--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/druntime/import/stdc/posix/sched.d	Wed Nov 12 00:19:18 2008 +0100
@@ -0,0 +1,132 @@
+/**
+ * D header file for POSIX.
+ *
+ * Copyright: Public Domain
+ * License:   Public Domain
+ * Authors:   Sean Kelly
+ * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
+ */
+module stdc.posix.sched;
+
+private import stdc.posix.config;
+public import stdc.posix.time;
+public import stdc.posix.sys.types;
+
+extern (C):
+
+//
+// Required
+//
+/*
+struct sched_param
+{
+    int sched_priority (THR)
+    int sched_ss_low_priority (SS|TSP)
+    struct timespec sched_ss_repl_period (SS|TSP)
+    struct timespec sched_ss_init_budget (SS|TSP)
+    int sched_ss_max_repl (SS|TSP)
+}
+
+SCHED_FIFO
+SCHED_RR
+SCHED_SPORADIC (SS|TSP)
+SCHED_OTHER
+
+int sched_getparam(pid_t, sched_param*);
+int sched_getscheduler(pid_t);
+int sched_setparam(pid_t, in sched_param*);
+int sched_setscheduler(pid_t, int, in sched_param*);
+*/
+
+version( linux )
+{
+    struct sched_param
+    {
+        int sched_priority;
+    }
+
+    const SCHED_OTHER   = 0;
+    const SCHED_FIFO    = 1;
+    const SCHED_RR      = 2;
+    //SCHED_SPORADIC (SS|TSP)
+}
+else version( darwin )
+{
+    const SCHED_OTHER   = 1;
+    const SCHED_FIFO    = 4;
+    const SCHED_RR      = 2;
+    // SCHED_SPORADIC seems to be unavailable
+
+    private const __SCHED_PARAM_SIZE__ = 4;
+
+    struct sched_param
+    {
+        int                         sched_priority;
+        byte[__SCHED_PARAM_SIZE__]  opaque;
+    }
+}
+else version( freebsd )
+{
+    struct sched_param
+    {
+        int sched_priority;
+    }
+
+    const SCHED_FIFO    = 1;
+    const SCHED_OTHER   = 2;
+    const SCHED_RR      = 3;
+    //SCHED_SPORADIC (SS|TSP)
+}
+
+int sched_getparam(pid_t, sched_param*);
+int sched_getscheduler(pid_t);
+int sched_setparam(pid_t, in sched_param*);
+int sched_setscheduler(pid_t, int, in sched_param*);
+
+//
+// Thread (THR)
+//
+/*
+int sched_yield();
+*/
+
+version( linux )
+{
+    int sched_yield();
+}
+else version( darwin )
+{
+    int sched_yield();
+}
+else version( freebsd )
+{
+    int sched_yield();
+}
+
+//
+// Scheduling (TPS)
+//
+/*
+int sched_get_priority_max(int);
+int sched_get_priority_min(int);
+int sched_rr_get_interval(pid_t, timespec*);
+*/
+
+version( linux )
+{
+    int sched_get_priority_max(int);
+    int sched_get_priority_min(int);
+    int sched_rr_get_interval(pid_t, timespec*);
+}
+else version( darwin )
+{
+    int sched_get_priority_min(int);
+    int sched_get_priority_max(int);
+    //int sched_rr_get_interval(pid_t, timespec*); // FIXME: unavailable?
+}
+else version( freebsd )
+{
+    int sched_get_priority_min(int);
+    int sched_get_priority_max(int);
+    int sched_rr_get_interval(pid_t, timespec*);
+}