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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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This commit is contained in:
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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23
libc/wqueue/work_usrthread.c
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@ -1,7 +1,7 @@
/****************************************************************************
* libc/wqueue/work_usrthread.c
*
* Copyright (C) 2009-2014 Gregory Nutt. All rights reserved.
* Copyright (C) 2009-2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -375,7 +375,7 @@ int work_usrstart(void)
pthread_t usrwork;
pthread_attr_t attr;
struct sched_param param;
int status;
int ret;
/* Set up the work queue lock */
@ -386,13 +386,26 @@ int work_usrstart(void)
(void)pthread_attr_init(&attr);
(void)pthread_attr_setstacksize(&attr, CONFIG_LIB_USRWORKSTACKSIZE);
+#ifdef CONFIG_SCHED_SPORADIC
/* Get the current sporadic scheduling parameters. Those will not be
* modified.
*/
ret = set_getparam(pid, &param);
if (ret < 0)
{
int erroode = get_errno();
return -errcode;
}
#endif
param.sched_priority = CONFIG_LIB_USRWORKPRIORITY;
(void)pthread_attr_setschedparam(&attr, &param);
status = pthread_create(&usrwork, &attr, work_usrthread, NULL);
if (status != 0)
ret = pthread_create(&usrwork, &attr, work_usrthread, NULL);
if (ret != 0)
{
return -status;
return -ret;
}
/* Detach because the return value and completion status will not be