![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260828124857-6a9183b9a10a2.png\")
<\/p>\n\u7ba1\u9053：\u5c5e\u4e8e Linux \u53e4\u8001\u7684IPC \u8fdb\u7a0b\u95f4\u901a\u4fe1\u65b9\u5f0f，\u672c\u8d28\u662f\u5185\u6838\u5f00\u8f9f\u7684\u4e00\u5757\u7f13\u51b2\u533a，\u5145\u5f53\u8fdb\u7a0b\u4e4b\u95f4\u6570\u636e\u4f20\u8f93\u7684\u901a\u9053，\u5206\u4e3a\u65e0\u540d\u7ba1\u9053（pipe）\u3001\u6709\u540d\u7ba1\u9053（FIFO）\u4e24\u79cd\u3002<\/p>\n
\u65e0\u540d\u7ba1\u9053： \u53ea\u80fd\u7528\u5728\u5177\u6709\u4eb2\u7f18\u5173\u7cfb\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1（\u7236\u5b50\u8fdb\u7a0b）<\/p>\n
<\/p>\n
\u7ba1\u9053\u672c\u8d28\u662f\u5185\u6838\u4e2d\u7684\u4e00\u6bb5\u7f13\u51b2\u533a，\u9ed8\u8ba464K\u5b57\u8282，\u9075\u5faa\u961f\u5217\u5b58\u50a8\u65b9\u5f0f(FIFO，\u5148\u8fdb\u5148\u51fa)<\/p>\n
（1）\u5199\u963b\u585e：\u5f53\u7ba1\u9053\u7684\u8bfb\u5199\u7aef\u90fd\u5b58\u5728\u65f6，\u7ba1\u9053\u5199\u6ee1\u6570\u636e\u65f6，\u53d1\u751f\u5199\u963b\u585e<\/p>\n
（2）\u8bfb\u963b\u585e：\u5f53\u7ba1\u9053\u7684\u8bfb\u5199\u7aef\u90fd\u5b58\u5728\u65f6，\u7ba1\u9053\u4e3a\u7a7a\u65f6，\u8bfb\u7ba1\u9053\u53d1\u751f\u8bfb\u963b\u585e<\/p>\n
（3）\u8bfb\u8fd4\u56de0：\u5f53\u7ba1\u9053\u6ca1\u6709\u5199\u7aef，\u53ea\u6709\u8bfb\u7aef\u65f6，\u7ba1\u9053\u4e2d\u6709\u6570\u636e\u5219\u8bfb\u51fa\u6570\u636e，\u65e0\u6570\u636e\u65f6，\u4e0d\u518d\u8bfb\u963b\u585e，\u8bfb\u7ba1\u9053\u76f4\u63a5\u8fd4\u56de0\u5b57\u8282<\/p>\n
（4）\u7ba1\u9053\u7834\u88c2：\u5f53\u7ba1\u9053\u6ca1\u6709\u8bfb\u7aef，\u5411\u7ba1\u9053\u4e2d\u5199\u6570\u636e，\u53d1\u751f\u7ba1\u9053\u7834\u88c2\u5f02\u5e38<\/p>\n
（1）\u521b\u5efa\u5e76\u6253\u5f00\u7ba1\u9053：pipe();<\/p>\n
#include <unistd.h>
\nint pipe(int pipefd[2]);
\n\u529f\u80fd：\u521b\u5efa\u5e76\u6253\u5f00\u4e00\u4e2a\u65e0\u540d\u7ba1\u9053
\n\u53c2\u6570：
\n\u00a0\u00a0 \u00a0pipefd：\u7ba1\u9053\u8bfb\u7aef\u548c\u5199\u7aef\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26
\n\u00a0\u00a0 \u00a0pipefd[0]：\u8bfb \u00a0 pipefd[1]：\u5199
\n\u8fd4\u56de\u503c：
\n\u00a0\u00a0 \u00a0\u6210\u529f：0
\n\u00a0\u00a0 \u00a0\u5931\u8d25：-1<\/p>\n
（2）\u8bfb\u7ba1\u9053：read();<\/p>\n
（3）\u5199\u7ba1\u9053：write();<\/p>\n
（4）\u5173\u95ed\u7ba1\u9053：close();<\/p>\n
\u793a\u4f8b：<\/p>\n
int main(void)
\n{
\nint pipefd[2];
\nint ret = pipe(pipefd);
\nif(-1 == ret)
\n{
\nperror("pipe error");
\nreturn -1;
\n}
\npid_t pid = fork();
\nif(pid > 0)
\n{
\nclose(pipefd[0]);\/\/\u5173\u95ed\u8bfb\u7aef
\nwrite(pipefd[1], "hello son", 9);
\nclose(pipefd[1]);
\n}
\nif(0 == pid)
\n{
\nclose(pipefd[1]);\/\/\u5173\u95ed\u5199\u7aef
\nchar buff[1024] = {0};
\nread(pipefd[0], buff, sizeof(buff));
\nprintf("buff = %s\\\\n", buff);
\nclose(pipefd[0]);
\n}
\nelse
\n{
\nperror("fork error");
\n}
\nreturn 0;
\n}<\/p>\n
\u6709\u540d\u7ba1\u9053： \u53ef\u4ee5\u7528\u5728\u540c\u4e00\u4e3b\u673a，\u4efb\u610f\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260828124858-6a9183ba20408.png\")
<\/p>\n
\u6709\u540d\u7ba1\u9053\u9ed8\u8ba4\u963b\u585e\u6253\u5f00<\/p>\n
\u901a\u4fd7\u8bb2：\u8bfb\u7aef\u7b49\u5199\u7aef\u3001\u5199\u7aef\u7b49\u8bfb\u7aef，\u4e24\u8fb9\u90fd\u5230\u4f4d\u4e4b\u540e，\u901a\u4fe1\u624d\u5f00\u59cb\u3002<\/p>\n
（1）\u5199\u7ba1\u9053：\u7ba1\u9053\u7f13\u51b2\u533a\u6ee1\u7684\u65f6\u5019，write()\u4f1a\u963b\u585e，\u76f4\u5230\u8bfb\u7aef\u53d6\u8d70\u4e00\u90e8\u5206\u6570\u636e\u3002<\/p>\n
（2）\u8bfb\u7ba1\u9053：<\/p>\n
\u7ba1\u9053\u5185\u6709\u6570\u636e：read\u7acb\u523b\u8bfb\u5230\u6570\u636e\u8fd4\u56de\u3002<\/p>\n
\u7ba1\u9053\u4e3a\u7a7a：\u9ed8\u8ba4\u963b\u585e，\u7b49\u5f85\u5199\u7aef\u5199\u5165\u6570\u636e\u3002<\/p>\n
（3）\u65ad\u5f00\u60c5\u51b5<\/p>\n
\u8bfb\u7aef\u5168\u90e8\u5173\u95ed，\u5199\u7aef\u7ee7\u7eed\u5199\u6570\u636e \u2192 \u5199\u8fdb\u7a0b\u6536\u5230 SIGPIPE \u7ba1\u9053\u7834\u88c2\u4fe1\u53f7，\u8fdb\u7a0b\u5f02\u5e38\u7ec8\u6b62<\/p>\n
\u5199\u7aef\u5168\u90e8\u5173\u95ed，\u8bfb\u7aef\u53bb\u8bfb\u7ba1\u9053 \u2192 read \u8fd4\u56de 0，\u4ee3\u8868\u8bfb\u5230\u6587\u4ef6\u672b\u5c3e<\/p>\n
\u6709\u540d\u7ba1\u9053\u6570\u636e\u5b58\u653e\u5728\u5185\u6838\u7f13\u51b2\u533a，\u78c1\u76d8\u4e0a\u7684 fifo \u6587\u4ef6\u53ea\u4f5c\u4e3a\u4e00\u4e2a\u5165\u53e3\u6807\u8bc6，\u4e0d\u4f1a\u5b58\u50a8\u4f20\u8f93\u7684\u6570\u636e\u3002 \u9ed8\u8ba4\u7f13\u51b2\u533a\u5927\u5c0f：4096\u5b57\u8282，\u6570\u636e\u8bfb\u5b8c，\u7f13\u51b2\u533a\u7684\u6570\u636e\u5c31\u6d88\u5931\u3002<\/p>\n
\u6709\u540d\u7ba1\u9053\u5c5e\u4e8e\u534a\u53cc\u5de5\u901a\u4fe1，\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u5355\u5411\u4f20\u9012\u6570\u636e\u3002<\/p>\n
\u5982\u679c\u9700\u8981\u53cc\u5411\u6536\u53d1，\u5fc5\u987b\u521b\u5efa\u4e24\u6761\u72ec\u7acb\u7684\u6709\u540d\u7ba1\u9053，\u4e00\u6761\u8d1f\u8d23 A\u2192B，\u53e6\u4e00\u6761 B\u2192A\u3002<\/p>\n
（1）\u521b\u5efa\u6709\u540d\u7ba1\u9053\u6587\u4ef6：mkfifo();<\/p>\n
#include <sys\/types.h>
\n#include <sys\/stat.h>
\nint mkfifo(const char *pathname, mode_t mode);
\n\u6743\u9650\u8d4b0664\u5c31\u53ef\u4ee5
\n\u8fd4\u56de\u503c：
\n\u00a0\u00a0 \u00a0\u6210\u529f：0
\n\u00a0\u00a0 \u00a0\u5931\u8d25：-1<\/p>\n
（2）\u6253\u5f00\u7ba1\u9053\u6587\u4ef6：open();<\/p>\n
（3）\u5199\u7ba1\u9053\u6587\u4ef6：write();<\/p>\n
（4）\u8bfb\u7ba1\u9053\u6587\u4ef6：read();<\/p>\n
（5）\u5173\u95ed\u7ba1\u9053\u6587\u4ef6：close();<\/p>\n
\u8865\u5145：remove();\u5220\u9664\u4e00\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55<\/p>\n
\u7ec3\u4e601：\u4e00\u4e2a\u8fdb\u7a0b\u4ece\u7ec8\u7aef\u8bfb\u6570\u636e\u3001\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u6253\u5370\u8be5\u6570\u636e<\/p>\n
###read.c
\nint main(void)
\n{
\n int ret = mkfifo("fifo",0664);
\n if(-1 == ret && errno != EEXIST)
\n {
\n perror("mkfifo error");
\n return -1;
\n }<\/p>\n
int fd = open("fifo",O_RDONLY);
\n if(-1 == fd)
\n {
\n perror("open fifo error");
\n return -1;
\n }
\n char buff[1024] = {0};
\n while(1)
\n {
\n memset(buff,0,sizeof(buff));
\n size_t sizeread(fd,buff,sizeof(buff));
\n if(size <= 0)\/\/=0 close(write) <0 error
\n {
\n break;
\n }
\n printf("buff = %s\\\\n",buff);
\n }
\n close(fd);
\n remove("fifo");<\/p>\n
return 0;
\n}<\/p>\n
###write.c
\nint main(void)
\n{
\nint ret = mkfifo("fifo", 0664);
\nif (-1 == ret && errno != EEXIST)
\n{
\nperror("mkfifo error");
\nreturn -1;
\n}<\/p>\n
int fd = open("fifo", O_WRONLY);
\nif (-1 == fd)
\n{
\nperror("open fifo error");
\nreturn -1;
\n}
\n char buff[1024] = {0};
\n while(1)
\n {
\n fgets(buff, sizeof(buff), stdin);
\n if(0==strcmp(buff,".quit\\\\n"))
\n {
\n break;
\n }
\n write(fd,buff,strlen(buff));
\n }
\nclose(fd);<\/p>\n
\/\/remove("fifo");<\/p>\n
return 0;
\n}<\/p>\n
\u7ec3\u4e602：\u5c06\u4e00\u4e2a.png\u56fe\u7247\u901a\u8fc7\u7ba1\u9053\u62f7\u8d1d<\/p>\n
#####write.c<\/p>\n
int main(int argc, const char *argv[])
\n{
\nif (argc < 2)
\n{
\nprintf("Usage : .\/a.out <filename>\\\\n");
\nreturn -1;
\n}<\/p>\n
mkfifo("myfifo", 0664);<\/p>\n
int fdfifo = open("myfifo", O_WRONLY);
\nif (fdfifo < 0)
\n{
\nperror("open fifo error");
\nreturn -1;
\n}<\/p>\n
int fd = open(argv[1], O_RDONLY);
\nif (fd < 0)
\n{
\nperror("open error");
\nreturn -1;
\n}<\/p>\n
char buff[1024] = {0};
\nssize_t ret = 0;
\nwhile ((ret = read(fd, buff, sizeof(buff))) > 0)
\n{
\nwrite(fdfifo, buff, ret);
\n}<\/p>\n
close(fd);
\nclose(fdfifo);<\/p>\n
return 0;
\n}<\/p>\n
#####read.c<\/p>\n
int main(int argc, const char *argv[])
\n{
\nif (argc < 2)
\n{
\nprintf("Usage : .\/a.out <filename>\\\\n");
\nreturn -1;
\n}<\/p>\n
mkfifo("myfifo", 0664);<\/p>\n
int fdfifo = open("myfifo", O_RDONLY);
\nif (fdfifo < 0)
\n{
\nperror("open fifo error");
\nreturn -1;
\n}<\/p>\n
int fd = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC, 0664);
\nif (fd < 0)
\n{
\nperror("open error");
\nreturn -1;
\n}<\/p>\n
ssize_t ret = 0;
\nchar buff[1024] = {0};
\nwhile ((ret = read(fdfifo, buff, sizeof(buff))) > 0)
\n{
\nwrite(fd, buff, ret);
\n}
\nclose(fd);
\nclose(fdfifo);<\/p>\n
return 0;
\n}<\/p>\n
| \u901a\u4fe1\u8303\u56f4<\/td>\n | \u4ec5\u9650\u7236\u5b50 \/ \u5144\u5f1f（\u6709\u8840\u7f18）\u8fdb\u7a0b<\/td>\n | \u4efb\u610f\u4e24\u4e2a\u65e0\u8840\u7f18\u8fdb\u7a0b<\/td>\n<\/tr>\n |
| \u78c1\u76d8\u6587\u4ef6<\/td>\n | \u65e0\u6587\u4ef6，\u5185\u6838\u7f13\u51b2\u533a<\/td>\n | \u5b58\u5728\u7ba1\u9053\u6587\u4ef6\u6807\u8bc6<\/td>\n<\/tr>\n |
| \u6253\u5f00\u65b9\u5f0f<\/td>\n | pipe \u4e00\u6b21\u6027\u521b\u5efa\u8bfb\u5199\u4e24\u7aef<\/td>\n | \u5fc5\u987b\u5148\u7528 mkfifo \u521b\u5efa，\u518d open \u6253\u5f00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \u7ba1\u9053：\u5c5e\u4e8e Linux \u53e4\u8001\u7684IPC \u8fdb\u7a0b\u95f4\u901a\u4fe1\u65b9\u5f0f，\u672c\u8d28\u662f\u5185\u6838\u5f00\u8f9f\u7684\u4e00\u5757\u7f13\u51b2\u533a，\u5145\u5f53\u8fdb\u7a0b\u4e4b\u95f4\u6570\u636e\u4f20\u8f93\u7684\u901a\u9053，\u5206\u4e3a\u65e0\u540d\u7ba1\u9053（pipe）\u3001\u6709\u540d\u7ba1\u9053（FIFO）\u4e24\u79cd\u3002\u4e00\u3001\u65e0\u540d\u7ba1\u9053\u65e0\u540d\u7ba1\u9053： \u53ea\u80fd\u7528\u5728\u5177\u6709\u4eb2\u7f18\u5173\u7cfb\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1（\u7236\u5b50\u8fdb\u7a0b）1. \u672c\u8d28\u7ba1\u9053\u672c\u8d28\u662f\u5185\u6838\u4e2d\u7684\u4e00\u6bb5\u7f13\u51b2\u533a，\u9ed8\u8ba464K\u5b57\u8282，\u9075\u5faa\u961f\u5217\u5b58\u50a8<\/p>\n","protected":false},"author":2,"featured_media":96959,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,58,44],"topic":[],"class_list":["post-96961","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-linux","tag-44"],"yoast_head":"\n |