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Overview
| Comment: | Minor enhancement to two assert() statements in the default VFSes. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
9cede8a83ca4cd88d504050115e1e89e |
| User & Date: | drh 2017-12-13 10:11:09 |
Context
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2017-12-13
| ||
| 14:22 | Add script to amalgamate all LSM files into "lsm1.c". (check-in: e32b69d7 user: dan tags: trunk) | |
| 10:11 | Minor enhancement to two assert() statements in the default VFSes. (check-in: 9cede8a8 user: drh tags: trunk) | |
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2017-12-11
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| 17:20 | Fix a buffer overwrite in fts5 that could occur when processing a prefix query. (check-in: 92fc146b user: dan tags: trunk) | |
Changes
Changes to src/os_unix.c.
4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 |
){
unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
struct flock f; /* The posix advisory locking structure */
int rc = SQLITE_OK; /* Result code form fcntl() */
/* Access to the unixShmNode object is serialized by the caller */
pShmNode = pFile->pInode->pShmNode;
assert( sqlite3_mutex_held(pShmNode->mutex) || pShmNode->nRef==0 );
/* Shared locks never span more than one byte */
assert( n==1 || lockType!=F_RDLCK );
/* Locks are within range */
assert( n>=1 && n<=SQLITE_SHM_NLOCK );
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| |
4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 |
){
unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
struct flock f; /* The posix advisory locking structure */
int rc = SQLITE_OK; /* Result code form fcntl() */
/* Access to the unixShmNode object is serialized by the caller */
pShmNode = pFile->pInode->pShmNode;
assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->mutex) );
/* Shared locks never span more than one byte */
assert( n==1 || lockType!=F_RDLCK );
/* Locks are within range */
assert( n>=1 && n<=SQLITE_SHM_NLOCK );
|
Changes to src/os_win.c.
3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 |
int lockType, /* WINSHM_UNLCK, WINSHM_RDLCK, or WINSHM_WRLCK */
int ofst, /* Offset to first byte to be locked/unlocked */
int nByte /* Number of bytes to lock or unlock */
){
int rc = 0; /* Result code form Lock/UnlockFileEx() */
/* Access to the winShmNode object is serialized by the caller */
assert( sqlite3_mutex_held(pFile->mutex) || pFile->nRef==0 );
OSTRACE(("SHM-LOCK file=%p, lock=%d, offset=%d, size=%d\n",
pFile->hFile.h, lockType, ofst, nByte));
/* Release/Acquire the system-level lock */
if( lockType==WINSHM_UNLCK ){
rc = winUnlockFile(&pFile->hFile.h, ofst, 0, nByte, 0);
|
| |
3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 |
int lockType, /* WINSHM_UNLCK, WINSHM_RDLCK, or WINSHM_WRLCK */
int ofst, /* Offset to first byte to be locked/unlocked */
int nByte /* Number of bytes to lock or unlock */
){
int rc = 0; /* Result code form Lock/UnlockFileEx() */
/* Access to the winShmNode object is serialized by the caller */
assert( pFile->nRef==0 || sqlite3_mutex_held(pFile->mutex) );
OSTRACE(("SHM-LOCK file=%p, lock=%d, offset=%d, size=%d\n",
pFile->hFile.h, lockType, ofst, nByte));
/* Release/Acquire the system-level lock */
if( lockType==WINSHM_UNLCK ){
rc = winUnlockFile(&pFile->hFile.h, ofst, 0, nByte, 0);
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