diff options
Diffstat (limited to 'cpukit/posix/src/key.c')
| -rw-r--r-- | cpukit/posix/src/key.c | 175 |
1 files changed, 32 insertions, 143 deletions
diff --git a/cpukit/posix/src/key.c b/cpukit/posix/src/key.c index a39e8d6479..0309a26da5 100644 --- a/cpukit/posix/src/key.c +++ b/cpukit/posix/src/key.c @@ -1,158 +1,47 @@ /** * @file * - * @brief POSIX Keys Manager Initialization - * @ingroup POSIX_KEY Key + * @ingroup POSIX_KEY + * + * @brief POSIX Keys Information with Zero Objects */ /* - * Copyright (c) 2012 Zhongwei Yao. - * COPYRIGHT (c) 1989-2014. - * On-Line Applications Research Corporation (OAR). - * Copyright (c) 2016 embedded brains GmbH. + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (C) 2018 embedded brains GmbH * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #if HAVE_CONFIG_H #include "config.h" #endif -#include <limits.h> - -#include <rtems/config.h> -#include <rtems/sysinit.h> - -#include <rtems/posix/keyimpl.h> -#include <rtems/score/userextimpl.h> -#include <rtems/score/wkspace.h> - -Objects_Information _POSIX_Keys_Information; - -Freechain_Control _POSIX_Keys_Keypool; - -static uint32_t _POSIX_Keys_Get_keypool_bump_count( void ) -{ - uint32_t max = Configuration.maximum_key_value_pairs; - - return _Objects_Is_unlimited( max ) ? - _Objects_Maximum_per_allocation( max ) : 0; -} - -static uint32_t _POSIX_Keys_Get_initial_keypool_size( void ) -{ - uint32_t max = Configuration.maximum_key_value_pairs; - - return _Objects_Maximum_per_allocation( max ); -} - -static void _POSIX_Keys_Initialize_keypool( void ) -{ - _Freechain_Initialize( - &_POSIX_Keys_Keypool, - _Workspace_Allocate_or_fatal_error, - _POSIX_Keys_Get_initial_keypool_size(), - sizeof( POSIX_Keys_Key_value_pair ) - ); -} - -POSIX_Keys_Key_value_pair * _POSIX_Keys_Key_value_allocate( void ) -{ - return (POSIX_Keys_Key_value_pair *) _Freechain_Get( - &_POSIX_Keys_Keypool, - _Workspace_Allocate, - _POSIX_Keys_Get_keypool_bump_count(), - sizeof( POSIX_Keys_Key_value_pair ) - ); -} - -static void _POSIX_Keys_Run_destructors( Thread_Control *the_thread ) -{ - while ( true ) { - ISR_lock_Context lock_context; - RBTree_Node *node; - - _Objects_Allocator_lock(); - _POSIX_Keys_Key_value_acquire( the_thread, &lock_context ); - - node = _RBTree_Root( &the_thread->Keys.Key_value_pairs ); - if ( node != NULL ) { - POSIX_Keys_Key_value_pair *key_value_pair; - pthread_key_t key; - void *value; - POSIX_Keys_Control *the_key; - void ( *destructor )( void * ); - - key_value_pair = POSIX_KEYS_RBTREE_NODE_TO_KEY_VALUE_PAIR( node ); - key = key_value_pair->key; - value = key_value_pair->value; - _RBTree_Extract( - &the_thread->Keys.Key_value_pairs, - &key_value_pair->Lookup_node - ); - - _POSIX_Keys_Key_value_release( the_thread, &lock_context ); - _POSIX_Keys_Key_value_free( key_value_pair ); - - the_key = _POSIX_Keys_Get( key ); - _Assert( the_key != NULL ); - destructor = the_key->destructor; - - _Objects_Allocator_unlock(); - - if ( destructor != NULL && value != NULL ) { - ( *destructor )( value ); - } - } else { - _POSIX_Keys_Key_value_release( the_thread, &lock_context ); - _Objects_Allocator_unlock(); - break; - } - } -} - -static void _POSIX_Keys_Restart_run_destructors( - Thread_Control *executing, - Thread_Control *the_thread -) -{ - (void) executing; - _POSIX_Keys_Run_destructors( the_thread ); -} - -static User_extensions_Control _POSIX_Keys_Extensions = { - .Callouts = { - .thread_restart = _POSIX_Keys_Restart_run_destructors, - .thread_terminate = _POSIX_Keys_Run_destructors - } -}; - -/** - * @brief This routine performs the initialization necessary for this manager. - */ -static void _POSIX_Keys_Manager_initialization(void) -{ - _Objects_Initialize_information( - &_POSIX_Keys_Information, /* object information table */ - OBJECTS_POSIX_API, /* object API */ - OBJECTS_POSIX_KEYS, /* object class */ - Configuration.maximum_keys, - /* maximum objects of this class */ - sizeof( POSIX_Keys_Control ), - /* size of this object's control block */ - OBJECTS_NO_STRING_NAME, /* maximum length of each object's name */ - NULL /* Proxy extraction support callout */ - ); - - _POSIX_Keys_Initialize_keypool(); - - _User_extensions_Add_API_set( &_POSIX_Keys_Extensions ); -} +#include <rtems/posix/key.h> -RTEMS_SYSINIT_ITEM( - _POSIX_Keys_Manager_initialization, - RTEMS_SYSINIT_POSIX_KEYS, - RTEMS_SYSINIT_ORDER_MIDDLE +OBJECTS_INFORMATION_DEFINE_ZERO( + _POSIX_Keys, + OBJECTS_POSIX_API, + OBJECTS_POSIX_KEYS, + OBJECTS_NO_STRING_NAME ); |