static int tvfsShmUnmap(
sqlite3_file *pFile,
int deleteFlag
){
int rc = SQLITE_OK;
TestvfsFd *pFd = tvfsGetFd(pFile);
Testvfs *p = (Testvfs *)(pFd->pVfs->pAppData);
TestvfsBuffer *pBuffer = pFd->pShm;
TestvfsFd **ppFd;
if( p->isFullshm ){
return sqlite3OsShmUnmap(pFd->pReal, deleteFlag);
}
if( !pBuffer ) return SQLITE_OK;
assert( pFd->pShmId && pFd->pShm );
if( p->pScript && p->mask&TESTVFS_SHMCLOSE_MASK ){
tvfsExecTcl(p, "xShmUnmap",
Tcl_NewStringObj(pFd->pShm->zFile, -1), pFd->pShmId, 0, 0
);
tvfsResultCode(p, &rc);
}
for(ppFd=&pBuffer->pFile; *ppFd!=pFd; ppFd=&((*ppFd)->pNext));
assert( (*ppFd)==pFd );
*ppFd = pFd->pNext;
pFd->pNext = 0;
if( pBuffer->pFile==0 ){
int i;
TestvfsBuffer **pp;
for(pp=&p->pBuffer; *pp!=pBuffer; pp=&((*pp)->pNext));
*pp = (*pp)->pNext;
for(i=0; pBuffer->aPage[i]; i++){
ckfree((char *)pBuffer->aPage[i]);
}
ckfree((char *)pBuffer);
}
pFd->pShm = 0;
return rc;
}
static int cfShmUnmap(sqlite3_file *pFile, int delFlag){
return sqlite3OsShmUnmap(((CrashFile*)pFile)->pRealFile, delFlag);
}
static int devsymShmUnmap(sqlite3_file *pFile, int delFlag){
devsym_file *p = (devsym_file *)pFile;
return sqlite3OsShmUnmap(p->pReal, delFlag);
}
