#include "wx/intl.h"
#include "wx/log.h"
+#include "wx/app.h"
#include "wx/utils.h"
#include "wx/process.h"
+#include "wx/thread.h"
-#include "wx/unix/execute.h"
+#include "wx/stream.h"
+
+#ifdef HAVE_STATFS
+ #include <sys/vfs.h>
+#endif // HAVE_STATFS
+
+#if wxUSE_GUI
+ #include "wx/unix/execute.h"
+#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 <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
#ifdef __SUN__
int usleep(unsigned int usec);
#else // !Sun
- #ifdef __EMX
- /* I copied this from the XFree86 diffs. AV. */
- #define INCL_DOSPROCESS
- #include <os2.h>
- void usleep(unsigned long delay)
- {
- DosSleep(delay ? (delay/1000l) : 1l);
- }
- #else
- void usleep(unsigned long usec);
- #endif
+ #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
+
+ #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
// process management
// ----------------------------------------------------------------------------
-int wxKill(long pid, wxSignal sig)
+int wxKill(long pid, wxSignal sig, wxKillError *rc)
{
- return kill(pid, (int)sig);
+ int err = kill((pid_t)pid, (int)sig);
+ if ( rc )
+ {
+ switch ( err )
+ {
+ 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
return lRc;
}
-bool wxShell(const wxString& command)
+// ----------------------------------------------------------------------------
+// wxShell
+// ----------------------------------------------------------------------------
+
+static wxString wxMakeShellCommand(const wxString& command)
{
wxString cmd;
- if ( !!command )
- cmd.Printf(wxT("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;
+}
- return wxExecute(cmd) != 0;
+bool wxShell(const wxString& command, wxArrayString& output)
+{
+ wxCHECK_MSG( !!command, FALSE, _T("can't exec shell non interactively") );
+
+ 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
{
- wxLogSysError(_("Waiting for subprocess termination failed"));
+ rc = waitpid(pid, &status, 0);
}
- else
+ while ( rc == -1 && errno == EINTR );
+
+ 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;
+
+ proc_data->pid = 0;
+ }
}
+}
- // clean up
- if ( proc_data->pid > 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
+{
+ 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 )
+ {
+ m_lasterror = wxSTREAM_EOF;
+ }
+ else if ( ret == -1 )
+ {
+ m_lasterror = wxSTREAM_READ_ERROR;
+ ret = 0;
+ }
+ else
{
- delete proc_data;
+ 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
{
- // wxExecute() will know about it
- proc_data->exitcode = status;
+ m_lasterror = wxSTREAM_NOERROR;
+ }
+
+ return ret;
+}
+
+// ----------------------------------------------------------------------------
+// wxStreamTempBuffer
+// ----------------------------------------------------------------------------
+
+/*
+ Extract of a mail to wx-users to give the context of the problem we are
+ trying to solve here:
+
+ MC> If I run the command:
+ MC> find . -name "*.h" -exec grep linux {} \;
+ MC> in the exec sample synchronously from the 'Capture command output'
+ MC> menu, wxExecute never returns. I have to xkill it. Has anyone
+ MC> else encountered this?
+
+ Yes, I can reproduce it too.
+
+ I even think I understand why it happens: before launching the external
+ command we set up a pipe with a valid file descriptor on the reading side
+ when the output is redirected. So the subprocess happily writes to it ...
+ until the pipe buffer (which is usually quite big on Unix, I think the
+ default is 4Mb) is full. Then the writing process stops and waits until we
+ read some data from the pipe to be able to continue writing to it but we
+ never do it because we wait until it terminates to start reading and so we
+ have a classical deadlock.
+
+ Here is the fix: we now read the output as soon as it appears into a temp
+ buffer (wxStreamTempBuffer object) and later just stuff it back into the
+ stream when the process terminates. See supporting code in wxExecute()
+ itself as well.
+*/
+
+class wxStreamTempBuffer
+{
+public:
+ wxStreamTempBuffer();
+
+ // call to associate a stream with this buffer, otherwise nothing happens
+ // at all
+ void Init(wxInputStream *stream);
+
+ // check for input on our stream and cache it in our buffer if any
+ void Update();
+
+ ~wxStreamTempBuffer();
+
+private:
+ // the stream we're buffering, if NULL we don't do anything at all
+ wxInputStream *m_stream;
+
+ // the buffer of size m_size (NULL if m_size == 0)
+ void *m_buffer;
+
+ // the size of the buffer
+ size_t m_size;
+};
+
+wxStreamTempBuffer::wxStreamTempBuffer()
+{
+ m_stream = NULL;
+ m_buffer = NULL;
+ m_size = 0;
+}
+
+void wxStreamTempBuffer::Init(wxInputStream *stream)
+{
+ m_stream = stream;
+}
+
+void wxStreamTempBuffer::Update()
+{
+ if ( m_stream && !m_stream->Eof() )
+ {
+ // realloc in blocks of 1Kb - surely not the best strategy but which
+ // one is?
+ static const size_t incSize = 1024;
+
+ void *buf = realloc(m_buffer, m_size + incSize);
+ if ( !buf )
+ {
+ // don't read any more, we don't have enough memory to do it
+ m_stream = NULL;
+ }
+ else // got memory for the buffer
+ {
+ m_buffer = buf;
+ m_stream->Read((char *)m_buffer + m_size, incSize);
+ m_size += incSize;
+ }
+ }
+}
- proc_data->pid = 0;
+wxStreamTempBuffer::~wxStreamTempBuffer()
+{
+ if ( m_buffer )
+ {
+ m_stream->Ungetch(m_buffer, m_size);
+ free(m_buffer);
}
}
-long wxExecute( wxChar **argv, bool sync, wxProcess *process )
+#endif // wxUSE_STREAMS
+
+long wxExecute(wxChar **argv,
+ bool sync,
+ wxProcess *process)
{
- wxCHECK_MSG( *argv, 0, wxT("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 ((sync) ? -1 : 0)
+
+ wxCHECK_MSG( *argv, ERROR_RETURN_CODE, wxT("can't exec empty command") );
#if wxUSE_UNICODE
int mb_argc = 0;
while (argv[mb_argc])
{
- wxWX2MBbuf mb_arg = wxConvertWX2MB(argv[mb_argc]);
- mb_argv[mb_argc] = strdup(mb_arg);
- mb_argc++;
+ wxWX2MBbuf mb_arg = wxConvertWX2MB(argv[mb_argc]);
+ mb_argv[mb_argc] = strdup(mb_arg);
+ mb_argc++;
}
mb_argv[mb_argc] = (char *) NULL;
// this macro will free memory we used above
#define ARGS_CLEANUP \
- for ( mb_argc = 0; mb_argb[mb_argc]; mb_argc++ ) \
+ for ( mb_argc = 0; mb_argv[mb_argc]; mb_argc++ ) \
free(mb_argv[mb_argc])
#else // ANSI
// no need for cleanup
#if wxUSE_GUI
// create pipes
int end_proc_detect[2];
- if (pipe(end_proc_detect) == -1)
+ if ( pipe(end_proc_detect) == -1 )
{
wxLogSysError( _("Pipe creation failed") );
+ wxLogError( _("Failed to execute '%s'\n"), *argv );
ARGS_CLEANUP;
- return 0;
+ 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;
+
+ if ( process && process->IsRedirected() )
+ {
+ if ( pipe(pipeIn) == -1 || pipe(pipeOut) == -1 || pipe(pipeErr) == -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 ERROR_RETURN_CODE;
+ }
+ }
+
// fork the process
-#if HAVE_VFORK
+#ifdef HAVE_VFORK
pid_t pid = 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]);
+ close(pipeErr[0]);
+ close(pipeErr[1]);
+#endif // wxUSE_GUI
+
wxLogSysError( _("Fork failed") );
ARGS_CLEANUP;
- return 0;
+ return ERROR_RETURN_CODE;
}
- else if (pid == 0)
+ else if ( pid == 0 ) // we're in child
{
#if wxUSE_GUI
- // we're in child
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 == pipeIn[0] || fd == pipeOut[1] || fd == pipeErr[1]
#if wxUSE_GUI
- if ( fd == end_proc_detect[1] )
- continue;
+ || 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, stdout and stderr
+ if ( pipeIn[0] != -1 )
+ {
+ if ( dup2(pipeIn[0], STDIN_FILENO) == -1 ||
+ dup2(pipeOut[1], STDOUT_FILENO) == -1 ||
+ dup2(pipeErr[1], STDERR_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]);
+ close(pipeErr[1]);
+ }
execvp (*mb_argv, mb_argv);
// there is no return after successful exec()
- wxFprintf(stderr, _("Can't execute '%s'\n"), *argv);
-
_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?
+#if defined(__VMS) || defined(__INTEL_COMPILER)
+ return 0;
+#endif
}
- else
+ else // we're in parent
{
-#if wxUSE_GUI
- // 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 wxUSE_STREAMS
+ wxStreamTempBuffer bufIn, bufErr;
+#endif // wxUSE_STREAMS
- ARGS_CLEANUP;
+ if ( process && process->IsRedirected() )
+ {
+#if wxUSE_STREAMS
+ // in/out for subprocess correspond to our out/in
+ wxOutputStream *outStream = new wxProcessFileOutputStream(pipeIn[1]);
+ wxInputStream *inStream = new wxProcessFileInputStream(pipeOut[0]);
+ wxInputStream *errStream = new wxProcessFileInputStream(pipeErr[0]);
+
+ process->SetPipeStreams(inStream, outStream, errStream);
+
+ bufIn.Init(inStream);
+ bufErr.Init(inStream);
+#endif // wxUSE_STREAMS
+
+ close(pipeIn[0]); // close reading side
+ close(pipeOut[1]); // close writing side
+ close(pipeErr[1]); // close writing side
+ }
+
+#if wxUSE_GUI && !defined(__WXMICROWIN__)
+ wxEndProcessData *data = new wxEndProcessData;
if ( sync )
{
- wxASSERT_MSG( !process, wxT("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)
+ // data->pid will be set to 0 from GTK_EndProcessDetector when the
+ // process terminates
+ while ( data->pid != 0 )
+ {
+#if wxUSE_STREAMS
+ bufIn.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;
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;
}
return exitcode;
#endif // wxUSE_GUI
}
-
- #undef ARGS_CLEANUP
}
+#undef ERROR_RETURN_CODE
+#undef ARGS_CLEANUP
+
// ----------------------------------------------------------------------------
// file and directory functions
// ----------------------------------------------------------------------------
const wxChar* wxGetHomeDir( wxString *home )
{
*home = wxGetUserHome( wxString() );
+ wxString tmp;
if ( home->IsEmpty() )
*home = wxT("/");
-
+#ifdef __VMS
+ tmp = *home;
+ if ( tmp.Last() != wxT(']'))
+ if ( tmp.Last() != wxT('/')) *home << wxT('/');
+#endif
return home->c_str();
}
who = getpwnam (user.mb_str());
}
- return wxConvertMB2WX(who ? who->pw_dir : NULL);
+ return wxConvertMB2WX(who ? who->pw_dir : 0);
}
// ----------------------------------------------------------------------------
bool wxGetUserName(wxChar *buf, int sz)
{
struct passwd *who;
- char *comma;
*buf = wxT('\0');
- if ((who = getpwuid (getuid ())) != NULL) {
- comma = strchr(who->pw_gecos, ',');
+ if ((who = getpwuid (getuid ())) != NULL)
+ {
+ // pw_gecos field in struct passwd is not standard
+#ifdef HAVE_PW_GECOS
+ char *comma = strchr(who->pw_gecos, ',');
if (comma)
*comma = '\0'; // cut off non-name comment fields
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;
}
-#if wxUSE_GUI
-
-// ----------------------------------------------------------------------------
-// error and debug output routines (deprecated, use wxLog)
-// ----------------------------------------------------------------------------
-
-void wxDebugMsg( const char *format, ... )
+wxString wxGetOsDescription()
{
- va_list ap;
- va_start( ap, format );
- vfprintf( stderr, format, ap );
- fflush( stderr );
- va_end(ap);
+#ifndef WXWIN_OS_DESCRIPTION
+ #error WXWIN_OS_DESCRIPTION should be defined in config.h by configure
+#else
+ return WXWIN_OS_DESCRIPTION;
+#endif
}
-void wxError( const wxString &msg, const wxString &title )
-{
- wxFprintf( stderr, _("Error ") );
- if (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
- if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
- wxFprintf( stderr, wxT(".\n") );
-}
+// this function returns the GUI toolkit version in GUI programs, but OS
+// version in non-GUI ones
+#if !wxUSE_GUI
-void wxFatalError( const wxString &msg, const wxString &title )
+int wxGetOsVersion(int *majorVsn, int *minorVsn)
{
- wxFprintf( stderr, _("Error ") );
- if (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
- if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
- wxFprintf( stderr, wxT(".\n") );
- exit(3); // the same exit code as for abort()
-}
-
-// ----------------------------------------------------------------------------
-// font-related functions
-// ----------------------------------------------------------------------------
+ int major, minor;
+ char name[256];
-// define the functions to create and destroy native fonts for this toolkit
-#ifdef __X__
- static inline wxNativeFont wxLoadFont(const wxString& fontSpec)
+ if ( sscanf(WXWIN_OS_DESCRIPTION, "%s %d.%d", name, &major, &minor) != 3 )
{
- return XLoadQueryFont((Display *)wxGetDisplay(), fontSpec);
+ // unreckognized uname string format
+ major = minor = -1;
}
- static inline void wxFreeFont(wxNativeFont font)
- {
- XFreeFont((Display *)wxGetDisplay(), font);
- }
-#elif defined(__WXGTK__)
+ if ( majorVsn )
+ *majorVsn = major;
+ if ( minorVsn )
+ *minorVsn = minor;
- #include "gdk/gdk.h"
+ return wxUNIX;
+}
- static inline wxNativeFont wxLoadFont(const wxString& fontSpec)
- {
- return gdk_font_load( wxConvertWX2MB(fontSpec) );
- }
+#endif // !wxUSE_GUI
- static inline void wxFreeFont(wxNativeFont font)
+long wxGetFreeMemory()
+{
+#if defined(__LINUX__)
+ // get it from /proc/meminfo
+ FILE *fp = fopen("/proc/meminfo", "r");
+ if ( fp )
{
- gdk_font_unref(font);
+ long memFree = -1;
+
+ char buf[1024];
+ if ( fgets(buf, WXSIZEOF(buf), fp) && fgets(buf, WXSIZEOF(buf), fp) )
+ {
+ long memTotal, memUsed;
+ sscanf(buf, "Mem: %ld %ld %ld", &memTotal, &memUsed, &memFree);
+ }
+
+ fclose(fp);
+
+ return memFree;
}
-#else
- #error "Unknown GUI toolkit"
+#elif defined(__SUN__) && defined(_SC_AVPHYS_PAGES)
+ return sysconf(_SC_AVPHYS_PAGES)*sysconf(_SC_PAGESIZE);
+//#elif defined(__FREEBSD__) -- might use sysctl() to find it out, probably
#endif
-// returns TRUE if there are any fonts matching this font spec
-static bool wxTestFontSpec(const wxString& fontspec)
+ // can't find it out
+ return -1;
+}
+
+bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
{
- wxNativeFont test = wxLoadFont(fontspec);
- if ( test )
- {
- wxFreeFont(test);
+#ifdef HAVE_STATFS
- return TRUE;
- }
- else
+ struct statfs fs;
+ if ( statfs(path, &fs) != 0 )
{
+ wxLogSysError("Failed to get file system statistics");
+
return FALSE;
}
-}
-// TODO encoding test logic should be moved to wxLoadQueryNearestFont()
-static wxNativeFont wxLoadQueryFont(int pointSize,
- int family,
- int style,
- int weight,
- bool WXUNUSED(underlined),
- const wxString &facename,
- wxFontEncoding encoding )
-{
- wxString xfamily;
- switch (family)
+ if ( pTotal )
{
- case wxDECORATIVE: xfamily = wxT("lucida"); break;
- case wxROMAN: xfamily = wxT("times"); break;
- case wxMODERN: xfamily = wxT("courier"); break;
- case wxSWISS: xfamily = wxT("helvetica"); break;
- case wxTELETYPE: xfamily = wxT("lucidatypewriter"); break;
- case wxSCRIPT: xfamily = wxT("utopia"); break;
- default: xfamily = wxT("*");
+ *pTotal = wxLongLong(fs.f_blocks) * fs.f_bsize;
}
- wxString fontSpec;
- if (!facename.IsEmpty())
+ if ( pFree )
{
- fontSpec.Printf(wxT("-*-%s-*-*-normal-*-*-*-*-*-*-*-*-*"),
- facename.c_str());
-
- if ( wxTestFontSpec(fontSpec) )
- {
- xfamily = facename;
- }
- //else: no such family, use default one instead
- }
-
- wxString xstyle;
- switch (style)
- {
- case wxITALIC: xstyle = wxT("i"); break;
- case wxSLANT: xstyle = wxT("o"); break;
- case wxNORMAL: xstyle = wxT("r"); break;
- default: xstyle = wxT("*"); break;
- }
-
- wxString xweight;
- switch (weight)
- {
- case wxBOLD:
- {
- fontSpec.Printf(wxT("-*-%s-bold-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("bold");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-heavy-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("heavy");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-extrabold-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("extrabold");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-demibold-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("demibold");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-black-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("black");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-ultrablack-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("ultrablack");
- break;
- }
- }
- break;
- case wxLIGHT:
- {
- fontSpec.Printf(wxT("-*-%s-light-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("light");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-thin-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("thin");
- break;
- }
- }
- break;
- case wxNORMAL:
- {
- fontSpec.Printf(wxT("-*-%s-medium-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("medium");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-normal-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("normal");
- break;
- }
- fontSpec.Printf(wxT("-*-%s-regular-*-*-*-*-*-*-*-*-*-*-*"),
- xfamily.c_str());
- if ( wxTestFontSpec(fontSpec) )
- {
- xweight = wxT("regular");
- break;
- }
- xweight = wxT("*");
- }
- break;
- default: xweight = wxT("*"); break;
- }
-
- wxString xregistry, xencoding;
- if ( encoding == wxFONTENCODING_DEFAULT )
- {
- // use the apps default
- encoding = wxFont::GetDefaultEncoding();
- }
-
- bool test = TRUE; // should we test for availability of encoding?
- switch ( encoding )
- {
- case wxFONTENCODING_ISO8859_1:
- case wxFONTENCODING_ISO8859_2:
- case wxFONTENCODING_ISO8859_3:
- case wxFONTENCODING_ISO8859_4:
- case wxFONTENCODING_ISO8859_5:
- case wxFONTENCODING_ISO8859_6:
- case wxFONTENCODING_ISO8859_7:
- case wxFONTENCODING_ISO8859_8:
- case wxFONTENCODING_ISO8859_9:
- case wxFONTENCODING_ISO8859_10:
- case wxFONTENCODING_ISO8859_11:
- case wxFONTENCODING_ISO8859_13:
- case wxFONTENCODING_ISO8859_14:
- case wxFONTENCODING_ISO8859_15:
- {
- int cp = encoding - wxFONTENCODING_ISO8859_1 + 1;
- xregistry = wxT("iso8859");
- xencoding.Printf(wxT("%d"), cp);
- }
- break;
-
- case wxFONTENCODING_KOI8:
- xregistry = wxT("koi8");
- if ( wxTestFontSpec(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-koi8-1")) )
- {
- xencoding = wxT("1");
+ *pFree = wxLongLong(fs.f_bavail) * fs.f_bsize;
+ }
- // test passed, no need to do it once more
- test = FALSE;
- }
- else
- {
- xencoding = wxT("*");
- }
- break;
+ return TRUE;
+#endif // HAVE_STATFS
- case wxFONTENCODING_CP1250:
- case wxFONTENCODING_CP1251:
- case wxFONTENCODING_CP1252:
- {
- int cp = encoding - wxFONTENCODING_CP1250 + 1250;
- fontSpec.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-microsoft-cp%d"),
- cp);
- if ( wxTestFontSpec(fontSpec) )
- {
- xregistry = wxT("microsoft");
- xencoding.Printf(wxT("cp%d"), cp);
+ return FALSE;
+}
- // test passed, no need to do it once more
- test = FALSE;
- }
- else
- {
- // fall back to LatinX
- xregistry = wxT("iso8859");
- xencoding.Printf(wxT("%d"), cp - 1249);
- }
- }
- break;
+// ----------------------------------------------------------------------------
+// env vars
+// ----------------------------------------------------------------------------
- case wxFONTENCODING_SYSTEM:
- default:
- test = FALSE;
- xregistry =
- xencoding = wxT("*");
- }
+bool wxGetEnv(const wxString& var, wxString *value)
+{
+ // wxGetenv is defined as getenv()
+ wxChar *p = wxGetenv(var);
+ if ( !p )
+ return FALSE;
- if ( test )
+ if ( value )
{
- fontSpec.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-%s-%s"),
- xregistry.c_str(), xencoding.c_str());
- if ( !wxTestFontSpec(fontSpec) )
- {
- // this encoding isn't available - what to do?
- xregistry =
- xencoding = wxT("*");
- }
+ *value = p;
}
- // construct the X font spec from our data
- fontSpec.Printf(wxT("-*-%s-%s-%s-normal-*-*-%d-*-*-*-*-%s-%s"),
- xfamily.c_str(), xweight.c_str(), xstyle.c_str(),
- pointSize, xregistry.c_str(), xencoding.c_str());
+ return TRUE;
+}
- return wxLoadFont(fontSpec);
+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;
+#elif defined(HAVE_PUTENV)
+ wxString s = variable;
+ if ( value )
+ s << _T('=') << value;
+
+ // transform to ANSI
+ const char *p = s.mb_str();
+
+ // the string will be free()d by libc
+ char *buf = (char *)malloc(strlen(p) + 1);
+ strcpy(buf, p);
+
+ return putenv(buf) == 0;
+#else // no way to set an env var
+ return FALSE;
+#endif
}
-wxNativeFont wxLoadQueryNearestFont(int pointSize,
- int family,
- int style,
- int weight,
- bool underlined,
- const wxString &facename,
- wxFontEncoding encoding)
+// ----------------------------------------------------------------------------
+// signal handling
+// ----------------------------------------------------------------------------
+
+#if wxUSE_ON_FATAL_EXCEPTION
+
+#include <signal.h>
+
+static void wxFatalSignalHandler(wxTYPE_SA_HANDLER)
{
- wxNativeFont font = wxLoadQueryFont( pointSize, family, style, weight,
- underlined, facename, encoding );
+ if ( wxTheApp )
+ {
+ // give the user a chance to do something special about this
+ wxTheApp->OnFatalException();
+ }
- if (!font)
+ 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 )
{
- // search up and down by stepsize 10
- int max_size = pointSize + 20 * (1 + (pointSize/180));
- int min_size = pointSize - 20 * (1 + (pointSize/180));
+ // install the signal handler
+ struct sigaction act;
- int i;
+ // some systems extend it with non std fields, so zero everything
+ memset(&act, 0, sizeof(act));
- // Search for smaller size (approx.)
- for ( i = pointSize - 10; !font && i >= 10 && i >= min_size; i -= 10 )
- {
- font = wxLoadQueryFont(i, family, style, weight, underlined,
- facename, encoding );
- }
+ act.sa_handler = wxFatalSignalHandler;
+ sigemptyset(&act.sa_mask);
+ act.sa_flags = 0;
- // Search for larger size (approx.)
- for ( i = pointSize + 10; !font && i <= max_size; i += 10 )
+ 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 )
{
- font = wxLoadQueryFont( i, family, style, weight, underlined,
- facename, encoding );
+ wxLogDebug(_T("Failed to install our signal handler."));
}
- // Try default family
- if ( !font && family != wxDEFAULT )
+ 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 )
{
- font = wxLoadQueryFont( pointSize, wxDEFAULT, style, weight,
- underlined, facename, encoding );
+ wxLogDebug(_T("Failed to uninstall our signal handler."));
}
- // Bogus font I
- if ( !font )
- {
- font = wxLoadQueryFont(120, wxDEFAULT, wxNORMAL, wxNORMAL,
- underlined, facename, encoding );
- }
-
- // Bogus font II
- if ( !font )
- {
- font = wxLoadQueryFont(120, wxDEFAULT, wxNORMAL, wxNORMAL,
- underlined, wxEmptyString, encoding );
- }
+ s_savedHandlers = FALSE;
}
+ //else: nothing to do
- return font;
+ return ok;
+}
+
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+// ----------------------------------------------------------------------------
+// error and debug output routines (deprecated, use wxLog)
+// ----------------------------------------------------------------------------
+
+void wxDebugMsg( const char *format, ... )
+{
+ va_list ap;
+ va_start( ap, format );
+ vfprintf( stderr, format, ap );
+ fflush( stderr );
+ va_end(ap);
+}
+
+void wxError( const wxString &msg, const wxString &title )
+{
+ wxFprintf( stderr, _("Error ") );
+ if (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
+ if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
+ wxFprintf( stderr, wxT(".\n") );
+}
+
+void wxFatalError( const wxString &msg, const wxString &title )
+{
+ wxFprintf( stderr, _("Error ") );
+ if (!title.IsNull()) wxFprintf( stderr, wxT("%s "), WXSTRINGCAST(title) );
+ if (!msg.IsNull()) wxFprintf( stderr, wxT(": %s"), WXSTRINGCAST(msg) );
+ wxFprintf( stderr, wxT(".\n") );
+ exit(3); // the same exit code as for abort()
}
-#endif // wxUSE_GUI
projects / wxWidgets.git / blobdiff