253 lines
7.9 KiB
C
253 lines
7.9 KiB
C
/*
|
|
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS.
|
|
|
|
ChibiOS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @file chfactory.h
|
|
* @brief ChibiOS objects factory structures and macros.
|
|
*
|
|
* @addtogroup objects_factory
|
|
* @{
|
|
*/
|
|
|
|
#ifndef CHFACTORY_H
|
|
#define CHFACTORY_H
|
|
|
|
#if (CH_CFG_USE_FACTORY == TRUE) || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Module constants. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module pre-compile time settings. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Maximum length for object names.
|
|
* @details If the specified length is zero then the name is stored by
|
|
* pointer but this could have unintended side effects.
|
|
*/
|
|
#if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGHT) || defined(__DOXYGEN__)
|
|
#define CH_CFG_FACTORY_MAX_NAMES_LENGHT 8
|
|
#endif
|
|
|
|
/**
|
|
* @brief Enables factory for generic objects.
|
|
* @note Generic objects require the heap allocator.
|
|
*/
|
|
#if !defined(CH_CFG_FACTORY_GENERIC_BUFFER) || defined(__DOXYGEN__)
|
|
#define CH_CFG_FACTORY_GENERIC_BUFFER TRUE
|
|
#endif
|
|
|
|
/**
|
|
* @brief Enables factory for semaphores.
|
|
*/
|
|
#if !defined(CH_CFG_FACTORY_SEMAPHORES) || defined(__DOXYGEN__)
|
|
#define CH_CFG_FACTORY_SEMAPHORES TRUE
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Derived constants and error checks. */
|
|
/*===========================================================================*/
|
|
|
|
#define CH_FACTORY_REQUIRES_POOLS \
|
|
((CH_CFG_FACTORY_SEMAPHORES == TRUE))
|
|
|
|
#define CH_FACTORY_REQUIRES_HEAP \
|
|
((CH_CFG_FACTORY_GENERIC_BUFFER == TRUE))
|
|
|
|
#if (CH_CFG_FACTORY_MAX_NAMES_LENGHT < 0) || \
|
|
(CH_CFG_FACTORY_MAX_NAMES_LENGHT > 32)
|
|
#error "invalid CH_CFG_FACTORY_MAX_NAMES_LENGHT value"
|
|
#endif
|
|
|
|
#if CH_CFG_USE_MEMCORE == FALSE
|
|
#error "CH_CFG_USE_FACTORY requires CH_CFG_USE_MEMCORE"
|
|
#endif
|
|
|
|
#if (CH_FACTORY_REQUIRES_POOLS == TRUE) && (CH_CFG_USE_MEMPOOLS == FALSE)
|
|
#error "CH_CFG_USE_MEMPOOLS is required"
|
|
#endif
|
|
|
|
#if (CH_FACTORY_REQUIRES_HEAP == TRUE) && (CH_CFG_USE_HEAP == FALSE)
|
|
#error "CH_CFG_USE_HEAP is required"
|
|
#endif
|
|
|
|
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) && (CH_CFG_USE_SEMAPHORES == FALSE)
|
|
#error "CH_CFG_FACTORY_SEMAPHORES requires CH_CFG_USE_SEMAPHORES"
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Module data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Type of a dynamic object list element.
|
|
*/
|
|
typedef struct ch_dyn_element {
|
|
/**
|
|
* @brief Next dynamic object in the list.
|
|
*/
|
|
struct ch_dyn_element *next;
|
|
/**
|
|
* @brief Number of references to this object.
|
|
*/
|
|
ucnt_t refs;
|
|
#if (CH_CFG_FACTORY_MAX_NAMES_LENGHT > 0) || defined(__DOXIGEN__)
|
|
char name[CH_CFG_FACTORY_MAX_NAMES_LENGHT];
|
|
#else
|
|
const char *name;
|
|
#endif
|
|
} dyn_element_t;
|
|
|
|
/**
|
|
* @brief Type of a dynamic object list.
|
|
*/
|
|
typedef struct ch_dyn_list {
|
|
dyn_element_t *next;
|
|
} dyn_list_t;
|
|
|
|
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
|
|
/**
|
|
* @brief Type of a dynamic semaphore.
|
|
*/
|
|
typedef struct ch_dyn_object {
|
|
/**
|
|
* @brief List element of the dynamic object.
|
|
*/
|
|
dyn_element_t element;
|
|
/**
|
|
* @brief Physical objects.
|
|
* @note This requires C99.
|
|
*/
|
|
uint8_t buffer[];
|
|
} dyn_buffer_t;
|
|
#endif
|
|
|
|
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
|
|
/**
|
|
* @brief Type of a dynamic semaphore.
|
|
*/
|
|
typedef struct ch_dyn_semaphore {
|
|
/**
|
|
* @brief List element of the dynamic semaphore.
|
|
*/
|
|
dyn_element_t element;
|
|
/**
|
|
* @brief Physical semaphore.
|
|
*/
|
|
semaphore_t sem;
|
|
} dyn_semaphore_t;
|
|
#endif
|
|
|
|
/**
|
|
* @brief Type of the factory main object.
|
|
*/
|
|
typedef struct ch_objects_factory {
|
|
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
|
|
/**
|
|
* @brief List of the allocated objects.
|
|
*/
|
|
dyn_list_t obj_list;
|
|
#endif /* CH_CFG_FACTORY_GENERIC_BUFFER = TRUE */
|
|
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
|
|
/**
|
|
* @brief List of the allocated semaphores.
|
|
*/
|
|
dyn_list_t sem_list;
|
|
/**
|
|
* @brief Pool of the available semaphores.
|
|
*/
|
|
memory_pool_t sem_pool;
|
|
#endif /* CH_CFG_FACTORY_SEMAPHORES = TRUE */
|
|
} objects_factory_t;
|
|
|
|
/*===========================================================================*/
|
|
/* Module macros. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
#if !defined(__DOXYGEN__)
|
|
objects_factory_t ch_factory;
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void _factory_init(void);
|
|
// dyn_registered_object_t *chFactoryRegisterObject(const char *name,
|
|
// void *objp);
|
|
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
|
|
dyn_buffer_t *chFactoryCreateBuffer(const char *name, size_t size);
|
|
dyn_buffer_t *chFactoryFindBuffer(const char *name);
|
|
void chFactoryReleaseBuffer(dyn_buffer_t *dbp);
|
|
#endif
|
|
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
|
|
dyn_semaphore_t *chFactoryCreateSemaphore(const char *name, cnt_t n);
|
|
dyn_semaphore_t *chFactoryFindSemaphore(const char *name);
|
|
void chFactoryReleaseSemaphore(dyn_semaphore_t *dsp);
|
|
#endif
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Module inline functions. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Duplicates an object reference.
|
|
* @note This function can be used on any kind of dynamic object.
|
|
*
|
|
* @param[in] dep pointer to the element field of the object
|
|
*
|
|
* @iclass
|
|
*/
|
|
static inline dyn_element_t *chFactoryDuplicateReferenceI(dyn_element_t *dep) {
|
|
|
|
chDbgCheckClassI();
|
|
|
|
dep->refs++;
|
|
|
|
return dep;
|
|
}
|
|
|
|
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
|
|
/**
|
|
* @brief Returns the size of a generic dynamic buffer object.
|
|
*
|
|
* @return The size of the buffer object in bytes.
|
|
*
|
|
* @api
|
|
*/
|
|
static inline size_t chFactoryGetBufferSize(dyn_buffer_t *dbp) {
|
|
|
|
return chHeapGetSize(dbp) - sizeof (dyn_element_t);
|
|
}
|
|
#endif
|
|
|
|
#endif /* CH_CFG_USE_FACTORY == TRUE */
|
|
|
|
#endif /* CHFACTORY_H */
|
|
|
|
/** @} */
|