+wxProcessFileInputStream::~wxProcessFileInputStream()
+{
+ close(m_fd);
+}
+
+size_t wxProcessFileInputStream::OnSysRead(void *buffer, size_t bufsize)
+{
+ int ret;
+
+ ret = read(m_fd, buffer, bufsize);
+ m_lasterror = wxSTREAM_NOERROR;
+ if (ret == 0)
+ m_lasterror = wxSTREAM_EOF;
+ if (ret == -1) {
+ m_lasterror = wxSTREAM_READ_ERROR;
+ ret = 0;
+ }
+ return ret;
+}
+
+wxProcessFileOutputStream::wxProcessFileOutputStream(int fd)
+{
+ m_fd = fd;
+}
+
+wxProcessFileOutputStream::~wxProcessFileOutputStream()
+{
+ close(m_fd);
+}
+
+size_t wxProcessFileOutputStream::OnSysWrite(const void *buffer, size_t bufsize)
+{
+ int ret;
+
+ ret = write(m_fd, buffer, bufsize);
+ m_lasterror = wxSTREAM_NOERROR;
+ if (ret == -1) {
+ m_lasterror = wxSTREAM_WRITE_ERROR;
+ ret = 0;
+ }
+ return ret;
+}
+
+#endif
+
+long wxExecute(wxChar **argv,
+ bool sync,
+ wxProcess * WXUNUSED_UNLESS_GUI(process))
+{
+ wxCHECK_MSG( *argv, 0, wxT("can't exec empty command") );
+
+#if wxUSE_UNICODE
+ int mb_argc = 0;
+ char *mb_argv[WXEXECUTE_NARGS];
+
+ 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;
+
+ // 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 // Unicode/ANSI