#ifndef _DB_SWAP_H_
#define _DB_SWAP_H_
#if defined(__cplusplus)
extern "C" {
#endif
#undef M_64_SWAP
#define M_64_SWAP(a) { \
u_int64_t _tmp; \
_tmp = (u_int64_t)a; \
((u_int8_t *)&a)[0] = ((u_int8_t *)&_tmp)[7]; \
((u_int8_t *)&a)[1] = ((u_int8_t *)&_tmp)[6]; \
((u_int8_t *)&a)[2] = ((u_int8_t *)&_tmp)[5]; \
((u_int8_t *)&a)[3] = ((u_int8_t *)&_tmp)[4]; \
((u_int8_t *)&a)[4] = ((u_int8_t *)&_tmp)[3]; \
((u_int8_t *)&a)[5] = ((u_int8_t *)&_tmp)[2]; \
((u_int8_t *)&a)[6] = ((u_int8_t *)&_tmp)[1]; \
((u_int8_t *)&a)[7] = ((u_int8_t *)&_tmp)[0]; \
}
#undef P_64_COPY
#define P_64_COPY(a, b) { \
((u_int8_t *)b)[0] = ((u_int8_t *)a)[0]; \
((u_int8_t *)b)[1] = ((u_int8_t *)a)[1]; \
((u_int8_t *)b)[2] = ((u_int8_t *)a)[2]; \
((u_int8_t *)b)[3] = ((u_int8_t *)a)[3]; \
((u_int8_t *)b)[4] = ((u_int8_t *)a)[4]; \
((u_int8_t *)b)[5] = ((u_int8_t *)a)[5]; \
((u_int8_t *)b)[6] = ((u_int8_t *)a)[6]; \
((u_int8_t *)b)[7] = ((u_int8_t *)a)[7]; \
}
#undef P_64_SWAP
#define P_64_SWAP(a) { \
u_int64_t _tmp; \
P_64_COPY(a, &_tmp); \
((u_int8_t *)a)[0] = ((u_int8_t *)&_tmp)[7]; \
((u_int8_t *)a)[1] = ((u_int8_t *)&_tmp)[6]; \
((u_int8_t *)a)[2] = ((u_int8_t *)&_tmp)[5]; \
((u_int8_t *)a)[3] = ((u_int8_t *)&_tmp)[4]; \
((u_int8_t *)a)[4] = ((u_int8_t *)&_tmp)[3]; \
((u_int8_t *)a)[5] = ((u_int8_t *)&_tmp)[2]; \
((u_int8_t *)a)[6] = ((u_int8_t *)&_tmp)[1]; \
((u_int8_t *)a)[7] = ((u_int8_t *)&_tmp)[0]; \
}
#undef P_32_COPY
#define P_32_COPY(a, b) do { \
((u_int8_t *)b)[0] = ((u_int8_t *)a)[0]; \
((u_int8_t *)b)[1] = ((u_int8_t *)a)[1]; \
((u_int8_t *)b)[2] = ((u_int8_t *)a)[2]; \
((u_int8_t *)b)[3] = ((u_int8_t *)a)[3]; \
} while (0)
#undef P_32_COPYSWAP
#define P_32_COPYSWAP(a, b) do { \
((u_int8_t *)b)[0] = ((u_int8_t *)a)[3]; \
((u_int8_t *)b)[1] = ((u_int8_t *)a)[2]; \
((u_int8_t *)b)[2] = ((u_int8_t *)a)[1]; \
((u_int8_t *)b)[3] = ((u_int8_t *)a)[0]; \
} while (0)
#undef P_32_SWAP
#define P_32_SWAP(a) do { \
u_int32_t _tmp; \
P_32_COPY(a, &_tmp); \
P_32_COPYSWAP(&_tmp, a); \
} while (0)
#undef M_32_SWAP
#define M_32_SWAP(a) P_32_SWAP(&a)
#undef P_16_COPY
#define P_16_COPY(a, b) do { \
((u_int8_t *)b)[0] = ((u_int8_t *)a)[0]; \
((u_int8_t *)b)[1] = ((u_int8_t *)a)[1]; \
} while (0)
#undef P_16_COPYSWAP
#define P_16_COPYSWAP(a, b) do { \
((u_int8_t *)b)[0] = ((u_int8_t *)a)[1]; \
((u_int8_t *)b)[1] = ((u_int8_t *)a)[0]; \
} while (0)
#undef P_16_SWAP
#define P_16_SWAP(a) do { \
u_int16_t _tmp; \
P_16_COPY(a, &_tmp); \
P_16_COPYSWAP(&_tmp, a); \
} while (0)
#undef M_16_SWAP
#define M_16_SWAP(a) P_16_SWAP(&a)
#undef SWAP32
#define SWAP32(p) { \
P_32_SWAP(p); \
(p) += sizeof(u_int32_t); \
}
#undef SWAP16
#define SWAP16(p) { \
P_16_SWAP(p); \
(p) += sizeof(u_int16_t); \
}
#undef DB_HTONL_SWAP
#define DB_HTONL_SWAP(env, p) do { \
if (F_ISSET((env), ENV_LITTLEENDIAN)) \
P_32_SWAP(p); \
} while (0)
#undef DB_NTOHL_SWAP
#define DB_NTOHL_SWAP(env, p) do { \
if (F_ISSET((env), ENV_LITTLEENDIAN)) \
P_32_SWAP(p); \
} while (0)
#undef DB_NTOHL_COPYIN
#define DB_NTOHL_COPYIN(env, i, p) do { \
u_int8_t *tmp; \
tmp = (u_int8_t *)&(i); \
if (F_ISSET(env, ENV_LITTLEENDIAN)) { \
tmp[3] = *p++; \
tmp[2] = *p++; \
tmp[1] = *p++; \
tmp[0] = *p++; \
} else { \
memcpy(&i, p, sizeof(u_int32_t)); \
p = (u_int8_t *)p + sizeof(u_int32_t); \
} \
} while (0)
#undef DB_NTOHS_COPYIN
#define DB_NTOHS_COPYIN(env, i, p) do { \
u_int8_t *tmp; \
tmp = (u_int8_t *)&(i); \
if (F_ISSET(env, ENV_LITTLEENDIAN)) { \
tmp[1] = *p++; \
tmp[0] = *p++; \
} else { \
memcpy(&i, p, sizeof(u_int16_t)); \
p = (u_int8_t *)p + sizeof(u_int16_t); \
} \
} while (0)
#undef DB_HTONL_COPYOUT
#define DB_HTONL_COPYOUT(env, p, i) do { \
u_int8_t *tmp; \
tmp = (u_int8_t *)p; \
if (F_ISSET(env, ENV_LITTLEENDIAN)) { \
*tmp++ = ((u_int8_t *)&(i))[3]; \
*tmp++ = ((u_int8_t *)&(i))[2]; \
*tmp++ = ((u_int8_t *)&(i))[1]; \
*tmp++ = ((u_int8_t *)&(i))[0]; \
} else \
memcpy(p, &i, sizeof(u_int32_t)); \
p = (u_int8_t *)p + sizeof(u_int32_t); \
} while (0)
#undef DB_HTONS_COPYOUT
#define DB_HTONS_COPYOUT(env, p, i) do { \
u_int8_t *tmp; \
tmp = (u_int8_t *)p; \
if (F_ISSET(env, ENV_LITTLEENDIAN)) { \
*tmp++ = ((u_int8_t *)&(i))[1]; \
*tmp++ = ((u_int8_t *)&(i))[0]; \
} else \
memcpy(p, &i, sizeof(u_int16_t)); \
p = (u_int8_t *)p + sizeof(u_int16_t); \
} while (0)
#define LOG_SWAPPED(env) !F_ISSET(env, ENV_LITTLEENDIAN)
#define LOGCOPY_32(env, x, p) do { \
if (LOG_SWAPPED(env)) \
P_32_COPYSWAP((p), (x)); \
else \
memcpy((x), (p), sizeof (u_int32_t)); \
} while (0)
#define LOGCOPY_16(env, x, p) do { \
if (LOG_SWAPPED(env)) \
P_16_COPYSWAP((p), (x)); \
else \
memcpy((x), (p), sizeof (u_int16_t)); \
} while (0)
#define LOGCOPY_TOLSN(env, lsnp, p) do { \
LOGCOPY_32((env), &(lsnp)->file, (p)); \
LOGCOPY_32((env), &(lsnp)->offset, \
(u_int8_t *)(p) + sizeof (u_int32_t)); \
} while (0)
#define LOGCOPY_FROMLSN(env, p, lsnp) do { \
LOGCOPY_32((env), (p), &(lsnp)->file); \
LOGCOPY_32((env), \
(u_int8_t *)(p) + sizeof (u_int32_t), &(lsnp)->offset); \
} while (0)
#if defined(__cplusplus)
}
#endif
#endif