* refactoring: split src/ into mu/ and lib/

lib/mu-store.cc

@@ -0,0 +1,119 @@
+/* -*-mode: c++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8-*- */
+/*
+** Copyright (C) 2008-2011 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
+**
+** This program is free software; you can redistribute it and/or modify it
+** under the terms of the GNU General Public License as published by the
+** Free Software Foundation; either version 3, or (at your option) any
+** later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software Foundation,
+** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+**
+*/
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif /*HAVE_CONFIG_H*/
+
+#include <cstdio>
+#include <xapian.h>
+#include <cstring>
+#include <stdexcept>
+#include <unistd.h>
+
+#include <errno.h>
+
+#include "mu-store.h"
+#include "mu-store-priv.hh" /* _MuStore */
+
+
+#include "mu-msg.h"
+#include "mu-msg-part.h"
+#include "mu-store.h"
+#include "mu-util.h"
+#include "mu-str.h"
+#include "mu-date.h"
+#include "mu-flags.h"
+#include "mu-contacts.h"
+
+
+
+MuStore*
+mu_store_ref (MuStore *store)
+{
+	g_return_val_if_fail (store, NULL);
+	store->ref();
+	return store;
+}
+
+MuStore*
+mu_store_unref (MuStore *store)
+{
+	g_return_val_if_fail (store, NULL);
+
+
+	if (store->unref() == 0) {
+		try { delete store; } MU_XAPIAN_CATCH_BLOCK;
+	}
+
+	return NULL;
+}
+
+
+
+
+static char*
+xapian_get_metadata (const gchar *xpath, const gchar *key)
+{
+	g_return_val_if_fail (xpath, NULL);
+	g_return_val_if_fail (key, NULL);
+
+	if (!access(xpath, F_OK) == 0) {
+		g_warning ("cannot access %s: %s", xpath, strerror(errno));
+		return NULL;
+	}
+
+	try {
+		Xapian::Database db (xpath);
+		const std::string val(db.get_metadata (key));
+		return val.empty() ? NULL : g_strdup (val.c_str());
+
+	} MU_XAPIAN_CATCH_BLOCK;
+
+	return NULL;
+}
+
+char*
+mu_store_database_version (const gchar *xpath)
+{
+	g_return_val_if_fail (xpath, NULL);
+
+	return xapian_get_metadata (xpath, MU_STORE_VERSION_KEY);
+}
+
+
+
+
+gboolean
+mu_store_database_is_locked (const gchar *xpath)
+{
+	g_return_val_if_fail (xpath, FALSE);
+
+	try {
+		Xapian::WritableDatabase db (xpath, Xapian::DB_OPEN);
+	} catch (const Xapian::DatabaseLockError& xer) {
+		return TRUE;
+	} catch (const Xapian::Error &xer) {
+		g_warning ("%s: error: %s", __FUNCTION__,
+			   xer.get_msg().c_str());
+	}
+
+	return FALSE;
+}