annotate src/os/solaris/vm/os_solaris.hpp @ 196:d1605aabd0a1

6719955: Update copyright year Summary: Update copyright year for files that have been modified in 2008 Reviewed-by: ohair, tbell
author xdono
date Wed, 02 Jul 2008 12:55:16 -0700
parents e3729351c946
children 85f1b9537f70
rev   line source
duke@0 1 /*
xdono@196 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
duke@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@0 4 *
duke@0 5 * This code is free software; you can redistribute it and/or modify it
duke@0 6 * under the terms of the GNU General Public License version 2 only, as
duke@0 7 * published by the Free Software Foundation.
duke@0 8 *
duke@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@0 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@0 13 * accompanied this code).
duke@0 14 *
duke@0 15 * You should have received a copy of the GNU General Public License version
duke@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@0 18 *
duke@0 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@0 20 * CA 95054 USA or visit www.sun.com if you need additional information or
duke@0 21 * have any questions.
duke@0 22 *
duke@0 23 */
duke@0 24
duke@0 25 // Solaris_OS defines the interface to Solaris operating systems
duke@0 26
duke@0 27 class Solaris {
duke@0 28 friend class os;
duke@0 29
duke@0 30 private:
duke@0 31
duke@0 32 // Support for "new" libthread APIs for getting & setting thread context (2.8)
duke@0 33 #define TRS_VALID 0
duke@0 34 #define TRS_NONVOLATILE 1
duke@0 35 #define TRS_LWPID 2
duke@0 36 #define TRS_INVALID 3
duke@0 37
duke@0 38 // _T2_libthread is true if we believe we are running with the newer
duke@0 39 // SunSoft lib/lwp/libthread: default Solaris 9, available Solaris 8
duke@0 40 // which is a lightweight libthread that also supports all T1
duke@0 41 static bool _T2_libthread;
duke@0 42 // These refer to new libthread interface functions
duke@0 43 // They get intialized if we dynamically detect new libthread
duke@0 44 static int_fnP_thread_t_iP_uP_stack_tP_gregset_t _thr_getstate;
duke@0 45 static int_fnP_thread_t_i_gregset_t _thr_setstate;
duke@0 46 static int_fnP_thread_t_i _thr_setmutator;
duke@0 47 static int_fnP_thread_t _thr_suspend_mutator;
duke@0 48 static int_fnP_thread_t _thr_continue_mutator;
duke@0 49 // libthread_init sets the above, if the new functionality is detected
duke@0 50
duke@0 51 // initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization
duke@0 52 static int_fnP_mutex_tP _mutex_lock;
duke@0 53 static int_fnP_mutex_tP _mutex_trylock;
duke@0 54 static int_fnP_mutex_tP _mutex_unlock;
duke@0 55 static int_fnP_mutex_tP_i_vP _mutex_init;
duke@0 56 static int_fnP_mutex_tP _mutex_destroy;
duke@0 57 static int _mutex_scope;
duke@0 58
duke@0 59 static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait;
duke@0 60 static int_fnP_cond_tP_mutex_tP _cond_wait;
duke@0 61 static int_fnP_cond_tP _cond_signal;
duke@0 62 static int_fnP_cond_tP _cond_broadcast;
duke@0 63 static int_fnP_cond_tP_i_vP _cond_init;
duke@0 64 static int_fnP_cond_tP _cond_destroy;
duke@0 65 static int _cond_scope;
duke@0 66
duke@0 67 typedef uintptr_t lgrp_cookie_t;
duke@0 68 typedef id_t lgrp_id_t;
iveresov@144 69 typedef int lgrp_rsrc_t;
duke@0 70 typedef enum lgrp_view {
duke@0 71 LGRP_VIEW_CALLER, /* what's available to the caller */
duke@0 72 LGRP_VIEW_OS /* what's available to operating system */
duke@0 73 } lgrp_view_t;
duke@0 74
duke@0 75 typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
duke@0 76 typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
duke@0 77 typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
duke@0 78 typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie);
duke@0 79 typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent,
duke@0 80 lgrp_id_t *lgrp_array, uint_t lgrp_array_size);
iveresov@144 81 typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp,
iveresov@144 82 lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
iveresov@144 83 lgrp_rsrc_t type);
duke@0 84 typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie);
duke@0 85 typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie);
duke@0 86 typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count,
duke@0 87 const uint_t info_req[], int info_count,
duke@0 88 uint64_t outdata[], uint_t validity[]);
duke@0 89
duke@0 90 static lgrp_home_func_t _lgrp_home;
duke@0 91 static lgrp_init_func_t _lgrp_init;
duke@0 92 static lgrp_fini_func_t _lgrp_fini;
duke@0 93 static lgrp_root_func_t _lgrp_root;
duke@0 94 static lgrp_children_func_t _lgrp_children;
iveresov@144 95 static lgrp_resources_func_t _lgrp_resources;
duke@0 96 static lgrp_nlgrps_func_t _lgrp_nlgrps;
duke@0 97 static lgrp_cookie_stale_func_t _lgrp_cookie_stale;
duke@0 98 static lgrp_cookie_t _lgrp_cookie;
duke@0 99
duke@0 100 static meminfo_func_t _meminfo;
duke@0 101
duke@0 102 // Large Page Support--mpss.
duke@0 103 static bool set_mpss_range(caddr_t start, size_t bytes, size_t align);
duke@0 104
duke@0 105 static void init_thread_fpu_state(void);
duke@0 106
duke@0 107 static void try_enable_extended_io();
duke@0 108
duke@0 109 // For signal-chaining
duke@0 110 static unsigned long sigs; // mask of signals that have
duke@0 111 // preinstalled signal handlers
duke@0 112 static struct sigaction *(*get_signal_action)(int);
duke@0 113 static struct sigaction *get_preinstalled_handler(int);
duke@0 114 static int (*get_libjsig_version)();
duke@0 115 static void save_preinstalled_handler(int, struct sigaction&);
duke@0 116 static void check_signal_handler(int sig);
duke@0 117 // For overridable signals
duke@0 118 static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL
duke@0 119 static int _SIGasync; // user-overridable ASYNC_SIGNAL
duke@0 120 static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; }
duke@0 121 static void set_SIGasync(int newsig) { _SIGasync = newsig; }
duke@0 122
duke@0 123
duke@0 124 public:
duke@0 125 // Large Page Support--ISM.
duke@0 126 static bool largepage_range(char* addr, size_t size);
duke@0 127
duke@0 128 static int SIGinterrupt() { return _SIGinterrupt; }
duke@0 129 static int SIGasync() { return _SIGasync; }
duke@0 130 static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo
duke@0 131
duke@0 132 static bool valid_stack_address(Thread* thread, address sp);
duke@0 133 static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect);
duke@0 134 static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread,
duke@0 135 ucontext_t* uc);
duke@0 136
duke@0 137 static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc);
duke@0 138 static intptr_t* ucontext_get_sp(ucontext_t* uc);
duke@0 139 // ucontext_get_fp() is only used by Solaris X86 (see note below)
duke@0 140 static intptr_t* ucontext_get_fp(ucontext_t* uc);
duke@0 141
duke@0 142 // For Analyzer Forte AsyncGetCallTrace profiling support:
duke@0 143 // Parameter ret_fp is only used by Solaris X86.
duke@0 144 //
duke@0 145 // We should have different declarations of this interface in
duke@0 146 // os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file
duke@0 147 // provides extensions to the os class and not the Solaris class.
duke@0 148 static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc,
duke@0 149 intptr_t** ret_sp, intptr_t** ret_fp);
duke@0 150
duke@0 151 static void hotspot_sigmask(Thread* thread);
duke@0 152
duke@0 153 protected:
duke@0 154 // Solaris-specific interface goes here
duke@0 155 static julong available_memory();
duke@0 156 static julong physical_memory() { return _physical_memory; }
duke@0 157 static julong _physical_memory;
duke@0 158 static void initialize_system_info();
duke@0 159 static int _dev_zero_fd;
duke@0 160 static int get_dev_zero_fd() { return _dev_zero_fd; }
duke@0 161 static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
duke@0 162 static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
sbohne@60 163 static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed);
duke@0 164 static bool mpss_sanity_check(bool warn, size_t * page_size);
duke@0 165 static bool ism_sanity_check (bool warn, size_t * page_size);
duke@0 166
duke@0 167 // Workaround for 4352906. thr_stksegment sometimes returns
duke@0 168 // a bad value for the primordial thread's stack base when
duke@0 169 // it is called more than one time.
duke@0 170 // Workaround is to cache the initial value to avoid further
duke@0 171 // calls to thr_stksegment.
duke@0 172 // It appears that someone (Hotspot?) is trashing the user's
duke@0 173 // proc_t structure (note that this is a system struct).
duke@0 174 static address _main_stack_base;
duke@0 175
duke@0 176 public:
duke@0 177 static void libthread_init();
duke@0 178 static void synchronization_init();
duke@0 179 static void liblgrp_init();
duke@0 180 // Load miscellaneous symbols.
duke@0 181 static void misc_sym_init();
duke@0 182 // This boolean allows users to forward their own non-matching signals
duke@0 183 // to JVM_handle_solaris_signal, harmlessly.
duke@0 184 static bool signal_handlers_are_installed;
duke@0 185
duke@0 186 static void signal_sets_init();
duke@0 187 static void install_signal_handlers();
duke@0 188 static void set_signal_handler(int sig, bool set_installed, bool oktochain);
duke@0 189 static void init_signal_mem();
duke@0 190 static bool is_sig_ignored(int sig);
duke@0 191 static void set_our_sigflags(int, int);
duke@0 192 static int get_our_sigflags(int);
duke@0 193
duke@0 194 // For signal-chaining
duke@0 195 static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
duke@0 196 // signal(), sigset() is loaded
duke@0 197 static struct sigaction *get_chained_signal_action(int sig);
duke@0 198 static bool chained_handler(int sig, siginfo_t *siginfo, void *context);
duke@0 199
duke@0 200 // The following allow us to link against both the old and new libthread (2.8)
duke@0 201 // and exploit the new libthread functionality if available.
duke@0 202
duke@0 203 static bool T2_libthread() { return _T2_libthread; }
duke@0 204 static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; }
duke@0 205
duke@0 206 static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs)
duke@0 207 { return _thr_getstate(tid, flag, lwp, ss, rs); }
duke@0 208 static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func)
duke@0 209 { _thr_getstate = func; }
duke@0 210
duke@0 211 static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); }
duke@0 212 static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; }
duke@0 213
duke@0 214 static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); }
duke@0 215 static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; }
duke@0 216
duke@0 217 static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); }
duke@0 218 static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; }
duke@0 219
duke@0 220 static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); }
duke@0 221 static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; }
duke@0 222
duke@0 223 // Allows us to switch between lwp and thread -based synchronization
duke@0 224 static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); }
duke@0 225 static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); }
duke@0 226 static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); }
duke@0 227 static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); }
duke@0 228 static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); }
duke@0 229 static int mutex_scope() { return _mutex_scope; }
duke@0 230
duke@0 231 static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; }
duke@0 232 static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; }
duke@0 233 static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; }
duke@0 234 static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; }
duke@0 235 static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; }
duke@0 236 static void set_mutex_scope(int scope) { _mutex_scope = scope; }
duke@0 237
duke@0 238 static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst)
duke@0 239 { return _cond_timedwait(cv, mx, abst); }
duke@0 240 static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); }
duke@0 241 static int cond_signal(cond_t *cv) { return _cond_signal(cv); }
duke@0 242 static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); }
duke@0 243 static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); }
duke@0 244 static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); }
duke@0 245 static int cond_scope() { return _cond_scope; }
duke@0 246
duke@0 247 static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func)
duke@0 248 { _cond_timedwait = func; }
duke@0 249 static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; }
duke@0 250 static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; }
duke@0 251 static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; }
duke@0 252 static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; }
duke@0 253 static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; }
duke@0 254 static void set_cond_scope(int scope) { _cond_scope = scope; }
duke@0 255
duke@0 256 static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; }
duke@0 257 static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; }
duke@0 258 static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; }
duke@0 259 static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; }
iveresov@144 260 static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; }
iveresov@144 261 static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; }
iveresov@144 262 static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; }
duke@0 263 static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; }
duke@0 264 static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; }
duke@0 265
duke@0 266 static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; }
duke@0 267 static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; }
duke@0 268 static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; }
duke@0 269 static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; };
duke@0 270 static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,
duke@0 271 lgrp_id_t *lgrp_array, uint_t lgrp_array_size) {
duke@0 272 return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1;
duke@0 273 }
iveresov@144 274 static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp,
iveresov@144 275 lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
iveresov@144 276 lgrp_rsrc_t type) {
iveresov@144 277 return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1;
iveresov@144 278 }
iveresov@144 279
duke@0 280 static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; }
duke@0 281 static int lgrp_cookie_stale(lgrp_cookie_t cookie) {
duke@0 282 return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1;
duke@0 283 }
duke@0 284 static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
duke@0 285
duke@0 286 static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
duke@0 287 static int meminfo (const uint64_t inaddr[], int addr_count,
duke@0 288 const uint_t info_req[], int info_count,
duke@0 289 uint64_t outdata[], uint_t validity[]) {
duke@0 290 return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count,
duke@0 291 outdata, validity) : -1;
duke@0 292 }
duke@0 293
duke@0 294 enum {
duke@0 295 clear_interrupted = true
duke@0 296 };
duke@0 297 static void setup_interruptible(JavaThread* thread);
duke@0 298 static void setup_interruptible_already_blocked(JavaThread* thread);
duke@0 299 static JavaThread* setup_interruptible();
duke@0 300 static void cleanup_interruptible(JavaThread* thread);
duke@0 301
duke@0 302 // perf counter incrementers used by _INTERRUPTIBLE
duke@0 303
duke@0 304 static void bump_interrupted_before_count();
duke@0 305 static void bump_interrupted_during_count();
duke@0 306
duke@0 307 #ifdef ASSERT
duke@0 308 static JavaThread* setup_interruptible_native();
duke@0 309 static void cleanup_interruptible_native(JavaThread* thread);
duke@0 310 #endif
duke@0 311
duke@0 312 static sigset_t* unblocked_signals();
duke@0 313 static sigset_t* vm_signals();
duke@0 314 static sigset_t* allowdebug_blocked_signals();
duke@0 315
duke@0 316 // %%% Following should be promoted to os.hpp:
duke@0 317 // Trace number of created threads
duke@0 318 static jint _os_thread_limit;
duke@0 319 static volatile jint _os_thread_count;
duke@0 320
duke@0 321 // Minimum stack size a thread can be created with (allowing
duke@0 322 // the VM to completely create the thread and enter user code)
duke@0 323
duke@0 324 static size_t min_stack_allowed;
duke@0 325
duke@0 326 // Stack overflow handling
duke@0 327
duke@0 328 static int max_register_window_saves_before_flushing();
duke@0 329
duke@0 330 // Stack repair handling
duke@0 331
duke@0 332 // none present
duke@0 333
duke@0 334 };
duke@0 335
duke@0 336 class PlatformEvent : public CHeapObj {
duke@0 337 private:
duke@0 338 double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line
duke@0 339 volatile int _Event ;
duke@0 340 int _nParked ;
duke@0 341 int _pipev [2] ;
duke@0 342 mutex_t _mutex [1] ;
duke@0 343 cond_t _cond [1] ;
duke@0 344 double PostPad [2] ;
duke@0 345
duke@0 346 protected:
duke@0 347 // Defining a protected ctor effectively gives us an abstract base class.
duke@0 348 // That is, a PlatformEvent can never be instantiated "naked" but only
duke@0 349 // as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent).
duke@0 350 // TODO-FIXME: make dtor private
duke@0 351 ~PlatformEvent() { guarantee (0, "invariant") ; }
duke@0 352 PlatformEvent() {
duke@0 353 int status;
duke@0 354 status = os::Solaris::cond_init(_cond);
duke@0 355 assert_status(status == 0, status, "cond_init");
duke@0 356 status = os::Solaris::mutex_init(_mutex);
duke@0 357 assert_status(status == 0, status, "mutex_init");
duke@0 358 _Event = 0 ;
duke@0 359 _nParked = 0 ;
duke@0 360 _pipev[0] = _pipev[1] = -1 ;
duke@0 361 }
duke@0 362
duke@0 363 public:
duke@0 364 // Exercise caution using reset() and fired() -- they may require MEMBARs
duke@0 365 void reset() { _Event = 0 ; }
duke@0 366 int fired() { return _Event; }
duke@0 367 void park () ;
duke@0 368 int park (jlong millis) ;
duke@0 369 int TryPark () ;
duke@0 370 void unpark () ;
duke@0 371 } ;
duke@0 372
duke@0 373 class PlatformParker : public CHeapObj {
duke@0 374 protected:
duke@0 375 mutex_t _mutex [1] ;
duke@0 376 cond_t _cond [1] ;
duke@0 377
duke@0 378 public: // TODO-FIXME: make dtor private
duke@0 379 ~PlatformParker() { guarantee (0, "invariant") ; }
duke@0 380
duke@0 381 public:
duke@0 382 PlatformParker() {
duke@0 383 int status;
duke@0 384 status = os::Solaris::cond_init(_cond);
duke@0 385 assert_status(status == 0, status, "cond_init");
duke@0 386 status = os::Solaris::mutex_init(_mutex);
duke@0 387 assert_status(status == 0, status, "mutex_init");
duke@0 388 }
duke@0 389 } ;