lang/c/msgpack: added C++ binding msgpack::pack

git-svn-id: file:///Users/frsyuki/project/msgpack-git/svn/x@53 5a5092ae-2292-43ba-b2d5-dcab9c1a2731

1 files changed, 192 insertions, 0 deletions

diff --git a/cpp/pack.hpp b/cpp/pack.hpp
new file mode 100644
index 0000000..89f8cee
--- /dev/null
+++ b/cpp/pack.hpp
@@ -0,0 +1,192 @@
+#ifndef MSGPACK_PACK_HPP__
+#define MSGPACK_PACK_HPP__
+
+#include "msgpack/object.hpp"
+#include "msgpack/zone.hpp"
+#include <arpa/inet.h>  // __BYTE_ORDER
+#include <stdexcept>
+
+namespace msgpack {
+
+
+template <typename Stream>
+class packer {
+public:
+	packer(Stream& s);
+
+public:
+	void pack_int(int d)					{ pack_int_impl(m_stream, d); }
+	void pack_unsigned_int(unsigned int d)	{ pack_unsigned_int_impl(m_stream, d); }
+	void pack_unsigned_int_8(uint8_t d)		{ pack_unsigned_int_8_impl(m_stream, d); }
+	void pack_unsigned_int_16(uint16_t d)	{ pack_unsigned_int_16_impl(m_stream, d); }
+	void pack_unsigned_int_32(uint32_t d)	{ pack_unsigned_int_32_impl(m_stream, d); }
+	void pack_unsigned_int_64(uint64_t d)	{ pack_unsigned_int_64_impl(m_stream, d); }
+	void pack_signed_int_8(uint8_t d)		{ pack_signed_int_8_impl(m_stream, d); }
+	void pack_signed_int_16(uint16_t d)		{ pack_signed_int_16_impl(m_stream, d); }
+	void pack_signed_int_32(uint32_t d)		{ pack_signed_int_32_impl(m_stream, d); }
+	void pack_signed_int_64(uint64_t d)		{ pack_signed_int_64_impl(m_stream, d); }
+	void pack_float(float d)				{ pack_float_impl(m_stream, d); }
+	void pack_double(double d)				{ pack_double_impl(m_stream, d); }
+	void pack_nil()							{ pack_nil(m_stream); }
+	void pack_true()						{ pack_true(m_stream); }
+	void pack_false()						{ pack_false(m_stream); }
+	void pack_array(unsigned int n)			{ pack_array_impl(m_stream, n); }
+	void pack_map(unsigned int n)			{ pack_map_impl(m_stream, n); }
+	void pack_string(const char* b)			{ pack_string_impl(m_stream, b); }
+	void pack_raw(const void* b, size_t l)	{ pack_raw_impl(m_stream, b, l); }
+
+private:
+	static void pack_int_impl(Stream& x, int d);
+	static void pack_unsigned_int_impl(Stream& x, unsigned int d);
+	static void pack_unsigned_int_8_impl(Stream& x, uint8_t d);
+	static void pack_unsigned_int_16_impl(Stream& x, uint16_t d);
+	static void pack_unsigned_int_32_impl(Stream& x, uint32_t d);
+	static void pack_unsigned_int_64_impl(Stream& x, uint64_t d);
+	static void pack_signed_int_8_impl(Stream& x, int8_t d);
+	static void pack_signed_int_16_impl(Stream& x, int16_t d);
+	static void pack_signed_int_32_impl(Stream& x, int32_t d);
+	static void pack_signed_int_64_impl(Stream& x, int64_t d);
+	static void pack_float_impl(Stream& x, float d);
+	static void pack_double_impl(Stream& x, double d);
+	static void pack_nil_impl(Stream& x);
+	static void pack_true_impl(Stream& x);
+	static void pack_false_impl(Stream& x);
+	static void pack_array_impl(Stream& x, unsigned int n);
+	static void pack_map_impl(Stream& x, unsigned int n);
+	static void pack_string_impl(Stream& x, const char* b);
+	static void pack_raw_impl(Stream& x, const void* b, size_t l);
+	static void append_buffer(Stream& x, const unsigned char* buf, unsigned int len)
+		{ x.append((const char*)buf, len); }
+
+private:
+	Stream& m_stream;
+
+private:
+	packer();
+};
+
+#define msgpack_pack_inline_func(name) \
+	template <typename Stream> \
+	inline void packer<Stream>::pack_ ## name ## _impl
+#define msgpack_pack_context Stream&
+#define msgpack_pack_append_buffer append_buffer
+#include "msgpack/pack/inline_impl.h"
+#undef msgpack_pack_context
+#undef msgpack_pack_append_buffer
+
+template <typename Stream>
+packer<Stream>::packer(Stream& s) : m_stream(s) { }
+
+
+class dynamic_stream {
+public:
+	template <typename Stream>
+	dynamic_stream(Stream& s);
+public:
+	dynamic_stream& append(const char* buf, size_t len)
+		{ (*m_function)(m_object, buf, len); return *this; }
+private:
+	void* m_object;
+	void (*m_function)(void* object, const char* buf, size_t len);
+private:
+	template <typename Stream, Stream& (Stream::*MemFun)(const char*, size_t)>
+	static void append_trampoline(void* object, const char* buf, size_t len);
+};
+
+
+class dynamic_packer {
+public:
+	template <typename Stream>
+	dynamic_packer(Stream& s);
+
+public:
+	void pack_int(int d)					{ pack_int_impl(m_stream, d); }
+	void pack_unsigned_int(unsigned int d)	{ pack_unsigned_int_impl(m_stream, d); }
+	void pack_unsigned_int_8(uint8_t d)		{ pack_unsigned_int_8_impl(m_stream, d); }
+	void pack_unsigned_int_16(uint16_t d)	{ pack_unsigned_int_16_impl(m_stream, d); }
+	void pack_unsigned_int_32(uint32_t d)	{ pack_unsigned_int_32_impl(m_stream, d); }
+	void pack_unsigned_int_64(uint64_t d)	{ pack_unsigned_int_64_impl(m_stream, d); }
+	void pack_signed_int_8(uint8_t d)		{ pack_signed_int_8_impl(m_stream, d); }
+	void pack_signed_int_16(uint16_t d)		{ pack_signed_int_16_impl(m_stream, d); }
+	void pack_signed_int_32(uint32_t d)		{ pack_signed_int_32_impl(m_stream, d); }
+	void pack_signed_int_64(uint64_t d)		{ pack_signed_int_64_impl(m_stream, d); }
+	void pack_float(float d)				{ pack_float_impl(m_stream, d); }
+	void pack_double(double d)				{ pack_double_impl(m_stream, d); }
+	void pack_nil()							{ pack_nil_impl(m_stream); }
+	void pack_true()						{ pack_true_impl(m_stream); }
+	void pack_false()						{ pack_false_impl(m_stream); }
+	void pack_array(unsigned int n)			{ pack_array_impl(m_stream, n); }
+	void pack_map(unsigned int n)			{ pack_map_impl(m_stream, n); }
+	void pack_string(const char* b)			{ pack_string_impl(m_stream, b); }
+	void pack_raw(const void* b, size_t l)	{ pack_raw_impl(m_stream, b, l); }
+
+public:
+
+private:
+	static void pack_int_impl(dynamic_stream& x, int d);
+	static void pack_unsigned_int_impl(dynamic_stream& x, unsigned int d);
+	static void pack_unsigned_int_8_impl(dynamic_stream& x, uint8_t d);
+	static void pack_unsigned_int_16_impl(dynamic_stream& x, uint16_t d);
+	static void pack_unsigned_int_32_impl(dynamic_stream& x, uint32_t d);
+	static void pack_unsigned_int_64_impl(dynamic_stream& x, uint64_t d);
+	static void pack_signed_int_8_impl(dynamic_stream& x, int8_t d);
+	static void pack_signed_int_16_impl(dynamic_stream& x, int16_t d);
+	static void pack_signed_int_32_impl(dynamic_stream& x, int32_t d);
+	static void pack_signed_int_64_impl(dynamic_stream& x, int64_t d);
+	static void pack_float_impl(dynamic_stream& x, float d);
+	static void pack_double_impl(dynamic_stream& x, double d);
+	static void pack_nil_impl(dynamic_stream& x);
+	static void pack_true_impl(dynamic_stream& x);
+	static void pack_false_impl(dynamic_stream& x);
+	static void pack_array_impl(dynamic_stream& x, unsigned int n);
+	static void pack_map_impl(dynamic_stream& x, unsigned int n);
+	static void pack_string_impl(dynamic_stream& x, const char* b);
+	static void pack_raw_impl(dynamic_stream& x, const void* b, size_t l);
+	static void append_buffer(dynamic_stream& x, const unsigned char* buf, unsigned int len)
+		{ x.append((const char*)buf, len); }
+
+private:
+	dynamic_stream m_stream;
+
+private:
+	dynamic_packer();
+};
+
+#undef MSGPACK_PACK_INLINE_IMPL_H__
+#define msgpack_pack_inline_func(name) \
+	inline void dynamic_packer::pack_ ## name ## _impl
+#define msgpack_pack_context dynamic_stream&
+#define msgpack_pack_append_buffer append_buffer
+#include "msgpack/pack/inline_impl.h"
+#undef msgpack_pack_context
+#undef msgpack_pack_append_buffer
+
+template <typename Stream>
+dynamic_packer::dynamic_packer(Stream& s) : m_stream(s) { }
+
+template <typename Stream>
+dynamic_stream::dynamic_stream(Stream& s)
+{
+	m_object = reinterpret_cast<void*>(&s);
+	m_function = &dynamic_stream::append_trampoline<Stream, &Stream::append>;
+}
+
+template <typename Stream, Stream& (Stream::*MemFun)(const char*, size_t)>
+void dynamic_stream::append_trampoline(void* object, const char* buf, size_t len)
+{
+	(reinterpret_cast<Stream*>(object)->*MemFun)(buf, len);
+}
+
+
+template <typename Stream>
+inline void pack(Stream& s, object o)
+{
+	dynamic_packer pk(s);
+	o.pack(pk);
+}
+
+
+}  // namespace msgpack
+
+#endif /* msgpack/pack.hpp */
+