http://www.cnblogs.com/no7dw/archive/2012/09/27/2705847.html
During the time I use standalone cross compliers to build my system, I find there is NO pthread_cancel in pthread.h (/home/dengwei/standalone-toolchain/sysroot/usr/include/pthread.h).
Shocked by that, but here comes the solution, by using pthread_kill to send a signal , and adding a signal handler :
#include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <signal.h> #include <unistd.h> #include <sys/types.h> #include <errno.h> pthread_t pid; void handle_quit(int signo) { printf("in qq handle sig %d ", signo); pthread_exit(NULL); } void* test(void *arg) { signal(SIGQUIT,handle_quit ); for(int i=0;i<100;i++) { printf("in pthread test "); sleep(1); } } int main(void) { printf("begin "); pthread_create(&pid, NULL , test, NULL); sleep(3); if(pthread_kill(pid, 0)!= ESRCH) { printf("thread %d exists! ", pid); pthread_kill(pid, SIGQUIT); // pthread_exit(NULL);//this won't work printf("after kill "); } sleep(1); printf("exit in main "); }