unlink.c

来自「这个是学习嵌入式开发的重要例子」· C语言 代码 · 共 26 行

#include <stdio.h>
#include <stdlib.h>
#include <mqueue.h>
#include <string.h>
#include <errno.h>

int main(int argc, char **argv)
{
  if (argc < 2)
  {
    fprintf(stdout, "Usage: %s <name>\n", argv[0]);
    exit(1);
  }

  // Upon successful completion, the function shall return a value of zero.   Otherwise,  the  named  message
  // queue  shall  be  unchanged  by  this function call, and the function shall return a value of -1 and set
  // errno to indicate the error.
  if (mq_unlink(argv[1]) < 0)
  {
    fprintf(stderr, "mq_unlink() failed: %s\n", strerror(errno));
    exit(1);
  }

  return 0;
}