mirror of https://gitee.com/openkylin/qemu.git
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
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* General purpose implementation of a simple periodic countdown timer.
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*
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* Copyright (c) 2007 CodeSourcery.
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*
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* This code is licensed under the GNU LGPL.
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*/
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#ifndef PTIMER_H
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#define PTIMER_H
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#include "qemu-common.h"
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#include "qemu/timer.h"
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#include "migration/vmstate.h"
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/* ptimer.c */
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typedef struct ptimer_state ptimer_state;
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typedef void (*ptimer_cb)(void *opaque);
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ptimer_state *ptimer_init(QEMUBH *bh);
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void ptimer_set_period(ptimer_state *s, int64_t period);
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void ptimer_set_freq(ptimer_state *s, uint32_t freq);
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void ptimer_set_limit(ptimer_state *s, uint64_t limit, int reload);
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uint64_t ptimer_get_count(ptimer_state *s);
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void ptimer_set_count(ptimer_state *s, uint64_t count);
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void ptimer_run(ptimer_state *s, int oneshot);
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void ptimer_stop(ptimer_state *s);
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extern const VMStateDescription vmstate_ptimer;
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#define VMSTATE_PTIMER(_field, _state) { \
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.name = (stringify(_field)), \
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.version_id = (1), \
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.vmsd = &vmstate_ptimer, \
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.size = sizeof(ptimer_state *), \
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.flags = VMS_STRUCT|VMS_POINTER, \
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.offset = vmstate_offset_pointer(_state, _field, ptimer_state), \
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}
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#endif
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