302 lines
12 KiB
C
302 lines
12 KiB
C
/* -------------------------------------------------------------------------
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*
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* timestamp.h
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* Definitions for the SQL92 "timestamp" and "interval" types.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/utils/timestamp.h
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef TIMESTAMP_H
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#define TIMESTAMP_H
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#define TIMESTAMP_MASK(b) (1 << (b))
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#define INTERVAL_MASK(b) (1 << (b))
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/* Macros to handle packing and unpacking the typmod field for intervals */
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#define INTERVAL_FULL_RANGE (0x7FFF)
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#define INTERVAL_RANGE_MASK (0x7FFF)
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#define INTERVAL_FULL_PRECISION (0xFFFF)
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#define INTERVAL_PRECISION_MASK (0xFFFF)
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#define INTERVAL_TYPMOD(p, r) ((((r)&INTERVAL_RANGE_MASK) << 16) | ((p)&INTERVAL_PRECISION_MASK))
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#define INTERVAL_PRECISION(t) ((t) & INTERVAL_PRECISION_MASK)
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#define INTERVAL_RANGE(t) (((t) >> 16) & INTERVAL_RANGE_MASK)
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#define COPY_AND_CHECK_TIMESTAMP(targetTimestamp, size, convertTimeStamp) \
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do { \
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errno_t rc = memcpy_s(targetTimestamp, size, timestamptz_to_str(convertTimeStamp), size); \
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securec_check(rc, "\0", "\0"); \
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} while (0)
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#ifndef FRONTEND_PARSER
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#include "datatype/timestamp.h"
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#include "fmgr.h"
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#include "pgtime.h"
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/*
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* Macros for fmgr-callable functions.
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*
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* For Timestamp, we make use of the same support routines as for int64
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* or float8. Therefore Timestamp is pass-by-reference if and only if
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* int64 or float8 is!
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*/
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#ifdef HAVE_INT64_TIMESTAMP
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#define DatumGetTimestamp(X) ((Timestamp)DatumGetInt64(X))
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#define DatumGetTimestampTz(X) ((TimestampTz)DatumGetInt64(X))
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#define DatumGetIntervalP(X) ((Interval*)DatumGetPointer(X))
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#define TimestampGetDatum(X) Int64GetDatum(X)
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#define TimestampTzGetDatum(X) Int64GetDatum(X)
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#define IntervalPGetDatum(X) PointerGetDatum(X)
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#define PG_GETARG_TIMESTAMP(n) DatumGetTimestamp(PG_GETARG_DATUM(n))
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#define PG_GETARG_TIMESTAMPTZ(n) DatumGetTimestampTz(PG_GETARG_DATUM(n))
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#define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n))
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#define PG_RETURN_TIMESTAMP(x) return TimestampGetDatum(x)
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#define PG_RETURN_TIMESTAMPTZ(x) return TimestampTzGetDatum(x)
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#define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x)
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#else /* !HAVE_INT64_TIMESTAMP */
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#define DatumGetTimestamp(X) ((Timestamp)DatumGetFloat8(X))
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#define DatumGetTimestampTz(X) ((TimestampTz)DatumGetFloat8(X))
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#define DatumGetIntervalP(X) ((Interval*)DatumGetPointer(X))
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#define TimestampGetDatum(X) Float8GetDatum(X)
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#define TimestampTzGetDatum(X) Float8GetDatum(X)
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#define IntervalPGetDatum(X) PointerGetDatum(X)
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#define PG_GETARG_TIMESTAMP(n) DatumGetTimestamp(PG_GETARG_DATUM(n))
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#define PG_GETARG_TIMESTAMPTZ(n) DatumGetTimestampTz(PG_GETARG_DATUM(n))
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#define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n))
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#define PG_RETURN_TIMESTAMP(x) return TimestampGetDatum(x)
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#define PG_RETURN_TIMESTAMPTZ(x) return TimestampTzGetDatum(x)
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#define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x)
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#endif /* HAVE_INT64_TIMESTAMP */
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#ifdef HAVE_INT64_TIMESTAMP
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#define TimestampTzPlusMilliseconds(tz, ms) ((tz) + ((ms) * (int64)1000))
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#else
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#define TimestampTzPlusMilliseconds(tz, ms) ((tz) + ((ms) / 1000.0))
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#endif
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#ifdef PGXC
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#define InvalidGlobalTimestamp ((TimestampTz)0)
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#define GlobalTimestampIsValid(timestamp) ((TimestampTz)(timestamp)) != InvalidGlobalTimestamp
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#endif
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#ifndef MAX_INT32
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#define MAX_INT32 2147483600
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#endif
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#define MAXTIMESTAMPLEN 128
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#define SEC2MILLISEC (1000)
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#define MILLISEC2MICROSEC (1000)
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/*
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* HA wal replication timestamp info
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*/
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typedef struct WalReplicationTimestampInfo {
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char nowTimeStamp[MAXTIMESTAMPLEN + 1];
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char timeoutStamp[MAXTIMESTAMPLEN + 1];
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char lastRecStamp[MAXTIMESTAMPLEN + 1];
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char heartbeatStamp[MAXTIMESTAMPLEN + 1];
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} WalReplicationTimestampInfo;
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void WalReplicationTimestampToString(WalReplicationTimestampInfo *timeStampInfo, TimestampTz nowtime,
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TimestampTz timeout, TimestampTz lastTimestamp, TimestampTz heartbeat);
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/*
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* timestamp.c prototypes
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*/
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extern Datum smalldatetime_eq(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_ne(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_lt(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_gt(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_le(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_ge(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_cmp(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_hash(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_in(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_out(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_recv(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_send(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_smaller(PG_FUNCTION_ARGS);
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extern Datum smalldatetime_larger(PG_FUNCTION_ARGS);
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extern Datum timestamp_in(PG_FUNCTION_ARGS);
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extern Datum input_timestamp_in(char* str, Oid typioparam, int32 typmod, bool can_ignore);
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extern Datum timestamp_out(PG_FUNCTION_ARGS);
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extern Datum timestamp_recv(PG_FUNCTION_ARGS);
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extern Datum timestamp_send(PG_FUNCTION_ARGS);
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extern Datum timestamptypmodin(PG_FUNCTION_ARGS);
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extern Datum timestamptypmodout(PG_FUNCTION_ARGS);
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extern Datum timestamp_transform(PG_FUNCTION_ARGS);
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extern Datum timestamp_scale(PG_FUNCTION_ARGS);
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extern Datum timestamp_eq(PG_FUNCTION_ARGS);
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extern Datum timestamp_ne(PG_FUNCTION_ARGS);
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extern Datum timestamp_lt(PG_FUNCTION_ARGS);
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extern Datum timestamp_le(PG_FUNCTION_ARGS);
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extern Datum timestamp_ge(PG_FUNCTION_ARGS);
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extern Datum timestamp_gt(PG_FUNCTION_ARGS);
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extern Datum timestamp_finite(PG_FUNCTION_ARGS);
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extern Datum timestamp_cmp(PG_FUNCTION_ARGS);
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extern Datum timestamp_sortsupport(PG_FUNCTION_ARGS);
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extern Datum timestamp_hash(PG_FUNCTION_ARGS);
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extern Datum timestamp_smaller(PG_FUNCTION_ARGS);
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extern Datum timestamp_larger(PG_FUNCTION_ARGS);
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extern Datum to_date_default_format(PG_FUNCTION_ARGS);
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extern Datum timestamp_eq_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_ne_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_lt_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_le_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_gt_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_ge_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamp_cmp_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamptz_eq_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_ne_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_lt_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_le_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_gt_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_ge_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_cmp_timestamp(PG_FUNCTION_ARGS);
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extern Datum add_months(PG_FUNCTION_ARGS);
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extern Datum next_day_str(PG_FUNCTION_ARGS);
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extern Datum next_day_int(PG_FUNCTION_ARGS);
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extern Datum last_day(PG_FUNCTION_ARGS);
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extern Datum interval_in(PG_FUNCTION_ARGS);
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extern Datum interval_out(PG_FUNCTION_ARGS);
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extern Datum interval_recv(PG_FUNCTION_ARGS);
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extern Datum interval_send(PG_FUNCTION_ARGS);
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extern Datum intervaltypmodin(PG_FUNCTION_ARGS);
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extern Datum intervaltypmodout(PG_FUNCTION_ARGS);
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extern Datum interval_transform(PG_FUNCTION_ARGS);
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extern Datum interval_scale(PG_FUNCTION_ARGS);
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extern Datum interval_eq_withhead(PG_FUNCTION_ARGS);
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extern Datum interval_eq(PG_FUNCTION_ARGS);
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extern Datum interval_ne(PG_FUNCTION_ARGS);
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extern Datum interval_lt(PG_FUNCTION_ARGS);
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extern Datum interval_le(PG_FUNCTION_ARGS);
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extern Datum interval_ge(PG_FUNCTION_ARGS);
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extern Datum interval_gt(PG_FUNCTION_ARGS);
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extern Datum interval_finite(PG_FUNCTION_ARGS);
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extern Datum interval_cmp(PG_FUNCTION_ARGS);
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extern Datum interval_hash(PG_FUNCTION_ARGS);
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extern Datum interval_smaller(PG_FUNCTION_ARGS);
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extern Datum interval_larger(PG_FUNCTION_ARGS);
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extern Datum interval_justify_interval(PG_FUNCTION_ARGS);
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extern Datum interval_justify_hours(PG_FUNCTION_ARGS);
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extern Datum interval_justify_days(PG_FUNCTION_ARGS);
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extern Datum timestamp_trunc(PG_FUNCTION_ARGS);
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extern Datum interval_trunc(PG_FUNCTION_ARGS);
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extern Datum timestamp_trunc_alias(PG_FUNCTION_ARGS);
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extern Datum interval_trunc_alias(PG_FUNCTION_ARGS);
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extern Datum timestamp_part(PG_FUNCTION_ARGS);
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extern Datum interval_part(PG_FUNCTION_ARGS);
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extern Datum timestamp_zone(PG_FUNCTION_ARGS);
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extern Datum timestamp_izone(PG_FUNCTION_ARGS);
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extern Datum timestamp_timestamptz(PG_FUNCTION_ARGS);
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extern Datum timestamptz_in(PG_FUNCTION_ARGS);
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extern Datum timestamptz_out(PG_FUNCTION_ARGS);
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extern Datum timestamptz_recv(PG_FUNCTION_ARGS);
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extern Datum timestamptz_send(PG_FUNCTION_ARGS);
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extern Datum timestamptztypmodin(PG_FUNCTION_ARGS);
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extern Datum timestamptztypmodout(PG_FUNCTION_ARGS);
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extern Datum timestamptz_scale(PG_FUNCTION_ARGS);
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extern Datum timestamptz_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_zone(PG_FUNCTION_ARGS);
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extern Datum timestamptz_izone(PG_FUNCTION_ARGS);
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extern Datum timestamptz_timestamptz(PG_FUNCTION_ARGS);
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extern Datum interval_um(PG_FUNCTION_ARGS);
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extern Datum interval_pl(PG_FUNCTION_ARGS);
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extern Datum interval_mi(PG_FUNCTION_ARGS);
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extern Datum interval_mul(const Interval* span, float8 factor);
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extern Datum interval_mul(PG_FUNCTION_ARGS);
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extern Datum mul_d_interval(PG_FUNCTION_ARGS);
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extern Datum interval_div(PG_FUNCTION_ARGS);
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extern Datum interval_accum(PG_FUNCTION_ARGS);
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#ifdef PGXC
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extern Datum interval_collect(PG_FUNCTION_ARGS);
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#endif
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extern Datum interval_avg(PG_FUNCTION_ARGS);
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extern Datum timestamp_mi(Timestamp dt1, Timestamp dt2);
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extern Datum timestamp_mi(PG_FUNCTION_ARGS);
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extern Datum timestamp_pl_interval(Timestamp timestamp, const Interval* span);
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extern Datum timestamp_pl_interval(PG_FUNCTION_ARGS);
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extern Datum timestamp_mi_interval(Timestamp timestamp, const Interval* span);
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extern Datum timestamp_mi_interval(PG_FUNCTION_ARGS);
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extern Datum timestamp_age(PG_FUNCTION_ARGS);
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extern Datum timestamp_diff(PG_FUNCTION_ARGS);
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extern int64 timestamp_diff_internal(text *units, TimestampTz dt1, TimestampTz dt2, bool enable_fix = false);
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extern Datum overlaps_timestamp(PG_FUNCTION_ARGS);
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extern Datum timestamptz_pl_interval(PG_FUNCTION_ARGS);
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extern Datum timestamptz_mi_interval(PG_FUNCTION_ARGS);
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extern Datum timestamptz_age(PG_FUNCTION_ARGS);
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extern Datum timestamptz_trunc(PG_FUNCTION_ARGS);
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extern Datum timestamptz_trunc_alias(PG_FUNCTION_ARGS);
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extern Datum timestamptz_part(PG_FUNCTION_ARGS);
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extern Datum now(PG_FUNCTION_ARGS);
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extern Datum statement_timestamp(PG_FUNCTION_ARGS);
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extern Datum clock_timestamp(PG_FUNCTION_ARGS);
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extern Datum pg_postmaster_start_time(PG_FUNCTION_ARGS);
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extern Datum get_node_stat_reset_time(PG_FUNCTION_ARGS);
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extern Datum pg_conf_load_time(PG_FUNCTION_ARGS);
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extern Datum generate_series_timestamp(PG_FUNCTION_ARGS);
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extern Datum generate_series_timestamptz(PG_FUNCTION_ARGS);
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/* Internal routines (not fmgr-callable) */
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extern TimestampTz GetCurrentTimestamp(void);
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extern TimestampTz timestamp2timestamptz(Timestamp timestamp);
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extern void TimestampDifference(TimestampTz start_time, TimestampTz stop_time, long* secs, int* microsecs);
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extern int ComputeTimeStamp(TimestampTz start);
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extern bool TimestampDifferenceExceeds(TimestampTz start_time, TimestampTz stop_time, int msec);
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extern TimestampTz time_t_to_timestamptz(pg_time_t tm);
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extern pg_time_t timestamptz_to_time_t(TimestampTz t);
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extern const char* timestamptz_to_str(TimestampTz t);
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extern int tm2timestamp(struct pg_tm* tm, const fsec_t fsec, const int* tzp, Timestamp* dt);
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extern int timestamp2tm(Timestamp dt, int* tzp, struct pg_tm* tm, fsec_t* fsec, const char** tzn, pg_tz* attimezone);
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extern void dt2time(Timestamp dt, int* hour, int* min, int* sec, fsec_t* fsec);
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extern int interval2tm(Interval span, struct pg_tm* tm, fsec_t* fsec);
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extern int tm2interval(struct pg_tm* tm, fsec_t fsec, Interval* span);
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extern int interval_cmp_internal(Interval* interval1, Interval* interval2);
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extern Timestamp SetEpochTimestamp(void);
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extern void GetEpochTime(struct pg_tm* tm);
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extern int timestamp_cmp_internal(Timestamp dt1, Timestamp dt2);
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/* timestamp comparison works for timestamptz also */
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#define timestamptz_cmp_internal(dt1, dt2) timestamp_cmp_internal(dt1, dt2)
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extern int isoweek2j(int year, int week);
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extern void isoweek2date(int woy, int* year, int* mon, int* mday);
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extern void isoweekdate2date(int isoweek, int isowday, int* year, int* mon, int* mday);
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extern int date2isoweek(int year, int mon, int mday);
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extern int date2isoyear(int year, int mon, int mday);
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extern int date2isoyearday(int year, int mon, int mday);
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#endif // !FRONTEND_PARSER
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#endif /* TIMESTAMP_H */
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