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18 Commits

Author SHA1 Message Date
Zdenek Kabelac
05a2d7bcfd Add cast for ptrdiff_t - cleanup gcc warning 2012-03-01 10:31:35 +00:00
Zdenek Kabelac
48d03bb158 Fix usage of DEBUG_ENFORCE_POOL_LOCKING with DEBUG_MEM
Since DEBUG_MEM is storing own extra structure within returned memory chunk,
glibc free must be used directly for posix_memaling() allocated block.
2011-10-23 15:38:02 +00:00
Zdenek Kabelac
9709a27cb6 Aling structure chunk on default aling size
Since we use 8 bytes by default for the pool allocation,
keep the structure aligned with this size.
(Somehow it was not applied in previous commit.)
2011-10-20 14:43:33 +00:00
Zdenek Kabelac
04275a672a Mark chunk memory for free as defined again for valgrind
When DEBUG_MEM is used, the memory is trashed with extra pattern before real
free() is called, and as this memory was marked as non accessible when used with
valgrind, make it again usable.
2011-10-20 13:39:57 +00:00
Zdenek Kabelac
64d62e1ded Add memory pool locking functions
Adding debuging functionality to lock and unlock memory pool.

2 ways to debug code:
crc - is default checksum/hash of the locked pool.
      It gets slower when the pool is larger - so the check is only
      made when VG is finaly released and it has been used more then
      once.Thus the result is rather informative.

mprotect - quite fast all the time - but requires more memory and
           currently it is using posix_memalign() - this could be
	   later modified to use dm_malloc() and align internally.
           Tool segfaults when locked memory is modified and core
	   could be examined for faulty code section (backtrace).

Only fast memory pools could use mprotect for now -
so such debug builds cannot be combined with DEBUG_POOL.
2011-08-11 17:29:04 +00:00
Zdenek Kabelac
1fa8125125 Valgrind updates
Avoid locking sum testing with valgrind compilation.

Make memory unaccessible in the valgrind for dm_pool_abadon_object.

Valgrind hinting should not be needed in _free_chunk for dm_free.
2011-03-30 12:43:32 +00:00
Zdenek Kabelac
f84700a182 Keep pool name also for pool-fast
It's cheap to keep this name - and it is useful for 'non pool debug code'
compilation.
2011-03-10 14:49:01 +00:00
Zdenek Kabelac
abf79b3678 Use static indentifier for internal functions
Functions _align_chunk() and  _new_chunk() are used only internally inside
pool-fast.c - so keep them static inside this object file.
2010-10-26 08:59:05 +00:00
Alasdair Kergon
a65df0e598 Add dm_zalloc and use it and dm_pool_zalloc throughout. 2010-09-30 21:06:50 +00:00
Joe Thornber
1aaf8d589f [MM] Make valgrind aware of the pool allocators
./configure with --enable-valgrind-pool to enable this.
2010-08-09 10:56:01 +00:00
Alasdair Kergon
d01de820d7 Use INTERNAL_ERROR definition consistently in internal error messages. 2010-03-25 18:22:04 +00:00
Milan Broz
d784303591 Helper function to catch memory pool leaks. 2009-04-10 09:56:58 +00:00
Alasdair Kergon
05329c885a more tweaking to get things to compile - dmlib.h for log fns, list.h 2008-11-03 18:59:59 +00:00
Alasdair Kergon
08e5bd5b72 Calculate string size within dm_pool_grow_object. 2008-04-19 15:50:18 +00:00
Alasdair Kergon
1ad58e1121 Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 16:26:07 +00:00
Alasdair Kergon
d031a374f9 Rename _log to dm_log and export.
Fix misc compile-time warnings.
2006-01-31 14:50:38 +00:00
Alasdair Kergon
251d138474 export bitset, pool, hash, malloc 2005-10-16 22:57:20 +00:00
Alasdair Kergon
f569abd28a Code to build and display device dependency tree. 2005-10-16 14:33:22 +00:00