Improve codes for rtc reset

Change-Id: I76b60ef568b64c0859924868a5d13d5c0d855dec
Signed-off-by: Inkyun Kil <inkyun.kil@samsung.com>

3 files changed, 81 insertions, 7 deletions

diff --git a/server/alarm-manager-db.c b/server/alarm-manager-db.c
index 5de09b3..aed8b99 100644
--- a/server/alarm-manager-db.c
+++ b/server/alarm-manager-db.c
@@ -79,6 +79,7 @@ extern __alarm_server_context_t alarm_context;
 
 sqlite3 *alarmmgr_db;
 static bool is_db_corrupted = false;
+static const int latest_settime_id = -2;
 
 static const migration_func m_func[] =
 {
@@ -809,3 +810,58 @@ recover:
 
 	return true;
 }
+
+bool _set_latest_settime(time_t settime)
+{
+	char *error_message = NULL;
+
+	char *query = sqlite3_mprintf("insert or replace into alarmmgr( alarm_id, start,\
+			end, uid, global, is_disabled, caller_pkgid, callee_pkgid, app_unique_name,\
+			app_service_name, app_service_name_mod, bundle, noti_len, noti, year,\
+			month, day, hour, min, sec, msec, day_of_week, repeat,\
+			alarm_type, reserved_info, dst_service_name, dst_service_name_mod)\
+			values (%d,%d,0,0,0,1,'n','n','n','n','n','n',0,\
+			'n',0,0,0,0,0,0,0,0,0,0,0,'n','n')", latest_settime_id, (gint64)settime);
+
+	if (SQLITE_OK != sqlite3_exec(alarmmgr_db, query, NULL, NULL, &error_message)) {
+		SECURE_LOGE("sqlite3_exec() is failed. query = %s, error message = %s", query, error_message);
+		sqlite3_free(error_message);
+		sqlite3_free(query);
+		return false;
+	}
+
+	LOGD("latest_settime : %ld", settime);
+	sqlite3_free(query);
+	return true;
+}
+
+bool _get_latest_settime(time_t *settime)
+{
+	sqlite3_stmt *stmt = NULL;
+	int ret;
+
+	char *query = sqlite3_mprintf("select start from alarmmgr where alarm_id=%d",
+			latest_settime_id);
+
+	ret = sqlite3_prepare_v2(alarmmgr_db, query, strlen(query), &stmt, NULL);
+	if (SQLITE_OK != ret) {
+		LOGE("sqlite3_prepare() is failed. [%d]", ret);
+		sqlite3_free(query);
+		return false;
+	}
+
+	ret = sqlite3_step(stmt);
+	if (SQLITE_ROW == ret) {
+		*settime = (time_t)sqlite3_column_int(stmt, 0);
+		LOGD("latest_settime : %ld", *settime);
+	} else {
+		LOGE("latest_settime is not set");
+		sqlite3_finalize(stmt);
+		sqlite3_free(query);
+		return false;
+	}
+
+	sqlite3_finalize(stmt);
+	sqlite3_free(query);
+	return true;
+}
\ No newline at end of file
diff --git a/server/alarm-manager-db.h b/server/alarm-manager-db.h
index b454ba2..02c18ba 100644
--- a/server/alarm-manager-db.h
+++ b/server/alarm-manager-db.h
@@ -33,6 +33,8 @@ bool _save_alarms(__alarm_info_t *__alarm_info);
 bool _update_alarms(__alarm_info_t *__alarm_info);
 gboolean _update_relative_alarms(gpointer user_data);
 void _update_db_for_disabled_alarm(alarm_id_t alarm_id, bool disabled_by_ups);
+bool _get_latest_settime(time_t *settime);
+bool _set_latest_settime(time_t settime);
 
 int migration_func_version_1(void);
 
diff --git a/server/alarm-manager.c b/server/alarm-manager.c
index 91c5a68..cb3a325 100644
--- a/server/alarm-manager.c
+++ b/server/alarm-manager.c
@@ -85,6 +85,7 @@ GHashTable *caller_appid_cache_table;
 bool is_time_changed = false; /* for calculating next duetime */
 static time_t periodic_alarm_standard_time = 0;
 static bool using_rtc = false;
+static bool is_rtc_reset = false;
 
 struct running_info_t {
 	pid_t pid;
@@ -315,6 +316,9 @@ static bool __set_time(time_t _time)
 			LOGD("ALARM_SET_RTC ioctl is succeed. [%d]", (int)_time);
 			strncpy(log_tag, "SET RTC START", sizeof(log_tag) - 1);
 			_save_module_log(log_tag, log_message);
+
+			if (!_set_latest_settime(_time))
+				LOGE("DB is failed.");
 			return true;
 		}
 	} else {
@@ -587,7 +591,6 @@ static void __alarm_update_due_time_of_all_items_in_list(time_t new_time, double
 	__alarm_info_t *entry = NULL;
 	struct tm *p_time = NULL;
 	struct tm due_time_result;
-	bool is_rtc_reset = false;
 	is_time_changed = true;
 
 	if (periodic_alarm_standard_time != 0)
@@ -600,8 +603,7 @@ static void __alarm_update_due_time_of_all_items_in_list(time_t new_time, double
 		if (base_info->alarm_type & ALARM_TYPE_RELATIVE) {
 			/* case of RTC reset */
 			if (entry->base_info.mode.repeat == ALARM_REPEAT_MODE_ONCE) {
-				if ((entry->due_time + diff_time - new_time) >
-					(entry->due_time - entry->base_info.reserved_info)) {
+				if (is_rtc_reset) {
 					LOGE("[ RTC reset]: new time %s %ld, diff %f, id %d duetime %s %ld %ld",
 						ctime(&new_time), new_time, diff_time, entry->alarm_id,
 						ctime(&entry->due_time), entry->due_time,
@@ -614,9 +616,7 @@ static void __alarm_update_due_time_of_all_items_in_list(time_t new_time, double
 
 			} else {
 				entry->due_time += diff_time;
-				is_rtc_reset = false;
-				if ((entry->due_time - new_time) > base_info->mode.u_interval.interval) {
-					is_rtc_reset = true;
+				if (is_rtc_reset) {
 					entry->due_time = new_time +
 						((entry->due_time - new_time) % base_info->mode.u_interval.interval);
 					LOGE("[ RTC reset]: new time %s %ld, diff %f, id %d duetime %s %ld %ld",
@@ -657,6 +657,12 @@ static void __alarm_update_due_time_of_all_items_in_list(time_t new_time, double
 		_alarm_set_next_duetime(entry);
 	}
 
+	if (is_rtc_reset) {
+		is_rtc_reset = false;
+		LOGW("RTC RESET -> RTC Normal");
+		_save_module_log("[RTC NORMAL]", "RTC RESET -> NORMAL");
+	}
+
 	time(&current_time);
 
 	for (iter = alarm_context.alarms; iter != NULL;) {
@@ -3120,7 +3126,7 @@ void _alarm_initialize()
 #if !(GLIB_CHECK_VERSION(2, 36, 0))
 	g_type_init();
 #endif
-
+	time_t latest_settime;
 	//For debug
 	int expire_mode = ALARM_EXPIRE_MODE_NORMAL;
 	vconf_get_int(VCONFKEY_ALARM_EXPIRE_MODE, &expire_mode);
@@ -3165,6 +3171,16 @@ void _alarm_initialize()
 			LOGE("power saving mode init failed");
 			exit(1);
 		}
+
+		if (_get_latest_settime(&latest_settime)) {
+			time_t current_time;
+			time(&current_time);
+			if (current_time < latest_settime) {
+				LOGE("[RTC_RESET] RTC goes back into the past.");
+				_save_module_log("FAIL: RTC_RESET", "RTC goes back into the past.");
+				is_rtc_reset = true;
+			}
+		}
 	}
 
 	__initialize_alarm_list();