Add the ability to specify a alternative temporary file directory using the

"sqlite_temp_directory" global variable. (CVS 1885)

FossilOrigin-Name: fce56ba6a3c53843fabdfad4f545e35a83a01aa9

manifest

@@ -1,5 +1,5 @@
-C Version\s3.0.4\s(beta)\s(CVS\s1884)
-D 2004-08-09T00:26:58
+C Add\sthe\sability\sto\sspecify\sa\salternative\stemporary\sfile\sdirectory\susing\sthe\n"sqlite_temp_directory"\sglobal\svariable.\s(CVS\s1885)
+D 2004-08-14T17:10:11
 F Makefile.in 4a5e570a9e2d35b09c31b3cf01b78cea764ade4b
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -47,7 +47,7 @@ F src/os_mac.c 3d31e26be1411acfb7961033098631b4f3486fdf
 F src/os_mac.h 51d2445f47e182ed32d3bd6937f81070c6fd9bd4
 F src/os_test.c 6bf10100de2ca199a91fe7ac6474561c8a7166ae
 F src/os_test.h 6a26a4978492e4bbdbf385554958418ff02db162
-F src/os_unix.c d084e3443211e1556f1a33fe48580e135facbcf7
+F src/os_unix.c 3239a45dbd2f50195bfc97f1ed35cb8fe5a3f60c
 F src/os_unix.h f3097815e041e82e24d92505e1ff61ba24172d13
 F src/os_win.c 54181eb73cb4783c4241feca9eaa490768b39008
 F src/os_win.h babd4e912967c6b09088cfe38a45e8005a07ba44
@@ -59,11 +59,11 @@ F src/printf.c 17b28a1eedfe8129b05de981719306c18c3f1327
 F src/random.c eff68e3f257e05e81eae6c4d50a51eb88beb4ff3
 F src/select.c cbed45f4af76ad7fdfc0a0df6878b2b3827ae1d4
 F src/shell.c 69d8036a8871c53603016cc6d240a3efaa9584df
-F src/sqlite.h.in c340a12b4d0521efb474dd000fba3bdfb18d76da
+F src/sqlite.h.in 7fa206b3c7740d891d087cd87c36f6885ce03e70
 F src/sqliteInt.h 251662c89dd35c4ed745681ff00758d19ffd0906
 F src/table.c 4521c278892f60e4d630788c0ea5cf4db1e75c49
 F src/tclsqlite.c cece44ee1d4427185e4ac85ddec79f31ac26965a
-F src/test1.c 9389fafc3c3a2a3b6bf4f7cffe1c7e8ccdd0be38
+F src/test1.c 56e7980918737ef6c45a6cb3afeb1b23e68ed19e
 F src/test2.c f4c2f3928f1998fd8cb75a81e33a60e025ea85d4
 F src/test3.c 94d0a2a90bccd85802488cb42c69ec8afd2e4646
 F src/test4.c c38766914e924091516030b6a8b677d849c08bf0
@@ -242,7 +242,7 @@ F www/tclsqlite.tcl 06a86cba4d7fc88e2bcd633b57702d3d16abebb5
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 72fb719bdd627694d89ea523dda3cf44537463a9
-R 90e96fde8e9b7dffc0f3f68d9146eaac
+P 98edbdd5176704a3a8cbcb19614b51c59d748fda
+R 982c1729c0a5e72a7a4f118d1decb57a
 U drh
-Z 1c62f6e94ef5d400623d97aff1d08313
+Z 0b11b5a9cffe643b71abfc4d5fdccfb3

manifest.uuid

@@ -1 +1 @@
-98edbdd5176704a3a8cbcb19614b51c59d748fda
+fce56ba6a3c53843fabdfad4f545e35a83a01aa9

src/os_unix.c

@@ -568,12 +568,20 @@ int sqlite3OsOpenDirectory(
   return SQLITE_OK;
 }
 
+/*
+** If the following global variable points to a string which is the
+** name of a directory, then that directory will be used to store
+** temporary files.
+*/
+const char *sqlite_temp_directory = 0;
+
 /*
 ** Create a temporary file name in zBuf.  zBuf must be big enough to
 ** hold at least SQLITE_TEMPNAME_SIZE characters.
 */
 int sqlite3OsTempFileName(char *zBuf){
   static const char *azDirs[] = {
+     0,
      "/var/tmp",
      "/usr/tmp",
      "/tmp",
@@ -586,7 +594,9 @@ int sqlite3OsTempFileName(char *zBuf){
   int i, j;
   struct stat buf;
   const char *zDir = ".";
+  azDirs[0] = sqlite_temp_directory;
   for(i=0; i<sizeof(azDirs)/sizeof(azDirs[0]); i++){
+    if( azDirs[i]==0 ) continue;
     if( stat(azDirs[i], &buf) ) continue;
     if( !S_ISDIR(buf.st_mode) ) continue;
     if( access(azDirs[i], 07) ) continue;

src/sqlite.h.in

@@ -12,7 +12,7 @@
 ** This header file defines the interface that the SQLite library
 ** presents to client programs.
 **
-** @(#) $Id: sqlite.h.in,v 1.112 2004/08/01 00:10:45 drh Exp $
+** @(#) $Id: sqlite.h.in,v 1.113 2004/08/14 17:10:12 drh Exp $
 */
 #ifndef _SQLITE_H_
 #define _SQLITE_H_
@@ -1115,6 +1115,19 @@ int sqlite3_rekey(
   const void *pKey, int nKey     /* The new key */
 );
 
+/*
+** If the following global variable is made to point to a constant
+** string which is the name of a directory, then all temporary files
+** created by SQLite will be placed in that directory.  If this variable
+** is NULL pointer, then SQLite does a search for an appropriate temporary
+** file directory.
+**
+** This variable should only be changed when there are no open databases.
+** Once sqlite3_open() has been called, this variable should not be changed
+** until all database connections are closed.
+*/
+extern const char *sqlite_temp_directory;
+
 #ifdef __cplusplus
 }  /* End of the 'extern "C"' block */
 #endif

src/test1.c

@@ -13,7 +13,7 @@
 ** is not included in the SQLite library.  It is used for automated
 ** testing of the SQLite library.
 **
-** $Id: test1.c,v 1.96 2004/07/26 12:24:23 drh Exp $
+** $Id: test1.c,v 1.97 2004/08/14 17:10:12 drh Exp $
 */
 #include "sqliteInt.h"
 #include "tcl.h"
@@ -2339,6 +2339,26 @@ static int test_sqlite3OsUnlock(
   return TCL_OK;
 }
 
+/*
+** Usage:  sqlite3OsTempFileName
+*/
+static int test_sqlite3OsTempFileName(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  char zFile[SQLITE_TEMPNAME_SIZE];
+  int rc;
+
+  rc = sqlite3OsTempFileName(zFile);
+  if( rc!=SQLITE_OK ){
+    Tcl_SetResult(interp, (char *)errorName(rc), TCL_STATIC);
+    return TCL_ERROR;
+  }
+  Tcl_AppendResult(interp, zFile, 0);
+  return TCL_OK;
+}
 
 /*
 ** Register commands with the TCL interpreter.
@@ -2424,6 +2444,7 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
      { "sqlite3OsOpenReadWrite",test_sqlite3OsOpenReadWrite, 0 },
      { "sqlite3OsClose",        test_sqlite3OsClose, 0 },
      { "sqlite3OsLock",         test_sqlite3OsLock, 0 },
+     { "sqlite3OsTempFileName", test_sqlite3OsTempFileName, 0 },
    
      /* Custom test interfaces */
      { "sqlite3OsUnlock",         test_sqlite3OsUnlock, 0    },
@@ -2456,5 +2477,7 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
       (char*)&sqlite3_os_trace, TCL_LINK_INT);
   Tcl_LinkVar(interp, "sqlite_static_bind_value",
       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
+  Tcl_LinkVar(interp, "sqlite_temp_directory",
+      (char*)&sqlite_temp_directory, TCL_LINK_STRING);
   return TCL_OK;
 }