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Overview
| Comment: | A couple simple fixes to get wal.test mostly working. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | wal-refactor |
| Files: | files | file ages | folders |
| SHA1: |
c74458127468f30b16715594c8d68e9d |
| User & Date: | drh 2010-05-12 18:10:52 |
Context
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2010-05-12
| ||
| 18:30 | Fix for the test_devsym.c test module for the VFS-SHM refactoring. (check-in: 49d62933 user: drh tags: wal-refactor) | |
| 18:10 | A couple simple fixes to get wal.test mostly working. (check-in: c7445812 user: drh tags: wal-refactor) | |
| 18:01 | Refactoring the VFS-SHM methods used by WAL. This version compiles and runs non-WAL test cases but crashes and burns on wal.test. (check-in: 2b00152c user: drh tags: wal-refactor) | |
Changes
Changes to src/wal.c.
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*/
static int walSetLock(Wal *pWal, int desiredStatus){
int rc = SQLITE_OK; /* Return code */
if( pWal->exclusiveMode || pWal->lockState==desiredStatus ){
pWal->lockState = desiredStatus;
}else{
int got = pWal->lockState;
rc = sqlite3OsShmLock(pWal->pWalFd, desiredStatus, &got);
pWal->lockState = got;
if( got==SQLITE_SHM_READ_FULL || got==SQLITE_SHM_READ ){
pWal->readerType = got;
pWal->lockState = SQLITE_SHM_READ;
}
}
return rc;
................................................................................
int nWal; /* Length of zWal in bytes */
assert( zDbName && zDbName[0] );
assert( pDbFd );
/* Allocate an instance of struct Wal to return. */
*ppWal = 0;
nWal = sqlite3Strlen30(zWal) + 5;
pRet = (Wal*)sqlite3MallocZero(sizeof(Wal) + pVfs->szOsFile + nWal);
if( !pRet ){
return SQLITE_NOMEM;
}
pRet->pVfs = pVfs;
pRet->pWalFd = (sqlite3_file *)&pRet[1];
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*/
static int walSetLock(Wal *pWal, int desiredStatus){
int rc = SQLITE_OK; /* Return code */
if( pWal->exclusiveMode || pWal->lockState==desiredStatus ){
pWal->lockState = desiredStatus;
}else{
int got = pWal->lockState;
rc = sqlite3OsShmLock(pWal->pDbFd, desiredStatus, &got);
pWal->lockState = got;
if( got==SQLITE_SHM_READ_FULL || got==SQLITE_SHM_READ ){
pWal->readerType = got;
pWal->lockState = SQLITE_SHM_READ;
}
}
return rc;
................................................................................
int nWal; /* Length of zWal in bytes */
assert( zDbName && zDbName[0] );
assert( pDbFd );
/* Allocate an instance of struct Wal to return. */
*ppWal = 0;
nWal = sqlite3Strlen30(zDbName) + 5;
pRet = (Wal*)sqlite3MallocZero(sizeof(Wal) + pVfs->szOsFile + nWal);
if( !pRet ){
return SQLITE_NOMEM;
}
pRet->pVfs = pVfs;
pRet->pWalFd = (sqlite3_file *)&pRet[1];
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