aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "compiler/compileLog.hpp"
aoqi@0: #include "oops/oop.inline.hpp"
aoqi@0: #include "runtime/arguments.hpp"
aoqi@0: #include "utilities/defaultStream.hpp"
aoqi@0: #include "utilities/ostream.hpp"
aoqi@0: #include "utilities/top.hpp"
aoqi@0: #include "utilities/xmlstream.hpp"
aoqi@0: #ifdef TARGET_OS_FAMILY_linux
aoqi@0: # include "os_linux.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_solaris
aoqi@0: # include "os_solaris.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_windows
aoqi@0: # include "os_windows.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_aix
aoqi@0: # include "os_aix.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_bsd
aoqi@0: # include "os_bsd.inline.hpp"
aoqi@0: #endif
aoqi@0: 
aoqi@0: extern "C" void jio_print(const char* s); // Declarationtion of jvm method
aoqi@0: 
aoqi@0: outputStream::outputStream(int width) {
aoqi@0:   _width       = width;
aoqi@0:   _position    = 0;
aoqi@0:   _newlines    = 0;
aoqi@0:   _precount    = 0;
aoqi@0:   _indentation = 0;
aoqi@0: }
aoqi@0: 
aoqi@0: outputStream::outputStream(int width, bool has_time_stamps) {
aoqi@0:   _width       = width;
aoqi@0:   _position    = 0;
aoqi@0:   _newlines    = 0;
aoqi@0:   _precount    = 0;
aoqi@0:   _indentation = 0;
aoqi@0:   if (has_time_stamps)  _stamp.update();
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::update_position(const char* s, size_t len) {
aoqi@0:   for (size_t i = 0; i < len; i++) {
aoqi@0:     char ch = s[i];
aoqi@0:     if (ch == '\n') {
aoqi@0:       _newlines += 1;
aoqi@0:       _precount += _position + 1;
aoqi@0:       _position = 0;
aoqi@0:     } else if (ch == '\t') {
aoqi@0:       int tw = 8 - (_position & 7);
aoqi@0:       _position += tw;
aoqi@0:       _precount -= tw-1;  // invariant:  _precount + _position == total count
aoqi@0:     } else {
aoqi@0:       _position += 1;
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Execute a vsprintf, using the given buffer if necessary.
aoqi@0: // Return a pointer to the formatted string.
aoqi@0: const char* outputStream::do_vsnprintf(char* buffer, size_t buflen,
aoqi@0:                                        const char* format, va_list ap,
aoqi@0:                                        bool add_cr,
aoqi@0:                                        size_t& result_len) {
aoqi@0:   const char* result;
aoqi@0:   if (add_cr)  buflen--;
aoqi@0:   if (!strchr(format, '%')) {
aoqi@0:     // constant format string
aoqi@0:     result = format;
aoqi@0:     result_len = strlen(result);
aoqi@0:     if (add_cr && result_len >= buflen)  result_len = buflen-1;  // truncate
aoqi@0:   } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') {
aoqi@0:     // trivial copy-through format string
aoqi@0:     result = va_arg(ap, const char*);
aoqi@0:     result_len = strlen(result);
aoqi@0:     if (add_cr && result_len >= buflen)  result_len = buflen-1;  // truncate
aoqi@0:   } else if (vsnprintf(buffer, buflen, format, ap) >= 0) {
aoqi@0:     result = buffer;
aoqi@0:     result_len = strlen(result);
aoqi@0:   } else {
aoqi@0:     DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");)
aoqi@0:     result = buffer;
aoqi@0:     result_len = buflen - 1;
aoqi@0:     buffer[result_len] = 0;
aoqi@0:   }
aoqi@0:   if (add_cr) {
aoqi@0:     if (result != buffer) {
aoqi@0:       strncpy(buffer, result, buflen);
aoqi@0:       result = buffer;
aoqi@0:     }
aoqi@0:     buffer[result_len++] = '\n';
aoqi@0:     buffer[result_len] = 0;
aoqi@0:   }
aoqi@0:   return result;
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::print(const char* format, ...) {
aoqi@0:   char buffer[O_BUFLEN];
aoqi@0:   va_list ap;
aoqi@0:   va_start(ap, format);
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len);
aoqi@0:   write(str, len);
aoqi@0:   va_end(ap);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::print_cr(const char* format, ...) {
aoqi@0:   char buffer[O_BUFLEN];
aoqi@0:   va_list ap;
aoqi@0:   va_start(ap, format);
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len);
aoqi@0:   write(str, len);
aoqi@0:   va_end(ap);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::vprint(const char *format, va_list argptr) {
aoqi@0:   char buffer[O_BUFLEN];
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len);
aoqi@0:   write(str, len);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::vprint_cr(const char* format, va_list argptr) {
aoqi@0:   char buffer[O_BUFLEN];
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
aoqi@0:   write(str, len);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::fill_to(int col) {
aoqi@0:   int need_fill = col - position();
aoqi@0:   sp(need_fill);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::move_to(int col, int slop, int min_space) {
aoqi@0:   if (position() >= col + slop)
aoqi@0:     cr();
aoqi@0:   int need_fill = col - position();
aoqi@0:   if (need_fill < min_space)
aoqi@0:     need_fill = min_space;
aoqi@0:   sp(need_fill);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::put(char ch) {
aoqi@0:   assert(ch != 0, "please fix call site");
aoqi@0:   char buf[] = { ch, '\0' };
aoqi@0:   write(buf, 1);
aoqi@0: }
aoqi@0: 
aoqi@0: #define SP_USE_TABS false
aoqi@0: 
aoqi@0: void outputStream::sp(int count) {
aoqi@0:   if (count < 0)  return;
aoqi@0:   if (SP_USE_TABS && count >= 8) {
aoqi@0:     int target = position() + count;
aoqi@0:     while (count >= 8) {
aoqi@0:       this->write("\t", 1);
aoqi@0:       count -= 8;
aoqi@0:     }
aoqi@0:     count = target - position();
aoqi@0:   }
aoqi@0:   while (count > 0) {
aoqi@0:     int nw = (count > 8) ? 8 : count;
aoqi@0:     this->write("        ", nw);
aoqi@0:     count -= nw;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::cr() {
aoqi@0:   this->write("\n", 1);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::stamp() {
aoqi@0:   if (! _stamp.is_updated()) {
aoqi@0:     _stamp.update(); // start at 0 on first call to stamp()
aoqi@0:   }
aoqi@0: 
aoqi@0:   // outputStream::stamp() may get called by ostream_abort(), use snprintf
aoqi@0:   // to avoid allocating large stack buffer in print().
aoqi@0:   char buf[40];
aoqi@0:   jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds());
aoqi@0:   print_raw(buf);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::stamp(bool guard,
aoqi@0:                          const char* prefix,
aoqi@0:                          const char* suffix) {
aoqi@0:   if (!guard) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   print_raw(prefix);
aoqi@0:   stamp();
aoqi@0:   print_raw(suffix);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::date_stamp(bool guard,
aoqi@0:                               const char* prefix,
aoqi@0:                               const char* suffix) {
aoqi@0:   if (!guard) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   print_raw(prefix);
aoqi@0:   static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz";
aoqi@0:   static const int buffer_length = 32;
aoqi@0:   char buffer[buffer_length];
aoqi@0:   const char* iso8601_result = os::iso8601_time(buffer, buffer_length);
aoqi@0:   if (iso8601_result != NULL) {
aoqi@0:     print_raw(buffer);
aoqi@0:   } else {
aoqi@0:     print_raw(error_time);
aoqi@0:   }
aoqi@0:   print_raw(suffix);
aoqi@0:   return;
aoqi@0: }
aoqi@0: 
aoqi@0: outputStream& outputStream::indent() {
aoqi@0:   while (_position < _indentation) sp();
aoqi@0:   return *this;
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::print_jlong(jlong value) {
aoqi@0:   print(JLONG_FORMAT, value);
aoqi@0: }
aoqi@0: 
aoqi@0: void outputStream::print_julong(julong value) {
aoqi@0:   print(JULONG_FORMAT, value);
aoqi@0: }
aoqi@0: 
aoqi@0: /**
aoqi@0:  * This prints out hex data in a 'windbg' or 'xxd' form, where each line is:
aoqi@0:  *   <hex-address>: 8 * <hex-halfword> <ascii translation (optional)>
aoqi@0:  * example:
aoqi@0:  * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000  .DOF............
aoqi@0:  * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005  .......@... ....
aoqi@0:  * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d  .......@.......]
aoqi@0:  * ...
aoqi@0:  *
aoqi@0:  * indent is applied to each line.  Ends with a CR.
aoqi@0:  */
aoqi@0: void outputStream::print_data(void* data, size_t len, bool with_ascii) {
aoqi@0:   size_t limit = (len + 16) / 16 * 16;
aoqi@0:   for (size_t i = 0; i < limit; ++i) {
aoqi@0:     if (i % 16 == 0) {
aoqi@0:       indent().print(SIZE_FORMAT_HEX_W(07)":", i);
aoqi@0:     }
aoqi@0:     if (i % 2 == 0) {
aoqi@0:       print(" ");
aoqi@0:     }
aoqi@0:     if (i < len) {
aoqi@0:       print("%02x", ((unsigned char*)data)[i]);
aoqi@0:     } else {
aoqi@0:       print("  ");
aoqi@0:     }
aoqi@0:     if ((i + 1) % 16 == 0) {
aoqi@0:       if (with_ascii) {
aoqi@0:         print("  ");
aoqi@0:         for (size_t j = 0; j < 16; ++j) {
aoqi@0:           size_t idx = i + j - 15;
aoqi@0:           if (idx < len) {
aoqi@0:             char c = ((char*)data)[idx];
aoqi@0:             print("%c", c >= 32 && c <= 126 ? c : '.');
aoqi@0:           }
aoqi@0:         }
aoqi@0:       }
aoqi@0:       cr();
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: stringStream::stringStream(size_t initial_size) : outputStream() {
aoqi@0:   buffer_length = initial_size;
aoqi@0:   buffer        = NEW_RESOURCE_ARRAY(char, buffer_length);
aoqi@0:   buffer_pos    = 0;
aoqi@0:   buffer_fixed  = false;
aoqi@0:   DEBUG_ONLY(rm = Thread::current()->current_resource_mark();)
aoqi@0: }
aoqi@0: 
aoqi@0: // useful for output to fixed chunks of memory, such as performance counters
aoqi@0: stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
aoqi@0:   buffer_length = fixed_buffer_size;
aoqi@0:   buffer        = fixed_buffer;
aoqi@0:   buffer_pos    = 0;
aoqi@0:   buffer_fixed  = true;
aoqi@0: }
aoqi@0: 
aoqi@0: void stringStream::write(const char* s, size_t len) {
aoqi@0:   size_t write_len = len;               // number of non-null bytes to write
aoqi@0:   size_t end = buffer_pos + len + 1;    // position after write and final '\0'
aoqi@0:   if (end > buffer_length) {
aoqi@0:     if (buffer_fixed) {
aoqi@0:       // if buffer cannot resize, silently truncate
aoqi@0:       end = buffer_length;
aoqi@0:       write_len = end - buffer_pos - 1; // leave room for the final '\0'
aoqi@0:     } else {
aoqi@0:       // For small overruns, double the buffer.  For larger ones,
aoqi@0:       // increase to the requested size.
aoqi@0:       if (end < buffer_length * 2) {
aoqi@0:         end = buffer_length * 2;
aoqi@0:       }
aoqi@0:       char* oldbuf = buffer;
aoqi@0:       assert(rm == NULL || Thread::current()->current_resource_mark() == rm,
aoqi@0:              "stringStream is re-allocated with a different ResourceMark");
aoqi@0:       buffer = NEW_RESOURCE_ARRAY(char, end);
aoqi@0:       strncpy(buffer, oldbuf, buffer_pos);
aoqi@0:       buffer_length = end;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   // invariant: buffer is always null-terminated
aoqi@0:   guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob");
aoqi@0:   buffer[buffer_pos + write_len] = 0;
aoqi@0:   strncpy(buffer + buffer_pos, s, write_len);
aoqi@0:   buffer_pos += write_len;
aoqi@0: 
aoqi@0:   // Note that the following does not depend on write_len.
aoqi@0:   // This means that position and count get updated
aoqi@0:   // even when overflow occurs.
aoqi@0:   update_position(s, len);
aoqi@0: }
aoqi@0: 
aoqi@0: char* stringStream::as_string() {
aoqi@0:   char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1);
aoqi@0:   strncpy(copy, buffer, buffer_pos);
aoqi@0:   copy[buffer_pos] = 0;  // terminating null
aoqi@0:   return copy;
aoqi@0: }
aoqi@0: 
aoqi@0: stringStream::~stringStream() {}
aoqi@0: 
aoqi@0: xmlStream*   xtty;
aoqi@0: outputStream* tty;
aoqi@0: outputStream* gclog_or_tty;
aoqi@0: extern Mutex* tty_lock;
aoqi@0: 
aoqi@0: #define EXTRACHARLEN   32
aoqi@0: #define CURRENTAPPX    ".current"
aoqi@0: #define FILENAMEBUFLEN  1024
aoqi@0: // convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS
aoqi@0: char* get_datetime_string(char *buf, size_t len) {
aoqi@0:   os::local_time_string(buf, len);
aoqi@0:   int i = (int)strlen(buf);
aoqi@0:   while (i-- >= 0) {
aoqi@0:     if (buf[i] == ' ') buf[i] = '_';
aoqi@0:     else if (buf[i] == ':') buf[i] = '-';
aoqi@0:   }
aoqi@0:   return buf;
aoqi@0: }
aoqi@0: 
aoqi@0: static const char* make_log_name_internal(const char* log_name, const char* force_directory,
aoqi@0:                                                 int pid, const char* tms) {
aoqi@0:   const char* basename = log_name;
aoqi@0:   char file_sep = os::file_separator()[0];
aoqi@0:   const char* cp;
aoqi@0:   char  pid_text[32];
aoqi@0: 
aoqi@0:   for (cp = log_name; *cp != '\0'; cp++) {
aoqi@0:     if (*cp == '/' || *cp == file_sep) {
aoqi@0:       basename = cp + 1;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   const char* nametail = log_name;
aoqi@0:   // Compute buffer length
aoqi@0:   size_t buffer_length;
aoqi@0:   if (force_directory != NULL) {
aoqi@0:     buffer_length = strlen(force_directory) + strlen(os::file_separator()) +
aoqi@0:                     strlen(basename) + 1;
aoqi@0:   } else {
aoqi@0:     buffer_length = strlen(log_name) + 1;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // const char* star = strchr(basename, '*');
aoqi@0:   const char* pts = strstr(basename, "%p");
aoqi@0:   int pid_pos = (pts == NULL) ? -1 : (pts - nametail);
aoqi@0: 
aoqi@0:   if (pid_pos >= 0) {
aoqi@0:     jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid);
aoqi@0:     buffer_length += strlen(pid_text);
aoqi@0:   }
aoqi@0: 
aoqi@0:   pts = strstr(basename, "%t");
aoqi@0:   int tms_pos = (pts == NULL) ? -1 : (pts - nametail);
aoqi@0:   if (tms_pos >= 0) {
aoqi@0:     buffer_length += strlen(tms);
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Create big enough buffer.
aoqi@0:   char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal);
aoqi@0: 
aoqi@0:   strcpy(buf, "");
aoqi@0:   if (force_directory != NULL) {
aoqi@0:     strcat(buf, force_directory);
aoqi@0:     strcat(buf, os::file_separator());
aoqi@0:     nametail = basename;       // completely skip directory prefix
aoqi@0:   }
aoqi@0: 
aoqi@0:   // who is first, %p or %t?
aoqi@0:   int first = -1, second = -1;
aoqi@0:   const char *p1st = NULL;
aoqi@0:   const char *p2nd = NULL;
aoqi@0: 
aoqi@0:   if (pid_pos >= 0 && tms_pos >= 0) {
aoqi@0:     // contains both %p and %t
aoqi@0:     if (pid_pos < tms_pos) {
aoqi@0:       // case foo%pbar%tmonkey.log
aoqi@0:       first  = pid_pos;
aoqi@0:       p1st   = pid_text;
aoqi@0:       second = tms_pos;
aoqi@0:       p2nd   = tms;
aoqi@0:     } else {
aoqi@0:       // case foo%tbar%pmonkey.log
aoqi@0:       first  = tms_pos;
aoqi@0:       p1st   = tms;
aoqi@0:       second = pid_pos;
aoqi@0:       p2nd   = pid_text;
aoqi@0:     }
aoqi@0:   } else if (pid_pos >= 0) {
aoqi@0:     // contains %p only
aoqi@0:     first  = pid_pos;
aoqi@0:     p1st   = pid_text;
aoqi@0:   } else if (tms_pos >= 0) {
aoqi@0:     // contains %t only
aoqi@0:     first  = tms_pos;
aoqi@0:     p1st   = tms;
aoqi@0:   }
aoqi@0: 
aoqi@0:   int buf_pos = (int)strlen(buf);
aoqi@0:   const char* tail = nametail;
aoqi@0: 
aoqi@0:   if (first >= 0) {
aoqi@0:     tail = nametail + first + 2;
aoqi@0:     strncpy(&buf[buf_pos], nametail, first);
aoqi@0:     strcpy(&buf[buf_pos + first], p1st);
aoqi@0:     buf_pos = (int)strlen(buf);
aoqi@0:     if (second >= 0) {
aoqi@0:       strncpy(&buf[buf_pos], tail, second - first - 2);
aoqi@0:       strcpy(&buf[buf_pos + second - first - 2], p2nd);
aoqi@0:       tail = nametail + second + 2;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   strcat(buf, tail);      // append rest of name, or all of name
aoqi@0:   return buf;
aoqi@0: }
aoqi@0: 
aoqi@0: // log_name comes from -XX:LogFile=log_name or -Xloggc:log_name
aoqi@0: // in log_name, %p => pid1234 and
aoqi@0: //              %t => YYYY-MM-DD_HH-MM-SS
aoqi@0: static const char* make_log_name(const char* log_name, const char* force_directory) {
aoqi@0:   char timestr[32];
aoqi@0:   get_datetime_string(timestr, sizeof(timestr));
aoqi@0:   return make_log_name_internal(log_name, force_directory, os::current_process_id(),
aoqi@0:                                 timestr);
aoqi@0: }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0: void test_loggc_filename() {
aoqi@0:   int pid;
aoqi@0:   char  tms[32];
aoqi@0:   char  i_result[FILENAMEBUFLEN];
aoqi@0:   const char* o_result;
aoqi@0:   get_datetime_string(tms, sizeof(tms));
aoqi@0:   pid = os::current_process_id();
aoqi@0: 
aoqi@0:   // test.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test.log", tms);
aoqi@0:   o_result = make_log_name_internal("test.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: 
aoqi@0:   // test-%t-%p.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%s-pid%u.log", tms, pid);
aoqi@0:   o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: 
aoqi@0:   // test-%t%p.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "test-%spid%u.log", tms, pid);
aoqi@0:   o_result = make_log_name_internal("test-%t%p.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t%%p.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: 
aoqi@0:   // %p%t.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u%s.log", pid, tms);
aoqi@0:   o_result = make_log_name_internal("%p%t.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: 
aoqi@0:   // %p-test.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "pid%u-test.log", pid);
aoqi@0:   o_result = make_log_name_internal("%p-test.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: 
aoqi@0:   // %t.log
aoqi@0:   jio_snprintf(i_result, sizeof(char)*FILENAMEBUFLEN, "%s.log", tms);
aoqi@0:   o_result = make_log_name_internal("%t.log", NULL, pid, tms);
aoqi@0:   assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)");
aoqi@0:   FREE_C_HEAP_ARRAY(char, o_result, mtInternal);
aoqi@0: }
aoqi@0: #endif // PRODUCT
aoqi@0: 
aoqi@0: fileStream::fileStream(const char* file_name) {
aoqi@0:   _file = fopen(file_name, "w");
aoqi@0:   if (_file != NULL) {
aoqi@0:     _need_close = true;
aoqi@0:   } else {
aoqi@0:     warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
aoqi@0:     _need_close = false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: fileStream::fileStream(const char* file_name, const char* opentype) {
aoqi@0:   _file = fopen(file_name, opentype);
aoqi@0:   if (_file != NULL) {
aoqi@0:     _need_close = true;
aoqi@0:   } else {
aoqi@0:     warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
aoqi@0:     _need_close = false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void fileStream::write(const char* s, size_t len) {
aoqi@0:   if (_file != NULL)  {
aoqi@0:     // Make an unused local variable to avoid warning from gcc 4.x compiler.
aoqi@0:     size_t count = fwrite(s, 1, len, _file);
aoqi@0:   }
aoqi@0:   update_position(s, len);
aoqi@0: }
aoqi@0: 
aoqi@0: long fileStream::fileSize() {
aoqi@0:   long size = -1;
aoqi@0:   if (_file != NULL) {
aoqi@0:     long pos  = ::ftell(_file);
aoqi@0:     if (::fseek(_file, 0, SEEK_END) == 0) {
aoqi@0:       size = ::ftell(_file);
aoqi@0:     }
aoqi@0:     ::fseek(_file, pos, SEEK_SET);
aoqi@0:   }
aoqi@0:   return size;
aoqi@0: }
aoqi@0: 
aoqi@0: char* fileStream::readln(char *data, int count ) {
aoqi@0:   char * ret = ::fgets(data, count, _file);
aoqi@0:   //Get rid of annoying \n char
aoqi@0:   data[::strlen(data)-1] = '\0';
aoqi@0:   return ret;
aoqi@0: }
aoqi@0: 
aoqi@0: fileStream::~fileStream() {
aoqi@0:   if (_file != NULL) {
aoqi@0:     if (_need_close) fclose(_file);
aoqi@0:     _file      = NULL;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void fileStream::flush() {
aoqi@0:   fflush(_file);
aoqi@0: }
aoqi@0: 
aoqi@0: fdStream::fdStream(const char* file_name) {
aoqi@0:   _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
aoqi@0:   _need_close = true;
aoqi@0: }
aoqi@0: 
aoqi@0: fdStream::~fdStream() {
aoqi@0:   if (_fd != -1) {
aoqi@0:     if (_need_close) close(_fd);
aoqi@0:     _fd = -1;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void fdStream::write(const char* s, size_t len) {
aoqi@0:   if (_fd != -1) {
aoqi@0:     // Make an unused local variable to avoid warning from gcc 4.x compiler.
aoqi@0:     size_t count = ::write(_fd, s, (int)len);
aoqi@0:   }
aoqi@0:   update_position(s, len);
aoqi@0: }
aoqi@0: 
aoqi@0: // dump vm version, os version, platform info, build id,
aoqi@0: // memory usage and command line flags into header
aoqi@0: void gcLogFileStream::dump_loggc_header() {
aoqi@0:   if (is_open()) {
aoqi@0:     print_cr("%s", Abstract_VM_Version::internal_vm_info_string());
aoqi@0:     os::print_memory_info(this);
aoqi@0:     print("CommandLine flags: ");
aoqi@0:     CommandLineFlags::printSetFlags(this);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: gcLogFileStream::~gcLogFileStream() {
aoqi@0:   if (_file != NULL) {
aoqi@0:     if (_need_close) fclose(_file);
aoqi@0:     _file = NULL;
aoqi@0:   }
aoqi@0:   if (_file_name != NULL) {
aoqi@0:     FREE_C_HEAP_ARRAY(char, _file_name, mtInternal);
aoqi@0:     _file_name = NULL;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: gcLogFileStream::gcLogFileStream(const char* file_name) {
aoqi@0:   _cur_file_num = 0;
aoqi@0:   _bytes_written = 0L;
aoqi@0:   _file_name = make_log_name(file_name, NULL);
aoqi@0: 
aoqi@0:   // gc log file rotation
aoqi@0:   if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) {
aoqi@0:     char tempbuf[FILENAMEBUFLEN];
aoqi@0:     jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num);
aoqi@0:     _file = fopen(tempbuf, "w");
aoqi@0:   } else {
aoqi@0:     _file = fopen(_file_name, "w");
aoqi@0:   }
aoqi@0:   if (_file != NULL) {
aoqi@0:     _need_close = true;
aoqi@0:     dump_loggc_header();
aoqi@0:   } else {
aoqi@0:     warning("Cannot open file %s due to %s\n", _file_name, strerror(errno));
aoqi@0:     _need_close = false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void gcLogFileStream::write(const char* s, size_t len) {
aoqi@0:   if (_file != NULL) {
aoqi@0:     size_t count = fwrite(s, 1, len, _file);
aoqi@0:     _bytes_written += count;
aoqi@0:   }
aoqi@0:   update_position(s, len);
aoqi@0: }
aoqi@0: 
aoqi@0: // rotate_log must be called from VMThread at safepoint. In case need change parameters
aoqi@0: // for gc log rotation from thread other than VMThread, a sub type of VM_Operation
aoqi@0: // should be created and be submitted to VMThread's operation queue. DO NOT call this
aoqi@0: // function directly. Currently, it is safe to rotate log at safepoint through VMThread.
aoqi@0: // That is, no mutator threads and concurrent GC threads run parallel with VMThread to
aoqi@0: // write to gc log file at safepoint. If in future, changes made for mutator threads or
aoqi@0: // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log
aoqi@0: // must be synchronized.
aoqi@0: void gcLogFileStream::rotate_log(bool force, outputStream* out) {
aoqi@0:   char time_msg[FILENAMEBUFLEN];
aoqi@0:   char time_str[EXTRACHARLEN];
aoqi@0:   char current_file_name[FILENAMEBUFLEN];
aoqi@0:   char renamed_file_name[FILENAMEBUFLEN];
aoqi@0: 
aoqi@0:   if (!should_rotate(force)) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifdef ASSERT
aoqi@0:   Thread *thread = Thread::current();
aoqi@0:   assert(thread == NULL ||
aoqi@0:          (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()),
aoqi@0:          "Must be VMThread at safepoint");
aoqi@0: #endif
aoqi@0:   if (NumberOfGCLogFiles == 1) {
aoqi@0:     // rotate in same file
aoqi@0:     rewind();
aoqi@0:     _bytes_written = 0L;
aoqi@0:     jio_snprintf(time_msg, sizeof(time_msg), "File  %s rotated at %s\n",
aoqi@0:                  _file_name, os::local_time_string((char *)time_str, sizeof(time_str)));
aoqi@0:     write(time_msg, strlen(time_msg));
aoqi@0: 
aoqi@0:     if (out != NULL) {
aoqi@0:       out->print("%s", time_msg);
aoqi@0:     }
aoqi@0: 
aoqi@0:     dump_loggc_header();
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0: #if defined(_WINDOWS)
aoqi@0: #ifndef F_OK
aoqi@0: #define F_OK 0
aoqi@0: #endif
aoqi@0: #endif // _WINDOWS
aoqi@0: 
aoqi@0:   // rotate file in names extended_filename.0, extended_filename.1, ...,
aoqi@0:   // extended_filename.<NumberOfGCLogFiles - 1>. Current rotation file name will
aoqi@0:   // have a form of extended_filename.<i>.current where i is the current rotation
aoqi@0:   // file number. After it reaches max file size, the file will be saved and renamed
aoqi@0:   // with .current removed from its tail.
aoqi@0:   size_t filename_len = strlen(_file_name);
aoqi@0:   if (_file != NULL) {
aoqi@0:     jio_snprintf(renamed_file_name, filename_len + EXTRACHARLEN, "%s.%d",
aoqi@0:                  _file_name, _cur_file_num);
aoqi@0:     jio_snprintf(current_file_name, filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX,
aoqi@0:                  _file_name, _cur_file_num);
aoqi@0: 
aoqi@0:     const char* msg = force ? "GC log rotation request has been received."
aoqi@0:                             : "GC log file has reached the maximum size.";
aoqi@0:     jio_snprintf(time_msg, sizeof(time_msg), "%s %s Saved as %s\n",
aoqi@0:                      os::local_time_string((char *)time_str, sizeof(time_str)),
aoqi@0:                                                          msg, renamed_file_name);
aoqi@0:     write(time_msg, strlen(time_msg));
aoqi@0: 
aoqi@0:     if (out != NULL) {
aoqi@0:       out->print("%s", time_msg);
aoqi@0:     }
aoqi@0: 
aoqi@0:     fclose(_file);
aoqi@0:     _file = NULL;
aoqi@0: 
aoqi@0:     bool can_rename = true;
aoqi@0:     if (access(current_file_name, F_OK) != 0) {
aoqi@0:       // current file does not exist?
aoqi@0:       warning("No source file exists, cannot rename\n");
aoqi@0:       can_rename = false;
aoqi@0:     }
aoqi@0:     if (can_rename) {
aoqi@0:       if (access(renamed_file_name, F_OK) == 0) {
aoqi@0:         if (remove(renamed_file_name) != 0) {
aoqi@0:           warning("Could not delete existing file %s\n", renamed_file_name);
aoqi@0:           can_rename = false;
aoqi@0:         }
aoqi@0:       } else {
aoqi@0:         // file does not exist, ok to rename
aoqi@0:       }
aoqi@0:     }
aoqi@0:     if (can_rename && rename(current_file_name, renamed_file_name) != 0) {
aoqi@0:       warning("Could not rename %s to %s\n", _file_name, renamed_file_name);
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   _cur_file_num++;
aoqi@0:   if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0;
aoqi@0:   jio_snprintf(current_file_name,  filename_len + EXTRACHARLEN, "%s.%d" CURRENTAPPX,
aoqi@0:                _file_name, _cur_file_num);
aoqi@0:   _file = fopen(current_file_name, "w");
aoqi@0: 
aoqi@0:   if (_file != NULL) {
aoqi@0:     _bytes_written = 0L;
aoqi@0:     _need_close = true;
aoqi@0:     // reuse current_file_name for time_msg
aoqi@0:     jio_snprintf(current_file_name, filename_len + EXTRACHARLEN,
aoqi@0:                  "%s.%d", _file_name, _cur_file_num);
aoqi@0:     jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n",
aoqi@0:                            os::local_time_string((char *)time_str, sizeof(time_str)),
aoqi@0:                            current_file_name);
aoqi@0:     write(time_msg, strlen(time_msg));
aoqi@0: 
aoqi@0:     if (out != NULL) {
aoqi@0:       out->print("%s", time_msg);
aoqi@0:     }
aoqi@0: 
aoqi@0:     dump_loggc_header();
aoqi@0:     // remove the existing file
aoqi@0:     if (access(current_file_name, F_OK) == 0) {
aoqi@0:       if (remove(current_file_name) != 0) {
aoqi@0:         warning("Could not delete existing file %s\n", current_file_name);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   } else {
aoqi@0:     warning("failed to open rotation log file %s due to %s\n"
aoqi@0:             "Turned off GC log file rotation\n",
aoqi@0:                   _file_name, strerror(errno));
aoqi@0:     _need_close = false;
aoqi@0:     FLAG_SET_DEFAULT(UseGCLogFileRotation, false);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: defaultStream* defaultStream::instance = NULL;
aoqi@0: int defaultStream::_output_fd = 1;
aoqi@0: int defaultStream::_error_fd  = 2;
aoqi@0: FILE* defaultStream::_output_stream = stdout;
aoqi@0: FILE* defaultStream::_error_stream  = stderr;
aoqi@0: 
aoqi@0: #define LOG_MAJOR_VERSION 160
aoqi@0: #define LOG_MINOR_VERSION 1
aoqi@0: 
aoqi@0: void defaultStream::init() {
aoqi@0:   _inited = true;
aoqi@0:   if (LogVMOutput || LogCompilation) {
aoqi@0:     init_log();
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: bool defaultStream::has_log_file() {
aoqi@0:   // lazily create log file (at startup, LogVMOutput is false even
aoqi@0:   // if +LogVMOutput is used, because the flags haven't been parsed yet)
aoqi@0:   // For safer printing during fatal error handling, do not init logfile
aoqi@0:   // if a VM error has been reported.
aoqi@0:   if (!_inited && !is_error_reported())  init();
aoqi@0:   return _log_file != NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: void defaultStream::init_log() {
aoqi@0:   // %%% Need a MutexLocker?
aoqi@0:   const char* log_name = LogFile != NULL ? LogFile : "hotspot_%p.log";
aoqi@0:   const char* try_name = make_log_name(log_name, NULL);
aoqi@0:   fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name);
aoqi@0:   if (!file->is_open()) {
aoqi@0:     // Try again to open the file.
aoqi@0:     char warnbuf[O_BUFLEN*2];
aoqi@0:     jio_snprintf(warnbuf, sizeof(warnbuf),
aoqi@0:                  "Warning:  Cannot open log file: %s\n", try_name);
aoqi@0:     // Note:  This feature is for maintainer use only.  No need for L10N.
aoqi@0:     jio_print(warnbuf);
aoqi@0:     FREE_C_HEAP_ARRAY(char, try_name, mtInternal);
aoqi@0:     try_name = make_log_name(log_name, os::get_temp_directory());
aoqi@0:     jio_snprintf(warnbuf, sizeof(warnbuf),
aoqi@0:                  "Warning:  Forcing option -XX:LogFile=%s\n", try_name);
aoqi@0:     jio_print(warnbuf);
aoqi@0:     delete file;
aoqi@0:     file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name);
aoqi@0:   }
aoqi@0:   FREE_C_HEAP_ARRAY(char, try_name, mtInternal);
aoqi@0: 
aoqi@0:   if (file->is_open()) {
aoqi@0:     _log_file = file;
aoqi@0:     xmlStream* xs = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file);
aoqi@0:     _outer_xmlStream = xs;
aoqi@0:     if (this == tty)  xtty = xs;
aoqi@0:     // Write XML header.
aoqi@0:     xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>");
aoqi@0:     // (For now, don't bother to issue a DTD for this private format.)
aoqi@0:     jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds();
aoqi@0:     // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if
aoqi@0:     // we ever get round to introduce that method on the os class
aoqi@0:     xs->head("hotspot_log version='%d %d'"
aoqi@0:              " process='%d' time_ms='"INT64_FORMAT"'",
aoqi@0:              LOG_MAJOR_VERSION, LOG_MINOR_VERSION,
aoqi@0:              os::current_process_id(), (int64_t)time_ms);
aoqi@0:     // Write VM version header immediately.
aoqi@0:     xs->head("vm_version");
aoqi@0:     xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr();
aoqi@0:     xs->tail("name");
aoqi@0:     xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr();
aoqi@0:     xs->tail("release");
aoqi@0:     xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr();
aoqi@0:     xs->tail("info");
aoqi@0:     xs->tail("vm_version");
aoqi@0:     // Record information about the command-line invocation.
aoqi@0:     xs->head("vm_arguments");  // Cf. Arguments::print_on()
aoqi@0:     if (Arguments::num_jvm_flags() > 0) {
aoqi@0:       xs->head("flags");
aoqi@0:       Arguments::print_jvm_flags_on(xs->text());
aoqi@0:       xs->tail("flags");
aoqi@0:     }
aoqi@0:     if (Arguments::num_jvm_args() > 0) {
aoqi@0:       xs->head("args");
aoqi@0:       Arguments::print_jvm_args_on(xs->text());
aoqi@0:       xs->tail("args");
aoqi@0:     }
aoqi@0:     if (Arguments::java_command() != NULL) {
aoqi@0:       xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command());
aoqi@0:       xs->tail("command");
aoqi@0:     }
aoqi@0:     if (Arguments::sun_java_launcher() != NULL) {
aoqi@0:       xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher());
aoqi@0:       xs->tail("launcher");
aoqi@0:     }
aoqi@0:     if (Arguments::system_properties() !=  NULL) {
aoqi@0:       xs->head("properties");
aoqi@0:       // Print it as a java-style property list.
aoqi@0:       // System properties don't generally contain newlines, so don't bother with unparsing.
aoqi@0:       for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
aoqi@0:         xs->text()->print_cr("%s=%s", p->key(), p->value());
aoqi@0:       }
aoqi@0:       xs->tail("properties");
aoqi@0:     }
aoqi@0:     xs->tail("vm_arguments");
aoqi@0:     // tty output per se is grouped under the <tty>...</tty> element.
aoqi@0:     xs->head("tty");
aoqi@0:     // All further non-markup text gets copied to the tty:
aoqi@0:     xs->_text = this;  // requires friend declaration!
aoqi@0:   } else {
aoqi@0:     delete(file);
aoqi@0:     // and leave xtty as NULL
aoqi@0:     LogVMOutput = false;
aoqi@0:     DisplayVMOutput = true;
aoqi@0:     LogCompilation = false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // finish_log() is called during normal VM shutdown. finish_log_on_error() is
aoqi@0: // called by ostream_abort() after a fatal error.
aoqi@0: //
aoqi@0: void defaultStream::finish_log() {
aoqi@0:   xmlStream* xs = _outer_xmlStream;
aoqi@0:   xs->done("tty");
aoqi@0: 
aoqi@0:   // Other log forks are appended here, at the End of Time:
aoqi@0:   CompileLog::finish_log(xs->out());  // write compile logging, if any, now
aoqi@0: 
aoqi@0:   xs->done("hotspot_log");
aoqi@0:   xs->flush();
aoqi@0: 
aoqi@0:   fileStream* file = _log_file;
aoqi@0:   _log_file = NULL;
aoqi@0: 
aoqi@0:   delete _outer_xmlStream;
aoqi@0:   _outer_xmlStream = NULL;
aoqi@0: 
aoqi@0:   file->flush();
aoqi@0:   delete file;
aoqi@0: }
aoqi@0: 
aoqi@0: void defaultStream::finish_log_on_error(char *buf, int buflen) {
aoqi@0:   xmlStream* xs = _outer_xmlStream;
aoqi@0: 
aoqi@0:   if (xs && xs->out()) {
aoqi@0: 
aoqi@0:     xs->done_raw("tty");
aoqi@0: 
aoqi@0:     // Other log forks are appended here, at the End of Time:
aoqi@0:     CompileLog::finish_log_on_error(xs->out(), buf, buflen);  // write compile logging, if any, now
aoqi@0: 
aoqi@0:     xs->done_raw("hotspot_log");
aoqi@0:     xs->flush();
aoqi@0: 
aoqi@0:     fileStream* file = _log_file;
aoqi@0:     _log_file = NULL;
aoqi@0:     _outer_xmlStream = NULL;
aoqi@0: 
aoqi@0:     if (file) {
aoqi@0:       file->flush();
aoqi@0: 
aoqi@0:       // Can't delete or close the file because delete and fclose aren't
aoqi@0:       // async-safe. We are about to die, so leave it to the kernel.
aoqi@0:       // delete file;
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: intx defaultStream::hold(intx writer_id) {
aoqi@0:   bool has_log = has_log_file();  // check before locking
aoqi@0:   if (// impossible, but who knows?
aoqi@0:       writer_id == NO_WRITER ||
aoqi@0: 
aoqi@0:       // bootstrap problem
aoqi@0:       tty_lock == NULL ||
aoqi@0: 
aoqi@0:       // can't grab a lock or call Thread::current() if TLS isn't initialized
aoqi@0:       ThreadLocalStorage::thread() == NULL ||
aoqi@0: 
aoqi@0:       // developer hook
aoqi@0:       !SerializeVMOutput ||
aoqi@0: 
aoqi@0:       // VM already unhealthy
aoqi@0:       is_error_reported() ||
aoqi@0: 
aoqi@0:       // safepoint == global lock (for VM only)
aoqi@0:       (SafepointSynchronize::is_synchronizing() &&
aoqi@0:        Thread::current()->is_VM_thread())
aoqi@0:       ) {
aoqi@0:     // do not attempt to lock unless we know the thread and the VM is healthy
aoqi@0:     return NO_WRITER;
aoqi@0:   }
aoqi@0:   if (_writer == writer_id) {
aoqi@0:     // already held, no need to re-grab the lock
aoqi@0:     return NO_WRITER;
aoqi@0:   }
aoqi@0:   tty_lock->lock_without_safepoint_check();
aoqi@0:   // got the lock
aoqi@0:   if (writer_id != _last_writer) {
aoqi@0:     if (has_log) {
aoqi@0:       _log_file->bol();
aoqi@0:       // output a hint where this output is coming from:
aoqi@0:       _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id);
aoqi@0:     }
aoqi@0:     _last_writer = writer_id;
aoqi@0:   }
aoqi@0:   _writer = writer_id;
aoqi@0:   return writer_id;
aoqi@0: }
aoqi@0: 
aoqi@0: void defaultStream::release(intx holder) {
aoqi@0:   if (holder == NO_WRITER) {
aoqi@0:     // nothing to release:  either a recursive lock, or we scribbled (too bad)
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   if (_writer != holder) {
aoqi@0:     return;  // already unlocked, perhaps via break_tty_lock_for_safepoint
aoqi@0:   }
aoqi@0:   _writer = NO_WRITER;
aoqi@0:   tty_lock->unlock();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // Yuck:  jio_print does not accept char*/len.
aoqi@0: static void call_jio_print(const char* s, size_t len) {
aoqi@0:   char buffer[O_BUFLEN+100];
aoqi@0:   if (len > sizeof(buffer)-1) {
aoqi@0:     warning("increase O_BUFLEN in ostream.cpp -- output truncated");
aoqi@0:     len = sizeof(buffer)-1;
aoqi@0:   }
aoqi@0:   strncpy(buffer, s, len);
aoqi@0:   buffer[len] = '\0';
aoqi@0:   jio_print(buffer);
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void defaultStream::write(const char* s, size_t len) {
aoqi@0:   intx thread_id = os::current_thread_id();
aoqi@0:   intx holder = hold(thread_id);
aoqi@0: 
aoqi@0:   if (DisplayVMOutput &&
aoqi@0:       (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) {
aoqi@0:     // print to output stream. It can be redirected by a vfprintf hook
aoqi@0:     if (s[len] == '\0') {
aoqi@0:       jio_print(s);
aoqi@0:     } else {
aoqi@0:       call_jio_print(s, len);
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   // print to log file
aoqi@0:   if (has_log_file()) {
aoqi@0:     int nl0 = _newlines;
aoqi@0:     xmlTextStream::write(s, len);
aoqi@0:     // flush the log file too, if there were any newlines
aoqi@0:     if (nl0 != _newlines){
aoqi@0:       flush();
aoqi@0:     }
aoqi@0:   } else {
aoqi@0:     update_position(s, len);
aoqi@0:   }
aoqi@0: 
aoqi@0:   release(holder);
aoqi@0: }
aoqi@0: 
aoqi@0: intx ttyLocker::hold_tty() {
aoqi@0:   if (defaultStream::instance == NULL)  return defaultStream::NO_WRITER;
aoqi@0:   intx thread_id = os::current_thread_id();
aoqi@0:   return defaultStream::instance->hold(thread_id);
aoqi@0: }
aoqi@0: 
aoqi@0: void ttyLocker::release_tty(intx holder) {
aoqi@0:   if (holder == defaultStream::NO_WRITER)  return;
aoqi@0:   defaultStream::instance->release(holder);
aoqi@0: }
aoqi@0: 
aoqi@0: bool ttyLocker::release_tty_if_locked() {
aoqi@0:   intx thread_id = os::current_thread_id();
aoqi@0:   if (defaultStream::instance->writer() == thread_id) {
aoqi@0:     // release the lock and return true so callers know if was
aoqi@0:     // previously held.
aoqi@0:     release_tty(thread_id);
aoqi@0:     return true;
aoqi@0:   }
aoqi@0:   return false;
aoqi@0: }
aoqi@0: 
aoqi@0: void ttyLocker::break_tty_lock_for_safepoint(intx holder) {
aoqi@0:   if (defaultStream::instance != NULL &&
aoqi@0:       defaultStream::instance->writer() == holder) {
aoqi@0:     if (xtty != NULL) {
aoqi@0:       xtty->print_cr("<!-- safepoint while printing -->");
aoqi@0:     }
aoqi@0:     defaultStream::instance->release(holder);
aoqi@0:   }
aoqi@0:   // (else there was no lock to break)
aoqi@0: }
aoqi@0: 
aoqi@0: void ostream_init() {
aoqi@0:   if (defaultStream::instance == NULL) {
aoqi@0:     defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream();
aoqi@0:     tty = defaultStream::instance;
aoqi@0: 
aoqi@0:     // We want to ensure that time stamps in GC logs consider time 0
aoqi@0:     // the time when the JVM is initialized, not the first time we ask
aoqi@0:     // for a time stamp. So, here, we explicitly update the time stamp
aoqi@0:     // of tty.
aoqi@0:     tty->time_stamp().update_to(1);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void ostream_init_log() {
aoqi@0:   // For -Xloggc:<file> option - called in runtime/thread.cpp
aoqi@0:   // Note : this must be called AFTER ostream_init()
aoqi@0: 
aoqi@0:   gclog_or_tty = tty; // default to tty
aoqi@0:   if (Arguments::gc_log_filename() != NULL) {
aoqi@0:     fileStream * gclog  = new(ResourceObj::C_HEAP, mtInternal)
aoqi@0:                              gcLogFileStream(Arguments::gc_log_filename());
aoqi@0:     if (gclog->is_open()) {
aoqi@0:       // now we update the time stamp of the GC log to be synced up
aoqi@0:       // with tty.
aoqi@0:       gclog->time_stamp().update_to(tty->time_stamp().ticks());
aoqi@0:     }
aoqi@0:     gclog_or_tty = gclog;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // If we haven't lazily initialized the logfile yet, do it now,
aoqi@0:   // to avoid the possibility of lazy initialization during a VM
aoqi@0:   // crash, which can affect the stability of the fatal error handler.
aoqi@0:   defaultStream::instance->has_log_file();
aoqi@0: }
aoqi@0: 
aoqi@0: // ostream_exit() is called during normal VM exit to finish log files, flush
aoqi@0: // output and free resource.
aoqi@0: void ostream_exit() {
aoqi@0:   static bool ostream_exit_called = false;
aoqi@0:   if (ostream_exit_called)  return;
aoqi@0:   ostream_exit_called = true;
aoqi@0:   if (gclog_or_tty != tty) {
aoqi@0:       delete gclog_or_tty;
aoqi@0:   }
aoqi@0:   {
aoqi@0:       // we temporaly disable PrintMallocFree here
aoqi@0:       // as otherwise it'll lead to using of almost deleted
aoqi@0:       // tty or defaultStream::instance in logging facility
aoqi@0:       // of HeapFree(), see 6391258
aoqi@0:       DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);)
aoqi@0:       if (tty != defaultStream::instance) {
aoqi@0:           delete tty;
aoqi@0:       }
aoqi@0:       if (defaultStream::instance != NULL) {
aoqi@0:           delete defaultStream::instance;
aoqi@0:       }
aoqi@0:   }
aoqi@0:   tty = NULL;
aoqi@0:   xtty = NULL;
aoqi@0:   gclog_or_tty = NULL;
aoqi@0:   defaultStream::instance = NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: // ostream_abort() is called by os::abort() when VM is about to die.
aoqi@0: void ostream_abort() {
aoqi@0:   // Here we can't delete gclog_or_tty and tty, just flush their output
aoqi@0:   if (gclog_or_tty) gclog_or_tty->flush();
aoqi@0:   if (tty) tty->flush();
aoqi@0: 
aoqi@0:   if (defaultStream::instance != NULL) {
aoqi@0:     static char buf[4096];
aoqi@0:     defaultStream::instance->finish_log_on_error(buf, sizeof(buf));
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: staticBufferStream::staticBufferStream(char* buffer, size_t buflen,
aoqi@0:                                        outputStream *outer_stream) {
aoqi@0:   _buffer = buffer;
aoqi@0:   _buflen = buflen;
aoqi@0:   _outer_stream = outer_stream;
aoqi@0:   // compile task prints time stamp relative to VM start
aoqi@0:   _stamp.update_to(1);
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::write(const char* c, size_t len) {
aoqi@0:   _outer_stream->print_raw(c, (int)len);
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::flush() {
aoqi@0:   _outer_stream->flush();
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::print(const char* format, ...) {
aoqi@0:   va_list ap;
aoqi@0:   va_start(ap, format);
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len);
aoqi@0:   write(str, len);
aoqi@0:   va_end(ap);
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::print_cr(const char* format, ...) {
aoqi@0:   va_list ap;
aoqi@0:   va_start(ap, format);
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len);
aoqi@0:   write(str, len);
aoqi@0:   va_end(ap);
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::vprint(const char *format, va_list argptr) {
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len);
aoqi@0:   write(str, len);
aoqi@0: }
aoqi@0: 
aoqi@0: void staticBufferStream::vprint_cr(const char* format, va_list argptr) {
aoqi@0:   size_t len;
aoqi@0:   const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len);
aoqi@0:   write(str, len);
aoqi@0: }
aoqi@0: 
aoqi@0: bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() {
aoqi@0:   buffer_length = initial_size;
aoqi@0:   buffer        = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal);
aoqi@0:   buffer_pos    = 0;
aoqi@0:   buffer_fixed  = false;
aoqi@0:   buffer_max    = bufmax;
aoqi@0: }
aoqi@0: 
aoqi@0: bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() {
aoqi@0:   buffer_length = fixed_buffer_size;
aoqi@0:   buffer        = fixed_buffer;
aoqi@0:   buffer_pos    = 0;
aoqi@0:   buffer_fixed  = true;
aoqi@0:   buffer_max    = bufmax;
aoqi@0: }
aoqi@0: 
aoqi@0: void bufferedStream::write(const char* s, size_t len) {
aoqi@0: 
aoqi@0:   if(buffer_pos + len > buffer_max) {
aoqi@0:     flush();
aoqi@0:   }
aoqi@0: 
aoqi@0:   size_t end = buffer_pos + len;
aoqi@0:   if (end >= buffer_length) {
aoqi@0:     if (buffer_fixed) {
aoqi@0:       // if buffer cannot resize, silently truncate
aoqi@0:       len = buffer_length - buffer_pos - 1;
aoqi@0:     } else {
aoqi@0:       // For small overruns, double the buffer.  For larger ones,
aoqi@0:       // increase to the requested size.
aoqi@0:       if (end < buffer_length * 2) {
aoqi@0:         end = buffer_length * 2;
aoqi@0:       }
aoqi@0:       buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal);
aoqi@0:       buffer_length = end;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   memcpy(buffer + buffer_pos, s, len);
aoqi@0:   buffer_pos += len;
aoqi@0:   update_position(s, len);
aoqi@0: }
aoqi@0: 
aoqi@0: char* bufferedStream::as_string() {
aoqi@0:   char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
aoqi@0:   strncpy(copy, buffer, buffer_pos);
aoqi@0:   copy[buffer_pos] = 0;  // terminating null
aoqi@0:   return copy;
aoqi@0: }
aoqi@0: 
aoqi@0: bufferedStream::~bufferedStream() {
aoqi@0:   if (!buffer_fixed) {
aoqi@0:     FREE_C_HEAP_ARRAY(char, buffer, mtInternal);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0: 
aoqi@0: #if defined(SOLARIS) || defined(LINUX) || defined(AIX) || defined(_ALLBSD_SOURCE)
aoqi@0: #include <sys/types.h>
aoqi@0: #include <sys/socket.h>
aoqi@0: #include <netinet/in.h>
aoqi@0: #include <arpa/inet.h>
aoqi@0: #endif
aoqi@0: 
aoqi@0: // Network access
aoqi@0: networkStream::networkStream() : bufferedStream(1024*10, 1024*10) {
aoqi@0: 
aoqi@0:   _socket = -1;
aoqi@0: 
aoqi@0:   int result = os::socket(AF_INET, SOCK_STREAM, 0);
aoqi@0:   if (result <= 0) {
aoqi@0:     assert(false, "Socket could not be created!");
aoqi@0:   } else {
aoqi@0:     _socket = result;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: int networkStream::read(char *buf, size_t len) {
aoqi@0:   return os::recv(_socket, buf, (int)len, 0);
aoqi@0: }
aoqi@0: 
aoqi@0: void networkStream::flush() {
aoqi@0:   if (size() != 0) {
aoqi@0:     int result = os::raw_send(_socket, (char *)base(), size(), 0);
aoqi@0:     assert(result != -1, "connection error");
aoqi@0:     assert(result == (int)size(), "didn't send enough data");
aoqi@0:   }
aoqi@0:   reset();
aoqi@0: }
aoqi@0: 
aoqi@0: networkStream::~networkStream() {
aoqi@0:   close();
aoqi@0: }
aoqi@0: 
aoqi@0: void networkStream::close() {
aoqi@0:   if (_socket != -1) {
aoqi@0:     flush();
aoqi@0:     os::socket_close(_socket);
aoqi@0:     _socket = -1;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: bool networkStream::connect(const char *ip, short port) {
aoqi@0: 
aoqi@0:   struct sockaddr_in server;
aoqi@0:   server.sin_family = AF_INET;
aoqi@0:   server.sin_port = htons(port);
aoqi@0: 
aoqi@0:   server.sin_addr.s_addr = inet_addr(ip);
aoqi@0:   if (server.sin_addr.s_addr == (uint32_t)-1) {
aoqi@0:     struct hostent* host = os::get_host_by_name((char*)ip);
aoqi@0:     if (host != NULL) {
aoqi@0:       memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length);
aoqi@0:     } else {
aoqi@0:       return false;
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0: 
aoqi@0:   int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in));
aoqi@0:   return (result >= 0);
aoqi@0: }
aoqi@0: 
aoqi@0: #endif