duke@435: /*
xdono@1014: * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435: *
duke@435: * This code is free software; you can redistribute it and/or modify it
duke@435: * under the terms of the GNU General Public License version 2 only, as
duke@435: * published by the Free Software Foundation.
duke@435: *
duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435: * version 2 for more details (a copy is included in the LICENSE file that
duke@435: * accompanied this code).
duke@435: *
duke@435: * You should have received a copy of the GNU General Public License version
duke@435: * 2 along with this work; if not, write to the Free Software Foundation,
duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435: *
duke@435: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435: * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435: * have any questions.
duke@435: *
duke@435: */
duke@435:
duke@435: # include "incls/_precompiled.incl"
duke@435: # include "incls/_ostream.cpp.incl"
duke@435:
duke@435: extern "C" void jio_print(const char* s); // Declarationtion of jvm method
duke@435:
duke@435: outputStream::outputStream(int width) {
duke@435: _width = width;
duke@435: _position = 0;
duke@435: _newlines = 0;
duke@435: _precount = 0;
duke@435: _indentation = 0;
duke@435: }
duke@435:
duke@435: outputStream::outputStream(int width, bool has_time_stamps) {
duke@435: _width = width;
duke@435: _position = 0;
duke@435: _newlines = 0;
duke@435: _precount = 0;
duke@435: _indentation = 0;
duke@435: if (has_time_stamps) _stamp.update();
duke@435: }
duke@435:
duke@435: void outputStream::update_position(const char* s, size_t len) {
duke@435: for (size_t i = 0; i < len; i++) {
duke@435: char ch = s[i];
duke@435: if (ch == '\n') {
duke@435: _newlines += 1;
duke@435: _precount += _position + 1;
duke@435: _position = 0;
duke@435: } else if (ch == '\t') {
jrose@535: int tw = 8 - (_position & 7);
jrose@535: _position += tw;
jrose@535: _precount -= tw-1; // invariant: _precount + _position == total count
duke@435: } else {
duke@435: _position += 1;
duke@435: }
duke@435: }
duke@435: }
duke@435:
duke@435: // Execute a vsprintf, using the given buffer if necessary.
duke@435: // Return a pointer to the formatted string.
duke@435: const char* outputStream::do_vsnprintf(char* buffer, size_t buflen,
duke@435: const char* format, va_list ap,
duke@435: bool add_cr,
duke@435: size_t& result_len) {
duke@435: const char* result;
duke@435: if (add_cr) buflen--;
duke@435: if (!strchr(format, '%')) {
duke@435: // constant format string
duke@435: result = format;
duke@435: result_len = strlen(result);
duke@435: if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
duke@435: } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') {
duke@435: // trivial copy-through format string
duke@435: result = va_arg(ap, const char*);
duke@435: result_len = strlen(result);
duke@435: if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
duke@435: } else if (vsnprintf(buffer, buflen, format, ap) >= 0) {
duke@435: result = buffer;
duke@435: result_len = strlen(result);
duke@435: } else {
duke@435: DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");)
duke@435: result = buffer;
duke@435: result_len = buflen - 1;
duke@435: buffer[result_len] = 0;
duke@435: }
duke@435: if (add_cr) {
duke@435: if (result != buffer) {
duke@435: strncpy(buffer, result, buflen);
duke@435: result = buffer;
duke@435: }
duke@435: buffer[result_len++] = '\n';
duke@435: buffer[result_len] = 0;
duke@435: }
duke@435: return result;
duke@435: }
duke@435:
duke@435: void outputStream::print(const char* format, ...) {
duke@435: char buffer[O_BUFLEN];
duke@435: va_list ap;
duke@435: va_start(ap, format);
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len);
duke@435: write(str, len);
duke@435: va_end(ap);
duke@435: }
duke@435:
duke@435: void outputStream::print_cr(const char* format, ...) {
duke@435: char buffer[O_BUFLEN];
duke@435: va_list ap;
duke@435: va_start(ap, format);
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len);
duke@435: write(str, len);
duke@435: va_end(ap);
duke@435: }
duke@435:
duke@435: void outputStream::vprint(const char *format, va_list argptr) {
duke@435: char buffer[O_BUFLEN];
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len);
duke@435: write(str, len);
duke@435: }
duke@435:
duke@435: void outputStream::vprint_cr(const char* format, va_list argptr) {
duke@435: char buffer[O_BUFLEN];
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
duke@435: write(str, len);
duke@435: }
duke@435:
duke@435: void outputStream::fill_to(int col) {
jrose@535: int need_fill = col - position();
jrose@535: sp(need_fill);
jrose@535: }
jrose@535:
jrose@535: void outputStream::move_to(int col, int slop, int min_space) {
jrose@535: if (position() >= col + slop)
jrose@535: cr();
jrose@535: int need_fill = col - position();
jrose@535: if (need_fill < min_space)
jrose@535: need_fill = min_space;
jrose@535: sp(need_fill);
duke@435: }
duke@435:
duke@435: void outputStream::put(char ch) {
duke@435: assert(ch != 0, "please fix call site");
duke@435: char buf[] = { ch, '\0' };
duke@435: write(buf, 1);
duke@435: }
duke@435:
jrose@535: #define SP_USE_TABS false
jrose@535:
jrose@535: void outputStream::sp(int count) {
jrose@535: if (count < 0) return;
jrose@535: if (SP_USE_TABS && count >= 8) {
jrose@535: int target = position() + count;
jrose@535: while (count >= 8) {
jrose@535: this->write("\t", 1);
jrose@535: count -= 8;
jrose@535: }
jrose@535: count = target - position();
jrose@535: }
jrose@535: while (count > 0) {
jrose@535: int nw = (count > 8) ? 8 : count;
jrose@535: this->write(" ", nw);
jrose@535: count -= nw;
jrose@535: }
duke@435: }
duke@435:
duke@435: void outputStream::cr() {
duke@435: this->write("\n", 1);
duke@435: }
duke@435:
duke@435: void outputStream::stamp() {
duke@435: if (! _stamp.is_updated()) {
duke@435: _stamp.update(); // start at 0 on first call to stamp()
duke@435: }
duke@435:
duke@435: // outputStream::stamp() may get called by ostream_abort(), use snprintf
duke@435: // to avoid allocating large stack buffer in print().
duke@435: char buf[40];
duke@435: jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds());
duke@435: print_raw(buf);
duke@435: }
duke@435:
ysr@777: void outputStream::stamp(bool guard,
ysr@777: const char* prefix,
ysr@777: const char* suffix) {
ysr@777: if (!guard) {
ysr@777: return;
ysr@777: }
ysr@777: print_raw(prefix);
ysr@777: stamp();
ysr@777: print_raw(suffix);
ysr@777: }
ysr@777:
duke@435: void outputStream::date_stamp(bool guard,
duke@435: const char* prefix,
duke@435: const char* suffix) {
duke@435: if (!guard) {
duke@435: return;
duke@435: }
duke@435: print_raw(prefix);
duke@435: static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz";
duke@435: static const int buffer_length = 32;
duke@435: char buffer[buffer_length];
duke@435: const char* iso8601_result = os::iso8601_time(buffer, buffer_length);
duke@435: if (iso8601_result != NULL) {
duke@435: print_raw(buffer);
duke@435: } else {
duke@435: print_raw(error_time);
duke@435: }
duke@435: print_raw(suffix);
duke@435: return;
duke@435: }
duke@435:
duke@435: void outputStream::indent() {
duke@435: while (_position < _indentation) sp();
duke@435: }
duke@435:
duke@435: void outputStream::print_jlong(jlong value) {
duke@435: // N.B. Same as INT64_FORMAT
duke@435: print(os::jlong_format_specifier(), value);
duke@435: }
duke@435:
duke@435: void outputStream::print_julong(julong value) {
duke@435: // N.B. Same as UINT64_FORMAT
duke@435: print(os::julong_format_specifier(), value);
duke@435: }
duke@435:
duke@435: stringStream::stringStream(size_t initial_size) : outputStream() {
duke@435: buffer_length = initial_size;
duke@435: buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
duke@435: buffer_pos = 0;
duke@435: buffer_fixed = false;
duke@435: }
duke@435:
duke@435: // useful for output to fixed chunks of memory, such as performance counters
duke@435: stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
duke@435: buffer_length = fixed_buffer_size;
duke@435: buffer = fixed_buffer;
duke@435: buffer_pos = 0;
duke@435: buffer_fixed = true;
duke@435: }
duke@435:
duke@435: void stringStream::write(const char* s, size_t len) {
duke@435: size_t write_len = len; // number of non-null bytes to write
duke@435: size_t end = buffer_pos + len + 1; // position after write and final '\0'
duke@435: if (end > buffer_length) {
duke@435: if (buffer_fixed) {
duke@435: // if buffer cannot resize, silently truncate
duke@435: end = buffer_length;
duke@435: write_len = end - buffer_pos - 1; // leave room for the final '\0'
duke@435: } else {
duke@435: // For small overruns, double the buffer. For larger ones,
duke@435: // increase to the requested size.
duke@435: if (end < buffer_length * 2) {
duke@435: end = buffer_length * 2;
duke@435: }
duke@435: char* oldbuf = buffer;
duke@435: buffer = NEW_RESOURCE_ARRAY(char, end);
duke@435: strncpy(buffer, oldbuf, buffer_pos);
duke@435: buffer_length = end;
duke@435: }
duke@435: }
duke@435: // invariant: buffer is always null-terminated
duke@435: guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob");
duke@435: buffer[buffer_pos + write_len] = 0;
duke@435: strncpy(buffer + buffer_pos, s, write_len);
duke@435: buffer_pos += write_len;
duke@435:
duke@435: // Note that the following does not depend on write_len.
duke@435: // This means that position and count get updated
duke@435: // even when overflow occurs.
duke@435: update_position(s, len);
duke@435: }
duke@435:
duke@435: char* stringStream::as_string() {
duke@435: char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
duke@435: strncpy(copy, buffer, buffer_pos);
duke@435: copy[buffer_pos] = 0; // terminating null
duke@435: return copy;
duke@435: }
duke@435:
duke@435: stringStream::~stringStream() {}
duke@435:
duke@435: xmlStream* xtty;
duke@435: outputStream* tty;
duke@435: outputStream* gclog_or_tty;
duke@435: extern Mutex* tty_lock;
duke@435:
duke@435: fileStream::fileStream(const char* file_name) {
duke@435: _file = fopen(file_name, "w");
duke@435: _need_close = true;
duke@435: }
duke@435:
duke@435: void fileStream::write(const char* s, size_t len) {
xlu@948: if (_file != NULL) {
xlu@948: // Make an unused local variable to avoid warning from gcc 4.x compiler.
xlu@948: size_t count = fwrite(s, 1, len, _file);
xlu@948: }
duke@435: update_position(s, len);
duke@435: }
duke@435:
duke@435: fileStream::~fileStream() {
duke@435: if (_file != NULL) {
duke@435: if (_need_close) fclose(_file);
duke@435: _file = NULL;
duke@435: }
duke@435: }
duke@435:
duke@435: void fileStream::flush() {
duke@435: fflush(_file);
duke@435: }
duke@435:
duke@435: fdStream::fdStream(const char* file_name) {
duke@435: _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
duke@435: _need_close = true;
duke@435: }
duke@435:
duke@435: fdStream::~fdStream() {
duke@435: if (_fd != -1) {
duke@435: if (_need_close) close(_fd);
duke@435: _fd = -1;
duke@435: }
duke@435: }
duke@435:
duke@435: void fdStream::write(const char* s, size_t len) {
xlu@948: if (_fd != -1) {
xlu@948: // Make an unused local variable to avoid warning from gcc 4.x compiler.
xlu@948: size_t count = ::write(_fd, s, (int)len);
xlu@948: }
duke@435: update_position(s, len);
duke@435: }
duke@435:
duke@435: defaultStream* defaultStream::instance = NULL;
duke@435: int defaultStream::_output_fd = 1;
duke@435: int defaultStream::_error_fd = 2;
duke@435: FILE* defaultStream::_output_stream = stdout;
duke@435: FILE* defaultStream::_error_stream = stderr;
duke@435:
duke@435: #define LOG_MAJOR_VERSION 160
duke@435: #define LOG_MINOR_VERSION 1
duke@435:
duke@435: void defaultStream::init() {
duke@435: _inited = true;
duke@435: if (LogVMOutput || LogCompilation) {
duke@435: init_log();
duke@435: }
duke@435: }
duke@435:
duke@435: bool defaultStream::has_log_file() {
duke@435: // lazily create log file (at startup, LogVMOutput is false even
duke@435: // if +LogVMOutput is used, because the flags haven't been parsed yet)
duke@435: // For safer printing during fatal error handling, do not init logfile
duke@435: // if a VM error has been reported.
duke@435: if (!_inited && !is_error_reported()) init();
duke@435: return _log_file != NULL;
duke@435: }
duke@435:
coleenp@1788: static const char* make_log_name(const char* log_name, const char* force_directory) {
duke@435: const char* basename = log_name;
duke@435: char file_sep = os::file_separator()[0];
duke@435: const char* cp;
duke@435: for (cp = log_name; *cp != '\0'; cp++) {
duke@435: if (*cp == '/' || *cp == file_sep) {
duke@435: basename = cp+1;
duke@435: }
duke@435: }
duke@435: const char* nametail = log_name;
duke@435:
coleenp@1788: // Compute buffer length
coleenp@1788: size_t buffer_length;
coleenp@1788: if (force_directory != NULL) {
coleenp@1788: buffer_length = strlen(force_directory) + strlen(os::file_separator()) +
coleenp@1788: strlen(basename) + 1;
coleenp@1788: } else {
coleenp@1788: buffer_length = strlen(log_name) + 1;
coleenp@1788: }
coleenp@1788:
coleenp@1788: const char* star = strchr(basename, '*');
coleenp@1788: int star_pos = (star == NULL) ? -1 : (star - nametail);
coleenp@1788:
coleenp@1788: char pid[32];
coleenp@1788: if (star_pos >= 0) {
coleenp@1788: jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id());
coleenp@1788: buffer_length += strlen(pid);
coleenp@1788: }
coleenp@1788:
coleenp@1788: // Create big enough buffer.
coleenp@1788: char *buf = NEW_C_HEAP_ARRAY(char, buffer_length);
coleenp@1788:
duke@435: strcpy(buf, "");
duke@435: if (force_directory != NULL) {
duke@435: strcat(buf, force_directory);
duke@435: strcat(buf, os::file_separator());
duke@435: nametail = basename; // completely skip directory prefix
duke@435: }
duke@435:
duke@435: if (star_pos >= 0) {
duke@435: // convert foo*bar.log to foo123bar.log
duke@435: int buf_pos = (int) strlen(buf);
duke@435: strncpy(&buf[buf_pos], nametail, star_pos);
coleenp@1788: strcpy(&buf[buf_pos + star_pos], pid);
duke@435: nametail += star_pos + 1; // skip prefix and star
duke@435: }
duke@435:
duke@435: strcat(buf, nametail); // append rest of name, or all of name
duke@435: return buf;
duke@435: }
duke@435:
duke@435: void defaultStream::init_log() {
duke@435: // %%% Need a MutexLocker?
duke@435: const char* log_name = LogFile != NULL ? LogFile : "hotspot.log";
coleenp@1788: const char* try_name = make_log_name(log_name, NULL);
duke@435: fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name);
duke@435: if (!file->is_open()) {
duke@435: // Try again to open the file.
duke@435: char warnbuf[O_BUFLEN*2];
coleenp@1788: jio_snprintf(warnbuf, sizeof(warnbuf),
coleenp@1788: "Warning: Cannot open log file: %s\n", try_name);
duke@435: // Note: This feature is for maintainer use only. No need for L10N.
duke@435: jio_print(warnbuf);
coleenp@1788: FREE_C_HEAP_ARRAY(char, try_name);
coleenp@1788: try_name = make_log_name("hs_pid*.log", os::get_temp_directory());
coleenp@1788: jio_snprintf(warnbuf, sizeof(warnbuf),
coleenp@1788: "Warning: Forcing option -XX:LogFile=%s\n", try_name);
duke@435: jio_print(warnbuf);
duke@435: delete file;
duke@435: file = new(ResourceObj::C_HEAP) fileStream(try_name);
coleenp@1788: FREE_C_HEAP_ARRAY(char, try_name);
duke@435: }
duke@435: if (file->is_open()) {
duke@435: _log_file = file;
duke@435: xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file);
duke@435: _outer_xmlStream = xs;
duke@435: if (this == tty) xtty = xs;
duke@435: // Write XML header.
duke@435: xs->print_cr("");
duke@435: // (For now, don't bother to issue a DTD for this private format.)
duke@435: jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds();
duke@435: // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if
duke@435: // we ever get round to introduce that method on the os class
duke@435: xs->head("hotspot_log version='%d %d'"
duke@435: " process='%d' time_ms='"INT64_FORMAT"'",
duke@435: LOG_MAJOR_VERSION, LOG_MINOR_VERSION,
duke@435: os::current_process_id(), time_ms);
duke@435: // Write VM version header immediately.
duke@435: xs->head("vm_version");
duke@435: xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr();
duke@435: xs->tail("name");
duke@435: xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr();
duke@435: xs->tail("release");
duke@435: xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr();
duke@435: xs->tail("info");
duke@435: xs->tail("vm_version");
duke@435: // Record information about the command-line invocation.
duke@435: xs->head("vm_arguments"); // Cf. Arguments::print_on()
duke@435: if (Arguments::num_jvm_flags() > 0) {
duke@435: xs->head("flags");
duke@435: Arguments::print_jvm_flags_on(xs->text());
duke@435: xs->tail("flags");
duke@435: }
duke@435: if (Arguments::num_jvm_args() > 0) {
duke@435: xs->head("args");
duke@435: Arguments::print_jvm_args_on(xs->text());
duke@435: xs->tail("args");
duke@435: }
duke@435: if (Arguments::java_command() != NULL) {
duke@435: xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command());
duke@435: xs->tail("command");
duke@435: }
duke@435: if (Arguments::sun_java_launcher() != NULL) {
duke@435: xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher());
duke@435: xs->tail("launcher");
duke@435: }
duke@435: if (Arguments::system_properties() != NULL) {
duke@435: xs->head("properties");
duke@435: // Print it as a java-style property list.
duke@435: // System properties don't generally contain newlines, so don't bother with unparsing.
duke@435: for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
duke@435: xs->text()->print_cr("%s=%s", p->key(), p->value());
duke@435: }
duke@435: xs->tail("properties");
duke@435: }
duke@435: xs->tail("vm_arguments");
duke@435: // tty output per se is grouped under the ... element.
duke@435: xs->head("tty");
duke@435: // All further non-markup text gets copied to the tty:
duke@435: xs->_text = this; // requires friend declaration!
duke@435: } else {
duke@435: delete(file);
duke@435: // and leave xtty as NULL
duke@435: LogVMOutput = false;
duke@435: DisplayVMOutput = true;
duke@435: LogCompilation = false;
duke@435: }
duke@435: }
duke@435:
duke@435: // finish_log() is called during normal VM shutdown. finish_log_on_error() is
duke@435: // called by ostream_abort() after a fatal error.
duke@435: //
duke@435: void defaultStream::finish_log() {
duke@435: xmlStream* xs = _outer_xmlStream;
duke@435: xs->done("tty");
duke@435:
duke@435: // Other log forks are appended here, at the End of Time:
duke@435: CompileLog::finish_log(xs->out()); // write compile logging, if any, now
duke@435:
duke@435: xs->done("hotspot_log");
duke@435: xs->flush();
duke@435:
duke@435: fileStream* file = _log_file;
duke@435: _log_file = NULL;
duke@435:
duke@435: delete _outer_xmlStream;
duke@435: _outer_xmlStream = NULL;
duke@435:
duke@435: file->flush();
duke@435: delete file;
duke@435: }
duke@435:
duke@435: void defaultStream::finish_log_on_error(char *buf, int buflen) {
duke@435: xmlStream* xs = _outer_xmlStream;
duke@435:
duke@435: if (xs && xs->out()) {
duke@435:
duke@435: xs->done_raw("tty");
duke@435:
duke@435: // Other log forks are appended here, at the End of Time:
duke@435: CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now
duke@435:
duke@435: xs->done_raw("hotspot_log");
duke@435: xs->flush();
duke@435:
duke@435: fileStream* file = _log_file;
duke@435: _log_file = NULL;
duke@435: _outer_xmlStream = NULL;
duke@435:
duke@435: if (file) {
duke@435: file->flush();
duke@435:
duke@435: // Can't delete or close the file because delete and fclose aren't
duke@435: // async-safe. We are about to die, so leave it to the kernel.
duke@435: // delete file;
duke@435: }
duke@435: }
duke@435: }
duke@435:
duke@435: intx defaultStream::hold(intx writer_id) {
duke@435: bool has_log = has_log_file(); // check before locking
duke@435: if (// impossible, but who knows?
duke@435: writer_id == NO_WRITER ||
duke@435:
duke@435: // bootstrap problem
duke@435: tty_lock == NULL ||
duke@435:
duke@435: // can't grab a lock or call Thread::current() if TLS isn't initialized
duke@435: ThreadLocalStorage::thread() == NULL ||
duke@435:
duke@435: // developer hook
duke@435: !SerializeVMOutput ||
duke@435:
duke@435: // VM already unhealthy
duke@435: is_error_reported() ||
duke@435:
duke@435: // safepoint == global lock (for VM only)
duke@435: (SafepointSynchronize::is_synchronizing() &&
duke@435: Thread::current()->is_VM_thread())
duke@435: ) {
duke@435: // do not attempt to lock unless we know the thread and the VM is healthy
duke@435: return NO_WRITER;
duke@435: }
duke@435: if (_writer == writer_id) {
duke@435: // already held, no need to re-grab the lock
duke@435: return NO_WRITER;
duke@435: }
duke@435: tty_lock->lock_without_safepoint_check();
duke@435: // got the lock
duke@435: if (writer_id != _last_writer) {
duke@435: if (has_log) {
duke@435: _log_file->bol();
duke@435: // output a hint where this output is coming from:
duke@435: _log_file->print_cr("", writer_id);
duke@435: }
duke@435: _last_writer = writer_id;
duke@435: }
duke@435: _writer = writer_id;
duke@435: return writer_id;
duke@435: }
duke@435:
duke@435: void defaultStream::release(intx holder) {
duke@435: if (holder == NO_WRITER) {
duke@435: // nothing to release: either a recursive lock, or we scribbled (too bad)
duke@435: return;
duke@435: }
duke@435: if (_writer != holder) {
duke@435: return; // already unlocked, perhaps via break_tty_lock_for_safepoint
duke@435: }
duke@435: _writer = NO_WRITER;
duke@435: tty_lock->unlock();
duke@435: }
duke@435:
duke@435:
duke@435: // Yuck: jio_print does not accept char*/len.
duke@435: static void call_jio_print(const char* s, size_t len) {
duke@435: char buffer[O_BUFLEN+100];
duke@435: if (len > sizeof(buffer)-1) {
duke@435: warning("increase O_BUFLEN in ostream.cpp -- output truncated");
duke@435: len = sizeof(buffer)-1;
duke@435: }
duke@435: strncpy(buffer, s, len);
duke@435: buffer[len] = '\0';
duke@435: jio_print(buffer);
duke@435: }
duke@435:
duke@435:
duke@435: void defaultStream::write(const char* s, size_t len) {
duke@435: intx thread_id = os::current_thread_id();
duke@435: intx holder = hold(thread_id);
duke@435:
duke@435: if (DisplayVMOutput &&
duke@435: (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) {
duke@435: // print to output stream. It can be redirected by a vfprintf hook
duke@435: if (s[len] == '\0') {
duke@435: jio_print(s);
duke@435: } else {
duke@435: call_jio_print(s, len);
duke@435: }
duke@435: }
duke@435:
duke@435: // print to log file
duke@435: if (has_log_file()) {
duke@435: int nl0 = _newlines;
duke@435: xmlTextStream::write(s, len);
duke@435: // flush the log file too, if there were any newlines
duke@435: if (nl0 != _newlines){
duke@435: flush();
duke@435: }
duke@435: } else {
duke@435: update_position(s, len);
duke@435: }
duke@435:
duke@435: release(holder);
duke@435: }
duke@435:
duke@435: intx ttyLocker::hold_tty() {
duke@435: if (defaultStream::instance == NULL) return defaultStream::NO_WRITER;
duke@435: intx thread_id = os::current_thread_id();
duke@435: return defaultStream::instance->hold(thread_id);
duke@435: }
duke@435:
duke@435: void ttyLocker::release_tty(intx holder) {
duke@435: if (holder == defaultStream::NO_WRITER) return;
duke@435: defaultStream::instance->release(holder);
duke@435: }
duke@435:
duke@435: void ttyLocker::break_tty_lock_for_safepoint(intx holder) {
duke@435: if (defaultStream::instance != NULL &&
duke@435: defaultStream::instance->writer() == holder) {
duke@435: if (xtty != NULL) {
duke@435: xtty->print_cr("");
duke@435: }
duke@435: defaultStream::instance->release(holder);
duke@435: }
duke@435: // (else there was no lock to break)
duke@435: }
duke@435:
duke@435: void ostream_init() {
duke@435: if (defaultStream::instance == NULL) {
duke@435: defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream();
duke@435: tty = defaultStream::instance;
duke@435:
duke@435: // We want to ensure that time stamps in GC logs consider time 0
duke@435: // the time when the JVM is initialized, not the first time we ask
duke@435: // for a time stamp. So, here, we explicitly update the time stamp
duke@435: // of tty.
duke@435: tty->time_stamp().update_to(1);
duke@435: }
duke@435: }
duke@435:
duke@435: void ostream_init_log() {
duke@435: // For -Xloggc: option - called in runtime/thread.cpp
duke@435: // Note : this must be called AFTER ostream_init()
duke@435:
duke@435: gclog_or_tty = tty; // default to tty
duke@435: if (Arguments::gc_log_filename() != NULL) {
duke@435: fileStream * gclog = new(ResourceObj::C_HEAP)
duke@435: fileStream(Arguments::gc_log_filename());
duke@435: if (gclog->is_open()) {
duke@435: // now we update the time stamp of the GC log to be synced up
duke@435: // with tty.
duke@435: gclog->time_stamp().update_to(tty->time_stamp().ticks());
duke@435: gclog_or_tty = gclog;
duke@435: }
duke@435: }
duke@435:
duke@435: // If we haven't lazily initialized the logfile yet, do it now,
duke@435: // to avoid the possibility of lazy initialization during a VM
duke@435: // crash, which can affect the stability of the fatal error handler.
duke@435: defaultStream::instance->has_log_file();
duke@435: }
duke@435:
duke@435: // ostream_exit() is called during normal VM exit to finish log files, flush
duke@435: // output and free resource.
duke@435: void ostream_exit() {
duke@435: static bool ostream_exit_called = false;
duke@435: if (ostream_exit_called) return;
duke@435: ostream_exit_called = true;
duke@435: if (gclog_or_tty != tty) {
duke@435: delete gclog_or_tty;
duke@435: }
duke@435: {
duke@435: // we temporaly disable PrintMallocFree here
duke@435: // as otherwise it'll lead to using of almost deleted
duke@435: // tty or defaultStream::instance in logging facility
duke@435: // of HeapFree(), see 6391258
duke@435: DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);)
duke@435: if (tty != defaultStream::instance) {
duke@435: delete tty;
duke@435: }
duke@435: if (defaultStream::instance != NULL) {
duke@435: delete defaultStream::instance;
duke@435: }
duke@435: }
duke@435: tty = NULL;
duke@435: xtty = NULL;
duke@435: gclog_or_tty = NULL;
duke@435: defaultStream::instance = NULL;
duke@435: }
duke@435:
duke@435: // ostream_abort() is called by os::abort() when VM is about to die.
duke@435: void ostream_abort() {
duke@435: // Here we can't delete gclog_or_tty and tty, just flush their output
duke@435: if (gclog_or_tty) gclog_or_tty->flush();
duke@435: if (tty) tty->flush();
duke@435:
duke@435: if (defaultStream::instance != NULL) {
duke@435: static char buf[4096];
duke@435: defaultStream::instance->finish_log_on_error(buf, sizeof(buf));
duke@435: }
duke@435: }
duke@435:
duke@435: staticBufferStream::staticBufferStream(char* buffer, size_t buflen,
duke@435: outputStream *outer_stream) {
duke@435: _buffer = buffer;
duke@435: _buflen = buflen;
duke@435: _outer_stream = outer_stream;
duke@435: }
duke@435:
duke@435: void staticBufferStream::write(const char* c, size_t len) {
duke@435: _outer_stream->print_raw(c, (int)len);
duke@435: }
duke@435:
duke@435: void staticBufferStream::flush() {
duke@435: _outer_stream->flush();
duke@435: }
duke@435:
duke@435: void staticBufferStream::print(const char* format, ...) {
duke@435: va_list ap;
duke@435: va_start(ap, format);
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len);
duke@435: write(str, len);
duke@435: va_end(ap);
duke@435: }
duke@435:
duke@435: void staticBufferStream::print_cr(const char* format, ...) {
duke@435: va_list ap;
duke@435: va_start(ap, format);
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len);
duke@435: write(str, len);
duke@435: va_end(ap);
duke@435: }
duke@435:
duke@435: void staticBufferStream::vprint(const char *format, va_list argptr) {
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len);
duke@435: write(str, len);
duke@435: }
duke@435:
duke@435: void staticBufferStream::vprint_cr(const char* format, va_list argptr) {
duke@435: size_t len;
duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len);
duke@435: write(str, len);
duke@435: }
duke@435:
never@657: bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() {
duke@435: buffer_length = initial_size;
duke@435: buffer = NEW_C_HEAP_ARRAY(char, buffer_length);
duke@435: buffer_pos = 0;
duke@435: buffer_fixed = false;
never@657: buffer_max = bufmax;
duke@435: }
duke@435:
never@657: bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() {
duke@435: buffer_length = fixed_buffer_size;
duke@435: buffer = fixed_buffer;
duke@435: buffer_pos = 0;
duke@435: buffer_fixed = true;
never@657: buffer_max = bufmax;
duke@435: }
duke@435:
duke@435: void bufferedStream::write(const char* s, size_t len) {
never@657:
never@657: if(buffer_pos + len > buffer_max) {
never@657: flush();
never@657: }
never@657:
duke@435: size_t end = buffer_pos + len;
duke@435: if (end >= buffer_length) {
duke@435: if (buffer_fixed) {
duke@435: // if buffer cannot resize, silently truncate
duke@435: len = buffer_length - buffer_pos - 1;
duke@435: } else {
duke@435: // For small overruns, double the buffer. For larger ones,
duke@435: // increase to the requested size.
duke@435: if (end < buffer_length * 2) {
duke@435: end = buffer_length * 2;
duke@435: }
duke@435: buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end);
duke@435: buffer_length = end;
duke@435: }
duke@435: }
duke@435: memcpy(buffer + buffer_pos, s, len);
duke@435: buffer_pos += len;
duke@435: update_position(s, len);
duke@435: }
duke@435:
duke@435: char* bufferedStream::as_string() {
duke@435: char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
duke@435: strncpy(copy, buffer, buffer_pos);
duke@435: copy[buffer_pos] = 0; // terminating null
duke@435: return copy;
duke@435: }
duke@435:
duke@435: bufferedStream::~bufferedStream() {
duke@435: if (!buffer_fixed) {
duke@435: FREE_C_HEAP_ARRAY(char, buffer);
duke@435: }
duke@435: }
duke@435:
duke@435: #ifndef PRODUCT
duke@435:
duke@435: #if defined(SOLARIS) || defined(LINUX)
duke@435: #include
duke@435: #include
duke@435: #include
duke@435: #include
duke@435: #endif
duke@435:
duke@435: // Network access
never@657: networkStream::networkStream() : bufferedStream(1024*10, 1024*10) {
duke@435:
duke@435: _socket = -1;
duke@435:
duke@435: hpi::initialize_socket_library();
duke@435:
duke@435: int result = hpi::socket(AF_INET, SOCK_STREAM, 0);
duke@435: if (result <= 0) {
duke@435: assert(false, "Socket could not be created!");
duke@435: } else {
duke@435: _socket = result;
duke@435: }
duke@435: }
duke@435:
duke@435: int networkStream::read(char *buf, size_t len) {
duke@435: return hpi::recv(_socket, buf, (int)len, 0);
duke@435: }
duke@435:
duke@435: void networkStream::flush() {
duke@435: if (size() != 0) {
never@657: int result = hpi::raw_send(_socket, (char *)base(), (int)size(), 0);
never@657: assert(result != -1, "connection error");
never@657: assert(result == (int)size(), "didn't send enough data");
duke@435: }
duke@435: reset();
duke@435: }
duke@435:
duke@435: networkStream::~networkStream() {
duke@435: close();
duke@435: }
duke@435:
duke@435: void networkStream::close() {
duke@435: if (_socket != -1) {
duke@435: flush();
duke@435: hpi::socket_close(_socket);
duke@435: _socket = -1;
duke@435: }
duke@435: }
duke@435:
duke@435: bool networkStream::connect(const char *ip, short port) {
duke@435:
duke@435: struct sockaddr_in server;
duke@435: server.sin_family = AF_INET;
duke@435: server.sin_port = htons(port);
duke@435:
duke@435: server.sin_addr.s_addr = inet_addr(ip);
jcoomes@515: if (server.sin_addr.s_addr == (uint32_t)-1) {
duke@435: #ifdef _WINDOWS
duke@435: struct hostent* host = hpi::get_host_by_name((char*)ip);
duke@435: #else
duke@435: struct hostent* host = gethostbyname(ip);
duke@435: #endif
duke@435: if (host != NULL) {
duke@435: memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length);
duke@435: } else {
duke@435: return false;
duke@435: }
duke@435: }
duke@435:
duke@435:
duke@435: int result = hpi::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in));
duke@435: return (result >= 0);
duke@435: }
duke@435:
duke@435: #endif