Mercurial > octave
view src/interp-core/oct-procbuf.cc @ 15096:909a2797935b
maint: Move interp source code without DEFUNs to interp-core/ dir.
* src/Makefile.am, interpfcn/module.mk, operators/module.mk,
parse-tree/module.mk: Update build system by moving source lists and rules
to the correct directory.
* Cell.cc, Cell.h, c-file-ptr-stream.cc, c-file-ptr-stream.h, comment-list.cc,
comment-list.h, cutils.c, cutils.h, defun-dld.h, defun-int.h, display.cc,
display.h, dynamic-ld.cc, dynamic-ld.h, gl-render.cc, gl-render.h,
gl2ps-renderer.cc, gl2ps-renderer.h, gl2ps.c, gl2ps.h, gripes.cc, gripes.h,
jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, jit-util.cc, jit-util.h,
ls-ascii-helper.cc, ls-ascii-helper.h, ls-hdf5.cc, ls-hdf5.h, ls-mat-ascii.cc,
ls-mat-ascii.h, ls-mat4.cc, ls-mat4.h, ls-mat5.cc, ls-mat5.h, ls-oct-binary.cc,
ls-oct-binary.h, ls-utils.cc, ls-utils.h, matherr.c, mex.cc, mex.h, mexproto.h,
module.mk, mxarray.in.h, oct-errno.h, oct-errno.in.cc, oct-fstrm.cc,
oct-fstrm.h, oct-hdf5.h, oct-iostrm.cc, oct-iostrm.h, oct-lvalue.cc,
oct-lvalue.h, oct-map.cc, oct-map.h, oct-obj.cc, oct-obj.h, oct-prcstrm.cc,
oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc,
oct-stream.h, oct-strstrm.cc, oct-strstrm.h, oct.h, procstream.cc,
procstream.h, pt-jit.cc, pt-jit.h, siglist.c, siglist.h, sparse-xdiv.cc,
sparse-xdiv.h, sparse-xpow.cc, sparse-xpow.h, txt-eng-ft.cc, txt-eng-ft.h,
txt-eng.h, unwind-prot.cc, unwind-prot.h, xdiv.cc, xdiv.h, xgl2ps.c, xnorm.cc,
xnorm.h, xpow.cc, xpow.h, zfstream.cc, zfstream.h: Move from src/ dir to
src/interp-core dir.
* ops.h: Move to operators/ directory.
* octave.gperf, token.cc, token.h: Move to parse-tree directory.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 03 Aug 2012 13:18:21 -0700 |
parents | src/oct-procbuf.cc@72c96de7a403 |
children |
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/* Copyright (C) 1996-2012 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <cerrno> #include <iostream> #include <sys/types.h> #include <unistd.h> #include "lo-mappers.h" #include "lo-utils.h" #include "oct-procbuf.h" #include "oct-syscalls.h" #include "sysdep.h" #include "variables.h" #include "defun.h" #include "gripes.h" #include "utils.h" // This class is based on the procbuf class from libg++, written by // Per Bothner, Copyright (C) 1993 Free Software Foundation. static octave_procbuf *octave_procbuf_list = 0; #ifndef BUFSIZ #define BUFSIZ 1024 #endif octave_procbuf * octave_procbuf::open (const char *command, int mode) { #if defined (__CYGWIN__) || defined (__MINGW32__) || defined (_MSC_VER) if (is_open ()) return 0; f = octave_popen (command, (mode & std::ios::in) ? "r" : "w"); if (! f) return 0; // Oops... popen doesn't return the associated pid, so fake it for now proc_pid = 1; open_p = true; if (mode & std::ios::out) ::setvbuf (f, 0, _IOLBF, BUFSIZ); return this; #elif defined (HAVE_SYS_WAIT_H) int pipe_fds[2]; volatile int child_std_end = (mode & std::ios::in) ? 1 : 0; volatile int parent_end, child_end; if (is_open ()) return 0; if (pipe (pipe_fds) < 0) return 0; if (mode & std::ios::in) { parent_end = pipe_fds[0]; child_end = pipe_fds[1]; } else { parent_end = pipe_fds[1]; child_end = pipe_fds[0]; } proc_pid = ::fork (); if (proc_pid == 0) { gnulib::close (parent_end); if (child_end != child_std_end) { gnulib::dup2 (child_end, child_std_end); gnulib::close (child_end); } while (octave_procbuf_list) { FILE *fp = octave_procbuf_list->f; if (fp) { gnulib::fclose (fp); fp = 0; } octave_procbuf_list = octave_procbuf_list->next; } execl ("/bin/sh", "sh", "-c", command, static_cast<void *> (0)); exit (127); } gnulib::close (child_end); if (proc_pid < 0) { gnulib::close (parent_end); return 0; } f = ::fdopen (parent_end, (mode & std::ios::in) ? "r" : "w"); if (mode & std::ios::out) ::setvbuf (f, 0, _IOLBF, BUFSIZ); open_p = true; next = octave_procbuf_list; octave_procbuf_list = this; return this; #else return 0; #endif } octave_procbuf * octave_procbuf::close (void) { #if defined (__CYGWIN__) || defined (__MINGW32__) || defined (_MSC_VER) if (f) { wstatus = octave_pclose (f); f = 0; } open_p = false; return this; #elif defined (HAVE_SYS_WAIT_H) if (f) { pid_t wait_pid; int status = -1; for (octave_procbuf **ptr = &octave_procbuf_list; *ptr != 0; ptr = &(*ptr)->next) { if (*ptr == this) { *ptr = (*ptr)->next; status = 0; break; } } if (status == 0 && gnulib::fclose (f) == 0) { using namespace std; do { wait_pid = octave_syscalls::waitpid (proc_pid, &wstatus, 0); } while (wait_pid == -1 && errno == EINTR); } f = 0; } open_p = false; return this; #else return 0; #endif }