/////////////////////////////////////////////////////////////////////////////
-// Name: utilsunx.cpp
+// Name: unix/utilsunx.cpp
// Purpose: generic Unix implementation of many wx functions
// Author: Vadim Zeitlin
// Id: $Id$
#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"
-#include "wx/stream.h"
+#include "wx/wfstream.h"
+#include "wx/unix/execute.h"
+
+#if wxUSE_STREAMS
+
+// 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
+
+#if wxUSE_BASE
+
+#if defined( __MWERKS__ ) && defined(__MACH__)
+#define WXWIN_OS_DESCRIPTION "MacOS X"
+#define HAVE_NANOSLEEP
+#endif
+
+// not only the statfs syscall is called differently depending on platform, but
+// one of its incarnations, statvfs(), takes different arguments under
+// different platforms and even different versions of the same system (Solaris
+// 7 and 8): if you want to test for this, don't forget that the problems only
+// appear if the large files support is enabled
#ifdef HAVE_STATFS
- #include <sys/vfs.h>
+ #ifdef __BSD__
+ #include <sys/param.h>
+ #include <sys/mount.h>
+ #else // !__BSD__
+ #include <sys/vfs.h>
+ #endif // __BSD__/!__BSD__
+
+ #define wxStatfs statfs
#endif // HAVE_STATFS
-#if wxUSE_GUI
- #include "wx/unix/execute.h"
+#ifdef HAVE_STATVFS
+ #include <sys/statvfs.h>
+
+ #define wxStatfs statvfs
+#endif // HAVE_STATVFS
+
+#if defined(HAVE_STATFS) || defined(HAVE_STATVFS)
+ // WX_STATFS_T is detected by configure
+ #define wxStatfs_t WX_STATFS_T
#endif
// SGI signal.h defines signal handler arguments differently depending on
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <unistd.h>
#include <sys/wait.h>
+#include <unistd.h>
#include <pwd.h>
#include <errno.h>
#include <netdb.h>
int err = kill((pid_t)pid, (int)sig);
if ( rc )
{
- switch ( err )
+ switch ( errno )
{
case 0:
*rc = wxKILL_OK;
#define WXEXECUTE_NARGS 127
-long wxExecute( const wxString& command, bool sync, wxProcess *process )
+long wxExecute( const wxString& command, int flags, wxProcess *process )
{
wxCHECK_MSG( !command.IsEmpty(), 0, wxT("can't exec empty command") );
+#if wxUSE_THREADS
+ // fork() doesn't mix well with POSIX threads: on many systems the program
+ // deadlocks or crashes for some reason. Probably our code is buggy and
+ // doesn't do something which must be done to allow this to work, but I
+ // 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") );
+#endif // wxUSE_THREADS
+
int argc = 0;
wxChar *argv[WXEXECUTE_NARGS];
wxString argument;
argv[argc] = NULL;
// do execute the command
- long lRc = wxExecute(argv, sync, process);
+ long lRc = wxExecute(argv, flags, process);
// clean up
argc = 0;
bool wxShell(const wxString& command)
{
- return wxExecute(wxMakeShellCommand(command), TRUE /* sync */) == 0;
+ return wxExecute(wxMakeShellCommand(command), wxEXEC_SYNC) == 0;
}
bool wxShell(const wxString& command, wxArrayString& output)
return wxExecute(wxMakeShellCommand(command), output);
}
-#if wxUSE_GUI
-
-void wxHandleProcessTermination(wxEndProcessData *proc_data)
+// Shutdown or reboot the PC
+bool wxShutdown(wxShutdownFlags wFlags)
{
- int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
-
- // waitpid is POSIX so should be available everywhere, however on older
- // systems wait() might be used instead in a loop (until the right pid
- // terminates)
- int status = 0;
- int rc;
-
- // wait for child termination and if waitpid() was interrupted, try again
- do
+ wxChar level;
+ switch ( wFlags )
{
- rc = waitpid(pid, &status, 0);
- }
- while ( rc == -1 && errno == EINTR );
+ case wxSHUTDOWN_POWEROFF:
+ level = _T('0');
+ break;
- if (rc == -1)
- {
- // JACS: this could happen if the process was terminated and waitpid called,
- // so commenting out for now.
- //wxLogSysError(_("Waiting for subprocess termination failed (return code = -1)"));
- }
- else if (! (WIFEXITED(status)))
- {
- wxLogSysError(_("Waiting for subprocess termination failed (WIFEXITED returned zero)"));
-
- /* AFAIK, this can only happen if something went wrong within
- wxGTK, i.e. due to a race condition or some serious bug.
- After having fixed the order of statements in
- GTK_EndProcessDetector(). (KB)
- */
- }
- else if (WIFSIGNALED(status))
- {
- wxLogSysError(_("Waiting for subprocess termination failed (signal not caught)"));
-
- /* AFAIK, this can only happen if something went wrong within
- wxGTK, i.e. due to a race condition or some serious bug.
- After having fixed the order of statements in
- GTK_EndProcessDetector(). (KB)
- */
- }
- // else
- {
- // notify user about termination if required
- if (proc_data->process)
- {
- proc_data->process->OnTerminate(proc_data->pid,
- WEXITSTATUS(status));
- }
- // clean up
- if ( proc_data->pid > 0 )
- {
- delete proc_data;
- }
- else
- {
- // wxExecute() will know about it
- proc_data->exitcode = status;
+ case wxSHUTDOWN_REBOOT:
+ level = _T('6');
+ break;
- proc_data->pid = 0;
- }
+ default:
+ wxFAIL_MSG( _T("unknown wxShutdown() flag") );
+ return FALSE;
}
+
+ return system(wxString::Format(_T("init %c"), level).mb_str()) == 0;
}
-#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// wxStream classes to support IO redirection in wxExecute
#if wxUSE_STREAMS
-class wxProcessFileInputStream : public wxInputStream
-{
-public:
- wxProcessFileInputStream(int fd) { m_fd = fd; }
- ~wxProcessFileInputStream() { close(m_fd); }
-
- virtual bool Eof() const;
-
-protected:
- size_t OnSysRead(void *buffer, size_t bufsize);
-
-protected:
- int m_fd;
-};
-
-class wxProcessFileOutputStream : public wxOutputStream
-{
-public:
- wxProcessFileOutputStream(int fd) { m_fd = fd; }
- ~wxProcessFileOutputStream() { close(m_fd); }
-
-protected:
- size_t OnSysWrite(const void *buffer, size_t bufsize);
-
-protected:
- int m_fd;
-};
-
-bool wxProcessFileInputStream::Eof() const
+bool wxPipeInputStream::CanRead() const
{
if ( m_lasterror == wxSTREAM_EOF )
- return TRUE;
+ return FALSE;
// check if there is any input available
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 0;
+ const int fd = m_file->fd();
+
fd_set readfds;
FD_ZERO(&readfds);
- FD_SET(m_fd, &readfds);
- switch ( select(m_fd + 1, &readfds, NULL, NULL, &tv) )
+ FD_SET(fd, &readfds);
+ switch ( select(fd + 1, &readfds, NULL, NULL, &tv) )
{
case -1:
wxLogSysError(_("Impossible to get child process input"));
// fall through
case 0:
- return TRUE;
+ return FALSE;
default:
wxFAIL_MSG(_T("unexpected select() return value"));
// still fall through
case 1:
- // input available: check if there is any
- return wxInputStream::Eof();
+ // input available -- or maybe not, as select() returns 1 when a
+ // read() will complete without delay, but it could still not read
+ // anything
+ return !Eof();
}
}
-size_t wxProcessFileInputStream::OnSysRead(void *buffer, size_t bufsize)
-{
- int ret = read(m_fd, buffer, bufsize);
- if ( ret == 0 )
- {
- m_lasterror = wxSTREAM_EOF;
- }
- else if ( ret == -1 )
- {
- m_lasterror = wxSTREAM_READ_ERROR;
- ret = 0;
- }
- else
- {
- m_lasterror = wxSTREAM_NOERROR;
- }
-
- return ret;
-}
-
-size_t wxProcessFileOutputStream::OnSysWrite(const void *buffer, size_t bufsize)
-{
- int ret = write(m_fd, buffer, bufsize);
- if ( ret == -1 )
- {
- m_lasterror = wxSTREAM_WRITE_ERROR;
- ret = 0;
- }
- else
- {
- m_lasterror = wxSTREAM_NOERROR;
- }
+#endif // wxUSE_STREAMS
- return ret;
-}
+// ----------------------------------------------------------------------------
+// wxExecute: the real worker function
+// ----------------------------------------------------------------------------
-#endif // wxUSE_STREAMS
+#ifdef __VMS
+ #pragma message disable codeunreachable
+#endif
long wxExecute(wxChar **argv,
- bool sync,
+ int flags,
wxProcess *process)
{
// for the sync execution, we return -1 to indicate failure, but for async
//
// we define this as a macro, not a variable, to avoid compiler warnings
// about "ERROR_RETURN_CODE value may be clobbered by fork()"
- #define ERROR_RETURN_CODE ((sync) ? -1 : 0)
+ #define ERROR_RETURN_CODE ((flags & wxEXEC_SYNC) ? -1 : 0)
wxCHECK_MSG( *argv, ERROR_RETURN_CODE, wxT("can't exec empty command") );
wxChar **mb_argv = argv;
#endif // Unicode/ANSI
-#if wxUSE_GUI
+ // we want this function to work even if there is no wxApp so ensure that
+ // we have a valid traits pointer
+ wxConsoleAppTraits traitsConsole;
+ wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ if ( !traits )
+ traits = &traitsConsole;
+
+ // this struct contains all information which we pass to and from
+ // wxAppTraits methods
+ wxExecuteData execData;
+ execData.flags = flags;
+ execData.process = process;
+
// create pipes
- int end_proc_detect[2];
- if ( pipe(end_proc_detect) == -1 )
+ if ( !traits->CreateEndProcessPipe(execData) )
{
- wxLogSysError( _("Pipe creation failed") );
wxLogError( _("Failed to execute '%s'\n"), *argv );
ARGS_CLEANUP;
return ERROR_RETURN_CODE;
}
-#endif // wxUSE_GUI
// pipes for inter process communication
- int pipeIn[2], // stdin
- pipeOut[2], // stdout
- pipeErr[2]; // stderr
-
- pipeIn[0] = pipeIn[1] =
- pipeOut[0] = pipeOut[1] =
- pipeErr[0] = pipeErr[1] = -1;
+ wxPipe pipeIn, // stdin
+ pipeOut, // stdout
+ pipeErr; // stderr
if ( process && process->IsRedirected() )
{
- if ( pipe(pipeIn) == -1 || pipe(pipeOut) == -1 || pipe(pipeErr) == -1 )
+ if ( !pipeIn.Create() || !pipeOut.Create() || !pipeErr.Create() )
{
-#if wxUSE_GUI
- // free previously allocated resources
- close(end_proc_detect[0]);
- close(end_proc_detect[1]);
-#endif // wxUSE_GUI
-
- wxLogSysError( _("Pipe creation failed") );
wxLogError( _("Failed to execute '%s'\n"), *argv );
ARGS_CLEANUP;
}
// fork the process
-#ifdef HAVE_VFORK
- pid_t pid = vfork();
+ //
+ // NB: do *not* use vfork() here, it completely breaks this code for some
+ // reason under Solaris (and maybe others, although not under Linux)
+ // But on OpenVMS we do not have fork so we have to use vfork and
+ // cross our fingers that it works.
+#ifdef __VMS
+ pid_t pid = vfork();
#else
- pid_t pid = fork();
+ pid_t pid = fork();
#endif
-
- if ( pid == -1 ) // error?
+ if ( pid == -1 ) // error?
{
-#if wxUSE_GUI
- close(end_proc_detect[0]);
- close(end_proc_detect[1]);
- close(pipeIn[0]);
- close(pipeIn[1]);
- close(pipeOut[0]);
- close(pipeOut[1]);
- close(pipeErr[0]);
- close(pipeErr[1]);
-#endif // wxUSE_GUI
-
wxLogSysError( _("Fork failed") );
ARGS_CLEANUP;
}
else if ( pid == 0 ) // we're in child
{
-#if wxUSE_GUI
- close(end_proc_detect[0]); // close reading side
-#endif // wxUSE_GUI
-
// 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 ( !sync )
+ if ( !(flags & wxEXEC_SYNC) )
{
for ( int fd = 0; fd < FD_SETSIZE; fd++ )
{
- if ( fd == pipeIn[0] || fd == pipeOut[1] || fd == pipeErr[1]
-#if wxUSE_GUI
- || fd == end_proc_detect[1]
-#endif // wxUSE_GUI
- )
+ if ( fd == pipeIn[wxPipe::Read]
+ || fd == pipeOut[wxPipe::Write]
+ || fd == pipeErr[wxPipe::Write]
+ || traits->IsWriteFDOfEndProcessPipe(execData, fd) )
{
// don't close this one, we still need it
continue;
}
- // leave stderr opened too, it won't do any hurm
+ // leave stderr opened too, it won't do any harm
if ( fd != STDERR_FILENO )
close(fd);
}
}
- // redirect stdio, stdout and stderr
- if ( pipeIn[0] != -1 )
+#if !defined(__VMS) && !defined(__EMX__)
+ if ( flags & wxEXEC_MAKE_GROUP_LEADER )
+ {
+ // Set process group to child process' pid. Then killing -pid
+ // of the parent will kill the process and all of its children.
+ setsid();
+ }
+#endif // !__VMS
+
+ // reading side can be safely closed but we should keep the write one
+ // opened
+ traits->DetachWriteFDOfEndProcessPipe(execData);
+
+ // redirect stdin, stdout and stderr
+ if ( pipeIn.IsOk() )
{
- if ( dup2(pipeIn[0], STDIN_FILENO) == -1 ||
- dup2(pipeOut[1], STDOUT_FILENO) == -1 ||
- dup2(pipeErr[1], STDERR_FILENO) == -1 )
+ if ( dup2(pipeIn[wxPipe::Read], STDIN_FILENO) == -1 ||
+ dup2(pipeOut[wxPipe::Write], STDOUT_FILENO) == -1 ||
+ dup2(pipeErr[wxPipe::Write], STDERR_FILENO) == -1 )
{
wxLogSysError(_("Failed to redirect child process input/output"));
}
- close(pipeIn[0]);
- close(pipeOut[1]);
- close(pipeErr[1]);
+ pipeIn.Close();
+ pipeOut.Close();
+ pipeErr.Close();
}
execvp (*mb_argv, mb_argv);
+ fprintf(stderr, "execvp(");
+ // CS changed ppc to ppc_ as ppc is not available under mac os CW Mach-O
+ for ( char **ppc_ = mb_argv; *ppc_; ppc_++ )
+ fprintf(stderr, "%s%s", ppc_ == mb_argv ? "" : ", ", *ppc_);
+ fprintf(stderr, ") failed with error %d!\n", errno);
+
// there is no return after successful exec()
_exit(-1);
+
+ // some compilers complain about missing return - of course, they
+ // should know that exit() doesn't return but what else can we do if
+ // they don't?
+ //
+ // and, sure enough, other compilers complain about unreachable code
+ // after exit() call, so we can just always have return here...
+#if defined(__VMS) || defined(__INTEL_COMPILER)
+ return 0;
+#endif
}
else // we're in parent
{
ARGS_CLEANUP;
- // pipe initialization: construction of the wxStreams
- if ( process && process->IsRedirected() )
- {
-#if wxUSE_STREAMS
- // These two streams are relative to this process.
- wxOutputStream *outStream = new wxProcessFileOutputStream(pipeIn[1]);
- wxInputStream *inStream = new wxProcessFileInputStream(pipeOut[0]);
- wxInputStream *errStream = new wxProcessFileInputStream(pipeErr[0]);
-
- process->SetPipeStreams(inStream, outStream, errStream);
-#endif // wxUSE_STREAMS
+ // save it for WaitForChild() use
+ execData.pid = pid;
- close(pipeIn[0]); // close reading side
- close(pipeOut[1]); // close writing side
- close(pipeErr[1]); // close writing side
- }
+ // prepare for IO redirection
-#if wxUSE_GUI && !defined(__WXMICROWIN__)
- wxEndProcessData *data = new wxEndProcessData;
+#if wxUSE_STREAMS
+ // the input buffer bufOut is connected to stdout, this is why it is
+ // called bufOut and not bufIn
+ wxStreamTempInputBuffer bufOut,
+ bufErr;
+#endif // wxUSE_STREAMS
- if ( sync )
+ if ( process && process->IsRedirected() )
{
- // we may have process for capturing the program output, but it's
- // not used in wxEndProcessData in the case of sync execution
- data->process = NULL;
-
- // sync execution: indicate it by negating the pid
- data->pid = -pid;
- data->tag = wxAddProcessCallback(data, end_proc_detect[0]);
-
- close(end_proc_detect[1]); // close writing side
-
- wxBusyCursor bc;
- wxWindowDisabler wd;
-
- // it will be set to 0 from GTK_EndProcessDetector
- while (data->pid != 0)
- wxYield();
+#if wxUSE_STREAMS
+ wxOutputStream *inStream =
+ new wxFileOutputStream(pipeIn.Detach(wxPipe::Write));
- int exitcode = data->exitcode;
+ wxPipeInputStream *outStream =
+ new wxPipeInputStream(pipeOut.Detach(wxPipe::Read));
- delete data;
+ wxPipeInputStream *errStream =
+ new wxPipeInputStream(pipeErr.Detach(wxPipe::Read));
- return exitcode;
- }
- else // async execution
- {
- // async execution, nothing special to do - caller will be
- // notified about the process termination if process != NULL, data
- // will be deleted in GTK_EndProcessDetector
- data->process = process;
- data->pid = pid;
- data->tag = wxAddProcessCallback(data, end_proc_detect[0]);
+ process->SetPipeStreams(outStream, inStream, errStream);
- close(end_proc_detect[1]); // close writing side
+ bufOut.Init(outStream);
+ bufErr.Init(errStream);
- return pid;
+ execData.bufOut = &bufOut;
+ execData.bufErr = &bufErr;
+#endif // wxUSE_STREAMS
}
-#else // !wxUSE_GUI
- wxASSERT_MSG( sync, wxT("async execution not supported yet") );
- int exitcode = 0;
- if ( waitpid(pid, &exitcode, 0) == -1 || !WIFEXITED(exitcode) )
+ if ( pipeIn.IsOk() )
{
- wxLogSysError(_("Waiting for subprocess termination failed"));
+ pipeIn.Close();
+ pipeOut.Close();
+ pipeErr.Close();
}
- return exitcode;
-#endif // wxUSE_GUI
+ return traits->WaitForChild(execData);
}
+
+ return ERROR_RETURN_CODE;
+}
+
#ifdef __VMS
- // VMS does not recognise exit as a return and complains about
- // a missing return
- // I think VMS is wrong in this
- // JJ
- return 0;
+ #pragma message enable codeunreachable
#endif
-}
#undef ERROR_RETURN_CODE
#undef ARGS_CLEANUP
const wxChar* wxGetHomeDir( wxString *home )
{
*home = wxGetUserHome( wxString() );
- wxString tmp;
+ wxString tmp;
if ( home->IsEmpty() )
*home = wxT("/");
#ifdef __VMS
- tmp = *home;
- if ( tmp.Last() != wxT(']'))
- if ( tmp.Last() != wxT('/')) *home << wxT('/');
+ tmp = *home;
+ if ( tmp.Last() != wxT(']'))
+ if ( tmp.Last() != wxT('/')) *home << wxT('/');
#endif
return home->c_str();
}
if ((ptr = wxGetenv(wxT("HOME"))) != NULL)
{
+#if wxUSE_UNICODE
+ wxWCharBuffer buffer( ptr );
+ return buffer;
+#else
return ptr;
+#endif
}
if ((ptr = wxGetenv(wxT("USER"))) != NULL || (ptr = wxGetenv(wxT("LOGNAME"))) != NULL)
{
return FALSE;
}
+// this function is in mac/utils.cpp for wxMac
+#ifndef __WXMAC__
+
wxString wxGetOsDescription()
{
#ifndef WXWIN_OS_DESCRIPTION
#error WXWIN_OS_DESCRIPTION should be defined in config.h by configure
#else
- return WXWIN_OS_DESCRIPTION;
+ return wxString::FromAscii( WXWIN_OS_DESCRIPTION );
#endif
}
-// this function returns the GUI toolkit version in GUI programs, but OS
-// version in non-GUI ones
-#if !wxUSE_GUI
+#endif // !__WXMAC__
-int wxGetOsVersion(int *majorVsn, int *minorVsn)
+unsigned long wxGetProcessId()
{
- int major, minor;
- char name[256];
-
- if ( sscanf(WXWIN_OS_DESCRIPTION, "%s %d.%d", name, &major, &minor) != 3 )
- {
- // unreckognized uname string format
- major = minor = -1;
- }
-
- if ( majorVsn )
- *majorVsn = major;
- if ( minorVsn )
- *minorVsn = minor;
-
- return wxUNIX;
+ return (unsigned long)getpid();
}
-#endif // !wxUSE_GUI
-
long wxGetFreeMemory()
{
#if defined(__LINUX__)
bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
{
-#ifdef HAVE_STATFS
-
- struct statfs fs;
- if ( statfs(path, &fs) != 0 )
+#if defined(HAVE_STATFS) || defined(HAVE_STATVFS)
+ // the case to "char *" is needed for AIX 4.3
+ wxStatfs_t fs;
+ if ( wxStatfs((char *)(const char*)path.fn_str(), &fs) != 0 )
{
- wxLogSysError("Failed to get file system statistics");
+ wxLogSysError( wxT("Failed to get file system statistics") );
return FALSE;
}
+ // under Solaris we also have to use f_frsize field instead of f_bsize
+ // which is in general a multiple of f_frsize
+#ifdef HAVE_STATVFS
+ wxLongLong blockSize = fs.f_frsize;
+#else // HAVE_STATFS
+ wxLongLong blockSize = fs.f_bsize;
+#endif // HAVE_STATVFS/HAVE_STATFS
+
if ( pTotal )
{
- *pTotal = wxLongLong(fs.f_blocks) * fs.f_bsize;
+ *pTotal = wxLongLong(fs.f_blocks) * blockSize;
}
if ( pFree )
{
- *pFree = wxLongLong(fs.f_bavail) * fs.f_bsize;
+ *pFree = wxLongLong(fs.f_bavail) * blockSize;
}
return TRUE;
-#endif // HAVE_STATFS
-
+#else // !HAVE_STATFS && !HAVE_STATVFS
return FALSE;
+#endif // HAVE_STATFS
}
// ----------------------------------------------------------------------------
bool wxSetEnv(const wxString& variable, const wxChar *value)
{
#if defined(HAVE_SETENV)
- return setenv(variable.mb_str(), value ? wxString(value).mb_str().data()
- : NULL, 1 /* overwrite */) == 0;
+ return setenv(variable.mb_str(),
+ value ? (const char *)wxString(value).mb_str()
+ : NULL,
+ 1 /* overwrite */) == 0;
#elif defined(HAVE_PUTENV)
wxString s = variable;
if ( value )
#include <signal.h>
-static void wxFatalSignalHandler(wxTYPE_SA_HANDLER)
+extern "C" void wxFatalSignalHandler(wxTYPE_SA_HANDLER)
{
if ( wxTheApp )
{
// error and debug output routines (deprecated, use wxLog)
// ----------------------------------------------------------------------------
+#if WXWIN_COMPATIBILITY_2_2
+
void wxDebugMsg( const char *format, ... )
{
va_list ap;
exit(3); // the same exit code as for abort()
}
+#endif // WXWIN_COMPATIBILITY_2_2
+
+#endif // wxUSE_BASE
+
+#if wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// wxExecute support
+// ----------------------------------------------------------------------------
+
+// Darwin doesn't use the same process end detection mechanisms so we don't
+// need wxExecute-related helpers for it
+#if !(defined(__DARWIN__) && defined(__WXMAC__))
+
+bool wxGUIAppTraits::CreateEndProcessPipe(wxExecuteData& execData)
+{
+ return execData.pipeEndProcDetect.Create();
+}
+
+bool wxGUIAppTraits::IsWriteFDOfEndProcessPipe(wxExecuteData& execData, int fd)
+{
+ return fd == (execData.pipeEndProcDetect)[wxPipe::Write];
+}
+
+void wxGUIAppTraits::DetachWriteFDOfEndProcessPipe(wxExecuteData& execData)
+{
+ execData.pipeEndProcDetect.Detach(wxPipe::Write);
+ execData.pipeEndProcDetect.Close();
+}
+
+#else // !Darwin
+
+bool wxGUIAppTraits::CreateEndProcessPipe(wxExecuteData& WXUNUSED(execData))
+{
+ return true;
+}
+
+bool
+wxGUIAppTraits::IsWriteFDOfEndProcessPipe(wxExecuteData& WXUNUSED(execData),
+ int WXUNUSED(fd))
+{
+ return false;
+}
+
+void
+wxGUIAppTraits::DetachWriteFDOfEndProcessPipe(wxExecuteData& WXUNUSED(execData))
+{
+ // nothing to do here, we don't use the pipe
+}
+
+#endif // !Darwin/Darwin
+
+int wxGUIAppTraits::WaitForChild(wxExecuteData& execData)
+{
+ wxEndProcessData *endProcData = new wxEndProcessData;
+
+ // wxAddProcessCallback is now (with DARWIN) allowed to call the
+ // callback function directly if the process terminates before
+ // the callback can be added to the run loop. Set up the endProcData.
+ if ( execData.flags & wxEXEC_SYNC )
+ {
+ // we may have process for capturing the program output, but it's
+ // not used in wxEndProcessData in the case of sync execution
+ endProcData->process = NULL;
+
+ // sync execution: indicate it by negating the pid
+ endProcData->pid = -execData.pid;
+ }
+ else
+ {
+ // async execution, nothing special to do -- caller will be
+ // notified about the process termination if process != NULL, endProcData
+ // will be deleted in GTK_EndProcessDetector
+ endProcData->process = execData.process;
+ endProcData->pid = execData.pid;
+ }
+
+
+#if defined(__DARWIN__) && defined(__WXMAC__)
+ endProcData->tag = wxAddProcessCallbackForPid(endProcData, execData.pid);
+#else
+ endProcData->tag = wxAddProcessCallback
+ (
+ endProcData,
+ execData.pipeEndProcDetect.Detach(wxPipe::Read)
+ );
+
+ execData.pipeEndProcDetect.Close();
+#endif // defined(__DARWIN__) && defined(__WXMAC__)
+
+ if ( execData.flags & wxEXEC_SYNC )
+ {
+ wxBusyCursor bc;
+ wxWindowDisabler wd;
+
+ // endProcData->pid will be set to 0 from GTK_EndProcessDetector when the
+ // process terminates
+ while ( endProcData->pid != 0 )
+ {
+#if wxUSE_STREAMS
+ if ( execData.bufOut )
+ execData.bufOut->Update();
+
+ if ( execData.bufErr )
+ execData.bufErr->Update();
+#endif // wxUSE_STREAMS
+
+ // give GTK+ a chance to call GTK_EndProcessDetector here and
+ // also repaint the GUI
+ wxYield();
+ }
+
+ int exitcode = endProcData->exitcode;
+
+ delete endProcData;
+
+ return exitcode;
+ }
+ else // async execution
+ {
+ return execData.pid;
+ }
+}
+
+void wxHandleProcessTermination(wxEndProcessData *proc_data)
+{
+ // notify user about termination if required
+ if ( proc_data->process )
+ {
+ proc_data->process->OnTerminate(proc_data->pid, proc_data->exitcode);
+ }
+
+ // clean up
+ if ( proc_data->pid > 0 )
+ {
+ delete proc_data;
+ }
+ else
+ {
+ // let wxExecute() know that the process has terminated
+ proc_data->pid = 0;
+ }
+}
+
+#endif // wxUSE_GUI
+
projects / wxWidgets.git / blobdiff