1443 lines
42 KiB
C++
1443 lines
42 KiB
C++
/*
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* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "compiler/compileLog.hpp"
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#include "gc/shared/gcId.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/os.hpp"
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#include "runtime/vm_version.hpp"
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#include "utilities/defaultStream.hpp"
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#include "utilities/macros.hpp"
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#include "utilities/ostream.hpp"
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#include "utilities/top.hpp"
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#include "utilities/xmlstream.hpp"
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extern "C" void jio_print(const char* s); // Declarationtion of jvm method
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outputStream::outputStream(int width) {
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_width = width;
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_position = 0;
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_newlines = 0;
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_precount = 0;
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_indentation = 0;
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}
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outputStream::outputStream(int width, bool has_time_stamps) {
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_width = width;
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_position = 0;
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_newlines = 0;
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_precount = 0;
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_indentation = 0;
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if (has_time_stamps) _stamp.update();
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}
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void outputStream::update_position(const char* s, size_t len) {
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for (size_t i = 0; i < len; i++) {
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char ch = s[i];
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if (ch == '\n') {
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_newlines += 1;
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_precount += _position + 1;
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_position = 0;
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} else if (ch == '\t') {
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int tw = 8 - (_position & 7);
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_position += tw;
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_precount -= tw-1; // invariant: _precount + _position == total count
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} else {
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_position += 1;
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}
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}
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}
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// Execute a vsprintf, using the given buffer if necessary.
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// Return a pointer to the formatted string.
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const char* outputStream::do_vsnprintf(char* buffer, size_t buflen,
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const char* format, va_list ap,
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bool add_cr,
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size_t& result_len) {
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assert(buflen >= 2, "buffer too small");
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const char* result;
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if (add_cr) buflen--;
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if (!strchr(format, '%')) {
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// constant format string
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result = format;
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result_len = strlen(result);
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if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
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} else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') {
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// trivial copy-through format string
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result = va_arg(ap, const char*);
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result_len = strlen(result);
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if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
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} else {
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// Handle truncation:
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// posix: upon truncation, vsnprintf returns number of bytes which
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// would have been written (excluding terminating zero) had the buffer
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// been large enough
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// windows: upon truncation, vsnprintf returns -1
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const int written = vsnprintf(buffer, buflen, format, ap);
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result = buffer;
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if (written < (int) buflen && written >= 0) {
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result_len = written;
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} else {
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DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");)
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result_len = buflen - 1;
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buffer[result_len] = 0;
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}
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}
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if (add_cr) {
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if (result != buffer) {
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memcpy(buffer, result, result_len);
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result = buffer;
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}
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buffer[result_len++] = '\n';
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buffer[result_len] = 0;
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}
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return result;
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}
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void outputStream::print(const char* format, ...) {
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char buffer[O_BUFLEN];
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va_list ap;
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va_start(ap, format);
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size_t len;
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const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len);
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write(str, len);
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va_end(ap);
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}
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void outputStream::print_cr(const char* format, ...) {
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char buffer[O_BUFLEN];
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va_list ap;
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va_start(ap, format);
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size_t len;
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const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len);
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write(str, len);
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va_end(ap);
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}
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void outputStream::vprint(const char *format, va_list argptr) {
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char buffer[O_BUFLEN];
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size_t len;
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const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len);
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write(str, len);
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}
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void outputStream::vprint_cr(const char* format, va_list argptr) {
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char buffer[O_BUFLEN];
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size_t len;
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const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
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write(str, len);
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}
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void outputStream::fill_to(int col) {
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int need_fill = col - position();
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sp(need_fill);
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}
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void outputStream::move_to(int col, int slop, int min_space) {
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if (position() >= col + slop)
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cr();
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int need_fill = col - position();
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if (need_fill < min_space)
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need_fill = min_space;
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sp(need_fill);
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}
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void outputStream::put(char ch) {
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assert(ch != 0, "please fix call site");
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char buf[] = { ch, '\0' };
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write(buf, 1);
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}
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#define SP_USE_TABS false
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void outputStream::sp(int count) {
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if (count < 0) return;
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if (SP_USE_TABS && count >= 8) {
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int target = position() + count;
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while (count >= 8) {
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this->write("\t", 1);
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count -= 8;
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}
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count = target - position();
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}
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while (count > 0) {
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int nw = (count > 8) ? 8 : count;
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this->write(" ", nw);
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count -= nw;
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}
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}
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void outputStream::cr() {
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this->write("\n", 1);
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}
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void outputStream::stamp() {
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if (! _stamp.is_updated()) {
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_stamp.update(); // start at 0 on first call to stamp()
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}
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// outputStream::stamp() may get called by ostream_abort(), use snprintf
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// to avoid allocating large stack buffer in print().
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char buf[40];
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jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds());
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print_raw(buf);
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}
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void outputStream::stamp(bool guard,
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const char* prefix,
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const char* suffix) {
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if (!guard) {
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return;
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}
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print_raw(prefix);
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stamp();
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print_raw(suffix);
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}
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void outputStream::date_stamp(bool guard,
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const char* prefix,
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const char* suffix) {
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if (!guard) {
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return;
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}
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print_raw(prefix);
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static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz";
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static const int buffer_length = 32;
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char buffer[buffer_length];
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const char* iso8601_result = os::iso8601_time(buffer, buffer_length);
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if (iso8601_result != NULL) {
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print_raw(buffer);
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} else {
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print_raw(error_time);
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}
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print_raw(suffix);
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return;
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}
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void outputStream::gclog_stamp(const GCId& gc_id) {
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date_stamp(PrintGCDateStamps);
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stamp(PrintGCTimeStamps);
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if (PrintGCID) {
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print("#%u: ", gc_id.id());
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}
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}
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outputStream& outputStream::indent() {
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while (_position < _indentation) sp();
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return *this;
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}
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void outputStream::print_jlong(jlong value) {
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print(JLONG_FORMAT, value);
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}
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void outputStream::print_julong(julong value) {
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print(JULONG_FORMAT, value);
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}
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/**
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* This prints out hex data in a 'windbg' or 'xxd' form, where each line is:
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* <hex-address>: 8 * <hex-halfword> <ascii translation (optional)>
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* example:
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* 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............
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* 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... ....
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* 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......]
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* ...
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*
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* indent is applied to each line. Ends with a CR.
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*/
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void outputStream::print_data(void* data, size_t len, bool with_ascii) {
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size_t limit = (len + 16) / 16 * 16;
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for (size_t i = 0; i < limit; ++i) {
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if (i % 16 == 0) {
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indent().print(INTPTR_FORMAT_W(07)":", i);
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}
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if (i % 2 == 0) {
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print(" ");
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}
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if (i < len) {
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print("%02x", ((unsigned char*)data)[i]);
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} else {
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print(" ");
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}
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if ((i + 1) % 16 == 0) {
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if (with_ascii) {
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print(" ");
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for (size_t j = 0; j < 16; ++j) {
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size_t idx = i + j - 15;
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if (idx < len) {
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char c = ((char*)data)[idx];
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print("%c", c >= 32 && c <= 126 ? c : '.');
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}
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}
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}
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cr();
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}
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}
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}
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stringStream::stringStream(size_t initial_size) : outputStream() {
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buffer_length = initial_size;
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buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
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buffer_pos = 0;
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buffer_fixed = false;
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DEBUG_ONLY(rm = Thread::current()->current_resource_mark();)
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}
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// useful for output to fixed chunks of memory, such as performance counters
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stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
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buffer_length = fixed_buffer_size;
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buffer = fixed_buffer;
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buffer_pos = 0;
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buffer_fixed = true;
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}
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void stringStream::write(const char* s, size_t len) {
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size_t write_len = len; // number of non-null bytes to write
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size_t end = buffer_pos + len + 1; // position after write and final '\0'
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if (end > buffer_length) {
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if (buffer_fixed) {
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// if buffer cannot resize, silently truncate
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end = buffer_length;
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write_len = end - buffer_pos - 1; // leave room for the final '\0'
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} else {
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// For small overruns, double the buffer. For larger ones,
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// increase to the requested size.
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if (end < buffer_length * 2) {
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end = buffer_length * 2;
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}
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char* oldbuf = buffer;
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assert(rm == NULL || Thread::current()->current_resource_mark() == rm,
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"stringStream is re-allocated with a different ResourceMark");
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buffer = NEW_RESOURCE_ARRAY(char, end);
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if (buffer_pos > 0) {
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memcpy(buffer, oldbuf, buffer_pos);
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}
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buffer_length = end;
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}
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}
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// invariant: buffer is always null-terminated
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guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob");
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if (write_len > 0) {
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buffer[buffer_pos + write_len] = 0;
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memcpy(buffer + buffer_pos, s, write_len);
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buffer_pos += write_len;
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}
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// Note that the following does not depend on write_len.
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// This means that position and count get updated
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// even when overflow occurs.
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update_position(s, len);
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}
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char* stringStream::as_string() {
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char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1);
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strncpy(copy, buffer, buffer_pos);
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copy[buffer_pos] = 0; // terminating null
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return copy;
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}
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stringStream::~stringStream() {}
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xmlStream* xtty;
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outputStream* tty;
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outputStream* gclog_or_tty;
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CDS_ONLY(fileStream* classlist_file;) // Only dump the classes that can be stored into the CDS archive
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extern Mutex* tty_lock;
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#define EXTRACHARLEN 32
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#define CURRENTAPPX ".current"
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// convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS
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char* get_datetime_string(char *buf, size_t len) {
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os::local_time_string(buf, len);
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int i = (int)strlen(buf);
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while (i-- >= 0) {
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if (buf[i] == ' ') buf[i] = '_';
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else if (buf[i] == ':') buf[i] = '-';
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}
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return buf;
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}
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static const char* make_log_name_internal(const char* log_name, const char* force_directory,
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int pid, const char* tms) {
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const char* basename = log_name;
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char file_sep = os::file_separator()[0];
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const char* cp;
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char pid_text[32];
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for (cp = log_name; *cp != '\0'; cp++) {
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if (*cp == '/' || *cp == file_sep) {
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basename = cp + 1;
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}
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}
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const char* nametail = log_name;
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// Compute buffer length
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size_t buffer_length;
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if (force_directory != NULL) {
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buffer_length = strlen(force_directory) + strlen(os::file_separator()) +
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strlen(basename) + 1;
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} else {
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buffer_length = strlen(log_name) + 1;
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}
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const char* pts = strstr(basename, "%p");
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int pid_pos = (pts == NULL) ? -1 : (pts - nametail);
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if (pid_pos >= 0) {
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jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid);
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buffer_length += strlen(pid_text);
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}
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pts = strstr(basename, "%t");
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int tms_pos = (pts == NULL) ? -1 : (pts - nametail);
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if (tms_pos >= 0) {
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buffer_length += strlen(tms);
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}
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// File name is too long.
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if (buffer_length > JVM_MAXPATHLEN) {
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return NULL;
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}
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// Create big enough buffer.
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char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal);
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strcpy(buf, "");
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if (force_directory != NULL) {
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strcat(buf, force_directory);
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strcat(buf, os::file_separator());
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nametail = basename; // completely skip directory prefix
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}
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// who is first, %p or %t?
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int first = -1, second = -1;
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const char *p1st = NULL;
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const char *p2nd = NULL;
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if (pid_pos >= 0 && tms_pos >= 0) {
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// contains both %p and %t
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if (pid_pos < tms_pos) {
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// case foo%pbar%tmonkey.log
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first = pid_pos;
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p1st = pid_text;
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second = tms_pos;
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p2nd = tms;
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} else {
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// case foo%tbar%pmonkey.log
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first = tms_pos;
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p1st = tms;
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second = pid_pos;
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p2nd = pid_text;
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}
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} else if (pid_pos >= 0) {
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// contains %p only
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first = pid_pos;
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p1st = pid_text;
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} else if (tms_pos >= 0) {
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// contains %t only
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first = tms_pos;
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p1st = tms;
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}
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int buf_pos = (int)strlen(buf);
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const char* tail = nametail;
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if (first >= 0) {
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tail = nametail + first + 2;
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strncpy(&buf[buf_pos], nametail, first);
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strcpy(&buf[buf_pos + first], p1st);
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buf_pos = (int)strlen(buf);
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if (second >= 0) {
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strncpy(&buf[buf_pos], tail, second - first - 2);
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strcpy(&buf[buf_pos + second - first - 2], p2nd);
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tail = nametail + second + 2;
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}
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}
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strcat(buf, tail); // append rest of name, or all of name
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return buf;
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}
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// log_name comes from -XX:LogFile=log_name, -Xloggc:log_name or
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// -XX:DumpLoadedClassList=<file_name>
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// in log_name, %p => pid1234 and
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// %t => YYYY-MM-DD_HH-MM-SS
|
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static const char* make_log_name(const char* log_name, const char* force_directory) {
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char timestr[32];
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get_datetime_string(timestr, sizeof(timestr));
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return make_log_name_internal(log_name, force_directory, os::current_process_id(),
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timestr);
|
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}
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|
|
#ifndef PRODUCT
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void test_loggc_filename() {
|
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int pid;
|
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char tms[32];
|
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char i_result[JVM_MAXPATHLEN];
|
|
const char* o_result;
|
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get_datetime_string(tms, sizeof(tms));
|
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pid = os::current_process_id();
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|
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// test.log
|
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jio_snprintf(i_result, JVM_MAXPATHLEN, "test.log", tms);
|
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o_result = make_log_name_internal("test.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
// test-%t-%p.log
|
|
jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%s-pid%u.log", tms, pid);
|
|
o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
// test-%t%p.log
|
|
jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%spid%u.log", tms, pid);
|
|
o_result = make_log_name_internal("test-%t%p.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t%%p.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
// %p%t.log
|
|
jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u%s.log", pid, tms);
|
|
o_result = make_log_name_internal("%p%t.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
// %p-test.log
|
|
jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u-test.log", pid);
|
|
o_result = make_log_name_internal("%p-test.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
// %t.log
|
|
jio_snprintf(i_result, JVM_MAXPATHLEN, "%s.log", tms);
|
|
o_result = make_log_name_internal("%t.log", NULL, pid, tms);
|
|
assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)");
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
|
|
{
|
|
// longest filename
|
|
char longest_name[JVM_MAXPATHLEN];
|
|
memset(longest_name, 'a', sizeof(longest_name));
|
|
longest_name[JVM_MAXPATHLEN - 1] = '\0';
|
|
o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms);
|
|
assert(strcmp(longest_name, o_result) == 0, err_msg("longest name does not match. expected '%s' but got '%s'", longest_name, o_result));
|
|
FREE_C_HEAP_ARRAY(char, o_result);
|
|
}
|
|
|
|
{
|
|
// too long file name
|
|
char too_long_name[JVM_MAXPATHLEN + 100];
|
|
int too_long_length = sizeof(too_long_name);
|
|
memset(too_long_name, 'a', too_long_length);
|
|
too_long_name[too_long_length - 1] = '\0';
|
|
o_result = make_log_name_internal((const char*)&too_long_name, NULL, pid, tms);
|
|
assert(o_result == NULL, err_msg("Too long file name should return NULL, but got '%s'", o_result));
|
|
}
|
|
|
|
{
|
|
// too long with timestamp
|
|
char longest_name[JVM_MAXPATHLEN];
|
|
memset(longest_name, 'a', JVM_MAXPATHLEN);
|
|
longest_name[JVM_MAXPATHLEN - 3] = '%';
|
|
longest_name[JVM_MAXPATHLEN - 2] = 't';
|
|
longest_name[JVM_MAXPATHLEN - 1] = '\0';
|
|
o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms);
|
|
assert(o_result == NULL, err_msg("Too long file name after timestamp expansion should return NULL, but got '%s'", o_result));
|
|
}
|
|
|
|
{
|
|
// too long with pid
|
|
char longest_name[JVM_MAXPATHLEN];
|
|
memset(longest_name, 'a', JVM_MAXPATHLEN);
|
|
longest_name[JVM_MAXPATHLEN - 3] = '%';
|
|
longest_name[JVM_MAXPATHLEN - 2] = 'p';
|
|
longest_name[JVM_MAXPATHLEN - 1] = '\0';
|
|
o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms);
|
|
assert(o_result == NULL, err_msg("Too long file name after pid expansion should return NULL, but got '%s'", o_result));
|
|
}
|
|
}
|
|
#endif // PRODUCT
|
|
|
|
fileStream::fileStream(const char* file_name) {
|
|
_file = fopen(file_name, "w");
|
|
if (_file != NULL) {
|
|
_need_close = true;
|
|
} else {
|
|
warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
|
|
_need_close = false;
|
|
}
|
|
}
|
|
|
|
fileStream::fileStream(const char* file_name, const char* opentype) {
|
|
_file = fopen(file_name, opentype);
|
|
if (_file != NULL) {
|
|
_need_close = true;
|
|
} else {
|
|
warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
|
|
_need_close = false;
|
|
}
|
|
}
|
|
|
|
void fileStream::write(const char* s, size_t len) {
|
|
if (_file != NULL) {
|
|
// Make an unused local variable to avoid warning from gcc 4.x compiler.
|
|
size_t count = fwrite(s, 1, len, _file);
|
|
}
|
|
update_position(s, len);
|
|
}
|
|
|
|
long fileStream::fileSize() {
|
|
long size = -1;
|
|
if (_file != NULL) {
|
|
long pos = ::ftell(_file);
|
|
if (::fseek(_file, 0, SEEK_END) == 0) {
|
|
size = ::ftell(_file);
|
|
}
|
|
::fseek(_file, pos, SEEK_SET);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
char* fileStream::readln(char *data, int count ) {
|
|
char * ret = ::fgets(data, count, _file);
|
|
//Get rid of annoying \n char
|
|
data[::strlen(data)-1] = '\0';
|
|
return ret;
|
|
}
|
|
|
|
fileStream::~fileStream() {
|
|
if (_file != NULL) {
|
|
if (_need_close) fclose(_file);
|
|
_file = NULL;
|
|
}
|
|
}
|
|
|
|
void fileStream::flush() {
|
|
fflush(_file);
|
|
}
|
|
|
|
fdStream::fdStream(const char* file_name) {
|
|
_fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
|
_need_close = true;
|
|
}
|
|
|
|
fdStream::~fdStream() {
|
|
if (_fd != -1) {
|
|
if (_need_close) close(_fd);
|
|
_fd = -1;
|
|
}
|
|
}
|
|
|
|
void fdStream::write(const char* s, size_t len) {
|
|
if (_fd != -1) {
|
|
// Make an unused local variable to avoid warning from gcc 4.x compiler.
|
|
size_t count = ::write(_fd, s, (int)len);
|
|
}
|
|
update_position(s, len);
|
|
}
|
|
|
|
// dump vm version, os version, platform info, build id,
|
|
// memory usage and command line flags into header
|
|
void gcLogFileStream::dump_loggc_header() {
|
|
if (is_open()) {
|
|
print_cr("%s", Abstract_VM_Version::internal_vm_info_string());
|
|
os::print_memory_info(this);
|
|
print("CommandLine flags: ");
|
|
CommandLineFlags::printSetFlags(this);
|
|
}
|
|
}
|
|
|
|
gcLogFileStream::~gcLogFileStream() {
|
|
if (_file != NULL) {
|
|
if (_need_close) fclose(_file);
|
|
_file = NULL;
|
|
}
|
|
if (_file_name != NULL) {
|
|
FREE_C_HEAP_ARRAY(char, _file_name);
|
|
_file_name = NULL;
|
|
}
|
|
}
|
|
|
|
gcLogFileStream::gcLogFileStream(const char* file_name) {
|
|
_cur_file_num = 0;
|
|
_bytes_written = 0L;
|
|
_file_name = make_log_name(file_name, NULL);
|
|
|
|
if (_file_name == NULL) {
|
|
warning("Cannot open file %s: file name is too long.\n", file_name);
|
|
_need_close = false;
|
|
UseGCLogFileRotation = false;
|
|
return;
|
|
}
|
|
|
|
// gc log file rotation
|
|
if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) {
|
|
char tempbuf[JVM_MAXPATHLEN];
|
|
jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num);
|
|
_file = fopen(tempbuf, "w");
|
|
} else {
|
|
_file = fopen(_file_name, "w");
|
|
}
|
|
if (_file != NULL) {
|
|
_need_close = true;
|
|
dump_loggc_header();
|
|
} else {
|
|
warning("Cannot open file %s due to %s\n", _file_name, strerror(errno));
|
|
_need_close = false;
|
|
}
|
|
}
|
|
|
|
void gcLogFileStream::write(const char* s, size_t len) {
|
|
if (_file != NULL) {
|
|
size_t count = fwrite(s, 1, len, _file);
|
|
_bytes_written += count;
|
|
}
|
|
update_position(s, len);
|
|
}
|
|
|
|
// rotate_log must be called from VMThread at safepoint. In case need change parameters
|
|
// for gc log rotation from thread other than VMThread, a sub type of VM_Operation
|
|
// should be created and be submitted to VMThread's operation queue. DO NOT call this
|
|
// function directly. Currently, it is safe to rotate log at safepoint through VMThread.
|
|
// That is, no mutator threads and concurrent GC threads run parallel with VMThread to
|
|
// write to gc log file at safepoint. If in future, changes made for mutator threads or
|
|
// concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log
|
|
// must be synchronized.
|
|
void gcLogFileStream::rotate_log(bool force, outputStream* out) {
|
|
char time_msg[O_BUFLEN];
|
|
char time_str[EXTRACHARLEN];
|
|
char current_file_name[JVM_MAXPATHLEN];
|
|
char renamed_file_name[JVM_MAXPATHLEN];
|
|
|
|
if (!should_rotate(force)) {
|
|
return;
|
|
}
|
|
|
|
#ifdef ASSERT
|
|
Thread *thread = Thread::current();
|
|
assert(thread == NULL ||
|
|
(thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()),
|
|
"Must be VMThread at safepoint");
|
|
#endif
|
|
if (NumberOfGCLogFiles == 1) {
|
|
// rotate in same file
|
|
rewind();
|
|
_bytes_written = 0L;
|
|
jio_snprintf(time_msg, sizeof(time_msg), "File %s rotated at %s\n",
|
|
_file_name, os::local_time_string((char *)time_str, sizeof(time_str)));
|
|
write(time_msg, strlen(time_msg));
|
|
|
|
if (out != NULL) {
|
|
out->print("%s", time_msg);
|
|
}
|
|
|
|
dump_loggc_header();
|
|
return;
|
|
}
|
|
|
|
#if defined(_WINDOWS)
|
|
#ifndef F_OK
|
|
#define F_OK 0
|
|
#endif
|
|
#endif // _WINDOWS
|
|
|
|
// rotate file in names extended_filename.0, extended_filename.1, ...,
|
|
// extended_filename.<NumberOfGCLogFiles - 1>. Current rotation file name will
|
|
// have a form of extended_filename.<i>.current where i is the current rotation
|
|
// file number. After it reaches max file size, the file will be saved and renamed
|
|
// with .current removed from its tail.
|
|
if (_file != NULL) {
|
|
jio_snprintf(renamed_file_name, JVM_MAXPATHLEN, "%s.%d",
|
|
_file_name, _cur_file_num);
|
|
int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN,
|
|
"%s.%d" CURRENTAPPX, _file_name, _cur_file_num);
|
|
if (result >= JVM_MAXPATHLEN) {
|
|
warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name);
|
|
return;
|
|
}
|
|
|
|
const char* msg = force ? "GC log rotation request has been received."
|
|
: "GC log file has reached the maximum size.";
|
|
jio_snprintf(time_msg, sizeof(time_msg), "%s %s Saved as %s\n",
|
|
os::local_time_string((char *)time_str, sizeof(time_str)),
|
|
msg, renamed_file_name);
|
|
write(time_msg, strlen(time_msg));
|
|
|
|
if (out != NULL) {
|
|
out->print("%s", time_msg);
|
|
}
|
|
|
|
fclose(_file);
|
|
_file = NULL;
|
|
|
|
bool can_rename = true;
|
|
if (access(current_file_name, F_OK) != 0) {
|
|
// current file does not exist?
|
|
warning("No source file exists, cannot rename\n");
|
|
can_rename = false;
|
|
}
|
|
if (can_rename) {
|
|
if (access(renamed_file_name, F_OK) == 0) {
|
|
if (remove(renamed_file_name) != 0) {
|
|
warning("Could not delete existing file %s\n", renamed_file_name);
|
|
can_rename = false;
|
|
}
|
|
} else {
|
|
// file does not exist, ok to rename
|
|
}
|
|
}
|
|
if (can_rename && rename(current_file_name, renamed_file_name) != 0) {
|
|
warning("Could not rename %s to %s\n", _file_name, renamed_file_name);
|
|
}
|
|
}
|
|
|
|
_cur_file_num++;
|
|
if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0;
|
|
int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN, "%s.%d" CURRENTAPPX,
|
|
_file_name, _cur_file_num);
|
|
if (result >= JVM_MAXPATHLEN) {
|
|
warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name);
|
|
return;
|
|
}
|
|
|
|
_file = fopen(current_file_name, "w");
|
|
|
|
if (_file != NULL) {
|
|
_bytes_written = 0L;
|
|
_need_close = true;
|
|
// reuse current_file_name for time_msg
|
|
jio_snprintf(current_file_name, JVM_MAXPATHLEN,
|
|
"%s.%d", _file_name, _cur_file_num);
|
|
jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n",
|
|
os::local_time_string((char *)time_str, sizeof(time_str)), current_file_name);
|
|
write(time_msg, strlen(time_msg));
|
|
|
|
if (out != NULL) {
|
|
out->print("%s", time_msg);
|
|
}
|
|
|
|
dump_loggc_header();
|
|
// remove the existing file
|
|
if (access(current_file_name, F_OK) == 0) {
|
|
if (remove(current_file_name) != 0) {
|
|
warning("Could not delete existing file %s\n", current_file_name);
|
|
}
|
|
}
|
|
} else {
|
|
warning("failed to open rotation log file %s due to %s\n"
|
|
"Turned off GC log file rotation\n",
|
|
_file_name, strerror(errno));
|
|
_need_close = false;
|
|
FLAG_SET_DEFAULT(UseGCLogFileRotation, false);
|
|
}
|
|
}
|
|
|
|
defaultStream* defaultStream::instance = NULL;
|
|
int defaultStream::_output_fd = 1;
|
|
int defaultStream::_error_fd = 2;
|
|
FILE* defaultStream::_output_stream = stdout;
|
|
FILE* defaultStream::_error_stream = stderr;
|
|
|
|
#define LOG_MAJOR_VERSION 160
|
|
#define LOG_MINOR_VERSION 1
|
|
|
|
void defaultStream::init() {
|
|
_inited = true;
|
|
if (LogVMOutput || LogCompilation) {
|
|
init_log();
|
|
}
|
|
}
|
|
|
|
bool defaultStream::has_log_file() {
|
|
// lazily create log file (at startup, LogVMOutput is false even
|
|
// if +LogVMOutput is used, because the flags haven't been parsed yet)
|
|
// For safer printing during fatal error handling, do not init logfile
|
|
// if a VM error has been reported.
|
|
if (!_inited && !is_error_reported()) init();
|
|
return _log_file != NULL;
|
|
}
|
|
|
|
fileStream* defaultStream::open_file(const char* log_name) {
|
|
const char* try_name = make_log_name(log_name, NULL);
|
|
if (try_name == NULL) {
|
|
warning("Cannot open file %s: file name is too long.\n", log_name);
|
|
return NULL;
|
|
}
|
|
|
|
fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name);
|
|
FREE_C_HEAP_ARRAY(char, try_name);
|
|
if (file->is_open()) {
|
|
return file;
|
|
}
|
|
|
|
// Try again to open the file in the temp directory.
|
|
delete file;
|
|
char warnbuf[O_BUFLEN*2];
|
|
jio_snprintf(warnbuf, sizeof(warnbuf), "Warning: Cannot open log file: %s\n", log_name);
|
|
// Note: This feature is for maintainer use only. No need for L10N.
|
|
jio_print(warnbuf);
|
|
try_name = make_log_name(log_name, os::get_temp_directory());
|
|
if (try_name == NULL) {
|
|
warning("Cannot open file %s: file name is too long for directory %s.\n", log_name, os::get_temp_directory());
|
|
return NULL;
|
|
}
|
|
|
|
jio_snprintf(warnbuf, sizeof(warnbuf),
|
|
"Warning: Forcing option -XX:LogFile=%s\n", try_name);
|
|
jio_print(warnbuf);
|
|
|
|
file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name);
|
|
FREE_C_HEAP_ARRAY(char, try_name);
|
|
if (file->is_open()) {
|
|
return file;
|
|
}
|
|
|
|
delete file;
|
|
return NULL;
|
|
}
|
|
|
|
void defaultStream::init_log() {
|
|
// %%% Need a MutexLocker?
|
|
const char* log_name = LogFile != NULL ? LogFile : "hotspot_%p.log";
|
|
fileStream* file = open_file(log_name);
|
|
|
|
if (file != NULL) {
|
|
_log_file = file;
|
|
_outer_xmlStream = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file);
|
|
start_log();
|
|
} else {
|
|
// and leave xtty as NULL
|
|
LogVMOutput = false;
|
|
DisplayVMOutput = true;
|
|
LogCompilation = false;
|
|
}
|
|
}
|
|
|
|
void defaultStream::start_log() {
|
|
xmlStream*xs = _outer_xmlStream;
|
|
if (this == tty) xtty = xs;
|
|
// Write XML header.
|
|
xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>");
|
|
// (For now, don't bother to issue a DTD for this private format.)
|
|
jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds();
|
|
// %%% Should be: jlong time_ms = os::start_time_milliseconds(), if
|
|
// we ever get round to introduce that method on the os class
|
|
xs->head("hotspot_log version='%d %d'"
|
|
" process='%d' time_ms='"INT64_FORMAT"'",
|
|
LOG_MAJOR_VERSION, LOG_MINOR_VERSION,
|
|
os::current_process_id(), (int64_t)time_ms);
|
|
// Write VM version header immediately.
|
|
xs->head("vm_version");
|
|
xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr();
|
|
xs->tail("name");
|
|
xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr();
|
|
xs->tail("release");
|
|
xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr();
|
|
xs->tail("info");
|
|
xs->tail("vm_version");
|
|
// Record information about the command-line invocation.
|
|
xs->head("vm_arguments"); // Cf. Arguments::print_on()
|
|
if (Arguments::num_jvm_flags() > 0) {
|
|
xs->head("flags");
|
|
Arguments::print_jvm_flags_on(xs->text());
|
|
xs->tail("flags");
|
|
}
|
|
if (Arguments::num_jvm_args() > 0) {
|
|
xs->head("args");
|
|
Arguments::print_jvm_args_on(xs->text());
|
|
xs->tail("args");
|
|
}
|
|
if (Arguments::java_command() != NULL) {
|
|
xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command());
|
|
xs->tail("command");
|
|
}
|
|
if (Arguments::sun_java_launcher() != NULL) {
|
|
xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher());
|
|
xs->tail("launcher");
|
|
}
|
|
if (Arguments::system_properties() != NULL) {
|
|
xs->head("properties");
|
|
// Print it as a java-style property list.
|
|
// System properties don't generally contain newlines, so don't bother with unparsing.
|
|
outputStream *text = xs->text();
|
|
for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
|
|
// Print in two stages to avoid problems with long
|
|
// keys/values.
|
|
text->print_raw(p->key());
|
|
text->put('=');
|
|
text->print_raw_cr(p->value());
|
|
}
|
|
xs->tail("properties");
|
|
}
|
|
xs->tail("vm_arguments");
|
|
// tty output per se is grouped under the <tty>...</tty> element.
|
|
xs->head("tty");
|
|
// All further non-markup text gets copied to the tty:
|
|
xs->_text = this; // requires friend declaration!
|
|
}
|
|
|
|
// finish_log() is called during normal VM shutdown. finish_log_on_error() is
|
|
// called by ostream_abort() after a fatal error.
|
|
//
|
|
void defaultStream::finish_log() {
|
|
xmlStream* xs = _outer_xmlStream;
|
|
xs->done("tty");
|
|
|
|
// Other log forks are appended here, at the End of Time:
|
|
CompileLog::finish_log(xs->out()); // write compile logging, if any, now
|
|
|
|
xs->done("hotspot_log");
|
|
xs->flush();
|
|
|
|
fileStream* file = _log_file;
|
|
_log_file = NULL;
|
|
|
|
delete _outer_xmlStream;
|
|
_outer_xmlStream = NULL;
|
|
|
|
file->flush();
|
|
delete file;
|
|
}
|
|
|
|
void defaultStream::finish_log_on_error(char *buf, int buflen) {
|
|
xmlStream* xs = _outer_xmlStream;
|
|
|
|
if (xs && xs->out()) {
|
|
|
|
xs->done_raw("tty");
|
|
|
|
// Other log forks are appended here, at the End of Time:
|
|
CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now
|
|
|
|
xs->done_raw("hotspot_log");
|
|
xs->flush();
|
|
|
|
fileStream* file = _log_file;
|
|
_log_file = NULL;
|
|
_outer_xmlStream = NULL;
|
|
|
|
if (file) {
|
|
file->flush();
|
|
|
|
// Can't delete or close the file because delete and fclose aren't
|
|
// async-safe. We are about to die, so leave it to the kernel.
|
|
// delete file;
|
|
}
|
|
}
|
|
}
|
|
|
|
intx defaultStream::hold(intx writer_id) {
|
|
bool has_log = has_log_file(); // check before locking
|
|
if (// impossible, but who knows?
|
|
writer_id == NO_WRITER ||
|
|
|
|
// bootstrap problem
|
|
tty_lock == NULL ||
|
|
|
|
// can't grab a lock or call Thread::current() if TLS isn't initialized
|
|
ThreadLocalStorage::thread() == NULL ||
|
|
|
|
// developer hook
|
|
!SerializeVMOutput ||
|
|
|
|
// VM already unhealthy
|
|
is_error_reported() ||
|
|
|
|
// safepoint == global lock (for VM only)
|
|
(SafepointSynchronize::is_synchronizing() &&
|
|
Thread::current()->is_VM_thread())
|
|
) {
|
|
// do not attempt to lock unless we know the thread and the VM is healthy
|
|
return NO_WRITER;
|
|
}
|
|
if (_writer == writer_id) {
|
|
// already held, no need to re-grab the lock
|
|
return NO_WRITER;
|
|
}
|
|
tty_lock->lock_without_safepoint_check();
|
|
// got the lock
|
|
if (writer_id != _last_writer) {
|
|
if (has_log) {
|
|
_log_file->bol();
|
|
// output a hint where this output is coming from:
|
|
_log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id);
|
|
}
|
|
_last_writer = writer_id;
|
|
}
|
|
_writer = writer_id;
|
|
return writer_id;
|
|
}
|
|
|
|
void defaultStream::release(intx holder) {
|
|
if (holder == NO_WRITER) {
|
|
// nothing to release: either a recursive lock, or we scribbled (too bad)
|
|
return;
|
|
}
|
|
if (_writer != holder) {
|
|
return; // already unlocked, perhaps via break_tty_lock_for_safepoint
|
|
}
|
|
_writer = NO_WRITER;
|
|
tty_lock->unlock();
|
|
}
|
|
|
|
|
|
// Yuck: jio_print does not accept char*/len.
|
|
static void call_jio_print(const char* s, size_t len) {
|
|
char buffer[O_BUFLEN+100];
|
|
if (len > sizeof(buffer)-1) {
|
|
warning("increase O_BUFLEN in ostream.cpp -- output truncated");
|
|
len = sizeof(buffer)-1;
|
|
}
|
|
strncpy(buffer, s, len);
|
|
buffer[len] = '\0';
|
|
jio_print(buffer);
|
|
}
|
|
|
|
|
|
void defaultStream::write(const char* s, size_t len) {
|
|
intx thread_id = os::current_thread_id();
|
|
intx holder = hold(thread_id);
|
|
|
|
if (DisplayVMOutput &&
|
|
(_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) {
|
|
// print to output stream. It can be redirected by a vfprintf hook
|
|
if (s[len] == '\0') {
|
|
jio_print(s);
|
|
} else {
|
|
call_jio_print(s, len);
|
|
}
|
|
}
|
|
|
|
// print to log file
|
|
if (has_log_file()) {
|
|
int nl0 = _newlines;
|
|
xmlTextStream::write(s, len);
|
|
// flush the log file too, if there were any newlines
|
|
if (nl0 != _newlines){
|
|
flush();
|
|
}
|
|
} else {
|
|
update_position(s, len);
|
|
}
|
|
|
|
release(holder);
|
|
}
|
|
|
|
intx ttyLocker::hold_tty() {
|
|
if (defaultStream::instance == NULL) return defaultStream::NO_WRITER;
|
|
intx thread_id = os::current_thread_id();
|
|
return defaultStream::instance->hold(thread_id);
|
|
}
|
|
|
|
void ttyLocker::release_tty(intx holder) {
|
|
if (holder == defaultStream::NO_WRITER) return;
|
|
defaultStream::instance->release(holder);
|
|
}
|
|
|
|
bool ttyLocker::release_tty_if_locked() {
|
|
intx thread_id = os::current_thread_id();
|
|
if (defaultStream::instance->writer() == thread_id) {
|
|
// release the lock and return true so callers know if was
|
|
// previously held.
|
|
release_tty(thread_id);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ttyLocker::break_tty_lock_for_safepoint(intx holder) {
|
|
if (defaultStream::instance != NULL &&
|
|
defaultStream::instance->writer() == holder) {
|
|
if (xtty != NULL) {
|
|
xtty->print_cr("<!-- safepoint while printing -->");
|
|
}
|
|
defaultStream::instance->release(holder);
|
|
}
|
|
// (else there was no lock to break)
|
|
}
|
|
|
|
void ostream_init() {
|
|
if (defaultStream::instance == NULL) {
|
|
defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream();
|
|
tty = defaultStream::instance;
|
|
|
|
// We want to ensure that time stamps in GC logs consider time 0
|
|
// the time when the JVM is initialized, not the first time we ask
|
|
// for a time stamp. So, here, we explicitly update the time stamp
|
|
// of tty.
|
|
tty->time_stamp().update_to(1);
|
|
}
|
|
}
|
|
|
|
void ostream_init_log() {
|
|
// For -Xloggc:<file> option - called in runtime/thread.cpp
|
|
// Note : this must be called AFTER ostream_init()
|
|
|
|
gclog_or_tty = tty; // default to tty
|
|
if (Arguments::gc_log_filename() != NULL) {
|
|
fileStream * gclog = new(ResourceObj::C_HEAP, mtInternal)
|
|
gcLogFileStream(Arguments::gc_log_filename());
|
|
if (gclog->is_open()) {
|
|
// now we update the time stamp of the GC log to be synced up
|
|
// with tty.
|
|
gclog->time_stamp().update_to(tty->time_stamp().ticks());
|
|
}
|
|
gclog_or_tty = gclog;
|
|
}
|
|
|
|
#if INCLUDE_CDS
|
|
// For -XX:DumpLoadedClassList=<file> option
|
|
if (DumpLoadedClassList != NULL) {
|
|
const char* list_name = make_log_name(DumpLoadedClassList, NULL);
|
|
classlist_file = new(ResourceObj::C_HEAP, mtInternal)
|
|
fileStream(list_name);
|
|
FREE_C_HEAP_ARRAY(char, list_name);
|
|
}
|
|
#endif
|
|
|
|
// If we haven't lazily initialized the logfile yet, do it now,
|
|
// to avoid the possibility of lazy initialization during a VM
|
|
// crash, which can affect the stability of the fatal error handler.
|
|
defaultStream::instance->has_log_file();
|
|
}
|
|
|
|
// ostream_exit() is called during normal VM exit to finish log files, flush
|
|
// output and free resource.
|
|
void ostream_exit() {
|
|
static bool ostream_exit_called = false;
|
|
if (ostream_exit_called) return;
|
|
ostream_exit_called = true;
|
|
#if INCLUDE_CDS
|
|
if (classlist_file != NULL) {
|
|
delete classlist_file;
|
|
}
|
|
#endif
|
|
if (gclog_or_tty != tty) {
|
|
delete gclog_or_tty;
|
|
}
|
|
{
|
|
// we temporaly disable PrintMallocFree here
|
|
// as otherwise it'll lead to using of almost deleted
|
|
// tty or defaultStream::instance in logging facility
|
|
// of HeapFree(), see 6391258
|
|
DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);)
|
|
if (tty != defaultStream::instance) {
|
|
delete tty;
|
|
}
|
|
if (defaultStream::instance != NULL) {
|
|
delete defaultStream::instance;
|
|
}
|
|
}
|
|
tty = NULL;
|
|
xtty = NULL;
|
|
gclog_or_tty = NULL;
|
|
defaultStream::instance = NULL;
|
|
}
|
|
|
|
// ostream_abort() is called by os::abort() when VM is about to die.
|
|
void ostream_abort() {
|
|
// Here we can't delete gclog_or_tty and tty, just flush their output
|
|
if (gclog_or_tty) gclog_or_tty->flush();
|
|
if (tty) tty->flush();
|
|
|
|
if (defaultStream::instance != NULL) {
|
|
static char buf[4096];
|
|
defaultStream::instance->finish_log_on_error(buf, sizeof(buf));
|
|
}
|
|
}
|
|
|
|
staticBufferStream::staticBufferStream(char* buffer, size_t buflen,
|
|
outputStream *outer_stream) {
|
|
_buffer = buffer;
|
|
_buflen = buflen;
|
|
_outer_stream = outer_stream;
|
|
// compile task prints time stamp relative to VM start
|
|
_stamp.update_to(1);
|
|
}
|
|
|
|
void staticBufferStream::write(const char* c, size_t len) {
|
|
_outer_stream->print_raw(c, (int)len);
|
|
}
|
|
|
|
void staticBufferStream::flush() {
|
|
_outer_stream->flush();
|
|
}
|
|
|
|
void staticBufferStream::print(const char* format, ...) {
|
|
va_list ap;
|
|
va_start(ap, format);
|
|
size_t len;
|
|
const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len);
|
|
write(str, len);
|
|
va_end(ap);
|
|
}
|
|
|
|
void staticBufferStream::print_cr(const char* format, ...) {
|
|
va_list ap;
|
|
va_start(ap, format);
|
|
size_t len;
|
|
const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len);
|
|
write(str, len);
|
|
va_end(ap);
|
|
}
|
|
|
|
void staticBufferStream::vprint(const char *format, va_list argptr) {
|
|
size_t len;
|
|
const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len);
|
|
write(str, len);
|
|
}
|
|
|
|
void staticBufferStream::vprint_cr(const char* format, va_list argptr) {
|
|
size_t len;
|
|
const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len);
|
|
write(str, len);
|
|
}
|
|
|
|
bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() {
|
|
buffer_length = initial_size;
|
|
buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal);
|
|
buffer_pos = 0;
|
|
buffer_fixed = false;
|
|
buffer_max = bufmax;
|
|
}
|
|
|
|
bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() {
|
|
buffer_length = fixed_buffer_size;
|
|
buffer = fixed_buffer;
|
|
buffer_pos = 0;
|
|
buffer_fixed = true;
|
|
buffer_max = bufmax;
|
|
}
|
|
|
|
void bufferedStream::write(const char* s, size_t len) {
|
|
|
|
if(buffer_pos + len > buffer_max) {
|
|
flush();
|
|
}
|
|
|
|
size_t end = buffer_pos + len;
|
|
if (end >= buffer_length) {
|
|
if (buffer_fixed) {
|
|
// if buffer cannot resize, silently truncate
|
|
len = buffer_length - buffer_pos - 1;
|
|
} else {
|
|
// For small overruns, double the buffer. For larger ones,
|
|
// increase to the requested size.
|
|
if (end < buffer_length * 2) {
|
|
end = buffer_length * 2;
|
|
}
|
|
buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal);
|
|
buffer_length = end;
|
|
}
|
|
}
|
|
memcpy(buffer + buffer_pos, s, len);
|
|
buffer_pos += len;
|
|
update_position(s, len);
|
|
}
|
|
|
|
char* bufferedStream::as_string() {
|
|
char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
|
|
strncpy(copy, buffer, buffer_pos);
|
|
copy[buffer_pos] = 0; // terminating null
|
|
return copy;
|
|
}
|
|
|
|
bufferedStream::~bufferedStream() {
|
|
if (!buffer_fixed) {
|
|
FREE_C_HEAP_ARRAY(char, buffer);
|
|
}
|
|
}
|
|
|
|
#ifndef PRODUCT
|
|
|
|
#if defined(SOLARIS) || defined(LINUX) || defined(AIX) || defined(_ALLBSD_SOURCE)
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#endif
|
|
|
|
// Network access
|
|
networkStream::networkStream() : bufferedStream(1024*10, 1024*10) {
|
|
|
|
_socket = -1;
|
|
|
|
int result = os::socket(AF_INET, SOCK_STREAM, 0);
|
|
if (result <= 0) {
|
|
assert(false, "Socket could not be created!");
|
|
} else {
|
|
_socket = result;
|
|
}
|
|
}
|
|
|
|
int networkStream::read(char *buf, size_t len) {
|
|
return os::recv(_socket, buf, (int)len, 0);
|
|
}
|
|
|
|
void networkStream::flush() {
|
|
if (size() != 0) {
|
|
int result = os::raw_send(_socket, (char *)base(), size(), 0);
|
|
assert(result != -1, "connection error");
|
|
assert(result == (int)size(), "didn't send enough data");
|
|
}
|
|
reset();
|
|
}
|
|
|
|
networkStream::~networkStream() {
|
|
close();
|
|
}
|
|
|
|
void networkStream::close() {
|
|
if (_socket != -1) {
|
|
flush();
|
|
os::socket_close(_socket);
|
|
_socket = -1;
|
|
}
|
|
}
|
|
|
|
bool networkStream::connect(const char *ip, short port) {
|
|
|
|
struct sockaddr_in server;
|
|
server.sin_family = AF_INET;
|
|
server.sin_port = htons(port);
|
|
|
|
server.sin_addr.s_addr = inet_addr(ip);
|
|
if (server.sin_addr.s_addr == (uint32_t)-1) {
|
|
struct hostent* host = os::get_host_by_name((char*)ip);
|
|
if (host != NULL) {
|
|
memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in));
|
|
return (result >= 0);
|
|
}
|
|
|
|
#endif
|