linux创建、取消多线程的简单实用的模板例子

/****************************************************************** * simple.c -- multithreaded "hello world" * * Author: Mark Hays <[e-mail]> *//* Linux with glibc: *   _REENTRANT to grab thread-safe libraries *   _POSIX_SOURCE to get POSIX semantics */#ifdef __linux__#  define _REENTRANT#  define _POSIX_SOURCE#endif/* Hack for LinuxThreads */#ifdef __linux__#  define _P __P#endif#include <pthread.h>#include <string.h>/* for strerror() */#include <stdio.h>#define NTHREADS 4#define errexit(code,str)                          \  fprintf(stderr,"%s: %s\n",(str),strerror(code)); \  exit(1);/******** this is the thread code */void *hola(void * arg){  int myid=*(int *) arg;  printf("Hello, world, I'm %d\n",myid);  return arg;}/******** this is the main thread's code */int main(int argc,char *argv[]){  int worker;  pthread_t threads[NTHREADS];                /* holds thread info */  int ids[NTHREADS];                          /* holds thread args */  int errcode;                                /* holds pthread error code */  int *status;                                /* holds return code */  /* create the threads */  for (worker=0; worker<NTHREADS; worker++) {    ids[worker]=worker;    if (errcode=pthread_create(&threads[worker],/* thread struct             */       NULL,                    /* default thread attributes */       hola,                    /* start routine             */       &ids[worker])) {         /* arg to routine            */      errexit(errcode,"pthread_create");    }  }  /* reap the threads as they exit */  for (worker=0; worker<NTHREADS; worker++) {    /* wait for thread to terminate */    if (errcode=pthread_join(threads[worker],(void *) &status)) {       errexit(errcode,"pthread_join");    }    /* check thread's exit status and release its resources */    if (*status != worker) {      fprintf(stderr,"thread %d terminated abnormally\n",worker);      exit(1);    }  }  return(0);}/* EOF simple.c */

更详细的来源：http://math.arizona.edu/~swig/documentation/pthreads/#createdestroy