From: Matthias Kruk <m@m10k.eu>
Date: Sat, 15 Aug 2020 06:14:30 +0000 (+0900)
Subject: sys/test: Implement simple test for reading and writing on a pipe
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=dec7f5460b967c69d77ba42ba0afbb9c644385a8;p=corax

sys/test: Implement simple test for reading and writing on a pipe
---

diff --git a/sys/test/main.c b/sys/test/main.c
index 4f991c9..d827f64 100644
--- a/sys/test/main.c
+++ b/sys/test/main.c
@@ -2,10 +2,13 @@
 #include <crxstd.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <errno.h>
 
 int main(int argc, char *argv[])
 {
 	char buf[128];
+	char rxbuf[128];
 	int fds[2];
 	int ret_val;
 
@@ -20,6 +23,24 @@ int main(int argc, char *argv[])
 	ret_val = snprintf(buf, sizeof(buf), "fds[0] = %d, fds[1] = %d\n", fds[0], fds[1]);
 	debug(buf, ret_val);
 
+	ret_val = snprintf(buf, sizeof(buf), "Hello, pipe world!");
+	ret_val = write(fds[1], buf, ret_val);
+
+	ret_val = snprintf(buf, sizeof(buf), "write() = %d\n", ret_val);
+	debug(buf, ret_val);
+
+	memset(buf, 0, sizeof(buf));
+	memset(rxbuf, 0, sizeof(rxbuf));
+
+	ret_val = read(fds[0], rxbuf, sizeof(rxbuf));
+
+	if(ret_val < 0) {
+		ret_val = snprintf(buf, sizeof(buf), "read() = %d errno=%s\n", ret_val, strerror(errno));
+	} else {
+		ret_val = snprintf(buf, sizeof(buf), "read() = %d [%s]\n", ret_val, rxbuf);
+	}
+	debug(buf, ret_val);
+
 	while(1) {
 		#if 0
 		struct cxmsg msg;