Whoops. I had the mistaken belief that Qemu already used pthreads.
So, the makefiles and configure script need to handle pthreads somehow
(especially on windows.) Pthreads-w32 is refusing to 'make install'
itself into standard lib and include directories. Unlike SDL, there is
no 'pthread-config' to tell us where it lives.
Suppose that on Windows, we tell people to unpack the pthread
distribution within the qemu tree. Qemu's configure script could find
it, build a static pthread library, and link that into Qemu.
This removes the need for the user to:
* read pthreads-w32 documents,
* issue a separate build command for pthreads-w32,
* get confused before realizing that pthreads-w32 doesn't really
support 'make install',
* hack at qemu until it points to the uninstalled pthreads dir,
* copy the pthreads DLL into c:\windows
I'll look at adding this to the configure script.
-john
Christian MICHON wrote:
I managed to make it work (qemu+non blocking IO on windows host),
with a rough estimation of 10% speed increase at the early stage of
windows setup. I expect more once windows installs itself in true
multitasking mode. :)
What you need to do is:
- download pthreads-w32-2-6-0-release.tar.gz and compile it from scratch
(make clean GC)
- you also need to add the following lines inside block.c (usleep is not
present in win32/mingw32)
#ifdef WIN32
void usleep(unsigned long usec)
{
Sleep(usec/1000);
}
#endif
- you need to update the link to include "-lpthreadGC2 -lz", and
keep a copy of the pthreadGC2.dll where qemu.exe will be
(to pu it just in from of "-lz" is just my personal suggestion)
HIH,
Christian
On 10/3/05, Elefterios Stamatogiannakis <[EMAIL PROTECTED]> wrote:
With which pthreads library have you compiled it under windows?
I've tried it with the one here:
ftp://sources.redhat.com/pub/pthreads-win32/
but it didn't compile.
teris.
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