auto import from //depot/cupcake/@135843

1 files changed, 50 insertions, 0 deletions

diff --git a/qemu-timer.h b/qemu-timer.h
new file mode 100644
index 0000000..8264f3e
--- /dev/null
+++ b/qemu-timer.h
@@ -0,0 +1,50 @@
+#ifndef QEMU_TIMER_H
+#define QEMU_TIMER_H
+
+#include "qemu-common.h"
+
+/* timers */
+
+typedef struct QEMUClock QEMUClock;
+typedef void QEMUTimerCB(void *opaque);
+
+/* The real time clock should be used only for stuff which does not
+   change the virtual machine state, as it is run even if the virtual
+   machine is stopped. The real time clock has a frequency of 1000
+   Hz. */
+extern QEMUClock *rt_clock;
+
+/* The virtual clock is only run during the emulation. It is stopped
+   when the virtual machine is stopped. Virtual timers use a high
+   precision clock, usually cpu cycles (use ticks_per_sec). */
+extern QEMUClock *vm_clock;
+
+int64_t qemu_get_clock(QEMUClock *clock);
+
+QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque);
+void qemu_free_timer(QEMUTimer *ts);
+void qemu_del_timer(QEMUTimer *ts);
+void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time);
+int qemu_timer_pending(QEMUTimer *ts);
+
+extern int64_t ticks_per_sec;
+
+void qemu_get_timer(QEMUFile *f, QEMUTimer *ts);
+void qemu_put_timer(QEMUFile *f, QEMUTimer *ts);
+
+/* ptimer.c */
+typedef struct ptimer_state ptimer_state;
+typedef void (*ptimer_cb)(void *opaque);
+
+ptimer_state *ptimer_init(QEMUBH *bh);
+void ptimer_set_period(ptimer_state *s, int64_t period);
+void ptimer_set_freq(ptimer_state *s, uint32_t freq);
+void ptimer_set_limit(ptimer_state *s, uint64_t limit, int reload);
+uint64_t ptimer_get_count(ptimer_state *s);
+void ptimer_set_count(ptimer_state *s, uint64_t count);
+void ptimer_run(ptimer_state *s, int oneshot);
+void ptimer_stop(ptimer_state *s);
+void qemu_put_ptimer(QEMUFile *f, ptimer_state *s);
+void qemu_get_ptimer(QEMUFile *f, ptimer_state *s);
+
+#endif