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108 lines
3.6 KiB
C
108 lines
3.6 KiB
C
/*
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* Copyright (c) 2009, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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#include "contiki.h"
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#include "shell.h"
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#include "cfs/cfs.h"
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#include "cfs/cfs-coffee.h"
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#include "lib/checkpoint.h"
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#include <stdio.h>
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_checkpoint_process, "checkpoint");
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SHELL_COMMAND(checkpoint_command,
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"checkpoint",
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"checkpoint <filename>: checkpoint local state to file",
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&shell_checkpoint_process);
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PROCESS(shell_rollback_process, "rollback");
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SHELL_COMMAND(rollback_command,
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"rollback",
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"rollback <filename>: rollback local state from file",
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&shell_rollback_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_checkpoint_process, ev, data)
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{
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int fd = 0;
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PROCESS_BEGIN();
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/* Make sure file does not already exist */
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cfs_remove(data);
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cfs_coffee_reserve(data, checkpoint_arch_size());
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fd = cfs_open(data, CFS_WRITE);
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if(fd < 0) {
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shell_output_str(&checkpoint_command,
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"checkpoint: could not open file for writing: ", data);
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} else {
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shell_output_str(&checkpoint_command, "checkpoint to: ", data);
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checkpoint_checkpoint(fd);
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cfs_close(fd);
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shell_output_str(&checkpoint_command, "checkpointing done", "");
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_rollback_process, ev, data)
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{
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int fd = 0;
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PROCESS_BEGIN();
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fd = cfs_open(data, CFS_READ);
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if(fd < 0) {
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shell_output_str(&rollback_command,
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"rollback: could not open file for reading: ", data);
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} else {
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shell_output_str(&rollback_command, "rollback from: ", data);
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checkpoint_rollback(fd);
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cfs_close(fd);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_checkpoint_init(void)
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{
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checkpoint_init();
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shell_register_command(&checkpoint_command);
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shell_register_command(&rollback_command);
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}
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/*---------------------------------------------------------------------------*/
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