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67 lines
1.0 KiB
67 lines
1.0 KiB
#include "pthread.h"
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/*
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* pthread.c
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*
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* POSIX threads library based on linux-0.11
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*
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* Copyright (C) 2008 All rights reserved.
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*
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* 这个里面没有写多少注释，都是很简单的
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*/
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_syscall2(int, create_thread, unsigned long, start, void*, arg);
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_syscall2(int, syspthread_join, pthread_t, thread, void*, value_ptr);
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_syscall1(int, endthread, int, value);
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int pthread_attr_init(pthread_attr_t* attr) /*这个实验没有必要用到这个初始化函数*/
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{
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;;;;;
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return 0;
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}
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int pthread_create(pthread_t* thread, const pthread_attr_t* attr, void* (*start)(void*), void* arg)
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{
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int id = 0;
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if (!thread) return EINVAL;
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id = create_thread((unsigned long)start, (int*)arg);
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/*printf("here after create_thread!\n");*/
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/*stop: goto stop;*/
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if (id < 0) return errno;
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*thread = id;
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return id;
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}
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void pthread_exit(void* value_ptr)
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{
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endthread((int)value_ptr);
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}
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int pthread_join(pthread_t thread, void** value_ptr)
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{
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syspthread_join(thread, value_ptr);
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return 0;
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}
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