put a single .command in the second argument
|