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/*
* libslp-db-util
*
* Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact: Hakjoo Ko <hakjoo.ko@samsung.com>
*
* 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 <string.h>
#include <unistd.h>
#include <time.h>
#include "util-func.h"
#include "collation.h"
#include "db-util-debug.h"
static int __db_util_busyhandler(void *pData, int count)
{
if (5 - count > 0) {
DB_UTIL_TRACE_DEBUG("Busy Handler Called! : PID(%d) / CNT(%d)\n", getpid(), count+1);
struct timespec time = {
.tv_sec = 0,
.tv_nsec = (count+1) * 100 * 1000 * 1000
};
nanosleep(&time, NULL);
return 1;
} else {
DB_UTIL_TRACE_DEBUG("Busy Handler will be returned SQLITE_BUSY error : PID(%d) \n", getpid());
return 0;
}
}
void __db_util_collation_cb(void* pArg, sqlite3* pDB, int eTextRep, const char* szName)
{
if (eTextRep == SQLITE_UTF8 && !sqlite3_stricmp(szName, "localized"))
db_util_create_collation(pDB, DB_UTIL_COL_LS_AS_CI,
DB_UTIL_COL_UTF8, "localized");
else
DB_UTIL_TRACE_WARNING("No matching collator for %s", szName);
}
static int __db_util_open(sqlite3 *pDB)
{
int rc = 0;
if (pDB == NULL) {
DB_UTIL_TRACE_WARNING("Invalid input param error");
return DB_UTIL_ERROR;
}
/* Register Busy handler */
rc = sqlite3_busy_handler(pDB, __db_util_busyhandler, NULL);
if (SQLITE_OK != rc) {
DB_UTIL_TRACE_WARNING("Fail to register busy handler\n");
sqlite3_close(pDB);
return rc;
}
#ifdef SET_PERSIST_JOURNAL_MODE
/* Code to change default journal mode of sqlite3 is enabled so this option is disabled */
/* Enable persist journal mode */
rc = sqlite3_exec(pDB, "PRAGMA journal_mode = PERSIST",
NULL, NULL, &pszErrorMsg);
if (SQLITE_OK != rc) {
DB_UTIL_TRACE_WARNING("Fail to change journal mode: %d, %d, %s, %s\n",
sqlite3_errcode(pDB),
sqlite3_extended_errcode(pDB),
pszErrorMsg,
sqlite3_errmsg(pDB));
sqlite3_free(pszErrorMsg);
sqlite3_close(pDB);
return rc;
}
#endif
sqlite3_collation_needed(pDB, NULL, __db_util_collation_cb);
#if 0
if (DB_UTIL_OK != rc) {
DB_UTIL_TRACE_WARNING("Fail to create collation");
return rc;
}
#endif
return DB_UTIL_OK;
}
int db_util_open(const char *pszFilePath, sqlite3 **ppDB, int nOption)
{
if ((pszFilePath == NULL) || (ppDB == NULL)) {
DB_UTIL_TRACE_WARNING("Invalid input param error");
return DB_UTIL_ERROR;
}
if ((geteuid() != 0) && (access(pszFilePath, R_OK))) {
if (errno == EACCES) {
DB_UTIL_TRACE_ERROR("file access permission error");
return SQLITE_PERM;
}
}
/* Open DB */
int rc = sqlite3_open(pszFilePath, ppDB);
if (SQLITE_OK != rc) {
return rc;
}
rc = __db_util_open(*ppDB);
return rc;
}
int db_util_open_with_options(const char *pszFilePath, sqlite3 **ppDB,
int flags, const char *zVfs)
{
if ((pszFilePath == NULL) || (ppDB == NULL)) {
DB_UTIL_TRACE_WARNING("sqlite3 handle null error");
return DB_UTIL_ERROR;
}
/* Open DB */
int rc = sqlite3_open_v2(pszFilePath, ppDB, flags, zVfs);
if (SQLITE_OK != rc) {
return rc;
}
rc = __db_util_open(*ppDB);
return rc;
}
int db_util_close(sqlite3 *pDB)
{
char *pszErrorMsg = NULL;
/* Close DB */
int rc = sqlite3_close(pDB);
if (SQLITE_OK != rc) {
DB_UTIL_TRACE_WARNING("Fail to change journal mode: %s\n", pszErrorMsg);
sqlite3_free(pszErrorMsg);
return rc;
}
return DB_UTIL_OK;
}
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