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include/, sched/, and libc/: Add support for sporadic scheduling parameters in struct sched_param, posix_spawnattr_t, and pthread_attr_t. Update all user interfaces to pass sporadic scheduling parameters. Feature is dependent on EXPERIMENTAL and no changes have yet been made to core scheduling logic.

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Gregory Nutt
2015-07-23 13:16:32 -06:00
parent 13e837b957
commit 9095e8eab4
22 changed files with 352 additions and 144 deletions
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include/pthread.h
+16 -5
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@@ -1,7 +1,7 @@
/********************************************************************************
* include/pthread.h
*
* Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009, 2011-2012, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@@ -166,10 +166,21 @@ typedef pthread_startroutine_t pthread_func_t;
struct pthread_attr_s
{
size_t stacksize; /* Size of the stack allocated for the pthread */
int16_t priority; /* Priority of the pthread */
uint8_t policy; /* Pthread scheduler policy */
uint8_t inheritsched; /* Inherit parent prio/policy? */
uint8_t priority; /* Priority of the pthread */
uint8_t policy; /* Pthread scheduler policy */
uint8_t inheritsched; /* Inherit parent prio/policy? */
#ifdef CONFIG_SCHED_SPORADIC
uint8_t low_priority; /* Low scheduling priority*/
uint8_t max_repl; /* Maximum pending replenishments */
#endif
size_t stacksize; /* Size of the stack allocated for the pthread */
#ifdef CONFIG_SCHED_SPORADIC
struct timespec repl_period; /* Replenishment period */
struct timespec budget; /* Initial budget */
#endif
};
typedef struct pthread_attr_s pthread_attr_t;