#ifndef __OS_H_
#define __OS_H_

#include <stdint.h>
#include <sys/types.h>

#ifndef _WIN32
#include <dlfcn.h>
#include <sys/mman.h>
#else
typedef __int64 ssize_t;
#define dlsym(a, b) NULL

#define PROT_READ  0x1
#define PROT_WRITE 0x2
#define PROT_EXEC  0x4

#define MAP_FAILED    ((void*)-1)
#define MAP_PRIVATE   0x02
#define MAP_FIXED     0x10
#define MAP_ANONYMOUS 0x20
#define MAP_32BIT     0x40
#define MAP_NORESERVE 0

void* mmap(void* addr, size_t length, int prot, int flags, int fd, off_t offset);
int munmap(void* addr, size_t length);
int mprotect(void* addr, size_t len, int prot);

void* WinMalloc(size_t size);
void* WinRealloc(void* ptr, size_t size);
void* WinCalloc(size_t nmemb, size_t size);
void WinFree(void* ptr);
#endif

void* InternalMmap(void* addr, unsigned long length, int prot, int flags, int fd, ssize_t offset);
int InternalMunmap(void* addr, unsigned long length);

int GetTID(void);
int SchedYield(void);

void EmuX64Syscall(void* emu);
void EmuX86Syscall(void* emu);

void* GetSeg43Base();
void* GetSegmentBase(uint32_t desc);

// These functions only applies to Linux --------------------------
int IsBridgeSignature(char s, char c);
int IsNativeCall(uintptr_t addr, int is32bits, uintptr_t* calladdress, uint16_t* retn);
void EmuInt3(void* emu, void* addr);
void* EmuFork(void* emu, int forktype);

void PersonalityAddrLimit32Bit(void);

int IsAddrElfOrFileMapped(uintptr_t addr);
const char* GetNativeName(void* p);
// ----------------------------------------------------------------

#ifndef _WIN32
#include <setjmp.h>
#define LongJmp longjmp
#define SigSetJmp sigsetjmp
#else
#define LongJmp(a, b)
#define SigSetJmp(a, b) 0
#endif

#ifndef _WIN32
#include <setjmp.h>
#define NEW_JUMPBUFF(name) \
    static __thread JUMPBUFF name
#ifdef ANDROID
#define JUMPBUFF sigjmp_buf
#define GET_JUMPBUFF(name) name
#else
#define JUMPBUFF struct __jmp_buf_tag
#define GET_JUMPBUFF(name) &name
#endif
#else
#define JUMPBUFF int
#define NEW_JUMPBUFF(name)
#define GET_JUMPBUFF(name) NULL
#endif

#define PROT_READ  0x1
#define PROT_WRITE 0x2
#define PROT_EXEC  0x4

#if defined(__clang__) && !defined(_WIN32)
extern int isinff(float);
extern int isnanf(float);
#elif defined(_WIN32)
#define isnanf isnan
#define isinff isinf
#endif

#endif //__OS_H_