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construct/ircd/exception.cc
Jason Volk 61b517ca3c Precompile and remove most include directives. Notes:
* To benefit from the precompiled-header (PCH) it MUST provide "the first C token."

Advantages:
Never worry about the include stack again. Remember, this means one less thing
for random module developers, community people learning C++, and new developers
to deal with. It should reduce the learning curve and barrier for participation.

Disadvantages:
Makes overall compilation a bit slower, especially without any additional
work to improve it again. There are several opportunities, places where the
PCH is probably being ignored, etc that can be addressed.
2016-08-20 19:30:33 -07:00

50 lines
1.7 KiB
C++

/*
* charybdis: 21st Century IRCd
* exception.cc: Exception root
*
* Copyright (C) 2016 Charybdis Development Team
* Copyright (C) 2016 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
using namespace ircd;
ssize_t
exception::generate(const char *const &fmt,
va_list ap)
noexcept
{
return vsnprintf(buf, sizeof(buf), fmt, ap);
}
ssize_t
exception::generate(const char *const &name,
const char *const &fmt,
va_list ap)
noexcept
{
size_t size(0);
const bool empty(!fmt || !fmt[0] || fmt[0] == ' ');
size = rb_strlcpy(buf, name, sizeof(buf));
size = rb_strlcat(buf, empty? "." : ": ", sizeof(buf));
if(size < sizeof(buf))
size += vsnprintf(buf + size, sizeof(buf) - size, fmt, ap);
return size;
}