thread-r0drv-freebsd.c revision 5b281ba489ca18f0380d7efc7a5108b606cce449
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync/* $Id$ */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync/** @file
5b281ba489ca18f0380d7efc7a5108b606cce449vboxsync * IPRT - Threads (Part 1), Ring-0 Driver, FreeBSD.
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync/*
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * Copyright (c) 2007 knut st. osmundsen <bird-src-spam@anduin.net>
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync *
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * Permission is hereby granted, free of charge, to any person
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * obtaining a copy of this software and associated documentation
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * files (the "Software"), to deal in the Software without
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * restriction, including without limitation the rights to use,
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * copy, modify, merge, publish, distribute, sublicense, and/or sell
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * copies of the Software, and to permit persons to whom the
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * Software is furnished to do so, subject to the following
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * conditions:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync *
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * The above copyright notice and this permission notice shall be
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * included in all copies or substantial portions of the Software.
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync *
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * OTHER DEALINGS IN THE SOFTWARE.
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync/*******************************************************************************
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync* Header Files *
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync*******************************************************************************/
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync#include "the-freebsd-kernel.h"
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync#include <iprt/thread.h>
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync#include <iprt/err.h>
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync#include <iprt/assert.h>
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync#include "internal/thread.h"
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsyncRTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync{
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return (RTNATIVETHREAD)curthread;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync}
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsyncRTDECL(int) RTThreadSleep(unsigned cMillies)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync{
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync int rc;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync int cTicks;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync /*
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * 0 ms sleep -> yield.
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync if (!cMillies)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync {
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync RTThreadYield();
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return VINF_SUCCESS;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync }
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync /*
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync * Translate milliseconds into ticks and go to sleep.
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync if (cMillies != RT_INDEFINITE_WAIT)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync {
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync if (hz == 1000)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks = cMillies;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync else if (hz == 100)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks = cMillies / 10;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync else
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync {
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync int64_t cTicks64 = ((uint64_t)cMillies * hz) / 1000;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks = (int)cTicks64;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync if (cTicks != cTicks64)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks = INT_MAX;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync }
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync }
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync else
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks = 0; /* requires giant lock! */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync rc = tsleep((void *)RTThreadSleep,
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync PZERO | PCATCH,
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync "iprtsl", /* max 6 chars */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync cTicks);
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync switch (rc)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync {
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync case 0:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return VINF_SUCCESS;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync case EWOULDBLOCK:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return VERR_TIMEOUT;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync case EINTR:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync case ERESTART:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return VERR_INTERRUPTED;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync default:
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync AssertMsgFailed(("%d\n", rc));
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return VERR_NO_TRANSLATION;
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync }
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync}
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsyncRTDECL(bool) RTThreadYield(void)
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync{
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync uio_yield();
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync return false; /** @todo figure this one ... */
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync}
1f1986470af9f0bb750dd859b142dc2e952deb20vboxsync