zone: Use the generic linked list

diff --git a/zone.c b/zone.c
index 23258a278c0bcc74b90323f353856bcd265ed662..65964624e76b912b1256d68011d5dca4730138ad 100644 (file)
--- a/zone.c
+++ b/zone.c
@@ -423,11 +423,7 @@ void *_Mem_Alloc(mempool_t *pool, void *olddata, size_t size, size_t alignment,
        memcpy((unsigned char *) mem + sizeof(memheader_t) + mem->size, &sentinel2, sizeof(sentinel2));
 
        // append to head of list
-       mem->next = pool->chain;
-       mem->prev = NULL;
-       pool->chain = mem;
-       if (mem->next)
-               mem->next->prev = mem;
+       List_Add(&mem->list, &pool->chain);
 
        if (mem_mutex)
                Thread_UnlockMutex(mem_mutex);
@@ -468,16 +464,11 @@ static void _Mem_FreeBlock(memheader_t *mem, const char *filename, int fileline)
        if (developer_memory.integer)
                Con_DPrintf("Mem_Free: pool %s, alloc %s:%i, free %s:%i, size %i bytes\n", pool->name, mem->filename, mem->fileline, filename, fileline, (int)(mem->size));
        // unlink memheader from doubly linked list
-       if ((mem->prev ? mem->prev->next != mem : pool->chain != mem) || (mem->next && mem->next->prev != mem))
+       if (mem->list.prev->next != &mem->list || mem->list.next->prev != &mem->list)
                Sys_Error("Mem_Free: not allocated or double freed (free at %s:%i)", filename, fileline);
        if (mem_mutex)
                Thread_LockMutex(mem_mutex);
-       if (mem->prev)
-               mem->prev->next = mem->next;
-       else
-               pool->chain = mem->next;
-       if (mem->next)
-               mem->next->prev = mem->prev;
+       List_Delete(&mem->list);
        // memheader has been unlinked, do the actual free now
        size = mem->size;
        realsize = sizeof(memheader_t) + size + sizeof(sentinel2);
@@ -526,7 +517,7 @@ mempool_t *_Mem_AllocPool(const char *name, int flags, mempool_t *parent, const
        pool->filename = filename;
        pool->fileline = fileline;
        pool->flags = flags;
-       pool->chain = NULL;
+       List_Create(&pool->chain);
        pool->totalsize = 0;
        pool->realsize = sizeof(mempool_t);
        strlcpy (pool->name, name, sizeof (pool->name));
@@ -556,8 +547,8 @@ void _Mem_FreePool(mempool_t **poolpointer, const char *filename, int fileline)
                *chainaddress = pool->next;
 
                // free memory owned by the pool
-               while (pool->chain)
-                       _Mem_FreeBlock(pool->chain, filename, fileline);
+               while (!List_Is_Empty(&pool->chain))
+                       _Mem_FreeBlock(List_First_Entry(&pool->chain, memheader_t, list), filename, fileline);
 
                // free child pools, too
                for(iter = poolchain; iter; iter = temp) {
@@ -595,8 +586,8 @@ void _Mem_EmptyPool(mempool_t *pool, const char *filename, int fileline)
                Sys_Error("Mem_EmptyPool: trashed pool sentinel 2 (allocpool at %s:%i, emptypool at %s:%i)", pool->filename, pool->fileline, filename, fileline);
 
        // free memory owned by the pool
-       while (pool->chain)
-               _Mem_FreeBlock(pool->chain, filename, fileline);
+       while (!List_Is_Empty(&pool->chain))
+               _Mem_FreeBlock(List_First_Entry(&pool->chain, memheader_t, list), filename, fileline);
 
        // empty child pools, too
        for(chainaddress = poolchain; chainaddress; chainaddress = chainaddress->next)
@@ -649,7 +640,7 @@ void _Mem_CheckSentinelsGlobal(const char *filename, int fileline)
                        Sys_Error("Mem_CheckSentinelsGlobal: trashed pool sentinel 2 (allocpool at %s:%i, sentinel check at %s:%i)", pool->filename, pool->fileline, filename, fileline);
        }
        for (pool = poolchain;pool;pool = pool->next)
-               for (mem = pool->chain;mem;mem = mem->next)
+               List_For_Each_Entry(mem, &pool->chain, list)
                        _Mem_CheckSentinels((void *)((unsigned char *) mem + sizeof(memheader_t)), filename, fileline);
 #if MEMCLUMPING
        for (pool = poolchain;pool;pool = pool->next)
@@ -667,7 +658,7 @@ qbool Mem_IsAllocated(mempool_t *pool, void *data)
        {
                // search only one pool
                target = (memheader_t *)((unsigned char *) data - sizeof(memheader_t));
-               for( header = pool->chain ; header ; header = header->next )
+               List_For_Each_Entry(header, &pool->chain, list)
                        if( header == target )
                                return true;
        }
@@ -820,10 +811,10 @@ void Mem_PrintStats(void)
        Con_Printf("total allocated size: %lu bytes (%.3fMB)\n", (unsigned long)realsize, realsize / 1048576.0);
        for (pool = poolchain;pool;pool = pool->next)
        {
-               if ((pool->flags & POOLFLAG_TEMP) && pool->chain)
+               if ((pool->flags & POOLFLAG_TEMP) && !List_Is_Empty(&pool->chain))
                {
                        Con_Printf("Memory pool %p has sprung a leak totalling %lu bytes (%.3fMB)!  Listing contents...\n", (void *)pool, (unsigned long)pool->totalsize, pool->totalsize / 1048576.0);
-                       for (mem = pool->chain;mem;mem = mem->next)
+                       List_For_Each_Entry(mem, &pool->chain, list)
                                Con_Printf("%10lu bytes allocated at %s:%i\n", (unsigned long)mem->size, mem->filename, mem->fileline);
                }
        }
@@ -840,7 +831,7 @@ void Mem_PrintList(size_t minallocationsize)
        {
                Con_Printf("%10luk (%10luk actual) %s (%+li byte change) %s\n", (unsigned long) ((pool->totalsize + 1023) / 1024), (unsigned long)((pool->realsize + 1023) / 1024), pool->name, (long)(pool->totalsize - pool->lastchecksize), (pool->flags & POOLFLAG_TEMP) ? "TEMP" : "");
                pool->lastchecksize = pool->totalsize;
-               for (mem = pool->chain;mem;mem = mem->next)
+               List_For_Each_Entry(mem, &pool->chain, list)
                        if (mem->size >= minallocationsize)
                                Con_Printf("%10lu bytes allocated at %s:%i\n", (unsigned long)mem->size, mem->filename, mem->fileline);
        }

diff --git a/zone.h b/zone.h
index 46b2d1df1125a51ee03375eb2d42bfafd46280bd..3dec0b62b961e3d4e4da026721d753588554ccfe 100644 (file)
--- a/zone.h
+++ b/zone.h
@@ -24,6 +24,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <stddef.h>
 #include "qtypes.h"
 #include "qdefs.h"
+#include "com_list.h"
 
 extern qbool mem_bigendian;
 
@@ -39,8 +40,7 @@ typedef struct memheader_s
        // address returned by Chunk_Alloc (may be significantly before this header to satisify alignment)
        void *baseaddress;
        // next and previous memheaders in chain belonging to pool
-       struct memheader_s *next;
-       struct memheader_s *prev;
+       struct llist_s list;
        // pool this memheader belongs to
        struct mempool_s *pool;
        // size of the memory after the header (excluding header and sentinel2)
@@ -59,7 +59,7 @@ typedef struct mempool_s
        // should always be MEMPOOL_SENTINEL
        unsigned int sentinel1;
        // chain of individual memory allocations
-       struct memheader_s *chain;
+       struct llist_s chain;
        // POOLFLAG_*
        int flags;
        // total memory allocated in this pool (inside memheaders)