aboutsummaryrefslogtreecommitdiffstats
path: root/src/CommandListBuilder.hxx
diff options
context:
space:
mode:
authorMax Kellermann <max@duempel.org>2013-01-04 00:50:13 +0100
committerMax Kellermann <max@duempel.org>2013-01-04 00:50:13 +0100
commitfb337418a5b8d85306c96ad51d445fd58fb38491 (patch)
treeb2ffd1c9f18bb643238741b72538d1ee5a5a4f8e /src/CommandListBuilder.hxx
parent9d312ab208f797a69c8366f4a961d6cb3228cecb (diff)
downloadmpd-fb337418a5b8d85306c96ad51d445fd58fb38491.tar.gz
mpd-fb337418a5b8d85306c96ad51d445fd58fb38491.tar.xz
mpd-fb337418a5b8d85306c96ad51d445fd58fb38491.zip
Client: move code to class CommandListBuilder
Diffstat (limited to 'src/CommandListBuilder.hxx')
-rw-r--r--src/CommandListBuilder.hxx100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/CommandListBuilder.hxx b/src/CommandListBuilder.hxx
new file mode 100644
index 000000000..dbcc15dc2
--- /dev/null
+++ b/src/CommandListBuilder.hxx
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2003-2013 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.
+ */
+
+#ifndef MPD_COMMAND_LIST_BUILDER_HXX
+#define MPD_COMMAND_LIST_BUILDER_HXX
+
+#include <glib.h>
+#include <assert.h>
+
+class CommandListBuilder {
+ /**
+ * for when in list mode
+ */
+ GSList *cmd_list;
+
+ /**
+ * print OK after each command execution
+ */
+ int cmd_list_OK;
+
+ /**
+ * mem cmd_list consumes
+ */
+ size_t cmd_list_size;
+
+public:
+ CommandListBuilder()
+ :cmd_list(nullptr), cmd_list_OK(-1), cmd_list_size(0) {}
+ ~CommandListBuilder() {
+ Reset();
+ }
+
+ /**
+ * Is a command list currently being built?
+ */
+ bool IsActive() const {
+ assert(cmd_list_OK >= -1 && cmd_list_OK <= 1);
+
+ return cmd_list_OK >= 0;
+ }
+
+ /**
+ * Is the object in "list_OK" mode?
+ */
+ bool IsOKMode() const {
+ assert(IsActive());
+
+ return (bool)cmd_list_OK;
+ }
+
+ /**
+ * Reset the object: delete the list and clear the mode.
+ */
+ void Reset();
+
+ /**
+ * Begin building a command list.
+ */
+ void Begin(bool ok) {
+ assert(cmd_list == nullptr);
+ assert(cmd_list_OK == -1);
+
+ cmd_list_OK = (int)ok;
+ }
+
+ /**
+ * @return false if the list is full
+ */
+ bool Add(const char *cmd);
+
+ /**
+ * Finishes the list and returns it.
+ */
+ GSList *Commit() {
+ assert(IsActive());
+
+ /* for scalability reasons, we have prepended each new
+ command; now we have to reverse it to restore the
+ correct order */
+ return cmd_list = g_slist_reverse(cmd_list);
+ }
+};
+
+#endif