X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/02847e598495dd5b34110eb6ccef6645a1eb29ed..d37fd2fada5c7d1cbb78844a4a6540284256e72f:/src/gtk/utilsgtk.cpp diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp index 3de7efc8bc..a280a4c189 100644 --- a/src/gtk/utilsgtk.cpp +++ b/src/gtk/utilsgtk.cpp @@ -2,7 +2,6 @@ // Name: utils.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 // Id: $Id$ // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem // Licence: wxWindows licence @@ -19,6 +18,8 @@ #include "wx/intl.h" #include "wx/log.h" +#include "wx/process.h" + #include #include #include @@ -30,54 +31,73 @@ #include #include #include +#include // for O_WRONLY and friends +#include "glib.h" +#include "gdk/gdk.h" +#include "gtk/gtk.h" +#include "gtk/gtkfeatures.h" +#include "gdk/gdkx.h" #ifdef __SVR4__ #include #endif +#ifdef __SOLARIS__ +// somehow missing from sys/wait.h but in the system's docs +extern "C" +{ + pid_t wait4(pid_t pid, int *statusp, int options, struct rusage + *rusage); +} +#endif + //------------------------------------------------------------------------ // misc. //------------------------------------------------------------------------ void wxBell(void) { - gdk_beep(); -}; + gdk_beep(); +} void wxSleep(int nSecs) { - sleep(nSecs); -}; + sleep(nSecs); +} int wxKill(long pid, int sig) { - return kill(pid, sig); -}; + return kill(pid, sig); +} void wxDisplaySize( int *width, int *height ) { - if (width) *width = gdk_screen_width(); - if (height) *height = gdk_screen_height(); + if (width) *width = gdk_screen_width(); + if (height) *height = gdk_screen_height(); } void wxGetMousePosition( int* x, int* y ) { - wxFAIL_MSG( "GetMousePosition not yet implemented" ); - if (x) *x = 0; - if (y) *y = 0; -}; + gdk_window_get_pointer( (GdkWindow*) NULL, x, y, (GdkModifierType*) NULL ); +} bool wxColourDisplay(void) { - wxFAIL_MSG( "wxColourDisplay always returns TRUE" ); - return TRUE; + return TRUE; } int wxDisplayDepth(void) { - wxFAIL_MSG( "wxDisplayDepth always returns 8" ); - return 8; + return gdk_window_get_visual( (GdkWindow*) &gdk_root_parent )->depth; +} + +int wxGetOsVersion(int *majorVsn, int *minorVsn) +{ + if (majorVsn) *majorVsn = GTK_MAJOR_VERSION; + if (minorVsn) *minorVsn = GTK_MINOR_VERSION; + + return wxGTK; } //------------------------------------------------------------------------ @@ -86,34 +106,41 @@ int wxDisplayDepth(void) const char* wxGetHomeDir( wxString *home ) { - *home = wxGetUserHome( wxString() ); - if (home->IsNull()) *home = "/"; - return *home; -}; + *home = wxGetUserHome( wxString() ); + if (home->IsNull()) *home = "/"; + return *home; +} char *wxGetUserHome( const wxString &user ) { - struct passwd *who = (struct passwd *) NULL; + struct passwd *who = (struct passwd *) NULL; - if (user.IsNull() || (user== "")) - { + if (user.IsNull() || (user== "")) + { register char *ptr; if ((ptr = getenv("HOME")) != NULL) + { return ptr; - if ((ptr = getenv("USER")) != NULL - || (ptr = getenv("LOGNAME")) != NULL) { + } + if ((ptr = getenv("USER")) != NULL || (ptr = getenv("LOGNAME")) != NULL) + { who = getpwnam(ptr); } - // We now make sure the the user exists! + + /* We now make sure the the user exists! */ if (who == NULL) + { who = getpwuid(getuid()); - } - else - who = getpwnam (user); + } + } + else + { + who = getpwnam (user); + } - return who ? who->pw_dir : (char*)NULL; -}; + return who ? who->pw_dir : (char*)NULL; +} //------------------------------------------------------------------------ // id routines @@ -139,15 +166,15 @@ bool wxGetHostName(char *buf, int sz) // strncpy(buf, (h=gethostbyname(name))!=NULL ? h->h_name : name, sz-1); if((unsigned)sz > strlen(name)+strlen(domain)+1) { - strcpy(buf, name); - if(strcmp(domain,"(none)") == 0) // standalone machine - { - strcat(buf,"."); - strcat(buf,domain); - } + strcpy(buf, name); + if(strcmp(domain,"(none)") == 0) // standalone machine + { + strcat(buf,"."); + strcat(buf,domain); + } } else - return FALSE; + return FALSE; return TRUE; #endif } @@ -190,7 +217,7 @@ void wxDebugMsg( const char *format, ... ) vfprintf( stderr, format, ap ); fflush( stderr ); va_end(ap); -}; +} void wxError( const wxString &msg, const wxString &title ) { @@ -198,7 +225,7 @@ void wxError( const wxString &msg, const wxString &title ) if (!title.IsNull()) fprintf( stderr, "%s ", WXSTRINGCAST(title) ); if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) ); fprintf( stderr, ".\n" ); -}; +} void wxFatalError( const wxString &msg, const wxString &title ) { @@ -207,7 +234,7 @@ void wxFatalError( const wxString &msg, const wxString &title ) if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) ); fprintf( stderr, ".\n" ); exit(3); // the same exit code as for abort() -}; +} //------------------------------------------------------------------------ // directory routines @@ -215,50 +242,65 @@ void wxFatalError( const wxString &msg, const wxString &title ) bool wxDirExists( const wxString& dir ) { - char buf[500]; - strcpy( buf, WXSTRINGCAST(dir) ); - struct stat sbuf; - return ((stat(buf, &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE); -}; + char buf[500]; + strcpy( buf, WXSTRINGCAST(dir) ); + struct stat sbuf; + return ((stat(buf, &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE); +} //------------------------------------------------------------------------ // subprocess routines //------------------------------------------------------------------------ +// if pid > 0, the execution is async and the data is freed in +// GTK_EndProcessDetector, if pid < 0, the execution is synchronous and the +// caller (wxExecute) frees the data struct wxEndProcessData { - gint pid, tag; - wxProcess *process; + gint pid, tag; + wxProcess *process; + int exitcode; }; static void GTK_EndProcessDetector(gpointer data, gint source, GdkInputCondition WXUNUSED(condition) ) { - wxEndProcessData *proc_data = (wxEndProcessData *)data; - int pid; - - pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid); - - /* wait4 is not part of any standard, use at own risk - * not sure what wait4 does, but wait3 seems to be closest, whats a digit ;-) - * --- offer@sgi.com */ + wxEndProcessData *proc_data = (wxEndProcessData *)data; + int pid; + + pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid); + + /* wait4 is not part of any standard, use at own risk + * not sure what wait4 does, but wait3 seems to be closest, whats a digit ;-) + * --- offer@sgi.com */ + // VZ: wait4() will be woken up by a signal, not wait3 - so it's quite + // different (also, wait3() waits for any child, wait4() only for this + // one) + int status = -1; #if !defined(__sgi) - wait4(proc_data->pid, NULL, 0, NULL); + wait4(pid, &status, 0, (rusage *) NULL); #else - wait3((int *) NULL, 0, (rusage *) NULL); + wait3(&status, 0, (rusage *) NULL); #endif - close(source); - gdk_input_remove(proc_data->tag); + close(source); + gdk_input_remove(proc_data->tag); - if (proc_data->process) - proc_data->process->OnTerminate(proc_data->pid); + if (proc_data->process) + proc_data->process->OnTerminate(proc_data->pid, status); - if (proc_data->pid > 0) - delete proc_data; - else - proc_data->pid = 0; -}; + if (proc_data->pid > 0) + { + delete proc_data; + } + else + { + // wxExecute() will know about it + proc_data->exitcode = status; + + proc_data->pid = 0; + } +} long wxExecute( char **argv, bool sync, wxProcess *process ) { @@ -268,9 +310,10 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) wxCHECK_MSG( *argv, 0, "can't exec empty command" ); /* Create pipes */ - if (pipe(end_proc_detect) == -1) { - wxLogSysError(_("Pipe creation failed")); - return 0; + if (pipe(end_proc_detect) == -1) + { + wxLogSysError( _("Pipe creation failed") ); + return 0; } /* fork the process */ @@ -279,49 +322,81 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) #else pid_t pid = fork(); #endif - if (pid == -1) { - // error - wxLogSysError(_("Fork failed")); + if (pid == -1) + { + wxLogSysError( _("Fork failed") ); return 0; } - else if (pid == 0) { + else if (pid == 0) + { // we're in child close(end_proc_detect[0]); // close reading side + // These three 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. + close(STDIN_FILENO); + close(STDOUT_FILENO); + + // leave stderr opened, it won't do any hurm +#if 0 + close(STDERR_FILENO); + + // 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 + #ifdef _AIX execvp ((const char *)*argv, (const char **)argv); #else execvp (*argv, argv); #endif + // there is no return after successful exec() - wxLogSysError(_("Can't execute '%s'"), *argv); + fprintf(stderr, _("Can't execute '%s'\n"), *argv); _exit(-1); } - else { - // we're in parent - close(end_proc_detect[1]); // close writing side - data->tag = gdk_input_add(end_proc_detect[0], GDK_INPUT_READ, - GTK_EndProcessDetector, (gpointer)data); - data->pid = pid; - if (!sync) { - data->process = process; - } - else { - data->process = (wxProcess *) NULL; - data->pid = -(data->pid); - - while (data->pid != 0) - wxYield(); - - delete data; - } - - // @@@ our return value indicates success even if execvp() in the child - // failed! - return pid; + else + { + // we're in parent + close(end_proc_detect[1]); // close writing side + data->tag = gdk_input_add(end_proc_detect[0], GDK_INPUT_READ, + GTK_EndProcessDetector, (gpointer)data); + if ( sync ) + { + wxASSERT_MSG( !process, "wxProcess param ignored for sync exec" ); + data->process = NULL; + + // sync execution: indicate it by negating the pid + data->pid = -pid; + + // it will be set to 0 from GTK_EndProcessDetector + while (data->pid != 0) + wxYield(); + + int exitcode = data->exitcode; + + delete data; + + return exitcode; + } + 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; + } } -}; +} long wxExecute( const wxString& command, bool sync, wxProcess *process ) { @@ -339,8 +414,8 @@ long wxExecute( const wxString& command, bool sync, wxProcess *process ) /* loop */ ; long lRc = wxExecute(argv, sync, process); - + delete [] tmp; return lRc; -}; +}