node.cc 8.03 KB
Newer Older
1
/*
2
 * Copyright (c) 2014-2015, Siemens AG. All rights reserved.
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
 */

#include <algorithm>
#include <cstddef>
#include <cstdlib>
#include <cassert>

#include <embb/base/memory_allocation.h>
#include <embb/base/exceptions.h>
34 35
#include <embb/tasks/tasks.h>
#if TASKS_CPP_AUTOMATIC_INITIALIZE
36 37 38 39 40
#include <embb/base/mutex.h>
#endif

namespace {

41 42
static embb::tasks::Node * node_instance = NULL;
#if TASKS_CPP_AUTOMATIC_INITIALIZE
43
static embb::base::Mutex init_mutex;
44
#endif
45 46 47 48

}

namespace embb {
49
namespace tasks {
50 51 52 53 54 55 56 57 58

void Node::action_func(
  const void* args,
  mtapi_size_t /*args_size*/,
  void* /*result_buffer*/,
  mtapi_size_t /*result_buffer_size*/,
  const void* /*node_local_data*/,
  mtapi_size_t /*node_local_data_size*/,
  mtapi_task_context_t * context) {
59 60 61
  Action * action =
    reinterpret_cast<Action*>(const_cast<void*>(args));
  TaskContext task_context(context);
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
  (*action)(task_context);
  embb::base::Allocation::Delete(action);
}

Node::Node(
  mtapi_domain_t domain_id,
  mtapi_node_t node_id,
  mtapi_node_attributes_t * attr) {
  mtapi_status_t status;
  mtapi_info_t info;
  mtapi_initialize(domain_id, node_id, attr, &info, &status);
  if (MTAPI_SUCCESS != status) {
    EMBB_THROW(embb::base::ErrorException,
      "mtapi::Node could not initialize mtapi");
  }
  core_count_ = info.hardware_concurrency;
78
  worker_thread_count_ = embb_core_set_count(&attr->core_affinity);
79
  action_handle_ = mtapi_action_create(TASKS_CPP_JOB, action_func,
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
    MTAPI_NULL, 0, MTAPI_NULL, &status);
  if (MTAPI_SUCCESS != status) {
    EMBB_THROW(embb::base::ErrorException,
      "mtapi::Node could not create an action");
  }
}

Node::~Node() {
  for (std::list<Queue*>::iterator ii = queues_.begin();
       ii != queues_.end();
       ++ii) {
    embb::base::Allocation::Delete(*ii);
  }
  queues_.clear();

  for (std::list<Group*>::iterator ii = groups_.begin();
       ii != groups_.end();
       ++ii) {
    embb::base::Allocation::Delete(*ii);
  }
  groups_.clear();

  mtapi_status_t status;
  mtapi_action_delete(action_handle_, MTAPI_INFINITE, &status);
  assert(MTAPI_SUCCESS == status);
  mtapi_finalize(&status);
  assert(MTAPI_SUCCESS == status);
}

void Node::Initialize(
  mtapi_domain_t domain_id,
  mtapi_node_t node_id) {
  if (IsInitialized()) {
    EMBB_THROW(embb::base::ErrorException,
      "mtapi::Node was already initialized");
  } else {
    mtapi_status_t status;
    mtapi_node_attributes_t attr;
    mtapi_uint_t tmp;
    mtapi_nodeattr_init(&attr, &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 4;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_ACTIONS,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 4;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_JOBS,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 1;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_ACTIONS_PER_JOB,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    node_instance = embb::base::Allocation::New<Node>(
      domain_id, node_id, &attr);
  }
}

void Node::Initialize(
  mtapi_domain_t domain_id,
  mtapi_node_t node_id,
  embb::base::CoreSet const & core_set,
  mtapi_uint_t max_tasks,
  mtapi_uint_t max_groups,
  mtapi_uint_t max_queues,
  mtapi_uint_t queue_limit,
  mtapi_uint_t max_priorities) {
  if (IsInitialized()) {
    EMBB_THROW(embb::base::ErrorException,
      "mtapi::Node was already initialized");
  } else {
    mtapi_status_t status;
    mtapi_node_attributes_t attr;
    mtapi_uint_t tmp;
    mtapi_nodeattr_init(&attr, &status);
    assert(MTAPI_SUCCESS == status);
    embb_core_set_t cs;
    embb_core_set_init(&cs, 0);
Marcus Winter committed
158 159
    for (unsigned int ii = 0; embb_core_set_count(&cs) < core_set.Count();
      ii++) {
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203
      if (core_set.IsContained(ii)) {
        embb_core_set_add(&cs, ii);
      }
    }
    mtapi_nodeattr_set(&attr, MTAPI_NODE_CORE_AFFINITY,
      &cs, sizeof(cs), &status);
    assert(MTAPI_SUCCESS == status);
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_TASKS,
      &max_tasks, sizeof(max_tasks), &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 4;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_ACTIONS,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_GROUPS,
      &max_groups, sizeof(max_groups), &status);
    assert(MTAPI_SUCCESS == status);
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_QUEUES,
      &max_queues, sizeof(max_queues), &status);
    assert(MTAPI_SUCCESS == status);
    mtapi_nodeattr_set(&attr, MTAPI_NODE_QUEUE_LIMIT,
      &queue_limit, sizeof(queue_limit), &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 4;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_JOBS,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    tmp = 1;
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_ACTIONS_PER_JOB,
      &tmp, sizeof(tmp), &status);
    assert(MTAPI_SUCCESS == status);
    mtapi_nodeattr_set(&attr, MTAPI_NODE_MAX_PRIORITIES,
      &max_priorities, sizeof(max_priorities), &status);
    assert(MTAPI_SUCCESS == status);
    node_instance = embb::base::Allocation::New<Node>(
      domain_id, node_id, &attr);
  }
}

bool Node::IsInitialized() {
  return NULL != node_instance;
}

Node & Node::GetInstance() {
204
#if TASKS_CPP_AUTOMATIC_INITIALIZE
205
  if (!IsInitialized()) {
206 207 208
    init_mutex.Lock();
    if (!IsInitialized()) {
      Node::Initialize(
209
        TASKS_CPP_AUTOMATIC_DOMAIN_ID, TASKS_CPP_AUTOMATIC_NODE_ID);
210 211 212
      atexit(Node::Finalize);
    }
    init_mutex.Unlock();
213 214 215 216 217 218 219
  }
  return *node_instance;
#else
  if (IsInitialized()) {
    return *node_instance;
  } else {
    EMBB_THROW(embb::base::ErrorException,
220
      "embb::tasks::Node is not initialized");
221 222 223 224 225 226 227 228 229 230
  }
#endif
}

void Node::Finalize() {
  if (IsInitialized()) {
    embb::base::Allocation::Delete(node_instance);
    node_instance = NULL;
  } else {
    EMBB_THROW(embb::base::ErrorException,
231
      "embb::tasks::Node is not initialized");
232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265
  }
}

Group & Node::CreateGroup() {
  Group * group = embb::base::Allocation::New<Group>();
  groups_.push_back(group);
  return *group;
}

void Node::DestroyGroup(Group & group) {
  std::list<Group*>::iterator ii =
    std::find(groups_.begin(), groups_.end(), &group);
  if (ii != groups_.end()) {
    embb::base::Allocation::Delete(*ii);
    groups_.erase(ii);
  }
}

Queue & Node::CreateQueue(mtapi_uint_t priority, bool ordered) {
  Queue * queue = embb::base::Allocation::New<Queue>(priority, ordered);
  queues_.push_back(queue);
  return *queue;
}

void Node::DestroyQueue(Queue & queue) {
  std::list<Queue*>::iterator ii =
    std::find(queues_.begin(), queues_.end(), &queue);
  if (ii != queues_.end()) {
    embb::base::Allocation::Delete(*ii);
    queues_.erase(ii);
  }
}

Task Node::Spawn(Action action) {
266
  return Task(action);
267 268 269 270 271 272
}

Continuation Node::First(Action action) {
  return Continuation(action);
}

273
} // namespace tasks
274
} // namespace embb