| 1 | /* thread.h
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| 2 | *
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| 3 | * Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005
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| 4 | * by Larry Wall and others
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| 5 | *
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| 6 | * You may distribute under the terms of either the GNU General Public
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| 7 | * License or the Artistic License, as specified in the README file.
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
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| 12 |
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| 13 | #if defined(VMS)
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| 14 | #include <builtins.h>
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| 15 | #endif
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| 16 |
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| 17 | #ifdef WIN32
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| 18 | # include <win32thread.h>
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| 19 | #else
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| 20 | #ifdef NETWARE
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| 21 | # include <nw5thread.h>
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| 22 | #else
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| 23 | # ifdef OLD_PTHREADS_API /* Here be dragons. */
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| 24 | # define DETACH(t) \
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| 25 | STMT_START { \
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| 26 | int _eC_; \
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| 27 | if ((_eC_ = pthread_detach(&(t)->self))) { \
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| 28 | MUTEX_UNLOCK(&(t)->mutex); \
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| 29 | Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
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| 30 | _eC_, __FILE__, __LINE__); \
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| 31 | } \
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| 32 | } STMT_END
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| 33 |
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| 34 | # define PERL_GET_CONTEXT Perl_get_context()
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| 35 | # define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
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| 36 |
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| 37 | # define PTHREAD_GETSPECIFIC_INT
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| 38 | # ifdef DJGPP
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| 39 | # define pthread_addr_t any_t
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| 40 | # define NEED_PTHREAD_INIT
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| 41 | # define PTHREAD_CREATE_JOINABLE (1)
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| 42 | # endif
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| 43 | # ifdef __OPEN_VM
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| 44 | # define pthread_addr_t void *
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| 45 | # endif
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| 46 | # ifdef OEMVS
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| 47 | # define pthread_addr_t void *
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| 48 | # define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
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| 49 | # define pthread_keycreate pthread_key_create
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| 50 | # endif
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| 51 | # ifdef VMS
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| 52 | # define pthread_attr_init(a) pthread_attr_create(a)
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| 53 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
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| 54 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
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| 55 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
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| 56 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
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| 57 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
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| 58 | # endif
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| 59 | # if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
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| 60 | # define pthread_attr_init(a) pthread_attr_create(a)
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| 61 | /* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
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| 62 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
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| 63 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
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| 64 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
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| 65 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
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| 66 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
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| 67 | # endif
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| 68 | # if defined(DJGPP) || defined(__OPEN_VM) || defined(OEMVS)
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| 69 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
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| 70 | # define YIELD pthread_yield(NULL)
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| 71 | # endif
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| 72 | # endif
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| 73 | # if !defined(__hpux) || !defined(__ux_version) || __ux_version > 1020
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| 74 | # define pthread_mutexattr_default NULL
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| 75 | # define pthread_condattr_default NULL
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| 76 | # endif
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| 77 | #endif /* NETWARE */
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| 78 | #endif
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| 79 |
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| 80 | #ifndef PTHREAD_CREATE
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| 81 | /* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
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| 82 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
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| 83 | #endif
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| 84 |
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| 85 | #ifndef PTHREAD_ATTR_SETDETACHSTATE
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| 86 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
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| 87 | #endif
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| 88 |
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| 89 | #ifndef PTHREAD_CREATE_JOINABLE
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| 90 | # ifdef OLD_PTHREAD_CREATE_JOINABLE
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| 91 | # define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
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| 92 | # else
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| 93 | # define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
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| 94 | # endif
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| 95 | #endif
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| 96 |
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| 97 | #ifdef DGUX
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| 98 | # define THREAD_CREATE_NEEDS_STACK (32*1024)
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| 99 | #endif
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| 100 |
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| 101 | #ifdef I_MACH_CTHREADS
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| 102 |
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| 103 | /* cthreads interface */
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| 104 |
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| 105 | /* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
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| 106 |
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| 107 | #define MUTEX_INIT(m) \
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| 108 | STMT_START { \
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| 109 | *m = mutex_alloc(); \
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| 110 | if (*m) { \
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| 111 | mutex_init(*m); \
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| 112 | } else { \
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| 113 | Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
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| 114 | __FILE__, __LINE__); \
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| 115 | } \
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| 116 | } STMT_END
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| 117 |
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| 118 | #define MUTEX_LOCK(m) mutex_lock(*m)
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| 119 | #define MUTEX_UNLOCK(m) mutex_unlock(*m)
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| 120 | #define MUTEX_DESTROY(m) \
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| 121 | STMT_START { \
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| 122 | mutex_free(*m); \
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| 123 | *m = 0; \
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| 124 | } STMT_END
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| 125 |
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| 126 | #define COND_INIT(c) \
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| 127 | STMT_START { \
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| 128 | *c = condition_alloc(); \
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| 129 | if (*c) { \
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| 130 | condition_init(*c); \
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| 131 | } \
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| 132 | else { \
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| 133 | Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
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| 134 | __FILE__, __LINE__); \
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| 135 | } \
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| 136 | } STMT_END
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| 137 |
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| 138 | #define COND_SIGNAL(c) condition_signal(*c)
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| 139 | #define COND_BROADCAST(c) condition_broadcast(*c)
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| 140 | #define COND_WAIT(c, m) condition_wait(*c, *m)
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| 141 | #define COND_DESTROY(c) \
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| 142 | STMT_START { \
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| 143 | condition_free(*c); \
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| 144 | *c = 0; \
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| 145 | } STMT_END
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| 146 |
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| 147 | #define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
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| 148 | #define THREAD_POST_CREATE(thr)
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| 149 |
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| 150 | #define THREAD_RET_TYPE any_t
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| 151 | #define THREAD_RET_CAST(x) ((any_t) x)
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| 152 |
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| 153 | #define DETACH(t) cthread_detach(t->self)
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| 154 | #define JOIN(t, avp) (*(avp) = (AV *)cthread_join(t->self))
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| 155 |
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| 156 | #define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
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| 157 | #define PERL_GET_CONTEXT cthread_data(cthread_self())
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| 158 |
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| 159 | #define INIT_THREADS cthread_init()
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| 160 | #define YIELD cthread_yield()
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| 161 | #define ALLOC_THREAD_KEY NOOP
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| 162 | #define FREE_THREAD_KEY NOOP
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| 163 | #define SET_THREAD_SELF(thr) (thr->self = cthread_self())
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| 164 |
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| 165 | #endif /* I_MACH_CTHREADS */
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| 166 |
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| 167 | #ifndef YIELD
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| 168 | # ifdef SCHED_YIELD
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| 169 | # define YIELD SCHED_YIELD
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| 170 | # else
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| 171 | # ifdef HAS_SCHED_YIELD
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| 172 | # define YIELD sched_yield()
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| 173 | # else
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| 174 | # ifdef HAS_PTHREAD_YIELD
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| 175 | /* pthread_yield(NULL) platforms are expected
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| 176 | * to have #defined YIELD for themselves. */
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| 177 | # define YIELD pthread_yield()
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| 178 | # endif
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| 179 | # endif
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| 180 | # endif
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| 181 | #endif
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| 182 |
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| 183 | #ifdef __hpux
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| 184 | # define MUTEX_INIT_NEEDS_MUTEX_ZEROED
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| 185 | #endif
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| 186 |
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| 187 | #ifndef MUTEX_INIT
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| 188 |
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| 189 | # ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
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| 190 | /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
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| 191 | # define MUTEX_INIT(m) \
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| 192 | STMT_START { \
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| 193 | int _eC_; \
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| 194 | Zero((m), 1, perl_mutex); \
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| 195 | if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
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| 196 | Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
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| 197 | _eC_, __FILE__, __LINE__); \
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| 198 | } STMT_END
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| 199 | # else
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| 200 | # define MUTEX_INIT(m) \
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| 201 | STMT_START { \
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| 202 | int _eC_; \
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| 203 | if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
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| 204 | Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
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| 205 | _eC_, __FILE__, __LINE__); \
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| 206 | } STMT_END
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| 207 | # endif
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| 208 |
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| 209 | # define MUTEX_LOCK(m) \
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| 210 | STMT_START { \
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| 211 | int _eC_; \
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| 212 | if ((_eC_ = pthread_mutex_lock((m)))) \
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| 213 | Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
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| 214 | _eC_, __FILE__, __LINE__); \
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| 215 | } STMT_END
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| 216 |
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| 217 | # define MUTEX_UNLOCK(m) \
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| 218 | STMT_START { \
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| 219 | int _eC_; \
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| 220 | if ((_eC_ = pthread_mutex_unlock((m)))) \
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| 221 | Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
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| 222 | _eC_, __FILE__, __LINE__); \
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| 223 | } STMT_END
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| 224 |
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| 225 | # define MUTEX_DESTROY(m) \
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| 226 | STMT_START { \
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| 227 | int _eC_; \
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| 228 | if ((_eC_ = pthread_mutex_destroy((m)))) \
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| 229 | Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
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| 230 | _eC_, __FILE__, __LINE__); \
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| 231 | } STMT_END
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| 232 | #endif /* MUTEX_INIT */
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| 233 |
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| 234 | #ifndef COND_INIT
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| 235 | # define COND_INIT(c) \
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| 236 | STMT_START { \
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| 237 | int _eC_; \
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| 238 | if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
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| 239 | Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
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| 240 | _eC_, __FILE__, __LINE__); \
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| 241 | } STMT_END
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| 242 |
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| 243 | # define COND_SIGNAL(c) \
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| 244 | STMT_START { \
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| 245 | int _eC_; \
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| 246 | if ((_eC_ = pthread_cond_signal((c)))) \
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| 247 | Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
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| 248 | _eC_, __FILE__, __LINE__); \
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| 249 | } STMT_END
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| 250 |
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| 251 | # define COND_BROADCAST(c) \
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| 252 | STMT_START { \
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| 253 | int _eC_; \
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| 254 | if ((_eC_ = pthread_cond_broadcast((c)))) \
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| 255 | Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
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| 256 | _eC_, __FILE__, __LINE__); \
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| 257 | } STMT_END
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| 258 |
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| 259 | # define COND_WAIT(c, m) \
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| 260 | STMT_START { \
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| 261 | int _eC_; \
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| 262 | if ((_eC_ = pthread_cond_wait((c), (m)))) \
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| 263 | Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
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| 264 | _eC_, __FILE__, __LINE__); \
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| 265 | } STMT_END
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| 266 |
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| 267 | # define COND_DESTROY(c) \
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| 268 | STMT_START { \
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| 269 | int _eC_; \
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| 270 | if ((_eC_ = pthread_cond_destroy((c)))) \
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| 271 | Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
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| 272 | _eC_, __FILE__, __LINE__); \
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| 273 | } STMT_END
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| 274 | #endif /* COND_INIT */
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| 275 |
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| 276 | /* DETACH(t) must only be called while holding t->mutex */
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| 277 | #ifndef DETACH
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| 278 | # define DETACH(t) \
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| 279 | STMT_START { \
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| 280 | int _eC_; \
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| 281 | if ((_eC_ = pthread_detach((t)->self))) { \
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| 282 | MUTEX_UNLOCK(&(t)->mutex); \
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| 283 | Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
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| 284 | _eC_, __FILE__, __LINE__); \
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| 285 | } \
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| 286 | } STMT_END
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| 287 | #endif /* DETACH */
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| 288 |
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| 289 | #ifndef JOIN
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| 290 | # define JOIN(t, avp) \
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| 291 | STMT_START { \
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| 292 | int _eC_; \
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| 293 | if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
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| 294 | Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
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| 295 | _eC_, __FILE__, __LINE__); \
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| 296 | } STMT_END
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| 297 | #endif /* JOIN */
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| 298 |
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| 299 | /* Use an unchecked fetch of thread-specific data instead of a checked one.
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| 300 | * It would fail if the key were bogus, but if the key were bogus then
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| 301 | * Really Bad Things would be happening anyway. --dan */
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| 302 | #if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || \
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| 303 | (defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
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| 304 | # define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
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| 305 | #endif
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| 306 |
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| 307 | #ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
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| 308 | # define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
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| 309 | #else
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| 310 | # define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
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| 311 | #endif
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| 312 |
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| 313 | #ifndef PERL_GET_CONTEXT
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| 314 | # define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
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| 315 | #endif
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| 316 |
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| 317 | #ifndef PERL_SET_CONTEXT
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| 318 | # define PERL_SET_CONTEXT(t) \
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| 319 | STMT_START { \
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| 320 | int _eC_; \
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| 321 | if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
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| 322 | Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
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| 323 | _eC_, __FILE__, __LINE__); \
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| 324 | } STMT_END
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| 325 | #endif /* PERL_SET_CONTEXT */
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| 326 |
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| 327 | #ifndef INIT_THREADS
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| 328 | # ifdef NEED_PTHREAD_INIT
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| 329 | # define INIT_THREADS pthread_init()
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| 330 | # endif
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| 331 | #endif
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| 332 |
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| 333 | #ifndef ALLOC_THREAD_KEY
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| 334 | # define ALLOC_THREAD_KEY \
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| 335 | STMT_START { \
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| 336 | int _eC_; \
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| 337 | if ((_eC_ = pthread_key_create(&PL_thr_key, 0))) { \
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| 338 | write(2, "panic: pthread_key_create failed\n", 33); \
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| 339 | exit(1); \
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| 340 | } \
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| 341 | } STMT_END
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| 342 | #endif
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| 343 |
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| 344 | #ifndef FREE_THREAD_KEY
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| 345 | # define FREE_THREAD_KEY \
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| 346 | STMT_START { \
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| 347 | pthread_key_delete(PL_thr_key); \
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| 348 | } STMT_END
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| 349 | #endif
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| 350 |
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| 351 | #ifndef PTHREAD_ATFORK
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| 352 | # ifdef HAS_PTHREAD_ATFORK
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| 353 | # define PTHREAD_ATFORK(prepare,parent,child) \
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| 354 | pthread_atfork(prepare,parent,child)
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| 355 | # else
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| 356 | # define PTHREAD_ATFORK(prepare,parent,child) \
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| 357 | NOOP
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| 358 | # endif
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| 359 | #endif
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| 360 |
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| 361 | #ifndef THREAD_RET_TYPE
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| 362 | # define THREAD_RET_TYPE void *
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| 363 | # define THREAD_RET_CAST(p) ((void *)(p))
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| 364 | #endif /* THREAD_RET */
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| 365 |
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| 366 | #if defined(USE_5005THREADS)
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| 367 |
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| 368 | /* Accessor for per-thread SVs */
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| 369 | # define THREADSV(i) (thr->threadsvp[i])
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| 370 |
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| 371 | /*
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| 372 | * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we
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| 373 | * try only locking them if there may be more than one thread in existence.
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| 374 | * Systems with very fast mutexes (and/or slow conditionals) may wish to
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| 375 | * remove the "if (threadnum) ..." test.
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| 376 | * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions!
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| 377 | */
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| 378 | # define LOCK_SV_MUTEX MUTEX_LOCK(&PL_sv_mutex)
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| 379 | # define UNLOCK_SV_MUTEX MUTEX_UNLOCK(&PL_sv_mutex)
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| 380 | # define LOCK_STRTAB_MUTEX MUTEX_LOCK(&PL_strtab_mutex)
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| 381 | # define UNLOCK_STRTAB_MUTEX MUTEX_UNLOCK(&PL_strtab_mutex)
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| 382 | # define LOCK_CRED_MUTEX MUTEX_LOCK(&PL_cred_mutex)
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| 383 | # define UNLOCK_CRED_MUTEX MUTEX_UNLOCK(&PL_cred_mutex)
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| 384 | # define LOCK_FDPID_MUTEX MUTEX_LOCK(&PL_fdpid_mutex)
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| 385 | # define UNLOCK_FDPID_MUTEX MUTEX_UNLOCK(&PL_fdpid_mutex)
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| 386 | # define LOCK_SV_LOCK_MUTEX MUTEX_LOCK(&PL_sv_lock_mutex)
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| 387 | # define UNLOCK_SV_LOCK_MUTEX MUTEX_UNLOCK(&PL_sv_lock_mutex)
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| 388 |
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| 389 | /* Values and macros for thr->flags */
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| 390 | #define THRf_STATE_MASK 7
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| 391 | #define THRf_R_JOINABLE 0
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| 392 | #define THRf_R_JOINED 1
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| 393 | #define THRf_R_DETACHED 2
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| 394 | #define THRf_ZOMBIE 3
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| 395 | #define THRf_DEAD 4
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| 396 |
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| 397 | #define THRf_DID_DIE 8
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| 398 |
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| 399 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */
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| 400 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK)
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| 401 | #define ThrSETSTATE(t, s) STMT_START { \
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| 402 | (t)->flags &= ~THRf_STATE_MASK; \
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| 403 | (t)->flags |= (s); \
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| 404 | DEBUG_S(PerlIO_printf(Perl_debug_log, \
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| 405 | "thread %p set to state %d\n", (t), (s))); \
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| 406 | } STMT_END
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| 407 |
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| 408 | typedef struct condpair {
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| 409 | perl_mutex mutex; /* Protects all other fields */
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| 410 | perl_cond owner_cond; /* For when owner changes at all */
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| 411 | perl_cond cond; /* For cond_signal and cond_broadcast */
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| 412 | Thread owner; /* Currently owning thread */
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| 413 | } condpair_t;
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| 414 |
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| 415 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex)
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| 416 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond)
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| 417 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond)
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| 418 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner
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| 419 |
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| 420 | #endif /* USE_5005THREADS */
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| 421 |
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| 422 | # define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
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| 423 | # define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
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| 424 |
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| 425 | #endif /* USE_5005THREADS || USE_ITHREADS */
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| 426 |
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| 427 | #ifndef MUTEX_LOCK
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| 428 | # define MUTEX_LOCK(m)
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| 429 | #endif
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| 430 |
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| 431 | #ifndef MUTEX_UNLOCK
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| 432 | # define MUTEX_UNLOCK(m)
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| 433 | #endif
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| 434 |
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| 435 | #ifndef MUTEX_INIT
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| 436 | # define MUTEX_INIT(m)
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| 437 | #endif
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| 438 |
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| 439 | #ifndef MUTEX_DESTROY
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| 440 | # define MUTEX_DESTROY(m)
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| 441 | #endif
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| 442 |
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| 443 | #ifndef COND_INIT
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| 444 | # define COND_INIT(c)
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| 445 | #endif
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| 446 |
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| 447 | #ifndef COND_SIGNAL
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| 448 | # define COND_SIGNAL(c)
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| 449 | #endif
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| 450 |
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| 451 | #ifndef COND_BROADCAST
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| 452 | # define COND_BROADCAST(c)
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| 453 | #endif
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| 454 |
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| 455 | #ifndef COND_WAIT
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| 456 | # define COND_WAIT(c, m)
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| 457 | #endif
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| 458 |
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| 459 | #ifndef COND_DESTROY
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| 460 | # define COND_DESTROY(c)
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| 461 | #endif
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| 462 |
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| 463 | #ifndef LOCK_SV_MUTEX
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| 464 | # define LOCK_SV_MUTEX
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| 465 | #endif
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| 466 |
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| 467 | #ifndef UNLOCK_SV_MUTEX
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| 468 | # define UNLOCK_SV_MUTEX
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| 469 | #endif
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| 470 |
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| 471 | #ifndef LOCK_STRTAB_MUTEX
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| 472 | # define LOCK_STRTAB_MUTEX
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| 473 | #endif
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| 474 |
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| 475 | #ifndef UNLOCK_STRTAB_MUTEX
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| 476 | # define UNLOCK_STRTAB_MUTEX
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| 477 | #endif
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| 478 |
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| 479 | #ifndef LOCK_CRED_MUTEX
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| 480 | # define LOCK_CRED_MUTEX
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| 481 | #endif
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| 482 |
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| 483 | #ifndef UNLOCK_CRED_MUTEX
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| 484 | # define UNLOCK_CRED_MUTEX
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| 485 | #endif
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| 486 |
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| 487 | #ifndef LOCK_FDPID_MUTEX
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| 488 | # define LOCK_FDPID_MUTEX
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| 489 | #endif
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| 490 |
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| 491 | #ifndef UNLOCK_FDPID_MUTEX
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| 492 | # define UNLOCK_FDPID_MUTEX
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| 493 | #endif
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| 494 |
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| 495 | #ifndef LOCK_SV_LOCK_MUTEX
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| 496 | # define LOCK_SV_LOCK_MUTEX
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| 497 | #endif
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| 498 |
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| 499 | #ifndef UNLOCK_SV_LOCK_MUTEX
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| 500 | # define UNLOCK_SV_LOCK_MUTEX
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| 501 | #endif
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| 502 |
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| 503 | #ifndef LOCK_DOLLARZERO_MUTEX
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| 504 | # define LOCK_DOLLARZERO_MUTEX
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| 505 | #endif
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| 506 |
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| 507 | #ifndef UNLOCK_DOLLARZERO_MUTEX
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| 508 | # define UNLOCK_DOLLARZERO_MUTEX
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| 509 | #endif
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| 510 |
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| 511 | /* THR, SET_THR, and dTHR are there for compatibility with old versions */
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| 512 | #ifndef THR
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| 513 | # define THR PERL_GET_THX
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| 514 | #endif
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| 515 |
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| 516 | #ifndef SET_THR
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| 517 | # define SET_THR(t) PERL_SET_THX(t)
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| 518 | #endif
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| 519 |
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| 520 | #ifndef dTHR
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| 521 | # define dTHR dNOOP
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| 522 | #endif
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| 523 |
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| 524 | #ifndef INIT_THREADS
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| 525 | # define INIT_THREADS NOOP
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| 526 | #endif
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