2 files changed, 108 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);
+}
+
diff --git a/src/crtc-server/server.h b/src/crtc-server/server.h
new file mode 100644
index 0000000..ffe4f64
--- /dev/null
+++ b/src/crtc-server/server.h
@@ -0,0 +1,49 @@
+/**
+ * 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/>.
+ */
+#ifndef CRTC_SERVER_SERVER_H
+#define CRTC_SERVER_SERVER_H
+
+
+#include <stddef.h>
+
+
+
+#ifndef GCC_ONLY
+# if defined(__GNUC__) && !defined(__clang__)
+#  define GCC_ONLY(...)  __VA_ARGS__
+# else
+#  define GCC_ONLY(...)  /* nothing */
+# endif
+#endif
+
+
+
+/**
+ * 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
+ */
+GCC_ONLY(__attribute__((nonnull)))
+int handle_enumerate_crtcs(size_t conn, const char* restrict message_id);
+
+
+#endif
+