gecko-dev/xpcom/base/nsErrorService.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsErrorService.h"
#include "nsCRTGlue.h"
#include "nsAutoPtr.h"

static void*
CloneCString(nsHashKey *aKey, void *aData, void* aClosure)
{
  return NS_strdup((const char*)aData);
}

static bool
DeleteCString(nsHashKey *aKey, void *aData, void* aClosure)
{
  NS_Free(aData);
  return true;
}

nsErrorService::nsErrorService()
  : mErrorStringBundleURLMap(CloneCString, nullptr, DeleteCString, nullptr, 16)
{
}

NS_IMPL_ISUPPORTS(nsErrorService, nsIErrorService)

nsresult
nsErrorService::Create(nsISupports* aOuter, const nsIID& aIID, void** aInstancePtr)
{
  if (NS_WARN_IF(aOuter))
    return NS_ERROR_NO_AGGREGATION;
  nsRefPtr<nsErrorService> serv = new nsErrorService();
  return serv->QueryInterface(aIID, aInstancePtr);
}

NS_IMETHODIMP
nsErrorService::RegisterErrorStringBundle(int16_t aErrorModule, const char* aStringBundleURL)
{
  char* value = NS_strdup(aStringBundleURL);
  if (!value) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  nsPRUint32Key k(aErrorModule);
  char* oldValue = (char*)mErrorStringBundleURLMap.Put(&k, value);
  if (oldValue) {
    NS_Free(oldValue);
  }
  return NS_OK;
}

NS_IMETHODIMP
nsErrorService::UnregisterErrorStringBundle(int16_t aErrorModule)
{
  nsPRUint32Key k(aErrorModule);
  char* oldValue = (char*)mErrorStringBundleURLMap.Remove(&k);
  if (oldValue) {
    NS_Free(oldValue);
  }
  return NS_OK;
}

NS_IMETHODIMP
nsErrorService::GetErrorStringBundle(int16_t aErrorModule, char** aResult)
{
  nsPRUint32Key k(aErrorModule);
  char* value = (char*)mErrorStringBundleURLMap.Get(&k);
  if (!value) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  value = NS_strdup(value);
  if (!value) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  *aResult = value;
  return NS_OK;
}

////////////////////////////////////////////////////////////////////////////////