Major Update:

- Minor fix: Set correct names in comments at top of file
- New FileCore Class:
  - Writing data to output file
- BufferCore:
  - Check for "EAGAIN" on write and retry write
- FunctionCore:
  - Add new Output method that references LocalIO directly
- SelectableCore:
  - New method SetAutomanage to specify auto re-open parameters
  - Re-open timer implemented to slow re-open events
  - Only call ProcessBuffer() if data received on socket
  - Force processing input data when no input marker set
  - Use new Output method to simplify code
  - Bug fix: Read correctly from buffer on multiple reads/writes on FD
  - Check for "EAGAIN" on write to FD and retry write

BufferCore.cpp

@@ -13,6 +13,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 //---------------------------------------------------------------------------
 
@@ -310,8 +311,9 @@ int CBuffer::ReadFromFD( int Handle, int MaxRead )
         // Read from file descriptor
         BufRemain = BufSize - BufEnd;
         BytesRead = read( Handle, &Buffer[BufEnd], ((BufRemain > DataRemain)? DataRemain : BufRemain) );
-        if (BytesRead <= 0)
+        if (BytesRead <= 0) {
             break;
+        }
 
         // Update Buffer Pointers
         DataRemain -= BytesRead;
@@ -328,7 +330,6 @@ int CBuffer::ReadFromFD( int Handle, int MaxRead )
             BufStart = BufEnd;
         }
     }
-
     return TotalRead;
 }
 //---------------------------------------------------------------------------
@@ -355,8 +356,9 @@ int CBuffer::WriteToFD( int Handle, int MaxLen )
         // Read from file descriptor
         BufRemain = BufSize - ReadPos;
         BytesWritten = write( Handle, &Buffer[ReadPos], ((BufRemain > DataRemain)? DataRemain : BufRemain) );
-        if (BytesWritten <= 0)
+        if ((BytesWritten <= 0) && (errno != EAGAIN)) {
             break;
+        }
 
         // Update Data Pointers
         TotalWritten += BytesWritten;

CMakeLists.txt

@@ -1,3 +1,3 @@
 PROJECT(lib_redAcore)
 
-ADD_LIBRARY(redAcore TimingCore.cpp LogCore.cpp SignalCore.cpp BufferCore.cpp FunctionCore.cpp SelectCore.cpp SelectableCore.cpp)
+ADD_LIBRARY(redAcore TimingCore.cpp LogCore.cpp SignalCore.cpp BufferCore.cpp FunctionCore.cpp FileCore.cpp SelectCore.cpp SelectableCore.cpp)

FileCore.cpp

@@ -0,0 +1,330 @@
+/*
+ * FileCore.cpp
+ *
+ *  Created on: 1 Jun 2016
+ *      Author: wentzelc
+ */
+
+// redA Libraries
+#include "FileCore.h"
+#include "FunctionCore.h"
+#include "TimingCore.h"
+#include "LogCore.h"
+
+// Standard C/C++ Libraries
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+//---------------------------------------------------------------------------
+
+// Constants
+const float PI = 3.1415927;
+
+//---------------------------------------------------------------------------
+
+CFileCore::CFileCore( const char * Name, EDebugLevel pDebugLevel, int pOuputDisplay ) :
+           CFunctionCore( Name, pDebugLevel, pOuputDisplay )
+{
+    FirstFile = NULL;
+
+    // temp
+    count = 0;
+    x = 0;
+    // temp
+}
+//---------------------------------------------------------------------------
+
+CFileCore::~CFileCore()
+{
+    TFileHandle   * NextFile  = NULL;
+
+    // Destroy file specs
+    while (FirstFile)
+    {
+        // Close file if open
+        CloseFile( FirstFile );
+
+        // Destroy file parameters
+        if (FirstFile->Name)
+            free( FirstFile->Name );
+        if (FirstFile->Path)
+            free( FirstFile->Path );
+
+        // Destroy File
+        NextFile = FirstFile->Next;
+        delete FirstFile;
+        FirstFile = NextFile;
+    }
+}
+//---------------------------------------------------------------------------
+
+TFileHandle *  CFileCore::AddFile( const char * Name, const char * Path, bool Append, bool CreateLocalIO )
+{
+    TFileHandle   ** FileHandle     = NULL;
+
+    // Validate
+    if (!Name || !*Name || !Path || !*Path) {
+        return NULL;
+    }
+
+    // Find File or End of list
+    FileHandle = &FirstFile;
+    while (*FileHandle && strcmp( Name, (*FileHandle)->Name )) {
+        FileHandle = &((*FileHandle)->Next);
+    }
+
+    // Check if found
+    if (!*FileHandle)
+    {
+        // Create new
+        *FileHandle = (TFileHandle*)calloc( 1, sizeof(TFileHandle) );
+
+        // Set name & Path
+        (*FileHandle)->Name = (char*)malloc( strlen(Name)+1 );
+        strcpy( (*FileHandle)->Name, Name );
+        (*FileHandle)->Path = (char*)malloc( strlen(Path)+1 );
+        strcpy( (*FileHandle)->Path, Path );
+    }
+
+    // Create IO if necessary
+    if (CreateLocalIO) {
+        AddLocalIO( Name );
+    }
+
+    // Set Parameters
+    (*FileHandle)->Append     = Append;
+    (*FileHandle)->FD         = NO_FD;
+
+    // Return File
+    return (*FileHandle);
+}
+//---------------------------------------------------------------------------
+
+bool CFileCore::SetFilePersistence( TFileHandle * FileHandle, bool Persistent, int PersistTimeout )
+{
+    // Validate
+    if (!FileHandle) {
+        return false;
+    }
+
+    // Set parameters
+    FileHandle->Persistent = Persistent;
+    FileHandle->PersistTimeout = PersistTimeout;
+
+    // Open persistent file
+    if (Persistent && (!PersistTimeout)) {
+        OpenFile( FileHandle );
+        SetStartTime( &(FileHandle->PersistTime) );
+    }
+    // Close non-persistent file
+    else if (!Persistent && isOpen(FileHandle)) {
+        CloseFile( FileHandle );
+    }
+
+    return true;
+}
+//---------------------------------------------------------------------------
+
+bool CFileCore::OpenFile( TFileHandle * FileHandle )
+{
+    // Validate
+    if (!FileHandle) {
+        return false;
+    }
+
+    // Open file if not already open
+    if (!isOpen( FileHandle ))
+    {
+// temp
+//char FilePath[50];
+//sprintf( FilePath, "%s%03d", FileHandle->Path, x++ );
+//LogMessage( DebugLevel, dlNone, "f: %s", FilePath );
+// temp
+
+        // GEt file handle
+        (FileHandle)->FD = open( FileHandle->Path, O_WRONLY | O_CREAT | ((FileHandle->Append)? O_APPEND : O_TRUNC), 0664 );
+
+        // Report event
+        if (isOpen(FileHandle))
+        {
+            // Set timer
+            SetStartTime( &(FileHandle->PersistTime) );
+
+            // temp
+            count = 0;
+            // temp
+
+            // Report result
+            LogMessage( DebugLevel, dlHigh, "%s: File '%s' - Opened", Name, FileHandle->Name );
+        }
+    }
+
+    // Check if failed
+    if (!isOpen(FileHandle))
+    {
+        // Report result
+        LogMessage( DebugLevel, dlHigh, "%s: File '%s' - Could not open (%d) %s", Name, FileHandle->Name, errno, strerror(errno) );
+        return false;
+    }
+
+    return true;
+}
+//---------------------------------------------------------------------------
+
+bool CFileCore::CloseFile( TFileHandle * FileHandle )
+{
+    // Validate
+    if (!FileHandle) {
+        return false;
+    }
+
+    // Close file if not already open
+    if (isOpen(FileHandle))
+    {
+        // Close file
+        close( FileHandle->FD );
+        FileHandle->FD = NO_FD;
+
+        // Report result
+        if (!isOpen(FileHandle)) {
+            LogMessage( DebugLevel, dlHigh, "%s: File '%s' - Closed", Name, FileHandle->Name );
+        } else {
+            LogMessage( DebugLevel, dlHigh, "%s: File '%s' - Could not close", Name, FileHandle->Name );
+        }
+
+        // temp
+        LogMessage( DebugLevel, dlNone, "%s: File '%s' - Bytes written %d (%d)", Name, FileHandle->Name, count, (count-5038848) );
+        // temp
+
+    }
+    return true;
+}
+//---------------------------------------------------------------------------
+
+int CFileCore::ReadFromFD( int FD, char * Data, int MaxLen )
+{
+    int     BytesRead       = 0;
+    int     TotalRead       = 0;
+    int     DataRemain      = 0;
+
+    // Check if buffer created
+    if ((FD == -1) || !Data) {
+        return 0;
+    }
+
+    // Read Data into buffer
+    DataRemain = (MaxLen == -1)? strlen(Data) : MaxLen;
+    while (DataRemain)
+    {
+        // Read from file descriptor
+        BytesRead = read( FD, &Data[TotalRead], DataRemain );
+        if (BytesRead <= 0)
+            break;
+
+        // Update Data Pointers
+        TotalRead += BytesRead;
+        DataRemain -= BytesRead;
+    }
+
+    return TotalRead;
+}
+//---------------------------------------------------------------------------
+
+int CFileCore::WriteToFD( int FD, const char * Data, int Len )
+{
+    int     BytesWritten    = 0;
+    int     TotalWritten    = 0;
+    int     DataRemain      = 0;
+
+    // Check if buffer created
+    if ((FD == -1) || !Data) {
+        return 0;
+    }
+
+    // Read Data into buffer
+    DataRemain = (Len == -1)? strlen(Data) : Len;
+    while (DataRemain)
+    {
+        // Read from file descriptor
+        BytesWritten = write( FD, &Data[TotalWritten], DataRemain );
+        if ((BytesWritten <= 0) && (errno != EAGAIN))
+            break;
+
+        // Update Data Pointers
+        TotalWritten += BytesWritten;
+        DataRemain -= BytesWritten;
+    }
+
+    return TotalWritten;
+}
+//---------------------------------------------------------------------------
+
+// Manual Data Input/Output
+int CFileCore::Input( const char * IOName, const char * Data, int MaxLen )
+{
+    TFileHandle   * FileHandle      = NULL;
+    int         BytesWritten    = 0;
+
+    // Validate
+    if (!IOName || !Data) {
+        return 0;
+    }
+    else if (MaxLen == -1) {
+        MaxLen = strlen( Data );
+    };
+
+    // Get IO
+    if (!(FileHandle = GetFile( IOName )))
+    {
+        // Log event
+        LogMessage( DebugLevel, dlHigh, "%s: Local IO '%s' - Input rejected, Local IO not found", Name, IOName );
+        return 0;
+    }
+
+    // Log event
+    //ShowOutput( DebugLevel, dlHigh, OutputDisplay, Data, MaxLen, "%s: Local IO '%s' - IN:", Name, IOName );
+
+    // Open file
+    if (!OpenFile( FileHandle )) {
+        return 0;
+    }
+
+    // Handle Incoming data
+    BytesWritten = WriteToFD( FileHandle->FD, Data, MaxLen );
+    SetStartTime( &(FileHandle->PersistTime) );
+
+    // temp
+    count += BytesWritten;
+    // temp
+
+    // Return processed bytes
+    return BytesWritten;
+}
+//---------------------------------------------------------------------------
+
+bool CFileCore::Process()
+{
+    TFileHandle     * FileHandle;
+
+    // Close Persistent files not used
+    FileHandle = FirstFile;
+    while (FileHandle)
+    {
+        if (isOpen(FileHandle) &&
+            (!FileHandle->Persistent ||
+             (FileHandle->PersistTimeout && Timeout( FileHandle->PersistTime, FileHandle->PersistTimeout )))) {
+            CloseFile( FileHandle );
+        }
+
+        // Next
+        FileHandle = FileHandle->Next;
+    }
+
+    return true;
+}
+//---------------------------------------------------------------------------

FileCore.h

@@ -0,0 +1,83 @@
+/*
+ * FileCore.h
+ *
+ *  Created on: 1 Jun 2016
+ *      Author: wentzelc
+ */
+
+#ifndef JOANETELEMETRY_FILECORE_H_
+#define JOANETELEMETRY_FILECORE_H_
+
+// redA Libraries
+#include "FunctionCore.h"
+
+// Standard C/C++ Libraries
+/* none */
+
+//---------------------------------------------------------------------------
+
+const int NO_FD = -1;
+
+typedef struct SFileHandle TFileHandle;
+struct SFileHandle
+{
+    char    * Name;         // Quick reference
+    char    * Path;         // Actual location of file
+    int     FD;             // File Descriptor
+
+    bool    Append;         // Append data to end of file
+
+    bool    Persistent;     // Keep file open after write
+    timeval PersistTime;    // Time opened/last written to
+    bool    PersistTimeout; // Time to remain open, 0 = permanently open
+
+    TFileHandle   * Next;
+};
+//---------------------------------------------------------------------------
+
+class CFileCore : public CFunctionCore
+{
+private:
+    // File
+    TFileHandle   * FirstFile;
+
+    // temp
+    int count;
+    int x;
+    // temp
+
+    // Manage File
+    virtual bool OpenFile( TFileHandle * FileHandle );
+    virtual bool CloseFile( TFileHandle * FileHandle );
+
+    virtual int ReadFromFD( int FD, char * Data, int MaxLen );
+    virtual int WriteToFD( int FD, const char * Data, int Len );
+
+    inline TFileHandle * GetFile( const char * Name ) {
+        if (!Name || !*Name) return NULL;
+        TFileHandle *  FileHandle = FirstFile;
+        while (FileHandle && strcmp( Name, FileHandle->Name ))
+            FileHandle = FileHandle->Next;
+        return FileHandle;
+    };
+
+    inline bool isOpen( TFileHandle * FileHandle )      { return (FileHandle->FD != NO_FD); };
+
+public:
+    // Life cycle
+    CFileCore( const char * Name, EDebugLevel pDebugLevel, int pOuputDisplay );
+    ~CFileCore();
+
+    // Manage files
+    virtual TFileHandle *  AddFile( const char * Name, const char * Path, bool Append = true, bool CreateLocalIO = true );
+    virtual bool SetFilePersistence( TFileHandle * FileHandle, bool Persistent, int PersistTimeout );
+
+    // Data Input
+    virtual int Input( const char * IOName, const char * Data, int MaxLen = -1 );
+
+    // Processing data
+    virtual bool Process();
+};
+//---------------------------------------------------------------------------
+
+#endif /* JOANETELEMETRY_FILECORE_H_ */

FunctionCore.cpp

@@ -260,8 +260,31 @@ int CFunctionCore::Output( const char * IOName, const char * Data, int Len )
         return 0;
     }
 
+    // Return processed bytes
+    return Output( LocalIO, Data, Len );
+}
+//---------------------------------------------------------------------------
+
+int CFunctionCore::Output( const TLocalIO * LocalIO, const char * Data, int Len )
+{
+    TLinkedIO   * Output    = NULL;
+
+    // Validate
+    if (!LocalIO || !Data) {
+        return 0;
+    } else if (Len == -1) {
+        Len = strlen( Data );
+    }
+
     // Log event
-    ShowOutput( DebugLevel, dlHigh, OutputDisplay, Data, Len, "%s: Local IO '%s' - OUT:", Name, IOName );
+    ShowOutput( DebugLevel, dlHigh, OutputDisplay, Data, Len, "%s: Local IO '%s' - OUT:", Name, LocalIO->Name );
+
+    // Pass output to all linked inputs
+    Output = LocalIO->FirstOutput;
+    while (Output) {
+        Output->Function->Input( Output->IOName, Data, Len );
+        Output = Output->Next;
+    }
 
     // Return processed bytes
     return Len;

FunctionCore.h

@@ -68,6 +68,9 @@ protected:
         return LocalIO;
     }
 
+    // Low Level Local IO interfaces
+    virtual int  Output( const TLocalIO * LocalIO, const char * Data, int Len );
+
 public:
     // Life cycle
     CFunctionCore( const char * ObjectName, EDebugLevel pDebugLevel, int pOuputDisplay );

SelectCore.cpp

@@ -1,5 +1,5 @@
 /*
- * Select.cpp
+ * SelectCore.cpp
  *
  *  Created on: 13 May 2016
  *      Author: wentzelc

SelectableCore.cpp

@@ -1,5 +1,5 @@
 /*
- * CSelectableCore.cpp
+ * SelectableCore.cpp
  *
  *  Created on: 20 May 2016
  *      Author: wentzelc
@@ -60,7 +60,7 @@ CSelectableCore::~CSelectableCore()
 }
 //---------------------------------------------------------------------------
 
-THandle *  CSelectableCore::CreateHandle( const char * HandleName, bool CreateLocalIO, bool AutoManage )
+THandle *  CSelectableCore::CreateHandle( const char * HandleName, bool CreateLocalIO )
 {
     THandle     ** Handle   = NULL;
 
@@ -73,8 +73,7 @@ THandle *  CSelectableCore::CreateHandle( const char * HandleName, bool CreateLo
     if (!*Handle)
     {
         // Create File handle at end of list
-        *Handle = (THandle*)malloc( sizeof(THandle) );
+        *Handle = (THandle*)calloc( 1, sizeof(THandle) );
-        memset( *Handle, 0, sizeof(THandle) );
 
         // Set name
         if (HandleName) {
@@ -94,9 +93,6 @@ THandle *  CSelectableCore::CreateHandle( const char * HandleName, bool CreateLo
         (*Handle)->LocalIO = AddLocalIO( HandleName );
     }
 
-    // Set other params
-    (*Handle)->Auto = AutoManage;
-
     return *Handle;
 }
 //---------------------------------------------------------------------------
@@ -238,6 +234,20 @@ bool  CSelectableCore::ClearHandle( THandle * Handle )
 }
 //---------------------------------------------------------------------------
 
+bool CSelectableCore::SetAutoManage( THandle * Handle, bool AutoManage, int ReopenTime )
+{
+    // Validate
+    if (!Handle) {
+        return false;
+    }
+
+    // Set params
+    Handle->Auto            = AutoManage;
+    Handle->ReopenTimeout   = ReopenTime;
+    return true;
+}
+//---------------------------------------------------------------------------
+
 bool CSelectableCore::SetBuffers( THandle * Handle, int InBufSize, int OutBufSize, int InTimeout, const char * InMarker, int InMarkerLen )
 {
     // Validate
@@ -473,7 +483,7 @@ int CSelectableCore::OpenRemoteClientSocket( THandle * Handle )
 
         // Create Remote Client Handle
         sprintf( ClientName, "%s-%d", Handle->Name, ClientFD );
-        *RemoteClient = CreateHandle( ClientName, false, false );
+        *RemoteClient = CreateHandle( ClientName, false );
         SetSocketHandle( *RemoteClient, ctRemoteClient, ClientAddress, 0, Handle->KeepAlive );
 
         // Copy Parent Buffer setup
@@ -560,7 +570,7 @@ int CSelectableCore::OpenClientSocket( THandle * Handle )
              (setsockopt( Handle->FD, SOL_TCP,    TCP_KEEPINTVL, &TCPint_opt,    sizeof(TCPint_opt))    == -1)   ))
         {
             // Log Event
-            LogMessage( DebugLevel, dlMedium, "%s: Handle %s - Could not set KeepAlive options [%s:%d] (%s)", Name, Handle->Name, Handle->Address, Handle->PortNo, strerror(errno) );
+            LogMessage( DebugLevel, dlMedium, "%s: Handle '%s' - Could not set KeepAlive options [%s:%d] (%s)", Name, Handle->Name, Handle->Address, Handle->PortNo, strerror(errno) );
 
             // Set State
             close( Handle->FD );
@@ -578,7 +588,7 @@ int CSelectableCore::OpenClientSocket( THandle * Handle )
 
     if (!connect( Handle->FD, (struct sockaddr *)&address, addr_len ))
     {
-        LogMessage( DebugLevel, dlMedium, "%s: Handle %s - Client connected [%s:%d]", Name, Handle->Name, Handle->Address, Handle->PortNo );
+        LogMessage( DebugLevel, dlMedium, "%s: Handle '%s' - Client connected [%s:%d]", Name, Handle->Name, Handle->Address, Handle->PortNo );
 
         // Add to Select Lists
         if (Select) {
@@ -615,8 +625,13 @@ int CSelectableCore::OpenClientSocket( THandle * Handle )
 
         // Close socket
         close( Handle->FD );
-        Handle->FD = -1;
         Handle->State = csFailed;
+
+        // Start re-open timer
+        SetStartTime( &(Handle->ReopenStart) );
+
+        // Reset Handle
+        Handle->FD = -1;
         return -1;
     }
 }
@@ -686,6 +701,9 @@ bool CSelectableCore::Close( THandle * Handle, bool CloseChildren )
     Fail = (close( Handle->FD ))? true : false;
     Handle->State = ((Fail)? csFailed   : csClosed);
 
+    // Start re-open timer
+    SetStartTime( &(Handle->ReopenStart) );
+
     // Show action
     switch (Handle->Type)
     {
@@ -787,17 +805,16 @@ bool CSelectableCore::Read( THandle * Handle )
     }
 
     // Read File directly into buffer
-    if (!Handle->InBuffer || !(BytesRead = Handle->InBuffer->ReadFromFD( Handle->FD ))) {
+    if (Handle->InBuffer && (BytesRead = Handle->InBuffer->ReadFromFD( Handle->FD )))
-        return false;
+    {
+        // Process Buffer
+        ProcessBuffer( Handle, false );
     }
 
-    // Process Buffer
-    ProcessBuffer( Handle, false );
-
     // Reset timer
     SetStartTime( &(Handle->InStart) );
 
-    return true;
+    return (bool)BytesRead;
 }
 //---------------------------------------------------------------------------
 
@@ -874,8 +891,6 @@ bool CSelectableCore::ProcessBuffer( THandle * Handle, bool Force )
     int         Pos         = 0;
     int         Len         = 0;
     char        * Data      = NULL;
-    TLocalIO    * LocalIO   = NULL;
-    TLinkedIO   * Output    = NULL;
 
     // Check if buffered data
     if (!Handle || !Handle->InBuffer ||  !Handle->InBuffer->Len()) {
@@ -883,7 +898,7 @@ bool CSelectableCore::ProcessBuffer( THandle * Handle, bool Force )
     }
 
     // Check if forced processed
-    if (Force)
+    if (Force || !Handle->InMarkerLen)
     {
         // Show Packet
         Len = Handle->InBuffer->Peek( &Data );
@@ -891,18 +906,9 @@ bool CSelectableCore::ProcessBuffer( THandle * Handle, bool Force )
 
         // Write buffer to Outputs
         if (Handle->Type == ctRemoteClient) {
-            LocalIO = Handle->Parent->LocalIO;
+            Output( Handle->Parent->LocalIO, Data, Len );
         } else {
-            LocalIO = Handle->LocalIO;
+            Output( Handle->LocalIO, Data, Len );
-        }
-        if (LocalIO) {
-            ShowOutput( DebugLevel, dlHigh, OutputDisplay, Data, Len, "%s: LocalIO '%s' - OUT:", Name, LocalIO->Name );
-
-            Output = LocalIO->FirstOutput;
-            while (Output) {
-                Output->Function->Input( Output->IOName, Data, Len );
-                Output = Output->Next;
-            }
         }
 
         // Clear processed bytes from buffer
@@ -919,18 +925,9 @@ bool CSelectableCore::ProcessBuffer( THandle * Handle, bool Force )
 
             // Write buffer to Outputs
             if (Handle->Type == ctRemoteClient) {
-                LocalIO = Handle->Parent->LocalIO;
+                Output( Handle->Parent->LocalIO, Data, Len );
             } else {
-                LocalIO = Handle->LocalIO;
+                Output( Handle->LocalIO, Data, Len );
-            }
-            if (LocalIO) {
-                ShowOutput( DebugLevel, dlHigh, OutputDisplay, Data, Len, "%s: LocalIO '%s' - OUT:", Name, LocalIO->Name );
-
-                Output = LocalIO->FirstOutput;
-                while (Output) {
-                    Output->Function->Input( Output->IOName, Data, Len );
-                    Output = Output->Next;
-                }
             }
 
             // Clear processed bytes from buffer
@@ -957,15 +954,15 @@ int CSelectableCore::ReadFromFD( int FD, char * Data, int MaxLen )
     while (DataRemain)
     {
         // Read from file descriptor
-        BytesRead = read( FD, Data, DataRemain );
+        BytesRead = read( FD, &Data[TotalRead], DataRemain );
-        if (BytesRead <= 0)
+        if ((BytesRead <= 0)) {
             break;
+        }
 
         // Update Data Pointers
         TotalRead += BytesRead;
         DataRemain -= BytesRead;
     }
-
     return TotalRead;
 }
 //---------------------------------------------------------------------------
@@ -986,16 +983,15 @@ int CSelectableCore::WriteToFD( int FD, const char * Data, int Len )
     while (DataRemain)
     {
         // Read from file descriptor
-        BytesWritten = write( FD, Data, DataRemain );
+        BytesWritten = write( FD, &Data[TotalWritten], DataRemain );
-        //write( FD, "\n", 1 );
+        if ((BytesWritten <= 0) && (errno != EAGAIN)) {
-        if (BytesWritten <= 0)
             break;
+        }
 
         // Update Data Pointers
         TotalWritten += BytesWritten;
         DataRemain -= BytesWritten;
     }
-
     return TotalWritten;
 }
 //---------------------------------------------------------------------------
@@ -1106,8 +1102,16 @@ bool CSelectableCore::Process()
         // Auto manage handles
         if (Handle->Auto && ((Handle->State == csNone) || (Handle->State == csFailed) || (Handle->State == csClosed)))
         {
-            // Complete opening process
+            // Check duration since last PortIn
-            Open( Handle );
+            if (Timeout( Handle->ReopenStart, Handle->ReopenTimeout ))
+            {
+                // Complete opening process
+                if (Open( Handle ) == -1)
+                {
+                    // Reset Timer
+                    SetStartTime( &(Handle->ReopenStart) );
+                }
+            }
         }
 
         // Check Input buffers

SelectableCore.h

@@ -1,5 +1,5 @@
 /*
- * Select.h
+ * SelectableCore.h
  *
  *  Created on: 13 May 2016
  *      Author: wentzelc
@@ -91,6 +91,10 @@ struct SHandle {
     timeval     InStart;
     long        InTimeout; // millisecs
 
+    // Reopen Timer
+    timeval     ReopenStart;
+    long        ReopenTimeout;   // millisecs
+
     // List / Tree
     TLocalIO    * LocalIO;
     THandle     * Parent;
@@ -207,7 +211,8 @@ public:
     }
 
     // Configuration
-    THandle *   CreateHandle( const char * HandleName, bool CreateIO, bool AutoManage );
+    THandle *   CreateHandle( const char * HandleName, bool CreateIO );
+    bool    SetAutoManage( THandle * Handle, bool AutoManage, int ReopenTime = 0 );
     bool    SetBuffers( THandle * Handle, int InBufSize, int OutBufSize, int InTimeout, const char * InMarker, int InMarkerLen );
     bool    SerialConfig( THandle * Handle, int Baud, short DataBits, short StopBits, short Parity, short FlowCtrl, int Wait );
 

TimingCore.cpp

@@ -1,5 +1,5 @@
 /*
- * Timing.cpp
+ * TimingCore.cpp
  *
  *  Created on: 13 May 2016
  *      Author: wentzelc

TimingCore.h

@@ -1,5 +1,5 @@
 /*
- * Timing.h
+ * TimingCore.h
  *
  *  Created on: 13 May 2016
  *      Author: wentzelc