Commit Graph

7 Commits

Author SHA1 Message Date
davidxu
add205129c Eliminate atomic operations in thread cancellation functions, it should
reduce overheads of cancellation points.
2006-11-24 09:57:38 +00:00
davidxu
e8a2970aaf Don't inherit THR_FLAGS_NEED_SUSPEND for child process, child process
only has one thread, setting the flag can cause the thread to be
suspended and no another thread will resume it.
2006-10-14 13:40:08 +00:00
davidxu
21e4536026 Replace internal usage of struct umtx with umutex which can supports
real-time if we want, no functionality is changed.
2006-09-06 04:04:10 +00:00
davidxu
31f2b819c6 WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
jasone
3668a2e494 In preparation for a new malloc implementation:
* Add posix_memalign().

  * Move calloc() from calloc.c to malloc.c.  Add a calloc() implementation in
    rtld-elf in order to make the loader happy (even though calloc() isn't
    used in rtld-elf).

  * Add _malloc_prefork() and _malloc_postfork(), and use them instead of
    directly manipulating __malloc_lock.

Approved by:	phk, markm (mentor)
2006-01-12 07:28:21 +00:00
davidxu
46ad9344c2 Remove in-progress wait code to sync with libpthread's behavior. 2006-01-03 13:30:23 +00:00
davidxu
f066519e91 Import my recent 1:1 threading working. some features improved includes:
1. fast simple type mutex.
 2. __thread tls works.
 3. asynchronous cancellation works ( using signal ).
 4. thread synchronization is fully based on umtx, mainly, condition
    variable and other synchronization objects were rewritten by using
    umtx directly. those objects can be shared between processes via
    shared memory, it has to change ABI which does not happen yet.
 5. default stack size is increased to 1M on 32 bits platform, 2M for
    64 bits platform.
As the result, some mysql super-smack benchmarks show performance is
improved massivly.

Okayed by: jeff, mtm, rwatson, scottl
2005-04-02 01:20:00 +00:00