+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);
+ }
+
+ fclose(fp);
+}
+