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Flatten the main loop

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First of all, vm_can_run is a misnomer, it actually means "no request
pending". Moreover, there is no need to check all pending requests
twice, the first time via the inner loop check and then again when
actually processing the requests. We can simply remove the inner loop
and do the checks directly.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Jan Kiszka 2011-02-01 22:15:47 +01:00 committed by Marcelo Tosatti
parent 8e1b90ecc5
commit 46481d3921
1 changed files with 15 additions and 15 deletions
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30
vl.c
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@ -1389,14 +1389,16 @@ void main_loop_wait(int nonblocking)
}
static int vm_can_run(void)
#ifndef CONFIG_IOTHREAD
static int vm_request_pending(void)
{
return !(powerdown_requested ||
reset_requested ||
shutdown_requested ||
debug_requested ||
vmstop_requested);
return powerdown_requested ||
reset_requested ||
shutdown_requested ||
debug_requested ||
vmstop_requested;
}
#endif
qemu_irq qemu_system_powerdown;
@ -1411,21 +1413,19 @@ static void main_loop(void)
qemu_main_loop_start();
for (;;) {
do {
#ifndef CONFIG_IOTHREAD
nonblocking = cpu_exec_all();
if (!vm_can_run()) {
nonblocking = true;
}
nonblocking = cpu_exec_all();
if (vm_request_pending()) {
nonblocking = true;
}
#endif
#ifdef CONFIG_PROFILER
ti = profile_getclock();
ti = profile_getclock();
#endif
main_loop_wait(nonblocking);
main_loop_wait(nonblocking);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
dev_time += profile_getclock() - ti;
#endif
} while (vm_can_run());
if ((r = qemu_debug_requested())) {
vm_stop(r);