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Diffstat (limited to 'REORG.TODO/posix/sched.h')
| -rw-r--r-- | REORG.TODO/posix/sched.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/REORG.TODO/posix/sched.h b/REORG.TODO/posix/sched.h new file mode 100644 index 0000000000..7037ab398d --- /dev/null +++ b/REORG.TODO/posix/sched.h @@ -0,0 +1,129 @@ +/* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface. + Copyright (C) 1996-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SCHED_H +#define _SCHED_H 1 + +#include <features.h> + +/* Get type definitions. */ +#include <bits/types.h> + +#define __need_size_t +#define __need_NULL +#include <stddef.h> + +#include <bits/types/time_t.h> +#include <bits/types/struct_timespec.h> +#ifndef __USE_XOPEN2K +# include <time.h> +#endif + +#ifndef __pid_t_defined +typedef __pid_t pid_t; +# define __pid_t_defined +#endif + + +/* Get system specific constant and data structure definitions. */ +#include <bits/sched.h> +/* Define the real names for the elements of `struct sched_param'. */ +#define sched_priority __sched_priority + + +__BEGIN_DECLS + +/* Set scheduling parameters for a process. */ +extern int sched_setparam (__pid_t __pid, const struct sched_param *__param) + __THROW; + +/* Retrieve scheduling parameters for a particular process. */ +extern int sched_getparam (__pid_t __pid, struct sched_param *__param) __THROW; + +/* Set scheduling algorithm and/or parameters for a process. */ +extern int sched_setscheduler (__pid_t __pid, int __policy, + const struct sched_param *__param) __THROW; + +/* Retrieve scheduling algorithm for a particular purpose. */ +extern int sched_getscheduler (__pid_t __pid) __THROW; + +/* Yield the processor. */ +extern int sched_yield (void) __THROW; + +/* Get maximum priority value for a scheduler. */ +extern int sched_get_priority_max (int __algorithm) __THROW; + +/* Get minimum priority value for a scheduler. */ +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; + + +#ifdef __USE_GNU +/* Access macros for `cpu_set'. */ +# define CPU_SETSIZE __CPU_SETSIZE +# define CPU_SET(cpu, cpusetp) __CPU_SET_S (cpu, sizeof (cpu_set_t), cpusetp) +# define CPU_CLR(cpu, cpusetp) __CPU_CLR_S (cpu, sizeof (cpu_set_t), cpusetp) +# define CPU_ISSET(cpu, cpusetp) __CPU_ISSET_S (cpu, sizeof (cpu_set_t), \ + cpusetp) +# define CPU_ZERO(cpusetp) __CPU_ZERO_S (sizeof (cpu_set_t), cpusetp) +# define CPU_COUNT(cpusetp) __CPU_COUNT_S (sizeof (cpu_set_t), cpusetp) + +# define CPU_SET_S(cpu, setsize, cpusetp) __CPU_SET_S (cpu, setsize, cpusetp) +# define CPU_CLR_S(cpu, setsize, cpusetp) __CPU_CLR_S (cpu, setsize, cpusetp) +# define CPU_ISSET_S(cpu, setsize, cpusetp) __CPU_ISSET_S (cpu, setsize, \ + cpusetp) +# define CPU_ZERO_S(setsize, cpusetp) __CPU_ZERO_S (setsize, cpusetp) +# define CPU_COUNT_S(setsize, cpusetp) __CPU_COUNT_S (setsize, cpusetp) + +# define CPU_EQUAL(cpusetp1, cpusetp2) \ + __CPU_EQUAL_S (sizeof (cpu_set_t), cpusetp1, cpusetp2) +# define CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ + __CPU_EQUAL_S (setsize, cpusetp1, cpusetp2) + +# define CPU_AND(destset, srcset1, srcset2) \ + __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, &) +# define CPU_OR(destset, srcset1, srcset2) \ + __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, |) +# define CPU_XOR(destset, srcset1, srcset2) \ + __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, ^) +# define CPU_AND_S(setsize, destset, srcset1, srcset2) \ + __CPU_OP_S (setsize, destset, srcset1, srcset2, &) +# define CPU_OR_S(setsize, destset, srcset1, srcset2) \ + __CPU_OP_S (setsize, destset, srcset1, srcset2, |) +# define CPU_XOR_S(setsize, destset, srcset1, srcset2) \ + __CPU_OP_S (setsize, destset, srcset1, srcset2, ^) + +# define CPU_ALLOC_SIZE(count) __CPU_ALLOC_SIZE (count) +# define CPU_ALLOC(count) __CPU_ALLOC (count) +# define CPU_FREE(cpuset) __CPU_FREE (cpuset) + + +/* 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 + +#endif /* sched.h */ |