diff options
| -rw-r--r-- | mixlib/Makefile.am | 4 | ||||
| -rw-r--r-- | mixlib/mix_config.c | 186 | ||||
| -rw-r--r-- | mixlib/mix_config.h | 62 |
3 files changed, 251 insertions, 1 deletions
diff --git a/mixlib/Makefile.am b/mixlib/Makefile.am index 5091e88..2c1f818 100644 --- a/mixlib/Makefile.am +++ b/mixlib/Makefile.am @@ -28,6 +28,8 @@ libmix_a_SOURCES = mix.h mix.c \ mix_eval.h mix_eval.c xmix_eval.h mix_eval_scanner.l \ mix_src_file.c mix_src_file.h \ mix_vm_clock.c mix_vm_clock.h \ - mix_vm_command.c mix_vm_command.h + mix_vm_command.c mix_vm_command.h \ + mix_config.c mix_config.h + diff --git a/mixlib/mix_config.c b/mixlib/mix_config.c new file mode 100644 index 0000000..721e88e --- /dev/null +++ b/mixlib/mix_config.c @@ -0,0 +1,186 @@ +/* -*-c-*- -------------- mix_config.c : + * Implementation of the functions declared in mix_config.h + * ------------------------------------------------------------------ + * Last change: Time-stamp: "01/02/12 00:35:28 jose" + * ------------------------------------------------------------------ + * Copyright (C) 2001 Free Software Foundation, Inc. + * + * 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 2 of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + + +#include <stdlib.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include "mix_config.h" + +static const gchar COMMENT_PREFIX_ = '#'; +static const gchar *DEF_DIR_ = ".mdk"; +static const gchar *AUTOSAVE_KEY_ = "Autosave"; +static const gchar *AUTOSAVE_YES_ = "True"; +static const gchar *AUTOSAVE_NO_ = "False"; + +/* the config type */ +struct mix_config_t +{ + gchar *filename; /* full path to configuration file */ + gboolean autosave; /* whether save on destroy */ + GHashTable *items; /* configuration items */ +}; + +/* create a new config handler, giving the dir and name of the config file */ +mix_config_t * +mix_config_new (const gchar *dirname, const gchar *filename) +{ + static const gchar *DEF_DIRNAME_ = NULL; + static const gchar *DEF_FILENAME_ = "config"; + + const gchar *autosave; + FILE *f; + int k; + mix_config_t *result = g_new (mix_config_t, 1); + + if (DEF_DIRNAME_ == NULL) + DEF_DIRNAME_ = g_strdup_printf ("%s/%s", g_get_home_dir (), DEF_DIR_); + + if (dirname == NULL) dirname = DEF_DIRNAME_; + if (filename == NULL) filename = DEF_FILENAME_; + + k = mkdir (dirname, S_IRWXU | S_IRWXG | S_IRWXO); + if (!k) g_message ("Configuration directory %s created\n", dirname); + + result->filename = g_strdup_printf ("%s/%s", dirname, filename); + result->items = g_hash_table_new (g_str_hash, g_str_equal); + + f = fopen (result->filename, "r"); + if (f != NULL) + { + enum {LEN = 256}; + gchar buffer[LEN]; + gchar *line = buffer; + while (!feof (f)) + { + line = fgets (line, LEN, f); + if (line) line = g_strstrip (line); + if (line && line[0] != COMMENT_PREFIX_) + { + gchar **vals = g_strsplit (line, "=", 2); + g_hash_table_insert (result->items, + (gpointer)g_strdup (g_strstrip (vals[0])), + (gpointer)g_strdup (g_strstrip (vals[1]))); + g_strfreev (vals); + } + } + fclose (f); + } + + autosave = mix_config_get (result, AUTOSAVE_KEY_); + result->autosave = autosave && !g_strcasecmp (autosave, AUTOSAVE_YES_); + + return result; +} + + +/* delete a config handler, saving the configuration if needed */ +void +mix_config_delete (mix_config_t *config) +{ + g_return_if_fail (config != NULL); + if (mix_config_is_autosave (config)) mix_config_save (config); + g_free (config->filename); + g_hash_table_destroy (config->items); + g_free (config); +} + +/* get a config item's value from its key */ +const gchar * +mix_config_get (const mix_config_t *config, const gchar *key) +{ + g_return_val_if_fail (config != NULL, NULL); + g_return_val_if_fail (key != NULL, NULL); + + return (const gchar*)g_hash_table_lookup (config->items, key); +} + + +/* update (or create if it does not exist) a new config item */ +void +mix_config_update (mix_config_t *config, const gchar *key, const gchar *value) +{ + gpointer tmp = NULL; + + g_return_if_fail (config != NULL); + g_return_if_fail (key != NULL); + g_return_if_fail (value != NULL); + + tmp = g_hash_table_lookup (config->items, key); + if (tmp) + { + g_free (tmp); + tmp = (gpointer)key; + } + else + { + tmp = (gpointer)g_strdup (key); + } + + g_hash_table_insert (config->items, tmp, g_strdup (value)); +} + +/* save the current configuration */ +static void +save_ (gpointer key, gpointer value, gpointer file) +{ + fprintf ((FILE *)file, "%s=%s\n", (char *)key, (char *)value); +} + +void +mix_config_save (const mix_config_t *config) +{ + FILE *f; + + g_return_if_fail (config != NULL); + + f = fopen (config->filename, "w"); + if (!f) + { + g_warning ("Unable to open config file %s (%s)", + config->filename, g_strerror (errno)); + return; + } + g_hash_table_foreach (config->items, save_, (gpointer)f); + fclose (f); +} + +/* set autosave on delete flag */ +void +mix_config_set_autosave (mix_config_t *config, gboolean autosave) +{ + mix_config_update (config, AUTOSAVE_KEY_, + autosave? AUTOSAVE_YES_ : AUTOSAVE_NO_); + config->autosave = autosave; +} + + +gboolean +mix_config_is_autosave (const mix_config_t *config) +{ + g_return_val_if_fail (config != NULL, FALSE); + return config->autosave; +} + diff --git a/mixlib/mix_config.h b/mixlib/mix_config.h new file mode 100644 index 0000000..b763160 --- /dev/null +++ b/mixlib/mix_config.h @@ -0,0 +1,62 @@ +/* -*-c-*- ---------------- mix_config.h : + * Basic config storage utility. + * ------------------------------------------------------------------ + * Last change: Time-stamp: <2001-07-02 01:21:11 jao> + * ------------------------------------------------------------------ + * Copyright (C) 2001 Free Software Foundation, Inc. + * + * 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 2 of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + + +#ifndef MIX_CONFIG_H +#define MIX_CONFIG_H + +#include "mix.h" + +/* the config type */ +typedef struct mix_config_t mix_config_t; + +/* create a new config handler, giving the dir and name of the config file */ +extern mix_config_t * +mix_config_new (const gchar *dirname, const gchar *filename); + +/* delete a config handler, saving the configuration if needed */ +extern void +mix_config_delete (mix_config_t *config); + +/* get a config item's value from its key */ +extern const gchar * +mix_config_get (const mix_config_t *config, const gchar *key); + +/* update (or create if it does not exist) a new config item */ +extern void +mix_config_update (mix_config_t *config, const gchar *key, const gchar *value); + +/* save the current configuration */ +extern void +mix_config_save (const mix_config_t *config); + +/* set autosave on delete flag */ +extern void +mix_config_set_autosave (mix_config_t *config, gboolean autosave); + +extern gboolean +mix_config_is_autosave (const mix_config_t *config); + + +#endif /* MIX_CONFIG_H */ + |