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src/os/solaris/vm/os_solaris.hpp@b9a9ed0f8eeb (annotated)

src/os/solaris/vm/os_solaris.hpp

Tue, 09 Oct 2012 10:09:34 -0700

author

mikael

date

Tue, 09 Oct 2012 10:09:34 -0700

changeset 4153

b9a9ed0f8eeb

parent 3900

d2a62e0f25eb

child 5237

f2110083203d

permissions

-rw-r--r--

7197424: update copyright year to match last edit in jdk8 hotspot repository
Summary: Update copyright year to 2012 for relevant files
Reviewed-by: dholmes, coleenp

duke@435	1	/*
mikael@4153	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef OS_SOLARIS_VM_OS_SOLARIS_HPP
stefank@2314	26	#define OS_SOLARIS_VM_OS_SOLARIS_HPP
stefank@2314	27
duke@435	28	// Solaris_OS defines the interface to Solaris operating systems
duke@435	29
duke@435	30	class Solaris {
duke@435	31	friend class os;
duke@435	32
duke@435	33	private:
duke@435	34
duke@435	35	// Support for "new" libthread APIs for getting & setting thread context (2.8)
duke@435	36	#define TRS_VALID 0
duke@435	37	#define TRS_NONVOLATILE 1
duke@435	38	#define TRS_LWPID 2
duke@435	39	#define TRS_INVALID 3
duke@435	40
duke@435	41	// _T2_libthread is true if we believe we are running with the newer
duke@435	42	// SunSoft lib/lwp/libthread: default Solaris 9, available Solaris 8
duke@435	43	// which is a lightweight libthread that also supports all T1
duke@435	44	static bool _T2_libthread;
duke@435	45	// These refer to new libthread interface functions
duke@435	46	// They get intialized if we dynamically detect new libthread
duke@435	47	static int_fnP_thread_t_iP_uP_stack_tP_gregset_t _thr_getstate;
duke@435	48	static int_fnP_thread_t_i_gregset_t _thr_setstate;
duke@435	49	static int_fnP_thread_t_i _thr_setmutator;
duke@435	50	static int_fnP_thread_t _thr_suspend_mutator;
duke@435	51	static int_fnP_thread_t _thr_continue_mutator;
duke@435	52	// libthread_init sets the above, if the new functionality is detected
duke@435	53
duke@435	54	// initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization
duke@435	55	static int_fnP_mutex_tP _mutex_lock;
duke@435	56	static int_fnP_mutex_tP _mutex_trylock;
duke@435	57	static int_fnP_mutex_tP _mutex_unlock;
duke@435	58	static int_fnP_mutex_tP_i_vP _mutex_init;
duke@435	59	static int_fnP_mutex_tP _mutex_destroy;
duke@435	60	static int _mutex_scope;
duke@435	61
duke@435	62	static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait;
duke@435	63	static int_fnP_cond_tP_mutex_tP _cond_wait;
duke@435	64	static int_fnP_cond_tP _cond_signal;
duke@435	65	static int_fnP_cond_tP _cond_broadcast;
duke@435	66	static int_fnP_cond_tP_i_vP _cond_init;
duke@435	67	static int_fnP_cond_tP _cond_destroy;
duke@435	68	static int _cond_scope;
duke@435	69
duke@435	70	typedef uintptr_t lgrp_cookie_t;
duke@435	71	typedef id_t lgrp_id_t;
iveresov@579	72	typedef int lgrp_rsrc_t;
duke@435	73	typedef enum lgrp_view {
duke@435	74	LGRP_VIEW_CALLER, /* what's available to the caller */
duke@435	75	LGRP_VIEW_OS /* what's available to operating system */
duke@435	76	} lgrp_view_t;
duke@435	77
twisti@1076	78	typedef uint_t (*getisax_func_t)(uint32_t* array, uint_t n);
twisti@1076	79
duke@435	80	typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
duke@435	81	typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
duke@435	82	typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
duke@435	83	typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie);
duke@435	84	typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent,
duke@435	85	lgrp_id_t *lgrp_array, uint_t lgrp_array_size);
iveresov@579	86	typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp,
iveresov@579	87	lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
iveresov@579	88	lgrp_rsrc_t type);
duke@435	89	typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie);
duke@435	90	typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie);
duke@435	91	typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count,
duke@435	92	const uint_t info_req[], int info_count,
duke@435	93	uint64_t outdata[], uint_t validity[]);
duke@435	94
twisti@1076	95	static getisax_func_t _getisax;
twisti@1076	96
duke@435	97	static lgrp_home_func_t _lgrp_home;
duke@435	98	static lgrp_init_func_t _lgrp_init;
duke@435	99	static lgrp_fini_func_t _lgrp_fini;
duke@435	100	static lgrp_root_func_t _lgrp_root;
duke@435	101	static lgrp_children_func_t _lgrp_children;
iveresov@579	102	static lgrp_resources_func_t _lgrp_resources;
duke@435	103	static lgrp_nlgrps_func_t _lgrp_nlgrps;
duke@435	104	static lgrp_cookie_stale_func_t _lgrp_cookie_stale;
duke@435	105	static lgrp_cookie_t _lgrp_cookie;
duke@435	106
duke@435	107	static meminfo_func_t _meminfo;
duke@435	108
duke@435	109	// Large Page Support--mpss.
duke@435	110	static bool set_mpss_range(caddr_t start, size_t bytes, size_t align);
duke@435	111
duke@435	112	static void init_thread_fpu_state(void);
duke@435	113
duke@435	114	static void try_enable_extended_io();
duke@435	115
duke@435	116	// For signal-chaining
duke@435	117	static unsigned long sigs; // mask of signals that have
duke@435	118	// preinstalled signal handlers
duke@435	119	static struct sigaction *(*get_signal_action)(int);
duke@435	120	static struct sigaction *get_preinstalled_handler(int);
duke@435	121	static int (*get_libjsig_version)();
duke@435	122	static void save_preinstalled_handler(int, struct sigaction&);
duke@435	123	static void check_signal_handler(int sig);
duke@435	124	// For overridable signals
duke@435	125	static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL
duke@435	126	static int _SIGasync; // user-overridable ASYNC_SIGNAL
duke@435	127	static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; }
duke@435	128	static void set_SIGasync(int newsig) { _SIGasync = newsig; }
duke@435	129
duke@435	130
duke@435	131	public:
duke@435	132	// Large Page Support--ISM.
duke@435	133	static bool largepage_range(char* addr, size_t size);
duke@435	134
duke@435	135	static int SIGinterrupt() { return _SIGinterrupt; }
duke@435	136	static int SIGasync() { return _SIGasync; }
duke@435	137	static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo
duke@435	138
duke@435	139	static bool valid_stack_address(Thread* thread, address sp);
duke@435	140	static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect);
duke@435	141	static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread,
duke@435	142	ucontext_t* uc);
duke@435	143
duke@435	144	static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc);
duke@435	145	static intptr_t* ucontext_get_sp(ucontext_t* uc);
duke@435	146	// ucontext_get_fp() is only used by Solaris X86 (see note below)
duke@435	147	static intptr_t* ucontext_get_fp(ucontext_t* uc);
duke@435	148
duke@435	149	// For Analyzer Forte AsyncGetCallTrace profiling support:
duke@435	150	// Parameter ret_fp is only used by Solaris X86.
duke@435	151	//
duke@435	152	// We should have different declarations of this interface in
duke@435	153	// os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file
duke@435	154	// provides extensions to the os class and not the Solaris class.
duke@435	155	static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc,
duke@435	156	intptr_t** ret_sp, intptr_t** ret_fp);
duke@435	157
duke@435	158	static void hotspot_sigmask(Thread* thread);
duke@435	159
duke@435	160	protected:
duke@435	161	// Solaris-specific interface goes here
duke@435	162	static julong available_memory();
duke@435	163	static julong physical_memory() { return _physical_memory; }
duke@435	164	static julong _physical_memory;
duke@435	165	static void initialize_system_info();
duke@435	166	static int _dev_zero_fd;
duke@435	167	static int get_dev_zero_fd() { return _dev_zero_fd; }
duke@435	168	static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
duke@435	169	static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
sbohne@495	170	static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed);
duke@435	171	static bool mpss_sanity_check(bool warn, size_t * page_size);
duke@435	172	static bool ism_sanity_check (bool warn, size_t * page_size);
duke@435	173
duke@435	174	// Workaround for 4352906. thr_stksegment sometimes returns
duke@435	175	// a bad value for the primordial thread's stack base when
duke@435	176	// it is called more than one time.
duke@435	177	// Workaround is to cache the initial value to avoid further
duke@435	178	// calls to thr_stksegment.
duke@435	179	// It appears that someone (Hotspot?) is trashing the user's
duke@435	180	// proc_t structure (note that this is a system struct).
duke@435	181	static address _main_stack_base;
duke@435	182
nloodin@3783	183	static void print_distro_info(outputStream* st);
nloodin@3783	184	static void print_libversion_info(outputStream* st);
nloodin@3783	185
duke@435	186	public:
duke@435	187	static void libthread_init();
duke@435	188	static void synchronization_init();
iveresov@897	189	static bool liblgrp_init();
duke@435	190	// Load miscellaneous symbols.
duke@435	191	static void misc_sym_init();
duke@435	192	// This boolean allows users to forward their own non-matching signals
duke@435	193	// to JVM_handle_solaris_signal, harmlessly.
duke@435	194	static bool signal_handlers_are_installed;
duke@435	195
duke@435	196	static void signal_sets_init();
duke@435	197	static void install_signal_handlers();
duke@435	198	static void set_signal_handler(int sig, bool set_installed, bool oktochain);
duke@435	199	static void init_signal_mem();
duke@435	200	static bool is_sig_ignored(int sig);
duke@435	201	static void set_our_sigflags(int, int);
duke@435	202	static int get_our_sigflags(int);
duke@435	203
duke@435	204	// For signal-chaining
duke@435	205	static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
duke@435	206	// signal(), sigset() is loaded
duke@435	207	static struct sigaction *get_chained_signal_action(int sig);
duke@435	208	static bool chained_handler(int sig, siginfo_t *siginfo, void *context);
duke@435	209
duke@435	210	// The following allow us to link against both the old and new libthread (2.8)
duke@435	211	// and exploit the new libthread functionality if available.
duke@435	212
duke@435	213	static bool T2_libthread() { return _T2_libthread; }
duke@435	214	static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; }
duke@435	215
duke@435	216	static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs)
duke@435	217	{ return _thr_getstate(tid, flag, lwp, ss, rs); }
duke@435	218	static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func)
duke@435	219	{ _thr_getstate = func; }
duke@435	220
duke@435	221	static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); }
duke@435	222	static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; }
duke@435	223
duke@435	224	static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); }
duke@435	225	static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; }
duke@435	226
duke@435	227	static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); }
duke@435	228	static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; }
duke@435	229
duke@435	230	static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); }
duke@435	231	static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; }
duke@435	232
duke@435	233	// Allows us to switch between lwp and thread -based synchronization
duke@435	234	static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); }
duke@435	235	static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); }
duke@435	236	static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); }
duke@435	237	static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); }
duke@435	238	static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); }
duke@435	239	static int mutex_scope() { return _mutex_scope; }
duke@435	240
duke@435	241	static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; }
duke@435	242	static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; }
duke@435	243	static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; }
duke@435	244	static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; }
duke@435	245	static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; }
duke@435	246	static void set_mutex_scope(int scope) { _mutex_scope = scope; }
duke@435	247
duke@435	248	static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst)
duke@435	249	{ return _cond_timedwait(cv, mx, abst); }
duke@435	250	static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); }
duke@435	251	static int cond_signal(cond_t *cv) { return _cond_signal(cv); }
duke@435	252	static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); }
duke@435	253	static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); }
duke@435	254	static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); }
duke@435	255	static int cond_scope() { return _cond_scope; }
duke@435	256
duke@435	257	static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func)
duke@435	258	{ _cond_timedwait = func; }
duke@435	259	static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; }
duke@435	260	static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; }
duke@435	261	static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; }
duke@435	262	static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; }
duke@435	263	static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; }
duke@435	264	static void set_cond_scope(int scope) { _cond_scope = scope; }
duke@435	265
duke@435	266	static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; }
duke@435	267	static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; }
duke@435	268	static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; }
duke@435	269	static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; }
iveresov@579	270	static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; }
iveresov@579	271	static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; }
iveresov@579	272	static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; }
duke@435	273	static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; }
duke@435	274	static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; }
duke@435	275
duke@435	276	static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; }
duke@435	277	static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; }
duke@435	278	static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; }
duke@435	279	static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; };
duke@435	280	static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,
duke@435	281	lgrp_id_t *lgrp_array, uint_t lgrp_array_size) {
duke@435	282	return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1;
duke@435	283	}
iveresov@579	284	static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp,
iveresov@579	285	lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
iveresov@579	286	lgrp_rsrc_t type) {
iveresov@579	287	return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1;
iveresov@579	288	}
iveresov@579	289
duke@435	290	static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; }
duke@435	291	static int lgrp_cookie_stale(lgrp_cookie_t cookie) {
duke@435	292	return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1;
duke@435	293	}
duke@435	294	static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
duke@435	295
twisti@1076	296	static bool supports_getisax() { return _getisax != NULL; }
twisti@1076	297	static uint_t getisax(uint32_t* array, uint_t n);
twisti@1076	298
duke@435	299	static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
duke@435	300	static int meminfo (const uint64_t inaddr[], int addr_count,
duke@435	301	const uint_t info_req[], int info_count,
duke@435	302	uint64_t outdata[], uint_t validity[]) {
duke@435	303	return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count,
duke@435	304	outdata, validity) : -1;
duke@435	305	}
duke@435	306
duke@435	307	enum {
duke@435	308	clear_interrupted = true
duke@435	309	};
duke@435	310	static void setup_interruptible(JavaThread* thread);
duke@435	311	static void setup_interruptible_already_blocked(JavaThread* thread);
duke@435	312	static JavaThread* setup_interruptible();
duke@435	313	static void cleanup_interruptible(JavaThread* thread);
duke@435	314
duke@435	315	// perf counter incrementers used by _INTERRUPTIBLE
duke@435	316
duke@435	317	static void bump_interrupted_before_count();
duke@435	318	static void bump_interrupted_during_count();
duke@435	319
duke@435	320	#ifdef ASSERT
duke@435	321	static JavaThread* setup_interruptible_native();
duke@435	322	static void cleanup_interruptible_native(JavaThread* thread);
duke@435	323	#endif
duke@435	324
duke@435	325	static sigset_t* unblocked_signals();
duke@435	326	static sigset_t* vm_signals();
duke@435	327	static sigset_t* allowdebug_blocked_signals();
duke@435	328
duke@435	329	// %%% Following should be promoted to os.hpp:
duke@435	330	// Trace number of created threads
duke@435	331	static jint _os_thread_limit;
duke@435	332	static volatile jint _os_thread_count;
duke@435	333
duke@435	334	// Minimum stack size a thread can be created with (allowing
duke@435	335	// the VM to completely create the thread and enter user code)
duke@435	336
duke@435	337	static size_t min_stack_allowed;
duke@435	338
duke@435	339	// Stack overflow handling
duke@435	340
duke@435	341	static int max_register_window_saves_before_flushing();
duke@435	342
duke@435	343	// Stack repair handling
duke@435	344
duke@435	345	// none present
duke@435	346
duke@435	347	};
duke@435	348
zgu@3900	349	class PlatformEvent : public CHeapObj<mtInternal> {
duke@435	350	private:
duke@435	351	double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line
duke@435	352	volatile int _Event ;
duke@435	353	int _nParked ;
duke@435	354	int _pipev [2] ;
duke@435	355	mutex_t _mutex [1] ;
duke@435	356	cond_t _cond [1] ;
duke@435	357	double PostPad [2] ;
duke@435	358
duke@435	359	protected:
duke@435	360	// Defining a protected ctor effectively gives us an abstract base class.
duke@435	361	// That is, a PlatformEvent can never be instantiated "naked" but only
duke@435	362	// as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent).
duke@435	363	// TODO-FIXME: make dtor private
duke@435	364	~PlatformEvent() { guarantee (0, "invariant") ; }
duke@435	365	PlatformEvent() {
duke@435	366	int status;
duke@435	367	status = os::Solaris::cond_init(_cond);
duke@435	368	assert_status(status == 0, status, "cond_init");
duke@435	369	status = os::Solaris::mutex_init(_mutex);
duke@435	370	assert_status(status == 0, status, "mutex_init");
duke@435	371	_Event = 0 ;
duke@435	372	_nParked = 0 ;
duke@435	373	_pipev[0] = _pipev[1] = -1 ;
duke@435	374	}
duke@435	375
duke@435	376	public:
duke@435	377	// Exercise caution using reset() and fired() -- they may require MEMBARs
duke@435	378	void reset() { _Event = 0 ; }
duke@435	379	int fired() { return _Event; }
duke@435	380	void park () ;
duke@435	381	int park (jlong millis) ;
duke@435	382	int TryPark () ;
duke@435	383	void unpark () ;
duke@435	384	} ;
duke@435	385
zgu@3900	386	class PlatformParker : public CHeapObj<mtInternal> {
duke@435	387	protected:
duke@435	388	mutex_t _mutex [1] ;
duke@435	389	cond_t _cond [1] ;
duke@435	390
duke@435	391	public: // TODO-FIXME: make dtor private
duke@435	392	~PlatformParker() { guarantee (0, "invariant") ; }
duke@435	393
duke@435	394	public:
duke@435	395	PlatformParker() {
duke@435	396	int status;
duke@435	397	status = os::Solaris::cond_init(_cond);
duke@435	398	assert_status(status == 0, status, "cond_init");
duke@435	399	status = os::Solaris::mutex_init(_mutex);
duke@435	400	assert_status(status == 0, status, "mutex_init");
duke@435	401	}
duke@435	402	} ;
stefank@2314	403
stefank@2314	404	#endif // OS_SOLARIS_VM_OS_SOLARIS_HPP