/////////////////////////////////////////////////////////////////////////////
// Name: utils.cpp
// Purpose: DOS implementations of utility functions
-// Author: Vaclav Slavik
+// Author: Vaclav Slavik, M.J.Wetherell
// Id: $Id$
// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
+// (c) 2005 M.J.Wetherell
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/apptrait.h"
#include "wx/log.h"
#include "wx/process.h"
+#include "wx/confbase.h" // for wxExpandEnvVars()
+#include "wx/app.h"
+#include "wx/cmdline.h"
+#include "wx/filename.h"
+#include "wx/wfstream.h"
#include <stdarg.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
+#include <signal.h>
#include <time.h>
+#include <dos.h>
+#include <process.h>
//----------------------------------------------------------------------------
-// misc.
+// Sleep
//----------------------------------------------------------------------------
void wxSleep(int nSecs)
#else
clock_t start = clock();
while ((clock() - start) * 1000 / CLOCKS_PER_SEC < (clock_t)milliseconds)
- ; // FIXME: need to yield here
+ {
+ // yield if in a multitasking environment
+ // "Release Current Virtual Machine's Time Slice" in DPMI 1.0
+ REGS r;
+ memset(&r, 0, sizeof(r));
+ r.x.ax = 0x1680;
+ int386(0x2f, &r, &r);
+ }
#endif
}
#endif
}
-// Get Process ID
-unsigned long wxGetProcessId()
-{
- return (unsigned long)getpid();
-}
+//----------------------------------------------------------------------------
+// Get/Set environment variables
+//----------------------------------------------------------------------------
bool wxGetEnv(const wxString& var, wxString *value)
{
return putenv(buf) == 0;
}
+//----------------------------------------------------------------------------
+// Hostname, username, home directory
+//----------------------------------------------------------------------------
+
+// Based on the MSW implementation
+//
+// Respects the following environment variables in this order: %HomeDrive% +
+// %HomePath%, %UserProfile%, $HOME. Otherwise takes program's directory if
+// wxApp has been initialised, otherwise returns ".".
+//
const wxChar* wxGetHomeDir(wxString *home)
{
- *home = wxT(".");
- return home->c_str();
+ wxString& strDir = *home;
+
+ strDir.clear();
+
+ // try HOMEDRIVE/PATH
+ const wxChar *szHome = wxGetenv(wxT("HOMEDRIVE"));
+ if ( szHome != NULL )
+ strDir << szHome;
+ szHome = wxGetenv(wxT("HOMEPATH"));
+
+ if ( szHome != NULL )
+ {
+ strDir << szHome;
+
+ // the idea is that under NT these variables have default values of
+ // "%systemdrive%:" and "\\". As we don't want to create our config
+ // files in the root directory of the system drive, we will create it
+ // in our program's dir. However, if the user took care to set
+ // HOMEPATH to something other than "\\", we suppose that he knows
+ // what he is doing and use the supplied value.
+ if ( wxStrcmp(szHome, wxT("\\")) == 0 )
+ strDir.clear();
+ }
+
+ if ( strDir.empty() )
+ {
+ // If we have a valid USERPROFILE directory, as is the case in
+ // Windows NT, 2000 and XP, we should use that as our home directory.
+ szHome = wxGetenv(wxT("USERPROFILE"));
+
+ if ( szHome != NULL )
+ strDir = szHome;
+ }
+
+ if ( strDir.empty() )
+ {
+ // If we have a valid HOME directory, as is used on many machines
+ // that have unix utilities on them, we should use that.
+ szHome = wxGetenv(wxT("HOME"));
+
+ if ( szHome != NULL )
+ {
+ strDir = szHome;
+ // when msys sets %HOME% it uses '/' (cygwin uses '\\')
+ strDir.Replace(_T("/"), _T("\\"));
+ }
+ }
+
+ if ( !strDir.empty() )
+ {
+ // sometimes the value of HOME may be "%USERPROFILE%", so reexpand the
+ // value once again, it shouldn't hurt anyhow
+ strDir = wxExpandEnvVars(strDir);
+ }
+ else // fall back to the program directory
+ {
+ if ( wxTheApp )
+ {
+ wxString prog(wxTheApp->argv[0]);
+#ifdef __DJGPP__
+ // djgpp startup code switches the slashes around, so restore them
+ prog.Replace(_T("/"), _T("\\"));
+#endif
+ // it needs to be a full path to be usable
+ if ( prog.compare(1, 2, _T(":\\")) == 0 )
+ wxSplitPath(prog, &strDir, NULL, NULL);
+ }
+ if ( strDir.empty() )
+ {
+ strDir = _T(".");
+ }
+ }
+
+ return strDir.c_str();
+}
+
+wxChar *wxGetUserHome(const wxString& user)
+{
+ static wxString home;
+
+ if (user.empty() || user == wxGetUserId())
+ return wx_const_cast(wxChar*, wxGetHomeDir(&home));
+ else
+ return _T("");
+}
+
+// returns %UserName%, $USER or just "user"
+//
+bool wxGetUserId(wxChar *buf, int n)
+{
+ const wxChar *user = wxGetenv(_T("UserName"));
+
+ if (!user)
+ user = wxGetenv(_T("USER"));
+
+ if (!user)
+ user = _T("user");
+
+ wxStrncpy(buf, user, n);
+ return true;
+}
+
+bool wxGetUserName(wxChar *buf, int n)
+{
+ return wxGetUserId(buf, n);
}
-const wxChar* wxGetUserHomeDir(wxString *home)
+// returns %ComputerName%, or $HOSTNAME, or "host"
+//
+bool wxGetHostName(wxChar *buf, int n)
{
- *home = wxT(".");
- return home->c_str();
+ const wxChar *host = wxGetenv(_T("ComputerName"));
+
+ if (!host)
+ host = wxGetenv(_T("HOSTNAME"));
+
+ if (!host)
+ host = _T("host");
+
+ wxStrncpy(buf, host, n);
+ return true;
}
-wxChar *wxGetUserHome(const wxString &user)
+// adds %UserDnsDomain% to wxGetHostName()
+//
+bool wxGetFullHostName(wxChar *buf, int n)
+{
+ wxGetHostName(buf, n);
+
+ const wxChar *domain = wxGetenv(_T("UserDnsDomain"));
+
+ if (domain)
+ wxStrncat(wxStrncat(buf, _T("."), n), domain, n);
+
+ return true;
+}
+
+//----------------------------------------------------------------------------
+// Processes
+//----------------------------------------------------------------------------
+
+unsigned long wxGetProcessId()
{
- return wxT(".");
+ return (unsigned long)getpid();
}
-#if WXWIN_COMPATIBILITY_2_2
-void wxFatalError(const wxString &msg, const wxString &title)
+int wxKill(long pid, wxSignal sig, wxKillError *rc, int WXUNUSED(flags))
{
- wxFprintf( stderr, _("Error ") );
- if (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
- if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
- wxFprintf( stderr, wxT(".\n") );
- exit(3); // the same exit code as for abort()
+ int result = -1;
+
+ if (pid != (long)wxGetProcessId())
+ {
+ result = raise(sig);
+ if (rc)
+ *rc = result == 0 ? wxKILL_OK : wxKILL_BAD_SIGNAL;
+ }
+ else
+ {
+ wxLogDebug(_T("wxKill can only send signals to the current process under MSDOS"));
+ if (rc)
+ *rc = wxKILL_NO_PROCESS;
+ }
+
+ return result;
}
-#endif // WXWIN_COMPATIBILITY_2_2
-bool wxGetUserId(wxChar *WXUNUSED(buf), int WXUNUSED(sz))
+bool wxShell(const wxString& command /*=wxEmptyString*/)
{
- wxFAIL_MSG( wxT("wxGetUserId not implemented under MS-DOS!") );
- return FALSE;
+ // FIXME: suspend/resume gui
+ int result = system(command);
+
+ if (result == -1)
+ wxLogSysError(_("can't execute '%s'"), command.c_str());
+
+ return result == 0;
}
-bool wxGetUserName(wxChar *WXUNUSED(buf), int WXUNUSED(sz))
+long wxExecute(const wxString& command, int flags, wxProcess *process)
{
- wxFAIL_MSG( wxT("wxGetUserName not implemented under MS-DOS!") );
- return FALSE;
+ // FIXME: shouldn't depend on wxCmdLineParser
+ wxArrayString args(wxCmdLineParser::ConvertStringToArgs(command));
+ size_t n = args.size();
+ wxChar **argv = new wxChar*[n + 1];
+
+ argv[n] = NULL;
+ while (n-- > 0)
+ argv[n] = wx_const_cast(wxChar*, args[n].c_str());
+
+ long result = wxExecute(argv, flags, process);
+
+ delete [] argv;
+ return result;
}
-bool wxGetHostName(wxChar *WXUNUSED(buf), int WXUNUSED(sz))
+#if wxUSE_STREAMS
+
+// A wxFFileInputStream that deletes the file in it's destructor
+//
+class wxTempFileInStream : public wxFFileInputStream
+{
+public:
+ wxTempFileInStream(const wxString& name)
+ : wxFFileInputStream(name, _T("rt"))
+ { }
+
+ ~wxTempFileInStream()
+ {
+ m_file->Close();
+ wxRemoveFile(m_file->GetName());
+ }
+};
+
+// A file descriptor that can be redirected to a file
+//
+class wxRedirectableFd
{
- wxFAIL_MSG( wxT("wxGetHostName not implemented under MS-DOS!") );
- return FALSE;
+public:
+ wxRedirectableFd(int fd) : m_fd(fd), m_dup(-1) { }
+ ~wxRedirectableFd();
+
+ // Redirect the descriptor to a file, similar to ANSI C's freopen, but
+ // for low level descriptors. The desctructor un-redirects. If O_CREAT
+ // is in the flags then the destructor will delete the file unless it is
+ // given away with Release().
+ bool Reopen(const wxString& name, int flags);
+
+ // un-redirect the redirected file descriptor, closing the file, and give
+ // away the filename without deleting it
+ wxString Release();
+
+private:
+ // un-redirect the descriptor, closing the file
+ void Restore();
+
+ int m_fd;
+ int m_dup;
+ wxString m_name;
+};
+
+wxRedirectableFd::~wxRedirectableFd()
+{
+ Restore();
+ if (!m_name.empty())
+ wxRemoveFile(m_name);
}
-bool wxGetFullHostName(wxChar *WXUNUSED(buf), int WXUNUSED(sz))
+bool wxRedirectableFd::Reopen(const wxString& name, int flags)
{
- wxFAIL_MSG( wxT("wxGetFullHostName not implemented under MS-DOS!") );
- return FALSE;
+ wxASSERT(m_dup == -1);
+ bool result = false;
+
+ // save a duplicate so that the descriptor can be closed now and
+ // restored later
+ m_dup = dup(m_fd);
+
+ if (m_dup != -1)
+ {
+ int tmp = open(name.mb_str(), flags);
+
+ if (tmp != -1)
+ {
+ close(m_fd);
+
+ if (flags & O_CREAT)
+ m_name = name;
+
+ result = dup2(tmp, m_fd) == m_fd;
+ close(tmp);
+ }
+ }
+
+ if (!result)
+ wxLogSysError(_("error opening '%s'"), name.c_str());
+
+ return result;
}
-int wxKill(long WXUNUSED(pid), wxSignal WXUNUSED(sig), wxKillError *WXUNUSED(rc), int WXUNUSED(flags))
+void wxRedirectableFd::Restore()
{
- wxFAIL_MSG( wxT("wxKill not implemented under MS-DOS!") );
- return 0;
+ if (m_dup != -1)
+ {
+ close(m_fd);
+ dup2(m_dup, m_fd);
+ close(m_dup);
+ m_dup = -1;
+ }
}
-long wxExecute(const wxString& WXUNUSED(command), int WXUNUSED(flags), wxProcess *WXUNUSED(process))
+wxString wxRedirectableFd::Release()
{
- wxFAIL_MSG( wxT("wxExecute not implemented under MS-DOS!") );
- return 0;
+ Restore();
+ wxString name = m_name;
+ m_name.clear();
+ return name;
}
-long wxExecute(char **WXUNUSED(argv), int WXUNUSED(flags), wxProcess *WXUNUSED(process))
+#endif // wxUSE_STREAMS
+
+// wxExecute implementation
+//
+long wxExecute(wxChar **argv, int flags, wxProcess *process)
{
- wxFAIL_MSG( wxT("wxExecute not implemented under MS-DOS!") );
- return 0;
+#if wxUSE_STREAMS
+ const int STDIN = 0;
+ const int STDOUT = 1;
+ const int STDERR = 2;
+
+ wxRedirectableFd in(STDIN), out(STDOUT), err(STDERR);
+ bool redirect = process && process->IsRedirected() && (flags & wxEXEC_SYNC);
+
+ if (redirect)
+ {
+ // close stdin/out/err and reopen them as files
+ if (!in.Reopen(_T("NUL"), O_RDONLY | O_TEXT))
+ return -1;
+
+ if (!out.Reopen(wxFileName::CreateTempFileName(_T("out")),
+ O_CREAT | O_WRONLY | O_TRUNC | O_TEXT))
+ return -1;
+
+ if (!err.Reopen(wxFileName::CreateTempFileName(_T("err")),
+ O_CREAT | O_WRONLY | O_TRUNC | O_TEXT))
+ return -1;
+ }
+#endif // wxUSE_STREAMS
+
+ // FIXME: suspend/resume gui
+ int mode = flags & wxEXEC_SYNC ? P_WAIT : P_NOWAIT;
+ int result = spawnvp(mode, argv[0], argv);
+
+ if (result == -1)
+ wxLogSysError(_("can't execute '%s'"), argv[0]);
+
+#if wxUSE_STREAMS
+ if (redirect)
+ process->SetPipeStreams(new wxTempFileInStream(out.Release()),
+ new wxFFileOutputStream(_T("NUL"), _T("wt")),
+ new wxTempFileInStream(err.Release()));
+#endif // wxUSE_STREAMS
+
+ return result;
}
+//----------------------------------------------------------------------------
+// Traits for console apps
+//----------------------------------------------------------------------------
+
wxToolkitInfo& wxConsoleAppTraits::GetToolkitInfo()
{
static wxToolkitInfo info;
- info.versionMajor = -1; // FIXME
- info.versionMinor = -1;
+ info.versionMajor = _osmajor;
+ info.versionMinor = _osminor;
info.name = _T("wxBase");
info.os = wxDOS;
return info;
}
+
+//----------------------------------------------------------------------------
+// OS Description
+//----------------------------------------------------------------------------
+
+wxString wxGetOsDescription()
+{
+ wxString osname(_T("DOS"));
+ return osname;
+}
projects / wxWidgets.git / blobdiff