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[Kernel] Add rt_object_get_length/rt_object_get_pointers APIs.

This commit is contained in:
Bernard Xiong 2020-04-10 00:01:58 +08:00
parent 0f57faa591
commit b1eb3943a3
2 changed files with 79 additions and 11 deletions
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3
include/rtthread.h
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@ -41,6 +41,9 @@ extern "C" {
void rt_system_object_init(void);
struct rt_object_information *
rt_object_get_information(enum rt_object_class_type type);
int rt_object_get_length(enum rt_object_class_type type);
int rt_object_get_pointers(enum rt_object_class_type type, rt_object_t *pointers, int maxlen);
void rt_object_init(struct rt_object *object,
enum rt_object_class_type type,
const char *name);

87
src/object.c
View File

@ -212,7 +212,9 @@ void rt_system_object_init(void)
/**
* This function will return the specified type of object information.
*
* @param type the type of object
* @param type the type of object, which can be
* RT_Object_Class_Thread/Semaphore/Mutex... etc
*
* @return the object type information or RT_NULL
*/
struct rt_object_information *
@ -227,6 +229,75 @@ rt_object_get_information(enum rt_object_class_type type)
}
RTM_EXPORT(rt_object_get_information);
/**
* This function will return the length of object list in object container.
*
* @param type the type of object, which can be
* RT_Object_Class_Thread/Semaphore/Mutex... etc
* @return the length of object list
*/
int rt_object_get_length(enum rt_object_class_type type)
{
int count = 0;
rt_ubase_t level;
struct rt_list_node *node = RT_NULL;
struct rt_object_information *information = RT_NULL;
information = rt_object_get_information((enum rt_object_class_type)type);
if (information == RT_NULL) return 0;
level = rt_hw_interrupt_disable();
/* get the count of objects */
rt_list_for_each(node, &(information->object_list))
{
count ++;
}
rt_hw_interrupt_enable(level);
return count;
}
RTM_EXPORT(rt_object_get_length);
/**
* This function will copy the object pointer of the specified type,
* with the maximum size specified by maxlen.
*
* @param type the type of object, which can be
* RT_Object_Class_Thread/Semaphore/Mutex... etc
* @param pointers the pointers will be saved to
* @param maxlen the maximum number of pointers can be saved
*
* @return the copied number of object pointers
*/
int rt_object_get_pointers(enum rt_object_class_type type, rt_object_t *pointers, int maxlen)
{
int index = 0;
rt_ubase_t level;
struct rt_object *object;
struct rt_list_node *node = RT_NULL;
struct rt_object_information *information = RT_NULL;
if (maxlen <= 0) return 0;
information = rt_object_get_information((enum rt_object_class_type)type);
if (information == RT_NULL) return 0;
level = rt_hw_interrupt_disable();
/* retrieve pointer of object */
rt_list_for_each(node, &(information->object_list))
{
object = rt_list_entry(node, struct rt_object, list);
pointers[index] = object;
index ++;
}
rt_hw_interrupt_enable(level);
return index;
}
RTM_EXPORT(rt_object_get_pointers);
/**
* This function will initialize an object and add it to object system
* management.
@ -482,9 +553,10 @@ rt_object_t rt_object_find(const char *name, rt_uint8_t type)
struct rt_list_node *node = RT_NULL;
struct rt_object_information *information = RT_NULL;
information = rt_object_get_information((enum rt_object_class_type)type);
/* parameter check */
if ((name == RT_NULL) || (type > RT_Object_Class_Unknown))
return RT_NULL;
if ((name == RT_NULL) || (information == RT_NULL)) return RT_NULL;
/* which is invoke in interrupt status */
RT_DEBUG_NOT_IN_INTERRUPT;
@ -493,14 +565,7 @@ rt_object_t rt_object_find(const char *name, rt_uint8_t type)
rt_enter_critical();
/* try to find object */
if (information == RT_NULL)
{
information = rt_object_get_information((enum rt_object_class_type)type);
RT_ASSERT(information != RT_NULL);
}
for (node = information->object_list.next;
node != &(information->object_list);
node = node->next)
rt_list_for_each(node, &(information->object_list))
{
object = rt_list_entry(node, struct rt_object, list);
if (rt_strncmp(object->name, name, RT_NAME_MAX) == 0)