(blind) fix for gcc 3.4 warning for an always true comparison in an assert

[wxWidgets.git] / src / os2 / utilsexc.cpp

diff --git a/src/os2/utilsexc.cpp b/src/os2/utilsexc.cpp
index b842d08e90f5d6c57449dea938df4c6a321f68c0..f03454c49afd159f3cd979dbff6a2f48146e0b4c 100644 (file)
--- a/src/os2/utilsexc.cpp
+++ b/src/os2/utilsexc.cpp
@@ -1,28 +1,271 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        utilsexec.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        utilsexec.cpp

-// Purpose:     Execution-related utilities
-// Author:      AUTHOR
+// Purpose:     Various utilities
+// Author:      David Webster

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     10/17/99

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) David Webster
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"

 
 

+#ifndef WX_PRECOMP
+#include "wx/setup.h"

 #include "wx/utils.h"
 #include "wx/utils.h"

+#include "wx/app.h"
+#include "wx/intl.h"
+#endif
+
+#include "wx/log.h"
+
+#include "wx/process.h"
+
+#include "wx/os2/private.h"
+
+#define PURE_32
+#ifndef __EMX__
+#include <upm.h>
+#include <netcons.h>
+#include <netbios.h>
+#endif
+
+#include <ctype.h>
+#ifdef __EMX__
+#include <dirent.h>
+#endif
+
+#include <sys/stat.h>
+#include <io.h>

 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

+#include <errno.h>
+#include <stdarg.h>
+

 
 

-#define wxEXECUTE_WIN_MESSAGE 10000
+// this message is sent when the process we're waiting for terminates
+#define wxWM_PROC_TERMINATED (WM_USER + 10000)

 
 

-long wxExecute(const wxString& command, bool sync, wxProcess *handler)
+#ifndef NO_ERROR
+#  define NO_ERROR  0
+#endif
+
+// structure describing the process we're being waiting for
+struct wxExecuteData
+{
+public:
+    ~wxExecuteData()
+    {
+//         cout << "Closing thread: " << endl;
+        DosExit(EXIT_PROCESS, 0);
+    }
+
+    HWND                            hWnd;          // window to send wxWM_PROC_TERMINATED to [not used]
+    RESULTCODES                     vResultCodes;
+    wxProcess*                      pHandler;
+    ULONG                           ulExitCode;    // the exit code of the process
+    bool                            bState;        // set to FALSE when the process finishes
+};
+
+static ULONG wxExecuteThread(
+  wxExecuteData*                    pData
+)

 {
 {

-    // TODO
+    ULONG                           ulRc;
+    PID                             vPidChild;
+
+//     cout << "Executing thread: " << endl;
+
+    ulRc = ::DosWaitChild( DCWA_PROCESSTREE
+                          ,DCWW_NOWAIT
+                          ,&pData->vResultCodes
+                          ,&vPidChild
+                          ,pData->vResultCodes.codeTerminate // process PID to look at
+                         );
+    if (ulRc != NO_ERROR)
+    {
+        wxLogLastError("DosWaitChild");
+    }
+    delete pData;
+    return 0;
+}
+
+// window procedure of a hidden window which is created just to receive
+// the notification message when a process exits
+MRESULT APIENTRY wxExecuteWindowCbk(
+  HWND                              hWnd
+, ULONG                             ulMessage
+, MPARAM                            wParam
+, MPARAM                            lParam
+)
+{
+    if (ulMessage == wxWM_PROC_TERMINATED)
+    {
+        wxExecuteData*              pData = (wxExecuteData *)lParam;
+
+        if (pData->pHandler)
+        {
+            pData->pHandler->OnTerminate( (int)pData->vResultCodes.codeTerminate
+                                         ,(int)pData->vResultCodes.codeResult
+                                        );
+        }
+
+        if (pData->bState)
+        {
+            // we're executing synchronously, tell the waiting thread
+            // that the process finished
+            pData->bState = 0;
+        }
+        else
+        {
+            // asynchronous execution - we should do the clean up
+            delete pData;
+        }
+        ::WinDestroyWindow(hWnd);    // we don't need it any more
+    }

     return 0;
 }
     return 0;
 }

+
+long wxExecute(
+  const wxString&                   rCommand
+, int                               flags
+, wxProcess*                        pHandler
+)
+{
+    if (rCommand.IsEmpty())
+    {
+//         cout << "empty command in wxExecute." << endl;
+        return 0;
+    }
+
+    // create the process
+    UCHAR                           vLoadError[CCHMAXPATH] = {0};
+    RESULTCODES                     vResultCodes = {0};
+    ULONG                           ulExecFlag;
+    PSZ                             zArgs = NULL;
+    PSZ                             zEnvs = NULL;
+    APIRET                          rc;
+    TID                             vTID;
+
+    if (flags & wxEXEC_SYNC)
+        ulExecFlag = EXEC_SYNC;
+    else
+        ulExecFlag = EXEC_ASYNCRESULT;
+
+    rc = ::DosExecPgm( (PCHAR)vLoadError
+                      ,sizeof(vLoadError)
+                      ,ulExecFlag
+                      ,zArgs
+                      ,zEnvs
+                      ,&vResultCodes
+                      ,(PSZ)rCommand.c_str()
+                     );
+    if (rc != NO_ERROR)
+    {
+        wxLogSysError(_("Execution of command '%s' failed with error: %ul"), rCommand.c_str(), rc);
+        return 0;
+    }
+//     cout << "Executing: " << rCommand.c_str() << endl;
+    // Alloc data
+    wxExecuteData*                  pData = new wxExecuteData;
+
+    pData->vResultCodes = vResultCodes;
+    pData->hWnd         = NULLHANDLE;
+    pData->bState       = (flags & wxEXEC_SYNC) != 0;
+    if (flags & wxEXEC_SYNC)
+    {
+        wxASSERT_MSG(!pHandler, wxT("wxProcess param ignored for sync execution"));
+        pData->pHandler = NULL;
+    }
+    else
+    {
+        // may be NULL or not
+        pData->pHandler = pHandler;
+    }
+
+    rc = ::DosCreateThread( &vTID
+                           ,(PFNTHREAD)&wxExecuteThread
+                           ,(ULONG)pData
+                           ,CREATE_READY|STACK_SPARSE
+                           ,8192
+                          );
+    if (rc != NO_ERROR)
+    {
+        wxLogLastError("CreateThread in wxExecute");
+        delete pData;
+
+        // the process still started up successfully...
+        return vResultCodes.codeTerminate;
+    }
+    if (!(flags & wxEXEC_SYNC))
+    {
+        // return the pid
+        // warning: don't exit your app unless you actively
+        // kill and cleanup you child processes
+        // Maybe detach the process here???
+        // If cmd.exe need to pass DETACH to detach the process here
+        return vResultCodes.codeTerminate;
+    }
+
+    // waiting until command executed
+    ::DosWaitThread(&vTID, DCWW_WAIT);
+
+    ULONG ulExitCode = pData->vResultCodes.codeResult;
+    delete pData;
+
+    // return the exit code
+    return (long)ulExitCode;
+}
+
+long wxExecute(
+  char**                            ppArgv
+, int                               flags
+, wxProcess*                        pHandler
+)
+{
+    wxString                        sCommand;
+
+    while (*ppArgv != NULL)
+    {
+        sCommand << *ppArgv++ << ' ';
+    }
+    sCommand.RemoveLast();
+    return wxExecute( sCommand
+                     ,flags
+                     ,pHandler
+                    );
+}
+
+bool wxGetFullHostName(
+  wxChar*                           zBuf
+, int                               nMaxSize
+)
+{
+#if wxUSE_NET_API
+    char                            zServer[256];
+    char                            zComputer[256];
+    unsigned long                   ulLevel = 0;
+    unsigned char*                  zBuffer = NULL;
+    unsigned long                   ulBuffer = 256;
+    unsigned long*                  pulTotalAvail = NULL;
+
+    NetBios32GetInfo( (const unsigned char*)zServer
+                     ,(const unsigned char*)zComputer
+                     ,ulLevel
+                     ,zBuffer
+                     ,ulBuffer
+                     ,pulTotalAvail
+                    );
+    strncpy(zBuf, zComputer, nMaxSize);
+    zBuf[nMaxSize] = _T('\0');
+#else
+    strcpy(zBuf, "noname");
+#endif
+    return *zBuf ? TRUE : FALSE;
+    return TRUE;
+}
+