X-Git-Url: https://git.dlugolecki.net.pl/?a=blobdiff_plain;ds=sidebyside;f=src%2Fprocess2.c;h=b6dff4b8d2fa0703405cf9ee49e97793ee01d5e3;hb=51faabd1c82aa37c43f6521ae17c47ce62272754;hp=07a24222f6fac9fe9255c5ceed9f9c218892e76a;hpb=05e20db49d95955f0f00f546a7d02e4df023b805;p=wsti_so.git

diff --git a/src/process2.c b/src/process2.c
index 07a2422..b6dff4b 100644
--- a/src/process2.c
+++ b/src/process2.c
@@ -1,6 +1,4 @@
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
 /* open/read/write/close */
 #include <fcntl.h>
@@ -19,12 +17,24 @@ int main(void) {
 	/** Named pipe used to communicate with process3 */
 	char * write_pipe = "/tmp/process2pipe";
 
+	/** Descriptor of input pipe */
 	int read_descriptor;
+
+	/** Descriptor of output pipe */
 	int write_descriptor;
-	
+
+	/**
+	 * Buffer used for storing data from input pipe.
+	 * Data is stored in chunks of BUFFER_STEP size.
+	 * If data during reading is bigger than this value, then number of
+	 * characters is saved, and buffer is cleared for reading another chunk.
+	 */
 	char buffer[BUFFER_STEP];
-	
+
+	/** Index used when iterating buffer */
 	int i = 0;
+
+	/** Stores number of bytes read from input pipe in current iteration */
 	ssize_t count = 0;
 
 	/* Reading from process1 */
@@ -35,7 +45,9 @@ int main(void) {
 	write_descriptor = open(write_pipe, O_WRONLY);
 
 	int number_of_characters = 0;
-	
+
+	fprintf(stderr, "[%s] Init!\n", "process2");
+
 	while(1) {
 		/* Read data from input pipe */
 		count = read(read_descriptor, buffer, BUFFER_STEP);