diff options
| -rw-r--r-- | include/sched.h | 25 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/sched.h | 71 |
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 |