On Mon, 26 Mar 2012 20:15:40 +0200, simendsjo <simend...@gmail.com> wrote:
On Mon, 26 Mar 2012 17:10:34 +0200, Timon Gehr <timon.g...@gmx.ch> wrote:
On 03/26/2012 11:55 AM, simendsjo wrote:
It seems threads created in the c library is totally unknown to D. How
can I make D aware of these threads when there is no library support
for
it?
You may be looking for this:
http://dlang.org/phobos/core_thread.html#thread_attachThis
Thanks, but I tried that too and couldn't get it to work.
I added the following:
extern(C) handler()
{
synchronized // needed here to avoid the GC to collect while
attaching thread?
{
if(!Thread.getThis()) // thread unknown to D
{
thread_attachThis();
assert(Thread.getThis()); // now D knows about it
}
}
GC.collect(); // still segfaults
}
Actually, using attachThis segfaults GC.collect() outside the thread
handling code too.
Some info from gdb:
[New Thread 0xf7cfcb70 (LWP 18614)]
[New Thread 0xf74fbb70 (LWP 18615)]
Program received signal SIGUSR1, User defined signal 1.
0xf7fdd430 in __kernel_vsyscall ()
(gdb) info threads
Id Target Id Frame
3 Thread 0xf74fbb70 (LWP 18615) "main" 0xf7fdd430 in
__kernel_vsyscall ()
2 Thread 0xf7cfcb70 (LWP 18614) "main" 0xf7fdd430 in
__kernel_vsyscall ()
* 1 Thread 0xf7dfd9c0 (LWP 18611) "main" 0xf7fdd430 in
__kernel_vsyscall ()
(gdb) c
Continuing.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xf74fbb70 (LWP 18615)]
0x080855b4 in gc.gcx.Gcx.mark() ()
(gdb) info threads
Id Target Id Frame
* 3 Thread 0xf74fbb70 (LWP 18615) "main" 0x080855b4 in
gc.gcx.Gcx.mark() ()
2 Thread 0xf7cfcb70 (LWP 18614) "main" 0xf7fdd430 in
__kernel_vsyscall ()
1 Thread 0xf7dfd9c0 (LWP 18611) "main" 0xf7fdd430 in
__kernel_vsyscall ()
------------
And if I change the code to:
extern(C) handler()
{
GC.collect();
}
[New Thread 0xf7cfcb70 (LWP 21454)]
[New Thread 0xf74fbb70 (LWP 21455)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xf74fbb70 (LWP 21455)]
0x0808970e in core.thread.thread_suspendAll() ()
(gdb) info threads
Id Target Id Frame
* 3 Thread 0xf74fbb70 (LWP 21455) "main" 0x0808970e in
core.thread.thread_suspendAll() ()
2 Thread 0xf7cfcb70 (LWP 21454) "main" 0xf7fdd430 in
__kernel_vsyscall ()
1 Thread 0xf7dfd9c0 (LWP 21451) "main" 0xf7fdd430 in
__kernel_vsyscall ()
-----
Any idea where I should go from here?
