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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Module Manager */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
#include "tx_api.h"
#include "tx_initialize.h"
#include "tx_thread.h"
#include "tx_timer.h"
#include "tx_queue.h"
#include "tx_event_flags.h"
#include "tx_semaphore.h"
#include "tx_mutex.h"
#include "tx_block_pool.h"
#include "tx_byte_pool.h"
#include "txm_module.h"
#include "txm_module_manager_util.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _txm_module_manager_object_pointer_get_extended PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function retrieves the object pointer of a particular type */
/* with a particular name. If the object is not found, an error is */
/* returned. Otherwise, if the object is found, the address of that */
/* object is placed in object_ptr. */
/* */
/* INPUT */
/* */
/* object_type Type of object, as follows: */
/* */
/* TXM_BLOCK_POOL_OBJECT */
/* TXM_BYTE_POOL_OBJECT */
/* TXM_EVENT_FLAGS_OBJECT */
/* TXM_MUTEX_OBJECT */
/* TXM_QUEUE_OBJECT */
/* TXM_SEMAPHORE_OBJECT */
/* TXM_THREAD_OBJECT */
/* TXM_TIMER_OBJECT */
/* search_name Name to search for */
/* search_name_length Length of the name excluding */
/* null-terminator */
/* object_ptr Pointer to the object */
/* */
/* OUTPUT */
/* */
/* TX_SUCCESS Successful completion */
/* TX_PTR_ERROR Invalid name or object ptr */
/* TX_OPTION_ERROR Invalid option type */
/* TX_NO_INSTANCE Object not found */
/* */
/* CALLS */
/* */
/* _txm_module_manager_object_name_compare */
/* String compare routine */
/* [_txm_module_manager_*_object_pointer_get] */
/* Optional external component */
/* object pointer get */
/* */
/* CALLED BY */
/* */
/* Application code */
/* */
/**************************************************************************/
UINT _txm_module_manager_object_pointer_get_extended(UINT object_type, CHAR *search_name, UINT search_name_length, VOID **object_ptr)
{
TX_INTERRUPT_SAVE_AREA
TX_THREAD *thread_ptr;
TX_TIMER *timer_ptr;
TX_QUEUE *queue_ptr;
TX_EVENT_FLAGS_GROUP *events_ptr;
TX_SEMAPHORE *semaphore_ptr;
TX_MUTEX *mutex_ptr;
TX_BLOCK_POOL *block_pool_ptr;
TX_BYTE_POOL *byte_pool_ptr;
ULONG i;
UINT status;
TXM_MODULE_INSTANCE *module_instance;
/* Determine if the name or object pointer are NULL. */
if ((search_name == TX_NULL) || (object_ptr == TX_NULL))
{
/* Return error! */
return(TX_PTR_ERROR);
}
/* Default status to not found. */
status = TX_NO_INSTANCE;
/* Set the return value to NULL. */
*object_ptr = TX_NULL;
/* Disable interrupts. */
TX_DISABLE
/* Temporarily disable preemption. This will keep other threads from creating and deleting threads. */
_tx_thread_preempt_disable++;
/* Restore interrupts. */
TX_RESTORE
/* Process relative to the object type. */
switch(object_type)
{
/* Determine if a thread object is requested. */
case TXM_THREAD_OBJECT:
{
/* Loop to find the first matching thread. */
i = 0;
thread_ptr = _tx_thread_created_ptr;
while (i < _tx_thread_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, thread_ptr -> tx_thread_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) thread_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next thread. */
thread_ptr = thread_ptr -> tx_thread_created_next;
}
break;
}
/* Determine if a timer object is requested. */
case TXM_TIMER_OBJECT:
{
/* Loop to find the first matching timer. */
i = 0;
timer_ptr = _tx_timer_created_ptr;
while (i < _tx_timer_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, timer_ptr -> tx_timer_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) timer_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next timer. */
timer_ptr = timer_ptr -> tx_timer_created_next;
}
break;
}
/* Determine if a queue object is requested. */
case TXM_QUEUE_OBJECT:
{
/* Loop to find the first matching queue. */
i = 0;
queue_ptr = _tx_queue_created_ptr;
while (i < _tx_queue_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, queue_ptr -> tx_queue_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) queue_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next queue. */
queue_ptr = queue_ptr -> tx_queue_created_next;
}
break;
}
/* Determine if a event flags object is requested. */
case TXM_EVENT_FLAGS_OBJECT:
{
/* Loop to find the first matching event flags group. */
i = 0;
events_ptr = _tx_event_flags_created_ptr;
while (i < _tx_event_flags_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, events_ptr -> tx_event_flags_group_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) events_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next event flags group. */
events_ptr = events_ptr -> tx_event_flags_group_created_next;
}
break;
}
/* Determine if a semaphore object is requested. */
case TXM_SEMAPHORE_OBJECT:
{
/* Loop to find the first matching semaphore. */
i = 0;
semaphore_ptr = _tx_semaphore_created_ptr;
while (i < _tx_semaphore_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, semaphore_ptr -> tx_semaphore_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) semaphore_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next semaphore. */
semaphore_ptr = semaphore_ptr -> tx_semaphore_created_next;
}
break;
}
/* Determine if a mutex object is requested. */
case TXM_MUTEX_OBJECT:
{
/* Loop to find the first matching mutex. */
i = 0;
mutex_ptr = _tx_mutex_created_ptr;
while (i < _tx_mutex_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, mutex_ptr -> tx_mutex_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) mutex_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next mutex. */
mutex_ptr = mutex_ptr -> tx_mutex_created_next;
}
break;
}
/* Determine if a block pool object is requested. */
case TXM_BLOCK_POOL_OBJECT:
{
/* Get the module instance. */
module_instance = _tx_thread_current_ptr -> tx_thread_module_instance_ptr;
/* Is a module making this request? */
if (module_instance != TX_NULL)
{
/* Is memory protection enabled? */
if (module_instance -> txm_module_instance_property_flags & TXM_MODULE_MEMORY_PROTECTION)
{
/* Modules with memory protection can only access block pools they created. */
status = TXM_MODULE_INVALID;
break;
}
}
/* Loop to find the first matching block pool. */
i = 0;
block_pool_ptr = _tx_block_pool_created_ptr;
while (i < _tx_block_pool_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, block_pool_ptr -> tx_block_pool_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) block_pool_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next block pool. */
block_pool_ptr = block_pool_ptr -> tx_block_pool_created_next;
}
break;
}
/* Determine if a byte pool object is requested. */
case TXM_BYTE_POOL_OBJECT:
{
/* Get the module instance. */
module_instance = _tx_thread_current_ptr -> tx_thread_module_instance_ptr;
/* Is a module making this request? */
if (module_instance != TX_NULL)
{
/* Is memory protection enabled? */
if (module_instance -> txm_module_instance_property_flags & TXM_MODULE_MEMORY_PROTECTION)
{
/* Modules with memory protection can only access block pools they created. */
status = TXM_MODULE_INVALID;
break;
}
}
/* Loop to find the first matching byte pool. */
i = 0;
byte_pool_ptr = _tx_byte_pool_created_ptr;
while (i < _tx_byte_pool_created_count)
{
/* Do we have a match? */
if (_txm_module_manager_object_name_compare(search_name, search_name_length, byte_pool_ptr -> tx_byte_pool_name))
{
/* Yes, we found it - return the necessary info! */
*object_ptr = (VOID *) byte_pool_ptr;
/* Set the the status to success! */
status = TX_SUCCESS;
break;
}
/* Increment the counter. */
i++;
/* Move to next byte pool. */
byte_pool_ptr = byte_pool_ptr -> tx_byte_pool_created_next;
}
break;
}
default:
/* Invalid object ID. */
status = TX_OPTION_ERROR;
/* External Object pointer get. */
#ifdef TXM_MODULE_ENABLE_NETX
/* Determine if there is a NetX object get request. */
if ((object_type >= TXM_NETX_OBJECTS_START) && (object_type < TXM_NETX_OBJECTS_END))
{
/* Call the NetX module object get function. */
status = _txm_module_manager_netx_object_pointer_get(object_type, search_name, search_name_length, object_ptr);
}
#endif
#ifdef TXM_MODULE_ENABLE_NETXDUO
/* Determine if there is a NetX Duo object get request. */
if ((object_type >= TXM_NETXDUO_OBJECTS_START) && (object_type < TXM_NETXDUO_OBJECTS_END))
{
/* Call the NetX Duo module object get function. */
status = _txm_module_manager_netxduo_object_pointer_get(object_type, search_name, search_name_length, object_ptr);
}
#endif
#ifdef TXM_MODULE_ENABLE_FILEX
/* Determine if there is a FileX object get request. */
if ((object_type >= TXM_FILEX_OBJECTS_START) && (object_type < TXM_FILEX_OBJECTS_END))
{
/* Call the FileX module object get function. */
status = _txm_module_manager_filex_object_pointer_get(object_type, search_name, search_name_length, object_ptr);
}
#endif
#ifdef TXM_MODULE_ENABLE_GUIX
/* Determine if there is a GUIX object get request. */
if ((object_type >= TXM_GUIX_OBJECTS_START) && (object_type < TXM_GUIX_OBJECTS_END))
{
/* Call the GUIX module object get function. */
status = _txm_module_manager_guix_object_pointer_get(object_type, search_name, search_name_length, object_ptr);
}
#endif
#ifdef TXM_MODULE_ENABLE_USBX
/* Determine if there is a USBX object get request. */
if ((object_type >= TXM_USBX_OBJECTS_START) && (object_type < TXM_USBX_OBJECTS_END))
{
/* Call the USBX object get function. */
status = _txm_module_manager_usbx_object_pointer_get(object_type, search_name, search_name_length, object_ptr);
}
#endif
break;
}
/* Disable interrupts. */
TX_DISABLE
/* Enable preemption again. */
_tx_thread_preempt_disable--;
/* Restore interrupts. */
TX_RESTORE
/* Check for preemption. */
_tx_thread_system_preempt_check();
/* Return success. */
return(status);
}
|
