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src/share/vm/classfile/classFileStream.cpp@c18cbe5936b8 (annotated)

src/share/vm/classfile/classFileStream.cpp

Thu, 27 May 2010 19:08:38 -0700

author

trims

date

Thu, 27 May 2010 19:08:38 -0700

changeset 1907

c18cbe5936b8

parent 435

a61af66fc99e

child 2314

f95d63e2154a

permissions

-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

duke@435	1	/*
trims@1907	2	* Copyright (c) 1997, 2005, 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
duke@435	25	#include "incls/_precompiled.incl"
duke@435	26	#include "incls/_classFileStream.cpp.incl"
duke@435	27
duke@435	28	void ClassFileStream::truncated_file_error(TRAPS) {
duke@435	29	THROW_MSG(vmSymbols::java_lang_ClassFormatError(), "Truncated class file");
duke@435	30	}
duke@435	31
duke@435	32	ClassFileStream::ClassFileStream(u1* buffer, int length, char* source) {
duke@435	33	_buffer_start = buffer;
duke@435	34	_buffer_end = buffer + length;
duke@435	35	_current = buffer;
duke@435	36	_source = source;
duke@435	37	_need_verify = false;
duke@435	38	}
duke@435	39
duke@435	40	u1 ClassFileStream::get_u1(TRAPS) {
duke@435	41	if (_need_verify) {
duke@435	42	guarantee_more(1, CHECK_0);
duke@435	43	} else {
duke@435	44	assert(1 <= _buffer_end - _current, "buffer overflow");
duke@435	45	}
duke@435	46	return *_current++;
duke@435	47	}
duke@435	48
duke@435	49	u2 ClassFileStream::get_u2(TRAPS) {
duke@435	50	if (_need_verify) {
duke@435	51	guarantee_more(2, CHECK_0);
duke@435	52	} else {
duke@435	53	assert(2 <= _buffer_end - _current, "buffer overflow");
duke@435	54	}
duke@435	55	u1* tmp = _current;
duke@435	56	_current += 2;
duke@435	57	return Bytes::get_Java_u2(tmp);
duke@435	58	}
duke@435	59
duke@435	60	u4 ClassFileStream::get_u4(TRAPS) {
duke@435	61	if (_need_verify) {
duke@435	62	guarantee_more(4, CHECK_0);
duke@435	63	} else {
duke@435	64	assert(4 <= _buffer_end - _current, "buffer overflow");
duke@435	65	}
duke@435	66	u1* tmp = _current;
duke@435	67	_current += 4;
duke@435	68	return Bytes::get_Java_u4(tmp);
duke@435	69	}
duke@435	70
duke@435	71	u8 ClassFileStream::get_u8(TRAPS) {
duke@435	72	if (_need_verify) {
duke@435	73	guarantee_more(8, CHECK_0);
duke@435	74	} else {
duke@435	75	assert(8 <= _buffer_end - _current, "buffer overflow");
duke@435	76	}
duke@435	77	u1* tmp = _current;
duke@435	78	_current += 8;
duke@435	79	return Bytes::get_Java_u8(tmp);
duke@435	80	}
duke@435	81
duke@435	82	void ClassFileStream::skip_u1(int length, TRAPS) {
duke@435	83	if (_need_verify) {
duke@435	84	guarantee_more(length, CHECK);
duke@435	85	}
duke@435	86	_current += length;
duke@435	87	}
duke@435	88
duke@435	89	void ClassFileStream::skip_u2(int length, TRAPS) {
duke@435	90	if (_need_verify) {
duke@435	91	guarantee_more(length * 2, CHECK);
duke@435	92	}
duke@435	93	_current += length * 2;
duke@435	94	}