139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/*
|
|
* Copyright (C) 2015-2018 Alibaba Group Holding Limited
|
|
*/
|
|
|
|
|
|
|
|
#include "iotx_dm_internal.h"
|
|
|
|
dm_ipc_t g_dm_ipc;
|
|
|
|
static dm_ipc_t *_dm_ipc_get_ctx(void)
|
|
{
|
|
return &g_dm_ipc;
|
|
}
|
|
|
|
static void _dm_ipc_lock(void)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
if (ctx->mutex) {
|
|
HAL_MutexLock(ctx->mutex);
|
|
}
|
|
}
|
|
|
|
static void _dm_ipc_unlock(void)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
if (ctx->mutex) {
|
|
HAL_MutexUnlock(ctx->mutex);
|
|
}
|
|
}
|
|
|
|
int dm_ipc_init(int max_size)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
|
|
memset(ctx, 0, sizeof(dm_ipc_t));
|
|
|
|
/* Create Mutex */
|
|
ctx->mutex = HAL_MutexCreate();
|
|
if (ctx->mutex == NULL) {
|
|
return STATE_SYS_DEPEND_MUTEX_CREATE;
|
|
}
|
|
|
|
/* Init List */
|
|
ctx->msg_list.max_size = max_size;
|
|
INIT_LIST_HEAD(&ctx->msg_list.message_list);
|
|
|
|
return SUCCESS_RETURN;
|
|
}
|
|
|
|
void dm_ipc_deinit(void)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
dm_ipc_msg_node_t *del_node = NULL;
|
|
dm_ipc_msg_node_t *next_node = NULL;
|
|
dm_ipc_msg_t *del_msg = NULL;
|
|
|
|
if (ctx->mutex) {
|
|
HAL_MutexDestroy(ctx->mutex);
|
|
}
|
|
|
|
list_for_each_entry_safe(del_node, next_node, &ctx->msg_list.message_list, linked_list, dm_ipc_msg_node_t) {
|
|
/* Free Message */
|
|
del_msg = (dm_ipc_msg_t *)del_node->data;
|
|
if (del_msg->data) {
|
|
DM_free(del_msg->data);
|
|
}
|
|
DM_free(del_msg);
|
|
del_msg = NULL;
|
|
|
|
/* Free Node */
|
|
list_del(&del_node->linked_list);
|
|
DM_free(del_node);
|
|
}
|
|
}
|
|
|
|
int dm_ipc_msg_insert(void *data)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
dm_ipc_msg_node_t *node = NULL;
|
|
|
|
if (data == NULL) {
|
|
return STATE_USER_INPUT_INVALID;
|
|
}
|
|
|
|
_dm_ipc_lock();
|
|
iotx_state_event(ITE_STATE_DEV_MODEL, STATE_DEV_MODEL_MSGQ_OPERATION, "msg queue size: %d, max size: %d",
|
|
ctx->msg_list.size, ctx->msg_list.max_size);
|
|
if (ctx->msg_list.size >= ctx->msg_list.max_size) {
|
|
_dm_ipc_unlock();
|
|
iotx_state_event(ITE_STATE_DEV_MODEL, STATE_DEV_MODEL_MSGQ_FULL, NULL);
|
|
return STATE_DEV_MODEL_MSGQ_FULL;
|
|
}
|
|
|
|
node = DM_malloc(sizeof(dm_ipc_msg_node_t));
|
|
if (node == NULL) {
|
|
_dm_ipc_unlock();
|
|
return STATE_SYS_DEPEND_MALLOC;
|
|
}
|
|
memset(node, 0, sizeof(dm_ipc_msg_node_t));
|
|
|
|
node->data = data;
|
|
INIT_LIST_HEAD(&node->linked_list);
|
|
ctx->msg_list.size++;
|
|
list_add_tail(&node->linked_list, &ctx->msg_list.message_list);
|
|
|
|
_dm_ipc_unlock();
|
|
return SUCCESS_RETURN;
|
|
}
|
|
|
|
int dm_ipc_msg_next(void **data)
|
|
{
|
|
dm_ipc_t *ctx = _dm_ipc_get_ctx();
|
|
dm_ipc_msg_node_t *node = NULL;
|
|
|
|
if (data == NULL || *data != NULL) {
|
|
return STATE_USER_INPUT_INVALID;
|
|
}
|
|
|
|
_dm_ipc_lock();
|
|
|
|
if (list_empty(&ctx->msg_list.message_list)) {
|
|
_dm_ipc_unlock();
|
|
return STATE_DEV_MODEL_MSGQ_EMPTY;
|
|
}
|
|
|
|
node = list_first_entry(&ctx->msg_list.message_list, dm_ipc_msg_node_t, linked_list);
|
|
list_del(&node->linked_list);
|
|
ctx->msg_list.size--;
|
|
|
|
*data = node->data;
|
|
DM_free(node);
|
|
|
|
_dm_ipc_unlock();
|
|
iotx_state_event(ITE_STATE_DEV_MODEL, STATE_DEV_MODEL_MSGQ_OPERATION, "msg dequeue");
|
|
return SUCCESS_RETURN;
|
|
}
|
|
|