Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Add testcase macros to verify that all return values from walTryBeginRead() are tested. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
262b6fca0b7a251c02604c684a9f7e7a |
| User & Date: | drh 2011-02-19 16:51:45 |
Context
|
2011-02-19
| ||
| 17:02 | Change a testcase() added by the previous checkin into an assert(). (check-in: 6f3dad32 user: drh tags: trunk) | |
| 16:51 | Add testcase macros to verify that all return values from walTryBeginRead() are tested. (check-in: 262b6fca user: drh tags: trunk) | |
| 15:22 | Changes to make WAL more robust against SQLITE_PROTOCOL errors. (check-in: fd578a32 user: drh tags: trunk) | |
Changes
Changes to src/wal.c.
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
....
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
|
int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){
int rc; /* Return code */
int cnt = 0; /* Number of TryBeginRead attempts */
do{
rc = walTryBeginRead(pWal, pChanged, 0, ++cnt);
}while( rc==WAL_RETRY );
return rc;
}
/*
** Finish with a read transaction. All this does is release the
** read-lock.
*/
................................................................................
walUnlockShared(pWal, WAL_READ_LOCK(0));
pWal->readLock = -1;
cnt = 0;
do{
int notUsed;
rc = walTryBeginRead(pWal, ¬Used, 1, ++cnt);
}while( rc==WAL_RETRY );
}
return rc;
}
/*
** Write a set of frames to the log. The caller must hold the write-lock
** on the log file (obtained using sqlite3WalBeginWriteTransaction()).
|
>
>
>
>
>
>
>
>
|
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
....
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
|
int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){
int rc; /* Return code */
int cnt = 0; /* Number of TryBeginRead attempts */
do{
rc = walTryBeginRead(pWal, pChanged, 0, ++cnt);
}while( rc==WAL_RETRY );
testcase( (rc&0xff)==SQLITE_BUSY );
testcase( (rc&0xff)==SQLITE_IOERR );
testcase( rc==SQLITE_PROTOCOL );
testcase( rc==SQLITE_OK );
return rc;
}
/*
** Finish with a read transaction. All this does is release the
** read-lock.
*/
................................................................................
walUnlockShared(pWal, WAL_READ_LOCK(0));
pWal->readLock = -1;
cnt = 0;
do{
int notUsed;
rc = walTryBeginRead(pWal, ¬Used, 1, ++cnt);
}while( rc==WAL_RETRY );
testcase( (rc&0xff)==SQLITE_BUSY );
testcase( (rc&0xff)==SQLITE_IOERR );
testcase( rc==SQLITE_PROTOCOL );
testcase( rc==SQLITE_OK );
}
return rc;
}
/*
** Write a set of frames to the log. The caller must hold the write-lock
** on the log file (obtained using sqlite3WalBeginWriteTransaction()).
|