179 lines
6.7 KiB
C
179 lines
6.7 KiB
C
/*
|
|
* Copyright (c) 2006, 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.
|
|
*
|
|
* $Id: mantis_template.c,v 1.1 2006/11/09 19:32:53 fros4943 Exp $
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* C code template for generating Mantis source code files from COOJA
|
|
* Simulator. This file should not be compiled directly.
|
|
* \author
|
|
* Fredrik Osterlind <fros@sics.se>
|
|
*/
|
|
|
|
#include <jni.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <pthread.h>
|
|
#include "mos.h"
|
|
#include "sem.h"
|
|
#include "msched.h"
|
|
|
|
extern int main(); /* in mantis/src/mos/sys/main.c */
|
|
extern uint32_t cooja_time; /* in mantis/src/mos/sys/main.c */
|
|
extern pthread_cond_t cooja_cv; /* in mantis/src/mos/sys/main.c */
|
|
extern mos_thread_t threads[MAX_THREADS]; /* in mantis/src/mos/sys/main.c */
|
|
|
|
/*
|
|
* referenceVar is used for comparing absolute and process relative memory.
|
|
* (this must not be static due to memory locations)
|
|
*/
|
|
int referenceVar;
|
|
|
|
int dataVar = 1;
|
|
int i;
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Initialize a mote by starting processes etc.
|
|
*
|
|
* This function initializes a mote by starting certain
|
|
* processes and setting up the environment.
|
|
*
|
|
* This is a JNI function and should only be called via the
|
|
* responsible Java part (MoteType.java).
|
|
*/
|
|
JNIEXPORT void JNICALL
|
|
Java_se_sics_cooja_corecomm_[CLASS_NAME]_init(JNIEnv *env, jobject obj)
|
|
{
|
|
main();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Get a segment from the process memory.
|
|
* \param start Start address of segment
|
|
* \param length Size of memory segment
|
|
* \return Java byte array containing a copy of memory segment.
|
|
*
|
|
* Fetches a memory segment from the process memory starting at
|
|
* (start), with size (length). This function does not perform
|
|
* ANY error checking, and the process may crash if addresses are
|
|
* not available/readable.
|
|
*
|
|
* This is a JNI function and should only be called via the
|
|
* responsible Java part (MoteType.java).
|
|
*/
|
|
JNIEXPORT void JNICALL
|
|
Java_se_sics_cooja_corecomm_[CLASS_NAME]_getMemory(JNIEnv *env, jobject obj, jint start, jint length, jbyteArray mem_arr)
|
|
{
|
|
(*env)->SetByteArrayRegion(env, mem_arr, 0, (size_t) length, (jbyte *) start);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Replace a segment of the process memory with given byte array.
|
|
* \param start Start address of segment
|
|
* \param length Size of memory segment
|
|
* \param mem_arr Byte array contaning new memory
|
|
*
|
|
* Replaces a process memory segment with given byte array.
|
|
* This function does not perform ANY error checking, and the
|
|
* process may crash if addresses are not available/writable.
|
|
*
|
|
* This is a JNI function and should only be called via the
|
|
* responsible Java part (MoteType.java).
|
|
*/
|
|
JNIEXPORT void JNICALL
|
|
Java_se_sics_cooja_corecomm_[CLASS_NAME]_setMemory(JNIEnv *env, jobject obj, jint start, jint length, jbyteArray mem_arr)
|
|
{
|
|
jbyte *mem = (*env)->GetByteArrayElements(env, mem_arr, 0);
|
|
memcpy((void *) start, mem, length);
|
|
(*env)->ReleaseByteArrayElements(env, mem_arr, mem, 0);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Let mote execute one "block" of code (tick mote).
|
|
*
|
|
* This is a JNI function and should only be called via the
|
|
* responsible Java part (MoteType.java).
|
|
*/
|
|
JNIEXPORT void JNICALL
|
|
Java_se_sics_cooja_corecomm_[CLASS_NAME]_tick(JNIEnv *env, jobject obj)
|
|
{
|
|
int readyexist = 0;
|
|
|
|
/* Ugly hack, setting all ready threads to BLOCKED just to discover which ones wake up */
|
|
for(i=0; i<MAX_THREADS; i++) {
|
|
if (threads[i].state == READY) {
|
|
threads[i].state = BLOCKED;
|
|
}
|
|
}
|
|
|
|
cooja_time += 1; // increase time
|
|
//printf("CORE> tick, time is now %i\n", cooja_time);
|
|
|
|
/* Signal all threads to start working again */
|
|
for(i=0; i<MAX_THREADS; i++) {
|
|
if (threads[i].state == BLOCKED) {
|
|
mos_thread_resume(&threads[i]);
|
|
}
|
|
}
|
|
|
|
/* Wait until all threads are blocked again. ??!?!!
|
|
* For now we just assume all threads will be done within 1ms. */
|
|
do {
|
|
readyexist=0;
|
|
for(i=0; i<MAX_THREADS; i++) {
|
|
if (threads[i].state == READY) {
|
|
readyexist = 1;
|
|
//printf("waiting until thread finished...: %p\n", &threads[i]);
|
|
//fflush(stdout);
|
|
usleep(1);
|
|
}
|
|
}
|
|
} while (readyexist);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Get the absolute memory address of a special variable.
|
|
* \return Absolute memory address.
|
|
*
|
|
* Returns the absolute memory address of a special variable
|
|
* "referenceVar". By comparing this address with the relative
|
|
* address (from the map file) for referenceVar, an runtime offset
|
|
* can be calculated.
|
|
*
|
|
* This is a JNI function and should only be called via the
|
|
* responsible Java part (MoteType.java).
|
|
*/
|
|
JNIEXPORT jint JNICALL
|
|
Java_se_sics_cooja_corecomm_[CLASS_NAME]_getReferenceAbsAddr(JNIEnv *env, jobject obj)
|
|
{
|
|
return (jint) &referenceVar;
|
|
}
|