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Full Discussion: Problem in appending the correct log
Operating Systems Solaris Problem in appending the correct log Post 302319732 by filmjbrandon on Tuesday 26th of May 2009 05:13:10 AM
Old 05-26-2009
Considering that you are passing a parameter to the begin function and using it as a key... if you pass anything that's an invalid key, then the begin function will break, which will break the rest of the script.

Code:
sub begin{
my($parm)=@_;
$log_start_time{$parm}=localtime(time());
$log_begin{$parm}=time();
$log_msg{$parm}="** $parm Process **";
}

It would probably be easier/more robust to use objects to accomplish this task.

Code:
$dnbLog = new TrxLogObj("DNB Process");
$otherLog = new TrxLogObj("Other Process");

$dnbLog->start();
$dnbLog->log("Something interesting happened here");

$otherLog->start();
# Do your process stuff here...
$otherLog->stop();

$dnbLog->stop();

This way each object is it's own logging session, with it's own instance variables, one of which is a text string indicating the name of the session, the others are the message array, the filehandle and start and stop times.

This allows you great freedom to start and stop multiple logging sessions, and insulates you from having to use specific keys in your scripts to reference those sessions.

It's relatively trivial to convert your code to the object format, but also might be easier to use one of the many pre-existing Log classes and adapt for your use, just search CPAN.


-FilmJ
 

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LEARN ABOUT XFREE86

putctl

putctl(9F)						   Kernel Functions for Drivers 						putctl(9F)

NAME

       putctl - send a control message to a queue

SYNOPSIS

       #include <sys/stream.h>

       int putctl(queue_t *q, int type);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       q	Queue to which the message is to be sent.

       type	Message type (must be control, not data type).

DESCRIPTION

       putctl()  tests the  type argument to make sure a data type has not been specified, and then attempts to allocate a message block. putctl()
       fails if  type is  M_DATA, M_PROTO, or  M_PCPROTO, or if a message block cannot be allocated. If successful,  putctl() calls  the   put(9E)
       routine of the queue pointed to by  q with the newly allocated and initialized messages.

RETURN VALUES

       On success,  1 is returned. If  type is a data type, or if a message block cannot be allocated, 0 is returned.

CONTEXT

       putctl() can be called from user or interrupt context.

EXAMPLES

       Example 1: Using putctl()

       The   send_ctl()  routine  is  used to pass control messages downstream. M_BREAK messages are handled with  putctl() (line 11). putctl1(9F)
       (line 16) is used for  M_DELAY messages,  so that  parm can be used to specify the length of the delay. In either case, if a message  block
       cannot be allocated  a  variable recording the number of allocation failures
	is incremented (lines 12, 17). If an invalid message type is detected,	cmn_err(9F) panics the system (line 21).

	1  void
	2  send_ctl(wrq, type, parm)
	3      queue_t *wrq;
	4      uchar_t type;
	5      uchar_t parm;
	6  {
	7	  extern int num_alloc_fail;
	8
	9	switch (type) {
       10	  case M_BREAK:
       11	      if (!putctl(wrq->q_next, M_BREAK))
       12		       num_alloc_fail++;
       13		break;
       14
       15	case M_DELAY:
       16	      if (!putctl1(wrq->q_next, M_DELAY, parm))
       17		       num_alloc_fail++;
       18	      break;
       19
       20	default:
       21	      cmn_err(CE_PANIC, "send_ctl: bad message type passed");
       22		break;
       23	  }
       24  }

SEE ALSO

       put(9E), cmn_err(9F), datamsg(9F), putctl1(9F), putnextctl(9F)

       Writing Device Drivers

       STREAMS Programming Guide

SunOS 5.10							    11 Apr 1991 							putctl(9F)
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