Add common path_tmpdir function to get system dependent path to temporary a directory.

[SVN r31509]

src/engine/execnt.c

@@ -13,6 +13,7 @@
 # include "jam.h"
 # include "lists.h"
 # include "execcmd.h"
+# include "pathsys.h"
 # include "debug.h"
 # include <errno.h>
 # include <assert.h>
@@ -440,34 +441,6 @@ void execnt_unit_test()
 #endif 
 }
 
-/* SVA - handle temp dirs with spaces in the path */
-static const char *getTempDir(void)
-{
-    static char tempPath[_MAX_PATH];
-    static char *pTempPath=NULL;
-
-    if(pTempPath == NULL)
-    {
-        char *p;
-
-        p = getenv("TEMP");
-        if(p == NULL)
-        {
-            p = getenv("TMP");
-        }
-        if(p == NULL)
-        {
-            pTempPath = "\\temp";
-        }
-        else
-        {
-            GetShortPathName(p, tempPath, _MAX_PATH);
-            pTempPath = tempPath;
-        }
-    }
-    return pTempPath;
-}
-
 /* 64-bit arithmetic helpers */
 
 /* Compute the carry bit from the addition of two 32-bit unsigned numbers */
@@ -577,18 +550,14 @@ execcmd(
   
     if( !cmdtab[ slot ].tempfile )
     {
-        const char *tempdir;
-        DWORD procID;
-
-        tempdir = getTempDir();
+        const char *tempdir = path_tmpdir();
+        DWORD procID = GetCurrentProcessId();
   
         /* SVA - allocate 64 other just to be safe */
         cmdtab[ slot ].tempfile = malloc( strlen( tempdir ) + 64 );
         if ( DEBUG_PROFILE )
             profile_memory( strlen( tempdir ) + 64 );
   
-        procID = GetCurrentProcessId();
-  
         sprintf( cmdtab[ slot ].tempfile, "%s\\jam%d-%02d.bat", 
                  tempdir, procID, slot );		
     }

src/engine/pathsys.h

@@ -63,4 +63,11 @@ char* short_path_to_long_path(char* short_path);
 
 #endif
 
+#ifdef USE_PATHUNIX
+/** Returns a static pointer to the system dependent path to the temporary
+    directory. NOTE: *without* a trailing path separator.
+*/
+const char * path_tmpdir(void);
+#endif
+
 #endif

src/engine/pathunix.c

@@ -6,6 +6,7 @@
 
 /*  This file is ALSO:
  *  Copyright 2001-2004 David Abrahams.
+ *  Copyright 2005 Rene Rivera.
  *  Distributed under the Boost Software License, Version 1.0.
  *  (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
  */
@@ -393,5 +394,34 @@ char* short_path_to_long_path(char* short_path)
 
 #endif
 
+static string path_tmpdir_buffer[1];
+static const char * path_tmpdir_result = 0;
+
+const char * path_tmpdir()
+{
+    if (!path_tmpdir_result)
+    {
+        # ifdef OS_NT
+        DWORD pathLength = 0;
+        pathLength = GetTempPath(pathLength,NULL);
+        string_new(path_tmpdir_buffer);
+        string_reserve(path_tmpdir_buffer,pathLength);
+        pathLength = GetTempPathA(pathLength,path_tmpdir_buffer[0].value);
+        path_tmpdir_buffer[0].value[pathLength] = '\0';
+        path_tmpdir_buffer[0].size = pathLength-1;
+        # else
+        const char * t = getenv("TMPDIR");
+        if (!t)
+        {
+            t = "/tmp";
+        }
+        string_new(path_tmpdir_buffer);
+        string_append(path_tmpdir_buffer,t);
+        # endif
+        path_tmpdir_result = path_tmpdir_buffer[0].value;
+    }
+    return path_tmpdir_result;
+}
+
 
 # endif /* unix, NT, OS/2, AmigaOS */