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Add the SQLITE_FCNTL_TEMPFILENAME file control that asks the underlying VFS

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to return a new temporary filename.  Per request from NSS team at Mozilla.

FossilOrigin-Name: 1a63b1d5fa5d79f96eddbda6d94bc10248863710
This commit is contained in:
drh
2012-12-06 19:01:42 +00:00
parent 48dd9deffe
commit 696b33e622
9 changed files with 90 additions and 17 deletions
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4
src/test_vfstrace.c
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@@ -475,6 +475,7 @@ static int vfstraceFileControl(sqlite3_file *pFile, int op, void *pArg){
case SQLITE_FCNTL_PERSIST_WAL: zOp = "PERSIST_WAL"; break;
case SQLITE_FCNTL_OVERWRITE: zOp = "OVERWRITE"; break;
case SQLITE_FCNTL_VFSNAME: zOp = "VFSNAME"; break;
case SQLITE_FCNTL_TEMPFILENAME: zOp = "TEMPFILENAME"; break;
case 0xca093fa0: zOp = "DB_UNCHANGED"; break;
case SQLITE_FCNTL_PRAGMA: {
const char *const* a = (const char*const*)pArg;
@@ -496,7 +497,8 @@ static int vfstraceFileControl(sqlite3_file *pFile, int op, void *pArg){
*(char**)pArg = sqlite3_mprintf("vfstrace.%s/%z",
pInfo->zVfsName, *(char**)pArg);
}
if( op==SQLITE_FCNTL_PRAGMA && rc==SQLITE_OK && *(char**)pArg ){
if( (op==SQLITE_FCNTL_PRAGMA || op==SQLITE_FCNTL_TEMPFILENAME)
&& rc==SQLITE_OK && *(char**)pArg ){
vfstrace_printf(pInfo, "%s.xFileControl(%s,%s) returns %s",
pInfo->zVfsName, p->zFName, zOp, *(char**)pArg);
}