104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/* Modified for Unicorn Engine by Nguyen Anh Quynh, 2015 */
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#include "sysemu/sysemu.h"
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#include "hw/hw.h"
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#include "qemu/timer.h"
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#ifdef CONFIG_PPOLL
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#include <poll.h>
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#endif
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#ifdef CONFIG_PRCTL_PR_SET_TIMERSLACK
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#include <sys/prctl.h>
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#endif
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#include "uc_priv.h"
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/***********************************************************/
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/* timers */
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typedef struct QEMUClock {
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/* We rely on BQL to protect the timerlists */
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QLIST_HEAD(, QEMUTimerList) timerlists;
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int64_t last;
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QEMUClockType type;
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bool enabled;
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} QEMUClock;
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static QEMUClock qemu_clocks[QEMU_CLOCK_MAX];
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/**
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* qemu_clock_ptr:
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* @type: type of clock
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*
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* Translate a clock type into a pointer to QEMUClock object.
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*
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* Returns: a pointer to the QEMUClock object
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*/
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static inline QEMUClock *qemu_clock_ptr(QEMUClockType type)
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{
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return &qemu_clocks[type];
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}
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/* return the host CPU cycle counter and handle stop/restart */
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int64_t cpu_get_ticks(void)
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{
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return cpu_get_real_ticks();
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}
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/* return the host CPU monotonic timer and handle stop/restart */
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int64_t cpu_get_clock(void)
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{
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return get_clock();
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}
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int64_t qemu_clock_get_ns(QEMUClockType type)
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{
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int64_t now, last;
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QEMUClock *clock = qemu_clock_ptr(type);
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switch (type) {
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case QEMU_CLOCK_REALTIME:
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return get_clock();
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default:
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case QEMU_CLOCK_VIRTUAL:
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return cpu_get_clock();
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case QEMU_CLOCK_HOST:
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now = get_clock_realtime();
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last = clock->last;
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clock->last = now;
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if (now < last) {
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// notifier_list_notify(&clock->reset_notifiers, &now); // FIXME
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}
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return now;
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}
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}
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