From ba70704694e879246856d6bb98be3e3d01ab0156 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Mon, 24 Apr 2000 15:32:11 +0200
Subject: [PATCH] Improved replay progress display

---
 dvbapi.c | 10 +++++++---
 dvbapi.h |  4 ++--
 menu.c   |  6 +++---
 menu.h   |  4 +++-
 tools.c  | 21 +++++++++++++++++++--
 tools.h  |  4 +++-
 6 files changed, 37 insertions(+), 12 deletions(-)

diff --git a/dvbapi.c b/dvbapi.c
index a9544ffa..719437d4 100644
--- a/dvbapi.c
+++ b/dvbapi.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.c 1.7 2000/04/24 13:27:38 kls Exp $
+ * $Id: dvbapi.c 1.8 2000/04/24 15:30:35 kls Exp $
  */
 
 #include "dvbapi.h"
@@ -1150,7 +1150,7 @@ void cDvbApi::Text(int x, int y, const char *s, eDvbColor colorFg, eDvbColor col
 #endif
 }
 
-void cDvbApi::ShowProgress(bool Initial)
+bool cDvbApi::ShowProgress(bool Initial)
 {
   int Current, Total;
 
@@ -1191,7 +1191,9 @@ void cDvbApi::ShowProgress(bool Initial)
         }
 #endif
      Text(0, 2, cIndexFile::Str(Current));
+     return true;
      }
+  return false;
 }
 
 bool cDvbApi::SetChannel(int FrequencyMHz, char Polarization, int Diseqc, int Srate, int Vpid, int Apid, int Ca, int Pnr)
@@ -1538,6 +1540,7 @@ bool cDvbApi::GetIndex(int *Current, int *Total)
 {
   if (pidReplay) {
      int total;
+     purge(fromReplay);
      writechar(toReplay, dvbGetIndex);
      if (readint(fromReplay, *Current) && readint(fromReplay, total)) {
         if (Total)
@@ -1545,7 +1548,8 @@ bool cDvbApi::GetIndex(int *Current, int *Total)
         }
      else
         *Current = -1;
+     return *Current >= 0;
      }
-  return *Current >= 0;
+  return false;
 }
 
diff --git a/dvbapi.h b/dvbapi.h
index ddfdc154..91e554e9 100644
--- a/dvbapi.h
+++ b/dvbapi.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.h 1.7 2000/04/24 10:46:47 kls Exp $
+ * $Id: dvbapi.h 1.8 2000/04/24 15:31:07 kls Exp $
  */
 
 #ifndef __DVBAPI_H
@@ -75,7 +75,7 @@ private:
   int lastProgress;
   char *replayTitle;
 public:
-  void ShowProgress(bool Initial = false);
+  bool ShowProgress(bool Initial = false);
 
   // Channel facilities
 
diff --git a/menu.c b/menu.c
index 1a26730d..2a4cfa9f 100644
--- a/menu.c
+++ b/menu.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 1.7 2000/04/24 09:44:27 kls Exp $
+ * $Id: menu.c 1.8 2000/04/24 15:32:11 kls Exp $
  */
 
 #include "menu.h"
@@ -1018,7 +1018,7 @@ eOSState cMenuMain::ProcessKey(eKeys Key)
 cReplayDisplay::cReplayDisplay(void)
 {
   Interface.Open(MenuColumns, -3);
-  DvbApi.ShowProgress(true);
+  shown = DvbApi.ShowProgress(true);
 }
 
 cReplayDisplay::~cReplayDisplay()
@@ -1030,7 +1030,7 @@ eKeys cReplayDisplay::ProcessKey(eKeys Key)
 {
   if (!DvbApi.Replaying())
      return kOk; // will turn off replay display
-  DvbApi.ShowProgress();
+  shown = DvbApi.ShowProgress(!shown);
   switch (Key) {
     case kBegin:
     case kPause:
diff --git a/menu.h b/menu.h
index 85758c8c..f6657996 100644
--- a/menu.h
+++ b/menu.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.h 1.4 2000/04/24 09:44:29 kls Exp $
+ * $Id: menu.h 1.5 2000/04/24 15:31:53 kls Exp $
  */
 
 #ifndef _MENU_H
@@ -19,6 +19,8 @@ public:
   };
   
 class cReplayDisplay {
+private:
+  bool shown;
 public:
   cReplayDisplay(void);
   ~cReplayDisplay();
diff --git a/tools.c b/tools.c
index c43e610f..eb0a14a4 100644
--- a/tools.c
+++ b/tools.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 1.6 2000/04/24 13:54:23 kls Exp $
+ * $Id: tools.c 1.7 2000/04/24 15:01:35 kls Exp $
  */
 
 #define _GNU_SOURCE
@@ -22,6 +22,17 @@
 
 int SysLogLevel = 3;
 
+bool DataAvailable(int filedes)
+{
+  fd_set set;
+  FD_ZERO(&set);
+  FD_SET(filedes, &set);
+  struct timeval timeout;
+  timeout.tv_sec = 0;
+  timeout.tv_usec = 10000;
+  return select(FD_SETSIZE, &set, NULL, NULL, &timeout) > 0 && FD_ISSET(filedes, &set);
+}
+
 void writechar(int filedes, char c)
 {
   write(filedes, &c, sizeof(c));
@@ -41,7 +52,13 @@ char readchar(int filedes)
 
 bool readint(int filedes, int &n)
 {
-  return read(filedes, &n, sizeof(n)) == sizeof(n);
+  return DataAvailable(filedes) && read(filedes, &n, sizeof(n)) == sizeof(n);
+}
+
+void purge(int filedes)
+{
+  while (DataAvailable(filedes))
+        readchar(filedes);
 }
 
 char *readline(FILE *f)
diff --git a/tools.h b/tools.h
index 3263b914..57b2065d 100644
--- a/tools.h
+++ b/tools.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 1.6 2000/04/24 13:09:20 kls Exp $
+ * $Id: tools.h 1.7 2000/04/24 15:01:49 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -30,10 +30,12 @@ extern int SysLogLevel;
 
 #define DELETENULL(p) (delete (p), p = NULL)
 
+bool DataAvailable(int filedes);
 void writechar(int filedes, char c);
 void writeint(int filedes, int n);
 char readchar(int filedes);
 bool readint(int filedes, int &n);
+void purge(int filedes);
 char *readline(FILE *f);
 int time_ms(void);
 void delay_ms(int ms);