LegacyBarrier.cpp

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#include <sstream>
 
#include "LegacyBarrier.h"
#include "madara/knowledge/ContextGuard.h"
#include "madara/logger/GlobalLogger.h"
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(
    const KnowledgeUpdateSettings& settings)
  : BaseContainer("", settings), context_(0), id_(0), participants_(1)
{
  init_noharm();
}
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(const std::string& name,
    KnowledgeBase& knowledge, const KnowledgeUpdateSettings& settings)
  : BaseContainer(name, settings),
    context_(&(knowledge.get_context())),
    id_(0),
    participants_(1)
{
  init_noharm();
  build_var();
  build_aggregate_barrier();
}
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(const std::string& name,
    Variables& knowledge, const KnowledgeUpdateSettings& settings)
  : BaseContainer(name, settings),
    context_(knowledge.get_context()),
    id_(0),
    participants_(1)
{
  init_noharm();
  build_var();
  build_aggregate_barrier();
}
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(const std::string& name,
    KnowledgeBase& knowledge, int id, int participants,
    const KnowledgeUpdateSettings& settings)
  : BaseContainer(name, settings),
    context_(&(knowledge.get_context())),
    id_(id),
    participants_(participants)
{
  init_noharm();
  build_var();
  build_aggregate_barrier();
}
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(const std::string& name,
    Variables& knowledge, int id, int participants,
    const KnowledgeUpdateSettings& settings)
  : BaseContainer(name, settings),
    context_(knowledge.get_context()),
    id_(id),
    participants_(participants)
{
  init_noharm();
  build_var();
  build_aggregate_barrier();
}
 
madara::knowledge::containers::LegacyBarrier::LegacyBarrier(const LegacyBarrier& rhs)
  : BaseContainer(rhs),
    context_(rhs.context_),
    variable_(rhs.variable_),
    id_(rhs.id_),
    participants_(rhs.participants_),
#ifndef _MADARA_NO_KARL_
    aggregate_barrier_(rhs.aggregate_barrier_),
#endif
    variable_name_(rhs.variable_name_)
{
}
 
madara::knowledge::containers::LegacyBarrier::~LegacyBarrier() {}
 
void madara::knowledge::containers::LegacyBarrier::operator=(const LegacyBarrier& rhs)
{
  if (this != &rhs)
  {
    MADARA_GUARD_TYPE guard(mutex_), guard2(rhs.mutex_);
 
    this->context_ = rhs.context_;
    this->name_ = rhs.name_;
    this->id_ = rhs.id_;
    this->participants_ = rhs.participants_;
    this->settings_ = rhs.settings_;
    this->variable_ = rhs.variable_;
#ifndef _MADARA_NO_KARL_
    this->aggregate_barrier_ = rhs.aggregate_barrier_;
#endif
    this->variable_name_ = rhs.variable_name_;
  }
}
 
void madara::knowledge::containers::LegacyBarrier::build_aggregate_barrier(void)
{
  if (context_ && name_ != "")
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
 
    std::stringstream buffer;
    if (participants_ > 0)
    {
      // barrier logic is that everyone else is at least to your barrier
      buffer << name_;
      buffer << ".0 >= ";
      buffer << name_;
      buffer << ".";
      buffer << id_;
 
      // add all other barrierer variables
      for (size_t i = 1; i < participants_; ++i)
      {
        buffer << " && ";
        buffer << name_;
        buffer << ".";
        buffer << i;
        buffer << " >= ";
        buffer << name_;
        buffer << ".";
        buffer << id_;
      }
    }
 
#ifndef _MADARA_NO_KARL_
    aggregate_barrier_ = context_->compile(buffer.str());
#endif
 
    madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
        "LegacyBarrier::build_aggregate_barrier: building barrier string of %s\n",
        buffer.str().c_str());
  }
  else if (name_ == "")
  {
    context_->print("ERROR: containers::LegacyBarrier needs a name.\n", 0);
  }
  else if (!context_)
  {
    logger::global_logger->log(
      logger::LOG_ERROR, "ERROR: containers::LegacyBarrier needs a context.\n");
  }
}
 
void madara::knowledge::containers::LegacyBarrier::build_var(void)
{
  if (context_ && name_ != "")
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
 
    std::stringstream buffer;
 
    buffer << name_;
    buffer << ".";
    buffer << id_;
 
    variable_name_ = buffer.str();
 
    madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
        "LegacyBarrier::build_var: settings variable reference to %s\n",
        variable_name_.c_str());
 
    variable_ = context_->get_ref(buffer.str(), no_harm);
  }
  else if (name_ == "")
  {
    context_->print("ERROR: Container::LegacyBarrier needs a name.\n", 0);
  }
  else if (!context_)
  {
    logger::global_logger->log(
      logger::LOG_ERROR, "ERROR: containers::LegacyBarrier needs a context.\n");
  }
}
 
void madara::knowledge::containers::LegacyBarrier::init_noharm(void)
{
  no_harm.always_overwrite = false;
  no_harm.delay_sending_modifieds = true;
  no_harm.expand_variables = false;
  no_harm.signal_changes = false;
  no_harm.track_local_changes = false;
  no_harm.treat_globals_as_locals = true;
}
 
size_t madara::knowledge::containers::LegacyBarrier::get_id(void) const
{
  MADARA_GUARD_TYPE guard(mutex_);
  return id_;
}
 
size_t madara::knowledge::containers::LegacyBarrier::get_participants(void) const
{
  MADARA_GUARD_TYPE guard(mutex_);
  return participants_;
}
 
void madara::knowledge::containers::LegacyBarrier::set_name(
    const std::string& var_name, KnowledgeBase& knowledge, int id,
    int participants)
{
  KnowledgeUpdateSettings keep_local(true);
  context_ = &(knowledge.get_context());
 
  ContextGuard context_guard(*context_);
  MADARA_GUARD_TYPE guard(mutex_);
 
  name_ = var_name;
  id_ = id;
  participants_ = participants;
 
  this->build_var();
  this->build_aggregate_barrier();
}
 
void madara::knowledge::containers::LegacyBarrier::set_name(
    const std::string& var_name, Variables& knowledge, int id, int participants)
{
  KnowledgeUpdateSettings keep_local(true);
  context_ = knowledge.get_context();
 
  ContextGuard context_guard(*context_);
  MADARA_GUARD_TYPE guard(mutex_);
 
  name_ = var_name;
  id_ = id;
  participants_ = participants;
 
  this->build_var();
  this->build_aggregate_barrier();
}
 
void madara::knowledge::containers::LegacyBarrier::set_name(
    const std::string& var_name, ThreadSafeContext& knowledge, int id,
    int participants)
{
  KnowledgeUpdateSettings keep_local(true);
  context_ = &knowledge;
 
  ContextGuard context_guard(*context_);
  MADARA_GUARD_TYPE guard(mutex_);
 
  name_ = var_name;
  id_ = id;
  participants_ = participants;
 
  this->build_var();
  this->build_aggregate_barrier();
}
 
void madara::knowledge::containers::LegacyBarrier::resize(
    size_t id, size_t participants)
{
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
 
    id_ = id;
    participants_ = participants;
 
    this->build_var();
    this->build_aggregate_barrier();
  }
}
 
madara::knowledge::containers::LegacyBarrier::type
madara::knowledge::containers::LegacyBarrier::operator=(type value)
{
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    context_->set(variable_, value, settings_);
  }
 
  return value;
}
 
madara::knowledge::KnowledgeRecord
madara::knowledge::containers::LegacyBarrier::to_record(void) const
{
  madara::knowledge::KnowledgeRecord result;
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    result = context_->get(variable_, no_harm);
  }
 
  return result;
}
 
madara::knowledge::KnowledgeRecord::Integer
madara::knowledge::containers::LegacyBarrier::to_integer(void) const
{
  madara::knowledge::KnowledgeRecord::Integer result(0);
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    result = context_->get(variable_, no_harm).to_integer();
  }
 
  return result;
}
 
void madara::knowledge::containers::LegacyBarrier::next(void)
{
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    context_->inc(variable_, settings_);
  }
}
 
bool madara::knowledge::containers::LegacyBarrier::is_done(void)
{
  bool result = false;
 
  if (context_ && name_ != "")
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
 
    madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
        "LegacyBarrier::is_done: checking barrier result for done\n");
 
    result = barrier_result() == 1;
 
    if (!result)
    {
      madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
          "LegacyBarrier::is_true: barrier is not true, remarking barrier "
          "variable\n");
 
      context_->mark_modified(variable_);
 
      context_->print(logger::LOG_DETAILED);
    }
    else
    {
      madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
          "LegacyBarrier::is_true: barrier is true\n");
    }
  }
 
  return result;
}
 
void madara::knowledge::containers::LegacyBarrier::set(type value)
{
  if (context_ && name_ != "")
  {
    context_->set(variable_, value, settings_);
  }
}
 
void madara::knowledge::containers::LegacyBarrier::modify(void)
{
  if (context_ && name_ != "")
  {
    context_->mark_modified(variable_);
  }
}
 
std::string madara::knowledge::containers::LegacyBarrier::get_debug_info(void)
{
  std::stringstream result;
 
  result << "LegacyBarrier: ";
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
 
    result << this->name_;
    result << " = " << context_->get(variable_).to_string() << "\n";
 
    std::string prefix = name_ + ".";
 
    // add all other barrierer variables
    for (size_t i = 0; i < participants_; ++i)
    {
      std::stringstream temp_buffer;
      temp_buffer << prefix;
      temp_buffer << i;
 
      std::string this_var = temp_buffer.str();
 
      result << "  " << this_var;
      result << "={";
      result << this_var;
      result << "}\n";
    }
  }
 
  return result.str();
}
 
void madara::knowledge::containers::LegacyBarrier::modify_(void)
{
  modify();
}
 
std::string madara::knowledge::containers::LegacyBarrier::get_debug_info_(void)
{
  return get_debug_info();
}
 
madara::knowledge::containers::BaseContainer*
madara::knowledge::containers::LegacyBarrier::clone(void) const
{
  return new LegacyBarrier(*this);
}
 
double madara::knowledge::containers::LegacyBarrier::to_double(void) const
{
  double result(0.0);
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    result = context_->get(variable_, no_harm).to_double();
  }
 
  return result;
}
 
std::string madara::knowledge::containers::LegacyBarrier::to_string(void) const
{
  std::string result;
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    result = context_->get(variable_, no_harm).to_string();
  }
 
  return result;
}
 
void madara::knowledge::containers::LegacyBarrier::set_quality(
    uint32_t quality, const KnowledgeReferenceSettings& settings)
{
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    context_->set_quality(name_, quality, true, settings);
  }
}
 
bool madara::knowledge::containers::LegacyBarrier::is_true(void) const
{
  bool result(false);
 
  madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
      "LegacyBarrier::is_true: checking barrier result for truth\n");
 
  if (context_)
  {
    ContextGuard context_guard(*context_);
    MADARA_GUARD_TYPE guard(mutex_);
    result = barrier_result() == 1;
  }
 
  madara_logger_log(context_->get_logger(), logger::LOG_MAJOR,
      "LegacyBarrier::is_true: final result is %d\n", (int)result);
 
  return result;
}
 
bool madara::knowledge::containers::LegacyBarrier::is_false(void) const
{
  return !is_true();
}
 
bool madara::knowledge::containers::LegacyBarrier::is_true_(void) const
{
  return is_true();
}
 
bool madara::knowledge::containers::LegacyBarrier::is_false_(void) const
{
  return is_false();
}