db_plugin: convert to C++

1 files changed, 0 insertions, 357 deletions

diff --git a/src/db/simple_db_plugin.c b/src/db/simple_db_plugin.c
deleted file mode 100644
index 697e8da5f..000000000
--- a/src/db/simple_db_plugin.c
+++ /dev/null
@@ -1,357 +0,0 @@
-/*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "simple_db_plugin.h"
-#include "db_internal.h"
-#include "db_error.h"
-#include "db_selection.h"
-#include "db_visitor.h"
-#include "db_save.h"
-#include "db_lock.h"
-#include "conf.h"
-#include "directory.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-
-struct simple_db {
-	struct db base;
-
-	char *path;
-
-	struct directory *root;
-
-	time_t mtime;
-};
-
-G_GNUC_CONST
-static inline GQuark
-simple_db_quark(void)
-{
-	return g_quark_from_static_string("simple_db");
-}
-
-G_GNUC_PURE
-static const struct directory *
-simple_db_lookup_directory(const struct simple_db *db, const char *uri)
-{
-	assert(db != NULL);
-	assert(db->root != NULL);
-	assert(uri != NULL);
-
-	db_lock();
-	struct directory *directory =
-		directory_lookup_directory(db->root, uri);
-	db_unlock();
-	return directory;
-}
-
-static struct db *
-simple_db_init(const struct config_param *param, GError **error_r)
-{
-	struct simple_db *db = g_malloc(sizeof(*db));
-	db_base_init(&db->base, &simple_db_plugin);
-
-	GError *error = NULL;
-	db->path = config_dup_block_path(param, "path", &error);
-	if (db->path == NULL) {
-		g_free(db);
-		if (error != NULL)
-			g_propagate_error(error_r, error);
-		else
-			g_set_error(error_r, simple_db_quark(), 0,
-				    "No \"path\" parameter specified");
-		return NULL;
-	}
-
-	return &db->base;
-}
-
-static void
-simple_db_finish(struct db *_db)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-
-	g_free(db->path);
-	g_free(db);
-}
-
-static bool
-simple_db_check(struct simple_db *db, GError **error_r)
-{
-	assert(db != NULL);
-	assert(db->path != NULL);
-
-	/* Check if the file exists */
-	if (access(db->path, F_OK)) {
-		/* If the file doesn't exist, we can't check if we can write
-		 * it, so we are going to try to get the directory path, and
-		 * see if we can write a file in that */
-		char *dirPath = g_path_get_dirname(db->path);
-
-		/* Check that the parent part of the path is a directory */
-		struct stat st;
-		if (stat(dirPath, &st) < 0) {
-			g_free(dirPath);
-			g_set_error(error_r, simple_db_quark(), errno,
-				    "Couldn't stat parent directory of db file "
-				    "\"%s\": %s",
-				    db->path, g_strerror(errno));
-			return false;
-		}
-
-		if (!S_ISDIR(st.st_mode)) {
-			g_free(dirPath);
-			g_set_error(error_r, simple_db_quark(), 0,
-				    "Couldn't create db file \"%s\" because the "
-				    "parent path is not a directory",
-				    db->path);
-			return false;
-		}
-
-		/* Check if we can write to the directory */
-		if (access(dirPath, X_OK | W_OK)) {
-			g_set_error(error_r, simple_db_quark(), errno,
-				    "Can't create db file in \"%s\": %s",
-				    dirPath, g_strerror(errno));
-			g_free(dirPath);
-			return false;
-		}
-
-		g_free(dirPath);
-
-		return true;
-	}
-
-	/* Path exists, now check if it's a regular file */
-	struct stat st;
-	if (stat(db->path, &st) < 0) {
-		g_set_error(error_r, simple_db_quark(), errno,
-			    "Couldn't stat db file \"%s\": %s",
-			    db->path, g_strerror(errno));
-		return false;
-	}
-
-	if (!S_ISREG(st.st_mode)) {
-		g_set_error(error_r, simple_db_quark(), 0,
-			    "db file \"%s\" is not a regular file",
-			    db->path);
-		return false;
-	}
-
-	/* And check that we can write to it */
-	if (access(db->path, R_OK | W_OK)) {
-		g_set_error(error_r, simple_db_quark(), errno,
-			    "Can't open db file \"%s\" for reading/writing: %s",
-			    db->path, g_strerror(errno));
-		return false;
-	}
-
-	return true;
-}
-
-static bool
-simple_db_load(struct simple_db *db, GError **error_r)
-{
-	assert(db != NULL);
-	assert(db->path != NULL);
-	assert(db->root != NULL);
-
-	FILE *fp = fopen(db->path, "r");
-	if (fp == NULL) {
-		g_set_error(error_r, simple_db_quark(), errno,
-			    "Failed to open database file \"%s\": %s",
-			    db->path, g_strerror(errno));
-		return false;
-	}
-
-	if (!db_load_internal(fp, db->root, error_r)) {
-		fclose(fp);
-		return false;
-	}
-
-	fclose(fp);
-
-	struct stat st;
-	if (stat(db->path, &st) == 0)
-		db->mtime = st.st_mtime;
-
-	return true;
-}
-
-static bool
-simple_db_open(struct db *_db, G_GNUC_UNUSED GError **error_r)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-
-	db->root = directory_new_root();
-	db->mtime = 0;
-
-	GError *error = NULL;
-	if (!simple_db_load(db, &error)) {
-		directory_free(db->root);
-
-		g_warning("Failed to load database: %s", error->message);
-		g_error_free(error);
-
-		if (!simple_db_check(db, error_r))
-			return false;
-
-		db->root = directory_new_root();
-	}
-
-	return true;
-}
-
-static void
-simple_db_close(struct db *_db)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-
-	assert(db->root != NULL);
-
-	directory_free(db->root);
-}
-
-static struct song *
-simple_db_get_song(struct db *_db, const char *uri, GError **error_r)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-
-	assert(db->root != NULL);
-
-	db_lock();
-	struct song *song = directory_lookup_song(db->root, uri);
-	db_unlock();
-	if (song == NULL)
-		g_set_error(error_r, db_quark(), DB_NOT_FOUND,
-			    "No such song: %s", uri);
-
-	return song;
-}
-
-static bool
-simple_db_visit(struct db *_db, const struct db_selection *selection,
-		const struct db_visitor *visitor, void *ctx,
-		GError **error_r)
-{
-	const struct simple_db *db = (const struct simple_db *)_db;
-	const struct directory *directory =
-		simple_db_lookup_directory(db, selection->uri);
-	if (directory == NULL) {
-		struct song *song;
-		if (visitor->song != NULL &&
-		    (song = simple_db_get_song(_db, selection->uri, NULL)) != NULL)
-			return visitor->song(song, ctx, error_r);
-
-		g_set_error(error_r, db_quark(), DB_NOT_FOUND,
-			    "No such directory");
-		return false;
-	}
-
-	if (selection->recursive && visitor->directory != NULL &&
-	    !visitor->directory(directory, ctx, error_r))
-		return false;
-
-	db_lock();
-	bool ret = directory_walk(directory, selection->recursive,
-				  visitor, ctx, error_r);
-	db_unlock();
-	return ret;
-}
-
-const struct db_plugin simple_db_plugin = {
-	.name = "simple",
-	.init = simple_db_init,
-	.finish = simple_db_finish,
-	.open = simple_db_open,
-	.close = simple_db_close,
-	.get_song = simple_db_get_song,
-	.visit = simple_db_visit,
-};
-
-struct directory *
-simple_db_get_root(struct db *_db)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-
-	assert(db != NULL);
-	assert(db->root != NULL);
-
-	return db->root;
-}
-
-bool
-simple_db_save(struct db *_db, GError **error_r)
-{
-	struct simple_db *db = (struct simple_db *)_db;
-	struct directory *music_root = db->root;
-
-	db_lock();
-
-	g_debug("removing empty directories from DB");
-	directory_prune_empty(music_root);
-
-	g_debug("sorting DB");
-	directory_sort(music_root);
-
-	db_unlock();
-
-	g_debug("writing DB");
-
-	FILE *fp = fopen(db->path, "w");
-	if (!fp) {
-		g_set_error(error_r, simple_db_quark(), errno,
-			    "unable to write to db file \"%s\": %s",
-			    db->path, g_strerror(errno));
-		return false;
-	}
-
-	db_save_internal(fp, music_root);
-
-	if (ferror(fp)) {
-		g_set_error(error_r, simple_db_quark(), errno,
-			    "Failed to write to database file: %s",
-			    g_strerror(errno));
-		fclose(fp);
-		return false;
-	}
-
-	fclose(fp);
-
-	struct stat st;
-	if (stat(db->path, &st) == 0)
-		db->mtime = st.st_mtime;
-
-	return true;
-}
-
-time_t
-simple_db_get_mtime(const struct db *_db)
-{
-	const struct simple_db *db = (const struct simple_db *)_db;
-
-	assert(db != NULL);
-	assert(db->root != NULL);
-
-	return db->mtime;
-}