p11-6.c

SUN Solaris8平台下进程间通信

#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include "err_exit.h"
void write_data (FILE * stream)
{
    int i;
    for (i = 0; i < 50; i++){        /* 输出50个整数 */
       fprintf (stream, "%d\n", i);
       if (ferror (stream)) 
           err_exit("Output to stream failed.\n");
    }
}
int main (void)
{
    FILE *output;
    /* 建立执行more的进程并创建通向它的输出管道 */
    output = popen ("more -n 10", "w");
    if (!output) 
        err_exit("Could not run more.\n"); 
    write_data (output);
    /* 等待popen创建的进程终止，并关闭与它相连的流 */
    pclose (output);
    return EXIT_SUCCESS;
}