Userland implementations for select(), pselect(), and poll().

Not yet added to the build because other stuff is missing, and there is
a problem with jam I have to sort out before I add the missing things.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1781 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/posix/poll.c

@@ -0,0 +1,16 @@
+/* 
+** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <poll.h>
+#include <syscalls.h>
+
+
+int
+poll(struct pollfd *fds, nfds_t numfds, int timeout)
+{
+	return sys_poll(fds, numfds, timeout * 1000LL);
+}
+

src/kernel/libroot/posix/sys/select.c

@@ -0,0 +1,33 @@
+/* 
+** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <sys/select.h>
+#include <syscalls.h>
+
+
+int 
+pselect(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
+	struct fd_set *errorBits, const struct timespec *tv, const sigset_t *sigMask)
+{
+	bigtime_t timeout = -1LL;
+	if (tv)
+		timeout = tv->tv_sec * 1000000LL + tv->tv_nsec / 1000LL;
+
+	return sys_select(numBits, readBits, writeBits, errorBits, timeout, sigMask);
+}
+
+
+int 
+select(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
+	struct fd_set *errorBits, struct timeval *tv)
+{
+	bigtime_t timeout = -1LL;
+	if (tv)
+		timeout = tv->tv_sec * 1000000LL + tv->tv_usec;
+
+	return sys_select(numBits, readBits, writeBits, errorBits, timeout, NULL);
+}
+