Rename the recently-added pg_timezonenames view to pg_timezone_abbrevs,
and create a new view pg_timezone_names that provides information about the zones known in the 'zic' database. Magnus Hagander, with some additional work by Tom Lane.
This commit is contained in:
Tom Lane
parent
7ed5df437d
commit
5ff4f39c0e
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.131 2006/09/16 00:30:11 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.132 2006/09/16 20:14:32 tgl Exp $ -->
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<!--
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Documentation of the system catalogs, directed toward PostgreSQL developers
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-->
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@ -4564,10 +4564,15 @@
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</row>
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<row>
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<entry><link linkend="view-pg-timezonenames"><structname>pg_timezonenames</structname></link></entry>
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<entry><link linkend="view-pg-timezone-abbrevs"><structname>pg_timezone_abbrevs</structname></link></entry>
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<entry>time zone abbreviations</entry>
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</row>
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<row>
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<entry><link linkend="view-pg-timezone-names"><structname>pg_timezone_names</structname></link></entry>
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<entry>time zone names</entry>
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</row>
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<row>
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<entry><link linkend="view-pg-user"><structname>pg_user</structname></link></entry>
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<entry>database users</entry>
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@ -5884,22 +5889,74 @@
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</sect1>
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<sect1 id="view-pg-timezonenames">
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<title><structname>pg_timezonenames</structname></title>
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<sect1 id="view-pg-timezone-abbrevs">
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<title><structname>pg_timezone_abbrevs</structname></title>
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<indexterm zone="view-pg-timezonenames">
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<primary>pg_timezonenames</primary>
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<indexterm zone="view-pg-timezone-abbrevs">
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<primary>pg_timezone_abbrevs</primary>
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</indexterm>
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<para>
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The view <structname>pg_timezonenames</structname> provides a list
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The view <structname>pg_timezone_abbrevs</structname> provides a list
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of time zone abbreviations that are currently recognized by the datetime
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input routines. The contents of this view change when the
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<xref linkend="guc-timezone-abbreviations"> run-time parameter is modified.
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</para>
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<table>
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<title><structname>pg_timezonenames</> Columns</title>
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<title><structname>pg_timezone_abbrevs</> Columns</title>
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<tgroup cols=3>
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<thead>
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<row>
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<entry>Name</entry>
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<entry>Type</entry>
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<entry>Description</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry><structfield>abbrev</structfield></entry>
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<entry><type>text</type></entry>
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<entry>time zone abbreviation</entry>
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</row>
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<row>
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<entry><structfield>utc_offset</structfield></entry>
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<entry><type>interval</type></entry>
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<entry>offset from UTC (positive means east of Greenwich)</entry>
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</row>
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<row>
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<entry><structfield>is_dst</structfield></entry>
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<entry><type>boolean</type></entry>
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<entry>true if this is a daylight-savings abbreviation</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</sect1>
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<sect1 id="view-pg-timezone-names">
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<title><structname>pg_timezone_names</structname></title>
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<indexterm zone="view-pg-timezone-names">
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<primary>pg_timezone_names</primary>
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</indexterm>
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<para>
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The view <structname>pg_timezone_names</structname> provides a list
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of time zone names that are recognized by <command>SET TIMEZONE</>,
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along with their associated abbreviations, UTC offsets,
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and daylight-savings status.
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Unlike the abbreviations shown in <link
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linkend="view-pg-timezone-abbrevs"><structname>pg_timezone_abbrevs</structname></link>, many of these names imply a set of daylight-savings transition
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date rules. Therefore, the associated information changes across local DST
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boundaries. The displayed information is computed based on the current
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value of <function>CURRENT_TIMESTAMP</>.
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</para>
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<table>
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<title><structname>pg_timezone_names</> Columns</title>
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<tgroup cols=3>
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<thead>
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@ -5913,6 +5970,11 @@
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<row>
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<entry><structfield>name</structfield></entry>
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<entry><type>text</type></entry>
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<entry>time zone name</entry>
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</row>
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<row>
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<entry><structfield>abbrev</structfield></entry>
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<entry><type>text</type></entry>
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<entry>time zone abbreviation</entry>
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</row>
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<row>
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@ -5923,7 +5985,7 @@
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<row>
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<entry><structfield>is_dst</structfield></entry>
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<entry><type>boolean</type></entry>
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<entry>true if this is a daylight-savings zone</entry>
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<entry>true if currently observing daylight savings</entry>
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</row>
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</tbody>
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</tgroup>
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 1996-2006, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.30 2006/08/19 01:36:24 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.31 2006/09/16 20:14:33 tgl Exp $
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*/
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CREATE VIEW pg_roles AS
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@ -186,10 +186,11 @@ CREATE RULE pg_settings_n AS
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GRANT SELECT, UPDATE ON pg_settings TO PUBLIC;
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CREATE VIEW pg_timezonenames AS
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SELECT *
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FROM pg_timezonenames() AS T
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(name text, utc_offset interval, is_dst boolean);
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CREATE VIEW pg_timezone_abbrevs AS
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SELECT * FROM pg_timezone_abbrevs();
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CREATE VIEW pg_timezone_names AS
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SELECT * FROM pg_timezone_names();
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-- Statistics views
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.170 2006/09/04 01:26:27 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.171 2006/09/16 20:14:33 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -3839,21 +3839,21 @@ InstallTimeZoneAbbrevs(tzEntry *abbrevs, int n)
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/*
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* This set-returning function reads all the available time zone abbreviations
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* and returns a set of (name, utc_offset, is_dst).
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* and returns a set of (abbrev, utc_offset, is_dst).
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*/
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Datum
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pg_timezonenames(PG_FUNCTION_ARGS)
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pg_timezone_abbrevs(PG_FUNCTION_ARGS)
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{
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FuncCallContext *funcctx;
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int *pindex;
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Datum result;
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Interval *resInterval;
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HeapTuple tuple;
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Datum values[3];
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bool nulls[3];
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char buffer[TOKMAXLEN + 1];
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unsigned char *p;
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struct pg_tm tm;
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Interval *resInterval;
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/* stuff done only on the first call of the function */
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if (SRF_IS_FIRSTCALL())
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@ -3876,11 +3876,11 @@ pg_timezonenames(PG_FUNCTION_ARGS)
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funcctx->user_fctx = (void *) pindex;
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/*
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* build tupdesc for result tuples. This must match the
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* definition of the pg_timezonenames view in system_views.sql
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* build tupdesc for result tuples. This must match this function's
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* pg_proc entry!
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*/
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tupdesc = CreateTemplateTupleDesc(3, false);
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TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name",
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TupleDescInitEntry(tupdesc, (AttrNumber) 1, "abbrev",
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TEXTOID, -1, 0);
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TupleDescInitEntry(tupdesc, (AttrNumber) 2, "utc_offset",
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INTERVALOID, -1, 0);
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@ -3928,3 +3928,114 @@ pg_timezonenames(PG_FUNCTION_ARGS)
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SRF_RETURN_NEXT(funcctx, result);
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}
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/*
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* This set-returning function reads all the available full time zones
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* and returns a set of (name, abbrev, utc_offset, is_dst).
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*/
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Datum
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pg_timezone_names(PG_FUNCTION_ARGS)
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{
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MemoryContext oldcontext;
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FuncCallContext *funcctx;
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pg_tzenum *tzenum;
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pg_tz *tz;
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Datum result;
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HeapTuple tuple;
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Datum values[4];
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bool nulls[4];
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int tzoff;
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struct pg_tm tm;
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fsec_t fsec;
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char *tzn;
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Interval *resInterval;
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struct pg_tm itm;
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/* stuff done only on the first call of the function */
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if (SRF_IS_FIRSTCALL())
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{
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TupleDesc tupdesc;
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/* create a function context for cross-call persistence */
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funcctx = SRF_FIRSTCALL_INIT();
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/*
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* switch to memory context appropriate for multiple function
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* calls
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*/
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oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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/* initialize timezone scanning code */
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tzenum = pg_tzenumerate_start();
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funcctx->user_fctx = (void *) tzenum;
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/*
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* build tupdesc for result tuples. This must match this function's
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* pg_proc entry!
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*/
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tupdesc = CreateTemplateTupleDesc(4, false);
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TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name",
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TEXTOID, -1, 0);
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TupleDescInitEntry(tupdesc, (AttrNumber) 2, "abbrev",
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TEXTOID, -1, 0);
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TupleDescInitEntry(tupdesc, (AttrNumber) 3, "utc_offset",
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INTERVALOID, -1, 0);
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TupleDescInitEntry(tupdesc, (AttrNumber) 4, "is_dst",
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BOOLOID, -1, 0);
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funcctx->tuple_desc = BlessTupleDesc(tupdesc);
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MemoryContextSwitchTo(oldcontext);
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}
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/* stuff done on every call of the function */
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funcctx = SRF_PERCALL_SETUP();
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tzenum = (pg_tzenum *) funcctx->user_fctx;
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/* search for another zone to display */
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for (;;)
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{
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oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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tz = pg_tzenumerate_next(tzenum);
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MemoryContextSwitchTo(oldcontext);
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if (!tz)
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{
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pg_tzenumerate_end(tzenum);
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funcctx->user_fctx = NULL;
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SRF_RETURN_DONE(funcctx);
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}
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/* Convert now() to local time in this zone */
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if (timestamp2tm(GetCurrentTransactionStartTimestamp(),
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&tzoff, &tm, &fsec, &tzn, tz) != 0)
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continue; /* ignore if conversion fails */
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/* Ignore zic's rather silly "Factory" time zone */
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if (tzn && strcmp(tzn, "Local time zone must be set--see zic manual page") == 0)
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continue;
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/* Found a displayable zone */
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break;
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}
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MemSet(nulls, 0, sizeof(nulls));
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values[0] = DirectFunctionCall1(textin,
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CStringGetDatum(pg_get_timezone_name(tz)));
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values[1] = DirectFunctionCall1(textin,
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CStringGetDatum(tzn ? tzn : ""));
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MemSet(&itm, 0, sizeof(struct pg_tm));
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itm.tm_sec = -tzoff;
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resInterval = (Interval *) palloc(sizeof(Interval));
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tm2interval(&itm, 0, resInterval);
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values[2] = IntervalPGetDatum(resInterval);
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values[3] = BoolGetDatum(tm.tm_isdst > 0);
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tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);
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result = HeapTupleGetDatum(tuple);
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SRF_RETURN_NEXT(funcctx, result);
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}
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@ -37,7 +37,7 @@
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* Portions Copyright (c) 1996-2006, 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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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.356 2006/09/14 22:05:06 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.357 2006/09/16 20:14:33 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -53,6 +53,6 @@
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*/
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/* yyyymmddN */
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#define CATALOG_VERSION_NO 200609141
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#define CATALOG_VERSION_NO 200609161
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#endif
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2006, 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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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.424 2006/09/14 22:05:06 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.425 2006/09/16 20:14:33 tgl Exp $
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*
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* NOTES
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* The script catalog/genbki.sh reads this file and generates .bki
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@ -3791,7 +3791,9 @@ DATA(insert OID = 2510 ( pg_prepared_statement PGNSP PGUID 12 f f t t s 0 2249
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DESCR("get the prepared statements for this session");
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DATA(insert OID = 2511 ( pg_cursor PGNSP PGUID 12 f f t t s 0 2249 "" _null_ _null_ _null_ pg_cursor - _null_ ));
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DESCR("get the open cursors for this session");
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DATA(insert OID = 2599 ( pg_timezonenames PGNSP PGUID 12 f f t t s 0 2249 "" _null_ _null_ _null_ pg_timezonenames - _null_ ));
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DATA(insert OID = 2599 ( pg_timezone_abbrevs PGNSP PGUID 12 f f t t s 0 2249 "" "{25,1186,16}" "{o,o,o}" "{abbrev,utc_offset,is_dst}" pg_timezone_abbrevs - _null_ ));
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DESCR("get the available time zone abbreviations");
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DATA(insert OID = 2856 ( pg_timezone_names PGNSP PGUID 12 f f t t s 0 2249 "" "{25,25,1186,16}" "{o,o,o,o}" "{name,abbrev,utc_offset,is_dst}" pg_timezone_names - _null_ ));
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DESCR("get the available time zone names");
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/* non-persistent series generator */
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@ -6,7 +6,7 @@
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* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/include/pgtime.h,v 1.12 2006/03/05 15:58:53 momjian Exp $
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* $PostgreSQL: pgsql/src/include/pgtime.h,v 1.13 2006/09/16 20:14:33 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -38,6 +38,7 @@ struct pg_tm
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};
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typedef struct pg_tz pg_tz;
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typedef struct pg_tzenum pg_tzenum;
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extern struct pg_tm *pg_localtime(const pg_time_t *timep, const pg_tz *tz);
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extern struct pg_tm *pg_gmtime(const pg_time_t *timep);
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@ -56,6 +57,10 @@ extern pg_tz *pg_tzset(const char *tzname);
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extern bool tz_acceptable(pg_tz *tz);
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extern const char *pg_get_timezone_name(pg_tz *tz);
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extern pg_tzenum *pg_tzenumerate_start(void);
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extern pg_tz *pg_tzenumerate_next(pg_tzenum *dir);
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extern void pg_tzenumerate_end(pg_tzenum *dir);
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extern pg_tz *global_timezone;
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/* Maximum length of a timezone name (not including trailing null) */
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@ -9,7 +9,7 @@
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* Portions Copyright (c) 1996-2006, 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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* $PostgreSQL: pgsql/src/include/utils/datetime.h,v 1.60 2006/07/25 03:51:22 tgl Exp $
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* $PostgreSQL: pgsql/src/include/utils/datetime.h,v 1.61 2006/09/16 20:14:33 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -303,6 +303,7 @@ extern int j2day(int jd);
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extern bool CheckDateTokenTables(void);
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extern void InstallTimeZoneAbbrevs(tzEntry *abbrevs, int n);
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extern Datum pg_timezonenames(PG_FUNCTION_ARGS);
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extern Datum pg_timezone_abbrevs(PG_FUNCTION_ARGS);
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extern Datum pg_timezone_names(PG_FUNCTION_ARGS);
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#endif /* DATETIME_H */
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@ -1306,7 +1306,8 @@ SELECT viewname, definition FROM pg_views WHERE schemaname <> 'information_schem
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pg_statio_user_tables | SELECT pg_statio_all_tables.relid, pg_statio_all_tables.schemaname, pg_statio_all_tables.relname, pg_statio_all_tables.heap_blks_read, pg_statio_all_tables.heap_blks_hit, pg_statio_all_tables.idx_blks_read, pg_statio_all_tables.idx_blks_hit, pg_statio_all_tables.toast_blks_read, pg_statio_all_tables.toast_blks_hit, pg_statio_all_tables.tidx_blks_read, pg_statio_all_tables.tidx_blks_hit FROM pg_statio_all_tables WHERE (pg_statio_all_tables.schemaname <> ALL (ARRAY['pg_catalog'::name, 'pg_toast'::name, 'information_schema'::name]));
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pg_stats | SELECT n.nspname AS schemaname, c.relname AS tablename, a.attname, s.stanullfrac AS null_frac, s.stawidth AS avg_width, s.stadistinct AS n_distinct, CASE 1 WHEN s.stakind1 THEN s.stavalues1 WHEN s.stakind2 THEN s.stavalues2 WHEN s.stakind3 THEN s.stavalues3 WHEN s.stakind4 THEN s.stavalues4 ELSE NULL::"unknown" END AS most_common_vals, CASE 1 WHEN s.stakind1 THEN s.stanumbers1 WHEN s.stakind2 THEN s.stanumbers2 WHEN s.stakind3 THEN s.stanumbers3 WHEN s.stakind4 THEN s.stanumbers4 ELSE NULL::real[] END AS most_common_freqs, CASE 2 WHEN s.stakind1 THEN s.stavalues1 WHEN s.stakind2 THEN s.stavalues2 WHEN s.stakind3 THEN s.stavalues3 WHEN s.stakind4 THEN s.stavalues4 ELSE NULL::"unknown" END AS histogram_bounds, CASE 3 WHEN s.stakind1 THEN s.stanumbers1[1] WHEN s.stakind2 THEN s.stanumbers2[1] WHEN s.stakind3 THEN s.stanumbers3[1] WHEN s.stakind4 THEN s.stanumbers4[1] ELSE NULL::real END AS correlation FROM (((pg_statistic s JOIN pg_class c ON ((c.oid = s.starelid))) JOIN pg_attribute a ON (((c.oid = a.attrelid) AND (a.attnum = s.staattnum)))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE has_table_privilege(c.oid, 'select'::text);
|
||||
pg_tables | SELECT n.nspname AS schemaname, c.relname AS tablename, pg_get_userbyid(c.relowner) AS tableowner, t.spcname AS "tablespace", c.relhasindex AS hasindexes, c.relhasrules AS hasrules, (c.reltriggers > 0) AS hastriggers FROM ((pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) LEFT JOIN pg_tablespace t ON ((t.oid = c.reltablespace))) WHERE (c.relkind = 'r'::"char");
|
||||
pg_timezonenames | SELECT t.name, t.utc_offset, t.is_dst FROM pg_timezonenames() t(name text, utc_offset interval, is_dst boolean);
|
||||
pg_timezone_abbrevs | SELECT pg_timezone_abbrevs.abbrev, pg_timezone_abbrevs.utc_offset, pg_timezone_abbrevs.is_dst FROM pg_timezone_abbrevs() pg_timezone_abbrevs(abbrev, utc_offset, is_dst);
|
||||
pg_timezone_names | SELECT pg_timezone_names.name, pg_timezone_names.abbrev, pg_timezone_names.utc_offset, pg_timezone_names.is_dst FROM pg_timezone_names() pg_timezone_names(name, abbrev, utc_offset, is_dst);
|
||||
pg_user | SELECT pg_shadow.usename, pg_shadow.usesysid, pg_shadow.usecreatedb, pg_shadow.usesuper, pg_shadow.usecatupd, '********'::text AS passwd, pg_shadow.valuntil, pg_shadow.useconfig FROM pg_shadow;
|
||||
pg_views | SELECT n.nspname AS schemaname, c.relname AS viewname, pg_get_userbyid(c.relowner) AS viewowner, pg_get_viewdef(c.oid) AS definition FROM (pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'v'::"char");
|
||||
rtest_v1 | SELECT rtest_t1.a, rtest_t1.b FROM rtest_t1;
|
||||
|
|
@ -1323,7 +1324,7 @@ SELECT viewname, definition FROM pg_views WHERE schemaname <> 'information_schem
|
|||
shoelace_obsolete | SELECT shoelace.sl_name, shoelace.sl_avail, shoelace.sl_color, shoelace.sl_len, shoelace.sl_unit, shoelace.sl_len_cm FROM shoelace WHERE (NOT (EXISTS (SELECT shoe.shoename FROM shoe WHERE (shoe.slcolor = shoelace.sl_color))));
|
||||
street | SELECT r.name, r.thepath, c.cname FROM ONLY road r, real_city c WHERE (c.outline ## r.thepath);
|
||||
toyemp | SELECT emp.name, emp.age, emp."location", (12 * emp.salary) AS annualsal FROM emp;
|
||||
(47 rows)
|
||||
(48 rows)
|
||||
|
||||
SELECT tablename, rulename, definition FROM pg_rules
|
||||
ORDER BY tablename, rulename;
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/timezone/pgtz.c,v 1.44 2006/07/14 14:52:27 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/timezone/pgtz.c,v 1.45 2006/09/16 20:14:34 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
|
@ -1136,3 +1136,120 @@ pg_timezone_initialize(void)
|
|||
SetConfigOption("timezone", def_tz, PGC_POSTMASTER, PGC_S_ARGV);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Functions to enumerate available timezones
|
||||
*
|
||||
* Note that pg_tzenumerate_next() will return a pointer into the pg_tzenum
|
||||
* structure, so the data is only valid up to the next call.
|
||||
*
|
||||
* All data is allocated using palloc in the current context.
|
||||
*/
|
||||
#define MAX_TZDIR_DEPTH 10
|
||||
|
||||
struct pg_tzenum {
|
||||
int baselen;
|
||||
int depth;
|
||||
DIR *dirdesc[MAX_TZDIR_DEPTH];
|
||||
char *dirname[MAX_TZDIR_DEPTH];
|
||||
struct pg_tz tz;
|
||||
};
|
||||
/* typedef pg_tzenum is declared in pgtime.h */
|
||||
|
||||
pg_tzenum *
|
||||
pg_tzenumerate_start(void)
|
||||
{
|
||||
pg_tzenum *ret = (pg_tzenum *) palloc0(sizeof(pg_tzenum));
|
||||
char *startdir = pstrdup(pg_TZDIR());
|
||||
|
||||
ret->baselen = strlen(startdir) + 1;
|
||||
ret->depth = 0;
|
||||
ret->dirname[0] = startdir;
|
||||
ret->dirdesc[0] = AllocateDir(startdir);
|
||||
if (!ret->dirdesc[0])
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not open directory \"%s\": %m", startdir)));
|
||||
return ret;
|
||||
}
|
||||
|
||||
void
|
||||
pg_tzenumerate_end(pg_tzenum *dir)
|
||||
{
|
||||
while (dir->depth >= 0)
|
||||
{
|
||||
FreeDir(dir->dirdesc[dir->depth]);
|
||||
pfree(dir->dirname[dir->depth]);
|
||||
dir->depth--;
|
||||
}
|
||||
pfree(dir);
|
||||
}
|
||||
|
||||
pg_tz *
|
||||
pg_tzenumerate_next(pg_tzenum *dir)
|
||||
{
|
||||
while (dir->depth >= 0)
|
||||
{
|
||||
struct dirent *direntry;
|
||||
char fullname[MAXPGPATH];
|
||||
struct stat statbuf;
|
||||
|
||||
direntry = ReadDir(dir->dirdesc[dir->depth], dir->dirname[dir->depth]);
|
||||
|
||||
if (!direntry)
|
||||
{
|
||||
/* End of this directory */
|
||||
FreeDir(dir->dirdesc[dir->depth]);
|
||||
pfree(dir->dirname[dir->depth]);
|
||||
dir->depth--;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (direntry->d_name[0] == '.')
|
||||
continue;
|
||||
|
||||
snprintf(fullname, MAXPGPATH, "%s/%s",
|
||||
dir->dirname[dir->depth], direntry->d_name);
|
||||
if (stat(fullname, &statbuf) != 0)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not stat \"%s\": %m", fullname)));
|
||||
|
||||
if (S_ISDIR(statbuf.st_mode))
|
||||
{
|
||||
/* Step into the subdirectory */
|
||||
if (dir->depth >= MAX_TZDIR_DEPTH-1)
|
||||
ereport(ERROR,
|
||||
(errmsg("timezone directory stack overflow")));
|
||||
dir->depth++;
|
||||
dir->dirname[dir->depth] = pstrdup(fullname);
|
||||
dir->dirdesc[dir->depth] = AllocateDir(fullname);
|
||||
if (!dir->dirdesc[dir->depth])
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not open directory \"%s\": %m",
|
||||
fullname)));
|
||||
|
||||
/* Start over reading in the new directory */
|
||||
continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* Load this timezone using tzload() not pg_tzset(),
|
||||
* so we don't fill the cache
|
||||
*/
|
||||
if (tzload(fullname + dir->baselen, &dir->tz.state) != 0)
|
||||
{
|
||||
/* Zone could not be loaded, ignore it */
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Timezone loaded OK. */
|
||||
strcpy(dir->tz.TZname, fullname + dir->baselen);
|
||||
return &dir->tz;
|
||||
}
|
||||
|
||||
/* Nothing more found */
|
||||
return NULL;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue