#include "wx/utils.h"
#include "wx/process.h"
+#include "wx/thread.h"
-#include "wx/unix/execute.h"
+#include "wx/stream.h"
+
+#if wxUSE_GUI
+ #include "wx/unix/execute.h"
+#endif
#include <stdarg.h>
#include <dirent.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
#if !defined(HAVE_USLEEP) && \
(defined(__SUN__) && !defined(__SunOs_5_6) && \
!defined(__SunOs_5_7) && !defined(__SUNPRO_CC)) || \
- defined(__osf__)
+ defined(__osf__) || defined(__EMX__)
extern "C"
{
#ifdef __SUN__
int usleep(unsigned int usec);
#else // !Sun
- void usleep(unsigned long usec);
- #endif // Sun/!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 // !Sun && !EMX
+ void usleep(unsigned long usec);
+ #endif
+ #endif // Sun/EMX/Something else
};
+
+ #define HAVE_USLEEP 1
#endif // Unices without usleep()
// ============================================================================
void wxUsleep(unsigned long milliseconds)
{
-#if HAVE_NANOSLEEP
+#if defined(HAVE_NANOSLEEP)
timespec tmReq;
- tmReq.tv_sec = milliseconds / 1000;
+ tmReq.tv_sec = (time_t)(milliseconds / 1000);
tmReq.tv_nsec = (milliseconds % 1000) * 1000 * 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
#endif // Sun
usleep(milliseconds * 1000); // usleep(3) wants microseconds
+#elif defined(HAVE_SLEEP)
+ // under BeOS sleep() takes seconds (what about other platforms, if any?)
+ sleep(milliseconds * 1000);
#else // !sleep function
#error "usleep() or nanosleep() function required for wxUsleep"
#endif // sleep function
int wxKill(long pid, wxSignal sig)
{
- return kill(pid, (int)sig);
+ return kill((pid_t)pid, (int)sig);
}
#define WXEXECUTE_NARGS 127
long wxExecute( const wxString& command, bool sync, wxProcess *process )
{
- wxCHECK_MSG( !command.IsEmpty(), 0, _T("can't exec empty command") );
+ wxCHECK_MSG( !command.IsEmpty(), 0, wxT("can't exec empty command") );
int argc = 0;
wxChar *argv[WXEXECUTE_NARGS];
wxString argument;
const wxChar *cptr = command.c_str();
- wxChar quotechar = _T('\0'); // is arg quoted?
+ wxChar quotechar = wxT('\0'); // is arg quoted?
bool escaped = FALSE;
// split the command line in arguments
do
{
- argument=_T("");
- quotechar = _T('\0');
+ argument=wxT("");
+ 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;
cptr++;
// 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());
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 cmd;
+}
+
+bool wxShell(const wxString& command)
+{
+ return wxExecute(wxMakeShellCommand(command), TRUE /* sync */) == 0;
+}
+
+bool wxShell(const wxString& command, wxArrayString& output)
+{
+ wxCHECK_MSG( !!command, FALSE, _T("can't exec shell non interactively") );
- return wxExecute(cmd) != 0;
+ return wxExecute(wxMakeShellCommand(command), output);
}
+#if wxUSE_GUI
+
void wxHandleProcessTermination(wxEndProcessData *proc_data)
{
int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
// 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) )
+ int rc;
+
+ // wait for child termination and if waitpid() was interrupted, try again
+ do
+ {
+ rc = waitpid(pid, &status, 0);
+ }
+ while ( rc == -1 && errno == EINTR );
+
+
+ if( rc == -1 || ! (WIFEXITED(status) || WIFSIGNALED(status)) )
{
- wxLogSysError(_("Waiting for subprocess termination failed"));
+ wxLogSysError(_("Waiting for subprocess termination failed"));
+ /* 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
{
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;
+
+ proc_data->pid = 0;
+ }
}
+}
- // clean up
- if ( proc_data->pid > 0 )
+#endif // wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// wxStream classes to support IO redirection in wxExecute
+// ----------------------------------------------------------------------------
+
+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
+{
+ if ( m_lasterror == wxSTREAM_EOF )
+ return TRUE;
+
+ // check if there is any input available
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ fd_set readfds;
+ FD_ZERO(&readfds);
+ FD_SET(m_fd, &readfds);
+ switch ( select(m_fd + 1, &readfds, NULL, NULL, &tv) )
+ {
+ case -1:
+ wxLogSysError(_("Impossible to get child process input"));
+ // fall through
+
+ case 0:
+ return TRUE;
+
+ default:
+ wxFAIL_MSG(_T("unexpected select() return value"));
+ // still fall through
+
+ case 1:
+ // input available: check if there is any
+ return wxInputStream::Eof();
+ }
+}
+
+size_t wxProcessFileInputStream::OnSysRead(void *buffer, size_t bufsize)
+{
+ int ret = read(m_fd, buffer, bufsize);
+ if ( ret == 0 )
{
- delete proc_data;
+ m_lasterror = wxSTREAM_EOF;
+ }
+ else if ( ret == -1 )
+ {
+ m_lasterror = wxSTREAM_READ_ERROR;
+ ret = 0;
}
else
{
- // wxExecute() will know about it
- proc_data->exitcode = status;
+ m_lasterror = wxSTREAM_NOERROR;
+ }
- proc_data->pid = 0;
+ 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;
}
+
+ return ret;
}
-long wxExecute( wxChar **argv, bool sync, wxProcess *process )
+long wxExecute(wxChar **argv,
+ bool sync,
+ wxProcess *process)
{
- wxCHECK_MSG( *argv, 0, _T("can't exec empty command") );
+ wxCHECK_MSG( *argv, 0, 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 = wxConv_libc.cWX2MB(argv[mb_argc]);
- mb_argv[mb_argc] = strdup(mb_arg);
- mb_argc++;
+ while (argv[mb_argc])
+ {
+ wxWX2MBbuf mb_arg = wxConvertWX2MB(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
+#if wxUSE_GUI
// create pipes
- if (pipe(end_proc_detect) == -1)
+ int end_proc_detect[2];
+ if ( pipe(end_proc_detect) == -1 )
{
wxLogSysError( _("Pipe creation failed") );
+ wxLogError( _("Failed to execute '%s'\n"), *argv );
+
+ ARGS_CLEANUP;
+
return 0;
}
+#endif // wxUSE_GUI
+
+ int pipeIn[2];
+ int pipeOut[2];
+ pipeIn[0] = pipeIn[1] =
+ pipeOut[0] = pipeOut[1] = -1;
+
+ if ( process && process->IsRedirected() )
+ {
+ if ( pipe(pipeIn) == -1 || pipe(pipeOut) == -1 )
+ {
+#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;
+
+ return 0;
+ }
+ }
// fork the process
#ifdef HAVE_VFORK
#else
pid_t pid = fork();
#endif
- if (pid == -1)
+
+ 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]);
+#endif // wxUSE_GUI
+
wxLogSysError( _("Fork failed") );
+
+ ARGS_CLEANUP;
+
return 0;
}
- else if (pid == 0)
+ else if ( pid == 0 ) // we're in child
{
- // we're in child
+#if wxUSE_GUI
close(end_proc_detect[0]); // close reading side
+#endif // wxUSE_GUI
- // 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 ( !sync )
{
- // leave stderr opened, it won't do any hurm
for ( int fd = 0; fd < FD_SETSIZE; fd++ )
{
- if ( fd != end_proc_detect[1] && fd != STDERR_FILENO )
+ if ( fd == pipeIn[0] || fd == pipeOut[1]
+#if wxUSE_GUI
+ || fd == end_proc_detect[1]
+#endif // wxUSE_GUI
+ )
+ {
+ // don't close this one, we still need it
+ continue;
+ }
+
+ // leave stderr opened too, it won't do any hurm
+ if ( fd != STDERR_FILENO )
close(fd);
}
}
-#if 0
- close(STDERR_FILENO);
+ // redirect stdio and stdout
+ // (TODO: what about stderr?)
+ if ( pipeIn[0] != -1 )
+ {
+ if ( dup2(pipeIn[0], STDIN_FILENO) == -1 ||
+ dup2(pipeOut[1], STDOUT_FILENO) == -1 )
+ {
+ wxLogSysError(_("Failed to redirect child process "
+ "input/output"));
+ }
- // 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
+ close(pipeIn[0]);
+ close(pipeOut[1]);
+ }
execvp (*mb_argv, mb_argv);
// there is no return after successful exec()
- wxFprintf(stderr, _("Can't execute '%s'\n"), *argv);
-
_exit(-1);
}
- 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]);
+ // pipe initialization: construction of the wxStreams
+ if ( process && process->IsRedirected() )
+ {
+ // These two streams are relative to this process.
+ wxOutputStream *outStream = new wxProcessFileOutputStream(pipeIn[1]);
+ wxInputStream *inStream = new wxProcessFileInputStream(pipeOut[0]);
+ close(pipeIn[0]); // close reading side
+ close(pipeOut[1]); // close writing side
-#if wxUSE_UNICODE
- mb_argc = 0;
- while (mb_argv[mb_argc])
- free(mb_argv[mb_argc++]);
-#endif
+ process->SetPipeStreams(inStream, outStream);
+ }
+
+#if wxUSE_GUI
+ wxEndProcessData *data = new wxEndProcessData;
if ( sync )
{
- wxASSERT_MSG( !process, _T("wxProcess param ignored for sync exec") );
+ // 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)
return exitcode;
}
- else
+ else // async execution
{
// async execution, nothing special to do - caller will be
- // notified about the process terminationif process != NULL, data
+ // notified about the process termination if process != NULL, data
// will be deleted in GTK_EndProcessDetector
- data->process = process;
- data->pid = pid;
+ data->process = process;
+ data->pid = pid;
+ data->tag = wxAddProcessCallback(data, end_proc_detect[0]);
+
+ close(end_proc_detect[1]); // close writing side
return pid;
}
+#else // !wxUSE_GUI
+ wxASSERT_MSG( 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 0;
+
+ #undef ARGS_CLEANUP
}
// ----------------------------------------------------------------------------
{
*home = wxGetUserHome( wxString() );
if ( home->IsEmpty() )
- *home = _T("/");
+ *home = wxT("/");
return home->c_str();
}
#if wxUSE_UNICODE
const wxMB2WXbuf wxGetUserHome( const wxString &user )
-#else // just for binary compatibility
+#else // just for binary compatibility -- there is no 'const' here
char *wxGetUserHome( const wxString &user )
#endif
{
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(wxConv_libc.cWX2MB(ptr));
+ who = getpwnam(wxConvertWX2MB(ptr));
}
// We now make sure the the user exists!
who = getpwnam (user.mb_str());
}
-#if wxUSE_UNICODE
- return who ? wxConv_libc.cMB2WX(who->pw_dir) : (wxMB2WXbuf)((wxChar*)NULL);
-#else
- return who ? who->pw_dir : ((char*)NULL);
-#endif
+ return wxConvertMB2WX(who ? who->pw_dir : 0);
}
// ----------------------------------------------------------------------------
// 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, wxConv_libc.cMB2WX(uts.nodename), sz - 1);
- buf[sz] = _T('\0');
+ wxStrncpy(buf, wxConvertMB2WX(uts.nodename), sz - 1);
+ buf[sz] = wxT('\0');
}
#elif defined(HAVE_GETHOSTNAME)
bool ok = gethostname(buf, sz) != -1;
#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;
#endif // uname/gethostname
{
// 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(wxConv_libc.cWX2MB(buf));
+ struct hostent *host = gethostbyname(wxConvertWX2MB(buf));
if ( !host )
{
wxLogSysError(_("Cannot get the official hostname"));
else
{
// the canonical name
- wxStrncpy(buf, wxConv_libc.cMB2WX(host->h_name), sz);
+ wxStrncpy(buf, wxConvertMB2WX(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, wxConv_libc.cMB2WX(who->pw_name), sz - 1);
+ wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1);
return TRUE;
}
bool wxGetUserName(wxChar *buf, int sz)
{
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)
+ {
+ // pw_gecos field in struct passwd is not standard
+#if HAVE_PW_GECOS
+ char *comma = strchr(who->pw_gecos, ',');
if (comma)
*comma = '\0'; // cut off non-name comment fields
- wxStrncpy (buf, wxConv_libc.cMB2WX(who->pw_gecos), sz - 1);
+ wxStrncpy (buf, wxConvertMB2WX(who->pw_gecos), sz - 1);
+#else // !HAVE_PW_GECOS
+ wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1);
+#endif // HAVE_PW_GECOS/!HAVE_PW_GECOS
return TRUE;
}
return FALSE;
}
+wxString wxGetOsDescription()
+{
+#ifndef WXWIN_OS_DESCRIPTION
+ #error WXWIN_OS_DESCRIPTION should be defined in config.h by configure
+#else
+ return WXWIN_OS_DESCRIPTION;
+#endif
+}
+
// ----------------------------------------------------------------------------
// error and debug output routines (deprecated, use wxLog)
// ----------------------------------------------------------------------------
void wxError( const wxString &msg, const wxString &title )
{
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 (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
+ if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
+ wxFprintf( stderr, wxT(".\n") );
}
void wxFatalError( const wxString &msg, const wxString &title )
{
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 (!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()
}
+
projects / wxWidgets.git / blobdiff