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- /* Copyright (C) 2014 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 Lesser 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- /*
- * shim_benchmark.c
- *
- * Implementation of system call "benchmark_ipc", "send_rpc" and "recv_rpc".
- * (These system calls are added for benchmarking purpose.)
- */
- #include <errno.h>
- #include <shim_internal.h>
- #include <shim_ipc.h>
- #include <shim_profile.h>
- #include <shim_table.h>
- #include <shim_unistd.h>
- 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;
- }
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