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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 #ifndef _SCHED_H_
     29 #define _SCHED_H_
     30 
     31 #include <sys/cdefs.h>
     32 #include <sys/time.h>
     33 
     34 __BEGIN_DECLS
     35 
     36 #define SCHED_NORMAL            0
     37 #define SCHED_OTHER             0
     38 #define SCHED_FIFO              1
     39 #define SCHED_RR                2
     40 
     41 struct sched_param {
     42     int sched_priority;
     43 };
     44 
     45 extern int sched_setscheduler(pid_t, int, const struct sched_param *);
     46 extern int sched_getscheduler(pid_t);
     47 extern int sched_yield(void);
     48 extern int sched_get_priority_max(int policy);
     49 extern int sched_get_priority_min(int policy);
     50 extern int sched_setparam(pid_t, const struct sched_param *);
     51 extern int sched_getparam(pid_t, struct sched_param *);
     52 extern int sched_rr_get_interval(pid_t pid, struct timespec *tp);
     53 
     54 #define CLONE_VM             0x00000100
     55 #define CLONE_FS             0x00000200
     56 #define CLONE_FILES          0x00000400
     57 #define CLONE_SIGHAND        0x00000800
     58 #define CLONE_PTRACE         0x00002000
     59 #define CLONE_VFORK          0x00004000
     60 #define CLONE_PARENT         0x00008000
     61 #define CLONE_THREAD         0x00010000
     62 #define CLONE_NEWNS          0x00020000
     63 #define CLONE_SYSVSEM        0x00040000
     64 #define CLONE_SETTLS         0x00080000
     65 #define CLONE_PARENT_SETTID  0x00100000
     66 #define CLONE_CHILD_CLEARTID 0x00200000
     67 #define CLONE_DETACHED       0x00400000
     68 #define CLONE_UNTRACED       0x00800000
     69 #define CLONE_CHILD_SETTID   0x01000000
     70 #define CLONE_STOPPED        0x02000000
     71 
     72 #ifdef _GNU_SOURCE
     73 extern int    clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
     74 #endif
     75 
     76 __END_DECLS
     77 
     78 #endif /* _SCHED_H_ */
     79