mirror of
https://github.com/postgres/postgres.git
synced 2025-04-22 23:02:54 +03:00
Code & docs review for server instrumentation patch. File timestamps
should surely be timestamptz not timestamp; fix some but not all of the holes in check_and_make_absolute(); other minor cleanup. Also put in the missed catversion bump.
This commit is contained in:
Tom Lane
parent
cb29f669b0
commit
a43ea120bf
@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.278 2005/08/12 15:57:48 momjian Exp $
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.279 2005/08/12 18:23:53 tgl Exp $
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PostgreSQL documentation
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-->
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@ -9072,13 +9072,13 @@ SELECT set_config('log_statement_stats', 'off', false);
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<para>
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The functions shown in <xref
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linkend="functions-admin-signal-table"> sends control signals to
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other server processes. Use of this function is restricted
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linkend="functions-admin-signal-table"> send control signals to
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other server processes. Use of these functions is restricted
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to superusers.
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</para>
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<table id="functions-admin-signal-table">
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<title>Backend Signalling Functions</title>
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<title>Server Signalling Functions</title>
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<tgroup cols="3">
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<thead>
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<row><entry>Name</entry> <entry>Return Type</entry> <entry>Description</entry>
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@ -9088,7 +9088,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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<tbody>
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<row>
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<entry>
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<literal><function>pg_cancel_backend</function>(<parameter>pid</parameter>)</literal>
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<literal><function>pg_cancel_backend</function>(<parameter>pid</parameter> <type>int</>)</literal>
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</entry>
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<entry><type>int</type></entry>
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<entry>Cancel a backend's current query</entry>
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@ -9098,7 +9098,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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<literal><function>pg_reload_conf</function>()</literal>
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</entry>
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<entry><type>int</type></entry>
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<entry>Causes server processes to reload their configuration files</entry>
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<entry>Cause server processes to reload their configuration files</entry>
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</row>
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</tbody>
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</tgroup>
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@ -9113,8 +9113,8 @@ SELECT set_config('log_statement_stats', 'off', false);
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</para>
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<para>
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<function>pg_reload_conf</> sends a SIGHUP signal to the
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postmaster, causing the reload of the configuration files
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in all backend processes.
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postmaster, causing reload of the configuration files
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in all server processes.
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</para>
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<indexterm zone="functions-admin">
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@ -9144,7 +9144,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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<tbody>
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<row>
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<entry>
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<literal><function>pg_start_backup</function>(<parameter>label_text</parameter>)</literal>
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<literal><function>pg_start_backup</function>(<parameter>label</> <type>text</>)</literal>
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</entry>
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<entry><type>text</type></entry>
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<entry>Set up for performing on-line backup</entry>
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@ -9219,48 +9219,48 @@ SELECT set_config('log_statement_stats', 'off', false);
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<tbody>
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<row>
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<entry><function>pg_column_size</function>(<parameter>any</parameter>)</entry>
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<entry><function>pg_column_size</function>(<type>any</type>)</entry>
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<entry><type>integer</type></entry>
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<entry>Number of bytes used to store a particular value (possibly compressed)</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_tablespace_size</function>(<parameter>oid</parameter>)</literal>
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<literal><function>pg_tablespace_size</function>(<type>oid</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the tablespace with the specified OID</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_tablespace_size</function>(<parameter>name</parameter>)</literal>
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<literal><function>pg_tablespace_size</function>(<type>name</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the tablespace with the specified name</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_database_size</function>(<parameter>oid</parameter>)</literal>
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<literal><function>pg_database_size</function>(<type>oid</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the database with the specified OID</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_database_size</function>(<parameter>name</parameter>)</literal>
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<literal><function>pg_database_size</function>(<type>name</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the database with the specified name</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_relation_size</function>(<parameter>oid</parameter>)</literal>
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<literal><function>pg_relation_size</function>(<type>oid</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Disk space used by the table or index with the specified OID</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_relation_size</function>(<parameter>text</parameter>)</literal>
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<literal><function>pg_relation_size</function>(<type>text</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Disk space used by the table or index with the specified name.
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@ -9268,7 +9268,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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</row>
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<row>
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<entry>
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<literal><function>pg_complete_relation_size</function>(<parameter>oid</parameter>)</literal>
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<literal><function>pg_complete_relation_size</function>(<type>oid</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the table with the specified OID,
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@ -9276,7 +9276,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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</row>
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<row>
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<entry>
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<literal><function>pg_complete_relation_size</function>(<parameter>text</parameter>)</literal>
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<literal><function>pg_complete_relation_size</function>(<type>text</type>)</literal>
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</entry>
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<entry><type>bigint</type></entry>
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<entry>Total disk space used by the table with the specified name,
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@ -9285,7 +9285,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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</row>
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<row>
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<entry>
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<literal><function>pg_size_pretty</function>(<parameter>bigint</parameter>)</literal>
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<literal><function>pg_size_pretty</function>(<type>bigint</type>)</literal>
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</entry>
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<entry><type>text</type></entry>
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<entry>Converts a size in bytes into a human-readable format with size units</entry>
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@ -9325,11 +9325,11 @@ SELECT set_config('log_statement_stats', 'off', false);
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<para>
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The functions shown in <xref
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linkend="functions-admin-genfile"> provide native file access to
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files on the machine hosting the server. Only files relative to
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the cluster directory are allowed, and the <varname>log_directory</>,
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because the log file directory might be stored outside the
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cluster directory. Use of these functions is restricted to
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superusers.
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files on the machine hosting the server. Only files within the
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database cluster directory and the <varname>log_directory</> may be
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accessed. Use a relative path for files within the cluster directory,
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and a path matching the <varname>log_directory</> configuration setting
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for log files. Use of these functions is restricted to superusers.
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</para>
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<table id="functions-admin-genfile">
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@ -9343,17 +9343,17 @@ SELECT set_config('log_statement_stats', 'off', false);
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<tbody>
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<row>
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<entry>
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<literal><function>pg_file_length</function>(<parameter>filename_text</parameter>)</literal>
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<literal><function>pg_file_length</function>(<parameter>filename</> <type>text</>)</literal>
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<indexterm zone="functions-admin">
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<primary>pg_file_length</primary>
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</indexterm>
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</entry>
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<entry><type>int8</type></entry>
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<entry>Returns the file length</entry>
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<entry>Return the file length</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_ls_dir</function>(<parameter>dirname_text</parameter>,<parameter>fullpath_bool</parameter>)</literal>
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<literal><function>pg_ls_dir</function>(<parameter>dirname</> <type>text</>)</literal>
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<indexterm zone="functions-admin">
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<primary>pg_ls_dir</primary>
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</indexterm>
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@ -9363,18 +9363,17 @@ SELECT set_config('log_statement_stats', 'off', false);
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</row>
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<row>
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<entry>
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<literal><function>pg_read_file</function>(<parameter>filename_text</parameter>,
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<parameter>offset_int8</parameter>,<parameter>length_int8</parameter>)</literal>
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<literal><function>pg_read_file</function>(<parameter>filename</> <type>text</>, <parameter>offset</> <type>int8</>, <parameter>length</> <type>int8</>)</literal>
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</entry>
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<entry><type>text</type></entry>
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<entry>Returns the contents of a text file</entry>
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<entry>Return the contents of a text file</entry>
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</row>
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<row>
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<entry>
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<literal><function>pg_stat_file</function>(<parameter>filename_text</parameter>)</literal>
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<literal><function>pg_stat_file</function>(<parameter>filename</> <type>text</>)</literal>
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</entry>
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<entry><type>record</type></entry>
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<entry>Returns information about the file</entry>
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<entry>Return information about the file</entry>
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</row>
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</tbody>
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</tgroup>
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@ -9385,8 +9384,9 @@ SELECT set_config('log_statement_stats', 'off', false);
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</indexterm>
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<para>
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<function>pg_read_file()</> returns part of a textfile, starting
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at the given offset, returning length bytes. If offset is negative,
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it is treated relative to the end of the file.
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at the given offset, returning at most length bytes (less if the
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end of file is reached first). If offset is negative,
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it is relative to the end of the file.
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</para>
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<indexterm zone="functions-admin">
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@ -9396,18 +9396,25 @@ SELECT set_config('log_statement_stats', 'off', false);
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<function>pg_stat_file()</> returns a record containing the
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length, last accessed timestamp, last modified timestamp,
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creation timestamp, and a flag indicating if it is a directory.
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Use it like this:
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<programlisting>
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SELECT *
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FROM pg_stat_file('filename')
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AS s(length int8, atime timestamptz, mtime timestamptz,
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ctime timestamptz, isdir bool);
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</programlisting>
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</para>
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<para>
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The function shown in <xref
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linkend="functions-admin-logfile"> forces the server
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logfile to be rotated if <varname>redirect_stderr</>
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is used for logging. Use of this functions is restricted
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logfile to be rotated. This works only when <varname>redirect_stderr</>
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is used for logging. Use of this function is restricted
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to superusers.
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</para>
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<table id="functions-admin-logfile">
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<title>Backend Logfile Functions</title>
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<title>Server Logfile Functions</title>
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<tgroup cols="3">
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<thead>
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<row><entry>Name</entry> <entry>Return Type</entry> <entry>Description</entry>
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@ -9423,7 +9430,7 @@ SELECT set_config('log_statement_stats', 'off', false);
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</indexterm>
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</entry>
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<entry><type>int</type></entry>
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<entry>Rotate logfile</entry>
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<entry>Rotate server's logfile</entry>
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</row>
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</tbody>
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</tgroup>
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@ -37,7 +37,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.463 2005/08/12 03:23:51 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.464 2005/08/12 18:23:53 tgl Exp $
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*
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* NOTES
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*
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@ -3382,9 +3382,8 @@ sigusr1_handler(SIGNAL_ARGS)
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}
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}
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if (PgArchPID != 0 && Shutdown == NoShutdown)
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{
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if (CheckPostmasterSignal(PMSIGNAL_WAKEN_ARCHIVER))
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if (CheckPostmasterSignal(PMSIGNAL_WAKEN_ARCHIVER) &&
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PgArchPID != 0 && Shutdown == NoShutdown)
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{
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/*
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* Send SIGUSR1 to archiver process, to wake it up and begin
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@ -3392,10 +3391,13 @@ sigusr1_handler(SIGNAL_ARGS)
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*/
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kill(PgArchPID, SIGUSR1);
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}
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}
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|
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if (CheckPostmasterSignal(PMSIGNAL_ROTATE_LOGFILE) && SysLoggerPID != 0)
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if (CheckPostmasterSignal(PMSIGNAL_ROTATE_LOGFILE) &&
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SysLoggerPID != 0)
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{
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/* Tell syslogger to rotate logfile */
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kill(SysLoggerPID, SIGUSR1);
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}
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PG_SETMASK(&UnBlockSig);
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@ -1,14 +1,15 @@
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/*-------------------------------------------------------------------------
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*
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* genfile.c
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* Functions for direct access to files
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*
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*
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* Copyright (c) 2004, PostgreSQL Global Development Group
|
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* Copyright (c) 2004-2005, PostgreSQL Global Development Group
|
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*
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* Author: Andreas Pflug <pgadmin@pse-consulting.de>
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*
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* IDENTIFICATION
|
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* $PostgreSQL: pgsql/src/backend/utils/adt/genfile.c,v 1.1 2005/08/12 03:24:08 momjian Exp $
|
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* $PostgreSQL: pgsql/src/backend/utils/adt/genfile.c,v 1.2 2005/08/12 18:23:54 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -19,13 +20,15 @@
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#include <unistd.h>
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#include <dirent.h>
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#include "utils/builtins.h"
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#include "miscadmin.h"
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#include "storage/fd.h"
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#include "access/heapam.h"
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#include "catalog/pg_type.h"
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#include "funcapi.h"
|
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#include "miscadmin.h"
|
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#include "postmaster/syslogger.h"
|
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#include "storage/fd.h"
|
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#include "utils/builtins.h"
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#include "utils/memutils.h"
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extern char *Log_directory;
|
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|
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typedef struct
|
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{
|
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@ -33,13 +36,16 @@ typedef struct
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DIR *dirdesc;
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} directory_fctx;
|
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|
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|
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/*
|
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* Return an absolute path. Argument may be absolute or
|
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* relative to the DataDir.
|
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* Validate a path and convert to absolute form.
|
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*
|
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* Argument may be absolute or relative to the DataDir (but we only allow
|
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* absolute paths that match Log_directory).
|
||||
*/
|
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static char *check_and_make_absolute(text *arg)
|
||||
static char *
|
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check_and_make_absolute(text *arg)
|
||||
{
|
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int datadir_len = strlen(DataDir);
|
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int filename_len = VARSIZE(arg) - VARHDRSZ;
|
||||
char *filename = palloc(filename_len + 1);
|
||||
|
||||
@ -52,16 +58,21 @@ static char *check_and_make_absolute(text *arg)
|
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/*
|
||||
* Prevent reference to the parent directory.
|
||||
* "..a.." is a valid file name though.
|
||||
*
|
||||
* XXX this is BROKEN because it fails to prevent "C:.." on Windows.
|
||||
* Need access to "skip_drive" functionality to do it right. (There
|
||||
* is no actual security hole because we'll prepend the DataDir below,
|
||||
* resulting in a just-plain-broken path, but we should give the right
|
||||
* error message instead.)
|
||||
*/
|
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if (strcmp(filename, "..") == 0 || /* beginning */
|
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strncmp(filename, "../", 3) == 0 || /* beginning */
|
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strcmp(filename, "/..") == 0 || /* beginning */
|
||||
if (strcmp(filename, "..") == 0 || /* whole */
|
||||
strncmp(filename, "../", 3) == 0 || /* beginning */
|
||||
strstr(filename, "/../") != NULL || /* middle */
|
||||
strncmp(filename + filename_len - 3, "/..", 3) == 0) /* end */
|
||||
(filename_len >= 3 &&
|
||||
strcmp(filename + filename_len - 3, "/..") == 0)) /* end */
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
|
||||
(errmsg("Reference to a parent directory (\"..\") not allowed"))));
|
||||
(errmsg("reference to parent directory (\"..\") not allowed"))));
|
||||
|
||||
if (is_absolute_path(filename))
|
||||
{
|
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@ -74,12 +85,12 @@ static char *check_and_make_absolute(text *arg)
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||||
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
|
||||
(errmsg("Absolute paths not allowed"))));
|
||||
return NULL;
|
||||
(errmsg("absolute path not allowed"))));
|
||||
return NULL; /* keep compiler quiet */
|
||||
}
|
||||
else
|
||||
{
|
||||
char *absname = palloc(datadir_len + filename_len + 2);
|
||||
char *absname = palloc(strlen(DataDir) + filename_len + 2);
|
||||
sprintf(absname, "%s/%s", DataDir, filename);
|
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pfree(filename);
|
||||
return absname;
|
||||
@ -87,11 +98,16 @@ static char *check_and_make_absolute(text *arg)
|
||||
}
|
||||
|
||||
|
||||
Datum pg_read_file(PG_FUNCTION_ARGS)
|
||||
/*
|
||||
* Read a section of a file, returning it as text
|
||||
*/
|
||||
Datum
|
||||
pg_read_file(PG_FUNCTION_ARGS)
|
||||
{
|
||||
int64 bytes_to_read = PG_GETARG_INT64(2);
|
||||
text *filename_t = PG_GETARG_TEXT_P(0);
|
||||
int64 seek_offset = PG_GETARG_INT64(1);
|
||||
char *buf = 0;
|
||||
int64 bytes_to_read = PG_GETARG_INT64(2);
|
||||
char *buf;
|
||||
size_t nbytes;
|
||||
FILE *file;
|
||||
char *filename;
|
||||
@ -101,107 +117,108 @@ Datum pg_read_file(PG_FUNCTION_ARGS)
|
||||
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
|
||||
(errmsg("must be superuser to read files"))));
|
||||
|
||||
filename = check_and_make_absolute(PG_GETARG_TEXT_P(0));
|
||||
filename = check_and_make_absolute(filename_t);
|
||||
|
||||
if ((file = AllocateFile(filename, PG_BINARY_R)) == NULL)
|
||||
{
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not open file %s for reading: %m", filename)));
|
||||
PG_RETURN_NULL();
|
||||
}
|
||||
errmsg("could not open file \"%s\" for reading: %m",
|
||||
filename)));
|
||||
|
||||
if (fseeko(file, (off_t)seek_offset,
|
||||
if (fseeko(file, (off_t) seek_offset,
|
||||
(seek_offset >= 0) ? SEEK_SET : SEEK_END) != 0)
|
||||
{
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not seek in file %s: %m", filename)));
|
||||
PG_RETURN_NULL();
|
||||
}
|
||||
errmsg("could not seek in file \"%s\": %m", filename)));
|
||||
|
||||
if (bytes_to_read < 0)
|
||||
{
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
||||
errmsg("length cannot be negative")));
|
||||
}
|
||||
errmsg("requested length cannot be negative")));
|
||||
|
||||
buf = palloc(bytes_to_read + VARHDRSZ);
|
||||
/* not sure why anyone thought that int64 length was a good idea */
|
||||
if (bytes_to_read > (MaxAllocSize - VARHDRSZ))
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
||||
errmsg("requested length too large")));
|
||||
|
||||
nbytes = fread(VARDATA(buf), 1, bytes_to_read, file);
|
||||
buf = palloc((Size) bytes_to_read + VARHDRSZ);
|
||||
|
||||
nbytes = fread(VARDATA(buf), 1, (size_t) bytes_to_read, file);
|
||||
|
||||
if (nbytes < 0)
|
||||
{
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not read file %s: %m", filename)));
|
||||
PG_RETURN_NULL();
|
||||
}
|
||||
errmsg("could not read file \"%s\": %m", filename)));
|
||||
|
||||
VARATT_SIZEP(buf) = nbytes + VARHDRSZ;
|
||||
|
||||
pfree(filename);
|
||||
FreeFile(file);
|
||||
pfree(filename);
|
||||
|
||||
PG_RETURN_TEXT_P(buf);
|
||||
}
|
||||
|
||||
|
||||
Datum pg_stat_file(PG_FUNCTION_ARGS)
|
||||
/*
|
||||
* stat a file
|
||||
*/
|
||||
Datum
|
||||
pg_stat_file(PG_FUNCTION_ARGS)
|
||||
{
|
||||
AttInMetadata *attinmeta;
|
||||
char *filename = check_and_make_absolute(PG_GETARG_TEXT_P(0));
|
||||
text *filename_t = PG_GETARG_TEXT_P(0);
|
||||
char *filename;
|
||||
struct stat fst;
|
||||
char lenbuf[30], cbuf[30], abuf[30], mbuf[30], dirbuf[2];
|
||||
char *values[5] = {lenbuf, cbuf, abuf, mbuf, dirbuf};
|
||||
pg_time_t timestamp;
|
||||
Datum values[5];
|
||||
bool isnull[5];
|
||||
HeapTuple tuple;
|
||||
TupleDesc tupdesc = CreateTemplateTupleDesc(5, false);
|
||||
TupleDesc tupdesc;
|
||||
|
||||
if (!superuser())
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
|
||||
(errmsg("must be superuser to get file information"))));
|
||||
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "length", INT8OID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "atime", TIMESTAMPOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 3, "mtime", TIMESTAMPOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 4, "ctime", TIMESTAMPOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 5, "isdir", BOOLOID, -1, 0);
|
||||
attinmeta = TupleDescGetAttInMetadata(tupdesc);
|
||||
filename = check_and_make_absolute(filename_t);
|
||||
|
||||
if (stat(filename, &fst) < 0)
|
||||
{
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not stat file %s: %m", filename)));
|
||||
PG_RETURN_NULL();
|
||||
}
|
||||
else
|
||||
{
|
||||
snprintf(lenbuf, 30, INT64_FORMAT, (int64)fst.st_size);
|
||||
errmsg("could not stat file \"%s\": %m", filename)));
|
||||
|
||||
timestamp = fst.st_atime;
|
||||
pg_strftime(abuf, 30, "%F %T", pg_localtime(×tamp, global_timezone));
|
||||
tupdesc = CreateTemplateTupleDesc(5, false);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 1,
|
||||
"length", INT8OID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 2,
|
||||
"atime", TIMESTAMPTZOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 3,
|
||||
"mtime", TIMESTAMPTZOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 4,
|
||||
"ctime", TIMESTAMPTZOID, -1, 0);
|
||||
TupleDescInitEntry(tupdesc, (AttrNumber) 5,
|
||||
"isdir", BOOLOID, -1, 0);
|
||||
BlessTupleDesc(tupdesc);
|
||||
|
||||
timestamp = fst.st_mtime;
|
||||
pg_strftime(mbuf, 30, "%F %T", pg_localtime(×tamp, global_timezone));
|
||||
values[0] = Int64GetDatum((int64) fst.st_size);
|
||||
values[1] = TimestampTzGetDatum(time_t_to_timestamptz(fst.st_atime));
|
||||
values[2] = TimestampTzGetDatum(time_t_to_timestamptz(fst.st_mtime));
|
||||
values[3] = TimestampTzGetDatum(time_t_to_timestamptz(fst.st_ctime));
|
||||
values[4] = BoolGetDatum(fst.st_mode & S_IFDIR);
|
||||
|
||||
timestamp = fst.st_ctime;
|
||||
pg_strftime(cbuf, 30, "%F %T", pg_localtime(×tamp, global_timezone));
|
||||
memset(isnull, false, sizeof(isnull));
|
||||
|
||||
if (fst.st_mode & S_IFDIR)
|
||||
strcpy(dirbuf, "t");
|
||||
else
|
||||
strcpy(dirbuf, "f");
|
||||
tuple = heap_form_tuple(tupdesc, values, isnull);
|
||||
|
||||
tuple = BuildTupleFromCStrings(attinmeta, values);
|
||||
pfree(filename);
|
||||
|
||||
PG_RETURN_DATUM(HeapTupleGetDatum(tuple));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Datum pg_ls_dir(PG_FUNCTION_ARGS)
|
||||
/*
|
||||
* List a directory (returns the filenames only)
|
||||
*/
|
||||
Datum
|
||||
pg_ls_dir(PG_FUNCTION_ARGS)
|
||||
{
|
||||
FuncCallContext *funcctx;
|
||||
struct dirent *de;
|
||||
@ -227,7 +244,8 @@ Datum pg_ls_dir(PG_FUNCTION_ARGS)
|
||||
if (!fctx->dirdesc)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("%s is not browsable: %m", fctx->location)));
|
||||
errmsg("could not open directory \"%s\": %m",
|
||||
fctx->location)));
|
||||
|
||||
funcctx->user_fctx = fctx;
|
||||
MemoryContextSwitchTo(oldcontext);
|
||||
@ -236,17 +254,16 @@ Datum pg_ls_dir(PG_FUNCTION_ARGS)
|
||||
funcctx = SRF_PERCALL_SETUP();
|
||||
fctx = (directory_fctx*) funcctx->user_fctx;
|
||||
|
||||
if (!fctx->dirdesc) /* not a readable directory */
|
||||
SRF_RETURN_DONE(funcctx);
|
||||
|
||||
while ((de = ReadDir(fctx->dirdesc, fctx->location)) != NULL)
|
||||
{
|
||||
int len = strlen(de->d_name);
|
||||
text *result = palloc(len + VARHDRSZ);
|
||||
text *result;
|
||||
|
||||
if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0)
|
||||
if (strcmp(de->d_name, ".") == 0 ||
|
||||
strcmp(de->d_name, "..") == 0)
|
||||
continue;
|
||||
|
||||
result = palloc(len + VARHDRSZ);
|
||||
VARATT_SIZEP(result) = len + VARHDRSZ;
|
||||
memcpy(VARDATA(result), de->d_name, len);
|
||||
|
||||
@ -254,5 +271,6 @@ Datum pg_ls_dir(PG_FUNCTION_ARGS)
|
||||
}
|
||||
|
||||
FreeDir(fctx->dirdesc);
|
||||
|
||||
SRF_RETURN_DONE(funcctx);
|
||||
}
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/utils/adt/misc.c,v 1.46 2005/08/12 03:24:08 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/utils/adt/misc.c,v 1.47 2005/08/12 18:23:54 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -18,26 +18,19 @@
|
||||
#include <signal.h>
|
||||
#include <dirent.h>
|
||||
|
||||
#include "commands/dbcommands.h"
|
||||
#include "miscadmin.h"
|
||||
#include "storage/procarray.h"
|
||||
#include "storage/pmsignal.h"
|
||||
#include "storage/fd.h"
|
||||
#include "utils/builtins.h"
|
||||
#include "utils/elog.h"
|
||||
#include "funcapi.h"
|
||||
#include "catalog/pg_type.h"
|
||||
#include "catalog/pg_tablespace.h"
|
||||
#include "catalog/pg_type.h"
|
||||
#include "commands/dbcommands.h"
|
||||
#include "funcapi.h"
|
||||
#include "miscadmin.h"
|
||||
#include "postmaster/syslogger.h"
|
||||
#include "storage/fd.h"
|
||||
#include "storage/pmsignal.h"
|
||||
#include "storage/procarray.h"
|
||||
#include "utils/builtins.h"
|
||||
|
||||
#define atooid(x) ((Oid) strtoul((x), NULL, 10))
|
||||
|
||||
typedef struct
|
||||
{
|
||||
char *location;
|
||||
DIR *dirdesc;
|
||||
} directory_fctx;
|
||||
|
||||
|
||||
/*
|
||||
* Check if data is Null
|
||||
@ -150,15 +143,15 @@ pg_rotate_logfile(PG_FUNCTION_ARGS)
|
||||
|
||||
if (!Redirect_stderr)
|
||||
{
|
||||
ereport(NOTICE,
|
||||
(errcode(ERRCODE_WARNING),
|
||||
errmsg("no logfile configured; rotation not supported")));
|
||||
ereport(WARNING,
|
||||
(errmsg("rotation not possible because log redirection not active")));
|
||||
|
||||
PG_RETURN_INT32(0);
|
||||
}
|
||||
|
||||
SendPostmasterSignal(PMSIGNAL_ROTATE_LOGFILE);
|
||||
|
||||
PG_RETURN_INT32(0);
|
||||
PG_RETURN_INT32(1);
|
||||
}
|
||||
|
||||
#ifdef NOT_USED
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.147 2005/07/30 18:20:44 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.148 2005/08/12 18:23:54 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -939,7 +939,7 @@ GetCurrentTimestamp(void)
|
||||
|
||||
gettimeofday(&tp, NULL);
|
||||
|
||||
result = tp.tv_sec -
|
||||
result = (TimestampTz) tp.tv_sec -
|
||||
((POSTGRES_EPOCH_JDATE - UNIX_EPOCH_JDATE) * SECS_PER_DAY);
|
||||
|
||||
#ifdef HAVE_INT64_TIMESTAMP
|
||||
@ -951,6 +951,29 @@ GetCurrentTimestamp(void)
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Convert a time_t to TimestampTz.
|
||||
*
|
||||
* We do not use time_t internally in Postgres, but this is provided for use
|
||||
* by functions that need to interpret, say, a stat(2) result.
|
||||
*/
|
||||
TimestampTz
|
||||
time_t_to_timestamptz(time_t tm)
|
||||
{
|
||||
TimestampTz result;
|
||||
|
||||
result = (TimestampTz) tm -
|
||||
((POSTGRES_EPOCH_JDATE - UNIX_EPOCH_JDATE) * SECS_PER_DAY);
|
||||
|
||||
#ifdef HAVE_INT64_TIMESTAMP
|
||||
result *= USECS_PER_SEC;
|
||||
#endif
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
dt2time(Timestamp jd, int *hour, int *min, int *sec, fsec_t *fsec)
|
||||
{
|
||||
|
||||
@ -37,7 +37,7 @@
|
||||
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.296 2005/08/11 21:11:47 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.297 2005/08/12 18:23:55 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -53,6 +53,6 @@
|
||||
*/
|
||||
|
||||
/* yyyymmddN */
|
||||
#define CATALOG_VERSION_NO 200508111
|
||||
#define CATALOG_VERSION_NO 200508121
|
||||
|
||||
#endif
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.381 2005/08/12 03:24:22 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.382 2005/08/12 18:23:55 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* The script catalog/genbki.sh reads this file and generates .bki
|
||||
@ -3058,12 +3058,12 @@ DESCR("Rotate log file");
|
||||
|
||||
DATA(insert OID = 2623 ( pg_stat_file PGNSP PGUID 12 f f t f v 1 2249 "25" _null_ _null_ _null_ pg_stat_file - _null_ ));
|
||||
DESCR("Return file information");
|
||||
DATA(insert OID = 2624 ( pg_file_length PGNSP PGUID 14 f f t f v 1 20 "25" _null_ _null_ _null_ "SELECT len FROM pg_stat_file($1) AS s(len int8, c timestamp, a timestamp, m timestamp, i bool)" - _null_ ));
|
||||
DATA(insert OID = 2624 ( pg_file_length PGNSP PGUID 14 f f t f v 1 20 "25" _null_ _null_ _null_ "SELECT len FROM pg_stat_file($1) AS s(len int8, a timestamptz, m timestamptz, c timestamptz, i bool)" - _null_ ));
|
||||
DESCR("Return file length");
|
||||
DATA(insert OID = 2625 ( pg_read_file PGNSP PGUID 12 f f t f v 3 25 "25 20 20" _null_ _null_ _null_ pg_read_file - _null_ ));
|
||||
DESCR("Read text from a file");
|
||||
DATA(insert OID = 2626 ( pg_ls_dir PGNSP PGUID 12 f f t t v 1 25 "25" _null_ _null_ _null_ pg_ls_dir - _null_ ));
|
||||
DESCR("List all file in a directory");
|
||||
DESCR("List all files in a directory");
|
||||
|
||||
|
||||
/* Aggregates (moved here from pg_aggregate for 7.3) */
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.53 2005/07/22 05:08:26 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.54 2005/08/12 18:23:56 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -292,6 +292,8 @@ extern Datum pgsql_postmaster_start_time(PG_FUNCTION_ARGS);
|
||||
|
||||
extern TimestampTz GetCurrentTimestamp(void);
|
||||
|
||||
extern TimestampTz time_t_to_timestamptz(time_t tm);
|
||||
|
||||
extern int tm2timestamp(struct pg_tm *tm, fsec_t fsec, int *tzp, Timestamp *dt);
|
||||
extern int timestamp2tm(Timestamp dt, int *tzp, struct pg_tm *tm,
|
||||
fsec_t *fsec, char **tzn, pg_tz *attimezone);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user