目前對linux的多程序、多執行緒理解還不夠深入。在現有理解的基礎上，寫了一套多執行緒的建立、維護例程。具備以下特性：
1.批量建立，類似於註冊；
2.批量監視；
3.重啟機制
直接上**，注釋很詳細
#include #include #include #include #include #include #include //定義最大執行緒數
#define max_thread 3
//執行緒標號
typedef enumthreadnamet;
//執行緒入口函式指標
typedef void*(*cmf)(void *arg);
//執行緒控制塊
//將每個執行緒抽象成由執行緒號、執行緒入口函式、監視錯誤碼組成的結構體
typedef structthreadscbt;
//執行緒鎖
pthread_mutex_t thrlock;
threadscbt thrscb[max_thread];//有幾個執行緒就建立幾個執行緒控制塊
//執行緒0
void *thread_0(void *arg)
}//執行緒1
void *thread_1(void *arg)
}//執行緒2
void *thread_2(void *arg)
}//執行緒塊初始化，主要是對各個pfun進行註冊
void thrscbinit()
int main()
//執行緒監視函式
while(1)
for(i = 0;i < max_thread; i++)
//如果傳送訊號非法
else if(pthread_kill_err == einval)
//否則為執行緒在執行
else
}printf("\n");
pthread_mutex_unlock(&thrlock);
//每隔3秒監視一次
usleep(3000000);
}return 0;
}
wy@wy-virtual-machine:~/test$ ./t
thread:this is thread 0 i->0
thread:this is thread 2 i->0
thread:this is thread 1 i->0
watch :thread 0 is alive
watch :thread 1 is alive
watch :thread 2 is alive
thread:this is thread 1 i->1
thread:this is thread 0 i->1
thread:this is thread 2 i->1
thread:this is thread 1 i->2
thread:this is thread 0 i->2
thread:this is thread 2 i->2
watch :thread 0 is alive
watch :thread 1 is alive
watch :thread 2 is alive
thread:this is thread 1 i->3
thread:this is thread 2 i->3
thread:this is thread 0 i->3
thread:this is thread 1 i->4
thread:this is thread 2 i->4
thread:this is thread 0 i->4
watch :thread 0 is quit,restart it
watch :thread 1 is quit,restart it
watch :thread 2 is quit,restart it
thread:this is thread 0 i->0
thread:this is thread 2 i->0
thread:this is thread 1 i->0
thread:this is thread 2 i->1
thread:this is thread 0 i->1
thread:this is thread 1 i->1
thread:this is thread 0 i->2
thread:this is thread 1 i->2
thread:this is thread 2 i->2
watch :thread 0 is alive
watch :thread 1 is alive
watch :thread 2 is alive
thread:this is thread 2 i->3
thread:this is thread 1 i->3
thread:this is thread 0 i->3
thread:this is thread 1 i->4
thread:this is thread 2 i->4
thread:this is thread 0 i->4
watch :thread 0 is quit,restart it
watch :thread 1 is quit,restart it
watch :thread 2 is quit,restart it
thread:this is thread 0 i->0
thread:this is thread 2 i->0
thread:this is thread 1 i->0
thread:this is thread 2 i->1
thread:this is thread 0 i->1
thread:this is thread 1 i->1
thread:this is thread 0 i->2
thread:this is thread 2 i->2
thread:this is thread 1 i->2
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