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Added INSTALL file.
[wsti_so.git]
/
src
/
process1.c
diff --git
a/src/process1.c
b/src/process1.c
index 695e887dac25e846a2ddc8476791e587ba5326f2..f4a1392d84398e72d440e0d63cfb6b64690b46a7 100644
(file)
--- a/
src/process1.c
+++ b/
src/process1.c
@@
-2,12
+2,15
@@
#include <stdlib.h>
#include <string.h>
#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
/**
/** 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
return
s them
- *
on the standard output without changing anything
.
+ * Program reads entire lines of text from the standard input and
pas
s them
+ *
to the process2 using created pipe
.
*/
int main(void) {
/** Currently fetched from stdin character */
*/
int main(void) {
/** Currently fetched from stdin character */
@@
-19,14
+22,25
@@
int main(void) {
/** Current buffer length*/
int buffer_length = 0;
/** Current buffer length*/
int buffer_length = 0;
- /* Index of the current character */
+ /*
*
Index of the current character */
int i = 0;
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
*/
* checking memory allocation and copying data to real buffer
*/
- char *tmp = NULL;
+ char * tmp = NULL;
+
+ /** Named pipe used to communnicate with process2 */
+ char * write_pipe = "/tmp/process1pipe";
+
+ /** File descriptor of pipe */
+ int file_descriptor;
+ mkfifo(write_pipe, 0666);
+
+ file_descriptor = open(write_pipe, O_WRONLY);
+
do {
c = fgetc(stdin);
do {
c = fgetc(stdin);
@@
-48,14
+62,17
@@
int main(void) {
}
/*
}
/*
- * If there were no errors parse data.
+ * If there were no errors or it was not just an empty newline:
+ * parse data.
*/
*/
- if (c != EOF) {
+ if (c != EOF
|| ((i == 0) && (c == 10))
) {
/* If newline has been found
* return entire string and release the memory
*/
/* If newline has been found
* return entire string and release the memory
*/
- if (c == 10) {
- fprintf(stdout, "%s\n", buffer);
+ if (c == 10 && (i != 0)) {
+ buffer[i] = '\n';
+ write(file_descriptor, buffer, strlen(buffer));
+ fprintf(stderr, "[%s] buffer: %s/%d\n", "process1", buffer, strlen(buffer));
buffer_length = 0;
i = 0;
buffer_length = 0;
i = 0;
@@
-79,7
+96,10
@@
int main(void) {
}
}
} while(c != EOF);
}
}
} while(c != EOF);
-
+
+ close(write_pipe);
+ unlink(write_pipe);
+
if (buffer) {
free(buffer);
buffer = NULL;
if (buffer) {
free(buffer);
buffer = NULL;