245 lines
7.2 KiB
C
245 lines
7.2 KiB
C
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#ifndef HV_ENDIAN_H_
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#define HV_ENDIAN_H_
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#include "hplatform.h"
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#if defined(OS_MAC)
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#include <libkern/OSByteOrder.h>
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#define htobe16(v) OSSwapHostToBigInt16(v)
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#define htobe32(v) OSSwapHostToBigInt32(v)
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#define htobe64(v) OSSwapHostToBigInt64(v)
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#define be16toh(v) OSSwapBigToHostInt16(v)
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#define be32toh(v) OSSwapBigToHostInt32(v)
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#define be64toh(v) OSSwapBigToHostInt64(v)
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#define htole16(v) OSSwapHostToLittleInt16(v)
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#define htole32(v) OSSwapHostToLittleInt32(v)
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#define htole64(v) OSSwapHostToLittleInt64(v)
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#define le16toh(v) OSSwapLittleToHostInt16(v)
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#define le32toh(v) OSSwapLittleToHostInt32(v)
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#define le64toh(v) OSSwapLittleToHostInt64(v)
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#elif defined(OS_WIN)
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#if _WIN32_WINNT < _WIN32_WINNT_WIN8
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/*
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* Byte order conversion functions for 64-bit integers and 32 + 64 bit
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* floating-point numbers. IEEE big-endian format is used for the
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* network floating point format.
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*/
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#define _WS2_32_WINSOCK_SWAP_LONG(l) \
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( ( ((l) >> 24) & 0x000000FFL ) | \
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( ((l) >> 8) & 0x0000FF00L ) | \
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( ((l) << 8) & 0x00FF0000L ) | \
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( ((l) << 24) & 0xFF000000L ) )
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#define _WS2_32_WINSOCK_SWAP_LONGLONG(l) \
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( ( ((l) >> 56) & 0x00000000000000FFLL ) | \
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( ((l) >> 40) & 0x000000000000FF00LL ) | \
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( ((l) >> 24) & 0x0000000000FF0000LL ) | \
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( ((l) >> 8) & 0x00000000FF000000LL ) | \
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( ((l) << 8) & 0x000000FF00000000LL ) | \
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( ((l) << 24) & 0x0000FF0000000000LL ) | \
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( ((l) << 40) & 0x00FF000000000000LL ) | \
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( ((l) << 56) & 0xFF00000000000000LL ) )
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#ifndef htonll
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__inline unsigned __int64 htonll ( unsigned __int64 Value )
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{
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const unsigned __int64 Retval = _WS2_32_WINSOCK_SWAP_LONGLONG (Value);
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return Retval;
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}
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#endif /* htonll */
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#ifndef ntohll
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__inline unsigned __int64 ntohll ( unsigned __int64 Value )
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{
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const unsigned __int64 Retval = _WS2_32_WINSOCK_SWAP_LONGLONG (Value);
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return Retval;
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}
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#endif /* ntohll */
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#ifndef htonf
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__inline unsigned __int32 htonf ( float Value )
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{
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unsigned __int32 Tempval;
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unsigned __int32 Retval;
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Tempval = *(unsigned __int32*)(&Value);
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Retval = _WS2_32_WINSOCK_SWAP_LONG (Tempval);
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return Retval;
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}
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#endif /* htonf */
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#ifndef ntohf
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__inline float ntohf ( unsigned __int32 Value )
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{
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const unsigned __int32 Tempval = _WS2_32_WINSOCK_SWAP_LONG (Value);
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float Retval;
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*((unsigned __int32*)&Retval) = Tempval;
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return Retval;
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}
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#endif /* ntohf */
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#ifndef htond
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__inline unsigned __int64 htond ( double Value )
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{
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unsigned __int64 Tempval;
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unsigned __int64 Retval;
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Tempval = *(unsigned __int64*)(&Value);
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Retval = _WS2_32_WINSOCK_SWAP_LONGLONG (Tempval);
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return Retval;
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}
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#endif /* htond */
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#ifndef ntohd
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__inline double ntohd ( unsigned __int64 Value )
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{
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const unsigned __int64 Tempval = _WS2_32_WINSOCK_SWAP_LONGLONG (Value);
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double Retval;
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*((unsigned __int64*)&Retval) = Tempval;
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return Retval;
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}
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#endif /* ntohd */
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#endif
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#define htobe16(v) htons(v)
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#define htobe32(v) htonl(v)
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#define htobe64(v) htonll(v)
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#define be16toh(v) ntohs(v)
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#define be32toh(v) ntohl(v)
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#define be64toh(v) ntohll(v)
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#if (BYTE_ORDER == LITTLE_ENDIAN)
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#define htole16(v) (v)
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#define htole32(v) (v)
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#define htole64(v) (v)
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#define le16toh(v) (v)
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#define le32toh(v) (v)
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#define le64toh(v) (v)
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#elif (BYTE_ORDER == BIG_ENDIAN)
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#define htole16(v) __builtin_bswap16(v)
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#define htole32(v) __builtin_bswap32(v)
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#define htole64(v) __builtin_bswap64(v)
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#define le16toh(v) __builtin_bswap16(v)
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#define le32toh(v) __builtin_bswap32(v)
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#define le64toh(v) __builtin_bswap64(v)
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#endif
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#elif HAVE_ENDIAN_H
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#include <endian.h>
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#elif HAVE_SYS_ENDIAN_H
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#include <sys/endian.h>
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#else
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#warning "Not found endian.h!"
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#endif
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#define PI8(p) *(int8_t*)(p)
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#define PI16(p) *(int16_t*)(p)
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#define PI32(p) *(int32_t*)(p)
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#define PI64(p) *(int64_t*)(p)
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#define PU8(p) *(uint8_t*)(p)
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#define PU16(p) *(uint16_t*)(p)
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#define PU32(p) *(uint32_t*)(p)
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#define PU64(p) *(uint64_t*)(p)
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#define PF32(p) *(float*)(p)
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#define PF64(p) *(double*)(p)
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#define GET_BE16(p) be16toh(PU16(p))
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#define GET_BE32(p) be32toh(PU32(p))
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#define GET_BE64(p) be64toh(PU64(p))
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#define GET_LE16(p) le16toh(PU16(p))
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#define GET_LE32(p) le32toh(PU32(p))
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#define GET_LE64(p) le64toh(PU64(p))
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#define PUT_BE16(p, v) PU16(p) = htobe16(v)
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#define PUT_BE32(p, v) PU32(p) = htobe32(v)
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#define PUT_BE64(p, v) PU64(p) = htobe64(v)
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#define PUT_LE16(p, v) PU16(p) = htole16(v)
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#define PUT_LE32(p, v) PU32(p) = htole32(v)
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#define PUT_LE64(p, v) PU64(p) = htole64(v)
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// NOTE: uint8_t* p = (uint8_t*)buf;
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#define POP_BE8(p, v) v = *p; ++p
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#define POP_BE16(p, v) v = be16toh(PU16(p)); p += 2
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#define POP_BE32(p, v) v = be32toh(PU32(p)); p += 4
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#define POP_BE64(p, v) v = be64toh(PU64(p)); p += 8
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#define POP_LE8(p, v) v= *p; ++p
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#define POP_LE16(p, v) v = le16toh(PU16(p)); p += 2
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#define POP_LE32(p, v) v = le32toh(PU32(p)); p += 4
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#define POP_LE64(p, v) v = le64toh(PU64(p)); p += 8
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#define PUSH_BE8(p, v) *p = v; ++p
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#define PUSH_BE16(p, v) PU16(p) = htobe16(v); p += 2
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#define PUSH_BE32(p, v) PU32(p) = htobe32(v); p += 4
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#define PUSH_BE64(p, v) PU64(p) = htobe64(v); p += 8
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#define PUSH_LE8(p, v) *p = v; ++p
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#define PUSH_LE16(p, v) PU16(p) = htole16(v); p += 2
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#define PUSH_LE32(p, v) PU32(p) = htole32(v); p += 4
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#define PUSH_LE64(p, v) PU64(p) = htole64(v); p += 8
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// NOTE: NET_ENDIAN = BIG_ENDIAN
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#define POP8(p, v) POP_BE8(p, v)
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#define POP16(p, v) POP_BE16(p, v)
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#define POP32(p, v) POP_BE32(p, v)
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#define POP64(p, v) POP_BE64(p, v)
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#define POP_N(p, v, n) memcpy(v, p, n); p += n
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#define PUSH8(p, v) PUSH_BE8(p, v)
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#define PUSH16(p, v) PUSH_BE16(p, v)
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#define PUSH32(p, v) PUSH_BE32(p, v)
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#define PUSH64(p, v) PUSH_BE64(p, v)
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#define PUSH_N(p, v, n) memcpy(p, v, n); p += n
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static inline int detect_endian() {
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union {
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char c;
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short s;
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} u;
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u.s = 0x1122;
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return u.c ==0x11 ? BIG_ENDIAN : LITTLE_ENDIAN;
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}
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#ifdef __cplusplus
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template <typename T>
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uint8_t* serialize(uint8_t* buf, T value, int host_endian = LITTLE_ENDIAN, int buf_endian = BIG_ENDIAN) {
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size_t size = sizeof(T);
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uint8_t* pDst = buf;
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uint8_t* pSrc = (uint8_t*)&value;
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if (host_endian == buf_endian) {
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memcpy(pDst, pSrc, size);
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}
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else {
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for (int i = 0; i < size; ++i) {
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pDst[i] = pSrc[size-i-1];
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}
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}
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return buf+size;
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}
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template <typename T>
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uint8_t* deserialize(uint8_t* buf, T* value, int host_endian = LITTLE_ENDIAN, int buf_endian = BIG_ENDIAN) {
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size_t size = sizeof(T);
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uint8_t* pSrc = buf;
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uint8_t* pDst = (uint8_t*)value;
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if (host_endian == buf_endian) {
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memcpy(pDst, pSrc, size);
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}
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else {
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for (int i = 0; i < size; ++i) {
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pDst[i] = pSrc[size-i-1];
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}
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}
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return buf+size;
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}
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#endif // __cplusplus
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#endif // HV_ENDIAN_H_
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