--- hurd_bits_sched.h 2011-01-28 23:27:43.000000000 +0100 +++ linux_bits_sched.h 2011-01-23 21:26:16.000000000 +0100 @@ -1,6 +1,7 @@ /* Definitions of constants and data structure for POSIX 1003.1b-1993 scheduling interface. - Copyright (C) 1996, 1997, 2001, 2003, 2007 Free Software Foundation, Inc. + Copyright (C) 1996-1999,2001-2003,2005,2006,2007,2008,2009 + 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 @@ -29,12 +30,64 @@ #define SCHED_OTHER 0 #define SCHED_FIFO 1 #define SCHED_RR 2 +#ifdef __USE_GNU +# define SCHED_BATCH 3 +#endif -/* Data structure to describe a process' schedulability. */ +#ifdef __USE_MISC +/* Cloning flags. */ +# define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */ +# define CLONE_VM 0x00000100 /* Set if VM shared between processes. */ +# 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_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. */ +# 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_NEWUTS 0x04000000 /* New utsname group. */ +# define CLONE_NEWIPC 0x08000000 /* New ipcs. */ +# define CLONE_NEWUSER 0x10000000 /* New user namespace. */ +# define CLONE_NEWPID 0x20000000 /* New pid namespace. */ +# define CLONE_NEWNET 0x40000000 /* New network namespace. */ +# define CLONE_IO 0x80000000 /* Clone I/O context. */ +#endif + +/* The official definition. */ struct sched_param -{ - int __sched_priority; -}; + { + int __sched_priority; + }; + +__BEGIN_DECLS + +#ifdef __USE_MISC +/* Clone current process. */ +extern int clone (int (*__fn) (void *__arg), void *__child_stack, + int __flags, void *__arg, ...) __THROW; + +/* Unshare the specified resources. */ +extern int unshare (int __flags) __THROW; + +/* Get index of currently used CPU. */ +extern int sched_getcpu (void) __THROW; +#endif + +__END_DECLS #endif /* need schedparam */ @@ -56,7 +109,7 @@ # define __CPU_SETSIZE 1024 # define __NCPUBITS (8 * sizeof (__cpu_mask)) -/* Type for array elements in 'cpu_set'. */ +/* Type for array elements in 'cpu_set_t'. */ typedef unsigned long int __cpu_mask; /* Basic access functions. */ @@ -70,30 +123,83 @@ } cpu_set_t; /* Access functions for CPU masks. */ -# define __CPU_ZERO(cpusetp) \ +# if __GNUC_PREREQ (2, 91) +# define __CPU_ZERO_S(setsize, cpusetp) \ + do __builtin_memset (cpusetp, '\0', setsize); while (0) +# else +# define __CPU_ZERO_S(setsize, cpusetp) \ do { \ - unsigned int __i; \ - cpu_set *__arr = (cpusetp); \ - for (__i = 0; __i < sizeof (cpu_set) / sizeof (__cpu_mask); ++__i) \ - __arr->__bits[__i] = 0; \ + size_t __i; \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ + __cpu_mask *__bits = (cpusetp)->__bits; \ + for (__i = 0; __i < __imax; ++__i) \ + __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 +# define __CPU_SET_S(cpu, setsize, cpusetp) \ + (__extension__ \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ + |= __CPUMASK (__cpu)) \ + : 0; })) +# define __CPU_CLR_S(cpu, setsize, cpusetp) \ + (__extension__ \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ + &= ~__CPUMASK (__cpu)) \ + : 0; })) +# define __CPU_ISSET_S(cpu, setsize, cpusetp) \ + (__extension__ \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? ((((__const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ + & __CPUMASK (__cpu))) != 0 \ + : 0; })) + +# define __CPU_COUNT_S(setsize, cpusetp) \ + __sched_cpucount (setsize, cpusetp) + +# if __GNUC_PREREQ (2, 91) +# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ + (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0) +# else +# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ + (__extension__ \ + ({ __const __cpu_mask *__arr1 = (cpusetp1)->__bits; \ + __const __cpu_mask *__arr2 = (cpusetp2)->__bits; \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ + size_t __i; \ + for (__i = 0; __i < __imax; ++__i) \ + if (__bits[__i] != __bits[__i]) \ + break; \ + __i == __imax; })) +# endif + +# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \ + (__extension__ \ + ({ cpu_set_t *__dest = (destset); \ + __const __cpu_mask *__arr1 = (srcset1)->__bits; \ + __const __cpu_mask *__arr2 = (srcset2)->__bits; \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ + size_t __i; \ + for (__i = 0; __i < __imax; ++__i) \ + ((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \ + __dest; })) # define __CPU_ALLOC_SIZE(count) \ - ((((count) + __NCPUBITS - 1) / __NCPUBITS) * 8) + ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask)) +# define __CPU_ALLOC(count) __sched_cpualloc (count) +# define __CPU_FREE(cpuset) __sched_cpufree (cpuset) __BEGIN_DECLS extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp) - __THROW; + __THROW; +extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur; +extern void __sched_cpufree (cpu_set_t *__set) __THROW; __END_DECLS -# define __CPU_COUNT(cpusetp) \ - __sched_cpucount (sizeof (cpu_set_t), cpusetp) #endif