Remove the currently unused FRONTEND case in dllist.c. This allows the usage

of palloc instead of malloc, which means a list can be freed simply by deleting
the memory context that contains it.

diff --git a/src/backend/lib/dllist.c b/src/backend/lib/dllist.c
index a249ab31769df0cd8c7068aabf5a481e18f5996f..27cb22f4e354d0ad4939aecaf93b9749cfdbde38 100644 (file)
--- a/src/backend/lib/dllist.c
+++ b/src/backend/lib/dllist.c
@@ -9,19 +9,11 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/lib/dllist.c,v 1.34 2007/01/05 22:19:29 momjian Exp $
+ *       $PostgreSQL: pgsql/src/backend/lib/dllist.c,v 1.35 2007/03/22 18:57:52 alvherre Exp $
  *
  *-------------------------------------------------------------------------
  */
-
-/* can be used in frontend or backend */
-#ifdef FRONTEND
-#include "postgres_fe.h"
-/* No assert checks in frontend ... */
-#define Assert(condition)
-#else
 #include "postgres.h"
-#endif
 
 #include "lib/dllist.h"
 
@@ -31,18 +23,8 @@ DLNewList(void)
 {
        Dllist     *l;
 
-       l = (Dllist *) malloc(sizeof(Dllist));
-       if (l == NULL)
-       {
-#ifdef FRONTEND
-               fprintf(stderr, "memory exhausted in DLNewList\n");
-               exit(1);
-#else
-               ereport(ERROR,
-                               (errcode(ERRCODE_OUT_OF_MEMORY),
-                                errmsg("out of memory")));
-#endif
-       }
+       l = (Dllist *) palloc(sizeof(Dllist));
+
        l->dll_head = NULL;
        l->dll_tail = NULL;
 
@@ -66,9 +48,9 @@ DLFreeList(Dllist *list)
        Dlelem     *curr;
 
        while ((curr = DLRemHead(list)) != NULL)
-               free(curr);
+               pfree(curr);
 
-       free(list);
+       pfree(list);
 }
 
 Dlelem *
@@ -76,18 +58,8 @@ DLNewElem(void *val)
 {
        Dlelem     *e;
 
-       e = (Dlelem *) malloc(sizeof(Dlelem));
-       if (e == NULL)
-       {
-#ifdef FRONTEND
-               fprintf(stderr, "memory exhausted in DLNewElem\n");
-               exit(1);
-#else
-               ereport(ERROR,
-                               (errcode(ERRCODE_OUT_OF_MEMORY),
-                                errmsg("out of memory")));
-#endif
-       }
+       e = (Dlelem *) palloc(sizeof(Dlelem));
+
        e->dle_next = NULL;
        e->dle_prev = NULL;
        e->dle_val = val;
@@ -107,7 +79,7 @@ DLInitElem(Dlelem *e, void *val)
 void
 DLFreeElem(Dlelem *e)
 {
-       free(e);
+       pfree(e);
 }
 
 void