database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-14 00:22:38 +03:00
Code Activity

Merge the nx-devkit changes into trunk.

Browse Source 
FossilOrigin-Name: cf3bccc2e944cd2dd3efb8554682994a06115f16
This commit is contained in:
drh
2011-12-16 13:42:03 +00:00
parent 14ec1ffecf 8c24a369a5
commit b654ee20fe
5 changed files with 229 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
manifest
View File

@@ -1,5 +1,5 @@
C Add\sstdio\ssupport\sto\sthe\squota\sVFS.
D 2011-12-15T17:44:33.259
C Merge\sthe\snx-devkit\schanges\sinto\strunk.
D 2011-12-16T13:42:03.408
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -214,7 +214,7 @@ F src/test_intarray.h 489edb9068bb926583445cb02589344961054207
F src/test_journal.c 03313c693cca72959dcaaf79f8d76f21c01e19ff
F src/test_loadext.c df586c27176e3c2cb2e099c78da67bf14379a56e
F src/test_malloc.c 8d416f29ad8573f32601f6056c9d2b17472e9ad5
F src/test_multiplex.c 80677a47c75ca6a035d1ac66fb59186ffd4cdd19
F src/test_multiplex.c 6e07b94e2fe430f7f4f0d7d67b5e58f504dea655
F src/test_multiplex.h e99c571bc4968b7a9363b661481f3934bfead61d
F src/test_mutex.c a6bd7b9cf6e19d989e31392b06ac8d189f0d573e
F src/test_onefile.c 40cf9e212a377a6511469384a64b01e6e34b2eec
@@ -238,13 +238,13 @@ F src/tokenize.c c819d9f72168a035d545a5bdafe9b085b20df705
F src/trigger.c ee7e178fb9188f44b532cebd449a7c1df90fb684
F src/update.c d3076782c887c10e882996550345da9c4c9f9dea
F src/utf.c 890c67dcfcc7a74623c95baac7535aadfe265e84
F src/util.c 01238e2b0f24a14779181dbf991fe02620a80e31
F src/util.c 343508d359df65685b62e63964a40e7af4cfbe05
F src/vacuum.c 0c0ba2242355c6048d65e2b333abe0f7c06348fa
F src/vdbe.c 029add0c5197a61db588824a58570547330b9d8f
F src/vdbe.h 18f581cac1f4339ec3299f3e0cc6e11aec654cdb
F src/vdbeInt.h 48c158b2fceca9682d1577e61c62da3c58cf0748
F src/vdbeapi.c 86189ebba2c49791d75eaa12929f3ce6527596bd
F src/vdbeaux.c 61a3cc2b3a713aa244598a13035471cc30b307e1
F src/vdbeaux.c 4a96cddec7c8cc33f98da703c1baf2a654b50cab
F src/vdbeblob.c 32f2a4899d67f69634ea4dd93e3f651936d732cb
F src/vdbemem.c 2fc78b3e0fabcc1eaa23cd79dd2e30e6dcfe1e56
F src/vdbesort.c 468d43c057063e54da4f1988b38b4f46d60e7790
@@ -983,7 +983,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
P da118e02c0576ce16f7a26663f59413316223d55 e85cfe9a17a2943ee0cf7915451ff6cc05908030
R 4fb854e64d34a9b880548a23455e8f4d
P 322bd15f97143d39b3a88d5f6cf7afb454e0666e bb40338887c912be70cb6fe3b760d87c14bb88a5
R a70f90ef372516f64947505d1ba22869
U drh
Z 1f8384d1da732a66b49bdc6038214de7
Z a2e5ef34107012b45c32946167d7851d

2
manifest.uuid
View File

@@ -1 +1 @@
322bd15f97143d39b3a88d5f6cf7afb454e0666e
cf3bccc2e944cd2dd3efb8554682994a06115f16

304
src/test_multiplex.c
View File

@@ -133,7 +133,8 @@ struct multiplexGroup {
int nName; /* Length of base filename */
int flags; /* Flags used for original opening */
unsigned int szChunk; /* Chunk size used for this group */
int bEnabled; /* TRUE to use Multiplex VFS for this file */
unsigned char bEnabled; /* TRUE to use Multiplex VFS for this file */
unsigned char bTruncate; /* TRUE to enable truncation of databases */
multiplexGroup *pNext, *pPrev; /* Doubly linked list of all group objects */
};
@@ -216,6 +217,39 @@ static int multiplexStrlen30(const char *z){
return 0x3fffffff & (int)(z2 - z);
}
/*
** Generate the file-name for chunk iChunk of the group with base name
** zBase. The file-name is written to buffer zOut before returning. Buffer
** zOut must be allocated by the caller so that it is at least (nBase+4)
** bytes in size, where nBase is the length of zBase, not including the
** nul-terminator.
*/
static void multiplexFilename(
const char *zBase, /* Filename for chunk 0 */
int nBase, /* Size of zBase in bytes (without \0) */
int flags, /* Flags used to open file */
int iChunk, /* Chunk to generate filename for */
char *zOut /* Buffer to write generated name to */
){
memcpy(zOut, zBase, nBase+1);
if( iChunk!=0 && iChunk!=SQLITE_MULTIPLEX_JOURNAL_8_3_OFFSET ){
int n = nBase;
#ifdef SQLITE_ENABLE_8_3_NAMES
int i;
for(i=n-1; i>0 && i>=n-4 && zOut[i]!='.'; i--){}
if( i>=n-4 ) n = i+1;
if( flags & SQLITE_OPEN_MAIN_JOURNAL ){
/* The extensions on overflow files for main databases are 001, 002,
** 003 and so forth. To avoid name collisions, add 400 to the
** extensions of journal files so that they are 401, 402, 403, ....
*/
iChunk += SQLITE_MULTIPLEX_JOURNAL_8_3_OFFSET;
}
#endif
sqlite3_snprintf(4,&zOut[n],"%03d",iChunk);
}
}
/* Compute the filename for the iChunk-th chunk
*/
static int multiplexSubFilename(multiplexGroup *pGroup, int iChunk){
@@ -236,34 +270,24 @@ static int multiplexSubFilename(multiplexGroup *pGroup, int iChunk){
if( z==0 ){
return SQLITE_NOMEM;
}
memcpy(z, pGroup->zName, n+1);
if( iChunk>0 ){
#ifdef SQLITE_ENABLE_8_3_NAMES
int i;
for(i=n-1; i>0 && i>=n-4 && z[i]!='.'; i--){}
if( i>=n-4 ) n = i+1;
if( pGroup->flags & (SQLITE_OPEN_MAIN_JOURNAL|SQLITE_OPEN_TEMP_JOURNAL) ){
/* The extensions on overflow files for main databases are 001, 002,
** 003 and so forth. To avoid name collisions, add 400 to the
** extensions of journal files so that they are 401, 402, 403, ....
*/
iChunk += SQLITE_MULTIPLEX_JOURNAL_8_3_OFFSET;
}
#endif
sqlite3_snprintf(4,&z[n],"%03d",iChunk);
}
multiplexFilename(pGroup->zName, pGroup->nName, pGroup->flags, iChunk, z);
}
return SQLITE_OK;
}
/* Translate an sqlite3_file* that is really a multiplexGroup* into
** the sqlite3_file* for the underlying original VFS.
**
** For chunk 0, the pGroup->flags determines whether or not a new file
** is created if it does not already exist. For chunks 1 and higher, the
** file is created only if createFlag is 1.
*/
static sqlite3_file *multiplexSubOpen(
multiplexGroup *pGroup,
int iChunk,
int *rc,
int *pOutFlags
multiplexGroup *pGroup, /* The multiplexor group */
int iChunk, /* Which chunk to open. 0==original file */
int *rc, /* Result code in and out */
int *pOutFlags, /* Output flags */
int createFlag /* True to create if iChunk>0 */
){
sqlite3_file *pSubOpen = 0;
sqlite3_vfs *pOrigVfs = gMultiplex.pOrigVfs; /* Real VFS */
@@ -281,15 +305,30 @@ static sqlite3_file *multiplexSubOpen(
*rc = multiplexSubFilename(pGroup, iChunk);
if( (*rc)==SQLITE_OK && (pSubOpen = pGroup->aReal[iChunk].p)==0 ){
int flags, bExists;
createFlag = (pGroup->flags & SQLITE_OPEN_CREATE)!=0;
flags = pGroup->flags;
if( createFlag ){
flags |= SQLITE_OPEN_CREATE;
}else if( iChunk==0 ){
/* Fall through */
}else if( pGroup->aReal[iChunk].z==0 ){
return 0;
}else{
*rc = pOrigVfs->xAccess(pOrigVfs, pGroup->aReal[iChunk].z,
SQLITE_ACCESS_EXISTS, &bExists);
if( *rc || !bExists ) return 0;
flags &= ~SQLITE_OPEN_CREATE;
}
pSubOpen = sqlite3_malloc( pOrigVfs->szOsFile );
if( pSubOpen==0 ){
*rc = SQLITE_NOMEM;
*rc = SQLITE_IOERR_NOMEM;
return 0;
}
pGroup->aReal[iChunk].p = pSubOpen;
*rc = pOrigVfs->xOpen(pOrigVfs, pGroup->aReal[iChunk].z, pSubOpen,
pGroup->flags, pOutFlags);
if( *rc!=SQLITE_OK ){
flags, pOutFlags);
if( (*rc)!=SQLITE_OK ){
sqlite3_free(pSubOpen);
pGroup->aReal[iChunk].p = 0;
return 0;
@@ -298,6 +337,25 @@ static sqlite3_file *multiplexSubOpen(
return pSubOpen;
}
/*
** Return the size, in bytes, of chunk number iChunk. If that chunk
** does not exist, then return 0. This function does not distingish between
** non-existant files and zero-length files.
*/
static sqlite3_int64 multiplexSubSize(
multiplexGroup *pGroup, /* The multiplexor group */
int iChunk, /* Which chunk to open. 0==original file */
int *rc /* Result code in and out */
){
sqlite3_file *pSub;
sqlite3_int64 sz = 0;
pSub = multiplexSubOpen(pGroup, iChunk, rc, NULL, 0);
if( pSub==0 ) return 0;
*rc = pSub->pMethods->xFileSize(pSub, &sz);
return sz;
}
/*
** This is the implementation of the multiplex_control() SQL function.
*/
@@ -365,7 +423,9 @@ static void multiplexSubClose(
sqlite3_file *pSubOpen = pGroup->aReal[iChunk].p;
if( pSubOpen ){
pSubOpen->pMethods->xClose(pSubOpen);
if( pOrigVfs ) pOrigVfs->xDelete(pOrigVfs, pGroup->aReal[iChunk].z, 0);
if( pOrigVfs && pGroup->aReal[iChunk].z ){
pOrigVfs->xDelete(pOrigVfs, pGroup->aReal[iChunk].z, 0);
}
sqlite3_free(pGroup->aReal[iChunk].p);
}
sqlite3_free(pGroup->aReal[iChunk].z);
@@ -435,6 +495,7 @@ static int multiplexOpen(
memset(pGroup, 0, sz);
pMultiplexOpen->pGroup = pGroup;
pGroup->bEnabled = -1;
pGroup->bTruncate = (flags & SQLITE_OPEN_MAIN_DB)==0;
pGroup->szChunk = SQLITE_MULTIPLEX_CHUNK_SIZE;
if( zName ){
@@ -455,41 +516,76 @@ static int multiplexOpen(
pGroup->bEnabled = 0;
}
}
if( sqlite3_uri_parameter(zName, "truncate") ) pGroup->bTruncate = 1;
}
pGroup->zName = p;
memcpy(pGroup->zName, zName, nName+1);
pGroup->nName = nName;
}
if( pGroup->bEnabled ){
/* Make sure that the chunksize is not such that the pending byte
** falls at the end of a chunk. A region of up to 64K following
** the pending byte is never written, so if the pending byte occurs
** near the end of a chunk, that chunk will be too small. */
extern int sqlite3PendingByte;
while( (sqlite3PendingByte % pGroup->szChunk)>=(pGroup->szChunk-65536) ){
pGroup->szChunk += 65536;
}
}
pGroup->flags = flags;
rc = multiplexSubFilename(pGroup, 1);
if( rc==SQLITE_OK ){
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, pOutFlags);
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, pOutFlags, 0);
if( pSubOpen==0 && rc==SQLITE_OK ) rc = SQLITE_CANTOPEN;
}
if( pSubOpen ){
int exists, rc2, rc3;
if( rc==SQLITE_OK ){
sqlite3_int64 sz;
rc2 = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
if( rc2==SQLITE_OK && zName ){
/* If the first overflow file exists and if the size of the main file
** is different from the chunk size, that means the chunk size is set
** set incorrectly. So fix it.
**
** Or, if the first overflow file does not exist and the main file is
** larger than the chunk size, that means the chunk size is too small.
** But we have no way of determining the intended chunk size, so
** just disable the multiplexor all togethre.
*/
rc3 = pOrigVfs->xAccess(pOrigVfs, pGroup->aReal[1].z,
SQLITE_ACCESS_EXISTS, &exists);
if( rc3==SQLITE_OK && exists && sz==(sz&0xffff0000) && sz>0
&& sz!=pGroup->szChunk ){
pGroup->szChunk = sz;
}else if( rc3==SQLITE_OK && !exists && sz>pGroup->szChunk ){
pGroup->bEnabled = 0;
rc = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
if( rc==SQLITE_OK && zName ){
int bExists;
if( sz==0 ){
if( flags & SQLITE_OPEN_MAIN_JOURNAL ){
/* If opening a main journal file and the first chunk is zero
** bytes in size, delete any subsequent chunks from the
** file-system. */
int iChunk = 1;
do {
rc = pOrigVfs->xAccess(pOrigVfs,
pGroup->aReal[iChunk].z, SQLITE_ACCESS_EXISTS, &bExists
);
if( rc==SQLITE_OK && bExists ){
rc = pOrigVfs->xDelete(pOrigVfs, pGroup->aReal[iChunk].z, 0);
if( rc==SQLITE_OK ){
rc = multiplexSubFilename(pGroup, ++iChunk);
}
}
}while( rc==SQLITE_OK && bExists );
}
}else{
/* If the first overflow file exists and if the size of the main file
** is different from the chunk size, that means the chunk size is set
** set incorrectly. So fix it.
**
** Or, if the first overflow file does not exist and the main file is
** larger than the chunk size, that means the chunk size is too small.
** But we have no way of determining the intended chunk size, so
** just disable the multiplexor all togethre.
*/
rc = pOrigVfs->xAccess(pOrigVfs, pGroup->aReal[1].z,
SQLITE_ACCESS_EXISTS, &bExists);
bExists = multiplexSubSize(pGroup, 1, &rc)>0;
if( rc==SQLITE_OK && bExists && sz==(sz&0xffff0000) && sz>0
&& sz!=pGroup->szChunk ){
pGroup->szChunk = sz;
}else if( rc==SQLITE_OK && !bExists && sz>pGroup->szChunk ){
pGroup->bEnabled = 0;
}
}
}
}
if( rc==SQLITE_OK ){
if( pSubOpen->pMethods->iVersion==1 ){
pMultiplexOpen->base.pMethods = &gMultiplex.sIoMethodsV1;
}else{
@@ -518,8 +614,33 @@ static int multiplexDelete(
const char *zName, /* Name of file to delete */
int syncDir
){
int rc;
sqlite3_vfs *pOrigVfs = gMultiplex.pOrigVfs; /* Real VFS */
return pOrigVfs->xDelete(pOrigVfs, zName, syncDir);
rc = pOrigVfs->xDelete(pOrigVfs, zName, syncDir);
if( rc==SQLITE_OK ){
/* If the main chunk was deleted successfully, also delete any subsequent
** chunks - starting with the last (highest numbered).
*/
int nName = strlen(zName);
char *z;
z = sqlite3_malloc(nName + 4);
if( z==0 ){
rc = SQLITE_IOERR_NOMEM;
}else{
int iChunk = 0;
int bExists;
do{
multiplexFilename(zName, nName, SQLITE_OPEN_MAIN_JOURNAL, ++iChunk, z);
rc = pOrigVfs->xAccess(pOrigVfs, z, SQLITE_ACCESS_EXISTS, &bExists);
}while( rc==SQLITE_OK && bExists );
while( rc==SQLITE_OK && iChunk>1 ){
multiplexFilename(zName, nName, SQLITE_OPEN_MAIN_JOURNAL, --iChunk, z);
rc = pOrigVfs->xDelete(pOrigVfs, z, syncDir);
}
}
sqlite3_free(z);
}
return rc;
}
static int multiplexAccess(sqlite3_vfs *a, const char *b, int c, int *d){
@@ -596,7 +717,7 @@ static int multiplexRead(
int rc = SQLITE_OK;
multiplexEnter();
if( !pGroup->bEnabled ){
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL, 0);
if( pSubOpen==0 ){
rc = SQLITE_IOERR_READ;
}else{
@@ -605,7 +726,7 @@ static int multiplexRead(
}else{
while( iAmt > 0 ){
int i = (int)(iOfst / pGroup->szChunk);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL, 1);
if( pSubOpen ){
int extra = ((int)(iOfst % pGroup->szChunk) + iAmt) - pGroup->szChunk;
if( extra<0 ) extra = 0;
@@ -641,7 +762,7 @@ static int multiplexWrite(
int rc = SQLITE_OK;
multiplexEnter();
if( !pGroup->bEnabled ){
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL, 0);
if( pSubOpen==0 ){
rc = SQLITE_IOERR_WRITE;
}else{
@@ -650,7 +771,7 @@ static int multiplexWrite(
}else{
while( rc==SQLITE_OK && iAmt>0 ){
int i = (int)(iOfst / pGroup->szChunk);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL, 1);
if( pSubOpen ){
int extra = ((int)(iOfst % pGroup->szChunk) + iAmt) -
pGroup->szChunk;
@@ -678,28 +799,35 @@ static int multiplexTruncate(sqlite3_file *pConn, sqlite3_int64 size){
int rc = SQLITE_OK;
multiplexEnter();
if( !pGroup->bEnabled ){
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL, 0);
if( pSubOpen==0 ){
rc = SQLITE_IOERR_TRUNCATE;
}else{
rc = pSubOpen->pMethods->xTruncate(pSubOpen, size);
}
}else if( (pGroup->flags & SQLITE_OPEN_MAIN_DB)==0 ){
int rc2;
}else{
int i;
int iBaseGroup = (int)(size / pGroup->szChunk);
sqlite3_file *pSubOpen;
sqlite3_vfs *pOrigVfs = gMultiplex.pOrigVfs; /* Real VFS */
/* delete the chunks above the truncate limit */
for(i=(int)(size / pGroup->szChunk)+1; i<pGroup->nReal; i++){
multiplexSubClose(pGroup, i, pOrigVfs);
for(i = pGroup->nReal-1; i>iBaseGroup && rc==SQLITE_OK; i--){
if( pGroup->bTruncate ){
multiplexSubClose(pGroup, i, pOrigVfs);
}else{
pSubOpen = multiplexSubOpen(pGroup, i, &rc, 0, 0);
if( pSubOpen ){
rc = pSubOpen->pMethods->xTruncate(pSubOpen, 0);
}
}
}
pSubOpen = multiplexSubOpen(pGroup, (int)(size/pGroup->szChunk), &rc2,0);
if( pSubOpen ){
rc2 = pSubOpen->pMethods->xTruncate(pSubOpen, size % pGroup->szChunk);
if( rc2!=SQLITE_OK ) rc = rc2;
}else{
rc = SQLITE_IOERR_TRUNCATE;
if( rc==SQLITE_OK ){
pSubOpen = multiplexSubOpen(pGroup, iBaseGroup, &rc, 0, 0);
if( pSubOpen ){
rc = pSubOpen->pMethods->xTruncate(pSubOpen, size % pGroup->szChunk);
}
}
if( rc ) rc = SQLITE_IOERR_TRUNCATE;
}
multiplexLeave();
return rc;
@@ -734,42 +862,18 @@ static int multiplexFileSize(sqlite3_file *pConn, sqlite3_int64 *pSize){
int i;
multiplexEnter();
if( !pGroup->bEnabled ){
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL, 0);
if( pSubOpen==0 ){
rc = SQLITE_IOERR_FSTAT;
}else{
rc = pSubOpen->pMethods->xFileSize(pSubOpen, pSize);
}
}else{
sqlite3_vfs *pOrigVfs = gMultiplex.pOrigVfs;
*pSize = 0;
for(i=0; rc==SQLITE_OK; i++){
sqlite3_file *pSubOpen = 0;
int exists = 0;
rc = multiplexSubFilename(pGroup, i);
if( rc!=SQLITE_OK ) break;
if( pGroup->nReal>i && pGroup->aReal[i].p!=0 ){
exists = 1;
}else if( (pGroup->flags & SQLITE_OPEN_DELETEONCLOSE)==0 ){
const char *zReal = pGroup->aReal[i].z;
rc = pOrigVfs->xAccess(pOrigVfs, zReal, SQLITE_ACCESS_EXISTS, &exists);
}
if( exists==0 ){
/* stop at first "gap" or IO error. */
break;
}
if( rc==SQLITE_OK ){
pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL);
}
assert( pSubOpen || rc!=SQLITE_OK );
if( rc==SQLITE_OK ){
sqlite3_int64 sz = 0;
rc = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
if( rc==SQLITE_OK && sz>pGroup->szChunk ){
rc = SQLITE_IOERR_FSTAT;
}
*pSize += sz;
}
sqlite3_int64 sz = multiplexSubSize(pGroup, i, &rc);
if( sz==0 ) break;
*pSize = i*(sqlite3_int64)pGroup->szChunk + sz;
}
}
multiplexLeave();
@@ -781,7 +885,7 @@ static int multiplexFileSize(sqlite3_file *pConn, sqlite3_int64 *pSize){
static int multiplexLock(sqlite3_file *pConn, int lock){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xLock(pSubOpen, lock);
}
@@ -793,7 +897,7 @@ static int multiplexLock(sqlite3_file *pConn, int lock){
static int multiplexUnlock(sqlite3_file *pConn, int lock){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xUnlock(pSubOpen, lock);
}
@@ -805,7 +909,7 @@ static int multiplexUnlock(sqlite3_file *pConn, int lock){
static int multiplexCheckReservedLock(sqlite3_file *pConn, int *pResOut){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xCheckReservedLock(pSubOpen, pResOut);
}
@@ -853,7 +957,7 @@ static int multiplexFileControl(sqlite3_file *pConn, int op, void *pArg){
rc = SQLITE_OK;
break;
default:
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL);
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
rc = pSubOpen->pMethods->xFileControl(pSubOpen, op, pArg);
if( op==SQLITE_FCNTL_VFSNAME && rc==SQLITE_OK ){
@@ -870,7 +974,7 @@ static int multiplexFileControl(sqlite3_file *pConn, int op, void *pArg){
static int multiplexSectorSize(sqlite3_file *pConn){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen && pSubOpen->pMethods->xSectorSize ){
return pSubOpen->pMethods->xSectorSize(pSubOpen);
}
@@ -882,7 +986,7 @@ static int multiplexSectorSize(sqlite3_file *pConn){
static int multiplexDeviceCharacteristics(sqlite3_file *pConn){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xDeviceCharacteristics(pSubOpen);
}
@@ -900,7 +1004,7 @@ static int multiplexShmMap(
){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xShmMap(pSubOpen, iRegion, szRegion, bExtend,pp);
}
@@ -917,7 +1021,7 @@ static int multiplexShmLock(
){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xShmLock(pSubOpen, ofst, n, flags);
}
@@ -929,7 +1033,7 @@ static int multiplexShmLock(
static void multiplexShmBarrier(sqlite3_file *pConn){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
pSubOpen->pMethods->xShmBarrier(pSubOpen);
}
@@ -940,7 +1044,7 @@ static void multiplexShmBarrier(sqlite3_file *pConn){
static int multiplexShmUnmap(sqlite3_file *pConn, int deleteFlag){
multiplexConn *p = (multiplexConn*)pConn;
int rc;
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL);
sqlite3_file *pSubOpen = multiplexSubOpen(p->pGroup, 0, &rc, NULL, 0);
if( pSubOpen ){
return pSubOpen->pMethods->xShmUnmap(pSubOpen, deleteFlag);
}

1
src/util.c
View File

@@ -1169,6 +1169,7 @@ int sqlite3AbsInt32(int x){
** test.db-journal => test.nal
** test.db-wal => test.wal
** test.db-shm => test.shm
** test.db-mj7f3319fa => test.9fa
*/
void sqlite3FileSuffix3(const char *zBaseFilename, char *z){
#if SQLITE_ENABLE_8_3_NAMES<2

20
src/vdbeaux.c
View File

@@ -1833,16 +1833,26 @@ static int vdbeCommit(sqlite3 *db, Vdbe *p){
sqlite3_file *pMaster = 0;
i64 offset = 0;
int res;
int retryCount = 0;
int nMainFile;
/* Select a master journal file name */
nMainFile = sqlite3Strlen30(zMainFile);
zMaster = sqlite3MPrintf(db, "%s-mjXXXXXX9XX", zMainFile);
if( zMaster==0 ) return SQLITE_NOMEM;
do {
u32 iRandom;
sqlite3DbFree(db, zMaster);
sqlite3_randomness(sizeof(iRandom), &iRandom);
zMaster = sqlite3MPrintf(db, "%s-mj%08X", zMainFile, iRandom&0x7fffffff);
if( !zMaster ){
return SQLITE_NOMEM;
if( retryCount++>100 ){
sqlite3_log(SQLITE_FULL, "cannot find unique master-journal");
sqlite3OsDelete(pVfs, zMaster, 0);
break;
}
sqlite3_randomness(sizeof(iRandom), &iRandom);
sqlite3_snprintf(13, &zMaster[nMainFile], "-mj%06X9%02X",
(iRandom>>8)&0xffffff, iRandom&0xff);
/* The antipenultimate character of the master journal name must
** be "9" to avoid name collisions when using 8+3 filenames. */
assert( zMaster[sqlite3Strlen30(zMaster)-3]=='9' );
sqlite3FileSuffix3(zMainFile, zMaster);
rc = sqlite3OsAccess(pVfs, zMaster, SQLITE_ACCESS_EXISTS, &res);
}while( rc==SQLITE_OK && res );