ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/filter/bzip2.hpp b/include/ndnboost/iostreams/filter/bzip2.hpp
new file mode 100644
index 0000000..f26c4d0
--- /dev/null
+++ b/include/ndnboost/iostreams/filter/bzip2.hpp
@@ -0,0 +1,414 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2003-2007 Jonathan Turkanis
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
+
+// See http://www.boost.org/libs/iostreams for documentation.
+
+// Note: custom allocators are not supported on VC6, since that compiler
+// had trouble finding the function zlib_base::do_init.
+
+#ifndef NDNBOOST_IOSTREAMS_BZIP2_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_BZIP2_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <cassert>
+#include <memory> // allocator.
+#include <new> // bad_alloc.
+#include <ndnboost/config.hpp> // MSVC, STATIC_CONSTANT, DEDUCED_TYPENAME, DINKUM.
+#include <ndnboost/detail/workaround.hpp>
+#include <ndnboost/iostreams/constants.hpp> // buffer size.
+#include <ndnboost/iostreams/detail/config/auto_link.hpp>
+#include <ndnboost/iostreams/detail/config/bzip2.hpp>
+#include <ndnboost/iostreams/detail/config/dyn_link.hpp>
+#include <ndnboost/iostreams/detail/config/wide_streams.hpp>
+#include <ndnboost/iostreams/detail/ios.hpp> // failure, streamsize.
+#include <ndnboost/iostreams/filter/symmetric.hpp>
+#include <ndnboost/iostreams/pipeline.hpp>
+#include <ndnboost/type_traits/is_same.hpp>
+
+// Must come last.
+#ifdef NDNBOOST_MSVC
+# pragma warning(push)
+# pragma warning(disable:4251 4231 4660)
+#endif
+#include <ndnboost/config/abi_prefix.hpp>
+
+// Temporary fix.
+#undef small
+
+namespace ndnboost { namespace iostreams {
+
+namespace bzip2 {
+
+ // Typedefs.
+
+typedef void* (*alloc_func)(void*, int, int);
+typedef void (*free_func)(void*, void*);
+
+ // Status codes
+
+NDNBOOST_IOSTREAMS_DECL extern const int ok;
+NDNBOOST_IOSTREAMS_DECL extern const int run_ok;
+NDNBOOST_IOSTREAMS_DECL extern const int flush_ok;
+NDNBOOST_IOSTREAMS_DECL extern const int finish_ok;
+NDNBOOST_IOSTREAMS_DECL extern const int stream_end;
+NDNBOOST_IOSTREAMS_DECL extern const int sequence_error;
+NDNBOOST_IOSTREAMS_DECL extern const int param_error;
+NDNBOOST_IOSTREAMS_DECL extern const int mem_error;
+NDNBOOST_IOSTREAMS_DECL extern const int data_error;
+NDNBOOST_IOSTREAMS_DECL extern const int data_error_magic;
+NDNBOOST_IOSTREAMS_DECL extern const int io_error;
+NDNBOOST_IOSTREAMS_DECL extern const int unexpected_eof;
+NDNBOOST_IOSTREAMS_DECL extern const int outbuff_full;
+NDNBOOST_IOSTREAMS_DECL extern const int config_error;
+
+ // Action codes
+
+NDNBOOST_IOSTREAMS_DECL extern const int finish;
+NDNBOOST_IOSTREAMS_DECL extern const int run;
+
+ // Default values
+
+const int default_block_size = 9;
+const int default_work_factor = 30;
+const bool default_small = false;
+
+} // End namespace bzip2.
+
+//
+// Class name: bzip2_params.
+// Description: Encapsulates the parameters passed to deflateInit2
+// to customize compression.
+//
+struct bzip2_params {
+
+ // Non-explicit constructor for compression.
+ bzip2_params( int block_size = bzip2::default_block_size,
+ int work_factor = bzip2::default_work_factor )
+ : block_size(block_size), work_factor(work_factor)
+ { }
+
+ // Constructor for decompression.
+ bzip2_params(bool small)
+ : small(small), work_factor(0)
+ { }
+
+ union {
+ int block_size; // For compression.
+ bool small; // For decompression.
+ };
+ int work_factor;
+};
+
+//
+// Class name: bzip2_error.
+// Description: Subclass of std::ios_base::failure thrown to indicate
+// bzip2 errors other than out-of-memory conditions.
+//
+class NDNBOOST_IOSTREAMS_DECL bzip2_error : public NDNBOOST_IOSTREAMS_FAILURE {
+public:
+ explicit bzip2_error(int error);
+ int error() const { return error_; }
+ static void check NDNBOOST_PREVENT_MACRO_SUBSTITUTION(int error);
+private:
+ int error_;
+};
+
+namespace detail {
+
+template<typename Alloc>
+struct bzip2_allocator_traits {
+#ifndef NDNBOOST_NO_STD_ALLOCATOR
+ typedef typename Alloc::template rebind<char>::other type;
+#else
+ typedef std::allocator<char> type;
+#endif
+};
+
+template< typename Alloc,
+ typename Base = // VC6 workaround (C2516)
+ NDNBOOST_DEDUCED_TYPENAME bzip2_allocator_traits<Alloc>::type >
+struct bzip2_allocator : private Base {
+private:
+ typedef typename Base::size_type size_type;
+public:
+ NDNBOOST_STATIC_CONSTANT(bool, custom =
+ (!is_same<std::allocator<char>, Base>::value));
+ typedef typename bzip2_allocator_traits<Alloc>::type allocator_type;
+ static void* allocate(void* self, int items, int size);
+ static void deallocate(void* self, void* address);
+};
+
+class NDNBOOST_IOSTREAMS_DECL bzip2_base {
+public:
+ typedef char char_type;
+protected:
+ bzip2_base(const bzip2_params& params);
+ ~bzip2_base();
+ bzip2_params& params() { return params_; }
+ bool& ready() { return ready_; }
+ template<typename Alloc>
+ void init( bool compress,
+ bzip2_allocator<Alloc>& alloc )
+ {
+ bool custom = bzip2_allocator<Alloc>::custom;
+ do_init( compress,
+ #if !NDNBOOST_WORKAROUND(NDNBOOST_MSVC, < 1300)
+ custom ? bzip2_allocator<Alloc>::allocate : 0,
+ custom ? bzip2_allocator<Alloc>::deallocate : 0,
+ #endif
+ custom ? &alloc : 0 );
+ }
+ void before( const char*& src_begin, const char* src_end,
+ char*& dest_begin, char* dest_end );
+ void after(const char*& src_begin, char*& dest_begin);
+ int check_end(const char* src_begin, const char* dest_begin);
+ int compress(int action);
+ int decompress();
+ void end(bool compress);
+private:
+ void do_init( bool compress,
+ #if !NDNBOOST_WORKAROUND(NDNBOOST_MSVC, < 1300)
+ bzip2::alloc_func,
+ bzip2::free_func,
+ #endif
+ void* derived );
+ bzip2_params params_;
+ void* stream_; // Actual type: bz_stream*.
+ bool ready_;
+};
+
+//
+// Template name: bzip2_compressor_impl
+// Description: Model of SymmetricFilter implementing compression by
+// delegating to the libbzip2 function BZ_bzCompress.
+//
+template<typename Alloc = std::allocator<char> >
+class bzip2_compressor_impl
+ : public bzip2_base,
+ #if NDNBOOST_WORKAROUND(__BORLANDC__, < 0x600)
+ public
+ #endif
+ bzip2_allocator<Alloc>
+{
+public:
+ bzip2_compressor_impl(const bzip2_params&);
+ bool filter( const char*& src_begin, const char* src_end,
+ char*& dest_begin, char* dest_end, bool flush );
+ void close();
+private:
+ void init();
+ bool eof_; // Guard to make sure filter() isn't called after it returns false.
+};
+
+//
+// Template name: bzip2_compressor
+// Description: Model of SymmetricFilter implementing decompression by
+// delegating to the libbzip2 function BZ_bzDecompress.
+//
+template<typename Alloc = std::allocator<char> >
+class bzip2_decompressor_impl
+ : public bzip2_base,
+ #if NDNBOOST_WORKAROUND(__BORLANDC__, < 0x600)
+ public
+ #endif
+ bzip2_allocator<Alloc>
+{
+public:
+ bzip2_decompressor_impl(bool small = bzip2::default_small);
+ bool filter( const char*& begin_in, const char* end_in,
+ char*& begin_out, char* end_out, bool flush );
+ void close();
+private:
+ void init();
+ bool eof_; // Guard to make sure filter() isn't called after it returns false.
+};
+
+} // End namespace detail.
+
+//
+// Template name: bzip2_compressor
+// Description: Model of InputFilter and OutputFilter implementing
+// compression using libbzip2.
+//
+template<typename Alloc = std::allocator<char> >
+struct basic_bzip2_compressor
+ : symmetric_filter<detail::bzip2_compressor_impl<Alloc>, Alloc>
+{
+private:
+ typedef detail::bzip2_compressor_impl<Alloc> impl_type;
+ typedef symmetric_filter<impl_type, Alloc> base_type;
+public:
+ typedef typename base_type::char_type char_type;
+ typedef typename base_type::category category;
+ basic_bzip2_compressor( const bzip2_params& = bzip2::default_block_size,
+ int buffer_size = default_device_buffer_size );
+};
+NDNBOOST_IOSTREAMS_PIPABLE(basic_bzip2_compressor, 1)
+
+typedef basic_bzip2_compressor<> bzip2_compressor;
+
+//
+// Template name: bzip2_decompressor
+// Description: Model of InputFilter and OutputFilter implementing
+// decompression using libbzip2.
+//
+template<typename Alloc = std::allocator<char> >
+struct basic_bzip2_decompressor
+ : symmetric_filter<detail::bzip2_decompressor_impl<Alloc>, Alloc>
+{
+private:
+ typedef detail::bzip2_decompressor_impl<Alloc> impl_type;
+ typedef symmetric_filter<impl_type, Alloc> base_type;
+public:
+ typedef typename base_type::char_type char_type;
+ typedef typename base_type::category category;
+ basic_bzip2_decompressor( bool small = bzip2::default_small,
+ int buffer_size = default_device_buffer_size );
+};
+NDNBOOST_IOSTREAMS_PIPABLE(basic_bzip2_decompressor, 1)
+
+typedef basic_bzip2_decompressor<> bzip2_decompressor;
+
+//----------------------------------------------------------------------------//
+
+//------------------Implementation of bzip2_allocator-------------------------//
+
+namespace detail {
+
+template<typename Alloc, typename Base>
+void* bzip2_allocator<Alloc, Base>::allocate(void* self, int items, int size)
+{
+ size_type len = items * size;
+ char* ptr =
+ static_cast<allocator_type*>(self)->allocate
+ (len + sizeof(size_type)
+ #if NDNBOOST_WORKAROUND(NDNBOOST_DINKUMWARE_STDLIB, == 1)
+ , (char*)0
+ #endif
+ );
+ *reinterpret_cast<size_type*>(ptr) = len;
+ return ptr + sizeof(size_type);
+}
+
+template<typename Alloc, typename Base>
+void bzip2_allocator<Alloc, Base>::deallocate(void* self, void* address)
+{
+ char* ptr = reinterpret_cast<char*>(address) - sizeof(size_type);
+ size_type len = *reinterpret_cast<size_type*>(ptr) + sizeof(size_type);
+ static_cast<allocator_type*>(self)->deallocate(ptr, len);
+}
+
+//------------------Implementation of bzip2_compressor_impl-------------------//
+
+template<typename Alloc>
+bzip2_compressor_impl<Alloc>::bzip2_compressor_impl(const bzip2_params& p)
+ : bzip2_base(p), eof_(false) { }
+
+template<typename Alloc>
+bool bzip2_compressor_impl<Alloc>::filter
+ ( const char*& src_begin, const char* src_end,
+ char*& dest_begin, char* dest_end, bool flush )
+{
+ if (!ready()) init();
+ if (eof_) return false;
+ before(src_begin, src_end, dest_begin, dest_end);
+ int result = compress(flush ? bzip2::finish : bzip2::run);
+ after(src_begin, dest_begin);
+ bzip2_error::check NDNBOOST_PREVENT_MACRO_SUBSTITUTION(result);
+ return !(eof_ = result == bzip2::stream_end);
+}
+
+template<typename Alloc>
+void bzip2_compressor_impl<Alloc>::close()
+{
+ try {
+ end(true);
+ } catch (...) {
+ eof_ = false;
+ throw;
+ }
+ eof_ = false;
+}
+
+template<typename Alloc>
+inline void bzip2_compressor_impl<Alloc>::init()
+{ bzip2_base::init(true, static_cast<bzip2_allocator<Alloc>&>(*this)); }
+
+//------------------Implementation of bzip2_decompressor_impl-----------------//
+
+template<typename Alloc>
+bzip2_decompressor_impl<Alloc>::bzip2_decompressor_impl(bool small)
+ : bzip2_base(bzip2_params(small)), eof_(false) { }
+
+template<typename Alloc>
+bool bzip2_decompressor_impl<Alloc>::filter
+ ( const char*& src_begin, const char* src_end,
+ char*& dest_begin, char* dest_end, bool flush )
+{
+ if (eof_) {
+ // reset the stream if there are more characters
+ if(src_begin == src_end)
+ return false;
+ else
+ close();
+ }
+ if (!ready())
+ init();
+ before(src_begin, src_end, dest_begin, dest_end);
+ int result = decompress();
+ if(result == bzip2::ok && flush)
+ result = check_end(src_begin, dest_begin);
+ after(src_begin, dest_begin);
+ bzip2_error::check NDNBOOST_PREVENT_MACRO_SUBSTITUTION(result);
+ eof_ = result == bzip2::stream_end;
+ return true;
+}
+
+template<typename Alloc>
+void bzip2_decompressor_impl<Alloc>::close()
+{
+ try {
+ end(false);
+ } catch (...) {
+ eof_ = false;
+ throw;
+ }
+ eof_ = false;
+}
+
+template<typename Alloc>
+inline void bzip2_decompressor_impl<Alloc>::init()
+{ bzip2_base::init(false, static_cast<bzip2_allocator<Alloc>&>(*this)); }
+} // End namespace detail.
+
+//------------------Implementation of bzip2_decompressor----------------------//
+
+template<typename Alloc>
+basic_bzip2_compressor<Alloc>::basic_bzip2_compressor
+ (const bzip2_params& p, int buffer_size)
+ : base_type(buffer_size, p)
+ { }
+
+//------------------Implementation of bzip2_decompressor----------------------//
+
+template<typename Alloc>
+basic_bzip2_decompressor<Alloc>::basic_bzip2_decompressor
+ (bool small, int buffer_size)
+ : base_type(buffer_size, small)
+ { }
+
+//----------------------------------------------------------------------------//
+
+} } // End namespaces iostreams, boost.
+
+#include <ndnboost/config/abi_suffix.hpp> // Pops abi_suffix.hpp pragmas.
+#ifdef NDNBOOST_MSVC
+# pragma warning(pop)
+#endif
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_BZIP2_HPP_INCLUDED