Commited Bryan Petty's blind fix patch.

[wxWidgets.git] / src / unix / utilsunx.cpp

diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp
index 43c51fdf1cd8a55c2406d19134cbc815548ebb62..b26b8df3f5671750ed99d859f1912ab09488bdbd 100644 (file)
--- a/src/unix/utilsunx.cpp
+++ b/src/unix/utilsunx.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        unix/utilsunx.cpp
+// Name:        src/unix/utilsunx.cpp
 // Purpose:     generic Unix implementation of many wx functions
 // Author:      Vadim Zeitlin
 // Id:          $Id$
@@ -18,15 +18,17 @@
 // for compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
-#include "wx/defs.h"
-#include "wx/string.h"
+#include "wx/utils.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/string.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+#endif
 
-#include "wx/intl.h"
-#include "wx/log.h"
-#include "wx/app.h"
 #include "wx/apptrait.h"
 
-#include "wx/utils.h"
 #include "wx/process.h"
 #include "wx/thread.h"
 
@@ -37,13 +39,19 @@
 
 #include <pwd.h>
 
-#if wxUSE_STREAMS
+#ifdef HAVE_SYS_SELECT_H
+#   include <sys/select.h>
+#endif
+
+#define HAS_PIPE_INPUT_STREAM (wxUSE_STREAMS && wxUSE_FILE)
+
+#if HAS_PIPE_INPUT_STREAM
 
 // define this to let wxexec.cpp know that we know what we're doing
 #define _WX_USED_BY_WXEXECUTE_
 #include "../common/execcmn.cpp"
 
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
 #if wxUSE_BASE
 
@@ -280,7 +288,7 @@ long wxExecute( const wxString& command, int flags, wxProcess *process )
     // split the command line in arguments
     do
     {
-        argument=wxT("");
+        argument = wxEmptyString;
         quotechar = wxT('\0');
 
         // eat leading whitespace:
@@ -401,23 +409,11 @@ bool wxShutdown(wxShutdownFlags wFlags)
     return system(wxString::Format(_T("init %c"), level).mb_str()) == 0;
 }
 
-wxPowerType wxGetPowerType()
-{
-    // TODO
-    return wxPOWER_UNKNOWN;
-}
-
-wxBatteryState wxGetBatteryState()
-{
-    // TODO
-    return wxBATTERY_UNKNOWN_STATE;
-}
-
 // ----------------------------------------------------------------------------
 // wxStream classes to support IO redirection in wxExecute
 // ----------------------------------------------------------------------------
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
 
 bool wxPipeInputStream::CanRead() const
 {
@@ -457,7 +453,7 @@ bool wxPipeInputStream::CanRead() const
     }
 }
 
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
 // ----------------------------------------------------------------------------
 // wxExecute: the real worker function
@@ -641,16 +637,16 @@ long wxExecute(wxChar **argv, int flags, wxProcess *process)
 
         // prepare for IO redirection
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
         // the input buffer bufOut is connected to stdout, this is why it is
         // called bufOut and not bufIn
         wxStreamTempInputBuffer bufOut,
                                 bufErr;
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
         if ( process && process->IsRedirected() )
         {
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
             wxOutputStream *inStream =
                 new wxFileOutputStream(pipeIn.Detach(wxPipe::Write));
 
@@ -667,7 +663,7 @@ long wxExecute(wxChar **argv, int flags, wxProcess *process)
 
             execData.bufOut = &bufOut;
             execData.bufErr = &bufErr;
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
         }
 
         if ( pipeIn.IsOk() )
@@ -750,6 +746,35 @@ char *wxGetUserHome( const wxString &user )
 // network and user id routines
 // ----------------------------------------------------------------------------
 
+// private utility function which returns output of the given command, removing
+// the trailing newline
+static wxString wxGetCommandOutput(const wxString &cmd)
+{
+    FILE *f = popen(cmd.ToAscii(), "r");
+    if ( !f )
+    {
+        wxLogSysError(_T("Executing \"%s\" failed"), cmd.c_str());
+        return wxEmptyString;
+    }
+
+    wxString s;
+    char buf[256];
+    while ( !feof(f) )
+    {
+        if ( !fgets(buf, sizeof(buf), f) )
+            break;
+
+        s += wxString::FromAscii(buf);
+    }
+
+    pclose(f);
+
+    if ( !s.empty() && s.Last() == _T('\n') )
+        s.RemoveLast();
+
+    return s;
+}
+
 // retrieve either the hostname or FQDN depending on platform (caller must
 // check whether it's one or the other, this is why this function is for
 // private use only)
@@ -866,25 +891,54 @@ bool wxGetUserName(wxChar *buf, int sz)
     return false;
 }
 
-// this function is in mac/utils.cpp for wxMac
+bool wxIsPlatform64Bit()
+{
+    wxString machine = wxGetCommandOutput(wxT("uname -m"));
+
+    // NOTE: these tests are not 100% reliable!
+    return machine.Contains(wxT("AMD64")) ||
+           machine.Contains(wxT("IA64")) ||
+           machine.Contains(wxT("x64")) ||
+           machine.Contains(wxT("X64")) ||
+           machine.Contains(wxT("alpha")) ||
+           machine.Contains(wxT("hppa64")) ||
+           machine.Contains(wxT("ppc64"));
+}
+
+// these functions are in mac/utils.cpp for wxMac
 #ifndef __WXMAC__
 
-wxString wxGetOsDescription()
+wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 {
-    FILE *f = popen("uname -s -r -m", "r");
-    if (f)
+    // get OS version
+    int major, minor;
+    wxString release = wxGetCommandOutput(wxT("uname -r"));
+    if ( !release.empty() && wxSscanf(release, wxT("%d.%d"), &major, &minor) != 2 )
     {
-        char buf[256];
-        size_t c = fread(buf, 1, sizeof(buf) - 1, f);
-        pclose(f);
-        // Trim newline from output.
-        if (c && buf[c - 1] == '\n')
-            --c;
-        buf[c] = '\0';
-        return wxString::FromAscii( buf );
+        // unrecognized uname string format
+        major =
+        minor = -1;
     }
-    wxFAIL_MSG( _T("uname failed") );
-    return _T("");
+
+    if ( verMaj )
+        *verMaj = major;
+    if ( verMin )
+        *verMin = minor;
+
+    // try to understand which OS are we running
+    wxString kernel = wxGetCommandOutput(wxT("uname -s"));
+    if ( kernel.empty() )
+        kernel = wxGetCommandOutput(wxT("uname -o"));
+
+    if ( kernel.empty() )
+        return wxOS_UNKNOWN;
+
+    return wxPlatformInfo::GetOperatingSystemId(kernel);
+}
+
+wxString wxGetOsDescription()
+{
+    return wxGetCommandOutput(wxT("uname -s -r -m"));
 }
 
 #endif // !__WXMAC__
@@ -1182,7 +1236,7 @@ int wxGUIAppTraits::WaitForChild(wxExecuteData& execData)
         {
             bool idle = true;
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
             if ( execData.bufOut )
             {
                 execData.bufOut->Update();
@@ -1194,7 +1248,7 @@ int wxGUIAppTraits::WaitForChild(wxExecuteData& execData)
                 execData.bufErr->Update();
                 idle = false;
             }
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
             // don't consume 100% of the CPU while we're sitting in this
             // loop