X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ef5f8ab62657cd12c9c4be5e24dd45f3cd464ab9..1c16e6df8e49ea69a4b123e5c4de96e97aa1dce6:/src/unix/utilsunx.cpp diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp index 53f09c4b84..bbaea579b4 100644 --- a/src/unix/utilsunx.cpp +++ b/src/unix/utilsunx.cpp @@ -15,12 +15,18 @@ // headers // ---------------------------------------------------------------------------- +#include + +// for compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + #include "wx/defs.h" #include "wx/string.h" #include "wx/intl.h" #include "wx/log.h" #include "wx/app.h" +#include "wx/apptrait.h" #include "wx/utils.h" #include "wx/process.h" @@ -28,29 +34,63 @@ #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__) + #ifndef WXWIN_OS_DESCRIPTION + #define WXWIN_OS_DESCRIPTION "MacOS X" + #endif + #ifndef HAVE_NANOSLEEP + #define HAVE_NANOSLEEP + #endif + #ifndef HAVE_UNAME + #define HAVE_UNAME + #endif + + // our configure test believes we can use sigaction() if the function is + // available but Metrowekrs with MSL run-time does have the function but + // doesn't have sigaction struct so finally we can't use it... + #ifdef __MSL__ + #undef wxUSE_ON_FATAL_EXCEPTION + #define wxUSE_ON_FATAL_EXCEPTION 0 + #endif +#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 -# ifdef __BSD__ -# include -# include -# else -# include -# endif + #ifdef __BSD__ + #include + #include + #else // !__BSD__ + #include + #endif // __BSD__/!__BSD__ + + #define wxStatfs statfs #endif // HAVE_STATFS -// not only the statfs syscall is called differently depending on platform, but -// we also can't use "struct statvfs" under Solaris because it breaks down if -// HAVE_LARGEFILE_SUPPORT == 1 and we must use statvfs_t instead #ifdef HAVE_STATVFS #include - #define statfs statvfs - #define wxStatFs statvfs_t -#elif HAVE_STATFS - #define wxStatFs struct statfs -#endif // HAVE_STAT[V]FS + #define wxStatfs statvfs +#endif // HAVE_STATVFS -#if wxUSE_GUI - #include "wx/unix/execute.h" +#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 @@ -64,9 +104,8 @@ #include #include #include -#include #include -#include +#include #include #include #include @@ -87,9 +126,9 @@ // headers - please add your system here if it is the case for your OS. // SunOS < 5.6 (i.e. Solaris < 2.6) and DG-UX are like this. #if !defined(HAVE_USLEEP) && \ - (defined(__SUN__) && !defined(__SunOs_5_6) && \ + ((defined(__SUN__) && !defined(__SunOs_5_6) && \ !defined(__SunOs_5_7) && !defined(__SUNPRO_CC)) || \ - defined(__osf__) || defined(__EMX__) + defined(__osf__) || defined(__EMX__)) extern "C" { #ifdef __SUN__ @@ -125,12 +164,12 @@ void wxSleep(int nSecs) sleep(nSecs); } -void wxUsleep(unsigned long milliseconds) +void wxMicroSleep(unsigned long microseconds) { #if defined(HAVE_NANOSLEEP) timespec tmReq; - tmReq.tv_sec = (time_t)(milliseconds / 1000); - tmReq.tv_nsec = (milliseconds % 1000) * 1000 * 1000; + tmReq.tv_sec = (time_t)(microseconds / 1000000); + tmReq.tv_nsec = (microseconds % 1000000) * 1000; // we're not interested in remaining time nor in return value (void)nanosleep(&tmReq, (timespec *)NULL); @@ -143,22 +182,30 @@ void wxUsleep(unsigned long milliseconds) #error "usleep() cannot be used in MT programs under Solaris." #endif // Sun - usleep(milliseconds * 1000); // usleep(3) wants microseconds + usleep(microseconds); #elif defined(HAVE_SLEEP) // under BeOS sleep() takes seconds (what about other platforms, if any?) - sleep(milliseconds * 1000); + sleep(microseconds * 1000000); #else // !sleep function - #error "usleep() or nanosleep() function required for wxUsleep" + #error "usleep() or nanosleep() function required for wxMicroSleep" #endif // sleep function } +void wxMilliSleep(unsigned long milliseconds) +{ + wxMicroSleep(milliseconds*1000); +} + // ---------------------------------------------------------------------------- // process management // ---------------------------------------------------------------------------- -int wxKill(long pid, wxSignal sig, wxKillError *rc) +int wxKill(long pid, wxSignal sig, wxKillError *rc, int flags) { - int err = kill((pid_t)pid, (int)sig); + int err = kill((pid_t) (flags & wxKILL_CHILDREN) ? -pid : pid, (int)sig); + if ( !err ) + *rc = wxKILL_OK; + else if ( rc ) { switch ( errno ) @@ -197,12 +244,22 @@ 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; const wxChar *cptr = command.c_str(); wxChar quotechar = wxT('\0'); // is arg quoted? - bool escaped = FALSE; + bool escaped = false; // split the command line in arguments do @@ -221,14 +278,14 @@ long wxExecute( const wxString& command, int flags, wxProcess *process ) { if ( *cptr == wxT('\\') && ! escaped ) { - escaped = TRUE; + escaped = true; cptr++; continue; } // all other characters: argument += *cptr++; - escaped = FALSE; + escaped = false; // have we reached the end of the argument? if ( (*cptr == quotechar && ! escaped) @@ -253,11 +310,7 @@ long wxExecute( const wxString& command, int flags, wxProcess *process ) argv[argc] = NULL; // do execute the command -#if wxUSE_UNICODE - long lRc = -1; -#else long lRc = wxExecute(argv, flags, process); -#endif // clean up argc = 0; @@ -295,7 +348,7 @@ bool wxShell(const wxString& command) bool wxShell(const wxString& command, wxArrayString& output) { - wxCHECK_MSG( !!command, FALSE, _T("can't exec shell non interactively") ); + wxCHECK_MSG( !command.empty(), false, _T("can't exec shell non interactively") ); return wxExecute(wxMakeShellCommand(command), output); } @@ -316,63 +369,23 @@ bool wxShutdown(wxShutdownFlags wFlags) default: wxFAIL_MSG( _T("unknown wxShutdown() flag") ); - return FALSE; + return false; } return system(wxString::Format(_T("init %c"), level).mb_str()) == 0; } -#if wxUSE_GUI - -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 - // ---------------------------------------------------------------------------- // wxStream classes to support IO redirection in wxExecute // ---------------------------------------------------------------------------- #if wxUSE_STREAMS -// ---------------------------------------------------------------------------- -// wxPipeInputStream: stream for reading from a pipe -// ---------------------------------------------------------------------------- - -class wxPipeInputStream : public wxFileInputStream -{ -public: - wxPipeInputStream(int fd) : wxFileInputStream(fd) { } - - // return TRUE if the pipe is still opened - bool IsOpened() const { return !Eof(); } - - // return TRUE if we have anything to read, don't block - bool IsAvailable() const; -}; - -bool wxPipeInputStream::IsAvailable() const +bool wxPipeInputStream::CanRead() const { if ( m_lasterror == wxSTREAM_EOF ) - return FALSE; + return false; // check if there is any input available struct timeval tv; @@ -391,7 +404,7 @@ bool wxPipeInputStream::IsAvailable() const // fall through case 0: - return FALSE; + return false; default: wxFAIL_MSG(_T("unexpected select() return value")); @@ -405,89 +418,8 @@ bool wxPipeInputStream::IsAvailable() const } } -// 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 -// ---------------------------------------------------------------------------- -// wxPipe: this encapsulates pipe() system call -// ---------------------------------------------------------------------------- - -class wxPipe -{ -public: - // the symbolic names for the pipe ends - enum Direction - { - Read, - Write - }; - - enum - { - INVALID_FD = -1 - }; - - // default ctor doesn't do anything - wxPipe() { m_fds[Read] = m_fds[Write] = INVALID_FD; } - - // create the pipe, return TRUE if ok, FALSE on error - bool Create() - { - if ( pipe(m_fds) == -1 ) - { - wxLogSysError(_("Pipe creation failed")); - - return FALSE; - } - - return TRUE; - } - - // return TRUE if we were created successfully - bool IsOk() const { return m_fds[Read] != INVALID_FD; } - - // return the descriptor for one of the pipe ends - int operator[](Direction which) const - { - wxASSERT_MSG( which >= 0 && (size_t)which < WXSIZEOF(m_fds), - _T("invalid pipe index") ); - - return m_fds[which]; - } - - // detach a descriptor, meaning that the pipe dtor won't close it, and - // return it - int Detach(Direction which) - { - wxASSERT_MSG( which >= 0 && (size_t)which < WXSIZEOF(m_fds), - _T("invalid pipe index") ); - - int fd = m_fds[which]; - m_fds[which] = INVALID_FD; - - return fd; - } - - // close the pipe descriptors - void Close() - { - for ( size_t n = 0; n < WXSIZEOF(m_fds); n++ ) - { - if ( m_fds[n] != INVALID_FD ) - close(m_fds[n]); - } - } - - // dtor closes the pipe descriptors - ~wxPipe() { Close(); } - -private: - int m_fds[2]; -}; - // ---------------------------------------------------------------------------- // wxExecute: the real worker function // ---------------------------------------------------------------------------- @@ -532,10 +464,21 @@ long wxExecute(wxChar **argv, 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 - wxPipe pipeEndProcDetect; - if ( !pipeEndProcDetect.Create() ) + if ( !traits->CreateEndProcessPipe(execData) ) { wxLogError( _("Failed to execute '%s'\n"), *argv ); @@ -543,7 +486,6 @@ long wxExecute(wxChar **argv, return ERROR_RETURN_CODE; } -#endif // wxUSE_GUI // pipes for inter process communication wxPipe pipeIn, // stdin @@ -566,8 +508,14 @@ long wxExecute(wxChar **argv, // // NB: do *not* use vfork() here, it completely breaks this code for some // reason under Solaris (and maybe others, although not under Linux) - pid_t pid = fork(); - if ( pid == -1 ) // error? + // 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(); +#endif + if ( pid == -1 ) // error? { wxLogSysError( _("Fork failed") ); @@ -583,15 +531,14 @@ long wxExecute(wxChar **argv, // start an xterm executing it. if ( !(flags & wxEXEC_SYNC) ) { - for ( int fd = 0; fd < FD_SETSIZE; fd++ ) + // 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] -#if wxUSE_GUI - || fd == pipeEndProcDetect[wxPipe::Write] -#endif // wxUSE_GUI - ) + || traits->IsWriteFDOfEndProcessPipe(execData, fd) ) { // don't close this one, we still need it continue; @@ -612,12 +559,9 @@ long wxExecute(wxChar **argv, } #endif // !__VMS -#if wxUSE_GUI // reading side can be safely closed but we should keep the write one // opened - pipeEndProcDetect.Detach(wxPipe::Write); - pipeEndProcDetect.Close(); -#endif // wxUSE_GUI + traits->DetachWriteFDOfEndProcessPipe(execData); // redirect stdin, stdout and stderr if ( pipeIn.IsOk() ) @@ -636,6 +580,12 @@ long wxExecute(wxChar **argv, 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); @@ -653,6 +603,9 @@ long wxExecute(wxChar **argv, { ARGS_CLEANUP; + // save it for WaitForChild() use + execData.pid = pid; + // prepare for IO redirection #if wxUSE_STREAMS @@ -678,6 +631,9 @@ long wxExecute(wxChar **argv, bufOut.Init(outStream); bufErr.Init(errStream); + + execData.bufOut = &bufOut; + execData.bufErr = &bufErr; #endif // wxUSE_STREAMS } @@ -688,72 +644,7 @@ long wxExecute(wxChar **argv, pipeErr.Close(); } -#if wxUSE_GUI && !defined(__WXMICROWIN__) - wxEndProcessData *data = new wxEndProcessData; - - data->tag = wxAddProcessCallback - ( - data, - pipeEndProcDetect.Detach(wxPipe::Read) - ); - - pipeEndProcDetect.Close(); - - if ( 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 - data->process = NULL; - - // sync execution: indicate it by negating the pid - data->pid = -pid; - - wxBusyCursor bc; - wxWindowDisabler wd; - - // data->pid will be set to 0 from GTK_EndProcessDetector when the - // process terminates - while ( data->pid != 0 ) - { -#if wxUSE_STREAMS - bufOut.Update(); - bufErr.Update(); -#endif // wxUSE_STREAMS - - // give GTK+ a chance to call GTK_EndProcessDetector here and - // also repaint the GUI - wxYield(); - } - - int exitcode = data->exitcode; - - delete data; - - 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; - - return pid; - } -#else // !wxUSE_GUI - - wxASSERT_MSG( flags & wxEXEC_SYNC, - wxT("async execution not supported yet") ); - - int exitcode = 0; - if ( waitpid(pid, &exitcode, 0) == -1 || !WIFEXITED(exitcode) ) - { - wxLogSysError(_("Waiting for subprocess termination failed")); - } - - return exitcode; -#endif // wxUSE_GUI + return traits->WaitForChild(execData); } return ERROR_RETURN_CODE; @@ -798,7 +689,12 @@ char *wxGetUserHome( const wxString &user ) 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) { @@ -828,7 +724,7 @@ char *wxGetUserHome( const wxString &user ) // private use only) static bool wxGetHostNameInternal(wxChar *buf, int sz) { - wxCHECK_MSG( buf, FALSE, wxT("NULL pointer in wxGetHostNameInternal") ); + wxCHECK_MSG( buf, false, wxT("NULL pointer in wxGetHostNameInternal") ); *buf = wxT('\0'); @@ -846,7 +742,7 @@ static bool wxGetHostNameInternal(wxChar *buf, int sz) #else // no uname, no gethostname wxFAIL_MSG(wxT("don't know host name for this machine")); - bool ok = FALSE; + bool ok = false; #endif // uname/gethostname if ( !ok ) @@ -889,7 +785,7 @@ bool wxGetFullHostName(wxChar *buf, int sz) { wxLogSysError(_("Cannot get the official hostname")); - ok = FALSE; + ok = false; } else { @@ -911,10 +807,10 @@ bool wxGetUserId(wxChar *buf, int sz) if ((who = getpwuid(getuid ())) != NULL) { wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1); - return TRUE; + return true; } - return FALSE; + return false; } bool wxGetUserName(wxChar *buf, int sz) @@ -933,54 +829,41 @@ bool wxGetUserName(wxChar *buf, int sz) #else // !HAVE_PW_GECOS wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1); #endif // HAVE_PW_GECOS/!HAVE_PW_GECOS - return TRUE; + return true; } - return FALSE; + 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; -#endif -} -#endif - -// this function returns the GUI toolkit version in GUI programs, but OS -// version in non-GUI ones -#if !wxUSE_GUI -int wxGetOsVersion(int *majorVsn, int *minorVsn) +wxString wxGetOsDescription() { - int major, minor; - char name[256]; - - if ( sscanf(WXWIN_OS_DESCRIPTION, "%s %d.%d", name, &major, &minor) != 3 ) + FILE *f = popen("uname -s -r -m", "r"); + if (f) { - // unreckognized uname string format - major = minor = -1; + 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 ); } - - if ( majorVsn ) - *majorVsn = major; - if ( minorVsn ) - *minorVsn = minor; - - return wxUNIX; + wxFAIL_MSG( _T("uname failed") ); + return _T(""); } -#endif // !wxUSE_GUI +#endif // !__WXMAC__ unsigned long wxGetProcessId() { return (unsigned long)getpid(); } -long wxGetFreeMemory() +wxMemorySize wxGetFreeMemory() { #if defined(__LINUX__) // get it from /proc/meminfo @@ -998,10 +881,10 @@ long wxGetFreeMemory() fclose(fp); - return memFree; + return (wxMemorySize)memFree; } #elif defined(__SUN__) && defined(_SC_AVPHYS_PAGES) - return sysconf(_SC_AVPHYS_PAGES)*sysconf(_SC_PAGESIZE); + return (wxMemorySize)(sysconf(_SC_AVPHYS_PAGES)*sysconf(_SC_PAGESIZE)); //#elif defined(__FREEBSD__) -- might use sysctl() to find it out, probably #endif @@ -1013,12 +896,12 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) { #if defined(HAVE_STATFS) || defined(HAVE_STATVFS) // the case to "char *" is needed for AIX 4.3 - wxStatFs fs; - if ( statfs((char *)(const char*)path.fn_str(), &fs) != 0 ) + wxStatfs_t fs; + if ( wxStatfs((char *)(const char*)path.fn_str(), &fs) != 0 ) { wxLogSysError( wxT("Failed to get file system statistics") ); - return FALSE; + return false; } // under Solaris we also have to use f_frsize field instead of f_bsize @@ -1039,9 +922,9 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) *pFree = wxLongLong(fs.f_bavail) * blockSize; } - return TRUE; + return true; #else // !HAVE_STATFS && !HAVE_STATVFS - return FALSE; + return false; #endif // HAVE_STATFS } @@ -1054,14 +937,14 @@ bool wxGetEnv(const wxString& var, wxString *value) // wxGetenv is defined as getenv() wxChar *p = wxGetenv(var); if ( !p ) - return FALSE; + return false; if ( value ) { *value = p; } - return TRUE; + return true; } bool wxSetEnv(const wxString& variable, const wxChar *value) @@ -1077,7 +960,7 @@ bool wxSetEnv(const wxString& variable, const wxChar *value) s << _T('=') << value; // transform to ANSI - const char *p = s.mb_str(); + const wxWX2MBbuf p = s.mb_str(); // the string will be free()d by libc char *buf = (char *)malloc(strlen(p) + 1); @@ -1085,7 +968,7 @@ bool wxSetEnv(const wxString& variable, const wxChar *value) return putenv(buf) == 0; #else // no way to set an env var - return FALSE; + return false; #endif } @@ -1111,13 +994,13 @@ extern "C" void wxFatalSignalHandler(wxTYPE_SA_HANDLER) bool wxHandleFatalExceptions(bool doit) { // old sig handlers - static bool s_savedHandlers = FALSE; + static bool s_savedHandlers = false; static struct sigaction s_handlerFPE, s_handlerILL, s_handlerBUS, s_handlerSEGV; - bool ok = TRUE; + bool ok = true; if ( doit && !s_savedHandlers ) { // install the signal handler @@ -1139,7 +1022,7 @@ bool wxHandleFatalExceptions(bool doit) wxLogDebug(_T("Failed to install our signal handler.")); } - s_savedHandlers = TRUE; + s_savedHandlers = true; } else if ( s_savedHandlers ) { @@ -1153,7 +1036,7 @@ bool wxHandleFatalExceptions(bool doit) wxLogDebug(_T("Failed to uninstall our signal handler.")); } - s_savedHandlers = FALSE; + s_savedHandlers = false; } //else: nothing to do @@ -1196,3 +1079,166 @@ void wxFatalError( const wxString &msg, const wxString &title ) #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; + + const int flags = execData.flags; + + // 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 ( 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__) || defined(__WXCOCOA__)) + endProcData->tag = wxAddProcessCallbackForPid(endProcData, execData.pid); +#else + endProcData->tag = wxAddProcessCallback + ( + endProcData, + execData.pipeEndProcDetect.Detach(wxPipe::Read) + ); + + execData.pipeEndProcDetect.Close(); +#endif // defined(__DARWIN__) && (defined(__WXMAC__) || defined(__WXCOCOA__)) + + if ( flags & wxEXEC_SYNC ) + { + wxBusyCursor bc; + wxWindowDisabler *wd = flags & wxEXEC_NODISABLE ? NULL + : new wxWindowDisabler; + + // endProcData->pid will be set to 0 from GTK_EndProcessDetector when the + // process terminates + while ( endProcData->pid != 0 ) + { + bool idle = true; + +#if wxUSE_STREAMS + if ( execData.bufOut ) + { + execData.bufOut->Update(); + idle = false; + } + + if ( execData.bufErr ) + { + execData.bufErr->Update(); + idle = false; + } +#endif // wxUSE_STREAMS + + // don't consume 100% of the CPU while we're sitting in this + // loop + if ( idle ) + wxMilliSleep(1); + + // give GTK+ a chance to call GTK_EndProcessDetector here and + // also repaint the GUI + wxYield(); + } + + int exitcode = endProcData->exitcode; + + delete wd; + delete endProcData; + + return exitcode; + } + else // async execution + { + return execData.pid; + } +} + +#endif // wxUSE_GUI +#if wxUSE_BASE + +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_BASE