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Add support for priority inheritance

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1581 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2009-03-08 23:33:41 +00:00
parent aafb6b8f42
commit 166b4da551
29 changed files with 634 additions and 130 deletions
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include/nuttx/sched.h
+4 -1
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@@ -1,7 +1,7 @@
/********************************************************************************
* nuttx/sched.h
*
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -177,6 +177,9 @@ struct _TCB
entry_t entry; /* Entry Point into the thread */
exitfunc_t exitfunc; /* Called if exit is called. */
ubyte sched_priority; /* Current priority of the thread */
#ifdef CONFIG_PRIORITY_INHERITANCE
ubyte base_priority; /* "Normal" priority of the thread */
#endif
ubyte task_state; /* Current state of the thread */
uint16 flags; /* Misc. general status flags */
sint16 lockcount; /* 0=preemptable (not-locked) */
include/pthread.h
+3 -3
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@@ -1,7 +1,7 @@
/********************************************************************************
* pthread.h
*
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -155,14 +155,14 @@ typedef pthread_addr_t any_t;
typedef pthread_addr_t (*pthread_startroutine_t)(pthread_addr_t);
typedef pthread_startroutine_t pthread_func_t;
struct pthread_addr_s
struct pthread_attr_s
{
size_t stacksize; /* Size of the stack allocated for the pthead */
sint16 priority; /* Priority of the pthread */
ubyte policy; /* Pthread scheduler policy */
ubyte inheritsched; /* Inherit parent prio/policy? */
};
typedef struct pthread_addr_s pthread_attr_t;
typedef struct pthread_attr_s pthread_attr_t;
typedef pid_t pthread_t;
include/semaphore.h
+4 -1
View File
@@ -1,7 +1,7 @@
/****************************************************************************
* include/semaphore.h
*
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -64,6 +64,9 @@ struct sem_s
{
sint16 semcount; /* >0 -> Num counts available */
/* <0 -> Num tasks waiting for semaphore */
#ifdef CONFIG_PRIORITY_INHERITANCE
void *holder; /* Holder TCB (actual type is _TCB) */
#endif
};
typedef struct sem_s sem_t;