Add wxDataViewRendererBase::PrepareForItem() helper.

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

diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp
index 23b2b17a36478a39140a4404d5e6af1fa176b924..fa2eb472873f9e724f9ec3e3eccc1461f1b08166 100644 (file)
--- a/src/unix/utilsunx.cpp
+++ b/src/unix/utilsunx.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        src/unix/utilsunx.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        src/unix/utilsunx.cpp

-// Purpose:     generic Unix implementation of many wx functions
+// Purpose:     generic Unix implementation of many wx functions (for wxBase)

 // Author:      Vadim Zeitlin
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
 // Author:      Vadim Zeitlin
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin


@@ -202,7 +202,7 @@ void wxMicroSleep(unsigned long microseconds)
     tmReq.tv_nsec = (microseconds % 1000000) * 1000;
 
     // we're not interested in remaining time nor in return value
     tmReq.tv_nsec = (microseconds % 1000000) * 1000;
 
     // we're not interested in remaining time nor in return value

-    (void)nanosleep(&tmReq, (timespec *)NULL);
+    (void)nanosleep(&tmReq, NULL);

 #elif defined(HAVE_USLEEP)
     // uncomment this if you feel brave or if you are sure that your version
     // of Solaris has a safe usleep() function but please notice that usleep()
 #elif defined(HAVE_USLEEP)
     // uncomment this if you feel brave or if you are sure that your version
     // of Solaris has a safe usleep() function but please notice that usleep()


@@ -255,7 +255,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *rc, int flags)
 
             default:
                 // this goes against Unix98 docs so log it
 
             default:
                 // this goes against Unix98 docs so log it

-                wxLogDebug(_T("unexpected kill(2) return value %d"), err);
+                wxLogDebug(wxT("unexpected kill(2) return value %d"), err);

 
                 // something else...
                 *rc = wxKILL_ERROR;
 
                 // something else...
                 *rc = wxKILL_ERROR;


@@ -266,25 +266,31 @@ int wxKill(long pid, wxSignal sig, wxKillError *rc, int flags)
 }
 
 // Shutdown or reboot the PC
 }
 
 // Shutdown or reboot the PC

-bool wxShutdown(wxShutdownFlags wFlags)
+bool wxShutdown(int flags)

 {
 {

+    flags &= ~wxSHUTDOWN_FORCE;
+

     wxChar level;
     wxChar level;

-    switch ( wFlags )
+    switch ( flags )

     {
         case wxSHUTDOWN_POWEROFF:
     {
         case wxSHUTDOWN_POWEROFF:

-            level = _T('0');
+            level = wxT('0');

             break;
 
         case wxSHUTDOWN_REBOOT:
             break;
 
         case wxSHUTDOWN_REBOOT:

-            level = _T('6');
+            level = wxT('6');

             break;
 
             break;
 

+        case wxSHUTDOWN_LOGOFF:
+            // TODO: use dcop to log off?
+            return false;
+

         default:
         default:

-            wxFAIL_MSG( _T("unknown wxShutdown() flag") );
+            wxFAIL_MSG( wxT("unknown wxShutdown() flag") );

             return false;
     }
 
             return false;
     }
 

-    return system(wxString::Format(_T("init %c"), level).mb_str()) == 0;
+    return system(wxString::Format("init %c", level).mb_str()) == 0;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -320,7 +326,7 @@ bool wxPipeInputStream::CanRead() const
             return false;
 
         default:
             return false;
 
         default:

-            wxFAIL_MSG(_T("unexpected select() return value"));
+            wxFAIL_MSG(wxT("unexpected select() return value"));

             // still fall through
 
         case 1:
             // still fall through
 
         case 1:


@@ -343,12 +349,12 @@ static wxString wxMakeShellCommand(const wxString& command)
     if ( !command )
     {
         // just an interactive shell
     if ( !command )
     {
         // just an interactive shell

-        cmd = _T("xterm");
+        cmd = wxT("xterm");

     }
     else
     {
         // execute command in a shell
     }
     else
     {
         // execute command in a shell

-        cmd << _T("/bin/sh -c '") << command << _T('\'');
+        cmd << wxT("/bin/sh -c '") << command << wxT('\'');

     }
 
     return cmd;
     }
 
     return cmd;


@@ -361,7 +367,7 @@ bool wxShell(const wxString& command)
 
 bool wxShell(const wxString& command, wxArrayString& output)
 {
 
 bool wxShell(const wxString& command, wxArrayString& output)
 {

-    wxCHECK_MSG( !command.empty(), false, _T("can't exec shell non interactively") );
+    wxCHECK_MSG( !command.empty(), false, wxT("can't exec shell non interactively") );

 
     return wxExecute(wxMakeShellCommand(command), output);
 }
 
     return wxExecute(wxMakeShellCommand(command), output);
 }


@@ -388,7 +394,7 @@ public:
     ArgsArray(wchar_t **wargv)
     {
         int argc = 0;
     ArgsArray(wchar_t **wargv)
     {
         int argc = 0;

-        while ( *wargv++ )
+        while ( wargv[argc] )

             argc++;
 
         Init(argc);
             argc++;
 
         Init(argc);


@@ -423,7 +429,7 @@ private:
     int m_argc;
     char **m_argv;
 
     int m_argc;
     char **m_argv;
 

-    DECLARE_NO_COPY_CLASS(ArgsArray)
+    wxDECLARE_NO_COPY_CLASS(ArgsArray);

 };
 
 } // anonymous namespace
 };
 
 } // anonymous namespace


@@ -436,27 +442,30 @@ private:
 bool wxMacLaunch(char **argv);
 #endif
 
 bool wxMacLaunch(char **argv);
 #endif
 

-long wxExecute(const wxString& command, int flags, wxProcess *process)
+long wxExecute(const wxString& command, int flags, wxProcess *process,
+        const wxExecuteEnv *env)

 {
     ArgsArray argv(wxCmdLineParser::ConvertStringToArgs(command,
                                                         wxCMD_LINE_SPLIT_UNIX));
 
 {
     ArgsArray argv(wxCmdLineParser::ConvertStringToArgs(command,
                                                         wxCMD_LINE_SPLIT_UNIX));
 

-    return wxExecute(argv, flags, process);
+    return wxExecute(argv, flags, process, env);

 }
 
 #if wxUSE_UNICODE
 
 }
 
 #if wxUSE_UNICODE
 

-long wxExecute(wchar_t **wargv, int flags, wxProcess *process)
+long wxExecute(wchar_t **wargv, int flags, wxProcess *process,
+        const wxExecuteEnv *env)

 {
     ArgsArray argv(wargv);
 
 {
     ArgsArray argv(wargv);
 

-    return wxExecute(argv, flags, process);
+    return wxExecute(argv, flags, process, env);

 }
 
 #endif // wxUSE_UNICODE
 
 // wxExecute: the real worker function
 }
 
 #endif // wxUSE_UNICODE
 
 // wxExecute: the real worker function

-long wxExecute(char **argv, int flags, wxProcess *process)
+long wxExecute(char **argv, int flags, wxProcess *process,
+        const wxExecuteEnv *env)

 {
     // for the sync execution, we return -1 to indicate failure, but for async
     // case we return 0 which is never a valid PID
 {
     // for the sync execution, we return -1 to indicate failure, but for async
     // case we return 0 which is never a valid PID


@@ -474,10 +483,10 @@ long wxExecute(char **argv, int flags, wxProcess *process)
     // don't know what yet, so for now just warn the user (this is the least we
     // can do) about it
     wxASSERT_MSG( wxThread::IsMain(),
     // don't know what yet, so for now just warn the user (this is the least we
     // can do) about it
     wxASSERT_MSG( wxThread::IsMain(),

-                    _T("wxExecute() can be called only from the main thread") );
+                    wxT("wxExecute() can be called only from the main thread") );

 #endif // wxUSE_THREADS
 
 #endif // wxUSE_THREADS
 

-#if defined(__DARWIN__)
+#if defined(__WXCOCOA__) || ( defined(__WXOSX_MAC__) && wxOSX_USE_COCOA_OR_CARBON )

     // wxMacLaunch() only executes app bundles and only does it asynchronously.
     // It returns false if the target is not an app bundle, thus falling
     // through to the regular code for non app bundles.
     // wxMacLaunch() only executes app bundles and only does it asynchronously.
     // It returns false if the target is not an app bundle, thus falling
     // through to the regular code for non app bundles.


@@ -536,30 +545,10 @@ long wxExecute(char **argv, int flags, wxProcess *process)
     }
     else if ( pid == 0 )  // we're in child
     {
     }
     else if ( pid == 0 )  // we're in child
     {

-        // These lines close the open file descriptors to to avoid any
-        // input/output which might block the process or irritate the user. If
-        // one wants proper IO for the subprocess, the right thing to do is to
-        // start an xterm executing it.
-        if ( !(flags & wxEXEC_SYNC) )
-        {
-            // FD_SETSIZE is unsigned under BSD, signed under other platforms
-            // so we need a cast to avoid warnings on all platforms
-            for ( int fd = 0; fd < (int)FD_SETSIZE; fd++ )
-            {
-                if ( fd == pipeIn[wxPipe::Read]
-                        || fd == pipeOut[wxPipe::Write]
-                        || fd == pipeErr[wxPipe::Write]
-                        || fd == (execData.pipeEndProcDetect)[wxPipe::Write] )
-                {
-                    // don't close this one, we still need it
-                    continue;
-                }
-
-                // leave stderr opened too, it won't do any harm
-                if ( fd != STDERR_FILENO )
-                    close(fd);
-            }
-        }
+        // NB: we used to close all the unused descriptors of the child here
+        //     but this broke some programs which relied on e.g. FD 1 being
+        //     always opened so don't do it any more, after all there doesn't
+        //     seem to be any real problem with keeping them opened

 
 #if !defined(__VMS) && !defined(__EMX__)
         if ( flags & wxEXEC_MAKE_GROUP_LEADER )
 
 #if !defined(__VMS) && !defined(__EMX__)
         if ( flags & wxEXEC_MAKE_GROUP_LEADER )


@@ -591,6 +580,40 @@ long wxExecute(char **argv, int flags, wxProcess *process)
             pipeErr.Close();
         }
 
             pipeErr.Close();
         }
 

+        // Process additional options if we have any
+        if ( env )
+        {
+            // Change working directory if it is specified
+            if ( !env->cwd.empty() )
+                wxSetWorkingDirectory(env->cwd);
+
+            // Change environment if needed.
+            //
+            // NB: We can't use execve() currently because we allow using
+            //     non full paths to wxExecute(), i.e. we want to search for
+            //     the program in PATH. However it just might be simpler/better
+            //     to do the search manually and use execve() envp parameter to
+            //     set up the environment of the child process explicitly
+            //     instead of doing what we do below.
+            if ( !env->env.empty() )
+            {
+                wxEnvVariableHashMap oldenv;
+                wxGetEnvMap(&oldenv);
+
+                // Remove unwanted variables
+                wxEnvVariableHashMap::const_iterator it;
+                for ( it = oldenv.begin(); it != oldenv.end(); ++it )
+                {
+                    if ( env->env.find(it->first) == env->env.end() )
+                        wxUnsetEnv(it->first);
+                }
+
+                // And add the new ones (possibly replacing the old values)
+                for ( it = env->env.begin(); it != env->env.end(); ++it )
+                    wxSetEnv(it->first, it->second);
+            }
+        }
+

         execvp(*argv, argv);
 
         fprintf(stderr, "execvp(");
         execvp(*argv, argv);
 
         fprintf(stderr, "execvp(");


@@ -615,6 +638,8 @@ long wxExecute(char **argv, int flags, wxProcess *process)
     {
         // save it for WaitForChild() use
         execData.pid = pid;
     {
         // save it for WaitForChild() use
         execData.pid = pid;

+        if (execData.process)
+            execData.process->SetPid(pid);  // and also in the wxProcess

 
         // prepare for IO redirection
 
 
         // prepare for IO redirection
 


@@ -734,7 +759,7 @@ static wxString wxGetCommandOutput(const wxString &cmd)
     FILE *f = popen(cmd.ToAscii(), "r");
     if ( !f )
     {
     FILE *f = popen(cmd.ToAscii(), "r");
     if ( !f )
     {

-        wxLogSysError(_T("Executing \"%s\" failed"), cmd.c_str());
+        wxLogSysError(wxT("Executing \"%s\" failed"), cmd.c_str());

         return wxEmptyString;
     }
 
         return wxEmptyString;
     }
 


@@ -750,7 +775,7 @@ static wxString wxGetCommandOutput(const wxString &cmd)
 
     pclose(f);
 
 
     pclose(f);
 

-    if ( !s.empty() && s.Last() == _T('\n') )
+    if ( !s.empty() && s.Last() == wxT('\n') )

         s.RemoveLast();
 
     return s;
         s.RemoveLast();
 
     return s;


@@ -771,16 +796,14 @@ static bool wxGetHostNameInternal(wxChar *buf, int sz)
     bool ok = uname(&uts) != -1;
     if ( ok )
     {
     bool ok = uname(&uts) != -1;
     if ( ok )
     {

-        wxStrncpy(buf, wxSafeConvertMB2WX(uts.nodename), sz - 1);
-        buf[sz] = wxT('\0');
+        wxStrlcpy(buf, wxSafeConvertMB2WX(uts.nodename), sz);

     }
 #elif defined(HAVE_GETHOSTNAME)
     char cbuf[sz];
     bool ok = gethostname(cbuf, sz) != -1;
     if ( ok )
     {
     }
 #elif defined(HAVE_GETHOSTNAME)
     char cbuf[sz];
     bool ok = gethostname(cbuf, sz) != -1;
     if ( ok )
     {

-        wxStrncpy(buf, wxSafeConvertMB2WX(cbuf), sz - 1);
-        buf[sz] = wxT('\0');
+        wxStrlcpy(buf, wxSafeConvertMB2WX(cbuf), sz);

     }
 #else // no uname, no gethostname
     wxFAIL_MSG(wxT("don't know host name for this machine"));
     }
 #else // no uname, no gethostname
     wxFAIL_MSG(wxT("don't know host name for this machine"));


@@ -833,7 +856,7 @@ bool wxGetFullHostName(wxChar *buf, int sz)
             else
             {
                 // the canonical name
             else
             {
                 // the canonical name

-                wxStrncpy(buf, wxSafeConvertMB2WX(host->h_name), sz);
+                wxStrlcpy(buf, wxSafeConvertMB2WX(host->h_name), sz);

             }
         }
         //else: it's already a FQDN (BSD behaves this way)
             }
         }
         //else: it's already a FQDN (BSD behaves this way)


@@ -849,7 +872,7 @@ bool wxGetUserId(wxChar *buf, int sz)
     *buf = wxT('\0');
     if ((who = getpwuid(getuid ())) != NULL)
     {
     *buf = wxT('\0');
     if ((who = getpwuid(getuid ())) != NULL)
     {

-        wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_name), sz - 1);
+        wxStrlcpy (buf, wxSafeConvertMB2WX(who->pw_name), sz);

         return true;
     }
 
         return true;
     }
 


@@ -867,7 +890,7 @@ bool wxGetUserName(wxChar *buf, int sz)
        char *comma = strchr(who->pw_gecos, ',');
        if (comma)
            *comma = '\0'; // cut off non-name comment fields
        char *comma = strchr(who->pw_gecos, ',');
        if (comma)
            *comma = '\0'; // cut off non-name comment fields

-       wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_gecos), sz - 1);
+       wxStrlcpy(buf, wxSafeConvertMB2WX(who->pw_gecos), sz);

        return true;
     }
 
        return true;
     }
 


@@ -887,7 +910,26 @@ bool wxIsPlatform64Bit()
                 machine.Contains(wxT("alpha"));
 }
 
                 machine.Contains(wxT("alpha"));
 }
 

-// these functions are in mac/utils.cpp for wxMac
+#ifdef __LINUX__
+wxLinuxDistributionInfo wxGetLinuxDistributionInfo()
+{
+    const wxString id = wxGetCommandOutput(wxT("lsb_release --id"));
+    const wxString desc = wxGetCommandOutput(wxT("lsb_release --description"));
+    const wxString rel = wxGetCommandOutput(wxT("lsb_release --release"));
+    const wxString codename = wxGetCommandOutput(wxT("lsb_release --codename"));
+
+    wxLinuxDistributionInfo ret;
+
+    id.StartsWith("Distributor ID:\t", &ret.Id);
+    desc.StartsWith("Description:\t", &ret.Description);
+    rel.StartsWith("Release:\t", &ret.Release);
+    codename.StartsWith("Codename:\t", &ret.CodeName);
+
+    return ret;
+}
+#endif
+
+// these functions are in src/osx/utilsexc_base.cpp for wxMac

 #ifndef __WXMAC__
 
 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 #ifndef __WXMAC__
 
 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)


@@ -1090,7 +1132,7 @@ static bool wxDoSetEnv(const wxString& variable, const char *value)
 #elif defined(HAVE_PUTENV)
     wxString s = variable;
     if ( value )
 #elif defined(HAVE_PUTENV)
     wxString s = variable;
     if ( value )

-        s << _T('=') << value;
+        s << wxT('=') << value;

 
     // transform to ANSI
     const wxWX2MBbuf p = s.mb_str();
 
     // transform to ANSI
     const wxWX2MBbuf p = s.mb_str();


@@ -1173,7 +1215,7 @@ bool wxHandleFatalExceptions(bool doit)
         ok &= sigaction(SIGSEGV, &act, &s_handlerSEGV) == 0;
         if ( !ok )
         {
         ok &= sigaction(SIGSEGV, &act, &s_handlerSEGV) == 0;
         if ( !ok )
         {

-            wxLogDebug(_T("Failed to install our signal handler."));
+            wxLogDebug(wxT("Failed to install our signal handler."));

         }
 
         s_savedHandlers = true;
         }
 
         s_savedHandlers = true;


@@ -1187,7 +1229,7 @@ bool wxHandleFatalExceptions(bool doit)
         ok &= sigaction(SIGSEGV, &s_handlerSEGV, NULL) == 0;
         if ( !ok )
         {
         ok &= sigaction(SIGSEGV, &s_handlerSEGV, NULL) == 0;
         if ( !ok )
         {

-            wxLogDebug(_T("Failed to uninstall our signal handler."));
+            wxLogDebug(wxT("Failed to uninstall our signal handler."));

         }
 
         s_savedHandlers = false;
         }
 
         s_savedHandlers = false;


@@ -1279,7 +1321,7 @@ public:
 protected:
     const int m_fd;
 
 protected:
     const int m_fd;
 

-    DECLARE_NO_COPY_CLASS(wxReadFDIOHandler)
+    wxDECLARE_NO_COPY_CLASS(wxReadFDIOHandler);

 };
 
 // class for monitoring our end of the process detection pipe, simply sets a
 };
 
 // class for monitoring our end of the process detection pipe, simply sets a


@@ -1300,10 +1342,10 @@ public:
 private:
     bool m_terminated;
 
 private:
     bool m_terminated;
 

-    DECLARE_NO_COPY_CLASS(wxEndHandler)
+    wxDECLARE_NO_COPY_CLASS(wxEndHandler);

 };
 
 };
 

-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM

 
 // class for monitoring our ends of child stdout/err, should be constructed
 // with the FD and stream from wxExecuteData and will do nothing if they're
 
 // class for monitoring our ends of child stdout/err, should be constructed
 // with the FD and stream from wxExecuteData and will do nothing if they're


@@ -1329,10 +1371,10 @@ public:
 private:
     wxStreamTempInputBuffer * const m_buf;
 
 private:
     wxStreamTempInputBuffer * const m_buf;
 

-    DECLARE_NO_COPY_CLASS(wxRedirectedIOHandler)
+    wxDECLARE_NO_COPY_CLASS(wxRedirectedIOHandler);

 };
 
 };
 

-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM

 
 // helper function which calls waitpid() and analyzes the result
 int DoWaitForChild(int pid, int flags = 0)
 
 // helper function which calls waitpid() and analyzes the result
 int DoWaitForChild(int pid, int flags = 0)


@@ -1368,15 +1410,21 @@ int DoWaitForChild(int pid, int flags = 0)
     {
         wxASSERT_MSG( rc == pid, "unexpected waitpid() return value" );
 
     {
         wxASSERT_MSG( rc == pid, "unexpected waitpid() return value" );
 

+        // notice that the caller expects the exit code to be signed, e.g. -1
+        // instead of 255 so don't assign WEXITSTATUS() to an int
+        signed char exitcode;

         if ( WIFEXITED(status) )
         if ( WIFEXITED(status) )

-            return WEXITSTATUS(status);
+            exitcode = WEXITSTATUS(status);

         else if ( WIFSIGNALED(status) )
         else if ( WIFSIGNALED(status) )

-            return -WTERMSIG(status);
+            exitcode = -WTERMSIG(status);

         else
         {
             wxLogError("Child process (PID %d) exited for unknown reason, "
                        "status = %d", pid, status);
         else
         {
             wxLogError("Child process (PID %d) exited for unknown reason, "
                        "status = %d", pid, status);

+            exitcode = -1;

         }
         }

+
+        return exitcode;

     }
 
     return -1;
     }
 
     return -1;


@@ -1407,7 +1455,7 @@ int wxAppTraits::WaitForChild(wxExecuteData& execData)
     }
     //else: synchronous execution case
 
     }
     //else: synchronous execution case
 

-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM && wxUSE_SOCKETS

     wxProcess * const process = execData.process;
     if ( process && process->IsRedirected() )
     {
     wxProcess * const process = execData.process;
     if ( process && process->IsRedirected() )
     {


@@ -1431,7 +1479,7 @@ int wxAppTraits::WaitForChild(wxExecuteData& execData)
         }
     }
     //else: no IO redirection, just block waiting for the child to exit
         }
     }
     //else: no IO redirection, just block waiting for the child to exit

-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM

 
     return DoWaitForChild(execData.pid);
 }
 
     return DoWaitForChild(execData.pid);
 }