aboutsummaryrefslogtreecommitdiffstats
path: root/src/crtc-server/server.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/crtc-server/server.c')
-rw-r--r--src/crtc-server/server.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/crtc-server/server.c b/src/crtc-server/server.c
new file mode 100644
index 0000000..6c16cee
--- /dev/null
+++ b/src/crtc-server/server.c
@@ -0,0 +1,59 @@
+/**
+ * coopgammad -- Cooperative gamma server
+ * Copyright (C) 2016 Mattias Andrée (maandree@kth.se)
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#include "server.h"
+#include "../state.h"
+#include "../communication.h"
+
+#include <string.h>
+
+
+
+/**
+ * Handle a ‘Command: enumerate-crtcs’ message
+ *
+ * @param conn The index of the connection
+ * @param message_id The value of the ‘Message ID’ header
+ * @return Zero on success (even if ignored), -1 on error,
+ * 1 if connection closed
+ */
+int handle_enumerate_crtcs(size_t conn, const char* restrict message_id)
+{
+ size_t i, n = 0, len;
+ char* restrict buf;
+
+ for (i = 0; i < outputs_n; i++)
+ n += strlen(outputs[i].name) + 1;
+
+ MAKE_MESSAGE(&buf, &n, 0,
+ "Command: crtc-enumeration\n"
+ "In response to: %s\n"
+ "Length: %zu\n"
+ "\n",
+ message_id, n);
+
+ for (i = 0; i < outputs_n; i++)
+ {
+ len = strlen(outputs[i].name);
+ memcpy(buf + n, outputs[i].name, len);
+ buf[n + len] = '\n';
+ n += len + 1;
+ }
+
+ return send_message(conn, buf, n);
+}
+