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/*
* Copyright (c) 2000-2015 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "vp-db-common.h"
#include "vp-db-util.h"
#define VIDEO_THUMB_DB_NAME "/opt/usr/apps/org.tizen.videos/data/.video-thumb.db"
static sqlite3 *g_sqlite3_handle = NULL;
static int g_nRefCount = 0;
/* callback functions */
static int __vp_db_util_busy_handler(void *pData, int count)
{
usleep(50000);
vp_dbgW("__vp_db_util_busy_handler called : %d", count);
return 100 - count;
}
/* internal functions */
static sqlite3 *_vp_db_util_connect_db()
{
sqlite3 *pSqlite = NULL;
int ret = SQLITE_OK;
/*Connect DB */
ret = sqlite3_open(VIDEO_THUMB_DB_NAME, &pSqlite);
if (SQLITE_OK != ret) {
vp_dbgE("sqlite3_open fail [0x%x] : %s", ret,
sqlite3_errmsg(pSqlite));
return NULL;
}
ret = sqlite3_busy_handler(pSqlite, __vp_db_util_busy_handler, NULL);
if (SQLITE_OK != ret) {
vp_dbgE("sqlite3_busy_handler fail [0x%x]", ret);
sqlite3_close(pSqlite);
return NULL;
}
return pSqlite;
}
static void _vp_db_util_disconnect_db(sqlite3 *db_handle)
{
if (db_handle == NULL) {
vp_dbgE("db_handle is NULL");
return;
}
int ret = SQLITE_OK;
ret = sqlite3_close(db_handle);
if (SQLITE_OK != ret) {
vp_dbgE("sqlite3_close fail [0x%x]", ret);
db_handle = NULL;
}
}
/* external functions */
bool vp_db_util_connect()
{
if (g_sqlite3_handle) {
vp_dbgW("database is already connect");
g_nRefCount++;
return TRUE;
}
g_sqlite3_handle = _vp_db_util_connect_db();
if (g_sqlite3_handle == NULL) {
vp_dbgE("database connect is fail");
return FALSE;
}
g_nRefCount++;
return TRUE;
}
void vp_db_util_disconnect()
{
g_nRefCount--;
if (g_nRefCount < 0) {
g_nRefCount = 0;
}
if (g_nRefCount == 0) {
if (g_sqlite3_handle == NULL) {
vp_dbgW("database is already disconnect");
return;
}
_vp_db_util_disconnect_db(g_sqlite3_handle);
g_sqlite3_handle = NULL;
}
return;
}
bool vp_db_util_query_prepare(char *szQuery, sqlite3_stmt **stmt)
{
if (g_sqlite3_handle == NULL) {
vp_dbgE("database is not connect");
return FALSE;
}
int err = -1;
sqlite3 *handle = g_sqlite3_handle;
vp_dbg("SQL = %s\n", szQuery);
err = sqlite3_prepare_v2(handle, szQuery, -1, stmt, NULL);
if (SQLITE_OK != err) {
vp_dbgE("Query fails [0x%x]: query_string[%s] ", err, szQuery);
return FALSE;
}
vp_dbg("query success\n");
return TRUE;
}
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