forktest.c

来自「Solaris下进程编程源码,sun公司培训用例」· C语言 代码 · 共 33 行

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

const char *filepath = "test.txt";

int main()
{
	pid_t cpid;
	int fd;

	if ( (fd = open(filepath, O_CREAT | O_RDWR)) == -1) {
		printf("Can't open file!\n");
		return -1;
	}

	if ((cpid = fork()) == -1) {
		printf("Can't create child process.\n");
		return -1;
	}
	if (cpid == 0) {
		printf("Child process\n");
		getchar();
		close(fd);
	} else {
		printf("Parent process\n");
		getchar();
		close(fd);
	}

	return 0;
}