mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-18 18:21:38 +00:00
207 lines
7.8 KiB
C++
207 lines
7.8 KiB
C++
/* nedalloc, an alternative malloc implementation for multiple threads without
|
|
lock contention based on dlmalloc v2.8.3. (C) 2005 Niall Douglas
|
|
|
|
Boost Software License - Version 1.0 - August 17th, 2003
|
|
|
|
Permission is hereby granted, free of charge, to any person or organization
|
|
obtaining a copy of the software and accompanying documentation covered by
|
|
this license (the "Software") to use, reproduce, display, distribute,
|
|
execute, and transmit the Software, and to prepare derivative works of the
|
|
Software, and to permit third-parties to whom the Software is furnished to
|
|
do so, all subject to the following:
|
|
|
|
The copyright notices in the Software and this entire statement, including
|
|
the above license grant, this restriction and the following disclaimer,
|
|
must be included in all copies of the Software, in whole or in part, and
|
|
all derivative works of the Software, unless such copies or derivative
|
|
works are solely in the form of machine-executable object code generated by
|
|
a source language processor.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef NEDMALLOC_H
|
|
#define NEDMALLOC_H
|
|
|
|
#define THREADCACHEMAX 65536
|
|
#define THREADCACHEMAXFREESPACE (1024*1024*4)
|
|
|
|
/* See malloc.c.h for what each function does.
|
|
|
|
REPLACE_SYSTEM_ALLOCATOR causes nedalloc's functions to be called malloc,
|
|
free etc. instead of nedmalloc, nedfree etc. You may or may not want this.
|
|
|
|
NO_NED_NAMESPACE prevents the functions from being defined in the nedalloc
|
|
namespace when in C++ (uses the global namespace instead).
|
|
|
|
EXTSPEC can be defined to be __declspec(dllexport) or
|
|
__attribute__ ((visibility("default"))) or whatever you like. It defaults
|
|
to extern.
|
|
|
|
USE_LOCKS can be 2 if you want to define your own MLOCK_T, INITIAL_LOCK,
|
|
ACQUIRE_LOCK, RELEASE_LOCK, TRY_LOCK, IS_LOCKED and NULL_LOCK_INITIALIZER.
|
|
|
|
*/
|
|
|
|
#include <stddef.h> /* for size_t */
|
|
|
|
#ifndef EXTSPEC
|
|
#define EXTSPEC extern
|
|
#endif
|
|
|
|
#if defined(_MSC_VER) && _MSC_VER>=1400
|
|
#define NEDMALLOCPTRATTR __declspec(restrict)
|
|
#endif
|
|
#ifdef __GNUC__
|
|
#define NEDMALLOCPTRATTR __attribute__ ((malloc))
|
|
#endif
|
|
#ifndef NEDMALLOCPTRATTR
|
|
#define NEDMALLOCPTRATTR
|
|
#endif
|
|
|
|
#ifdef REPLACE_SYSTEM_ALLOCATOR
|
|
#define nedmalloc malloc
|
|
#define nedcalloc calloc
|
|
#define nedrealloc realloc
|
|
#define nedfree free
|
|
#define nedmemalign memalign
|
|
#define nedmallinfo mallinfo
|
|
#define nedmallopt mallopt
|
|
#define nedmalloc_trim malloc_trim
|
|
#define nedmalloc_stats malloc_stats
|
|
#define nedmalloc_footprint malloc_footprint
|
|
#define nedindependent_calloc independent_calloc
|
|
#define nedindependent_comalloc independent_comalloc
|
|
#ifdef _MSC_VER
|
|
#define nedblksize _msize
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef _MSC_VER
|
|
#ifndef UNREFERENCED_PARAMETER
|
|
#define UNREFERENCED_PARAMETER(x) x=x
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef NO_MALLINFO
|
|
#define NO_MALLINFO 0
|
|
#endif
|
|
|
|
#if !NO_MALLINFO
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
struct mallinfo;
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(__cplusplus)
|
|
#if !defined(NO_NED_NAMESPACE)
|
|
namespace nedalloc {
|
|
#else
|
|
extern "C" {
|
|
#endif
|
|
#define THROWSPEC throw()
|
|
#else
|
|
#define THROWSPEC
|
|
#endif
|
|
|
|
/* These are the global functions */
|
|
|
|
/* Gets the usable size of an allocated block. Note this will always be bigger than what was
|
|
asked for due to rounding etc.
|
|
*/
|
|
EXTSPEC size_t nedblksize(void *mem) THROWSPEC;
|
|
|
|
EXTSPEC void nedsetvalue(void *v) THROWSPEC;
|
|
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedmalloc(size_t size) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedcalloc(size_t no, size_t size) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedrealloc(void *mem, size_t size) THROWSPEC;
|
|
EXTSPEC void nedfree(void *mem) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedmemalign(size_t alignment, size_t bytes) THROWSPEC;
|
|
#if !NO_MALLINFO
|
|
EXTSPEC struct mallinfo nedmallinfo(void) THROWSPEC;
|
|
#endif
|
|
EXTSPEC int nedmallopt(int parno, int value) THROWSPEC;
|
|
EXTSPEC int nedmalloc_trim(size_t pad) THROWSPEC;
|
|
EXTSPEC void nedmalloc_stats(void) THROWSPEC;
|
|
EXTSPEC size_t nedmalloc_footprint(void) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void **nedindependent_calloc(size_t elemsno, size_t elemsize, void **chunks) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void **nedindependent_comalloc(size_t elems, size_t *sizes, void **chunks) THROWSPEC;
|
|
|
|
/* Destroys the system memory pool used by the functions above.
|
|
Useful for when you have nedmalloc in a DLL you're about to unload.
|
|
If you call ANY nedmalloc functions after calling this you will
|
|
get a fatal exception!
|
|
*/
|
|
EXTSPEC void neddestroysyspool(void) THROWSPEC;
|
|
|
|
/* These are the pool functions */
|
|
struct nedpool_t;
|
|
typedef struct nedpool_t nedpool;
|
|
|
|
/* Creates a memory pool for use with the nedp* functions below.
|
|
Capacity is how much to allocate immediately (if you know you'll be allocating a lot
|
|
of memory very soon) which you can leave at zero. Threads specifies how many threads
|
|
will *normally* be accessing the pool concurrently. Setting this to zero means it
|
|
extends on demand, but be careful of this as it can rapidly consume system resources
|
|
where bursts of concurrent threads use a pool at once.
|
|
*/
|
|
EXTSPEC NEDMALLOCPTRATTR nedpool *nedcreatepool(size_t capacity, int threads) THROWSPEC;
|
|
|
|
/* Destroys a memory pool previously created by nedcreatepool().
|
|
*/
|
|
EXTSPEC void neddestroypool(nedpool *p) THROWSPEC;
|
|
|
|
/* Sets a value to be associated with a pool. You can retrieve this value by passing
|
|
any memory block allocated from that pool.
|
|
*/
|
|
EXTSPEC void nedpsetvalue(nedpool *p, void *v) THROWSPEC;
|
|
/* Gets a previously set value using nedpsetvalue() or zero if memory is unknown.
|
|
Optionally can also retrieve pool.
|
|
*/
|
|
EXTSPEC void *nedgetvalue(nedpool **p, void *mem) THROWSPEC;
|
|
|
|
/* Trims the thread cache for the calling thread, returning any existing cache
|
|
data to the central pool. Remember to ALWAYS call with zero if you used the
|
|
system pool. Setting disable to non-zero replicates neddisablethreadcache().
|
|
*/
|
|
EXTSPEC void nedtrimthreadcache(nedpool *p, int disable) THROWSPEC;
|
|
|
|
/* Disables the thread cache for the calling thread, returning any existing cache
|
|
data to the central pool. Remember to ALWAYS call with zero if you used the
|
|
system pool.
|
|
*/
|
|
EXTSPEC void neddisablethreadcache(nedpool *p) THROWSPEC;
|
|
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedpmalloc(nedpool *p, size_t size) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedpcalloc(nedpool *p, size_t no, size_t size) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedprealloc(nedpool *p, void *mem, size_t size) THROWSPEC;
|
|
EXTSPEC void nedpfree(nedpool *p, void *mem) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void * nedpmemalign(nedpool *p, size_t alignment, size_t bytes) THROWSPEC;
|
|
#if !NO_MALLINFO
|
|
EXTSPEC struct mallinfo nedpmallinfo(nedpool *p) THROWSPEC;
|
|
#endif
|
|
EXTSPEC int nedpmallopt(nedpool *p, int parno, int value) THROWSPEC;
|
|
EXTSPEC int nedpmalloc_trim(nedpool *p, size_t pad) THROWSPEC;
|
|
EXTSPEC void nedpmalloc_stats(nedpool *p) THROWSPEC;
|
|
EXTSPEC size_t nedpmalloc_footprint(nedpool *p) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void **nedpindependent_calloc(nedpool *p, size_t elemsno, size_t elemsize, void **chunks) THROWSPEC;
|
|
EXTSPEC NEDMALLOCPTRATTR void **nedpindependent_comalloc(nedpool *p, size_t elems, size_t *sizes, void **chunks) THROWSPEC;
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#undef EXTSPEC
|
|
|
|
#endif
|