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src/share/vm/runtime/hpi.hpp@87770dcf831b (annotated)

src/share/vm/runtime/hpi.hpp

Tue, 22 Sep 2009 21:12:37 -0600

author

dcubed

date

Tue, 22 Sep 2009 21:12:37 -0600

changeset 1414

87770dcf831b

parent 1279

bd02caa94611

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6876794: 4/4 sp07t002 hangs very intermittently
Summary: remove over locking by VMThread on "is thread suspended?" check
Reviewed-by: dholmes, acorn, andrew

duke@435	1	/*
xdono@1279	2	* Copyright 1998-2009 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	//
duke@435	26	// C++ wrapper to HPI.
duke@435	27	//
duke@435	28
duke@435	29	class hpi : AllStatic {
duke@435	30
duke@435	31	private:
duke@435	32	static GetInterfaceFunc _get_interface;
duke@435	33	static HPI_FileInterface* _file;
duke@435	34	static HPI_SocketInterface* _socket;
duke@435	35	static HPI_LibraryInterface* _library;
duke@435	36	static HPI_SystemInterface* _system;
duke@435	37
duke@435	38	private:
duke@435	39	static void initialize_get_interface(vm_calls_t *callbacks);
duke@435	40
duke@435	41	public:
duke@435	42	// Load and initialize everything except sockets.
duke@435	43	static jint initialize();
duke@435	44
duke@435	45	// Socket library needs to be lazy intialized because eagerly
duke@435	46	// loading Winsock is known to cause "connect to your ISP"
duke@435	47	// dialog to show up. Or so goes the legend.
duke@435	48	static jint initialize_socket_library();
duke@435	49
duke@435	50	// HPI_FileInterface
duke@435	51	static inline char* native_path(char *path);
duke@435	52	static inline int file_type(const char *path);
duke@435	53	static inline int open(const char *name, int mode, int perm);
duke@435	54	static inline int close(int fd);
duke@435	55	static inline jlong lseek(int fd, jlong off, int whence);
duke@435	56	static inline int ftruncate(int fd, jlong length);
duke@435	57	static inline int fsync(int fd);
duke@435	58	static inline int available(int fd, jlong *bytes);
duke@435	59	static inline size_t read(int fd, void *buf, unsigned int nBytes);
duke@435	60	static inline size_t write(int fd, const void *buf, unsigned int nBytes);
duke@435	61	static inline int fsize(int fd, jlong *size);
duke@435	62
duke@435	63	// HPI_SocketInterface
duke@435	64	static inline int socket(int domain, int type, int protocol);
duke@435	65	static inline int socket_close(int fd);
duke@435	66	static inline int socket_shutdown(int fd, int howto);
duke@435	67	static inline int recv(int fd, char *buf, int nBytes, int flags);
duke@435	68	static inline int send(int fd, char *buf, int nBytes, int flags);
never@657	69	// Variant of send that doesn't support interruptible I/O
never@657	70	static inline int raw_send(int fd, char *buf, int nBytes, int flags);
duke@435	71	static inline int timeout(int fd, long timeout);
duke@435	72	static inline int listen(int fd, int count);
duke@435	73	static inline int connect(int fd, struct sockaddr *him, int len);
duke@435	74	static inline int bind(int fd, struct sockaddr *him, int len);
duke@435	75	static inline int accept(int fd, struct sockaddr *him, int *len);
duke@435	76	static inline int recvfrom(int fd, char *buf, int nbytes, int flags,
duke@435	77	struct sockaddr *from, int *fromlen);
duke@435	78	static inline int get_sock_name(int fd, struct sockaddr *him, int *len);
duke@435	79	static inline int sendto(int fd, char *buf, int len, int flags,
duke@435	80	struct sockaddr *to, int tolen);
duke@435	81	static inline int socket_available(int fd, jint *pbytes);
duke@435	82
duke@435	83	static inline int get_sock_opt(int fd, int level, int optname,
duke@435	84	char *optval, int* optlen);
duke@435	85	static inline int set_sock_opt(int fd, int level, int optname,
duke@435	86	const char *optval, int optlen);
duke@435	87	static inline int get_host_name(char* name, int namelen);
duke@435	88	static inline struct hostent* get_host_by_addr(const char* name, int len, int type);
duke@435	89	static inline struct hostent* get_host_by_name(char* name);
duke@435	90	static inline struct protoent* get_proto_by_name(char* name);
duke@435	91
duke@435	92	// HPI_LibraryInterface
phh@1126	93	static inline void dll_build_name(char *buf, int buf_len, const char* path,
duke@435	94	const char *name);
duke@435	95	static inline void* dll_load(const char *name, char *ebuf, int ebuflen);
duke@435	96	static inline void dll_unload(void *lib);
duke@435	97	static inline void* dll_lookup(void *lib, const char *name);
duke@435	98
duke@435	99	// HPI_SystemInterface
duke@435	100	static inline int lasterror(char *buf, int len);
duke@435	101	};
duke@435	102
duke@435	103	//
duke@435	104	// Macros that provide inline bodies for the functions.
duke@435	105	//
duke@435	106
duke@435	107	#define HPIDECL(name, names, intf, func, ret_type, ret_fmt, arg_type, arg_print, arg) \
duke@435	108	inline ret_type hpi::name arg_type { \
duke@435	109	if (TraceHPI) { \
duke@435	110	tty->print("hpi::" names "("); \
duke@435	111	tty->print arg_print ; \
duke@435	112	tty->print(") = "); \
duke@435	113	} \
duke@435	114	ret_type result = (*intf->func) arg ; \
duke@435	115	if (TraceHPI) { \
duke@435	116	tty->print_cr(ret_fmt, result); \
duke@435	117	} \
duke@435	118	return result; \
duke@435	119	}
duke@435	120
duke@435	121	// Macro to facilitate moving HPI functionality into the vm.
duke@435	122	// See bug 6348631. The only difference between this macro and
duke@435	123	// HPIDECL is that we call a vm method rather than use the HPI
duke@435	124	// transfer vector. Ultimately, we'll replace HPIDECL with
duke@435	125	// VM_HPIDECL for all hpi methods.
duke@435	126	#define VM_HPIDECL(name, names, func, ret_type, ret_fmt, arg_type,arg_print, arg) \
duke@435	127	inline ret_type hpi::name arg_type { \
duke@435	128	if (TraceHPI) { \
duke@435	129	tty->print("hpi::" names "("); \
duke@435	130	tty->print arg_print ; \
duke@435	131	tty->print(") = "); \
duke@435	132	} \
duke@435	133	ret_type result = func arg ; \
duke@435	134	if (TraceHPI) { \
duke@435	135	tty->print_cr(ret_fmt, result); \
duke@435	136	} \
duke@435	137	return result; \
duke@435	138	}
duke@435	139
phh@1126	140	#define VM_HPIDECL_VOID(name, names, func, arg_type, arg_print, arg) \
phh@1126	141	inline void hpi::name arg_type { \
phh@1126	142	if (TraceHPI) { \
phh@1126	143	tty->print("hpi::" names "("); \
phh@1126	144	tty->print arg_print; \
phh@1126	145	tty->print(") = "); \
phh@1126	146	} \
phh@1126	147	func arg; \
phh@1126	148	}
duke@435	149
duke@435	150	#define HPIDECL_VOID(name, names, intf, func, arg_type, arg_print, arg) \
duke@435	151	inline void hpi::name arg_type { \
duke@435	152	if (TraceHPI) { \
duke@435	153	tty->print("hpi::" names "("); \
duke@435	154	tty->print arg_print ; \
duke@435	155	tty->print_cr(") = void"); \
duke@435	156	} \
duke@435	157	(*intf->func) arg ; \
duke@435	158	}
duke@435	159
duke@435	160
duke@435	161	// The macro calls below realize into
duke@435	162	// inline char * hpi::native_path(...) { inlined_body; }
duke@435	163	// etc.
duke@435	164
duke@435	165	// HPI_FileInterface
duke@435	166
duke@435	167	HPIDECL(native_path, "native_path", _file, NativePath, char *, "%s",
duke@435	168	(char *path),
duke@435	169	("path = %s", path),
duke@435	170	(path));
duke@435	171
duke@435	172	HPIDECL(file_type, "file_type", _file, FileType, int, "%d",
duke@435	173	(const char *path),
duke@435	174	("path = %s", path),
duke@435	175	(path));
duke@435	176
duke@435	177	HPIDECL(open, "open", _file, Open, int, "%d",
duke@435	178	(const char *name, int mode, int perm),
duke@435	179	("name = %s, mode = %d, perm = %d", name, mode, perm),
duke@435	180	(name, mode, perm));
duke@435	181
duke@435	182	HPIDECL(lseek, "seek", _file, Seek, jlong, "(a jlong)",
duke@435	183	(int fd, jlong off, int whence),
duke@435	184	("fd = %d, off = (a jlong), whence = %d", fd, /* off, */ whence),
duke@435	185	(fd, off, whence));
duke@435	186
duke@435	187	HPIDECL(ftruncate, "ftruncate", _file, SetLength, int, "%d",
duke@435	188	(int fd, jlong length),
duke@435	189	("fd = %d, length = (a jlong)", fd /*, length */),
duke@435	190	(fd, length));
duke@435	191
duke@435	192	HPIDECL(fsync, "fsync", _file, Sync, int, "%d",
duke@435	193	(int fd),
duke@435	194	("fd = %d", fd),
duke@435	195	(fd));
duke@435	196
duke@435	197	HPIDECL(available, "available", _file, Available, int, "%d",
duke@435	198	(int fd, jlong *bytes),
duke@435	199	("fd = %d, bytes = %p", fd, bytes),
duke@435	200	(fd, bytes));
duke@435	201
duke@435	202	HPIDECL(fsize, "fsize", _file, FileSizeFD, int, "%d",
duke@435	203	(int fd, jlong *size),
duke@435	204	("fd = %d, size = %p", fd, size),
duke@435	205	(fd, size));
duke@435	206
duke@435	207	// HPI_LibraryInterface
phh@1126	208	VM_HPIDECL_VOID(dll_build_name, "dll_build_name", os::dll_build_name,
phh@1126	209	(char *buf, int buf_len, const char *path, const char *name),
phh@1126	210	("buf = %p, buflen = %d, path = %s, name = %s",
phh@1126	211	buf, buf_len, path, name),
phh@1126	212	(buf, buf_len, path, name));
duke@435	213
duke@435	214	VM_HPIDECL(dll_load, "dll_load", os::dll_load,
duke@435	215	void *, "(void *)%p",
duke@435	216	(const char *name, char *ebuf, int ebuflen),
duke@435	217	("name = %s, ebuf = %p, ebuflen = %d", name, ebuf, ebuflen),
duke@435	218	(name, ebuf, ebuflen));
duke@435	219
duke@435	220	HPIDECL_VOID(dll_unload, "dll_unload", _library, UnloadLibrary,
duke@435	221	(void *lib),
duke@435	222	("lib = %p", lib),
duke@435	223	(lib));
duke@435	224
duke@435	225	HPIDECL(dll_lookup, "dll_lookup", _library, FindLibraryEntry, void *, "%p",
duke@435	226	(void *lib, const char *name),
duke@435	227	("lib = %p, name = %s", lib, name),
duke@435	228	(lib, name));
duke@435	229
duke@435	230	// HPI_SystemInterface
duke@435	231	HPIDECL(lasterror, "lasterror", _system, GetLastErrorString, int, "%d",
duke@435	232	(char *buf, int len),
duke@435	233	("buf = %p, len = %d", buf, len),
duke@435	234	(buf, len));