pipe.c

AnimalProcessing/Fundamentals/pipe.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <err.h>
+
+
+void piped(){
+
+
+    int fd[2];
+    if(pipe(fd) == -1){
+        printf("an error occured\n");
+        return ;
+    }
+
+
+    pid_t pid = fork();
+
+
+    if(pid < 0){ 
+        printf("an error occured\n");
+        return ;
+    }
+    
+    // Child
+    if (pid == 0) {
+        
+        close(fd[0]);
+
+        char *str = "Hello from your child !\n";
+        
+        write(fd[1], str, strlen(str) + 1);
+        close(fd[1]);
+        
+        exit(0);
+    }
+    // Mommy
+    else {
+        close(fd[1]);
+
+        char buffer[2048];
+        read(fd[0], buffer, sizeof(buffer));
+        
+        printf("My child sends me : %s\n", buffer);
+        close(fd[0]); 
+        wait(NULL);
+
+        return;
+    }
+}
+
+
+int main(){ piped();}