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Overview
| Comment: | Avoid calling sqlite3OsFetch() on a file-handle for which the xFetch method is NULL. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | ota-update |
| Files: | files | file ages | folders |
| SHA1: |
071f7f2decd2f786c0201a4219e9c2cc |
| User & Date: | dan 2014-09-04 11:03:35 |
Context
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2014-09-04
| ||
| 18:05 | Fix showwal.c so that it works with 64KiB pages. (check-in: fc4f7c11 user: dan tags: ota-update) | |
| 11:03 | Avoid calling sqlite3OsFetch() on a file-handle for which the xFetch method is NULL. (check-in: 071f7f2d user: dan tags: ota-update) | |
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2014-09-03
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| 19:30 | Split part of "PRAGMA ota_mode" off into "PRAGMA pager_ota_mode". This allows some specialized custom VFS implementations to intercept and implement the expected pager-related effects of this pragma. (check-in: 209f672e user: dan tags: ota-update) | |
Changes
Changes to ext/ota/ota.c.
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" and the program exits. Subsequent invocations of this (or any other OTA)\n"
" application will use this state to resume applying the OTA update to the\n"
" target db.\n"
"\n"
, zArgv0);
exit(1);
}
int main(int argc, char **argv){
int i;
const char *zTarget; /* Target database to apply OTA to */
const char *zOta; /* Database containing OTA */
char *zErrmsg; /* Error message, if any */
sqlite3ota *pOta; /* OTA handle */
................................................................................
if( nArg1>5 || nArg1<2 || memcmp("-step", argv[1], nArg1) ) usage(argv[0]);
nStep = atoi(argv[2]);
}else if( argc!=3 ){
usage(argv[0]);
}
zTarget = argv[argc-2];
zOta = argv[argc-1];
/* Open an OTA handle. If nStep is less than or equal to zero, call
** sqlite3ota_step() until either the OTA has been completely applied
** or an error occurs. Or, if nStep is greater than zero, call
** sqlite3ota_step() a maximum of nStep times. */
pOta = sqlite3ota_open(zTarget, zOta);
for(i=0; (nStep<=0 || i<nStep) && sqlite3ota_step(pOta)==SQLITE_OK; i++);
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" and the program exits. Subsequent invocations of this (or any other OTA)\n" " application will use this state to resume applying the OTA update to the\n" " target db.\n" "\n" , zArgv0); exit(1); } void report_default_vfs(){ sqlite3_vfs *pVfs = sqlite3_vfs_find(0); fprintf(stdout, "using vfs \"%s\"\n", pVfs->zName); } int main(int argc, char **argv){ int i; const char *zTarget; /* Target database to apply OTA to */ const char *zOta; /* Database containing OTA */ char *zErrmsg; /* Error message, if any */ sqlite3ota *pOta; /* OTA handle */ ................................................................................ if( nArg1>5 || nArg1<2 || memcmp("-step", argv[1], nArg1) ) usage(argv[0]); nStep = atoi(argv[2]); }else if( argc!=3 ){ usage(argv[0]); } zTarget = argv[argc-2]; zOta = argv[argc-1]; report_default_vfs(); /* Open an OTA handle. If nStep is less than or equal to zero, call ** sqlite3ota_step() until either the OTA has been completely applied ** or an error occurs. Or, if nStep is greater than zero, call ** sqlite3ota_step() a maximum of nStep times. */ pOta = sqlite3ota_open(zTarget, zOta); for(i=0; (nStep<=0 || i<nStep) && sqlite3ota_step(pOta)==SQLITE_OK; i++); |
Changes to src/vdbesort.c.
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** mmap), return SQLITE_OK and set *pp to NULL.
**
** Or, if an error occurs, return an SQLite error code. The final value of
** *pp is undefined in this case.
*/
static int vdbeSorterMapFile(SortSubtask *pTask, SorterFile *pFile, u8 **pp){
int rc = SQLITE_OK;
if( pFile->iEof<=(i64)(pTask->pSorter->db->nMaxSorterMmap) ){
rc = sqlite3OsFetch(pFile->pFd, 0, (int)pFile->iEof, (void**)pp);
testcase( rc!=SQLITE_OK );
}
return rc;
}
/*
................................................................................
**
** Whether or not the file does end up memory mapped of course depends on
** the specific VFS implementation.
*/
static void vdbeSorterExtendFile(sqlite3 *db, sqlite3_file *pFd, i64 nByte){
if( nByte<=(i64)(db->nMaxSorterMmap) ){
int rc = sqlite3OsTruncate(pFd, nByte);
if( rc==SQLITE_OK ){
void *p = 0;
sqlite3OsFetch(pFd, 0, (int)nByte, &p);
sqlite3OsUnfetch(pFd, 0, p);
}
}
}
#else
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** mmap), return SQLITE_OK and set *pp to NULL.
**
** Or, if an error occurs, return an SQLite error code. The final value of
** *pp is undefined in this case.
*/
static int vdbeSorterMapFile(SortSubtask *pTask, SorterFile *pFile, u8 **pp){
int rc = SQLITE_OK;
if( pFile->iEof<=(i64)(pTask->pSorter->db->nMaxSorterMmap)
&& pFile->pFd->pMethods->xFetch
){
rc = sqlite3OsFetch(pFile->pFd, 0, (int)pFile->iEof, (void**)pp);
testcase( rc!=SQLITE_OK );
}
return rc;
}
/*
................................................................................
**
** Whether or not the file does end up memory mapped of course depends on
** the specific VFS implementation.
*/
static void vdbeSorterExtendFile(sqlite3 *db, sqlite3_file *pFd, i64 nByte){
if( nByte<=(i64)(db->nMaxSorterMmap) ){
int rc = sqlite3OsTruncate(pFd, nByte);
if( rc==SQLITE_OK && pFd->pMethods->xFetch ){
void *p = 0;
sqlite3OsFetch(pFd, 0, (int)nByte, &p);
sqlite3OsUnfetch(pFd, 0, p);
}
}
}
#else
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