diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 23 |
1 files changed, 15 insertions, 8 deletions
@@ -618,6 +618,7 @@ struct qemu_alarm_timer { }; static struct qemu_alarm_timer *alarm_timer; +static int qemu_calculate_timeout(void); static inline int qemu_alarm_pending(void) { @@ -3596,7 +3597,7 @@ static void *kvm_cpu_thread_fn(void *arg) return NULL; } -static void tcg_cpu_exec(void); +static bool tcg_cpu_exec(void); static void *tcg_cpu_thread_fn(void *arg) { @@ -3914,14 +3915,20 @@ static void host_main_loop_wait(int *timeout) } #endif -void main_loop_wait(int timeout) +void main_loop_wait(int nonblocking) { IOHandlerRecord *ioh; fd_set rfds, wfds, xfds; int ret, nfds; struct timeval tv; + int timeout; - qemu_bh_update_timeout(&timeout); + if (nonblocking) + timeout = 0; + else { + timeout = qemu_calculate_timeout(); + qemu_bh_update_timeout(&timeout); + } host_main_loop_wait(&timeout); @@ -4028,7 +4035,7 @@ static int qemu_cpu_exec(CPUState *env) return ret; } -static void tcg_cpu_exec(void) +static bool tcg_cpu_exec(void) { int ret = 0; @@ -4053,6 +4060,7 @@ static void tcg_cpu_exec(void) break; } } + return tcg_has_work(); } static int qemu_calculate_timeout(void) @@ -4062,8 +4070,6 @@ static int qemu_calculate_timeout(void) if (!vm_running) timeout = 5000; - else if (tcg_has_work()) - timeout = 0; else { /* XXX: use timeout computed from timers */ int64_t add; @@ -4123,16 +4129,17 @@ static void main_loop(void) for (;;) { do { + bool nonblocking = false; #ifdef CONFIG_PROFILER int64_t ti; #endif #ifndef CONFIG_IOTHREAD - tcg_cpu_exec(); + nonblocking = tcg_cpu_exec(); #endif #ifdef CONFIG_PROFILER ti = profile_getclock(); #endif - main_loop_wait(qemu_calculate_timeout()); + main_loop_wait(nonblocking); #ifdef CONFIG_PROFILER dev_time += profile_getclock() - ti; #endif |