src/store_log.cc

   1
   2 /*
   3  * $Id: store_log.cc,v 1.7 1999/05/26 17:08:04 wessels Exp $
   4  *
   5  * DEBUG: section 20    Storage Manager Logging Functions
   6  * AUTHOR: Duane Wessels
   7  *
   8  * SQUID Internet Object Cache  http://squid.nlanr.net/Squid/
   9  * ----------------------------------------------------------
  10  *
  11  *  Squid is the result of efforts by numerous individuals from the
  12  *  Internet community.  Development is led by Duane Wessels of the
  13  *  National Laboratory for Applied Network Research and funded by the
  14  *  National Science Foundation.  Squid is Copyrighted (C) 1998 by
  15  *  Duane Wessels and the University of California San Diego.  Please
  16  *  see the COPYRIGHT file for full details.  Squid incorporates
  17  *  software developed and/or copyrighted by other sources.  Please see
  18  *  the CREDITS file for full details.
  19  *
  20  *  This program is free software; you can redistribute it and/or modify
  21  *  it under the terms of the GNU General Public License as published by
  22  *  the Free Software Foundation; either version 2 of the License, or
  23  *  (at your option) any later version.
  24  *
  25  *  This program is distributed in the hope that it will be useful,
  26  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  *  GNU General Public License for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License
  31  *  along with this program; if not, write to the Free Software
  32  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  33  *
  34  */
  35
  36 #include "squid.h"
  37
  38 static char *storeLogTags[] =
  39 {
  40     "CREATE",
  41     "SWAPIN",
  42     "SWAPOUT",
  43     "RELEASE"
  44 };
  45
  46 static int storelog_fd = -1;
  47
  48 void
  49 storeLog(int tag, const StoreEntry * e)
  50 {
  51     MemBuf mb;
  52     MemObject *mem = e->mem_obj;
  53     HttpReply *reply;
  54     if (storelog_fd < 0)
  55         return;
  56     if (mem == NULL)
  57         return;
  58     if (mem->log_url == NULL) {
  59         debug(20, 1) ("storeLog: NULL log_url for %s\n", mem->url);
  60         storeMemObjectDump(mem);
  61         mem->log_url = xstrdup(mem->url);
  62     }
  63     memBufDefInit(&mb);
  64     reply = mem->reply;
  65     memBufPrintf(&mb, "%9d.%03d %-7s %08X %4d %9d %9d %9d %s %d/%d %s %s\n",
  66         (int) current_time.tv_sec,
  67         (int) current_time.tv_usec / 1000,
  68         storeLogTags[tag],
  69         e->swap_file_number,
  70         reply->sline.status,
  71         (int) reply->date,
  72         (int) reply->last_modified,
  73         (int) reply->expires,
  74         strBuf(reply->content_type) ? strBuf(reply->content_type) : "unknown",
  75         reply->content_length,
  76         (int) (mem->inmem_hi - mem->reply->hdr_sz),
  77         RequestMethodStr[mem->method],
  78         mem->log_url);
  79     file_write_mbuf(storelog_fd, -1, mb, NULL, NULL);
  80 }
  81
  82 void
  83 storeLogRotate(void)
  84 {
  85     char *fname = NULL;
  86     int i;
  87     LOCAL_ARRAY(char, from, MAXPATHLEN);
  88     LOCAL_ARRAY(char, to, MAXPATHLEN);
  89 #ifdef S_ISREG
  90     struct stat sb;
  91 #endif
  92
  93     if (storelog_fd > -1) {
  94         file_close(storelog_fd);
  95         storelog_fd = -1;
  96     }
  97     if ((fname = Config.Log.store) == NULL)
  98         return;
  99     if (strcmp(fname, "none") == 0)
 100         return;
 101 #ifdef S_ISREG
 102     if (stat(fname, &sb) == 0)
 103         if (S_ISREG(sb.st_mode) == 0)
 104             return;
 105 #endif
 106
 107     debug(20, 1) ("storeLogRotate: Rotating.\n");
 108
 109     /* Rotate numbers 0 through N up one */
 110     for (i = Config.Log.rotateNumber; i > 1;) {
 111         i--;
 112         snprintf(from, MAXPATHLEN, "%s.%d", fname, i - 1);
 113         snprintf(to, MAXPATHLEN, "%s.%d", fname, i);
 114         rename(from, to);
 115     }
 116     /* Rotate the current log to .0 */
 117     if (Config.Log.rotateNumber > 0) {
 118         snprintf(to, MAXPATHLEN, "%s.%d", fname, 0);
 119         rename(fname, to);
 120     }
 121     storelog_fd = file_open(fname, O_WRONLY | O_CREAT);
 122     if (storelog_fd < 0) {
 123         debug(50, 0) ("storeLogRotate: %s: %s\n", fname, xstrerror());
 124         debug(20, 1) ("Store logging disabled\n");
 125     }
 126 }
 127
 128 void
 129 storeLogClose(void)
 130 {
 131     if (storelog_fd >= 0)
 132         file_close(storelog_fd);
 133 }
 134
 135 void
 136 storeLogOpen(void)
 137 {
 138     if (strcmp(Config.Log.store, "none") == 0)
 139         storelog_fd = -1;
 140     else
 141         storelog_fd = file_open(Config.Log.store, O_WRONLY | O_CREAT);
 142     if (storelog_fd < 0)
 143         debug(20, 1) ("Store logging disabled\n");
 144 }