Changeset 533 for trunk/src/gmake/function.c

Timestamp:

Sep 18, 2006, 5:02:39 AM (19 years ago)

Author:

bird

Message:

o Optimization summary: libc from ~21 seconds -> 7-8 seconds (os2/nt).
o Optimized appending new stuff to variables. (major win)
o Optimized variable memory value allocation avoiding a bunch of

unnecessary copying and allocating.

File:

• trunk/src/gmake/function.c (modified) (3 diffs)

trunk/src/gmake/function.c

@@ -36 +36 @@
 #endif
 
-#ifdef KMK
+#ifdef KMK_HELPERS
 # include "kbuild.h"
 #endif 
@@ -887 +887 @@
       char *result = 0;
 #ifdef CONFIG_WITH_VALUE_LENGTH
-      if (len > (unsigned int)var->value_length)
+      if (len >= (unsigned int)var->value_alloc_len)
         {
           free (var->value);
-          var->value = xmalloc (len + 1);
+          var->value_alloc_len = (len + 32) & ~31;
+          var->value = xmalloc (var->value_alloc_len);
         }
       memcpy (var->value, p, len);
@@ -2330 +2331 @@
   { STRING_SIZE_TUPLE("comp-vars"),     3,  3,  1,  func_comp_vars},
 #endif
-#ifdef KMK
+#ifdef KMK_HELPERS
   { STRING_SIZE_TUPLE("kb-src-tool"),   1,  1,  0,  func_kbuild_source_tool},
   { STRING_SIZE_TUPLE("kb-obj-base"),   1,  1,  0,  func_kbuild_object_base},