pthread_getpecific和pthread_setspecific实现同一个线程中不同函数间共享数据的一种很好的方式。
#include#include #include pthread_key_t key; void func1() { int *tmp = (int*)pthread_getspecific(key); printf("%d is fun is %s\r\n",*tmp,__func__); } void *tthread_fun(void* args) { pthread_setspecific(key,args); int *tmp = (int*)pthread_getspecific(key); printf("%d is in zhu %s\r\n",*(int*)args,__func__); *tmp+=1; func1(); return (void*)0; } void *thread_fun(void *args) { pthread_setspecific(key,args); int *tmp = (int*)pthread_getspecific(key);//获得线程的私有空间 printf("%d is runing in %s\n",*tmp,__func__); *tmp = (*tmp)*100;//修改私有变量的值 func1(); return (void*)0; } int main() { pthread_t pa, pb; pthread_key_create(&key,NULL); pthread_t pid[3]; int a[3]={100,200,300}; int i=0; for(i=0;i<3;i++) { pthread_create(&pid[i],NULL,tthread_fun,&a[i]); pthread_join(pid[i],NULL); } return 0; }