main.c 파일 내용
[code:1]
#include <stdlib.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
extern int abcd;
void cdef(void *arg);
void abcde(void *arg);
extern pthread_mutex_t mymutex=PTHREAD_MUTEX_INITIALIZER;
int main()
{
pthread_t tid;
pid_t pid;
if ( pthread_create(&tid, NULL, (void*) &abcde, NULL )) {
printf("error creating thread.");
}