| 1 | /* $Id: thread2-r0drv-freebsd.c 36555 2011-04-05 12:34:09Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Threads (Part 2), 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 | DECLHIDDEN(int) rtThreadNativeInit(void)
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| 44 | {
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| 45 | return VINF_SUCCESS;
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| 46 | }
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| 47 |
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| 48 |
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| 49 | RTDECL(RTTHREAD) RTThreadSelf(void)
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| 50 | {
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| 51 | return rtThreadGetByNative(RTThreadNativeSelf());
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| 52 | }
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| 53 |
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| 54 |
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| 55 | DECLHIDDEN(int) rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType)
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| 56 | {
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| 57 | int iPriority;
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| 58 |
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| 59 | switch (enmType)
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| 60 | {
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| 61 | case RTTHREADTYPE_INFREQUENT_POLLER: iPriority = PZERO + 8; break;
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| 62 | case RTTHREADTYPE_EMULATION: iPriority = PZERO + 4; break;
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| 63 | case RTTHREADTYPE_DEFAULT: iPriority = PZERO; break;
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| 64 | case RTTHREADTYPE_MSG_PUMP: iPriority = PZERO - 4; break;
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| 65 | case RTTHREADTYPE_IO: iPriority = PRIBIO; break;
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| 66 | case RTTHREADTYPE_TIMER: iPriority = PRI_MIN_KERN; break;
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| 67 | default:
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| 68 | AssertMsgFailed(("enmType=%d\n", enmType));
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| 69 | return VERR_INVALID_PARAMETER;
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| 70 | }
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| 71 |
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| 72 | #if __FreeBSD_version < 700000
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| 73 | /* Do like they're doing in subr_ntoskrnl.c... */
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| 74 | mtx_lock_spin(&sched_lock);
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| 75 | #else
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| 76 | thread_lock(curthread);
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| 77 | #endif
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| 78 | sched_prio(curthread, iPriority);
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| 79 | #if __FreeBSD_version < 600000
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| 80 | curthread->td_base_pri = iPriority;
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| 81 | #endif
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| 82 | #if __FreeBSD_version < 700000
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| 83 | mtx_unlock_spin(&sched_lock);
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| 84 | #else
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| 85 | thread_unlock(curthread);
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| 86 | #endif
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| 87 |
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| 88 | return VINF_SUCCESS;
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| 89 | }
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| 90 |
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| 91 |
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| 92 | DECLHIDDEN(int) rtThreadNativeAdopt(PRTTHREADINT pThread)
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| 93 | {
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| 94 | NOREF(pThread);
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| 95 | /* There is nothing special that needs doing here, but the
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| 96 | user really better know what he's cooking. */
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| 97 | return VINF_SUCCESS;
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| 98 | }
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| 99 |
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| 100 |
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| 101 | DECLHIDDEN(void) rtThreadNativeDestroy(PRTTHREADINT pThread)
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| 102 | {
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| 103 | NOREF(pThread);
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| 104 | }
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| 105 |
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| 106 |
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| 107 | /**
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| 108 | * Native thread main function.
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| 109 | *
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| 110 | * @param pvThreadInt The thread structure.
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| 111 | */
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| 112 | static void rtThreadNativeMain(void *pvThreadInt)
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| 113 | {
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| 114 | const struct thread *Self = curthread;
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| 115 | PRTTHREADINT pThreadInt = (PRTTHREADINT)pvThreadInt;
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| 116 | int rc;
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| 117 |
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| 118 | rc = rtThreadMain(pThreadInt, (RTNATIVETHREAD)Self, &pThreadInt->szName[0]);
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| 119 |
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| 120 | #if __FreeBSD_version >= 800002
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| 121 | kproc_exit(rc);
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| 122 | #else
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| 123 | kthread_exit(rc);
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| 124 | #endif
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| 125 | }
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| 126 |
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| 127 |
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| 128 | DECLHIDDEN(int) rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread)
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| 129 | {
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| 130 | int rc;
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| 131 | struct proc *pProc;
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| 132 |
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| 133 | #if __FreeBSD_version >= 800002
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| 134 | rc = kproc_create(rtThreadNativeMain, pThreadInt, &pProc, RFHIGHPID, 0, "%s", pThreadInt->szName);
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| 135 | #else
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| 136 | rc = kthread_create(rtThreadNativeMain, pThreadInt, &pProc, RFHIGHPID, 0, "%s", pThreadInt->szName);
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| 137 | #endif
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| 138 | if (!rc)
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| 139 | {
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| 140 | *pNativeThread = (RTNATIVETHREAD)FIRST_THREAD_IN_PROC(pProc);
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| 141 | rc = VINF_SUCCESS;
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| 142 | }
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| 143 | else
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| 144 | rc = RTErrConvertFromErrno(rc);
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| 145 | return rc;
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| 146 | }
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| 147 |
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