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- /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
- #include "precompiled.hpp"
- #include "compiler/compileLog.hpp"
- #include "oops/oop.inline.hpp"
- #include "runtime/arguments.hpp"
- #include "utilities/defaultStream.hpp"
- #include "utilities/ostream.hpp"
- #include "utilities/top.hpp"
- #include "utilities/xmlstream.hpp"
- #ifdef TARGET_OS_FAMILY_linux
- # include "os_linux.inline.hpp"
- #endif
- #ifdef TARGET_OS_FAMILY_solaris
- # include "os_solaris.inline.hpp"
- #endif
- #ifdef TARGET_OS_FAMILY_windows
- # include "os_windows.inline.hpp"
- #endif
- extern "C" void jio_print(const char* s); // Declarationtion of jvm method
- outputStream::outputStream(int width) {
- _width = width;
- _position = 0;
- _newlines = 0;
- _precount = 0;
- _indentation = 0;
- }
- outputStream::outputStream(int width, bool has_time_stamps) {
- _width = width;
- _position = 0;
- _newlines = 0;
- _precount = 0;
- _indentation = 0;
- if (has_time_stamps) _stamp.update();
- }
- void outputStream::update_position(const char* s, size_t len) {
- for (size_t i = 0; i < len; i++) {
- char ch = s[i];
- if (ch == '\n') {
- _newlines += 1;
- _precount += _position + 1;
- _position = 0;
- } else if (ch == '\t') {
- int tw = 8 - (_position & 7);
- _position += tw;
- _precount -= tw-1; // invariant: _precount + _position == total count
- } else {
- _position += 1;
- }
- }
- }
- // Execute a vsprintf, using the given buffer if necessary.
- // Return a pointer to the formatted string.
- const char* outputStream::do_vsnprintf(char* buffer, size_t buflen,
- const char* format, va_list ap,
- bool add_cr,
- size_t& result_len) {
- const char* result;
- if (add_cr) buflen--;
- if (!strchr(format, '%')) {
- // constant format string
- result = format;
- result_len = strlen(result);
- if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
- } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') {
- // trivial copy-through format string
- result = va_arg(ap, const char*);
- result_len = strlen(result);
- if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
- } else if (vsnprintf(buffer, buflen, format, ap) >= 0) {
- result = buffer;
- result_len = strlen(result);
- } else {
- DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");)
- result = buffer;
- result_len = buflen - 1;
- buffer[result_len] = 0;
- }
- if (add_cr) {
- if (result != buffer) {
- strncpy(buffer, result, buflen);
- result = buffer;
- }
- buffer[result_len++] = '\n';
- buffer[result_len] = 0;
- }
- return result;
- }
- void outputStream::print(const char* format, ...) {
- char buffer[O_BUFLEN];
- va_list ap;
- va_start(ap, format);
- size_t len;
- const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len);
- write(str, len);
- va_end(ap);
- }
- void outputStream::print_cr(const char* format, ...) {
- char buffer[O_BUFLEN];
- va_list ap;
- va_start(ap, format);
- size_t len;
- const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len);
- write(str, len);
- va_end(ap);
- }
- void outputStream::vprint(const char *format, va_list argptr) {
- char buffer[O_BUFLEN];
- size_t len;
- const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len);
- write(str, len);
- }
- void outputStream::vprint_cr(const char* format, va_list argptr) {
- char buffer[O_BUFLEN];
- size_t len;
- const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
- write(str, len);
- }
- void outputStream::fill_to(int col) {
- int need_fill = col - position();
- sp(need_fill);
- }
- void outputStream::move_to(int col, int slop, int min_space) {
- if (position() >= col + slop)
- cr();
- int need_fill = col - position();
- if (need_fill < min_space)
- need_fill = min_space;
- sp(need_fill);
- }
- void outputStream::put(char ch) {
- assert(ch != 0, "please fix call site");
- char buf[] = { ch, '\0' };
- write(buf, 1);
- }
- #define SP_USE_TABS false
- void outputStream::sp(int count) {
- if (count < 0) return;
- if (SP_USE_TABS && count >= 8) {
- int target = position() + count;
- while (count >= 8) {
- this->write("\t", 1);
- count -= 8;
- }
- count = target - position();
- }
- while (count > 0) {
- int nw = (count > 8) ? 8 : count;
- this->write(" ", nw);
- count -= nw;
- }
- }
- void outputStream::cr() {
- this->write("\n", 1);
- }
- void outputStream::stamp() {
- if (! _stamp.is_updated()) {
- _stamp.update(); // start at 0 on first call to stamp()
- }
- // outputStream::stamp() may get called by ostream_abort(), use snprintf
- // to avoid allocating large stack buffer in print().
- char buf[40];
- jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds());
- print_raw(buf);
- }
- void outputStream::stamp(bool guard,
- const char* prefix,
- const char* suffix) {
- if (!guard) {
- return;
- }
- print_raw(prefix);
- stamp();
- print_raw(suffix);
- }
- void outputStream::date_stamp(bool guard,
- const char* prefix,
- const char* suffix) {
- if (!guard) {
- return;
- }
- print_raw(prefix);
- static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz";
- static const int buffer_length = 32;
- char buffer[buffer_length];
- const char* iso8601_result = os::iso8601_time(buffer, buffer_length);
- if (iso8601_result != NULL) {
- print_raw(buffer);
- } else {
- print_raw(error_time);
- }
- print_raw(suffix);
- return;
- }
- void outputStream::indent() {
- while (_position < _indentation) sp();
- }
- void outputStream::print_jlong(jlong value) {
- // N.B. Same as INT64_FORMAT
- print(os::jlong_format_specifier(), value);
- }
- void outputStream::print_julong(julong value) {
- // N.B. Same as UINT64_FORMAT
- print(os::julong_format_specifier(), value);
- }
- stringStream::stringStream(size_t initial_size) : outputStream() {
- buffer_length = initial_size;
- buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
- buffer_pos = 0;
- buffer_fixed = false;
- }
- // useful for output to fixed chunks of memory, such as performance counters
- stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
- buffer_length = fixed_buffer_size;
- buffer = fixed_buffer;
- buffer_pos = 0;
- buffer_fixed = true;
- }
- void stringStream::write(const char* s, size_t len) {
- size_t write_len = len; // number of non-null bytes to write
- size_t end = buffer_pos + len + 1; // position after write and final '\0'
- if (end > buffer_length) {
- if (buffer_fixed) {
- // if buffer cannot resize, silently truncate
- end = buffer_length;
- write_len = end - buffer_pos - 1; // leave room for the final '\0'
- } else {
- // For small overruns, double the buffer. For larger ones,
- // increase to the requested size.
- if (end < buffer_length * 2) {
- end = buffer_length * 2;
- }
- char* oldbuf = buffer;
- buffer = NEW_RESOURCE_ARRAY(char, end);
- strncpy(buffer, oldbuf, buffer_pos);
- buffer_length = end;
- }
- }
- // invariant: buffer is always null-terminated
- guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob");
- buffer[buffer_pos + write_len] = 0;
- strncpy(buffer + buffer_pos, s, write_len);
- buffer_pos += write_len;
- // Note that the following does not depend on write_len.
- // This means that position and count get updated
- // even when overflow occurs.
- update_position(s, len);
- }
- char* stringStream::as_string() {
- char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
- strncpy(copy, buffer, buffer_pos);
- copy[buffer_pos] = 0; // terminating null
- return copy;
- }
- stringStream::~stringStream() {}
- xmlStream* xtty;
- outputStream* tty;
- outputStream* gclog_or_tty;
- extern Mutex* tty_lock;
- fileStream::fileStream(const char* file_name) {
- _file = fopen(file_name, "w");
- _need_close = true;
- }
- 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);
- }
- 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);
- }
- 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;
- }
- static const char* make_log_name(const char* log_name, const char* force_directory) {
- const char* basename = log_name;
- char file_sep = os::file_separator()[0];
- const char* cp;
- for (cp = log_name; *cp != '\0'; cp++) {
- if (*cp == '/' || *cp == file_sep) {
- basename = cp+1;
- }
- }
- const char* nametail = log_name;
- // Compute buffer length
- size_t buffer_length;
- if (force_directory != NULL) {
- buffer_length = strlen(force_directory) + strlen(os::file_separator()) +
- strlen(basename) + 1;
- } else {
- buffer_length = strlen(log_name) + 1;
- }
- const char* star = strchr(basename, '*');
- int star_pos = (star == NULL) ? -1 : (star - nametail);
- char pid[32];
- if (star_pos >= 0) {
- jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id());
- buffer_length += strlen(pid);
- }
- // Create big enough buffer.
- char *buf = NEW_C_HEAP_ARRAY(char, buffer_length);
- strcpy(buf, "");
- if (force_directory != NULL) {
- strcat(buf, force_directory);
- strcat(buf, os::file_separator());
- nametail = basename; // completely skip directory prefix
- }
- if (star_pos >= 0) {
- // convert foo*bar.log to foo123bar.log
- int buf_pos = (int) strlen(buf);
- strncpy(&buf[buf_pos], nametail, star_pos);
- strcpy(&buf[buf_pos + star_pos], pid);
- nametail += star_pos + 1; // skip prefix and star
- }
- strcat(buf, nametail); // append rest of name, or all of name
- return buf;
- }
- void defaultStream::init_log() {
- // %%% Need a MutexLocker?
- const char* log_name = LogFile != NULL ? LogFile : "hotspot.log";
- const char* try_name = make_log_name(log_name, NULL);
- fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name);
- if (!file->is_open()) {
- // Try again to open the file.
- char warnbuf[O_BUFLEN*2];
- jio_snprintf(warnbuf, sizeof(warnbuf),
- "Warning: Cannot open log file: %s\n", try_name);
- // Note: This feature is for maintainer use only. No need for L10N.
- jio_print(warnbuf);
- FREE_C_HEAP_ARRAY(char, try_name);
- try_name = make_log_name("hs_pid*.log", os::get_temp_directory());
- jio_snprintf(warnbuf, sizeof(warnbuf),
- "Warning: Forcing option -XX:LogFile=%s\n", try_name);
- jio_print(warnbuf);
- delete file;
- file = new(ResourceObj::C_HEAP) fileStream(try_name);
- FREE_C_HEAP_ARRAY(char, try_name);
- }
- if (file->is_open()) {
- _log_file = file;
- xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file);
- _outer_xmlStream = xs;
- 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(), 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.
- for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
- xs->text()->print_cr("%s=%s", p->key(), 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!
- } else {
- delete(file);
- // and leave xtty as NULL
- LogVMOutput = false;
- DisplayVMOutput = true;
- LogCompilation = false;
- }
- }
- // 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='"INTX_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);
- }
- 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) 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)
- fileStream(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 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 (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;
- }
- 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);
- 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);
- 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)
- #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(), (int)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
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