0ad/source/lib/res/mem.h
janwas 1c1200a049 - massive overhaul of lib error code returning. int -> LibError everywhere.
- add translators from errno and GetLastError to LibError
- clarified return values of callbacks (they must return
INFO_CB_CONTINUE to continue)
- this exposed a few bugs in error handling chains (returning incorrect
values); also reduced say-nothing instances of return -1.
- move CHECK_ERR etc. macros to lib_error

This was SVN commit r3229.
2005-12-11 22:23:55 +00:00

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C
Executable File

#ifndef MEM_H
#define MEM_H
#include "handle.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*MEM_DTOR)(void* p, size_t size, uintptr_t ctx);
// mem_alloc flags
enum
{
// RES_*
MEM_ZERO = 0x1000
};
extern void* mem_alloc(size_t size, size_t align = 1, uint flags = 0, Handle* ph = 0);
#define mem_free(p) mem_free_p((void*&)p)
extern LibError mem_free_p(void*& p);
extern LibError mem_free_h(Handle& hm);
// returns 0 if the handle is invalid
extern void* mem_get_ptr(Handle h, size_t* size = 0);
extern LibError mem_get(Handle hm, u8** pp, size_t* psize);
extern Handle mem_wrap(void* p, size_t size, uint flags, void* raw_p, size_t raw_size, MEM_DTOR dtor, uintptr_t ctx, void* owner);
// exception to normal resource shutdown: must not be called before
// h_mgr_shutdown! (this is because h_mgr calls us to free memory, which
// requires the pointer -> Handle index still be in place)
extern void mem_shutdown(void);
#ifdef __cplusplus
}
#endif
#endif // #ifndef MEM_H