The Tor Browser: nsprpub/pr/src/md/unix/darwin.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "primpl.h"

     8 #include <mach/mach_time.h>

    10 void _MD_EarlyInit(void)

    11 {

    12 }

    14 /*

    15  * The multiplier (as a fraction) for converting the Mach absolute time

    16  * unit to nanoseconds.

    17  */

    18 static mach_timebase_info_data_t machTimebaseInfo;

    20 void _PR_Mach_IntervalInit(void)

    21 {

    22     kern_return_t rv;

    24     rv = mach_timebase_info(&machTimebaseInfo);

    25     PR_ASSERT(rv == KERN_SUCCESS);

    26 }

    28 PRIntervalTime _PR_Mach_GetInterval(void)

    29 {

    30     uint64_t time;

    32     /*

    33      * mach_absolute_time returns the time in the Mach absolute time unit.

    34      * Convert it to milliseconds. See Mac Technical Q&A QA1398.

    35      */

    36     time = mach_absolute_time();

    37     time = time * machTimebaseInfo.numer / machTimebaseInfo.denom /

    38            PR_NSEC_PER_MSEC;

    39     return (PRIntervalTime)time;

    40 }  /* _PR_Mach_GetInterval */

    42 PRIntervalTime _PR_Mach_TicksPerSecond(void)

    43 {

    44     return 1000;

    45 }

    47 PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np)

    48 {

    49 #if !defined(_PR_PTHREADS)

    50     if (isCurrent) {

    51 	(void) setjmp(CONTEXT(t));

    52     }

    53     *np = sizeof(CONTEXT(t)) / sizeof(PRWord);

    54     return (PRWord *) CONTEXT(t);

    55 #else

    56 	*np = 0;

    57 	return NULL;

    58 #endif

    59 }

    61 #if !defined(_PR_PTHREADS)

    62 void

    63 _MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri)

    64 {

    65     return;

    66 }

    68 PRStatus

    69 _MD_InitializeThread(PRThread *thread)

    70 {

    71 	return PR_SUCCESS;

    72 }

    74 PRStatus

    75 _MD_WAIT(PRThread *thread, PRIntervalTime ticks)

    76 {

    77     PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));

    78     _PR_MD_SWITCH_CONTEXT(thread);

    79     return PR_SUCCESS;

    80 }

    82 PRStatus

    83 _MD_WAKEUP_WAITER(PRThread *thread)

    84 {

    85     if (thread) {

    86 	PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));

    87     }

    88     return PR_SUCCESS;

    89 }

    91 /* These functions should not be called for Darwin */

    92 void

    93 _MD_YIELD(void)

    94 {

    95     PR_NOT_REACHED("_MD_YIELD should not be called for Darwin.");

    96 }

    98 PRStatus

    99 _MD_CREATE_THREAD(

   100     PRThread *thread,

   101     void (*start) (void *),

   102     PRThreadPriority priority,

   103     PRThreadScope scope,

   104     PRThreadState state,

   105     PRUint32 stackSize)

   106 {

   107     PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Darwin.");

   108 	return PR_FAILURE;

   109 }

   110 #endif /* ! _PR_PTHREADS */

   112 /* darwin.c */

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