Added a simple select() and poll() test application - it's not yet added

to the build because I still need to look into those build issues...


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1812 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/apps/select_test.c

@@ -0,0 +1,48 @@
+/* tests basic select() and poll() functionality */
+
+/* 
+** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <sys/select.h>
+#include <poll.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define FILE_NAME "/boot"
+
+int
+main(int argc, char **argv)
+{
+	fd_set readSet;
+	struct pollfd pollfd;
+	int count;
+	int file = open(FILE_NAME, O_RDONLY);
+	if (file < 0) {
+		fprintf(stderr, "Could not open \"%s\": %s\n", FILE_NAME, strerror(file));
+		return -1;
+	}
+
+	FD_ZERO(&readSet);
+	FD_SET(file, &readSet);
+
+	puts("selecting...");
+	count = select(file + 1, &readSet, NULL, NULL, NULL);
+	printf("\tselect returned: %d (read set = %ld)\n", count, FD_ISSET(file, &readSet));
+
+	pollfd.fd = file;
+	pollfd.events = POLLOUT | POLLERR;
+
+	puts("polling...");
+	count = poll(&pollfd, 1, -1);
+	printf("\tpoll returned: %d (revents = 0x%x)\n", count, pollfd.revents);
+
+	close(file);
+	return 0;
+}
+