ContentRange.h (1460B)
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim:set et cin ts=4 sw=2 sts=2: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef ContentRange_h__ 8 #define ContentRange_h__ 9 10 #include "nsString.h" 11 #include "nsISupportsImpl.h" 12 13 // nsIBaseChannel subclasses may support range headers when accessed via 14 // Fetch or XMLHTTPRequest, even if they are not HTTP assets and so do not 15 // normally have access to headers (such as the blob URLs). The ContentRange 16 // class helps to encapsulate much of the common logic involved in parsing, 17 // storing, validating, and writing out Content-Range headers. 18 19 namespace mozilla::net { 20 21 class ContentRange { 22 private: 23 ~ContentRange() = default; 24 25 uint64_t mStart{0}; 26 uint64_t mEnd{0}; 27 uint64_t mSize{0}; 28 29 public: 30 uint64_t Start() const { return mStart; } 31 uint64_t End() const { return mEnd; } 32 uint64_t Size() const { return mSize; } 33 bool IsValid() const { return mStart < mSize; } 34 ContentRange(uint64_t aStart, uint64_t aEnd, uint64_t aSize) 35 : mStart(aStart), mEnd(aEnd), mSize(aSize) {} 36 ContentRange(const nsACString& aRangeHeader, uint64_t aSize); 37 void AsHeader(nsACString& aOutString) const; 38 39 NS_INLINE_DECL_REFCOUNTING(ContentRange) 40 }; 41 42 } // namespace mozilla::net 43 44 #endif // ContentRange_h__