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Refactor cpu_has_work/any_cpu_has_work in cpus.c 

Avoid duplicate use of the function name cpu_has_work, it's confusing,
also their scope. Refactor cpu_has_work to cpu_thread_is_idle and do the
same with any_cpu_has_work.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Jan Kiszka 2011-02-09 16:29:37 +01:00 committed by Marcelo Tosatti
parent 7e97cd8814
commit 1640032283
1 changed files with 23 additions and 20 deletions
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43
cpus.c
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@ -137,29 +137,30 @@ static int cpu_can_run(CPUState *env)
return 1;
}
static int cpu_has_work(CPUState *env)
static bool cpu_thread_is_idle(CPUState *env)
{
if (env->stop)
return 1;
if (env->queued_work_first)
return 1;
if (env->stopped || !vm_running)
return 0;
if (!env->halted)
return 1;
if (qemu_cpu_has_work(env))
return 1;
return 0;
if (env->stop || env->queued_work_first) {
return false;
}
if (env->stopped || !vm_running) {
return true;
}
if (!env->halted || qemu_cpu_has_work(env)) {
return false;
}
return true;
}
static int any_cpu_has_work(void)
static bool all_cpu_threads_idle(void)
{
CPUState *env;
for (env = first_cpu; env != NULL; env = env->next_cpu)
if (cpu_has_work(env))
return 1;
return 0;
for (env = first_cpu; env != NULL; env = env->next_cpu) {
if (!cpu_thread_is_idle(env)) {
return false;
}
}
return true;
}
static void cpu_debug_handler(CPUState *env)
@ -743,8 +744,9 @@ static void qemu_tcg_wait_io_event(void)
{
CPUState *env;
while (!any_cpu_has_work())
while (all_cpu_threads_idle()) {
qemu_cond_timedwait(tcg_halt_cond, &qemu_global_mutex, 1000);
}
qemu_mutex_unlock(&qemu_global_mutex);
@ -765,8 +767,9 @@ static void qemu_tcg_wait_io_event(void)
static void qemu_kvm_wait_io_event(CPUState *env)
{
while (!cpu_has_work(env))
while (cpu_thread_is_idle(env)) {
qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
}
qemu_kvm_eat_signals(env);
qemu_wait_io_event_common(env);
@ -1070,7 +1073,7 @@ bool cpu_exec_all(void)
}
}
exit_request = 0;
return any_cpu_has_work();
return !all_cpu_threads_idle();
}
void set_numa_modes(void)