cosmopolitan/third_party/gdtoa/lock.h
Justine Tunney 155b378a39
Tidy up the threading implementation
The organization of the source files is now much more rational.
Old experiments that didn't work out are now deleted. Naming of
things like files is now more intuitive.
2022-09-10 02:56:25 -07:00

27 lines
972 B
C

#ifndef COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_
#define COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_
#include "libc/intrin/nopl.h"
#include "libc/thread/tls.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int __gdtoa_lock(void);
int __gdtoa_unlock(void);
int __gdtoa_lock1(void);
int __gdtoa_unlock1(void);
#ifdef _NOPL0
#define __gdtoa_lock() _NOPL0("__threadcalls", __gdtoa_lock)
#define __gdtoa_unlock() _NOPL0("__threadcalls", __gdtoa_unlock)
#define __gdtoa_lock1() _NOPL0("__threadcalls", __gdtoa_lock1)
#define __gdtoa_unlock1() _NOPL0("__threadcalls", __gdtoa_unlock1)
#else
#define __gdtoa_lock() (__threaded ? __gdtoa_lock() : 0)
#define __gdtoa_unlock() (__threaded ? __gdtoa_unlock() : 0)
#define __gdtoa_lock1() (__threaded ? __gdtoa_lock1() : 0)
#define __gdtoa_unlock1() (__threaded ? __gdtoa_unlock1() : 0)
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_ */