From 7edb9281a2e9da28fdaa64a7a71905a24e0dc6f8 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Fri, 5 Nov 1999 19:02:03 +0000
Subject: Following comments from Eric Norum <eric@cls.usask.ca>, a fairly
 substantial upgrade of newlibc.c occurred.  Now the user extension data area
 is used rather than notepads and as many routines as possible were split into
 other files further reducing the minimum footprint of an RTEMS executable.

---
 c/src/lib/libc/no_posix.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 c/src/lib/libc/no_posix.c

(limited to 'c/src/lib/libc/no_posix.c')

diff --git a/c/src/lib/libc/no_posix.c b/c/src/lib/libc/no_posix.c
new file mode 100644
index 0000000000..9973230e44
--- /dev/null
+++ b/c/src/lib/libc/no_posix.c
@@ -0,0 +1,101 @@
+/*
+ *  Marginal implementations of some POSIX API routines
+ *  to be used when POSIX is disabled.
+ *
+ *    + getpid
+ *    + _getpid_r
+ *    + kill
+ *    + _kill_r
+ *    + __kill
+ *    + sleep
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+
+#include <unistd.h>
+
+/*
+ *  These are directly supported (and completely correct) in the posix api.
+ */
+
+#if !defined(RTEMS_POSIX_API)
+pid_t getpid(void)
+{
+  return 0;
+}
+
+#if defined(RTEMS_NEWLIB)
+#include <sys/reent.h>
+
+pid_t _getpid_r(
+  struct _reent *ptr
+)
+{
+  return getpid();
+}
+#endif
+
+#endif
+
+#if !defined(RTEMS_POSIX_API)
+int kill( pid_t pid, int sig )
+{
+  return 0;
+}
+
+int _kill_r( pid_t pid, int sig )
+{
+  return 0;
+}
+#endif
+
+int __kill( pid_t pid, int sig )
+{
+  return 0;
+}
+
+
+/*
+ *  3.4.3 Delay Process Execution, P1003.1b-1993, p. 81
+ *
+ *  $Id$
+ */ 
+
+#include <time.h>
+#include <unistd.h> 
+
+#include <rtems.h>
+
+#if !defined(RTEMS_POSIX_API)
+unsigned int sleep(
+  unsigned int seconds
+)
+{
+  rtems_status_code status;
+  rtems_interval    ticks_per_second;
+  rtems_interval    ticks;
+
+  status = rtems_clock_get(
+  RTEMS_CLOCK_GET_TICKS_PER_SECOND,
+  &ticks_per_second
+  );
+
+  ticks = seconds * ticks_per_second;
+
+  status = rtems_task_wake_after( ticks );
+
+  /*
+   *  Returns the "unslept" amount of time.  In RTEMS signals are not
+   *  interruptable, so tasks really sleep all of the requested time.
+   */
+
+  return 0;
+}
+#endif
+
-- 
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