/* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
/* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
/* Copyright (C) 2014 OSCAR lab, Stony Brook University
This file is part of Graphene Library OS.
Graphene Library OS 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.
Graphene Library OS 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 . */
/*
* shim_benchmark.c
*
* Implementation of system call "benchmark_ipc", "send_rpc" and "recv_rpc".
* (These system calls are added for benchmarking purpose.)
*/
#include
#include
#include
#include
#include
#include
int get_pid_port (IDTYPE pid, IDTYPE * dest, struct shim_ipc_port ** port);
int shim_do_benchmark_rpc (pid_t pid, int times, const void * buf,
size_t size)
{
INC_PROFILE_OCCURENCE(syscall_use_ipc);
int ret = 0;
IDTYPE dest;
struct shim_ipc_port * port = NULL;
if ((ret = get_pid_port(pid, &dest, &port)) < 0)
return ret;
ret = ipc_pid_nop_send(port, dest, times, buf, size);
put_ipc_port(port);
return ret;
}
size_t shim_do_send_rpc (pid_t pid, const void * buf, size_t size)
{
return ipc_pid_sendrpc_send(pid, get_cur_tid(), buf, size);
}
int get_rpc_msg (IDTYPE * sender, void * buf, int len);
size_t shim_do_recv_rpc (pid_t * pid, void * buf, size_t size)
{
IDTYPE sender;
int ret = get_rpc_msg(&sender, buf, size);
if (ret < 0)
return ret;
if (pid)
*pid = sender;
return ret;
}