config: move general/base configuration to the simple node system

Makefile

@@ -193,6 +193,7 @@ I18N-C += $(SRCS-SATIP-SERVER)
 
 SRCS-2 = \
 	src/api.c \
+	src/api/api_config.c \
 	src/api/api_status.c \
 	src/api/api_idnode.c \
 	src/api/api_input.c \

src/api.c

@@ -121,6 +121,7 @@ void api_init ( void )
 
   /* Subsystems */
   api_idnode_init();
+  api_config_init();
   api_input_init();
   api_mpegts_init();
   api_service_init();

src/api.h

@@ -60,6 +60,7 @@ int  api_exec ( access_t *perm, const char *subsystem,
  */
 void api_init               ( void );
 void api_done               ( void );
+void api_config_init        ( void );
 void api_idnode_init        ( void );
 void api_input_init         ( void );
 void api_service_init       ( void );

src/api/api_config.c

@@ -0,0 +1,36 @@
+/*
+ *  API - SAT>IP Server related calls
+ *
+ *  Copyright (C) 2015 Jaroslav Kysela
+ *
+ *  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; withm 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 "tvheadend.h"
+#include "channels.h"
+#include "access.h"
+#include "api.h"
+#include "config.h"
+
+void
+api_config_init ( void )
+{
+  static api_hook_t ah[] = {
+    { "config/load", ACCESS_ADMIN, api_idnode_load_simple, &config },
+    { "config/save", ACCESS_ADMIN, api_idnode_save_simple, &config },
+    { NULL },
+  };
+
+  api_register_all(ah);
+}

src/channels.c

@@ -557,11 +557,11 @@ channel_get_icon ( channel_t *ch )
 {
   static char buf[512], buf2[512];
   idnode_list_mapping_t *ilm;
-  const char *chicon = config_get_chicon_path(),
-             *picon  = config_get_picon_path(),
+  const char *chicon = config.chicon_path,
+             *picon  = config.picon_path,
              *icon   = ch->ch_icon,
              *chname;
-  uint32_t id, i, pick, prefer = config_get_prefer_picon() ? 1 : 0;
+  uint32_t id, i, pick, prefer = config.prefer_picon ? 1 : 0;
 
   if (icon && *icon == '\0')
     icon = NULL;