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osd-contiki/apps/shell/shell-time.c

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/*
* Copyright (c) 2008, 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
* A brief description of what this file is.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "sys/cc.h"
#include "shell-time.h"
#include "sys/clock.h"
#include "net/rime/timesynch.h"
#include "lib/random.h"
#include <stdio.h>
#include <string.h>
#define MAX_COMMANDLENGTH 64
#define PERIOD_INTERVAL 60
/*---------------------------------------------------------------------------*/
PROCESS(shell_time_process, "time");
SHELL_COMMAND(time_command,
"time",
"time [seconds]: output time in binary format, or set time in seconds since 1970",
&shell_time_process);
PROCESS(shell_timestamp_process, "timestamp");
SHELL_COMMAND(timestamp_command,
"timestamp",
"timestamp: prepend a timestamp to data",
&shell_timestamp_process);
PROCESS(shell_repeat_process, "repeat");
PROCESS(shell_repeat_server_process, "repeat server");
SHELL_COMMAND(repeat_command,
"repeat",
"repeat <num> <time> <command>: run a command every <time> seconds",
&shell_repeat_process);
PROCESS(shell_randwait_process, "randwait");
SHELL_COMMAND(randwait_command,
"randwait",
"randwait <maxtime> <command>: wait for a random time before running a command",
&shell_randwait_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_time_process, ev, data)
{
struct {
uint16_t len;
uint16_t clock;
uint16_t rtimer;
uint16_t timesynch;
uint16_t timesynch_authority;
uint16_t time[2];
} msg;
unsigned long newtime;
const char *nextptr;
PROCESS_BEGIN();
if(data != NULL) {
newtime = shell_strtolong(data, &nextptr);
if(data != nextptr) {
shell_set_time(newtime);
}
}
msg.clock = (uint16_t)clock_time();
msg.rtimer = (uint16_t)RTIMER_NOW();
#if TIMESYNCH_CONF_ENABLED
msg.timesynch = timesynch_time();
msg.timesynch_authority = timesynch_authority_level();
#else
msg.timesynch = 0;
msg.timesynch_authority = -1;
#endif
msg.time[0] = (uint16_t)(shell_time() >> 16);
msg.time[1] = (uint16_t)(shell_time());
msg.len = 6;
shell_output(&time_command, &msg, sizeof(msg), "", 0);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_timestamp_process, ev, data)
{
struct shell_input *input;
struct msg {
uint16_t len;
uint16_t time[2];
uint16_t timesynch;
uint8_t data[MAX_COMMANDLENGTH];
} msg;
PROCESS_BEGIN();
while(1) {
PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);
input = data;
if(input->len1 + input->len2 == 0) {
PROCESS_EXIT();
}
msg.len = 3 + *(uint16_t *)input->data1;
msg.time[0] = (uint16_t)(shell_time() >> 16);
msg.time[1] = (uint16_t)(shell_time());
#if TIMESYNCH_CONF_ENABLED
msg.timesynch = timesynch_time();
#else /* TIMESYNCH_CONF_ENABLED */
msg.timesynch = 0;
#endif /* TIMESYNCH_CONF_ENABLED */
memcpy(msg.data, input->data1 + 2,
input->len1 - 2 > MAX_COMMANDLENGTH?
MAX_COMMANDLENGTH: input->len1 - 2);
shell_output(&timestamp_command, &msg, 6 + input->len1,
input->data2, input->len2);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_repeat_server_process, ev, data)
{
static char *command;
static struct process *started_process;
char command_copy[MAX_COMMANDLENGTH];
if(ev == shell_event_input) {
goto exit;
}
PROCESS_BEGIN();
command = data;
PROCESS_WAIT_EVENT_UNTIL(ev == PROCESS_EVENT_CONTINUE &&
data == &shell_repeat_process);
{
strncpy(command_copy, command, MAX_COMMANDLENGTH);
shell_start_command(command_copy, (int)strlen(command_copy),
&repeat_command, &started_process);
if(started_process != NULL &&
process_is_running(started_process)) {
PROCESS_WAIT_EVENT_UNTIL(ev == PROCESS_EVENT_EXITED &&
data == started_process);
}
}
/* PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);
printf("haha \n");
if(repeat_command.child != NULL &&
process_is_running(repeat_command.child->process)) {
process_post_synch(repeat_command.child->process, ev, data);
}*/
exit:
;
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static void
repeat_print_usage(void)
{
shell_output_str(&repeat_command, "usage: ", repeat_command.description);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_repeat_process, ev, data)
{
static int reps, period;
static char command[MAX_COMMANDLENGTH];
static struct etimer etimer;
static int i;
const char *args, *next;
if(ev == shell_event_input) {
struct shell_input *input;
input = data;
/* printf("shell repeat input %d %d\n", input->len1, input->len2);*/
if(input->len1 + input->len2 != 0) {
shell_output(&repeat_command, input->data1, input->len1,
input->data2, input->len2);
}
}
PROCESS_BEGIN();
/* printf("data '%s'\n", data);*/
args = data;
if(args == NULL) {
repeat_print_usage();
PROCESS_EXIT();
}
reps = shell_strtolong(args, &next);
if(next == args) {
repeat_print_usage();
PROCESS_EXIT();
}
args = next;
period = shell_strtolong(args, &next);
if(next == args) {
repeat_print_usage();
PROCESS_EXIT();
}
args = next;
while(*args == ' ') {
args++;
}
strncpy(command, args, MAX_COMMANDLENGTH);
if(strlen(command) == 0) {
repeat_print_usage();
PROCESS_EXIT();
}
/* printf("repeats %d period %d command '%s'\n",
reps, period, command);*/
etimer_set(&etimer, CLOCK_SECOND * period);
for(i = 0; reps == 0 || i < reps; ++i) {
process_start(&shell_repeat_server_process, (void *)command);
process_post(&shell_repeat_server_process,
PROCESS_EVENT_CONTINUE,
&shell_repeat_process);
PROCESS_WAIT_UNTIL(ev == PROCESS_EVENT_EXITED &&
data == &shell_repeat_server_process);
PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
etimer_reset(&etimer);
/* PROCESS_PAUSE();
for(period_left = period;
period_left > 0;
period_left -= MIN(PERIOD_INTERVAL, period_left)) {
etimer_set(&etimer, CLOCK_SECOND * MIN(PERIOD_INTERVAL, period_left));
PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
}*/
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_randwait_process, ev, data)
{
static int maxwait;
static char command[MAX_COMMANDLENGTH];
static struct etimer etimer;
static struct process *started_process;
const char *args, *next;
/* if(ev == shell_event_input) {
struct shell_input *input;
input = data;
printf("shell randwait input %d %d\n", input->len1, input->len2);
if(input->len1 + input->len2 != 0) {
shell_output(&randwait_command, input->data1, input->len1,
input->data2, input->len2);
}
}*/
PROCESS_BEGIN();
args = data;
if(args == NULL) {
shell_output_str(&randwait_command, "usage 0", "");
PROCESS_EXIT();
}
maxwait = shell_strtolong(args, &next);
if(next == args) {
shell_output_str(&randwait_command, "usage 1", "");
PROCESS_EXIT();
}
args = next;
while(*args == ' ') {
args++;
}
strncpy(command, args, MAX_COMMANDLENGTH);
if(strlen(command) == 0) {
shell_output_str(&repeat_command, "usage 3", "");
PROCESS_EXIT();
}
/* printf("randwait %d command '%s'\n",
maxwait, command);*/
etimer_set(&etimer, random_rand() % (CLOCK_SECOND * maxwait));
PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
/* printf("Starting '%s' child %p (%s)\n", command, randwait_command.child, */
/* randwait_command.child == NULL? "null": randwait_command.child->command); */
shell_start_command(command, (int)strlen(command),
randwait_command.child, &started_process);
if(started_process != NULL &&
process_is_running(started_process)) {
PROCESS_WAIT_EVENT_UNTIL(ev == PROCESS_EVENT_EXITED &&
data == started_process);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_time_init(void)
{
shell_register_command(&time_command);
shell_register_command(&timestamp_command);
shell_register_command(&repeat_command);
shell_register_command(&randwait_command);
}
/*---------------------------------------------------------------------------*/
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