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|Subject: [PATCH] adding SYS_TIME just for fun. | |Hi, | |Whilst I was playing round with the European dates patch I noticed the sysfunc() |that allows you to do :- | |create table test ( da date); |insert into test values (SYS_DATE); | |and have the current system date inserted. | |So I thought it would be nice to have the SYS_TIME facility too. | |I've cloned the function and changed a few things and there you have it, |you can now do: | |create table test2 ( ti time); |insert into test2 values (SYS_TIME);
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* sysfunc.c--
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* process system functions and return a string result
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*
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* Notes:
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* 1) I return a string result because most of the functions cannot return any
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* normal type anyway (e.g. SYS_DATE, SYS_TIME, etc...), and the few that
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* might (SYS_UID or whatever) can just return it as a string - no problem.
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* This keeps the function flexible enough to be of good use.
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*
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* Written by Chad Robinson, chadr@brttech.com
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* Last modified: 04/27/1996
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* -------------------------------------------------------------------------
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <config.h>
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#include <postgres.h>
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#include <miscadmin.h>
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#include <parser/sysfunc.h>
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/*
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* Can't get much more obvious than this. Might need to replace localtime()
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* on older systems...
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*/
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static char *Sysfunc_system_date(void)
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{
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time_t cur_time_secs;
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struct tm *cur_time_expanded;
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static char buf[12]; /* Just for safety, y'understand... */
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time(&cur_time_secs);
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cur_time_expanded = localtime(&cur_time_secs);
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if (EuroDates == 1)
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sprintf(buf, "%2.2d-%2.2d-%4.4d", cur_time_expanded->tm_mday,
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cur_time_expanded->tm_mon+1, cur_time_expanded->tm_year+1900);
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else
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sprintf(buf, "%2.2d-%2.2d-%4.4d", cur_time_expanded->tm_mon+1,
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cur_time_expanded->tm_mday, cur_time_expanded->tm_year+1900);
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return &buf[0];
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}
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static char *Sysfunc_system_time(void)
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{
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time_t cur_time_secs;
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struct tm *cur_time_expanded;
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static char buf[10]; /* Just for safety, y'understand... */
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time(&cur_time_secs);
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cur_time_expanded = localtime(&cur_time_secs);
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sprintf(buf, "%2.2d:%2.2d:%2.2d", cur_time_expanded->tm_hour,
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cur_time_expanded->tm_min, cur_time_expanded->tm_sec);
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return &buf[0];
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}
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char *SystemFunctionHandler(char *funct)
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{
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if (!strcmp(funct, "SYS_DATE"))
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return Sysfunc_system_date();
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if (!strcmp(funct, "SYS_TIME"))
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return Sysfunc_system_time();
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return "*unknown function*";
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}
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#ifdef SYSFUNC_TEST
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/*
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* Chad's rule of coding #4 - never delete a test function, even a stupid
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* one - you always need it 10 minutes after you delete it.
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*/
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void main(void)
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{
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printf("Current system date: %s\n", SystemFunctionHandler("SYS_DATE"));
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return;
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}
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#endif
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