Initial stab at a statedump feature via the HTTP server.

Access via http://host:9981/state

Makefile

@@ -111,6 +111,7 @@ SRCS += src/webui/webui.c \
 	src/webui/comet.c \
 	src/webui/extjs.c \
 	src/webui/simpleui.c \
+	src/webui/statedump.c \
 
 #
 # Extra modules

src/trap.c

@@ -18,6 +18,8 @@
 
 #include "trap.h"
 
+char tvh_binshasum[20];
+
 #if defined(__i386__) || defined(__x86_64__)
 
 // Only do this on x86 for now
@@ -176,6 +178,8 @@ trap_init(const char *ver)
 	      digest[18],
 	      digest[19]);
 
+  memcpy(tvh_binshasum, digest, 20);
+
   free(binsum);
 }
 

src/webui/statedump.c

@@ -0,0 +1,187 @@
+/*
+ *  Tvheadend, Statedump
+ *  Copyright (C) 2010 Andreas Öman
+ *
+ *  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 <pthread.h>
+#include <assert.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tvhead.h"
+#include "http.h"
+#include "webui.h"
+#include "access.h"
+#include "epg.h"
+#include "dvr/dvr.h"
+#include "xmltv.h"
+#include "dvb/dvb.h"
+#include "dvb/dvb_support.h"
+#include "transports.h"
+
+extern char tvh_binshasum[20];
+extern char *htsversion_full;
+
+int page_statedump(http_connection_t *hc, const char *remain, void *opaque);
+
+static void
+outputtitle(htsbuf_queue_t *hq, int indent, const char *fmt, ...)
+{
+  va_list ap;
+  va_start(ap, fmt);
+
+  htsbuf_qprintf(hq, "\n%*.s", indent, "");
+  
+  htsbuf_vqprintf(hq, fmt, ap);
+  va_end(ap);
+  htsbuf_qprintf(hq, "\n%*.s----------------------------------------------\n",
+		 indent, "");
+}
+
+
+static void
+dumpchannels(htsbuf_queue_t *hq)
+{
+  channel_t *ch;
+  outputtitle(hq, 0, "Channels");
+
+  RB_FOREACH(ch, &channel_name_tree, ch_name_link) {
+    
+    htsbuf_qprintf(hq, "%s (%d)\n", ch->ch_name, ch->ch_id);
+    htsbuf_qprintf(hq,
+		   "  refcount = %d\n"
+		   "  zombie = %d\n"
+		   "  number = %d\n"
+		   "  xmltv source = %s\n"
+		   "  icon = %s\n\n",
+		   ch->ch_refcount,
+		   ch->ch_zombie,
+		   ch->ch_number,
+		   ch->ch_xc ? ch->ch_xc->xc_displayname : "<none set>",
+		   ch->ch_icon ?: "<none set>");
+  }
+}
+
+static void
+dumptransports(htsbuf_queue_t *hq, struct th_transport_list *l, int indent)
+{
+  th_transport_t *t;
+  th_stream_t *st;
+
+  outputtitle(hq, indent, "Transports (or services)");
+  LIST_FOREACH(t, l, tht_group_link) {
+
+    htsbuf_qprintf(hq, "%*.s%s (%s)\n", indent + 2, "",
+		   transport_nicename(t), t->tht_identifier);
+	
+    
+    htsbuf_qprintf(hq, "%*.s%-16s %-5s %-5s %-5s %-5s %-10s\n", indent + 4, "",
+		   "Type",
+		   "Index",
+		   "Pid",
+		   "Lang",
+		   "CAID",
+		   "ProviderID");
+
+    htsbuf_qprintf(hq, "%*.s-------------------------------------------\n",
+		   indent + 4, "");
+
+    LIST_FOREACH(st, &t->tht_components, st_link) {
+      htsbuf_qprintf(hq, "%*.s%-16s %-5d %-5d %-5s %04x %08x\n", indent + 4, "",
+		     streaming_component_type2txt(st->st_type),
+		     st->st_index,
+		     st->st_pid,
+		     st->st_lang[0] ? st->st_lang : "",
+		     st->st_caid,
+		     st->st_providerid);
+    }
+
+    htsbuf_qprintf(hq, "\n");
+
+  }
+}
+
+
+
+static void
+dumpdvbadapters(htsbuf_queue_t *hq)
+{
+  th_dvb_adapter_t *tda;
+  th_dvb_mux_instance_t *tdmi;
+
+  outputtitle(hq, 0, "DVB Adapters");
+
+  TAILQ_FOREACH(tda, &dvb_adapters, tda_global_link) {
+    htsbuf_qprintf(hq, "%s (%s)\n", tda->tda_displayname, tda->tda_identifier);
+     
+    outputtitle(hq, 4, "Multiplexes");
+    LIST_FOREACH(tdmi, &tda->tda_muxes, tdmi_adapter_link) {
+      char tdminame[64];
+      dvb_mux_nicename(tdminame, sizeof(tdminame), tdmi);
+      htsbuf_qprintf(hq, "      %s (%s)\n",
+		     tdminame, tdmi->tdmi_identifier);
+      
+      htsbuf_qprintf(hq, "\n");
+      dumptransports(hq, &tdmi->tdmi_transports, 8);
+    }
+  }
+}
+
+
+int
+page_statedump(http_connection_t *hc, const char *remain, void *opaque)
+{
+  htsbuf_queue_t *hq = &hc->hc_reply;
+
+  scopedgloballock();
+ 
+
+  htsbuf_qprintf(hq, "Tvheadend %s  Binary SHA1: "
+		 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+		 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+		 htsversion_full,
+		 tvh_binshasum[0],
+		 tvh_binshasum[1],
+		 tvh_binshasum[2],
+		 tvh_binshasum[3],
+		 tvh_binshasum[4],
+		 tvh_binshasum[5],
+		 tvh_binshasum[6],
+		 tvh_binshasum[7],
+		 tvh_binshasum[8],
+		 tvh_binshasum[9],
+		 tvh_binshasum[10],
+		 tvh_binshasum[11],
+		 tvh_binshasum[12],
+		 tvh_binshasum[13],
+		 tvh_binshasum[14],
+		 tvh_binshasum[15],
+		 tvh_binshasum[16],
+		 tvh_binshasum[17],
+		 tvh_binshasum[18],
+		 tvh_binshasum[19]);
+
+  dumpchannels(hq);
+  
+  dumpdvbadapters(hq);
+ 
+
+  http_output_content(hc, "text/plain; charset=UTF-8");
+  return 0;
+}
+

src/webui/webui.c

@@ -297,7 +297,7 @@ favicon(http_connection_t *hc, const char *remain, void *opaque)
   return 0;
 }
 
-
+int page_statedump(http_connection_t *hc, const char *remain, void *opaque);
 
 /**
  * WEB user interface
@@ -311,6 +311,9 @@ webui_init(const char *contentpath)
   http_path_add("/favicon.ico", NULL, favicon, ACCESS_WEB_INTERFACE);
   http_path_add("/channels.pls", NULL, page_rtsp_playlist, ACCESS_WEB_INTERFACE);
 
+  http_path_add("/state", NULL, page_statedump, ACCESS_ADMIN);
+
+
   webui_static_content(contentpath, "/static",        "src/webui/static");
   webui_static_content(contentpath, "/docs",          "docs/html");
   webui_static_content(contentpath, "/docresources",  "docs/docresources");