Created named pipe to communicate with the process2.

diff --git a/Makefile.am b/Makefile.am
index 35b3782bfba64bf7126da0f79cfdab4f03239268..9ff0cfe4569b5803bdb7a73b0177ea7d72f9e5b1 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,7 +2,11 @@ AUTOMAKE_OPTIONS = gnu subdir-objects
 ACLOCAL_AMFLAGS = ${ACLOCAL_FLAGS}
 
 bin_PROGRAMS = \
-       bin/process1
+       bin/process1 \
+       bin/process2
 
 bin_process1_SOURCES = \
        src/process1.c
+
+bin_process2_SOURCES = \
+       src/process2.c

diff --git a/src/process1.c b/src/process1.c
index 695e887dac25e846a2ddc8476791e587ba5326f2..9374646fb5ae6e4baf745486e96ac0fab2695425 100644 (file)
--- a/src/process1.c
+++ b/src/process1.c
@@ -2,12 +2,15 @@
 #include <stdlib.h>
 #include <string.h>
 
+/* open/read/write/close */
+#include <fcntl.h>
+
 /** If buffer is too small to hold entire string, it is incremented by this value */
 #define BUFFER_STEP 16
 
 /**
- * Program reads entire lines of text from the standard input and returns them
- * on the standard output without changing anything.
+ * Program reads entire lines of text from the standard input and pass them
+ * to the process2 using created pipe.
  */
 int main(void) {
        /** Currently fetched from stdin character */
@@ -19,14 +22,25 @@ int main(void) {
        /** Current buffer length*/
        int buffer_length = 0;
 
-       /* Index of the current character */
+       /** Index of the current character */
        int i = 0;
-       
-       /** Temporary buffer used as a proxy between
+
+       /**
+        * Temporary buffer used as a proxy between
         * checking memory allocation and copying data to real buffer 
         */
-       char *tmp = NULL;
+       char * tmp = NULL;
+
+       /** Named pipe used to communnicate with process2 */
+       char * fifo = "/tmp/process1fifo";
+
+       /** File descriptor of pipe */
+       int file_descriptor;
 
+       mkfifo(fifo, 0666);
+
+       file_descriptor = open(fifo, O_WRONLY);
+       
        do {
                c = fgetc(stdin);
 
@@ -55,7 +69,9 @@ int main(void) {
                         * return entire string and release the memory
                         */
                        if (c == 10) {
-                               fprintf(stdout, "%s\n", buffer);
+                               buffer[i] = '\n';
+                               write(file_descriptor, buffer, ++buffer_length);
+                               /*fprintf(stdout, "%s\n", buffer);*/
 
                                buffer_length = 0;
                                i = 0;
@@ -79,7 +95,10 @@ int main(void) {
                        }
                }
        } while(c != EOF);
-       
+
+       close(fifo);
+       unlink(fifo);
+
        if (buffer) {
                free(buffer);
                buffer = NULL;