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-rw-r--r--gps/utils/msg_q.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/gps/utils/msg_q.c b/gps/utils/msg_q.c
deleted file mode 100644
index e412e78..0000000
--- a/gps/utils/msg_q.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/* Copyright (c) 2011-2012,2014 The Linux Foundation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- * * Neither the name of The Linux Foundation, nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "msg_q.h"
-
-#define LOG_TAG "LocSvc_utils_q"
-#include <platform_lib_includes.h>
-#include "linked_list.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <pthread.h>
-
-typedef struct msg_q {
- void* msg_list; /* Linked list to store information */
- pthread_cond_t list_cond; /* Condition variable for waiting on msg queue */
- pthread_mutex_t list_mutex; /* Mutex for exclusive access to message queue */
- int unblocked; /* Has this message queue been unblocked? */
-} msg_q;
-
-/*===========================================================================
-FUNCTION convert_linked_list_err_type
-
-DESCRIPTION
- Converts from one set of enum values to another.
-
- linked_list_val: Value to convert to msg_q_enum_type
-
-DEPENDENCIES
- N/A
-
-RETURN VALUE
- Corresponding linked_list_enum_type in msg_q_enum_type
-
-SIDE EFFECTS
- N/A
-
-===========================================================================*/
-static msq_q_err_type convert_linked_list_err_type(linked_list_err_type linked_list_val)
-{
- switch( linked_list_val )
- {
- case eLINKED_LIST_SUCCESS:
- return eMSG_Q_SUCCESS;
- case eLINKED_LIST_INVALID_PARAMETER:
- return eMSG_Q_INVALID_PARAMETER;
- case eLINKED_LIST_INVALID_HANDLE:
- return eMSG_Q_INVALID_HANDLE;
- case eLINKED_LIST_UNAVAILABLE_RESOURCE:
- return eMSG_Q_UNAVAILABLE_RESOURCE;
- case eLINKED_LIST_INSUFFICIENT_BUFFER:
- return eMSG_Q_INSUFFICIENT_BUFFER;
-
- case eLINKED_LIST_FAILURE_GENERAL:
- default:
- return eMSG_Q_FAILURE_GENERAL;
- }
-}
-
-/* ----------------------- END INTERNAL FUNCTIONS ---------------------------------------- */
-
-/*===========================================================================
-
- FUNCTION: msg_q_init
-
- ===========================================================================*/
-msq_q_err_type msg_q_init(void** msg_q_data)
-{
- if( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_PARAMETER;
- }
-
- msg_q* tmp_msg_q;
- tmp_msg_q = (msg_q*)calloc(1, sizeof(msg_q));
- if( tmp_msg_q == NULL )
- {
- LOC_LOGE("%s: Unable to allocate space for message queue!\n", __FUNCTION__);
- return eMSG_Q_FAILURE_GENERAL;
- }
-
- if( linked_list_init(&tmp_msg_q->msg_list) != 0 )
- {
- LOC_LOGE("%s: Unable to initialize storage list!\n", __FUNCTION__);
- free(tmp_msg_q);
- return eMSG_Q_FAILURE_GENERAL;
- }
-
- if( pthread_mutex_init(&tmp_msg_q->list_mutex, NULL) != 0 )
- {
- LOC_LOGE("%s: Unable to initialize list mutex!\n", __FUNCTION__);
- linked_list_destroy(&tmp_msg_q->msg_list);
- free(tmp_msg_q);
- return eMSG_Q_FAILURE_GENERAL;
- }
-
- if( pthread_cond_init(&tmp_msg_q->list_cond, NULL) != 0 )
- {
- LOC_LOGE("%s: Unable to initialize msg q cond var!\n", __FUNCTION__);
- linked_list_destroy(&tmp_msg_q->msg_list);
- pthread_mutex_destroy(&tmp_msg_q->list_mutex);
- free(tmp_msg_q);
- return eMSG_Q_FAILURE_GENERAL;
- }
-
- tmp_msg_q->unblocked = 0;
-
- *msg_q_data = tmp_msg_q;
-
- return eMSG_Q_SUCCESS;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_init2
-
- ===========================================================================*/
-const void* msg_q_init2()
-{
- void* q = NULL;
- if (eMSG_Q_SUCCESS != msg_q_init(&q)) {
- q = NULL;
- }
- return q;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_destroy
-
- ===========================================================================*/
-msq_q_err_type msg_q_destroy(void** msg_q_data)
-{
- if( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_HANDLE;
- }
-
- msg_q* p_msg_q = (msg_q*)*msg_q_data;
-
- linked_list_destroy(&p_msg_q->msg_list);
- pthread_mutex_destroy(&p_msg_q->list_mutex);
- pthread_cond_destroy(&p_msg_q->list_cond);
-
- p_msg_q->unblocked = 0;
-
- free(*msg_q_data);
- *msg_q_data = NULL;
-
- return eMSG_Q_SUCCESS;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_snd
-
- ===========================================================================*/
-msq_q_err_type msg_q_snd(void* msg_q_data, void* msg_obj, void (*dealloc)(void*))
-{
- msq_q_err_type rv;
- if( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_HANDLE;
- }
- if( msg_obj == NULL )
- {
- LOC_LOGE("%s: Invalid msg_obj parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_PARAMETER;
- }
-
- msg_q* p_msg_q = (msg_q*)msg_q_data;
-
- pthread_mutex_lock(&p_msg_q->list_mutex);
- LOC_LOGV("%s: Sending message with handle = 0x%08X\n", __FUNCTION__, msg_obj);
-
- if( p_msg_q->unblocked )
- {
- LOC_LOGE("%s: Message queue has been unblocked.\n", __FUNCTION__);
- pthread_mutex_unlock(&p_msg_q->list_mutex);
- return eMSG_Q_UNAVAILABLE_RESOURCE;
- }
-
- rv = convert_linked_list_err_type(linked_list_add(p_msg_q->msg_list, msg_obj, dealloc));
-
- /* Show data is in the message queue. */
- pthread_cond_signal(&p_msg_q->list_cond);
-
- pthread_mutex_unlock(&p_msg_q->list_mutex);
-
- LOC_LOGV("%s: Finished Sending message with handle = 0x%08X\n", __FUNCTION__, msg_obj);
-
- return rv;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_rcv
-
- ===========================================================================*/
-msq_q_err_type msg_q_rcv(void* msg_q_data, void** msg_obj)
-{
- msq_q_err_type rv;
- if( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_HANDLE;
- }
-
- if( msg_obj == NULL )
- {
- LOC_LOGE("%s: Invalid msg_obj parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_PARAMETER;
- }
-
- msg_q* p_msg_q = (msg_q*)msg_q_data;
-
- LOC_LOGV("%s: Waiting on message\n", __FUNCTION__);
-
- pthread_mutex_lock(&p_msg_q->list_mutex);
-
- if( p_msg_q->unblocked )
- {
- LOC_LOGE("%s: Message queue has been unblocked.\n", __FUNCTION__);
- pthread_mutex_unlock(&p_msg_q->list_mutex);
- return eMSG_Q_UNAVAILABLE_RESOURCE;
- }
-
- /* Wait for data in the message queue */
- while( linked_list_empty(p_msg_q->msg_list) && !p_msg_q->unblocked )
- {
- pthread_cond_wait(&p_msg_q->list_cond, &p_msg_q->list_mutex);
- }
-
- rv = convert_linked_list_err_type(linked_list_remove(p_msg_q->msg_list, msg_obj));
-
- pthread_mutex_unlock(&p_msg_q->list_mutex);
-
- LOC_LOGV("%s: Received message 0x%08X rv = %d\n", __FUNCTION__, *msg_obj, rv);
-
- return rv;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_flush
-
- ===========================================================================*/
-msq_q_err_type msg_q_flush(void* msg_q_data)
-{
- msq_q_err_type rv;
- if ( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_HANDLE;
- }
-
- msg_q* p_msg_q = (msg_q*)msg_q_data;
-
- LOC_LOGD("%s: Flushing Message Queue\n", __FUNCTION__);
-
- pthread_mutex_lock(&p_msg_q->list_mutex);
-
- /* Remove all elements from the list */
- rv = convert_linked_list_err_type(linked_list_flush(p_msg_q->msg_list));
-
- pthread_mutex_unlock(&p_msg_q->list_mutex);
-
- LOC_LOGD("%s: Message Queue flushed\n", __FUNCTION__);
-
- return rv;
-}
-
-/*===========================================================================
-
- FUNCTION: msg_q_unblock
-
- ===========================================================================*/
-msq_q_err_type msg_q_unblock(void* msg_q_data)
-{
- if ( msg_q_data == NULL )
- {
- LOC_LOGE("%s: Invalid msg_q_data parameter!\n", __FUNCTION__);
- return eMSG_Q_INVALID_HANDLE;
- }
-
- msg_q* p_msg_q = (msg_q*)msg_q_data;
- pthread_mutex_lock(&p_msg_q->list_mutex);
-
- if( p_msg_q->unblocked )
- {
- LOC_LOGE("%s: Message queue has been unblocked.\n", __FUNCTION__);
- pthread_mutex_unlock(&p_msg_q->list_mutex);
- return eMSG_Q_UNAVAILABLE_RESOURCE;
- }
-
- LOC_LOGD("%s: Unblocking Message Queue\n", __FUNCTION__);
- /* Unblocking message queue */
- p_msg_q->unblocked = 1;
-
- /* Allow all the waiters to wake up */
- pthread_cond_broadcast(&p_msg_q->list_cond);
-
- pthread_mutex_unlock(&p_msg_q->list_mutex);
-
- LOC_LOGD("%s: Message Queue unblocked\n", __FUNCTION__);
-
- return eMSG_Q_SUCCESS;
-}
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