diff options
Diffstat (limited to 'compat/nedmalloc/nedmalloc.h')
| -rw-r--r-- | compat/nedmalloc/nedmalloc.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/compat/nedmalloc/nedmalloc.h b/compat/nedmalloc/nedmalloc.h new file mode 100644 index 000000000000..f960e66063a7 --- /dev/null +++ b/compat/nedmalloc/nedmalloc.h @@ -0,0 +1,180 @@ +/* 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 + + +/* 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 MALLOCATTR __declspec(restrict) +#endif +#ifdef __GNUC__ + #define MALLOCATTR __attribute__ ((malloc)) +#endif +#ifndef MALLOCATTR + #define MALLOCATTR +#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 NO_MALLINFO +#define NO_MALLINFO 0 +#endif + +#if !NO_MALLINFO +struct mallinfo; +#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 MALLOCATTR void * nedmalloc(size_t size) THROWSPEC; +EXTSPEC MALLOCATTR void * nedcalloc(size_t no, size_t size) THROWSPEC; +EXTSPEC MALLOCATTR void * nedrealloc(void *mem, size_t size) THROWSPEC; +EXTSPEC void nedfree(void *mem) THROWSPEC; +EXTSPEC MALLOCATTR 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 MALLOCATTR void **nedindependent_calloc(size_t elemsno, size_t elemsize, void **chunks) THROWSPEC; +EXTSPEC MALLOCATTR void **nedindependent_comalloc(size_t elems, size_t *sizes, void **chunks) 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 MALLOCATTR 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; + +/* Disables the thread cache for the calling thread, returning any existing cache +data to the central pool. +*/ +EXTSPEC void neddisablethreadcache(nedpool *p) THROWSPEC; + +EXTSPEC MALLOCATTR void * nedpmalloc(nedpool *p, size_t size) THROWSPEC; +EXTSPEC MALLOCATTR void * nedpcalloc(nedpool *p, size_t no, size_t size) THROWSPEC; +EXTSPEC MALLOCATTR void * nedprealloc(nedpool *p, void *mem, size_t size) THROWSPEC; +EXTSPEC void nedpfree(nedpool *p, void *mem) THROWSPEC; +EXTSPEC MALLOCATTR 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 MALLOCATTR void **nedpindependent_calloc(nedpool *p, size_t elemsno, size_t elemsize, void **chunks) THROWSPEC; +EXTSPEC MALLOCATTR void **nedpindependent_comalloc(nedpool *p, size_t elems, size_t *sizes, void **chunks) THROWSPEC; + +#if defined(__cplusplus) +} +#endif + +#undef MALLOCATTR +#undef EXTSPEC + +#endif |