Commit Graph

12 Commits

Author SHA1 Message Date
Armin Novak
6698e24228 Fixed leaks, NULL dereferences and broken init. 2015-06-23 21:29:21 +02:00
David FORT
16d36e3083 A malloc() pass on WinPR
This patch treats remaining non-checked mallocs. And changes to calloc in places
where it makes sense
2015-06-22 19:10:00 +02:00
Norbert Federa
1eff1a345e free can handle NULL perfectly fine 2015-05-11 09:07:39 +02:00
Bernhard Miklautz
850de59b55 winpr: add checks for *alloc
Add missing checks if memory allocation was successful. Also adapt
caller(s) when possible.
2015-04-08 11:34:37 +02:00
Zhang Zhaolong
512865011d libwinpr: check return value of realloc.
Signed-off-by: Zhang Zhaolong <zhangzl2013@126.com>
2015-03-11 16:34:38 +08:00
Zhang Zhaolong
e30d1c0f47 libwinpr: fix incorrect usage of realloc.
Signed-off-by: Zhang Zhaolong <zhangzl2013@126.com>
2015-03-11 14:59:56 +08:00
Marc-André Moreau
cdcd290c44 wfreerdp: fix most build warnings 2014-02-10 22:12:13 -05:00
Armin Novak
62356e667c Fixed erroneous patch. 2013-09-05 12:14:34 +02:00
Armin Novak
a3b531c036 Fixed issues found with clang-analyzer 2013-09-05 12:14:33 +02:00
Norbert Federa
3a58934eb2 libwinpr-utils: Use criticalsection with spincount
Use InitializeCriticalSectionAndSpinCount instead of IntializeCriticalSection.
Using spin counts for critical sections of short duration enables the calling
thread to avoid the wait operation in most situations which can dramatically
improve the overall performance on multiprocessor systems.

On Linux this change has no effect because the new winpr critical section
implementation does not use the SpinCount field under Linux because the NPTL
synchronization primitives are implemented using the extremely performant
futex system calls which have this magic already built in.

However, on Mac OS X this change improved the overall performance of the
multithreaded RemoteFX decoder by 25 percent.

I've used a SpinCount of 4000 which avoided 99 percent of the wait calls.
This value is also used by Microsoft's heap manager for its per-heap
critical sections.

Note: This change requires pull request  to be merged.
2013-08-07 18:16:01 +02:00
Norbert Federa
81ef251fc8 winpr: improve and fix locking for data structures
- Improved/completed(almost) winpr's critical section implementation
- Replaced WaitForSingleObject locking with critical sections

Note:
WaitForSingleObject should _never_ be used for granular low-contention
locks as it _always_ enters the kernel.

Just replacing WaitForSingleObject locking in Bufferpool with
EnterCriticalSection boosts the multithreaded rfx decoder
performance by almost 400% on win32.
2013-08-02 12:07:05 +02:00
Marc-André Moreau
5b4aaf276f libfreerdp-core: added reference counter for receive buffers 2013-01-18 13:50:35 -05:00