src/motif/utilsexc.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utilsexec.cpp
   3 // Purpose:     Execution-related utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 // #pragma implementation
  14 #endif
  15
  16 #include "wx/utils.h"
  17 #include "wx/app.h"
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <errno.h>
  23
  24 #ifdef VMS
  25 /*steve*/
  26 #ifdef __HIDE_FORBIDDEN_NAMES
  27 #undefine __HIDE_FORBIDDEN_NAMES
  28 #endif
  29 #include <socket.h>
  30 #ifdef VAX
  31 /*because 'noshare' is not valid in vax C++*/
  32 #define CC$VAXCSHR 1
  33 #endif
  34 #include <unixlib.h>
  35 #define unlink DELETE
  36
  37 #else
  38
  39 #if defined(__AIX__) || defined(__xlC__)
  40 #include <sys/socket.h>
  41 #include <sys/select.h>
  42 #else
  43 #ifndef __DATA_GENERAL__
  44 #include <sys/syscall.h>
  45 #endif
  46 #endif
  47
  48 #include <sys/wait.h>
  49 #include <unistd.h>
  50 #include <dirent.h>
  51 #include <pwd.h>
  52
  53 #endif
  54
  55 #ifdef __SVR4__
  56   #include <sys/systeminfo.h>
  57 #endif
  58
  59 #ifdef __SOLARIS__
  60 // somehow missing from sys/wait.h but in the system's docs
  61 extern "C"
  62 {
  63    pid_t wait4(pid_t pid, int *statusp, int options, struct rusage
  64                *rusage);
  65 }
  66 #endif
  67
  68 #include <sys/time.h>
  69 #include <errno.h>
  70
  71 #include <Xm/Xm.h>
  72
  73 struct wxLocalProcessData
  74 {
  75   int pid, end_process;
  76   wxProcess *process;
  77 };
  78
  79 #ifdef __SOLARIS__
  80 // somehow missing from sys/wait.h but in the system's docs
  81 extern "C"
  82 {
  83    pid_t wait4(pid_t pid, int *statusp, int options, struct rusage
  84                *rusage);
  85 }
  86 #endif
  87
  88 void xt_notify_end_process(XtPointer client, int *fid,
  89                            XtInputId *id)
  90 {
  91   wxLocalProcessData *process_data = (wxLocalProcessData *)client;
  92
  93   int pid;
  94
  95   pid = (process_data->pid > 0) ? process_data->pid : -(process_data->pid);
  96
  97   /* wait4 is not part of any standard, use at own risk
  98    * not sure what wait4 does, but wait3 seems to be closest, whats a digit ;-)
  99    * --- offer@sgi.com */
 100 #if !defined(__sgi) && !defined(__ALPHA__)
 101   wait4(process_data->pid, NULL, 0, NULL);
 102 #else
 103   wait3((int *) NULL, 0, (rusage *) NULL);
 104 #endif
 105
 106   XtRemoveInput(*id);
 107   if (process_data->process)
 108     process_data->process->OnTerminate(process_data->pid);
 109
 110   process_data->end_process = TRUE;
 111
 112   if (process_data->pid > 0)
 113     delete process_data;
 114   else
 115     process_data->pid = 0;
 116 }
 117
 118 long wxExecute(char **argv, bool sync, wxProcess *handler)
 119 {
 120 #ifdef VMS
 121   return(0);
 122 #else
 123   if (*argv == NULL)
 124     return 0;   // Nothing???
 125
 126   int proc_link[2];
 127   if (pipe(proc_link))
 128     return 0;
 129
 130   /* fork the process */
 131 #if defined(sun) || defined(__ultrix) || defined(__bsdi__)
 132   pid_t pid = vfork ();
 133 #else
 134   pid_t pid = fork ();
 135 #endif
 136
 137   if (pid == -1)
 138     {
 139       return 0;
 140     }
 141   else if (pid == 0)
 142     {
 143 /* GUILHEM: Close all fds when sync == 0 */
 144       if (sync == 0)
 145         for (int fd=0;fd<FD_SETSIZE;fd++) {
 146           if (proc_link[1] != fd)
 147             close(fd);
 148         }
 149       /* child */
 150 #ifdef _AIX
 151       execvp ((const char *)*argv, (const char **)argv);
 152 #else
 153       execvp (*argv, argv);
 154 #endif
 155 /* GUILHEM: Reopen output stream */
 156 //      open("/dev/console", O_WRONLY);
 157 /* GUILHEM: End */
 158       if (errno == ENOENT)
 159         printf ("%s: command not found\n", *argv);
 160       else
 161         perror (*argv);
 162       printf ("wxWindows: could not execute '%s'\n", *argv);
 163       _exit (-1);
 164     }
 165
 166   wxLocalProcessData *process_data = new wxLocalProcessData;
 167
 168   process_data->end_process = 0;
 169   process_data->process = handler;
 170   process_data->pid = (sync) ? pid : -pid;
 171
 172   close(proc_link[1]);
 173   XtAppAddInput((XtAppContext) wxTheApp->GetAppContext(), proc_link[0],
 174                 (XtPointer *) XtInputReadMask,
 175                 (XtInputCallbackProc) xt_notify_end_process,
 176                 (XtPointer) process_data);
 177
 178   if (sync) {
 179     while (!process_data->end_process)
 180        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 181
 182     if (WIFEXITED(process_data->end_process) != 0)
 183       return WEXITSTATUS(process_data->end_process);
 184   }
 185
 186   delete process_data;
 187
 188   return pid;
 189 #endif
 190   // end VMS
 191 }
 192
 193 long wxExecute (const wxString& command, bool sync, wxProcess* handler)
 194 {
 195 #ifdef VMS
 196   return(0);
 197 #else
 198   if (command.IsNull() || command == "")
 199     return 0; // Nothing to do
 200
 201   // Run a program the recomended way under X (XView)
 202   int argc = 0;
 203   char *argv[127];
 204   char tmp[1024];
 205   const char *IFS = " \t\n";
 206
 207   // Build argument vector
 208   strncpy (tmp, (const char*) command, sizeof (tmp) / sizeof (char) - 1);
 209   tmp[sizeof (tmp) / sizeof (char) - 1] = '\0';
 210   argv[argc++] = strtok (tmp, IFS);
 211   while ((argv[argc++] = strtok (NULL, IFS)) != NULL)
 212     /* loop */ ;
 213
 214   return wxExecute(argv, sync, handler);
 215 #endif
 216   // VMS
 217 }