From: Philip Homburg <philip@cs.vu.nl>
Date: Mon, 11 Jul 2005 13:08:00 +0000 (+0000)
Subject: Usleep implementation based on select.
X-Git-Tag: v3.1.0~629
X-Git-Url: http://zhaoyanbai.com/repos/doc/tz-art.htm?a=commitdiff_plain;h=0cabfc76eeae77a680a6d965818d688caa2b38a0;p=minix.git

Usleep implementation based on select.
---

diff --git a/lib/posix/Makefile b/lib/posix/Makefile
index 56b0f258a..a985633a7 100755
--- a/lib/posix/Makefile
+++ b/lib/posix/Makefile
@@ -101,6 +101,7 @@ OBJECTS	= \
 	$(LIBRARY)(priority.o) \
 	$(LIBRARY)(readlink.o) \
 	$(LIBRARY)(symlink.o) \
+	$(LIBRARY)(usleep.o) \
 
 $(LIBRARY):	$(OBJECTS)
 	aal cr $@ *.o
@@ -388,3 +389,6 @@ $(LIBRARY)(lstat.o):	lstat.c
 $(LIBRARY)(symlink.o):	symlink.c
 	$(CC1) symlink.c
 
+$(LIBRARY)(usleep.o):	usleep.c
+	$(CC1) usleep.c
+
diff --git a/lib/posix/usleep.c b/lib/posix/usleep.c
new file mode 100644
index 000000000..964e2aac8
--- /dev/null
+++ b/lib/posix/usleep.c
@@ -0,0 +1,18 @@
+/*
+lib/posix/usleep.c
+*/
+
+#include <unistd.h>
+#include <sys/select.h>
+#include <sys/time.h>
+
+int usleep(useconds_t useconds)
+{
+	int r;
+	struct timeval tv;
+
+	tv.tv_sec= useconds/1000000;
+	tv.tv_usec= useconds % 1000000;
+	r= select(0, NULL, NULL, NULL, &tv);
+	return r;
+}