Date: Sun, 10 Aug 1997 21:49:38 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: Paul Southworth <pauls@locust.etext.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: MySQL using FreeBSD native threads (3.0) Message-ID: <199708110449.VAA12027@rah.star-gate.com> In-Reply-To: Your message of "Sun, 10 Aug 1997 09:26:45 EDT." <Pine.NEB.3.95.970810092211.7494A-100000@locust.etext.org>
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Hi,
I will review the thread library with respect to all the patches
that I have which are mostly what John mail me and will post patches
later on this week.
Do threads in FreeBSD work?
Yeap , however we need to upgrade it.
Here are tests runs from the ACE library which was compiled with pthread
support and the tests do use threads.
{root} ./run_tests.sh
Starting tests...
running TSS_Test
running Time_Value_Test
running SString_Test
running Naming_Test
running Handle_Set_Test
running Mem_Map_Test
running SV_Shared_Memory_Test
running MM_Shared_Memory_Test
running Mutex_Test
running Timer_Queue_Test
running Task_Test
running Thread_Manager_Test
running Thread_Pool_Test
running Future_Test
running Reactors_Test
running Reactor_Exceptions_Test
C++ exceptions not supported on this platform
running Reactor_Notify_Test
running Reactor_Timer_Test
running Reader_Writer_Test
running SOCK_Test
running Conn_Test
running SPIPE_Test
SPIPE is not supported on this platform
running UPIPE_SAP_Test
threads and/or UPIPE not supported on this platform
running Barrier_Test
running Buffer_Stream_Test
ACE_ASSERT: file Buffer_Stream_Test.cpp, line 185 assertion failed for 'result == -1 && errno == EWOULDBLOCK'.
[: -/: expected integer
Error in log file no line with Ending
ACE_ASSERT: file Buffer_Stream_Test.cpp, line 185 assertion failed for 'result == -1 && errno == EWOULDBLOCK'.
running Priority_Buffer_Test
running Recursive_Mutex_Test
running Time_Service_Test
[: -/: expected integer
Error in log file no line with Ending
running Tokens_Test
[: -/: expected integer
Error in log file no line with Ending
running Map_Manager_Test
running Message_Queue_Test
running Message_Block_Test
running Pipe_Test
running Process_Mutex_Test
running Process_Strategy_Test
running Service_Config_Test
running Priority_Task_Test
running IOStream_Test
Tests complete...
The couple of EWOULDBLOCK errors have been fixed in the old patched
libc_r .
Enjoy,
Amancio
>From The Desk Of Paul Southworth :
> On Wed, 6 Aug 1997, Amancio Hasty wrote:
>
> :Care to just post the questions?
>
> These were sent to jb@cimlogic.com.au but that address bounces now (a
> couple weeks ago it worked, but the mailhost there has been unreachable
> for a week or so).
>
> If you have any answers to these, please copy me since I do not subscribe
> to the hackers list currently.
>
> The questions below refer to porting MySQL to use FreeBSD native threads;
> the work is being done using the 3.0-970618-SNAP release.
>
> 1) There isn't a sched.h file. pthread.h have prototypes for some functions
> that uses sched_param but it's a little problem to use them now :)
>
> 2) I looked into /usr/src/lib/libc_r/uthread/pthread_priv.h and found
> the following:
>
> ----
> struct sched_param {
> int prio; /* Should be named sched_priority */
> void *no_data;
> };
>
> enum schedparam_policy {
> SCHED_RR,
> SCHED_IO,
> SCHED_FIFO,
> SCHED_OTHER
> };
> ----
>
> Shouldn't this be in a sched.h file ?
> It would also be nice if 'prio' would be renamed 'sched_priority'. I
> think this is the standard slot name (at least all other pthread
> implementation uses this)
>
> 3) The following functions are not defined:
> pthread_setprio(), pthread_attr_setprio(),pthread_attr_setscope()
>
> When do you think these will be available?
>
> 4) I have now fixed workarounds for the above cases. All code compiles
> and links clean but when run a test program, pthread_create doesn't
> start a thread. Should threads work at all in FreeBSD 3.0 ?
>
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