From e6603a9804fe53e72fb6cecd544b5a7c51dac48d Mon Sep 17 00:00:00 2001
From: foxliver <foxliver@naver.com>
Date: Thu, 25 Sep 2025 15:35:07 +0900
Subject: [PATCH] IPC Pipe sample code

---
 ipcPipe.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 ipcPipe.c

diff --git a/ipcPipe.c b/ipcPipe.c
new file mode 100644
index 0000000..7eb90b9
--- /dev/null
+++ b/ipcPipe.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#define BUFFER_SIZE     25
+#define READ_END        0
+#define WRITE_END       1
+
+int main(){
+    char write_msg[BUFFER_SIZE] = "Foxliver";
+    char read_msg[BUFFER_SIZE];
+    int fd[2];
+    pid_t pid;
+
+    pipe(fd);
+    pid = fork();
+
+    if(pid > 0){
+        close(fd[READ_END]);
+        write(fd[WRITE_END], write_msg, strlen(write_msg) + 1);
+        close(fd[WRITE_END]);
+        printf("Parent process\n");
+    }else if(pid == 0){
+        close(fd[WRITE_END]);
+
+        printf("Child process\n");
+        
+        // pipe message read
+        read(fd[READ_END], read_msg, BUFFER_SIZE);
+        printf("Read : %s\n", read_msg);
+        close(fd[READ_END]);
+    }
+
+    return 0;
+}
\ No newline at end of file