client: convert to C++

1 files changed, 148 insertions, 0 deletions

diff --git a/src/ClientProcess.cxx b/src/ClientProcess.cxx
new file mode 100644
index 00000000..284c4d86
--- /dev/null
+++ b/src/ClientProcess.cxx
@@ -0,0 +1,148 @@
+/*
+ * 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.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "protocol/Result.hxx"
+#include "AllCommands.hxx"
+
+#include <string.h>
+
+#define CLIENT_LIST_MODE_BEGIN "command_list_begin"
+#define CLIENT_LIST_OK_MODE_BEGIN "command_list_ok_begin"
+#define CLIENT_LIST_MODE_END "command_list_end"
+
+static enum command_return
+client_process_command_list(struct client *client, bool list_ok, GSList *list)
+{
+	enum command_return ret = COMMAND_RETURN_OK;
+	unsigned num = 0;
+
+	for (GSList *cur = list; cur != NULL; cur = g_slist_next(cur)) {
+		char *cmd = (char *)cur->data;
+
+		g_debug("command_process_list: process command \"%s\"",
+			cmd);
+		ret = command_process(client, num++, cmd);
+		g_debug("command_process_list: command returned %i", ret);
+		if (ret != COMMAND_RETURN_OK || client_is_expired(client))
+			break;
+		else if (list_ok)
+			client_puts(client, "list_OK\n");
+	}
+
+	return ret;
+}
+
+enum command_return
+client_process_line(struct client *client, char *line)
+{
+	enum command_return ret;
+
+	if (strcmp(line, "noidle") == 0) {
+		if (client->idle_waiting) {
+			/* send empty idle response and leave idle mode */
+			client->idle_waiting = false;
+			command_success(client);
+			client_write_output(client);
+		}
+
+		/* do nothing if the client wasn't idling: the client
+		   has already received the full idle response from
+		   client_idle_notify(), which he can now evaluate */
+
+		return COMMAND_RETURN_OK;
+	} else if (client->idle_waiting) {
+		/* during idle mode, clients must not send anything
+		   except "noidle" */
+		g_warning("[%u] command \"%s\" during idle",
+			  client->num, line);
+		return COMMAND_RETURN_CLOSE;
+	}
+
+	if (client->cmd_list_OK >= 0) {
+		if (strcmp(line, CLIENT_LIST_MODE_END) == 0) {
+			g_debug("[%u] process command list",
+				client->num);
+
+			/* for scalability reasons, we have prepended
+			   each new command; now we have to reverse it
+			   to restore the correct order */
+			client->cmd_list = g_slist_reverse(client->cmd_list);
+
+			ret = client_process_command_list(client,
+							  client->cmd_list_OK,
+							  client->cmd_list);
+			g_debug("[%u] process command "
+				"list returned %i", client->num, ret);
+
+			if (ret == COMMAND_RETURN_CLOSE ||
+			    client_is_expired(client))
+				return COMMAND_RETURN_CLOSE;
+
+			if (ret == COMMAND_RETURN_OK)
+				command_success(client);
+
+			client_write_output(client);
+			free_cmd_list(client->cmd_list);
+			client->cmd_list = NULL;
+			client->cmd_list_OK = -1;
+		} else {
+			size_t len = strlen(line) + 1;
+			client->cmd_list_size += len;
+			if (client->cmd_list_size >
+			    client_max_command_list_size) {
+				g_warning("[%u] command list size (%lu) "
+					  "is larger than the max (%lu)",
+					  client->num,
+					  (unsigned long)client->cmd_list_size,
+					  (unsigned long)client_max_command_list_size);
+				return COMMAND_RETURN_CLOSE;
+			}
+
+			new_cmd_list_ptr(client, line);
+			ret = COMMAND_RETURN_OK;
+		}
+	} else {
+		if (strcmp(line, CLIENT_LIST_MODE_BEGIN) == 0) {
+			client->cmd_list_OK = 0;
+			ret = COMMAND_RETURN_OK;
+		} else if (strcmp(line, CLIENT_LIST_OK_MODE_BEGIN) == 0) {
+			client->cmd_list_OK = 1;
+			ret = COMMAND_RETURN_OK;
+		} else {
+			g_debug("[%u] process command \"%s\"",
+				client->num, line);
+			ret = command_process(client, 0, line);
+			g_debug("[%u] command returned %i",
+				client->num, ret);
+
+			if (ret == COMMAND_RETURN_CLOSE ||
+			    client_is_expired(client))
+				return COMMAND_RETURN_CLOSE;
+
+			if (ret == COMMAND_RETURN_OK)
+				command_success(client);
+
+			client_write_output(client);
+		}
+	}
+
+	return ret;
+}