gecko-dev/dom/media/gmp/GMPUtils.h

86 строки
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef GMPUtils_h_
#define GMPUtils_h_
#include "mozilla/UniquePtr.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
#include "nsClassHashtable.h"
class nsIFile;
class nsCString;
class nsISimpleEnumerator;
namespace mozilla {
template<typename T>
struct DestroyPolicy
{
void operator()(T* aGMPObject) const {
aGMPObject->Destroy();
}
};
template<typename T>
using GMPUniquePtr = mozilla::UniquePtr<T, DestroyPolicy<T>>;
bool GetEMEVoucherPath(nsIFile** aPath);
bool EMEVoucherFileExists();
void
SplitAt(const char* aDelims,
const nsACString& aInput,
nsTArray<nsCString>& aOutTokens);
nsCString
ToBase64(const nsTArray<uint8_t>& aBytes);
bool
FileExists(nsIFile* aFile);
// Enumerate directory entries for a specified path.
class DirectoryEnumerator {
public:
enum Mode {
DirsOnly, // Enumeration only includes directories.
FilesAndDirs // Enumeration includes directories and non-directory files.
};
DirectoryEnumerator(nsIFile* aPath, Mode aMode);
already_AddRefed<nsIFile> Next();
private:
Mode mMode;
nsCOMPtr<nsISimpleEnumerator> mIter;
};
class GMPInfoFileParser {
public:
bool Init(nsIFile* aFile);
bool Contains(const nsCString& aKey) const;
nsCString Get(const nsCString& aKey) const;
private:
nsClassHashtable<nsCStringHashKey, nsCString> mValues;
};
bool
ReadIntoArray(nsIFile* aFile,
nsTArray<uint8_t>& aOutDst,
size_t aMaxLength);
bool
ReadIntoString(nsIFile* aFile,
nsCString& aOutDst,
size_t aMaxLength);
} // namespace mozilla
#endif