/usr/include/octave-4.2.2/octave/unwind-prot.h is in liboctave-dev 4.2.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | /*
Copyright (C) 1993-2017 John W. Eaton
Copyright (C) 2009-2010 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_unwind_prot_h)
#define octave_unwind_prot_h 1
#include "octave-config.h"
#include <cstddef>
#include <stack>
#include <memory>
#include "action-container.h"
namespace octave
{
class
OCTAVE_API
unwind_protect : public action_container
{
public:
unwind_protect (void) : lifo () { }
// Destructor should not raise an exception, so all actions
// registered should be exception-safe. If you're not sure, see
// unwind_protect_safe.
~unwind_protect (void) { run (); }
virtual void add (elem *new_elem)
{
lifo.push (new_elem);
}
OCTAVE_DEPRECATED ("use 'add (new fcn_arg_elem<void *> (fcn, ptr))' instead")
void add (void (*fcn) (void *), void *ptr = 0)
{
add (new fcn_arg_elem<void *> (fcn, ptr));
}
operator bool (void) const { return ! empty (); }
OCTAVE_DEPRECATED ("use 'run_first' instead")
void run_top (void) { run_first (); }
void run_first (void)
{
if (! empty ())
{
// No leak on exception!
std::unique_ptr<elem> ptr (lifo.top ());
lifo.pop ();
ptr->run ();
}
}
OCTAVE_DEPRECATED ("use 'run' instead")
void run_top (int num) { run (num); }
OCTAVE_DEPRECATED ("use 'discard_first' instead")
void discard_top (void) { discard_first (); }
void discard_first (void)
{
if (! empty ())
{
elem *ptr = lifo.top ();
lifo.pop ();
delete ptr;
}
}
OCTAVE_DEPRECATED ("use 'discard' instead")
void discard_top (int num) { discard (num); }
size_t size (void) const { return lifo.size (); }
protected:
std::stack<elem *> lifo;
private:
// No copying!
unwind_protect (const unwind_protect&);
unwind_protect& operator = (const unwind_protect&);
};
// Like unwind_protect, but this one will guard against the possibility
// of seeing an exception (or interrupt) in the cleanup actions.
// Not that we can do much about it, but at least we won't crash.
class
OCTAVE_API
unwind_protect_safe : public unwind_protect
{
private:
void warn_unhandled_exception (void) const;
public:
unwind_protect_safe (void) : unwind_protect () { }
~unwind_protect_safe (void)
{
while (! empty ())
{
try
{
run_first ();
}
catch (...) // Yes, the black hole. Remember we're in a destructor.
{
warn_unhandled_exception ();
}
}
}
private:
// No copying!
unwind_protect_safe (const unwind_protect_safe&);
unwind_protect_safe& operator = (const unwind_protect_safe&);
};
}
#if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
OCTAVE_DEPRECATED ("use 'octave::unwind_protect' instead")
typedef octave::unwind_protect unwind_protect;
OCTAVE_DEPRECATED ("use 'octave::unwind_protect_safe' instead")
typedef octave::unwind_protect_safe unwind_protect_safe;
#endif
#endif
|