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https://github.com/jart/cosmopolitan.git
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a359de7893
This changes *NSYNC to allocate waiters on the stack so our locks don't need to depend on dynamic memory. This make our runtiem simpler, and it also fixes bugs with thread cancellation support.
54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
#ifndef COSMOPOLITAN_LIBC_RUNTIME_SYSLIB_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_SYSLIB_H_
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#include "libc/calls/struct/sigaction.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/thread/thread.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/**
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* @fileoverview System DSO interfaces provided by APE loader.
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*
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* These functions are owned by the platform C library. Regardless of
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* platform, POSIX APIs returning `long` will follow the Linux Kernel
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* `-errno` convention, and hence should be wrapped with `_sysret()`.
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*/
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#define SYSLIB_MAGIC ('s' | 'l' << 8 | 'i' << 16 | 'b' << 24)
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#define SYSLIB_VERSION 2
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typedef uint64_t dispatch_time_t;
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typedef uint64_t dispatch_semaphore_t;
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struct Syslib {
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int magic;
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int version;
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long (*fork)(void);
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long (*pipe)(int[2]);
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long (*clock_gettime)(int, struct timespec *);
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long (*nanosleep)(const struct timespec *, struct timespec *);
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long (*mmap)(void *, size_t, int, int, int, int64_t);
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int (*pthread_jit_write_protect_supported_np)(void);
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void (*pthread_jit_write_protect_np)(int);
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void (*sys_icache_invalidate)(void *, size_t);
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int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *),
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void *);
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void (*pthread_exit)(void *);
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int (*pthread_kill)(pthread_t, int);
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int (*pthread_sigmask)(int, const sigset_t *restrict, sigset_t *restrict);
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int (*pthread_setname_np)(const char *);
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dispatch_semaphore_t (*dispatch_semaphore_create)(long);
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long (*dispatch_semaphore_signal)(dispatch_semaphore_t);
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long (*dispatch_semaphore_wait)(dispatch_semaphore_t, dispatch_time_t);
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dispatch_time_t (*dispatch_walltime)(const struct timespec *, int64_t);
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/* v2 (2023-09-10) */
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long (*pthread_self)(void);
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void (*dispatch_release)(dispatch_semaphore_t);
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};
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extern struct Syslib *__syslib;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_SYSLIB_H_ */
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