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Overview
| Comment: | An SQLITE_PROTOCOL error counts as a locking error for verification purposes. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
e87d499a4f8a456111c1f96ca6da31d0 |
| User & Date: | drh 2011-02-19 23:18:12 |
Context
|
2011-02-21
| ||
| 11:46 | Have os_unix.c call sqlite3_log() following errors in certain system calls. check-in: 01076528 user: dan tags: trunk | |
|
2011-02-19
| ||
| 23:18 | An SQLITE_PROTOCOL error counts as a locking error for verification purposes. check-in: e87d499a user: drh tags: trunk | |
| 17:02 | Change a testcase() added by the previous checkin into an assert(). check-in: 6f3dad32 user: drh tags: trunk | |
Changes
Changes to src/wal.c.
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 |
** is more of a scheduler yield than an actual delay. But on the 10th
** an subsequent retries, the delays start becoming longer and longer,
** so that on the 100th (and last) RETRY we delay for 21 milliseconds.
** The total delay time before giving up is less than 1 second.
*/
if( cnt>5 ){
int nDelay = 1; /* Pause time in microseconds */
if( cnt>100 ) return SQLITE_PROTOCOL;
if( cnt>=10 ) nDelay = (cnt-9)*238; /* Max delay 21ms. Total delay 996ms */
sqlite3OsSleep(pWal->pVfs, nDelay);
}
if( !useWal ){
rc = walIndexReadHdr(pWal, pChanged);
if( rc==SQLITE_BUSY ){
|
> > | > |
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 |
** is more of a scheduler yield than an actual delay. But on the 10th
** an subsequent retries, the delays start becoming longer and longer,
** so that on the 100th (and last) RETRY we delay for 21 milliseconds.
** The total delay time before giving up is less than 1 second.
*/
if( cnt>5 ){
int nDelay = 1; /* Pause time in microseconds */
if( cnt>100 ){
VVA_ONLY( pWal->lockError = 1; )
return SQLITE_PROTOCOL;
}
if( cnt>=10 ) nDelay = (cnt-9)*238; /* Max delay 21ms. Total delay 996ms */
sqlite3OsSleep(pWal->pVfs, nDelay);
}
if( !useWal ){
rc = walIndexReadHdr(pWal, pChanged);
if( rc==SQLITE_BUSY ){
|