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Add on_exit(); Re-order some logic in the task shutdown sequence. Sometimes some complex logic needs to execute when closing file descriptors and this needs to happen early while the task is still healthy

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4354 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-01-31 23:39:12 +00:00
parent ed4ee27f70
commit 35a1f247c4
13 changed files with 267 additions and 84 deletions
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nuttx/include/nuttx/sched.h
+12 -4
View File
@@ -133,12 +133,16 @@ union entry_u
};
typedef union entry_u entry_t;
/* This is the type of the function that is executed with exit() is called
* (if registered via atexit()).
/* These is the types of the functions that are executed with exit() is called
* (if registered via atexit() on on_exit()).
*/
#ifdef CONFIG_SCHED_ATEXIT
typedef void (*exitfunc_t)(void);
typedef void (*atexitfunc_t)(void);
#endif
#ifdef CONFIG_SCHED_ONEXIT
typedef void (*onexitfunc_t)(int, FAR void *)
#endif
/* POSIX Message queue */
@@ -185,7 +189,11 @@ struct _TCB
start_t start; /* Thread start function */
entry_t entry; /* Entry Point into the thread */
#ifdef CONFIG_SCHED_ATEXIT
exitfunc_t exitfunc; /* Called if exit is called. */
atexitfunc_t atexitfunc; /* Called if exit is called. */
#endif
#ifdef CONFIG_SCHED_ONEXIT
onexitfunc_t onexitfunc; /* Called if exit is called. */
FAR void *onexitarg; /* The argument passed to the function */
#endif
#ifdef CONFIG_SCHED_WAITPID /* Experimental */
sem_t exitsem; /* Support for waitpid */
nuttx/include/stdlib.h
+8 -3
View File
@@ -1,8 +1,8 @@
/****************************************************************************
* include/stdlib.h
*
* Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -132,7 +132,12 @@ EXTERN int unsetenv(const char *name);
EXTERN void exit(int status) noreturn_function;
EXTERN void abort(void) noreturn_function;
EXTERN int atexit(void (*func)(void));
#ifdef CONFIG_SCHED_ATEXIT
EXTERN int atexit(CODE void (*func)(void));
#endif
#ifdef CONFIG_SCHED_ONEXIT
EXTERN int on_exit(CODE void (*func)(int, FAR void *), FAR void *arg);
#endif
/* String to binary conversions */