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added experimental checkpointing functionality:

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currently only implemented on the sky platform
This commit is contained in:
fros4943 2009-02-04 17:49:15 +00:00
parent fda75c4c08
commit bf39076206
6 changed files with 270 additions and 2 deletions
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3
apps/shell/Makefile.shell
View file

@ -4,7 +4,8 @@ shell_src = shell.c shell-reboot.c \
shell-file.c shell-netfile.c shell-run.c \
shell-rime-ping.c shell-rime-sniff.c shell-rime-netcmd.c \
shell-rime-debug.c shell-coffee.c \
shell-wget.c shell-httpd.c shell-irc.c
shell-wget.c shell-httpd.c shell-irc.c \
shell-checkpoint.c
#shell-rsh.c
shell_dsc = shell-dsc.c

107
apps/shell/shell-checkpoint.c Normal file
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@ -0,0 +1,107 @@
/*
* Copyright (c) 2009, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*
* This file is part of the Contiki operating system.
*
* $Id: shell-checkpoint.c,v 1.1 2009/02/04 17:49:15 fros4943 Exp $
*/
#include "contiki.h"
#include "shell.h"
#include "cfs/cfs.h"
#include "cfs/cfs-coffee.h"
#include "lib/checkpoint.h"
#include <stdio.h>
/*---------------------------------------------------------------------------*/
PROCESS(shell_checkpoint_process, "checkpoint");
SHELL_COMMAND(checkpoint_command,
"checkpoint",
"checkpoint <filename>: checkpoint local state to file",
&shell_checkpoint_process);
PROCESS(shell_rollback_process, "rollback");
SHELL_COMMAND(rollback_command,
"rollback",
"rollback <filename>: rollback local state from file",
&shell_rollback_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_checkpoint_process, ev, data)
{
int fd = 0;
PROCESS_BEGIN();
/* Make sure file does not already exist */
cfs_remove(data);
cfs_coffee_reserve(data, checkpoint_arch_size());
fd = cfs_open(data, CFS_WRITE);
if(fd < 0) {
shell_output_str(&checkpoint_command,
"checkpoint: could not open file for writing: ", data);
} else {
shell_output_str(&rollback_command, "checkpoint to: ", data);
checkpoint_checkpoint(fd);
cfs_close(fd);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_rollback_process, ev, data)
{
int fd = 0;
PROCESS_BEGIN();
fd = cfs_open(data, CFS_READ);
if(fd < 0) {
shell_output_str(&rollback_command,
"rollback: could not open file for reading: ", data);
} else {
shell_output_str(&rollback_command, "rollback from: ", data);
checkpoint_rollback(fd);
cfs_close(fd);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_checkpoint_init(void)
{
checkpoint_init();
shell_register_command(&checkpoint_command);
shell_register_command(&rollback_command);
}
/*---------------------------------------------------------------------------*/

41
apps/shell/shell-checkpoint.h Normal file
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@ -0,0 +1,41 @@
/*
* Copyright (c) 2009, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*
* This file is part of the Contiki operating system.
*
* $Id: shell-checkpoint.h,v 1.1 2009/02/04 17:49:15 fros4943 Exp $
*/
#ifndef __SHELL_CHECKPOINT_H__
#define __SHELL_CHECKPOINT_H__
#include "shell.h"
void shell_checkpoint_init(void);
#endif /* __SHELL_CHECKPOINT_H__ */

3
apps/shell/shell.h
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: shell.h,v 1.10 2008/11/09 12:38:02 adamdunkels Exp $
* $Id: shell.h,v 1.11 2009/02/04 17:49:15 fros4943 Exp $
*/
/**
@ -101,6 +101,7 @@ struct shell_input {
#include "shell-blink.h"
#include "shell-coffee.h"
#include "shell-checkpoint.h"
#include "shell-exec.h"
#include "shell-file.h"
#include "shell-httpd.h"

59
core/lib/checkpoint.c Normal file
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@ -0,0 +1,59 @@
/*
* Copyright (c) 2009, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* Checkpoint library.
* \author
* Fredrik Osterlind <fros@sics.se>
*/
#include "lib/checkpoint.h"
/*---------------------------------------------------------------------------*/
void
checkpoint_init(void)
{
checkpoint_arch_init();
}
/*---------------------------------------------------------------------------*/
void
checkpoint_checkpoint(int fd)
{
checkpoint_arch_checkpoint(fd);
}
/*---------------------------------------------------------------------------*/
void
checkpoint_rollback(int fd)
{
checkpoint_arch_rollback(fd);
}

59
core/lib/checkpoint.h Normal file
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@ -0,0 +1,59 @@
/*
* Copyright (c) 2009, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* Checkpoint library header.
* \author
* Fredrik Osterlind <fros@sics.se>
*/
#ifndef CHECKPOINT_H
#define CHECKPOINT_H
#include "contiki.h"
void checkpoint_init(void);
void checkpoint_checkpoint(int fd);
void checkpoint_rollback(int fd);
void checkpoint_arch_init(void);
void checkpoint_arch_checkpoint(int fd);
void checkpoint_arch_rollback(int fd);
int checkpoint_arch_size();
#endif /* CHECKPOINT_H */