51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
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/*************************************************************************
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> File Name : ipc_pip_named_read.c
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> Author : TL Song
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> EMail : songtianlun@frytea.com
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> Created Time : Mon 28 Dec 2020 03:51:07 PM CST
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************************************************************************/
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//reading
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <memory.h>
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#define N 80
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int main(void) {
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int in_file;
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int count = 1;
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char buf[N];
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if((mkfifo("myfifo",0666))<0)//创建有名管道
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{
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if(errno==EEXIST)//管道已经存在
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{
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printf("The fifo is exist.\n");
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}
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else{
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printf("creat myfifo failed!\n");
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exit(-1);
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}
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}
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else
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{
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printf("created by this process.\n");
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}
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in_file = open("myfifo",O_RDONLY);
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if (in_file < 0) {
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printf("Error in opening.\n");
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exit(1);
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}
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while ((count = read(in_file,buf,N)) > 0)
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{
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printf("received from fifo: %s\n", buf);
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memset(buf,0,N);
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}
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close(in_file);
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return 0;
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}
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