Function LockDataDirectory

src/init.cpp:1144–1155

}

static bool LockDataDirectory(bool probeOnly)
{
    // Make sure only a single Bitcoin process is using the data directory.
    fs::path datadir = gArgs.GetDataDirNet();
    if (!DirIsWritable(datadir)) {
        return InitError(strprintf(_("Cannot write to data directory '%s'; check permissions."), fs::PathToString(datadir)));
    }
    if (!LockDirectory(datadir, ".lock", probeOnly)) {
        return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), fs::PathToString(datadir), PACKAGE_NAME));
    }
    return true;
}

bool AppInitSanityChecks()
{