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construct/ircd/vm.cc

87 lines
2.2 KiB
C++

/*
* 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.
*/
namespace ircd {
} // namespace ircd
void
ircd::vm::execute(client &client,
const uint8_t *const &ptr,
const size_t &len)
{
execute(client, line(ptr, len));
}
void
ircd::vm::execute(client &client,
const std::string &l)
{
execute(client, line(l));
}
void
ircd::vm::execute(client &client,
tape &reel)
{
context([wp(weak_from(client)), &client, &reel]
{
// Hold the client for the lifetime of this context
const lifeguard<struct client> lg(wp);
while(!reel.empty()) try
{
auto &line(reel.front());
const scope pop([&reel]
{
reel.pop_front();
});
if(line.empty())
continue;
auto &handle(cmds::find(command(line)));
handle(client, std::move(line));
}
catch(const std::exception &e)
{
log::error("vm: %s", e.what());
disconnect(client);
finished(client);
return;
}
recv_next(client);
},
ctx::SELF_DESTRUCT);
}
void
ircd::vm::execute(client &client,
line line)
{
if(line.empty())
return;
auto &handle(cmds::find(command(line)));
handle(client, std::move(line));
}