Commit graph

10 commits

Author SHA1 Message Date
Lionel Sambuc
d3d33afe9f Experimental pthread compatibility library
This patch adds pthread compatibility by using libmthread.

To use this with a program using pthreads, you have to replace
  #include <pthread>
with
  #define _MTHREADIFY_PTHREADS
  #include <minix/mthreads>

This also changes the initialization function to be a constructor, which
is implicitly called before the call to main. This allows for
conformance with pthreads, while not paying a high price by checking on
each mthread_* call whether the library has been initialized or not.

As mthread_init is now a constructor, it also has been set as static, and
relevent calls removed from programs using it.

Change-Id: I2aa375db557958d2bee9a70d285aabb990c88f00
2014-07-28 17:05:08 +02:00
Ben Gras
6e5a113837 a bit more -Werror compatability
for clang, fix warnings in drivers/, lib/, servers/, sys/, common/.
by turning off fatal warnings (takes effect if the default is on),
fixing warnings or reducing the warning level.

Change-Id: Ia1b4bc877c879ba783158081b59aa6ebb021a50f
2013-08-20 11:37:40 +02:00
Thomas Veerman
76092ddf33 libmthread: don't always verify library initialization
This can be turned back on when the library is compiled with
-DMTHREAD_STRICT (which enables more sanity checks). However,
always performing this check shows up in system profiling results.
2012-05-01 09:55:06 +00:00
Ben Gras
6a73e85ad1 retire _PROTOTYPE
. only good for obsolete K&R support
	. also remove a stray ansi.h and the proto cmd
2012-03-25 16:17:10 +02:00
Thomas Veerman
accaae9b2c libmthread: add guard pages to stacks
Add guard pages to the top of the stack to catch overflow errors.
Moreover, fix a bug where libmthread would keep using a stack that was
just deallocated; a detached thread would deallocate its own stack after
it was finished running).
2012-02-13 13:50:31 +00:00
Thomas Veerman
9b43de2cb3 Clean up mthread 2011-07-27 09:30:26 +00:00
David van Moolenbroek
020277a38f libmthread: support for thread-local storage (keys/specifics) 2011-04-14 11:54:43 +00:00
Thomas Veerman
c8d0edc06a - Refactor mthread structure fields to prevent name clashes
- Remove sanity checks for initialized mutexes and condition variables. This
  significantly boosts performance. The checks can be turned back on by
  compiling libmthread with MTHREAD_STRICT. According to POSIX operations on
  uninitialized variables are a MAY fail if, therefore allowing this
  optimization.
- Test59 has to be accommodated to the lack of sanity checks on uninitialized
  variables in the library. It specifically tests for them and will run into
  segfaults when the checks are absent in the library.
- Fix a few bugs related to the scheduler
- Do some general code cleanups
2011-03-18 10:29:54 +00:00
Thomas Veerman
a7072a5e1c Revamp the mthread library and update test59
Before, the 'main thread' of a process was never taken into account anywhere in
the library, causing mutexes not to work properly (and consequently, neither
did the condition variables). For example, if the 'main thread' (that is, the
thread which is started at the beginning of a process; not a spawned thread by
the library) would lock a mutex, it wasn't actually locked.
2010-09-30 13:44:13 +00:00
Thomas Veerman
12e167f672 Add libmthread and test59 to test the implementation 2010-09-21 12:22:38 +00:00