Add new option to wait for the next volume to appear

If the next volume got found, the file size gets checked in the given interval until it doesn't change anymore.
The default interval is 5 seconds.

command line option:
-vap<interval> Wait for each volume to appear, check interval in seconds

cmddata.cpp

@@ -842,6 +842,16 @@ void CommandData::ProcessSwitch(const wchar *Switch)
         case 'P':
           VolumePause=true;
           break;
+        case 'A':
+          if (toupperw(Switch[2])=='P')
+          {
+            VolumeAutoPause=true;
+            if (IsDigit(Switch[3]))
+              VolumeAutoPauseInterval=atoiw(Switch+3);
+            else
+              VolumeAutoPauseInterval=5;
+          }
+          break;
         case 'E':
           if (toupperw(Switch[2])=='R')
             VersionControl=atoiw(Switch+3)+1;
@@ -954,7 +964,7 @@ void CommandData::OutHelp(RAR_EXIT ExitCode)
     MCHelpSwO,MCHelpSwOC,MCHelpSwOR,MCHelpSwOW,MCHelpSwP,
     MCHelpSwPm,MCHelpSwR,MCHelpSwRI,MCHelpSwSL,MCHelpSwSM,MCHelpSwTA,
     MCHelpSwTB,MCHelpSwTN,MCHelpSwTO,MCHelpSwTS,MCHelpSwU,MCHelpSwVUnr,
-    MCHelpSwVER,MCHelpSwVP,MCHelpSwX,MCHelpSwXa,MCHelpSwXal,MCHelpSwY
+    MCHelpSwVER,MCHelpSwVP,MCHelpSwVAP,MCHelpSwX,MCHelpSwXa,MCHelpSwXal,MCHelpSwY
 #else
 #endif
   };

loclang.hpp

@@ -136,6 +136,7 @@
 #define   MCHelpSwVER        "\n  ver[n]        File version control"
 #define   MCHelpSwVN         "\n  vn            Use the old style volume naming scheme"
 #define   MCHelpSwVP         "\n  vp            Pause before each volume"
+#define   MCHelpSwVAP        "\n  vap<interval> Wait for each volume to appear, check interval in seconds"
 #define   MCHelpSwW          "\n  w<path>       Assign work directory"
 #define   MCHelpSwX          "\n  x<file>       Exclude specified file"
 #define   MCHelpSwXa         "\n  x@            Read file names to exclude from stdin"
@@ -161,6 +162,7 @@
 #define   MAskNextDisk       "\nDisk full. Insert next"
 #define   MCreatVol          "\n\nCreating %sarchive %s\n"
 #define   MAskNextVol        "\nInsert disk with %s"
+#define   MWaitNextVol       "\nWaiting for %s to appear"
 #define   MTestVol           "\n\nTesting archive %s\n"
 #define   MExtrVol           "\n\nExtracting from %s\n"
 #define   MConverting        "\nConverting %s"

options.hpp

@@ -152,6 +152,8 @@ class RAROptions
     bool Lock;
     bool Test;
     bool VolumePause;
+    bool VolumeAutoPause;
+    uint VolumeAutoPauseInterval;
     FilterMode FilterModes[MAX_FILTER_TYPES];
     wchar EmailTo[NM];
     uint VersionControl;

volume.cpp

@@ -52,6 +52,11 @@ bool MergeArchive(Archive &Arc,ComprDataIO *DataIO,bool ShowFileName,wchar Comma
     FailedOpen=true;
 #endif
 
+  if (Cmd->VolumeAutoPause)
+  {
+      WaitNextVol(NextName,Cmd->VolumeAutoPauseInterval);
+  }
+
   if (!FailedOpen)
     while (!Arc.Open(NextName,0))
     {
@@ -187,6 +192,25 @@ bool AskNextVol(wchar *ArcName)
 #endif
 
 
+void WaitNextVol(wchar *ArcName,uint Interval)
+{
+    eprintf(St(MWaitNextVol),ArcName);
+    while (!FileExist(ArcName))
+    {
+        sleep(Interval);
+    }
+    File *ArcFile=new File();
+    ArcFile->Open(ArcName,FMF_READ);
+    int64 ArcFileLastSize=0, ArcFileSize=1;
+    while (ArcFileSize!=ArcFileLastSize)
+    {
+        ArcFileLastSize=ArcFileSize;
+        sleep(Interval);
+        ArcFileSize=ArcFile->FileLength();
+    }
+}
+
+
 #ifdef RARDLL
 #if defined(RARDLL) && defined(_MSC_VER) && !defined(_WIN_64)
 // Disable the run time stack check for unrar.dll, so we can manipulate

volume.hpp

@@ -7,5 +7,6 @@ bool MergeArchive(Archive &Arc,ComprDataIO *DataIO,bool ShowFileName,
                   wchar Command);
 void SetVolWrite(Archive &Dest,int64 VolSize);
 bool AskNextVol(wchar *ArcName);
+void WaitNextVol(wchar *ArcName,uint Interval);
 
 #endif