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git.ipfire.org Git - thirdparty/squid.git/blob - src/LeakFinder.cc
4 * DEBUG: section 45 Callback Data Registry
5 * AUTHOR: Duane Wessels
7 * SQUID Web Proxy Cache http://www.squid-cache.org/
8 * ----------------------------------------------------------
10 * Squid is the result of efforts by numerous individuals from
11 * the Internet community; see the CONTRIBUTORS file for full
12 * details. Many organizations have provided support for Squid's
13 * development; see the SPONSORS file for full details. Squid is
14 * Copyrighted (C) 2001 by the Regents of the University of
15 * California; see the COPYRIGHT file for full details. Squid
16 * incorporates software developed and/or copyrighted by other
17 * sources; see the CREDITS file for full details.
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
36 * Use these to find memory leaks
40 #include "LeakFinder.h"
42 #include "SquidTime.h"
45 /* ========================================================================= */
47 LeakFinderPtr::LeakFinderPtr(void *p
, const char *f
, const int l
) :
48 file(f
), line(l
), when(squid_curtime
)
54 /* ========================================================================= */
56 LeakFinder::LeakFinder()
58 debugs(45, 3, "LeakFinder constructed");
59 table
= hash_create(cmp
, 1 << 8, hash
);
61 /* if this is desired to reinstate, add a
62 * RegisterWithCacheManager method
64 cachemgrRegister("leaks",
65 "Memory Leak Tracking",
71 LeakFinder::addSome(void *p
, const char *file
, int line
)
73 assert(hash_lookup(table
, p
) == NULL
);
74 LeakFinderPtr
*c
= new LeakFinderPtr(p
, file
, line
);
81 LeakFinder::touch(void *p
, const char *file
, int line
)
84 LeakFinderPtr
*c
= (LeakFinderPtr
*) hash_lookup(table
, p
);
88 c
->when
= squid_curtime
;
93 LeakFinder::freeSome(void *p
, const char *file
, int line
)
96 LeakFinderPtr
*c
= (LeakFinderPtr
*) hash_lookup(table
, p
);
98 hash_remove_link(table
, c
);
105 /* ========================================================================= */
108 LeakFinder::cmp(const void *p1
, const void *p2
)
110 return (char *) p1
- (char *) p2
;
114 LeakFinder::hash(const void *p
, unsigned int mod
)
116 return ((unsigned long) p
>> 8) % mod
;
126 if (squid_curtime
== last_dump
)
129 last_dump
= squid_curtime
;
131 debugs(45, 1, "Tracking " << count
<< " pointers");
137 while ((c
= (LeakFinderPtr
*)hash_next(table
))) {
138 debugs(45, 1, std::setw(20) << c
->key
<< " last used " << std::setw(9) << (squid_curtime
- c
->when
) <<
139 " seconds ago by " << c
->file
<< ":" << c
->line
);
143 #endif /* USE_LEAKFINDER */