Mercurial > octave-nkf
view liboctave/util/oct-shlib.h @ 20651:e54ecb33727e
lo-array-gripes.cc: Remove FIXME's related to buffer size.
* lo-array-gripes.cc: Remove FIXME's related to buffer size. Shorten sprintf
buffers from 100 to 64 characters (still well more than 19 required).
Use 'const' decorator on constant value for clarity. Remove extra space
between variable and array bracket.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 12 Oct 2015 21:13:47 -0700 |
parents | 1f9ed81bd173 |
children |
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/* Copyright (C) 1999-2015 John W. Eaton Copyright (C) 2009 VZLU Prague 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/>. */ #if !defined (octave_oct_shlib_h) #define octave_oct_shlib_h 1 #include <string> #include <map> #include "oct-time.h" #include "oct-refcount.h" class OCTAVE_API octave_shlib { public: // FIXME: make this class private? typedef std::string (*name_mangler) (const std::string&); typedef void (*close_hook) (const std::string&); class shlib_rep { public: shlib_rep (void) : count (1), file (), tm_loaded (time_t ()), fcn_names () { } protected: shlib_rep (const std::string& f); public: virtual ~shlib_rep (void) { instances.erase (file); } virtual bool is_open (void) const { return false; } virtual void *search (const std::string&, name_mangler = 0) { return 0; } bool is_out_of_date (void) const; // This method will be overridden conditionally. static shlib_rep *new_instance (const std::string& f); static shlib_rep *get_instance (const std::string& f, bool fake); octave_time time_loaded (void) const { return tm_loaded; } std::string file_name (void) const { return file; } size_t num_fcn_names (void) const { return fcn_names.size (); } void add_fcn_name (const std::string&); bool remove_fcn_name (const std::string&); void do_close_hook (close_hook cl_hook); public: octave_refcount<int> count; protected: void fake_reload (void); std::string file; octave_time tm_loaded; // Set of hooked function names. typedef std::map<std::string, size_t>::iterator fcn_names_iterator; typedef std::map<std::string, size_t>::const_iterator fcn_names_const_iterator; std::map<std::string, size_t> fcn_names; static std::map<std::string, shlib_rep *> instances; }; private: static shlib_rep nil_rep; public: octave_shlib (void) : rep (&nil_rep) { rep->count++; } octave_shlib (const std::string& f, bool fake = true) : rep (shlib_rep::get_instance (f, fake)) { } ~octave_shlib (void) { if (--rep->count == 0) delete rep; } octave_shlib (const octave_shlib& sl) : rep (sl.rep) { rep->count++; } octave_shlib& operator = (const octave_shlib& sl) { if (rep != sl.rep) { if (--rep->count == 0) delete rep; rep = sl.rep; rep->count++; } return *this; } bool operator == (const octave_shlib& sl) const { return (rep == sl.rep); } operator bool () const { return rep->is_open (); } void open (const std::string& f) { *this = octave_shlib (f); } void close (close_hook cl_hook = 0) { if (cl_hook) rep->do_close_hook (cl_hook); *this = octave_shlib (); } void *search (const std::string& nm, name_mangler mangler = 0) const { void *f = rep->search (nm, mangler); if (f) rep->add_fcn_name (nm); return f; } void add (const std::string& name) { rep->add_fcn_name (name); } bool remove (const std::string& name) { return rep->remove_fcn_name (name); } size_t number_of_functions_loaded (void) const { return rep->num_fcn_names (); } bool is_out_of_date (void) const { return rep->is_out_of_date (); } std::string file_name (void) const { return rep->file_name (); } octave_time time_loaded (void) const { return rep->time_loaded (); } private: shlib_rep *rep; }; #endif