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-rw-r--r--include/sched.h25
-rw-r--r--libc/sysdeps/linux/common/bits/sched.h71
2 files changed, 86 insertions, 10 deletions
diff --git a/include/sched.h b/include/sched.h
index 9ed13b10c..b19569eb5 100644
--- a/include/sched.h
+++ b/include/sched.h
@@ -1,5 +1,5 @@
/* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface.
- Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1996,1997,1999,2001-2003,2004 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
@@ -62,11 +62,24 @@ extern int sched_get_priority_min (int __algorithm) __THROW;
/* Get the SCHED_RR interval for the named process. */
extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
-/* These are Linux specific. */
-extern int __clone (int (*__fn) (void *__arg), void *__child_stack,
- int __flags, void *__arg, ...);
-extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
- size_t __child_stack_size, int __flags, void *__arg, ...);
+
+#if 0 /*def __USE_GNU*/
+/* Access macros for `cpu_set'. */
+#define CPU_SETSIZE __CPU_SETSIZE
+#define CPU_SET(cpu, cpusetp) __CPU_SET (cpu, cpusetp)
+#define CPU_CLR(cpu, cpusetp) __CPU_CLR (cpu, cpusetp)
+#define CPU_ISSET(cpu, cpusetp) __CPU_ISSET (cpu, cpusetp)
+#define CPU_ZERO(cpusetp) __CPU_ZERO (cpusetp)
+
+
+/* Set the CPU affinity for a task */
+extern int sched_setaffinity (__pid_t __pid, size_t __cpusetsize,
+ __const cpu_set_t *__cpuset) __THROW;
+
+/* Get the CPU affinity for a task */
+extern int sched_getaffinity (__pid_t __pid, size_t __cpusetsize,
+ cpu_set_t *__cpuset) __THROW;
+#endif
__END_DECLS
diff --git a/libc/sysdeps/linux/common/bits/sched.h b/libc/sysdeps/linux/common/bits/sched.h
index 5c10d85d4..2a53819ea 100644
--- a/libc/sysdeps/linux/common/bits/sched.h
+++ b/libc/sysdeps/linux/common/bits/sched.h
@@ -1,6 +1,6 @@
/* Definitions of constants and data structure for POSIX 1003.1b-1993
scheduling interface.
- Copyright (C) 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1996-1999,2001-2003,2005,2006 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
@@ -29,6 +29,9 @@
#define SCHED_OTHER 0
#define SCHED_FIFO 1
#define SCHED_RR 2
+#if 0 /*def __USE_GNU*/
+# define SCHED_BATCH 3
+#endif
#ifdef __USE_MISC
/* Cloning flags. */
@@ -37,10 +40,27 @@
# define CLONE_FS 0x00000200 /* Set if fs info shared between processes. */
# define CLONE_FILES 0x00000400 /* Set if open files shared between processes. */
# define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared. */
-# define CLONE_PID 0x00001000 /* Set if pid shared. */
# define CLONE_PTRACE 0x00002000 /* Set if tracing continues on the child. */
# define CLONE_VFORK 0x00004000 /* Set if the parent wants the child to
wake it up on mm_release. */
+# define CLONE_PARENT 0x00008000 /* Set if we want to have the same
+ parent as the cloner. */
+# define CLONE_THREAD 0x00010000 /* Set to add to same thread group. */
+#if 0
+# define CLONE_NEWNS 0x00020000 /* Set to create new namespace. */
+# define CLONE_SYSVSEM 0x00040000 /* Set to shared SVID SEM_UNDO semantics. */
+# define CLONE_SETTLS 0x00080000 /* Set TLS info. */
+# define CLONE_PARENT_SETTID 0x00100000 /* Store TID in userlevel buffer
+ before MM copy. */
+# define CLONE_CHILD_CLEARTID 0x00200000 /* Register exit futex and memory
+ location to clear. */
+# define CLONE_DETACHED 0x00400000 /* Create clone detached. */
+# define CLONE_UNTRACED 0x00800000 /* Set if the tracing process can't
+ force CLONE_PTRACE on this clone. */
+# define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in
+ the child. */
+# define CLONE_STOPPED 0x02000000 /* Start in stopped state. */
+#endif
#endif
/* The official definition. */
@@ -51,16 +71,22 @@ struct sched_param
__BEGIN_DECLS
-/* Clone current process. */
#ifdef __USE_MISC
+/* Clone current process. */
extern int clone (int (*__fn) (void *__arg), void *__child_stack,
- int __flags, void *__arg) __THROW;
+ int __flags, void *__arg, ...) __THROW;
+
+#if 0
+/* Unshare the specified resources. */
+extern int unshare (int __flags) __THROW;
+#endif
#endif
__END_DECLS
#endif /* need schedparam */
+#if 0
#if !defined __defined_schedparam \
&& (defined __need_schedparam || defined _SCHED_H)
# define __defined_schedparam 1
@@ -71,3 +97,40 @@ struct __sched_param
};
# undef __need_schedparam
#endif
+
+
+#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_t *__arr = (cpusetp); \
+ for (__i = 0; __i < sizeof (cpu_set_t) / 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
+#endif