/////////////////////////////////////////////////////////////////////////////
-// Name: utilsunx.cpp
+// Name: src/unix/utilsunx.cpp
// Purpose: generic Unix implementation of many wx functions
// Author: Vadim Zeitlin
// Id: $Id$
// headers
// ----------------------------------------------------------------------------
-#include "wx/defs.h"
-#include "wx/string.h"
-
-#include "wx/intl.h"
-#include "wx/log.h"
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#include "wx/utils.h"
+
+#define USE_PUTENV (!defined(HAVE_SETENV) && defined(HAVE_PUTENV))
+
+#ifndef WX_PRECOMP
+ #include "wx/string.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/app.h"
+ #include "wx/wxcrtvararg.h"
+ #if USE_PUTENV
+ #include "wx/module.h"
+ #include "wx/hashmap.h"
+ #endif
+#endif
+
+#include "wx/apptrait.h"
+
#include "wx/process.h"
+#include "wx/thread.h"
+
+#include "wx/wfstream.h"
#include "wx/unix/execute.h"
+#include "wx/unix/private.h"
+
+#include <pwd.h>
+#include <sys/wait.h> // waitpid()
+
+#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 // HAS_PIPE_INPUT_STREAM
+
+#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 <sys/param.h>
+ #include <sys/mount.h>
+ #else // !__BSD__
+ #include <sys/vfs.h>
+ #endif // __BSD__/!__BSD__
+
+ #define wxStatfs statfs
+
+ #ifndef HAVE_STATFS_DECL
+ // some systems lack statfs() prototype in the system headers (AIX 4)
+ extern "C" int statfs(const char *path, struct statfs *buf);
+ #endif
+#endif // HAVE_STATFS
+
+#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
+// whether _LANGUAGE_C_PLUS_PLUS is set or not - do set it
+#if defined(__SGI__) && !defined(_LANGUAGE_C_PLUS_PLUS)
+ #define _LANGUAGE_C_PLUS_PLUS 1
+#endif // SGI hack
#include <stdarg.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <unistd.h>
#include <sys/wait.h>
-#include <pwd.h>
+#include <unistd.h>
#include <errno.h>
#include <netdb.h>
#include <signal.h>
#include <fcntl.h> // for O_WRONLY and friends
#include <time.h> // nanosleep() and/or usleep()
#include <ctype.h> // isspace()
+#include <sys/time.h> // needed for FD_SETSIZE
-// JACS: needed for FD_SETSIZE
-#include <sys/time.h>
-
-#if HAVE_UNAME
+#ifdef HAVE_UNAME
#include <sys/utsname.h> // for uname()
#endif // HAVE_UNAME
+// Used by wxGetFreeMemory().
+#ifdef __SGI__
+ #include <sys/sysmp.h>
+ #include <sys/sysinfo.h> // for SAGET and MINFO structures
+#endif
+
// ----------------------------------------------------------------------------
// conditional compilation
// ----------------------------------------------------------------------------
// 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(__osf__) || defined(__EMX__))
extern "C"
{
- #ifdef __SUN__
+ #ifdef __EMX__
+ /* I copied this from the XFree86 diffs. AV. */
+ #define INCL_DOSPROCESS
+ #include <os2.h>
+ inline void usleep(unsigned long delay)
+ {
+ DosSleep(delay ? (delay/1000l) : 1l);
+ }
+ #else // Unix
int usleep(unsigned int usec);
- #else // !Sun
- void usleep(unsigned long usec);
- #endif // Sun/!Sun
+ #endif // __EMX__/Unix
};
-#endif // Unices without usleep()
-#ifdef __EMX__
- /* I copied this from the XFree86 diffs. AV. */
-extern void DosSleep(unsigned long);
-#define INCL_DOSPROCESS
-#include <os2.h>
-void usleep(unsigned long delay)
-{
- DosSleep(delay ? (delay/1000l) : 1l);
-}
-#endif
+ #define HAVE_USLEEP 1
+#endif // Unices without usleep()
// ============================================================================
// implementation
sleep(nSecs);
}
-void wxUsleep(unsigned long milliseconds)
+void wxMicroSleep(unsigned long microseconds)
{
-#if HAVE_NANOSLEEP
+#if defined(HAVE_NANOSLEEP)
timespec tmReq;
- tmReq.tv_sec = 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);
-#elif HAVE_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()
// is known to lead to crashes in MT programs in Solaris 2.[67] and is not
#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(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)
+int wxKill(long pid, wxSignal sig, wxKillError *rc, int flags)
{
- return kill(pid, (int)sig);
+ int err = kill((pid_t) (flags & wxKILL_CHILDREN) ? -pid : pid, (int)sig);
+ if ( rc )
+ {
+ switch ( err ? errno : 0 )
+ {
+ case 0:
+ *rc = wxKILL_OK;
+ break;
+
+ case EINVAL:
+ *rc = wxKILL_BAD_SIGNAL;
+ break;
+
+ case EPERM:
+ *rc = wxKILL_ACCESS_DENIED;
+ break;
+
+ case ESRCH:
+ *rc = wxKILL_NO_PROCESS;
+ break;
+
+ default:
+ // this goes against Unix98 docs so log it
+ wxLogDebug(_T("unexpected kill(2) return value %d"), err);
+
+ // something else...
+ *rc = wxKILL_ERROR;
+ }
+ }
+
+ return err;
}
#define WXEXECUTE_NARGS 127
-long wxExecute( const wxString& command, bool sync, wxProcess *process )
+#if defined(__DARWIN__)
+long wxMacExecute(wxChar **argv,
+ int flags,
+ wxProcess *process);
+#endif
+
+long wxExecute( const wxString& command, int flags, wxProcess *process )
{
- wxCHECK_MSG( !command.IsEmpty(), 0, _T("can't exec empty command") );
+ wxCHECK_MSG( !command.empty(), 0, wxT("can't exec empty command") );
+
+ wxLogTrace(wxT("exec"), wxT("Executing \"%s\""), command.c_str());
+
+#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 = _T('\0'); // is arg quoted?
- bool escaped = FALSE;
+ wxChar quotechar = wxT('\0'); // is arg quoted?
+ bool escaped = false;
// split the command line in arguments
do
{
- argument=_T("");
- quotechar = _T('\0');
+ argument = wxEmptyString;
+ quotechar = wxT('\0');
// eat leading whitespace:
while ( wxIsspace(*cptr) )
cptr++;
- if ( *cptr == _T('\'') || *cptr == _T('"') )
+ if ( *cptr == wxT('\'') || *cptr == wxT('"') )
quotechar = *cptr++;
do
{
- if ( *cptr == _T('\\') && ! escaped )
+ 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)
- || (quotechar == _T('\0') && wxIsspace(*cptr))
- || *cptr == _T('\0') )
+ || (quotechar == wxT('\0') && wxIsspace(*cptr))
+ || *cptr == wxT('\0') )
{
wxASSERT_MSG( argc < WXEXECUTE_NARGS,
- _T("too many arguments in wxExecute") );
+ wxT("too many arguments in wxExecute") );
argv[argc] = new wxChar[argument.length() + 1];
wxStrcpy(argv[argc], argument.c_str());
} while(*cptr);
argv[argc] = NULL;
+ long lRc;
+#if defined(__DARWIN__)
+ // wxMacExecute only executes app bundles.
+ // It returns an error code if the target is not an app bundle, thus falling
+ // through to the regular wxExecute for non app bundles.
+ lRc = wxMacExecute(argv, flags, process);
+ if( lRc != ((flags & wxEXEC_SYNC) ? -1 : 0))
+ return lRc;
+#endif
+
// do execute the command
- long lRc = wxExecute(argv, sync, process);
+ lRc = wxExecute(argv, flags, process);
// clean up
argc = 0;
return lRc;
}
-bool wxShell(const wxString& command)
+// ----------------------------------------------------------------------------
+// wxShell
+// ----------------------------------------------------------------------------
+
+static wxString wxMakeShellCommand(const wxString& command)
{
wxString cmd;
- if ( !!command )
- cmd.Printf(_T("xterm -e %s"), command.c_str());
+ if ( !command )
+ {
+ // just an interactive shell
+ cmd = _T("xterm");
+ }
else
- cmd = command;
+ {
+ // execute command in a shell
+ cmd << _T("/bin/sh -c '") << command << _T('\'');
+ }
- return wxExecute(cmd) != 0;
+ return cmd;
}
-void wxHandleProcessTermination(wxEndProcessData *proc_data)
+bool wxShell(const wxString& command)
{
- int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
+ return wxExecute(wxMakeShellCommand(command), wxEXEC_SYNC) == 0;
+}
- // 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;
- if ( waitpid(pid, &status, 0) == -1 || !WIFEXITED(status) )
- {
- wxLogSysError(_("Waiting for subprocess termination failed"));
- }
- else
- {
- // notify user about termination if required
- if (proc_data->process)
- {
- proc_data->process->OnTerminate(proc_data->pid,
- WEXITSTATUS(status));
- }
- }
+bool wxShell(const wxString& command, wxArrayString& output)
+{
+ wxCHECK_MSG( !command.empty(), false, _T("can't exec shell non interactively") );
- // clean up
- if ( proc_data->pid > 0 )
+ return wxExecute(wxMakeShellCommand(command), output);
+}
+
+// Shutdown or reboot the PC
+bool wxShutdown(wxShutdownFlags wFlags)
+{
+ wxChar level;
+ switch ( wFlags )
{
- delete proc_data;
+ case wxSHUTDOWN_POWEROFF:
+ level = _T('0');
+ break;
+
+ case wxSHUTDOWN_REBOOT:
+ level = _T('6');
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unknown wxShutdown() flag") );
+ return false;
}
- else
- {
- // wxExecute() will know about it
- proc_data->exitcode = status;
- proc_data->pid = 0;
+ return system(wxString::Format(_T("init %c"), level).mb_str()) == 0;
+}
+
+// ----------------------------------------------------------------------------
+// wxStream classes to support IO redirection in wxExecute
+// ----------------------------------------------------------------------------
+
+#if HAS_PIPE_INPUT_STREAM
+
+bool wxPipeInputStream::CanRead() const
+{
+ if ( m_lasterror == wxSTREAM_EOF )
+ 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;
+
+ wxFD_ZERO(&readfds);
+ wxFD_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 false;
+
+ default:
+ wxFAIL_MSG(_T("unexpected select() return value"));
+ // still fall through
+
+ case 1:
+ // 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();
}
}
-long wxExecute( wxChar **argv, bool sync, wxProcess *process )
+#endif // HAS_PIPE_INPUT_STREAM
+
+// ----------------------------------------------------------------------------
+// wxExecute: the real worker function
+// ----------------------------------------------------------------------------
+
+long wxExecute(wxChar **argv, int flags, wxProcess *process)
{
- wxCHECK_MSG( *argv, 0, _T("can't exec empty command") );
+ // for the sync execution, we return -1 to indicate failure, but for async
+ // case we return 0 which is never a valid PID
+ //
+ // 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 ((flags & wxEXEC_SYNC) ? -1 : 0)
+
+ wxCHECK_MSG( *argv, ERROR_RETURN_CODE, wxT("can't exec empty command") );
- int end_proc_detect[2];
#if wxUSE_UNICODE
int mb_argc = 0;
char *mb_argv[WXEXECUTE_NARGS];
- while (argv[mb_argc]) {
- wxWX2MBbuf mb_arg = wxConvCurrent->cWX2MB(argv[mb_argc]);
- mb_argv[mb_argc] = strdup(mb_arg);
- mb_argc++;
+ while (argv[mb_argc])
+ {
+ wxWX2MBbuf mb_arg = wxSafeConvertWX2MB(argv[mb_argc]);
+ mb_argv[mb_argc] = strdup(mb_arg);
+ mb_argc++;
}
mb_argv[mb_argc] = (char *) NULL;
-#else
+
+ // this macro will free memory we used above
+ #define ARGS_CLEANUP \
+ for ( mb_argc = 0; mb_argv[mb_argc]; mb_argc++ ) \
+ free(mb_argv[mb_argc])
+#else // ANSI
+ // no need for cleanup
+ #define ARGS_CLEANUP
+
wxChar **mb_argv = argv;
-#endif
+#endif // Unicode/ANSI
+
+ // 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
- if (pipe(end_proc_detect) == -1)
+ if ( !traits->CreateEndProcessPipe(execData) )
{
- wxLogSysError( _("Pipe creation failed") );
-#if wxUSE_UNICODE
- mb_argc = 0;
- while (mb_argv[mb_argc])
- free(mb_argv[mb_argc++]);
-#endif
- return 0;
+ wxLogError( _("Failed to execute '%s'\n"), *argv );
+
+ ARGS_CLEANUP;
+
+ return ERROR_RETURN_CODE;
+ }
+
+ // pipes for inter process communication
+ wxPipe pipeIn, // stdin
+ pipeOut, // stdout
+ pipeErr; // stderr
+
+ if ( process && process->IsRedirected() )
+ {
+ if ( !pipeIn.Create() || !pipeOut.Create() || !pipeErr.Create() )
+ {
+ wxLogError( _("Failed to execute '%s'\n"), *argv );
+
+ ARGS_CLEANUP;
+
+ return ERROR_RETURN_CODE;
+ }
}
// fork the process
-#if 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)
+ if ( pid == -1 ) // error?
{
wxLogSysError( _("Fork failed") );
-#if wxUSE_UNICODE
- mb_argc = 0;
- while (mb_argv[mb_argc])
- free(mb_argv[mb_argc++]);
-#endif
- return 0;
+
+ ARGS_CLEANUP;
+
+ return ERROR_RETURN_CODE;
}
- else if (pid == 0)
+ else if ( pid == 0 ) // we're in child
{
- // we're in child
- close(end_proc_detect[0]); // close reading side
-
- // These three lines close the open file descriptors to to avoid any
+ // 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 == 0)
+ // one wants proper IO for the subprocess, the right thing to do is to
+ // start an xterm executing it.
+ if ( !(flags & wxEXEC_SYNC) )
{
- // leave stderr opened, it won't do any hurm
- 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 != end_proc_detect[1] && fd != STDERR_FILENO )
+ 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 harm
+ if ( fd != STDERR_FILENO )
close(fd);
}
}
-#if 0
- close(STDERR_FILENO);
+#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
- // some programs complain about stderr not being open, so redirect
- // them:
- open("/dev/null", O_RDONLY); // stdin
- open("/dev/null", O_WRONLY); // stdout
- open("/dev/null", O_WRONLY); // stderr
-#endif
+ // 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[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"));
+ }
+
+ pipeIn.Close();
+ pipeOut.Close();
+ pipeErr.Close();
+ }
execvp (*mb_argv, mb_argv);
- // there is no return after successful exec()
- wxFprintf(stderr, _("Can't execute '%s'\n"), *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
+ else // we're in parent
{
- // we're in parent
- close(end_proc_detect[1]); // close writing side
+ ARGS_CLEANUP;
- wxEndProcessData *data = new wxEndProcessData;
- data->tag = wxAddProcessCallback(data, end_proc_detect[0]);
+ // save it for WaitForChild() use
+ execData.pid = pid;
-#if wxUSE_UNICODE
- mb_argc = 0;
- while (mb_argv[mb_argc])
- free(mb_argv[mb_argc++]);
-#endif
+ // prepare for IO redirection
+
+#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 // HAS_PIPE_INPUT_STREAM
- if ( sync )
+ if ( process && process->IsRedirected() )
{
- wxASSERT_MSG( !process, _T("wxProcess param ignored for sync exec") );
- data->process = NULL;
+#if HAS_PIPE_INPUT_STREAM
+ wxOutputStream *inStream =
+ new wxFileOutputStream(pipeIn.Detach(wxPipe::Write));
- // sync execution: indicate it by negating the pid
- data->pid = -pid;
+ wxPipeInputStream *outStream =
+ new wxPipeInputStream(pipeOut.Detach(wxPipe::Read));
- // it will be set to 0 from GTK_EndProcessDetector
- while (data->pid != 0)
- wxYield();
+ wxPipeInputStream *errStream =
+ new wxPipeInputStream(pipeErr.Detach(wxPipe::Read));
- int exitcode = data->exitcode;
+ process->SetPipeStreams(outStream, inStream, errStream);
- delete data;
+ bufOut.Init(outStream);
+ bufErr.Init(errStream);
- return exitcode;
+ execData.bufOut = &bufOut;
+ execData.bufErr = &bufErr;
+#endif // HAS_PIPE_INPUT_STREAM
}
- else
- {
- // async execution, nothing special to do - caller will be
- // notified about the process terminationif process != NULL, data
- // will be deleted in GTK_EndProcessDetector
- data->process = process;
- data->pid = pid;
- return pid;
+ if ( pipeIn.IsOk() )
+ {
+ pipeIn.Close();
+ pipeOut.Close();
+ pipeErr.Close();
}
+
+ return traits->WaitForChild(execData);
}
+
+#if !defined(__VMS) && !defined(__INTEL_COMPILER)
+ return ERROR_RETURN_CODE;
+#endif
}
+#undef ERROR_RETURN_CODE
+#undef ARGS_CLEANUP
+
// ----------------------------------------------------------------------------
// file and directory functions
// ----------------------------------------------------------------------------
const wxChar* wxGetHomeDir( wxString *home )
{
- *home = wxGetUserHome( wxString() );
- if ( home->IsEmpty() )
- *home = _T("/");
-
+ *home = wxGetUserHome();
+ wxString tmp;
+ if ( home->empty() )
+ *home = wxT("/");
+#ifdef __VMS
+ tmp = *home;
+ if ( tmp.Last() != wxT(']'))
+ if ( tmp.Last() != wxT('/')) *home << wxT('/');
+#endif
return home->c_str();
}
-#if wxUSE_UNICODE
-const wxMB2WXbuf wxGetUserHome( const wxString &user )
-#else // just for binary compatibility
-char *wxGetUserHome( const wxString &user )
-#endif
+wxString wxGetUserHome( const wxString &user )
{
struct passwd *who = (struct passwd *) NULL;
if ( !user )
{
- register wxChar *ptr;
+ wxChar *ptr;
- if ((ptr = wxGetenv(_T("HOME"))) != NULL)
+ if ((ptr = wxGetenv(wxT("HOME"))) != NULL)
{
return ptr;
}
- if ((ptr = wxGetenv(_T("USER"))) != NULL || (ptr = wxGetenv(_T("LOGNAME"))) != NULL)
+
+ if ((ptr = wxGetenv(wxT("USER"))) != NULL ||
+ (ptr = wxGetenv(wxT("LOGNAME"))) != NULL)
{
- who = getpwnam(wxConvCurrent->cWX2MB(ptr));
+ who = getpwnam(wxSafeConvertWX2MB(ptr));
}
- // We now make sure the the user exists!
- if (who == NULL)
+ // make sure the user exists!
+ if ( !who )
{
who = getpwuid(getuid());
}
who = getpwnam (user.mb_str());
}
-#if wxUSE_UNICODE
- return who ? wxConvCurrent->cMB2WX(who->pw_dir) : (wxMB2WXbuf)((wxChar*)NULL);
-#else
- return who ? who->pw_dir : ((char*)NULL);
-#endif
+ return wxSafeConvertMB2WX(who ? who->pw_dir : 0);
}
// ----------------------------------------------------------------------------
// 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)
static bool wxGetHostNameInternal(wxChar *buf, int sz)
{
- wxCHECK_MSG( buf, FALSE, _T("NULL pointer in wxGetHostNameInternal") );
+ wxCHECK_MSG( buf, false, wxT("NULL pointer in wxGetHostNameInternal") );
- *buf = _T('\0');
+ *buf = wxT('\0');
// we're using uname() which is POSIX instead of less standard sysinfo()
#if defined(HAVE_UNAME)
bool ok = uname(&uts) != -1;
if ( ok )
{
- wxStrncpy(buf, wxConvCurrent->cMB2WX(uts.nodename), sz - 1);
- buf[sz] = _T('\0');
+ wxStrncpy(buf, wxSafeConvertMB2WX(uts.nodename), sz - 1);
+ buf[sz] = wxT('\0');
}
#elif defined(HAVE_GETHOSTNAME)
- bool ok = gethostname(buf, sz) != -1;
+ char cbuf[sz];
+ bool ok = gethostname(cbuf, sz) != -1;
+ if ( ok )
+ {
+ wxStrncpy(buf, wxSafeConvertMB2WX(cbuf), sz - 1);
+ buf[sz] = wxT('\0');
+ }
#else // no uname, no gethostname
- wxFAIL_MSG(_T("don't know host name for this machine"));
+ wxFAIL_MSG(wxT("don't know host name for this machine"));
- bool ok = FALSE;
+ bool ok = false;
#endif // uname/gethostname
if ( !ok )
{
// BSD systems return the FQDN, we only want the hostname, so extract
// it (we consider that dots are domain separators)
- wxChar *dot = wxStrchr(buf, _T('.'));
+ wxChar *dot = wxStrchr(buf, wxT('.'));
if ( dot )
{
// nuke it
- *dot = _T('\0');
+ *dot = wxT('\0');
}
}
if ( ok )
{
- if ( !wxStrchr(buf, _T('.')) )
+ if ( !wxStrchr(buf, wxT('.')) )
{
- struct hostent *host = gethostbyname(wxConvCurrent->cWX2MB(buf));
+ struct hostent *host = gethostbyname(wxSafeConvertWX2MB(buf));
if ( !host )
{
wxLogSysError(_("Cannot get the official hostname"));
- ok = FALSE;
+ ok = false;
}
else
{
// the canonical name
- wxStrncpy(buf, wxConvCurrent->cMB2WX(host->h_name), sz);
+ wxStrncpy(buf, wxSafeConvertMB2WX(host->h_name), sz);
}
}
//else: it's already a FQDN (BSD behaves this way)
{
struct passwd *who;
- *buf = _T('\0');
+ *buf = wxT('\0');
if ((who = getpwuid(getuid ())) != NULL)
{
- wxStrncpy (buf, wxConvCurrent->cMB2WX(who->pw_name), sz - 1);
- return TRUE;
+ wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_name), sz - 1);
+ return true;
}
- return FALSE;
+ return false;
}
bool wxGetUserName(wxChar *buf, int sz)
{
+#ifdef HAVE_PW_GECOS
struct passwd *who;
- char *comma;
- *buf = _T('\0');
- if ((who = getpwuid (getuid ())) != NULL) {
- comma = strchr(who->pw_gecos, ',');
+ *buf = wxT('\0');
+ if ((who = getpwuid (getuid ())) != NULL)
+ {
+ char *comma = strchr(who->pw_gecos, ',');
if (comma)
*comma = '\0'; // cut off non-name comment fields
- wxStrncpy (buf, wxConvCurrent->cMB2WX(who->pw_gecos), sz - 1);
- return TRUE;
+ wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_gecos), sz - 1);
+ return true;
}
- return FALSE;
+ return false;
+#else // !HAVE_PW_GECOS
+ return wxGetUserId(buf, sz);
+#endif // HAVE_PW_GECOS/!HAVE_PW_GECOS
+}
+
+bool wxIsPlatform64Bit()
+{
+ const wxString machine = wxGetCommandOutput(wxT("uname -m"));
+
+ // the test for "64" is obviously not 100% reliable but seems to work fine
+ // in practice
+ return machine.Contains(wxT("64")) ||
+ machine.Contains(wxT("alpha"));
+}
+
+// these functions are in mac/utils.cpp for wxMac
+#ifndef __WXMAC__
+
+wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
+{
+ // get OS version
+ int major, minor;
+ wxString release = wxGetCommandOutput(wxT("uname -r"));
+ if ( release.empty() ||
+ wxSscanf(release.c_str(), wxT("%d.%d"), &major, &minor) != 2 )
+ {
+ // failed to get version string or unrecognized format
+ major =
+ minor = -1;
+ }
+
+ 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__
+
+unsigned long wxGetProcessId()
+{
+ return (unsigned long)getpid();
+}
+
+wxMemorySize wxGetFreeMemory()
+{
+#if defined(__LINUX__)
+ // get it from /proc/meminfo
+ FILE *fp = fopen("/proc/meminfo", "r");
+ if ( fp )
+ {
+ long memFree = -1;
+
+ char buf[1024];
+ if ( fgets(buf, WXSIZEOF(buf), fp) && fgets(buf, WXSIZEOF(buf), fp) )
+ {
+ // /proc/meminfo changed its format in kernel 2.6
+ if ( wxPlatformInfo().CheckOSVersion(2, 6) )
+ {
+ unsigned long cached, buffers;
+ sscanf(buf, "MemFree: %ld", &memFree);
+
+ fgets(buf, WXSIZEOF(buf), fp);
+ sscanf(buf, "Buffers: %lu", &buffers);
+
+ fgets(buf, WXSIZEOF(buf), fp);
+ sscanf(buf, "Cached: %lu", &cached);
+
+ // add to "MemFree" also the "Buffers" and "Cached" values as
+ // free(1) does as otherwise the value never makes sense: for
+ // kernel 2.6 it's always almost 0
+ memFree += buffers + cached;
+
+ // values here are always expressed in kB and we want bytes
+ memFree *= 1024;
+ }
+ else // Linux 2.4 (or < 2.6, anyhow)
+ {
+ long memTotal, memUsed;
+ sscanf(buf, "Mem: %ld %ld %ld", &memTotal, &memUsed, &memFree);
+ }
+ }
+
+ fclose(fp);
+
+ return (wxMemorySize)memFree;
+ }
+#elif defined(__SGI__)
+ struct rminfo realmem;
+ if ( sysmp(MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0 )
+ return ((wxMemorySize)realmem.physmem * sysconf(_SC_PAGESIZE));
+#elif defined(_SC_AVPHYS_PAGES)
+ return ((wxMemorySize)sysconf(_SC_AVPHYS_PAGES))*sysconf(_SC_PAGESIZE);
+//#elif defined(__FREEBSD__) -- might use sysctl() to find it out, probably
+#endif
+
+ // can't find it out
+ return -1;
+}
+
+bool wxGetDiskSpace(const wxString& path, wxDiskspaceSize_t *pTotal, wxDiskspaceSize_t *pFree)
+{
+#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( 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
+ wxDiskspaceSize_t blockSize = fs.f_frsize;
+#else // HAVE_STATFS
+ wxDiskspaceSize_t blockSize = fs.f_bsize;
+#endif // HAVE_STATVFS/HAVE_STATFS
+
+ if ( pTotal )
+ {
+ *pTotal = wxDiskspaceSize_t(fs.f_blocks) * blockSize;
+ }
+
+ if ( pFree )
+ {
+ *pFree = wxDiskspaceSize_t(fs.f_bavail) * blockSize;
+ }
+
+ return true;
+#else // !HAVE_STATFS && !HAVE_STATVFS
+ return false;
+#endif // HAVE_STATFS
}
// ----------------------------------------------------------------------------
-// error and debug output routines (deprecated, use wxLog)
+// env vars
// ----------------------------------------------------------------------------
-void wxDebugMsg( const char *format, ... )
+#if USE_PUTENV
+
+WX_DECLARE_STRING_HASH_MAP(char *, wxEnvVars);
+
+static wxEnvVars gs_envVars;
+
+class wxSetEnvModule : public wxModule
{
- va_list ap;
- va_start( ap, format );
- vfprintf( stderr, format, ap );
- fflush( stderr );
- va_end(ap);
+public:
+ virtual bool OnInit() { return true; }
+ virtual void OnExit()
+ {
+ for ( wxEnvVars::const_iterator i = gs_envVars.begin();
+ i != gs_envVars.end();
+ ++i )
+ {
+ free(i->second);
+ }
+
+ gs_envVars.clear();
+ }
+
+ DECLARE_DYNAMIC_CLASS(wxSetEnvModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxSetEnvModule, wxModule)
+
+#endif // USE_PUTENV
+
+bool wxGetEnv(const wxString& var, wxString *value)
+{
+ // wxGetenv is defined as getenv()
+ char *p = wxGetenv(var);
+ if ( !p )
+ return false;
+
+ if ( value )
+ {
+ *value = p;
+ }
+
+ return true;
}
-void wxError( const wxString &msg, const wxString &title )
+static bool wxDoSetEnv(const wxString& variable, const char *value)
{
- wxFprintf( stderr, _("Error ") );
- if (!title.IsNull()) wxFprintf( stderr, _T("%s "), WXSTRINGCAST(title) );
- if (!msg.IsNull()) wxFprintf( stderr, _T(": %s"), WXSTRINGCAST(msg) );
- wxFprintf( stderr, _T(".\n") );
+#if defined(HAVE_SETENV)
+ if ( !value )
+ {
+#ifdef HAVE_UNSETENV
+ // don't test unsetenv() return value: it's void on some systems (at
+ // least Darwin)
+ unsetenv(variable.mb_str());
+ return true;
+#else
+ value = ""; // we can't pass NULL to setenv()
+#endif
+ }
+
+ return setenv(variable.mb_str(), value, 1 /* overwrite */) == 0;
+#elif defined(HAVE_PUTENV)
+ wxString s = variable;
+ if ( value )
+ s << _T('=') << value;
+
+ // transform to ANSI
+ const wxWX2MBbuf p = s.mb_str();
+
+ char *buf = (char *)malloc(strlen(p) + 1);
+ strcpy(buf, p);
+
+ // store the string to free() it later
+ wxEnvVars::iterator i = gs_envVars.find(variable);
+ if ( i != gs_envVars.end() )
+ {
+ free(i->second);
+ i->second = buf;
+ }
+ else // this variable hadn't been set before
+ {
+ gs_envVars[variable] = buf;
+ }
+
+ return putenv(buf) == 0;
+#else // no way to set an env var
+ return false;
+#endif
}
-void wxFatalError( const wxString &msg, const wxString &title )
+bool wxSetEnv(const wxString& variable, const wxString& value)
{
- wxFprintf( stderr, _("Error ") );
- if (!title.IsNull()) wxFprintf( stderr, _T("%s "), WXSTRINGCAST(title) );
- if (!msg.IsNull()) wxFprintf( stderr, _T(": %s"), WXSTRINGCAST(msg) );
- wxFprintf( stderr, _T(".\n") );
- exit(3); // the same exit code as for abort()
+ return wxDoSetEnv(variable, value.mb_str());
}
+
+bool wxUnsetEnv(const wxString& variable)
+{
+ return wxDoSetEnv(variable, NULL);
+}
+
+// ----------------------------------------------------------------------------
+// signal handling
+// ----------------------------------------------------------------------------
+
+#if wxUSE_ON_FATAL_EXCEPTION
+
+#include <signal.h>
+
+extern "C" void wxFatalSignalHandler(wxTYPE_SA_HANDLER)
+{
+ if ( wxTheApp )
+ {
+ // give the user a chance to do something special about this
+ wxTheApp->OnFatalException();
+ }
+
+ abort();
+}
+
+bool wxHandleFatalExceptions(bool doit)
+{
+ // old sig handlers
+ static bool s_savedHandlers = false;
+ static struct sigaction s_handlerFPE,
+ s_handlerILL,
+ s_handlerBUS,
+ s_handlerSEGV;
+
+ bool ok = true;
+ if ( doit && !s_savedHandlers )
+ {
+ // install the signal handler
+ struct sigaction act;
+
+ // some systems extend it with non std fields, so zero everything
+ memset(&act, 0, sizeof(act));
+
+ act.sa_handler = wxFatalSignalHandler;
+ sigemptyset(&act.sa_mask);
+ act.sa_flags = 0;
+
+ ok &= sigaction(SIGFPE, &act, &s_handlerFPE) == 0;
+ ok &= sigaction(SIGILL, &act, &s_handlerILL) == 0;
+ ok &= sigaction(SIGBUS, &act, &s_handlerBUS) == 0;
+ ok &= sigaction(SIGSEGV, &act, &s_handlerSEGV) == 0;
+ if ( !ok )
+ {
+ wxLogDebug(_T("Failed to install our signal handler."));
+ }
+
+ s_savedHandlers = true;
+ }
+ else if ( s_savedHandlers )
+ {
+ // uninstall the signal handler
+ ok &= sigaction(SIGFPE, &s_handlerFPE, NULL) == 0;
+ ok &= sigaction(SIGILL, &s_handlerILL, NULL) == 0;
+ ok &= sigaction(SIGBUS, &s_handlerBUS, NULL) == 0;
+ ok &= sigaction(SIGSEGV, &s_handlerSEGV, NULL) == 0;
+ if ( !ok )
+ {
+ wxLogDebug(_T("Failed to uninstall our signal handler."));
+ }
+
+ s_savedHandlers = false;
+ }
+ //else: nothing to do
+
+ return ok;
+}
+
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+#endif // wxUSE_BASE
+
+#if wxUSE_GUI
+
+#ifdef __DARWIN__
+ #include <sys/errno.h>
+#endif
+// ----------------------------------------------------------------------------
+// wxExecute support
+// ----------------------------------------------------------------------------
+
+/*
+ NOTE: If this proves not to work well for wxMac then move back to the old
+ behavior. If, however, it proves to work just fine, nuke all of the code
+ for the old behavior. I strongly suggest backporting this to 2.8 as well.
+ However, beware that while you can nuke the old code here, you cannot
+ nuke the wxAddProcessCallbackForPid from the 2.8 branch (found in
+ utilsexc_cf since it's an exported symbol).
+ */
+// #define USE_OLD_DARWIN_END_PROCESS_DETECT (defined(__DARWIN__) && defined(__WXMAC__))
+#define USE_OLD_DARWIN_END_PROCESS_DETECT 0
+
+// wxMac/wxCocoa don't use the same process end detection mechanisms so we don't
+// need wxExecute-related helpers for them
+#if !USE_OLD_DARWIN_END_PROCESS_DETECT
+
+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 ( !(flags & wxEXEC_NOEVENTS) )
+ {
+#if USE_OLD_DARWIN_END_PROCESS_DETECT
+ endProcData->tag = wxAddProcessCallbackForPid(endProcData, execData.pid);
+#else
+ endProcData->tag = wxAddProcessCallback
+ (
+ endProcData,
+ execData.pipeEndProcDetect.Detach(wxPipe::Read)
+ );
+
+ execData.pipeEndProcDetect.Close();
+#endif // USE_OLD_DARWIN_END_PROCESS_DETECT
+ }
+
+ if ( flags & wxEXEC_SYNC )
+ {
+ wxBusyCursor bc;
+ int exitcode = 0;
+
+ wxWindowDisabler *wd = flags & (wxEXEC_NODISABLE | wxEXEC_NOEVENTS)
+ ? NULL
+ : new wxWindowDisabler;
+
+ if ( flags & wxEXEC_NOEVENTS )
+ {
+ // just block waiting for the child to exit
+ int status = 0;
+
+ int result = waitpid(execData.pid, &status, 0);
+#ifdef __DARWIN__
+ /* DE: waitpid manpage states that waitpid can fail with EINTR
+ if the call is interrupted by a caught signal. I suppose
+ that means that this ought to be a while loop.
+
+ The odd thing is that it seems to fail EVERY time. It fails
+ with a quickly exiting process (e.g. echo), and fails with a
+ slowly exiting process (e.g. sleep 2) but clearly after
+ having waited for the child to exit. Maybe it's a bug in
+ my particular version.
+
+ It works, however, from the CFSocket callback without this
+ trick but in that case it's used only after CFSocket calls
+ the callback and with the WNOHANG flag which would seem to
+ preclude it from being interrupted or at least make it much
+ less likely since it would not then be waiting.
+
+ If Darwin's man page is to be believed then this is definitely
+ necessary. It's just weird that I've never seen it before
+ and apparently no one else has either or you'd think they'd
+ have reported it by now. Perhaps blocking the GUI while
+ waiting for a child process to exit is simply not that common.
+ */
+ if(result == -1 && errno == EINTR)
+ {
+ result = waitpid(execData.pid, &status, 0);
+ }
+
+#endif
+
+ if ( result == -1 )
+ {
+ wxLogLastError(_T("waitpid"));
+ exitcode = -1;
+ }
+ else
+ {
+ wxASSERT_MSG( result == execData.pid,
+ _T("unexpected waitpid() return value") );
+
+ if ( WIFEXITED(status) )
+ {
+ exitcode = WEXITSTATUS(status);
+ }
+ else // abnormal termination?
+ {
+ wxASSERT_MSG( WIFSIGNALED(status),
+ _T("unexpected child wait status") );
+ exitcode = -1;
+ }
+ }
+ }
+ else // !wxEXEC_NOEVENTS
+ {
+ // endProcData->pid will be set to 0 from GTK_EndProcessDetector when the
+ // process terminates
+ while ( endProcData->pid != 0 )
+ {
+ bool idle = true;
+
+#if HAS_PIPE_INPUT_STREAM
+ if ( execData.bufOut )
+ {
+ execData.bufOut->Update();
+ idle = false;
+ }
+
+ if ( execData.bufErr )
+ {
+ execData.bufErr->Update();
+ idle = false;
+ }
+#endif // HAS_PIPE_INPUT_STREAM
+
+ // 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();
+ }
+
+ 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
projects / wxWidgets.git / blobdiff