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# Date Author Comment
f627aab1 10/30/2012 10:30 am Paolo Bonzini

aio: introduce AioContext, move bottom halves there

Start introducing AioContext, which will let us remove globals from
aio.c/async.c, and introduce multiple I/O threads.

The bottom half functions now take an additional AioContext argument.
A bottom half is created with a specific AioContext that remains the...
82cbbdc6 10/30/2012 10:30 am Paolo Bonzini

main-loop: use GSource to poll AIO file descriptors

This lets us remove the hooks for the main loop in async.c.

Reviewed-by: Anthony Liguori <>
Signed-off-by: Paolo Bonzini <>
172061a0 10/30/2012 10:18 am Paolo Bonzini

main-loop: unify qemu_init_main_loop between QEMU and tools

Signed-off-by: Paolo Bonzini <>
a7aae221 05/10/2012 04:33 pm Jan Kiszka

Switch SIG_IPI to SIGUSR1

Use SIGUSR1 unconditionally as SIG_IPI. First, ucontext coroutines tend
to corrupt RT signal masks due to a 32-on-64-bit Linux kernel bug. And,
second, there appears to be no advantage in using RT signals for VCPU
kicking.

Signed-off-by: Jan Kiszka <>...
7c7db755 04/26/2012 09:14 pm Stefano Stabellini

main_loop_wait: block indefinitely

- remove qemu_calculate_timeout;

- explicitly size timeout to uint32_t;

- introduce slirp_update_timeout;

- pass NULL as timeout argument to select in case timeout is the maximum
value;

Signed-off-by: Stefano Stabellini <>...
d3385eb4 04/07/2012 11:34 am Paolo Bonzini

main-loop: interrupt wait when data arrives on a socket

Right now, the main loop is not interrupted when data arrives on a
socket. To fix this, register each socket to interrupt the main loop
with WSAEventSelect. This does not replace select, it only communicates...
d34e8f6e 02/01/2012 10:45 pm Michael Roth

main-loop: For tools, initialize timers as part of qemu_init_main_loop()

In some cases initializing the alarm timers can lead to non-negligable
overhead from programs that link against qemu-tool.o. At least,
setting a max-resolution WinMM alarm timer via mm_start_timer() (the...
cbcfa041 12/22/2011 12:53 pm Paolo Bonzini

link the main loop and its dependencies into the tools

Using the main loop code from QEMU enables tools to operate fully
asynchronously. Advantages include better Windows portability (for some
definition of portability) over glib's.

Signed-off-by: Paolo Bonzini <>
07f35073 12/02/2011 12:50 pm Dong Xu Wang

fix spelling in main directory

Signed-off-by: Dong Xu Wang <>
Signed-off-by: Stefan Hajnoczi <>
44a9b356 10/21/2011 07:14 pm Paolo Bonzini

main-loop: create main-loop.h

Signed-off-by: Paolo Bonzini <>
d3b12f5d 10/21/2011 07:14 pm Paolo Bonzini

main-loop: create main-loop.c

Signed-off-by: Paolo Bonzini <>