| 1 | /* $Id: thread-r0drv-freebsd.c 18972 2009-04-16 23:43:08Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Threads (Part 1), Ring-0 Driver, FreeBSD.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2007 knut st. osmundsen <[email protected]>
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 | /*******************************************************************************
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| 32 | * Header Files *
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| 33 | *******************************************************************************/
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| 34 | #include "the-freebsd-kernel.h"
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| 35 |
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| 36 | #include <iprt/thread.h>
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| 37 | #include <iprt/err.h>
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| 38 | #include <iprt/assert.h>
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| 39 |
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| 40 | #include "internal/thread.h"
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| 41 |
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| 42 |
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| 43 | RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
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| 44 | {
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| 45 | return (RTNATIVETHREAD)curthread;
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| 46 | }
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| 47 |
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| 48 |
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| 49 | RTDECL(int) RTThreadSleep(unsigned cMillies)
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| 50 | {
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| 51 | int rc;
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| 52 | int cTicks;
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| 53 |
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| 54 | /*
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| 55 | * 0 ms sleep -> yield.
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| 56 | */
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| 57 | if (!cMillies)
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| 58 | {
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| 59 | RTThreadYield();
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| 60 | return VINF_SUCCESS;
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| 61 | }
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| 62 |
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| 63 | /*
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| 64 | * Translate milliseconds into ticks and go to sleep.
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| 65 | */
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| 66 | if (cMillies != RT_INDEFINITE_WAIT)
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| 67 | {
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| 68 | if (hz == 1000)
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| 69 | cTicks = cMillies;
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| 70 | else if (hz == 100)
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| 71 | cTicks = cMillies / 10;
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| 72 | else
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| 73 | {
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| 74 | int64_t cTicks64 = ((uint64_t)cMillies * hz) / 1000;
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| 75 | cTicks = (int)cTicks64;
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| 76 | if (cTicks != cTicks64)
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| 77 | cTicks = INT_MAX;
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| 78 | }
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| 79 | }
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| 80 | else
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| 81 | cTicks = 0; /* requires giant lock! */
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| 82 |
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| 83 | rc = tsleep((void *)RTThreadSleep,
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| 84 | PZERO | PCATCH,
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| 85 | "iprtsl", /* max 6 chars */
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| 86 | cTicks);
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| 87 | switch (rc)
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| 88 | {
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| 89 | case 0:
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| 90 | return VINF_SUCCESS;
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| 91 | case EWOULDBLOCK:
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| 92 | return VERR_TIMEOUT;
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| 93 | case EINTR:
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| 94 | case ERESTART:
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| 95 | return VERR_INTERRUPTED;
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| 96 | default:
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| 97 | AssertMsgFailed(("%d\n", rc));
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| 98 | return VERR_NO_TRANSLATION;
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| 99 | }
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| 100 | }
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| 101 |
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| 102 |
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| 103 | RTDECL(bool) RTThreadYield(void)
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| 104 | {
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| 105 | uio_yield();
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| 106 | return false; /** @todo figure this one ... */
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| 107 | }
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| 108 |
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