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src/os/windows/vm/hpi_windows.cpp@956304450e80 (annotated)

src/os/windows/vm/hpi_windows.cpp

Wed, 01 Apr 2009 16:38:01 -0400

author

phh

date

Wed, 01 Apr 2009 16:38:01 -0400

changeset 1126

956304450e80

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6819213: revive sun.boot.library.path
Summary: Support multiplex and mutable sun.boot.library.path
Reviewed-by: acorn, dcubed, xlu

duke@435	1	/*
duke@435	2	* Copyright 1998-2006 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	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_hpi_windows.cpp.incl"
duke@435	27
duke@435	28	typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *);
duke@435	29
duke@435	30	void hpi::initialize_get_interface(vm_calls_t *callbacks)
duke@435	31	{
duke@435	32	// Build name of HPI.
duke@435	33	char lib_name[JVM_MAXPATHLEN];
duke@435	34
duke@435	35	if (HPILibPath && HPILibPath[0]) {
duke@435	36	strncpy(lib_name, HPILibPath, JVM_MAXPATHLEN - 1);
duke@435	37	lib_name[JVM_MAXPATHLEN - 1] = '\0';
duke@435	38	} else {
duke@435	39	os::jvm_path(lib_name, sizeof lib_name);
duke@435	40
duke@435	41	#ifdef PRODUCT
duke@435	42	const char *hpi_lib = "\\hpi.dll";
duke@435	43	#else
duke@435	44	char *ptr = strrchr(lib_name, '\\');
duke@435	45	// On Win98 GetModuleFileName() returns the path in the upper case.
duke@435	46	assert(_strnicmp(ptr, "\\jvm",4) == 0, "invalid library name");
duke@435	47	const char *hpi_lib = (_strnicmp(ptr, "\\jvm_g",6) == 0) ? "\\hpi_g.dll" : "\\hpi.dll";
duke@435	48	#endif
duke@435	49
duke@435	50	*(::strrchr(lib_name, '\\')) = '\0'; /* get rid of "\\jvm.dll" */
duke@435	51	char *p = ::strrchr(lib_name, '\\');
duke@435	52	if (p != NULL) *p = '\0'; /* get rid of "\\hotspot" */
duke@435	53	strcat(lib_name, hpi_lib);
duke@435	54	}
duke@435	55
duke@435	56	// Load it.
duke@435	57	if (TraceHPI) tty->print_cr("Loading HPI %s ", lib_name);
duke@435	58	HINSTANCE lib_handle = LoadLibrary(lib_name);
duke@435	59	if (lib_handle == NULL) {
duke@435	60	if (TraceHPI) tty->print_cr("LoadLibrary failed, code = %d", GetLastError());
duke@435	61	return;
duke@435	62	}
duke@435	63
duke@435	64	// Find hpi initializer.
duke@435	65	init_t initer = (init_t)GetProcAddress(lib_handle, "DLL_Initialize");
duke@435	66	if (initer == NULL) {
duke@435	67	if (TraceHPI) tty->print_cr("GetProcAddress failed, errcode = %d", GetLastError());
duke@435	68	return;
duke@435	69	}
duke@435	70
duke@435	71	// Call initializer.
duke@435	72	jint init_result = (*initer)(&_get_interface, callbacks);
duke@435	73	if (init_result < 0) {
duke@435	74	if (TraceHPI) tty->print_cr("DLL_Initialize failed, returned %ld", init_result);
duke@435	75	return;
duke@435	76	}
duke@435	77
duke@435	78	if (TraceHPI) tty->print_cr("success");
duke@435	79	return;
duke@435	80	}