//
// aegis - project change supervisor
// Copyright (C) 2002-2006, 2008, 2014 Peter Miller
//
// This program 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.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
//

#include <libaegis/input.h>
#include <common/str.h>


bool
input::read_strict(void *buf, size_t len)
{
    long asked = len;
    long got = 0;
    while (len > 0)
    {
        long result = read(buf, len);
        if (result <= 0)
        {
            if (got == 0)
                return false;
            nstring s =
                nstring::format("short read (asked %ld, got %ld)", asked, got);
            fatal_error(s.c_str());
        }
        len -= result;
        got += result;
        buf = (char *)buf + result;
    }
    return true;
}


// vim: set ts=8 sw=4 et :