Provide a clean example of how to use the main loop in the tools.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
cpus.c | 5 ----
cpus.h | 1 -
vl.c | 72 +++++++++++++++++++++++++++++++++------------------------------
3 files changed, 38 insertions(+), 40 deletions(-)
diff --git a/cpus.c b/cpus.c
index 715379a..21c6a30 100644
--- a/cpus.c
+++ b/cpus.c
@@ -628,11 +628,6 @@ void qemu_init_cpu_loop(void)
qemu_thread_get_self(&io_thread);
}
-void qemu_main_loop_start(void)
-{
- resume_all_vcpus();
-}
-
void run_on_cpu(CPUState *env, void (*func)(void *data), void *data)
{
struct qemu_work_item wi;
diff --git a/cpus.h b/cpus.h
index 2c06a2b..c085a37 100644
--- a/cpus.h
+++ b/cpus.h
@@ -3,7 +3,6 @@
/* cpus.c */
void qemu_init_cpu_loop(void);
-void qemu_main_loop_start(void);
void resume_all_vcpus(void);
void pause_all_vcpus(void);
void cpu_stop_current(void);
diff --git a/vl.c b/vl.c
index 633183a..e925c44 100644
--- a/vl.c
+++ b/vl.c
@@ -1326,18 +1326,46 @@ void qemu_system_vmstop_request(int reason)
qemu_irq qemu_system_powerdown;
+static bool main_loop_should_exit(void)
+{
+ int r;
+ if (qemu_debug_requested()) {
+ vm_stop(VMSTOP_DEBUG);
+ }
+ if (qemu_shutdown_requested()) {
+ qemu_kill_report();
+ monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
+ if (no_shutdown) {
+ vm_stop(VMSTOP_SHUTDOWN);
+ } else {
+ return true;
+ }
+ }
+ if (qemu_reset_requested()) {
+ pause_all_vcpus();
+ cpu_synchronize_all_states();
+ qemu_system_reset(VMRESET_REPORT);
+ resume_all_vcpus();
+ }
+ if (qemu_powerdown_requested()) {
+ monitor_protocol_event(QEVENT_POWERDOWN, NULL);
+ qemu_irq_raise(qemu_system_powerdown);
+ }
+ r = qemu_vmstop_requested();
+ if (r) {
+ vm_stop(r);
+ }
+ return false;
+}
+
static void main_loop(void)
{
bool nonblocking;
- int last_io __attribute__ ((unused)) = 0;
+ int last_io = 0;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
- int r;
-
- qemu_main_loop_start();
-
- for (;;) {
+ do {
nonblocking = !kvm_enabled() && last_io > 0;
#ifdef CONFIG_PROFILER
ti = profile_getclock();
@@ -1346,34 +1374,7 @@ static void main_loop(void)
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
-
- if (qemu_debug_requested()) {
- vm_stop(VMSTOP_DEBUG);
- }
- if (qemu_shutdown_requested()) {
- qemu_kill_report();
- monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
- if (no_shutdown) {
- vm_stop(VMSTOP_SHUTDOWN);
- } else
- break;
- }
- if (qemu_reset_requested()) {
- pause_all_vcpus();
- cpu_synchronize_all_states();
- qemu_system_reset(VMRESET_REPORT);
- resume_all_vcpus();
- }
- if (qemu_powerdown_requested()) {
- monitor_protocol_event(QEVENT_POWERDOWN, NULL);
- qemu_irq_raise(qemu_system_powerdown);
- }
- if ((r = qemu_vmstop_requested())) {
- vm_stop(r);
- }
- }
- bdrv_close_all();
- pause_all_vcpus();
+ } while (!main_loop_should_exit());
}
static void version(void)
@@ -3330,7 +3331,10 @@ int main(int argc, char **argv, char **envp)
os_setup_post();
+ resume_all_vcpus();
main_loop();
+ bdrv_close_all();
+ pause_all_vcpus();
quit_timers();
net_cleanup();
res_free();
--
1.7.6
