* add 'mu_runtime' for initialization, keeping global state during runtime. update many.

src/mu-runtime.c

@@ -0,0 +1,207 @@
+/*
+** Copyright (C) 2010 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.
+**
+*/
+
+#include "mu-runtime.h"
+
+#include <glib-object.h>
+#include <locale.h> /* for setlocale() */
+#include <stdio.h> /* for fileno() */
+
+#include "mu-config.h"
+#include "mu-log.h"
+#include "mu-util.h"
+
+#define MU_XAPIAN_DIRNAME     "xapian"
+#define MU_BOOKMARKS_FILENAME "bookmarks"
+
+struct _MuRuntimeData {
+	gchar *_muhome;
+	gchar *_xapian_dir;
+	gchar *_bookmarks_file;
+
+	MuConfigOptions *_config;
+};
+typedef struct _MuRuntimeData MuRuntimeData;
+
+/* static, global data for this singleton */
+static gboolean       _initialized = FALSE;
+static MuRuntimeData *_data = NULL;
+
+static void runtime_free (void);
+
+static gboolean
+init_system (void)
+{
+	/* without setlocale, non-ascii cmdline params (like search
+	 * terms) won't work */
+	setlocale (LC_ALL, "");
+
+	/* on FreeBSD, it seems g_slice_new and friends lead to
+	 * segfaults. So we shut if off */
+#ifdef 	__FreeBSD__
+	if (!g_setenv ("G_SLICE", "always-malloc", TRUE)) {
+		g_critical ("cannot set G_SLICE");
+		return FALSE;
+	}
+#endif /*__FreeBSD__*/
+
+	g_type_init ();
+
+	return TRUE;
+}
+
+
+
+gboolean
+mu_runtime_init (const char* muhome_arg)
+{
+	gchar *muhome;
+
+	g_return_val_if_fail (!_initialized, FALSE);
+
+	if (!init_system())
+		return FALSE;
+
+	if (muhome_arg)
+		muhome = g_strdup (muhome_arg);
+	else
+		muhome = mu_util_guess_mu_homedir ();
+
+	if (!mu_log_init (muhome, TRUE, FALSE, FALSE)) {
+		g_free (muhome);
+		return FALSE;
+	}
+	
+	_data = g_new0 (MuRuntimeData, 1);
+ 	_data->_muhome = muhome;
+	
+	return _initialized = TRUE;
+}
+
+
+static gboolean
+init_log (MuConfigOptions *opts)
+{
+	if (opts->log_stderr)
+		return mu_log_init_with_fd (fileno(stderr), FALSE,
+					  opts->quiet, opts->debug);
+	else 
+		return mu_log_init (opts->muhome, TRUE, opts->quiet,
+				    opts->debug);
+}
+
+gboolean
+mu_runtime_init_from_cmdline (int *pargc, char ***pargv)
+{
+	g_return_val_if_fail (!_initialized, FALSE);
+
+	if (!init_system())
+		return FALSE;
+
+	_data	       = g_new0 (MuRuntimeData, 1);	
+	_data->_config = g_new0 (MuConfigOptions, 1);
+	
+	if (!mu_config_init (_data->_config, pargc, pargv)) {
+		runtime_free ();
+		return FALSE;
+	}
+
+	if (!init_log (_data->_config)) {
+		runtime_free ();
+		return FALSE;
+	}
+	
+	_data->_muhome = g_strdup (_data->_config->muhome);
+	
+	return _initialized = TRUE;
+}
+
+
+static void
+runtime_free (void)
+{
+	g_free (_data->_xapian_dir);
+	g_free (_data->_muhome);
+
+	if (_data->_config) {
+		mu_config_uninit (_data->_config);
+		g_free (_data->_config);
+	}
+
+	mu_log_uninit();
+	
+	g_free (_data);	
+}
+
+void
+mu_runtime_uninit (void)
+{
+	g_return_if_fail (_initialized);
+
+	runtime_free ();
+	
+	_initialized = FALSE;
+}
+	
+
+const char*
+mu_runtime_mu_home_dir (void)
+{
+g_return_val_if_fail (_initialized, NULL);
+
+	return _data->_muhome;
+}
+
+
+
+const char*
+mu_runtime_xapian_dir (void)
+{
+	g_return_val_if_fail (_initialized, NULL);
+
+	if (!_data->_xapian_dir)
+		_data->_xapian_dir = g_strdup_printf ("%s%c%s", _data->_muhome,
+							      G_DIR_SEPARATOR,
+							      MU_XAPIAN_DIRNAME);
+	return _data->_xapian_dir;
+}
+
+const char*
+mu_runtime_bookmarks_file  (void)
+{
+	g_return_val_if_fail (_initialized, NULL);
+
+	if (!_data->_bookmarks_file)
+		_data->_bookmarks_file = 
+			g_strdup_printf ("%s%c%s",
+					 _data->_muhome,
+					 G_DIR_SEPARATOR,
+					 MU_BOOKMARKS_FILENAME);
+	
+	return _data->_bookmarks_file;
+}
+
+
+MuConfigOptions*
+mu_runtime_config_options (void)
+{
+	g_return_val_if_fail (_initialized, NULL);
+	
+	return _data->_config;
+}