
/*
 * $Id: store_log.c,v 1.26 2006/09/02 14:08:42 hno Exp $
 *
 * DEBUG: section 20    Storage Manager Logging Functions
 * AUTHOR: Duane Wessels
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

#include "squid.h"

static const char *storeLogTags[] =
{
    "CREATE",
    "SWAPIN",
    "SWAPOUT",
    "RELEASE",
    "SO_FAIL",
};

static Logfile *storelog = NULL;

void
storeLog(int tag, const StoreEntry * e)
{
    MemObject *mem = e->mem_obj;
    HttpReply *reply;
    if (NULL == storelog)
	return;
#if UNUSED_CODE
    if (EBIT_TEST(e->flags, ENTRY_DONT_LOG))
	return;
#endif
    if (mem != NULL) {
	if (mem->log_url == NULL) {
	    debug(20, 1) ("storeLog: NULL log_url for %s\n", mem->url);
	    storeMemObjectDump(mem);
	    mem->log_url = xstrdup(mem->url);
	}
	reply = mem->reply;
	/*
	 * XXX Ok, where should we print the dir number here?
	 * Because if we print it before the swap file number, it'll break
	 * the existing log format.
	 */
	logfilePrintf(storelog, "%9ld.%03d %-7s %02d %08X %s %4d %9ld %9ld %9ld %s %" PRINTF_OFF_T "/%" PRINTF_OFF_T " %s %s\n",
	    (long int) current_time.tv_sec,
	    (int) current_time.tv_usec / 1000,
	    storeLogTags[tag],
	    e->swap_dirn,
	    e->swap_filen,
	    storeKeyText(e->hash.key),
	    reply->sline.status,
	    (long int) reply->date,
	    (long int) reply->last_modified,
	    (long int) reply->expires,
	    strLen(reply->content_type) ? strBuf(reply->content_type) : "unknown",
	    reply->content_length,
	    mem->inmem_hi - mem->reply->hdr_sz,
	    RequestMethodStr[mem->method],
	    mem->log_url);
    } else {
	/* no mem object. Most RELEASE cases */
	logfilePrintf(storelog, "%9ld.%03d %-7s %02d %08X %s   ?         ?         ?         ? ?/? ?/? ? ?\n",
	    (long int) current_time.tv_sec,
	    (int) current_time.tv_usec / 1000,
	    storeLogTags[tag],
	    e->swap_dirn,
	    e->swap_filen,
	    storeKeyText(e->hash.key));
    }
}

void
storeLogRotate(void)
{
    if (NULL == storelog)
	return;
    logfileRotate(storelog);
}

void
storeLogClose(void)
{
    if (NULL == storelog)
	return;
    logfileClose(storelog);
    storelog = NULL;
}

void
storeLogOpen(void)
{
    if (strcmp(Config.Log.store, "none") == 0) {
	debug(20, 1) ("Store logging disabled\n");
	return;
    }
    storelog = logfileOpen(Config.Log.store, 0, 1);
}
