oncecontextm.nc

tinios的 源码

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/*
 * Authors:   Neil Patel
 * History:   Apr 11, 2003         Inception.
 *
 */

/**
 * @author Neil Patel
 */


includes AM;
includes Bombilla;

module OnceContextM {
  provides interface StdControl;
  uses {
    interface BombillaContextSynch as Synch;
    interface BombillaContextComm as Comm;
    interface BombillaVirus as Virus;
    interface BombillaAnalysis as Analysis;
  }
}

implementation {
  BombillaContext onceContext;

  command result_t StdControl.init() {
    onceContext.which = BOMB_CAPSULE_ONCE;
    onceContext.currentCapsule = &onceContext.rootCapsule;
    onceContext.state = BOMB_STATE_HALT;
    onceContext.rootCapsule.capsule.type = onceContext.which;
    onceContext.rootCapsule.capsule.type |= BOMB_OPTION_FORWARD;
        
    call Virus.registerCapsule(onceContext.rootCapsule.capsule.type,
                               &onceContext.rootCapsule.capsule);

    onceContext.rootCapsule.capsule.options = 0;
    onceContext.rootCapsule.capsule.version = 0;
    
    call Analysis.analyzeCapsuleVars(&onceContext.rootCapsule);
    call Comm.registerCapsule(&onceContext.rootCapsule);
    return SUCCESS;
  }

  command result_t StdControl.start() {
    return SUCCESS;
  }

  command result_t StdControl.stop() {
    return SUCCESS;
  }

  event result_t Comm.analyzeLockSets(BombillaCapsuleBuffer* capsules[]) {
    return SUCCESS;
  }

  event result_t Synch.makeRunnable(BombillaContext* context) {
    return SUCCESS;
  }
  
  event result_t Virus.capsuleInstalled(BombillaCapsule* capsule) {
    call Synch.initializeContext(&onceContext);
    if (capsule->type == (BOMB_CAPSULE_ONCE | BOMB_OPTION_FORWARD)) {
      dbg(DBG_USR1, "VM: Installing onceContext Capsule. \n");
      onceContext.rootCapsule.capsule = *capsule;
      call Analysis.analyzeCapsuleVars(&onceContext.rootCapsule);
      call Comm.reboot();

      call Synch.initializeContext(&onceContext);
      call Synch.resumeContext(&onceContext, &onceContext);
    }    
    return SUCCESS;
  }

  event result_t Virus.enableExecution() {
    return SUCCESS;
  }

  event result_t Virus.disableExecution() {
    return SUCCESS;
  }

  event result_t Virus.capsuleHeard(uint8_t type) {
    return SUCCESS;
  }

  event void Virus.capsuleForce(uint8_t type) {
    return;
  }
}