554 lines
16 KiB
C
554 lines
16 KiB
C
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/*
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ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio.
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This file is part of ChibiOS.
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ChibiOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file chfactory.h
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* @brief ChibiOS objects factory structures and macros.
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*
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* @addtogroup oslib_objects_factory
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* @{
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*/
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#ifndef CHFACTORY_H
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#define CHFACTORY_H
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#if (CH_CFG_USE_FACTORY == TRUE) || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Module constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Module pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief Maximum length for object names.
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* @details If the specified length is zero then the name is stored by
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* pointer but this could have unintended side effects.
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*/
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#if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGTH) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_MAX_NAMES_LENGTH 8
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#endif
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/**
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* @brief Enables the registry of generic objects.
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*/
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#if !defined(CH_CFG_FACTORY_OBJECTS_REGISTRY) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
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#endif
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/**
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* @brief Enables factory for generic buffers.
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*/
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#if !defined(CH_CFG_FACTORY_GENERIC_BUFFERS) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
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#endif
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/**
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* @brief Enables factory for semaphores.
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*/
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#if !defined(CH_CFG_FACTORY_SEMAPHORES) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_SEMAPHORES TRUE
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#endif
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/**
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* @brief Enables factory for mailboxes.
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*/
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#if !defined(CH_CFG_FACTORY_MAILBOXES) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_MAILBOXES TRUE
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#endif
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/**
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* @brief Enables factory for objects FIFOs.
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*/
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#if !defined(CH_CFG_FACTORY_OBJ_FIFOS) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
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#endif
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/**
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* @brief Enables factory for objects FIFOs.
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*/
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#if !defined(CH_CFG_FACTORY_OBJ_FIFOS) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
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#endif
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/**
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* @brief Enables factory for Pipes.
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*/
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#if !defined(CH_CFG_FACTORY_PIPES) || defined(__DOXYGEN__)
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#define CH_CFG_FACTORY_PIPES TRUE
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#endif
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) && (CH_CFG_USE_SEMAPHORES == FALSE)
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/*lint -save -e767 [20.5] Valid because the #undef.*/
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#undef CH_CFG_FACTORY_SEMAPHORES
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#define CH_CFG_FACTORY_SEMAPHORES FALSE
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/*lint restore*/
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#endif
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#if (CH_CFG_FACTORY_MAILBOXES == TRUE) && (CH_CFG_USE_MAILBOXES == FALSE)
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/*lint -save -e767 [20.5] Valid because the #undef.*/
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#undef CH_CFG_FACTORY_MAILBOXES
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#define CH_CFG_FACTORY_MAILBOXES FALSE
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/*lint restore*/
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#endif
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#if (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) && (CH_CFG_USE_OBJ_FIFOS == FALSE)
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/*lint -save -e767 [20.5] Valid because the #undef.*/
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#undef CH_CFG_FACTORY_OBJ_FIFOS
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#define CH_CFG_FACTORY_OBJ_FIFOS FALSE
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/*lint restore*/
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#endif
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#if (CH_CFG_FACTORY_PIPES == TRUE) && (CH_CFG_USE_PIPES == FALSE)
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/*lint -save -e767 [20.5] Valid because the #undef.*/
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#undef CH_CFG_FACTORY_PIPES
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#define CH_CFG_FACTORY_PIPES FALSE
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/*lint restore*/
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#endif
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#define CH_FACTORY_REQUIRES_POOLS \
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((CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE) || \
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(CH_CFG_FACTORY_SEMAPHORES == TRUE))
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#define CH_FACTORY_REQUIRES_HEAP \
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((CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) || \
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(CH_CFG_FACTORY_MAILBOXES == TRUE) || \
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(CH_CFG_FACTORY_OBJ_FIFOS == TRUE) || \
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(CH_CFG_FACTORY_PIPES == TRUE))
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#if (CH_CFG_FACTORY_MAX_NAMES_LENGTH < 0) || \
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(CH_CFG_FACTORY_MAX_NAMES_LENGTH > 32)
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#error "invalid CH_CFG_FACTORY_MAX_NAMES_LENGTH value"
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#endif
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#if (CH_CFG_USE_MUTEXES == FALSE) && (CH_CFG_USE_SEMAPHORES == FALSE)
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#error "CH_CFG_USE_FACTORY requires CH_CFG_USE_MUTEXES and/or CH_CFG_USE_SEMAPHORES"
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#endif
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#if CH_CFG_USE_MEMCORE == FALSE
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#error "CH_CFG_USE_FACTORY requires CH_CFG_USE_MEMCORE"
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#endif
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#if CH_FACTORY_REQUIRES_POOLS && (CH_CFG_USE_MEMPOOLS == FALSE)
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#error "CH_CFG_USE_MEMPOOLS is required"
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#endif
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#if CH_FACTORY_REQUIRES_HEAP && (CH_CFG_USE_HEAP == FALSE)
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#error "CH_CFG_USE_HEAP is required"
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#endif
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/*===========================================================================*/
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/* Module data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Type of a dynamic object list element.
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*/
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typedef struct ch_dyn_element {
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/**
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* @brief Next dynamic object in the list.
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*/
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struct ch_dyn_element *next;
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/**
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* @brief Number of references to this object.
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*/
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ucnt_t refs;
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#if (CH_CFG_FACTORY_MAX_NAMES_LENGTH > 0) || defined(__DOXYGEN__)
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char name[CH_CFG_FACTORY_MAX_NAMES_LENGTH];
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#else
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const char *name;
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#endif
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} dyn_element_t;
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/**
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* @brief Type of a dynamic object list.
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*/
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typedef struct ch_dyn_list {
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dyn_element_t *next;
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} dyn_list_t;
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#if (CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a registered object.
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*/
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typedef struct ch_registered_static_object {
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/**
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* @brief List element of the registered object.
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*/
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dyn_element_t element;
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/**
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* @brief Pointer to the object.
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* @note The type of the object is not stored in anyway.
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*/
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void *objp;
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} registered_object_t;
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#endif
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#if (CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a dynamic buffer object.
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*/
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typedef struct ch_dyn_object {
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/**
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* @brief List element of the dynamic buffer object.
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*/
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dyn_element_t element;
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/*lint -save -e9038 [18.7] Required by design.*/
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/**
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* @brief The buffer.
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* @note This requires C99.
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*/
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uint8_t buffer[];
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/*lint restore*/
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} dyn_buffer_t;
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#endif
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#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a dynamic semaphore.
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*/
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typedef struct ch_dyn_semaphore {
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/**
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* @brief List element of the dynamic semaphore.
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*/
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dyn_element_t element;
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/**
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* @brief The semaphore.
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*/
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semaphore_t sem;
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} dyn_semaphore_t;
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#endif
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#if (CH_CFG_FACTORY_MAILBOXES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a dynamic buffer object.
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*/
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typedef struct ch_dyn_mailbox {
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/**
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* @brief List element of the dynamic buffer object.
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*/
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dyn_element_t element;
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/**
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* @brief The mailbox.
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*/
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mailbox_t mbx;
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/*lint -save -e9038 [18.7] Required by design.*/
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/**
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* @brief Messages buffer.
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* @note This requires C99.
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*/
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msg_t msgbuf[];
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/*lint restore*/
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} dyn_mailbox_t;
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#endif
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#if (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a dynamic buffer object.
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*/
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typedef struct ch_dyn_objects_fifo {
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/**
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* @brief List element of the dynamic buffer object.
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*/
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dyn_element_t element;
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/**
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* @brief The objects FIFO.
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*/
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objects_fifo_t fifo;
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/*lint -save -e9038 [18.7] Required by design.*/
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/**
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* @brief Messages buffer.
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* @note This open array is followed by another area containing the
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* objects, this area is not represented in this structure.
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* @note This requires C99.
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*/
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msg_t msgbuf[];
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/*lint restore*/
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} dyn_objects_fifo_t;
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#endif
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#if (CH_CFG_FACTORY_PIPES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Type of a dynamic pipe object.
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*/
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typedef struct ch_dyn_pipe {
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/**
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* @brief List element of the dynamic pipe object.
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*/
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dyn_element_t element;
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/**
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* @brief The pipe.
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*/
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pipe_t pipe;
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/*lint -save -e9038 [18.7] Required by design.*/
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/**
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* @brief Messages buffer.
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* @note This requires C99.
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*/
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uint8_t buffer[];
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/*lint restore*/
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} dyn_pipe_t;
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#endif
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/**
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* @brief Type of the factory main object.
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*/
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typedef struct ch_objects_factory {
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/**
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* @brief Factory access mutex or semaphore.
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*/
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#if (CH_CFG_USE_MUTEXES == TRUE) || defined(__DOXYGEN__)
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mutex_t mtx;
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#else
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semaphore_t sem;
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#endif
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/**
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* @brief List of the registered objects.
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*/
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dyn_list_t obj_list;
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/**
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* @brief Pool of the available registered objects.
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*/
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memory_pool_t obj_pool;
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#if (CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief List of the allocated buffer objects.
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*/
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dyn_list_t buf_list;
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#endif /* CH_CFG_FACTORY_GENERIC_BUFFERS = TRUE */
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#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief List of the allocated semaphores.
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*/
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dyn_list_t sem_list;
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/**
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* @brief Pool of the available semaphores.
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*/
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memory_pool_t sem_pool;
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#endif /* CH_CFG_FACTORY_SEMAPHORES = TRUE */
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#if (CH_CFG_FACTORY_MAILBOXES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief List of the allocated buffer objects.
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*/
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dyn_list_t mbx_list;
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#endif /* CH_CFG_FACTORY_MAILBOXES = TRUE */
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#if (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief List of the allocated "objects FIFO" objects.
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*/
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dyn_list_t fifo_list;
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#endif /* CH_CFG_FACTORY_OBJ_FIFOS = TRUE */
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#if (CH_CFG_FACTORY_PIPES == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief List of the allocated pipe objects.
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*/
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dyn_list_t pipe_list;
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#endif /* CH_CFG_FACTORY_PIPES = TRUE */
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} objects_factory_t;
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/*===========================================================================*/
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/* Module macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#if !defined(__DOXYGEN__)
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extern objects_factory_t ch_factory;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void _factory_init(void);
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#if (CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE) || defined(__DOXYGEN__)
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registered_object_t *chFactoryRegisterObject(const char *name,
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void *objp);
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registered_object_t *chFactoryFindObject(const char *name);
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registered_object_t *chFactoryFindObjectByPointer(void *objp);
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void chFactoryReleaseObject(registered_object_t *rop);
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#endif
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#if (CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) || defined(__DOXYGEN__)
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dyn_buffer_t *chFactoryCreateBuffer(const char *name, size_t size);
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dyn_buffer_t *chFactoryFindBuffer(const char *name);
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void chFactoryReleaseBuffer(dyn_buffer_t *dbp);
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#endif
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#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXYGEN__)
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dyn_semaphore_t *chFactoryCreateSemaphore(const char *name, cnt_t n);
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dyn_semaphore_t *chFactoryFindSemaphore(const char *name);
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void chFactoryReleaseSemaphore(dyn_semaphore_t *dsp);
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#endif
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#if (CH_CFG_FACTORY_MAILBOXES == TRUE) || defined(__DOXYGEN__)
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dyn_mailbox_t *chFactoryCreateMailbox(const char *name, size_t n);
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dyn_mailbox_t *chFactoryFindMailbox(const char *name);
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void chFactoryReleaseMailbox(dyn_mailbox_t *dmp);
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#endif
|
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#if (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) || defined(__DOXYGEN__)
|
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dyn_objects_fifo_t *chFactoryCreateObjectsFIFO(const char *name,
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size_t objsize,
|
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size_t objn,
|
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unsigned objalign);
|
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dyn_objects_fifo_t *chFactoryFindObjectsFIFO(const char *name);
|
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void chFactoryReleaseObjectsFIFO(dyn_objects_fifo_t *dofp);
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#endif
|
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#if (CH_CFG_FACTORY_PIPES == TRUE) || defined(__DOXYGEN__)
|
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dyn_pipe_t *chFactoryCreatePipe(const char *name, size_t size);
|
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dyn_pipe_t *chFactoryFindPipe(const char *name);
|
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void chFactoryReleasePipe(dyn_pipe_t *dpp);
|
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#endif
|
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#ifdef __cplusplus
|
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}
|
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#endif
|
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|
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/*===========================================================================*/
|
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/* Module inline functions. */
|
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/*===========================================================================*/
|
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|
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/**
|
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* @brief Duplicates an object reference.
|
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* @note This function can be used on any kind of dynamic object.
|
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*
|
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* @param[in] dep pointer to the element field of the object
|
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* @return The duplicated object reference.
|
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*
|
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* @api
|
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*/
|
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static inline dyn_element_t *chFactoryDuplicateReference(dyn_element_t *dep) {
|
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|
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dep->refs++;
|
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|
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return dep;
|
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}
|
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|
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#if (CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE) || defined(__DOXYGEN__)
|
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|
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/**
|
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|
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* @brief Returns the pointer to the inner registered object.
|
||
|
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*
|
||
|
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* @param[in] rop registered object reference
|
||
|
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* @return The pointer to the registered object.
|
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|
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*
|
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|
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* @api
|
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|
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*/
|
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static inline void *chFactoryGetObject(registered_object_t *rop) {
|
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|
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|
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return rop->objp;
|
||
|
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}
|
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|
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#endif /* CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE */
|
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|
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|
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#if (CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) || defined(__DOXYGEN__)
|
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|
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/**
|
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|
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* @brief Returns the size of a generic dynamic buffer object.
|
||
|
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*
|
||
|
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* @param[in] dbp dynamic buffer object reference
|
||
|
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* @return The size of the buffer object in bytes.
|
||
|
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*
|
||
|
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* @api
|
||
|
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*/
|
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|
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static inline size_t chFactoryGetBufferSize(dyn_buffer_t *dbp) {
|
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|
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|
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return chHeapGetSize(dbp) - sizeof (dyn_element_t);
|
||
|
|
}
|
||
|
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|
||
|
|
/**
|
||
|
|
* @brief Returns the pointer to the inner buffer.
|
||
|
|
*
|
||
|
|
* @param[in] dbp dynamic buffer object reference
|
||
|
|
* @return The pointer to the dynamic buffer.
|
||
|
|
*
|
||
|
|
* @api
|
||
|
|
*/
|
||
|
|
static inline uint8_t *chFactoryGetBuffer(dyn_buffer_t *dbp) {
|
||
|
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|
||
|
|
return dbp->buffer;
|
||
|
|
}
|
||
|
|
#endif /* CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE */
|
||
|
|
|
||
|
|
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXYGEN__)
|
||
|
|
/**
|
||
|
|
* @brief Returns the pointer to the inner semaphore.
|
||
|
|
*
|
||
|
|
* @param[in] dsp dynamic semaphore object reference
|
||
|
|
* @return The pointer to the semaphore.
|
||
|
|
*
|
||
|
|
* @api
|
||
|
|
*/
|
||
|
|
static inline semaphore_t *chFactoryGetSemaphore(dyn_semaphore_t *dsp) {
|
||
|
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|
||
|
|
return &dsp->sem;
|
||
|
|
}
|
||
|
|
#endif /* CH_CFG_FACTORY_SEMAPHORES == TRUE */
|
||
|
|
|
||
|
|
#if (CH_CFG_FACTORY_MAILBOXES == TRUE) || defined(__DOXYGEN__)
|
||
|
|
/**
|
||
|
|
* @brief Returns the pointer to the inner mailbox.
|
||
|
|
*
|
||
|
|
* @param[in] dmp dynamic mailbox object reference
|
||
|
|
* @return The pointer to the mailbox.
|
||
|
|
*
|
||
|
|
* @api
|
||
|
|
*/
|
||
|
|
static inline mailbox_t *chFactoryGetMailbox(dyn_mailbox_t *dmp) {
|
||
|
|
|
||
|
|
return &dmp->mbx;
|
||
|
|
}
|
||
|
|
#endif /* CH_CFG_FACTORY_MAILBOXES == TRUE */
|
||
|
|
|
||
|
|
#if (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) || defined(__DOXYGEN__)
|
||
|
|
/**
|
||
|
|
* @brief Returns the pointer to the inner objects FIFO.
|
||
|
|
*
|
||
|
|
* @param[in] dofp dynamic "objects FIFO" object reference
|
||
|
|
* @return The pointer to the objects FIFO.
|
||
|
|
*
|
||
|
|
* @api
|
||
|
|
*/
|
||
|
|
static inline objects_fifo_t *chFactoryGetObjectsFIFO(dyn_objects_fifo_t *dofp) {
|
||
|
|
|
||
|
|
return &dofp->fifo;
|
||
|
|
}
|
||
|
|
#endif /* CH_CFG_FACTORY_OBJ_FIFOS == TRUE */
|
||
|
|
|
||
|
|
#if (CH_CFG_FACTORY_PIPES == TRUE) || defined(__DOXYGEN__)
|
||
|
|
/**
|
||
|
|
* @brief Returns the pointer to the inner pipe.
|
||
|
|
*
|
||
|
|
* @param[in] dpp dynamic pipe object reference
|
||
|
|
* @return The pointer to the pipe.
|
||
|
|
*
|
||
|
|
* @api
|
||
|
|
*/
|
||
|
|
static inline pipe_t *chFactoryGetPipe(dyn_pipe_t *dpp) {
|
||
|
|
|
||
|
|
return &dpp->pipe;
|
||
|
|
}
|
||
|
|
#endif /* CH_CFG_FACTORY_PIPES == TRUE */
|
||
|
|
|
||
|
|
#endif /* CH_CFG_USE_FACTORY == TRUE */
|
||
|
|
|
||
|
|
#endif /* CHFACTORY_H */
|
||
|
|
|
||
|
|
/** @} */
|