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/*
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* Copyright (c) Schrodinger, LLC.
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information.
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-*
-*
-*
Z* -------------------------------------------------------------------
*/
#include"MemoryCache.h"
#ifdef _MemoryCache_ON
#include"MemoryDebug.h"
#include"Setting.h"
typedef struct {
int *ptr;
unsigned int size;
} MemoryCacheRec;
typedef MemoryCacheRec MemoryCacheThread[cMemoryCache_max_block];
struct _CMemoryCache {
MemoryCacheThread Cache[cMemoryCache_max_group];
};
void MemoryCacheInit(PyMOLGlobals * G)
{
G->MemoryCache = Calloc(CMemoryCache, 1);
}
void *_MemoryCacheMalloc(PyMOLGlobals * G, unsigned int size, int group_id,
int block_id MD_FILE_LINE_Decl)
{
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory)))
return (mmalloc(size));
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *rec = &I->Cache[group_id][block_id];
if(!rec->ptr) {
rec->size = size;
rec->ptr = mmalloc(size);
} else if(rec->size < size) {
rec->size = size;
mfree(rec->ptr);
rec->ptr = mmalloc(size);
}
return (rec->ptr);
}
}
void *_MemoryCacheCalloc(PyMOLGlobals * G, unsigned int number, unsigned int size,
int group_id, int block_id MD_FILE_LINE_Decl)
{
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory)))
return (mcalloc(number, size));
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *rec = &I->Cache[group_id][block_id];
unsigned int true_size = number * size;
/* interesting result: calloc is faster than cacheing */
if(!rec->ptr) {
rec->size = true_size;
rec->ptr = mcalloc(number, size);
} else if(rec->size < true_size) {
mfree(rec->ptr);
rec->size = true_size;
rec->ptr = mcalloc(number, size);
} else {
mfree(rec->ptr);
rec->size = true_size;
rec->ptr = mcalloc(number, size);
}
return (rec->ptr);
}
}
void MemoryCacheReplaceBlock(PyMOLGlobals * G, void *ptr, int group_id, int old_block_id,
int new_block_id)
{
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory)))
return;
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *old_rec = &I->Cache[group_id][old_block_id];
MemoryCacheRec *new_rec = &I->Cache[group_id][new_block_id];
if(new_rec->ptr)
mfree(new_new->ptr);
*(new_rec) = *(old_rec);
old_rec->ptr = NULL;
}
}
void *_MemoryCacheRealloc(PyMOLGlobals * G, void *ptr, unsigned int size, int group_id,
int block_id MD_FILE_LINE_Decl)
{
/* no checking done */
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory)))
return (mrealloc(ptr, size));
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *rec = &I->Cache[group_id][block_id];
if(ptr != rec->ptr)
printf("Error: Memory Cache Mismatch 2 %d %d\n", group_id, block_id);
if(!rec->ptr) {
rec->size = size;
rec->ptr = mrealloc(ptr, size);
} else if(rec->size < size) {
rec->size = size;
rec->ptr = mrealloc(ptr, size);
}
return (rec->ptr);
}
}
void *_MemoryShrinkForSure(PyMOLGlobals * G, void *ptr, unsigned int size, int group_id,
int block_id MD_FILE_LINE_Decl)
{
/* no checking done */
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory)))
return (ReallocForSure(ptr, size)); /* NOTE: fatal if new ptr is larger than old... */
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *rec = &I->Cache[group_id][block_id];
if(ptr != rec->ptr)
printf("Error: Memory Cache Mismatch 2 %d %d\n", group_id, block_id);
if(!rec->ptr) { /* not currently cache-allocated... this should never happen */
rec->size = size;
rec->ptr = mrealloc(ptr, size);
} else if(rec->size < size) {
rec->ptr = MemoryReallocForSureSafe(ptr, size, rec->size);
rec->size = size;
} else { /* expanding size...should never happen... this should never happen */
rec->size = size;
rec->ptr = mrealloc(ptr, size);
}
return (rec->ptr);
}
}
void _MemoryCacheFree(PyMOLGlobals * G, void *ptr, int group_id, int block_id,
int force MD_FILE_LINE_Decl)
{
if((group_id < 0) || (!SettingGetGlobal_b(G, cSetting_cache_memory))) {
mfree(ptr);
return;
}
{
CMemoryCache *I = G->MemoryCache;
MemoryCacheRec *rec = &I->Cache[group_id][block_id];
if(rec->ptr && (ptr != rec->ptr))
printf("Error: Memory Cache Mismatch 2 %d %d\n", group_id, block_id);
if(force) {
if(rec->ptr)
mfree(rec->ptr);
rec->ptr = NULL;
}
}
}
void MemoryCacheDone(PyMOLGlobals * G)
{
int a, b;
CMemoryCache *I = G->MemoryCache;
for(a = 0; a < cMemoryCache_max_group; a++) {
for(b = 0; b < cMemoryCache_max_block; b++) {
MemoryCacheRec *rec = &I->Cache[a][b];
if(rec->ptr)
mfree(rec->ptr);
}
}
FreeP(G->MemoryCache);
}
#else
typedef int file_not_empty_as_per_iso_c;
#endif
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