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authorMax Kellermann <max@duempel.org>2013-01-03 10:33:04 +0100
committerMax Kellermann <max@duempel.org>2013-01-03 11:16:18 +0100
commit70b87f2eb620bdf1d7e07141914feb2316794fb3 (patch)
tree427aba509182a185263e00e222c4ee7b0fd0eb87 /src/ClientProcess.cxx
parent94b2ee627c06679eb2622f2ac2e2fb0240fbab3c (diff)
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client: convert to C++
Diffstat (limited to 'src/ClientProcess.cxx')
-rw-r--r--src/ClientProcess.cxx148
1 files changed, 148 insertions, 0 deletions
diff --git a/src/ClientProcess.cxx b/src/ClientProcess.cxx
new file mode 100644
index 000000000..284c4d862
--- /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;
+}