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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/generic/bits/sched.h
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/generic/bits/sched.h')
-rw-r--r--sysdeps/generic/bits/sched.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/sysdeps/generic/bits/sched.h b/sysdeps/generic/bits/sched.h
new file mode 100644
index 0000000000..91b6dca0ca
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+++ b/sysdeps/generic/bits/sched.h
@@ -0,0 +1,71 @@
+/* Definitions of constants and data structure for POSIX 1003.1b-1993
+ scheduling interface.
+ Copyright (C) 1996, 1997, 2001, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SCHED_H
+# error "Never include <bits/sched.h> directly; use <sched.h> instead."
+#endif
+
+
+/* Scheduling algorithms. */
+#define SCHED_OTHER 0
+#define SCHED_FIFO 1
+#define SCHED_RR 2
+
+/* Data structure to describe a process' schedulability. */
+struct sched_param
+{
+ int __sched_priority;
+};
+
+
+#if defined _SCHED_H && !defined __cpu_set_t_defined
+# define __cpu_set_t_defined
+/* Size definition for CPU sets. */
+# define __CPU_SETSIZE 1024
+# define __NCPUBITS (8 * sizeof (__cpu_mask))
+
+/* Type for array elements in 'cpu_set'. */
+typedef unsigned long int __cpu_mask;
+
+/* Basic access functions. */
+# define __CPUELT(cpu) ((cpu) / __NCPUBITS)
+# define __CPUMASK(cpu) ((__cpu_mask) 1 << ((cpu) % __NCPUBITS))
+
+/* Data structure to describe CPU mask. */
+typedef struct
+{
+ __cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
+} cpu_set_t;
+
+/* Access functions for CPU masks. */
+# define __CPU_ZERO(cpusetp) \
+ do { \
+ unsigned int __i; \
+ cpu_set *__arr = (cpusetp); \
+ for (__i = 0; __i < sizeof (cpu_set) / sizeof (__cpu_mask); ++__i) \
+ __arr->__bits[__i] = 0; \
+ } while (0)
+# define __CPU_SET(cpu, cpusetp) \
+ ((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu))
+# define __CPU_CLR(cpu, cpusetp) \
+ ((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu))
+# define __CPU_ISSET(cpu, cpusetp) \
+ (((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0)
+#endif