From 3f2546b2ef55b661fd8dd69682b38992225e86f6 Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Mon, 29 Apr 2019 01:17:54 +0100 Subject: Initial import of qemu-2.4.1 --- qemu-coroutine-sleep.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 qemu-coroutine-sleep.c (limited to 'qemu-coroutine-sleep.c') diff --git a/qemu-coroutine-sleep.c b/qemu-coroutine-sleep.c new file mode 100644 index 00000000..9abb7fdf --- /dev/null +++ b/qemu-coroutine-sleep.c @@ -0,0 +1,41 @@ +/* + * QEMU coroutine sleep + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Stefan Hajnoczi + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#include "block/coroutine.h" +#include "qemu/timer.h" +#include "block/aio.h" + +typedef struct CoSleepCB { + QEMUTimer *ts; + Coroutine *co; +} CoSleepCB; + +static void co_sleep_cb(void *opaque) +{ + CoSleepCB *sleep_cb = opaque; + + qemu_coroutine_enter(sleep_cb->co, NULL); +} + +void coroutine_fn co_aio_sleep_ns(AioContext *ctx, QEMUClockType type, + int64_t ns) +{ + CoSleepCB sleep_cb = { + .co = qemu_coroutine_self(), + }; + sleep_cb.ts = aio_timer_new(ctx, type, SCALE_NS, co_sleep_cb, &sleep_cb); + timer_mod(sleep_cb.ts, qemu_clock_get_ns(type) + ns); + qemu_coroutine_yield(); + timer_del(sleep_cb.ts); + timer_free(sleep_cb.ts); +} -- cgit v1.2.3