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#ifndef SHM_HEADER_GUARD
#define SHM_HEADER_GUARD
#include "macros1.h"
#ifndef SHM_WIN32_INIT
# ifdef _WIN32
# define SHM_WIN32
# else
# undef SHM_WIN32
# endif
#else
# if SHM_WIN32_INIT
# define SHM_WIN32
# else
# undef SHM_WIN32
# endif
#endif
#ifndef SHM_TYPE_NAME
# define SHM_TYPE_NAME shm_mem_impl
#endif
#ifndef SHM_FUN_PREFIX
# define SHM_FUN_PREFIX shm_mem_impl_
#endif
#ifndef SHM_EXPORT
# define SHM_EXPORT
#endif
#ifndef __cplusplus
# define SHM_EXTERN
# include <stdbool.h>
struct SHM_TYPE_NAME;
typedef struct SHM_TYPE_NAME SHM_TYPE_NAME;
#else
# define SHM_EXTERN extern "C"
#endif
struct SHM_TYPE_NAME {
void* mem;
#ifdef SHM_WIN32
void* mutex;
void* mapped_file;
#else
int fd, size;
#endif
};
#define SHM_FUN_NAME(f) PP_CAT(SHM_FUN_PREFIX, f)
#define SHM_FUN_(r, f)SHM_EXTERN SHM_EXPORT r SHM_FUN_NAME(f)
#define SHM_FUN(r, f, ...) SHM_FUN_(r, f)(SHM_TYPE_NAME* self, __VA_ARGS__)
#define SHM_FUN0(r, f) SHM_FUN_(r, f)(SHM_TYPE_NAME* self)
SHM_FUN(void, init, const char* shm_name, const char* mutex_name, int map_size);
SHM_FUN0(void, free);
SHM_FUN0(void, lock);
SHM_FUN0(void, unlock);
SHM_FUN0(void*,ptr);
SHM_FUN0(bool, success);
#ifndef BUILD_SHM
# undef SHM_FUN
# undef SHM_FUN_NAME
#endif
#endif // SHM_HEADER_GUARD
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