+#define RESOURCED_BUS_NAME "org.tizen.resourced"
+#define RESOURCED_PROC_PATH "/Org/Tizen/ResourceD/Process"
+#define RESOURCED_PROC_INTERFACE "org.tizen.resourced.process"
+#define RESOURCED_PROC_METHOD "ProcExclude"
+static void __send_wakeup_signal_to_resourced(pid_t pid)
+{
+ GError *error = NULL;
+ GDBusConnection *conn;
+ GDBusProxy *proxy;
+ GVariant *reply;
+
+ conn = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &error);
+ if (conn == NULL) {
+ _LOGE("Failed to connect to dbus: %s", error->message);
+ g_error_free(error);
+ return;
+ }
+
+ proxy = g_dbus_proxy_new_sync(conn,
+ G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
+ NULL, RESOURCED_BUS_NAME,
+ RESOURCED_PROC_PATH, RESOURCED_PROC_INTERFACE,
+ NULL, &error);
+ if (proxy == NULL) {
+ _LOGE("failed to get proxy object: %s", error->message);
+ g_error_free(error);
+ g_object_unref(conn);
+ return;
+ }
+
+ reply = g_dbus_proxy_call_sync(proxy, RESOURCED_PROC_METHOD,
+ g_variant_new("(si)", "wakeup", pid),
+ G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
+ if (reply == NULL)
+ _LOGE("failed to get reply from resourced");
+ if (error) {
+ _LOGE("failed to send request: %s", error->message);
+ g_error_free(error);
+ }
+
+ g_object_unref(proxy);
+ g_object_unref(conn);
+}
+
+static void __check_db_lock(const char *dbpath)
+{
+ FILE *fp;
+ FILE *fp_cmdline;
+ struct stat sb;
+ int pid;
+ unsigned int maj;
+ unsigned int min;
+ ino_t ino;
+ char cmdline[BUFSIZE];
+ char name[BUFSIZE];
+ size_t len;
+
+ if (stat(dbpath, &sb) == -1) {
+ _LOGE("get db file(%s) status failed: %d", dbpath, errno);
+ return;
+ }
+
+ fp = fopen("/proc/locks", "r");
+ if (fp == NULL) {
+ _LOGE("Failed to open lock info: %d", errno);
+ return;
+ }
+
+ while (fscanf(fp, "%*s %*s %*s %*s %d %x:%x:%lu %*s %*s",
+ &pid, &maj, &min, &ino) != EOF) {
+ if (maj != major(sb.st_dev) || min != minor(sb.st_dev) ||
+ ino != sb.st_ino || pid == getpid())
+ continue;
+
+ snprintf(cmdline, sizeof(cmdline), "/proc/%d/cmdline", pid);
+ fp_cmdline = fopen(cmdline, "r");
+ name[0] = '\0';
+ if (fp_cmdline != NULL) {
+ len = fread(name, sizeof(char), sizeof(name) - 1,
+ fp_cmdline);
+ if (len > 0) {
+ if (name[len - 1] == '\n')
+ name[len - 1] = '\0';
+ else
+ name[len] = '\0';
+ }
+ fclose(fp_cmdline);
+ }
+
+ _LOGE("%s (%d) has lock on pkgmgr db(%s)!", name, pid, dbpath);
+ __send_wakeup_signal_to_resourced(pid);
+ }
+
+ fclose(fp);
+}
+
+#define BUSY_WAITING_USEC (1000000 / 10 / 2) /* 0.05 sec */
+#define BUSY_WAITING_MAX 40 /* wait for max 2 sec */
+static int __db_busy_handler(void *data, int count)
+{
+ if (count < (BUSY_WAITING_MAX / 2)) {
+ usleep(BUSY_WAITING_USEC);
+ return 1;
+ } else if (count == (BUSY_WAITING_MAX / 2)) {
+ __check_db_lock((const char *)data);
+ usleep(BUSY_WAITING_USEC);
+ return 1;
+ } else if (count < BUSY_WAITING_MAX) {
+ usleep(BUSY_WAITING_USEC);
+ return 1;
+ } else {
+ /* sqlite3_prepare_v2 will return SQLITE_BUSY */
+ return 0;
+ }
+}
+