constants.h

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Distributed under BSD 3-Clause license.                                   *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Illinois Institute of Technology.                        *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of Hermes. The full Hermes copyright notice, including  *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the top directory. If you do not  *
 * have access to the file, you may request a copy from help@hdfgroup.org.   *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
#ifndef HERMES_ADAPTER_CONSTANTS_H
#define HERMES_ADAPTER_CONSTANTS_H
 
#include <glog/logging.h>
 
const char* kHermesConf = "HERMES_CONF";
 
const char* kHermesClient = "HERMES_CLIENT";
 
const char* kHermesAsyncFlush = "HERMES_ASYNC_FLUSH";
 
const char* kHermesExtension = ".hermes";
const char* kAdapterMode = "ADAPTER_MODE";
const char* kAdapterModeInfo = "ADAPTER_MODE_INFO";
const char kPathDelimiter = ',';
const char* kAdapterDefaultMode = "DEFAULT";
const char* kAdapterBypassMode = "BYPASS";
const char* kAdapterScratchMode = "SCRATCH";
const char* kAdapterWorkflowMode = "WORKFLOW";
 
const char* kStopDaemon = "HERMES_STOP_DAEMON";
 
const size_t kPageSize = []() {
  const char* kPageSizeVar = "HERMES_PAGE_SIZE";
  const size_t kDefaultPageSize = 1 * 1024 * 1024;
 
  size_t result = kDefaultPageSize;
  char* page_size = getenv(kPageSizeVar);
 
  if (page_size) {
    result = (size_t)std::strtoull(page_size, NULL, 0);
    if (result == 0) {
      LOG(FATAL) << "Invalid value of " << kPageSizeVar << ": " << page_size;
    }
  }
 
  return result;
}();
 
const char* kHermesWriteOnlyVar = "HERMES_WRITE_ONLY";
 
#endif  // HERMES_ADAPTER_CONSTANTS_H