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0
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1 /*
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2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_ostream.cpp.incl"
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27
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28 extern "C" void jio_print(const char* s); // Declarationtion of jvm method
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29
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30 outputStream::outputStream(int width) {
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31 _width = width;
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32 _position = 0;
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33 _newlines = 0;
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34 _precount = 0;
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35 _indentation = 0;
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36 }
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37
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38 outputStream::outputStream(int width, bool has_time_stamps) {
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39 _width = width;
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40 _position = 0;
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41 _newlines = 0;
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42 _precount = 0;
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43 _indentation = 0;
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44 if (has_time_stamps) _stamp.update();
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45 }
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46
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47 void outputStream::update_position(const char* s, size_t len) {
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48 for (size_t i = 0; i < len; i++) {
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49 char ch = s[i];
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50 if (ch == '\n') {
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51 _newlines += 1;
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52 _precount += _position + 1;
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53 _position = 0;
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54 } else if (ch == '\t') {
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55 _position += 8;
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56 _precount -= 7; // invariant: _precount + _position == total count
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57 } else {
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58 _position += 1;
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59 }
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60 }
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61 }
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62
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63 // Execute a vsprintf, using the given buffer if necessary.
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64 // Return a pointer to the formatted string.
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65 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen,
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66 const char* format, va_list ap,
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67 bool add_cr,
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68 size_t& result_len) {
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69 const char* result;
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70 if (add_cr) buflen--;
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71 if (!strchr(format, '%')) {
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72 // constant format string
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73 result = format;
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74 result_len = strlen(result);
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75 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
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76 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') {
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77 // trivial copy-through format string
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78 result = va_arg(ap, const char*);
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79 result_len = strlen(result);
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80 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate
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81 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) {
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82 result = buffer;
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83 result_len = strlen(result);
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84 } else {
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85 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");)
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86 result = buffer;
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87 result_len = buflen - 1;
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88 buffer[result_len] = 0;
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89 }
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90 if (add_cr) {
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91 if (result != buffer) {
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92 strncpy(buffer, result, buflen);
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93 result = buffer;
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94 }
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95 buffer[result_len++] = '\n';
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96 buffer[result_len] = 0;
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97 }
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98 return result;
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99 }
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100
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101 void outputStream::print(const char* format, ...) {
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102 char buffer[O_BUFLEN];
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103 va_list ap;
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104 va_start(ap, format);
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105 size_t len;
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106 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len);
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107 write(str, len);
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108 va_end(ap);
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109 }
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110
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111 void outputStream::print_cr(const char* format, ...) {
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112 char buffer[O_BUFLEN];
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113 va_list ap;
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114 va_start(ap, format);
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115 size_t len;
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116 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len);
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117 write(str, len);
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118 va_end(ap);
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119 }
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120
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121 void outputStream::vprint(const char *format, va_list argptr) {
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122 char buffer[O_BUFLEN];
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123 size_t len;
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124 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len);
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125 write(str, len);
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126 }
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127
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128 void outputStream::vprint_cr(const char* format, va_list argptr) {
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129 char buffer[O_BUFLEN];
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130 size_t len;
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131 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
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132 write(str, len);
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133 }
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134
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135 void outputStream::fill_to(int col) {
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136 while (position() < col) sp();
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137 }
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138
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139 void outputStream::put(char ch) {
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140 assert(ch != 0, "please fix call site");
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141 char buf[] = { ch, '\0' };
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142 write(buf, 1);
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143 }
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144
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145 void outputStream::sp() {
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146 this->write(" ", 1);
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147 }
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148
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149 void outputStream::cr() {
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150 this->write("\n", 1);
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151 }
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152
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153 void outputStream::stamp() {
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154 if (! _stamp.is_updated()) {
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155 _stamp.update(); // start at 0 on first call to stamp()
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156 }
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157
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158 // outputStream::stamp() may get called by ostream_abort(), use snprintf
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159 // to avoid allocating large stack buffer in print().
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160 char buf[40];
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161 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds());
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162 print_raw(buf);
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163 }
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164
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165 void outputStream::date_stamp(bool guard,
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166 const char* prefix,
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167 const char* suffix) {
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168 if (!guard) {
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169 return;
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170 }
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171 print_raw(prefix);
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172 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz";
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173 static const int buffer_length = 32;
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174 char buffer[buffer_length];
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175 const char* iso8601_result = os::iso8601_time(buffer, buffer_length);
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176 if (iso8601_result != NULL) {
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177 print_raw(buffer);
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178 } else {
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179 print_raw(error_time);
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180 }
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181 print_raw(suffix);
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182 return;
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183 }
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184
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185 void outputStream::indent() {
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186 while (_position < _indentation) sp();
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187 }
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188
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189 void outputStream::print_jlong(jlong value) {
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190 // N.B. Same as INT64_FORMAT
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191 print(os::jlong_format_specifier(), value);
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192 }
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193
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194 void outputStream::print_julong(julong value) {
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195 // N.B. Same as UINT64_FORMAT
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196 print(os::julong_format_specifier(), value);
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197 }
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198
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199 stringStream::stringStream(size_t initial_size) : outputStream() {
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200 buffer_length = initial_size;
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201 buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
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202 buffer_pos = 0;
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203 buffer_fixed = false;
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204 }
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205
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206 // useful for output to fixed chunks of memory, such as performance counters
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207 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
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208 buffer_length = fixed_buffer_size;
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209 buffer = fixed_buffer;
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210 buffer_pos = 0;
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211 buffer_fixed = true;
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212 }
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213
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214 void stringStream::write(const char* s, size_t len) {
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215 size_t write_len = len; // number of non-null bytes to write
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216 size_t end = buffer_pos + len + 1; // position after write and final '\0'
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217 if (end > buffer_length) {
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218 if (buffer_fixed) {
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219 // if buffer cannot resize, silently truncate
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220 end = buffer_length;
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221 write_len = end - buffer_pos - 1; // leave room for the final '\0'
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222 } else {
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223 // For small overruns, double the buffer. For larger ones,
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224 // increase to the requested size.
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225 if (end < buffer_length * 2) {
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226 end = buffer_length * 2;
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227 }
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228 char* oldbuf = buffer;
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229 buffer = NEW_RESOURCE_ARRAY(char, end);
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230 strncpy(buffer, oldbuf, buffer_pos);
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231 buffer_length = end;
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232 }
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233 }
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234 // invariant: buffer is always null-terminated
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235 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob");
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236 buffer[buffer_pos + write_len] = 0;
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237 strncpy(buffer + buffer_pos, s, write_len);
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238 buffer_pos += write_len;
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239
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240 // Note that the following does not depend on write_len.
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241 // This means that position and count get updated
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242 // even when overflow occurs.
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243 update_position(s, len);
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244 }
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245
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246 char* stringStream::as_string() {
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247 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
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248 strncpy(copy, buffer, buffer_pos);
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249 copy[buffer_pos] = 0; // terminating null
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250 return copy;
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251 }
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252
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253 stringStream::~stringStream() {}
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254
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255 xmlStream* xtty;
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256 outputStream* tty;
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257 outputStream* gclog_or_tty;
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258 extern Mutex* tty_lock;
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259
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260 fileStream::fileStream(const char* file_name) {
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261 _file = fopen(file_name, "w");
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262 _need_close = true;
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263 }
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264
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265 void fileStream::write(const char* s, size_t len) {
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266 if (_file != NULL) fwrite(s, 1, len, _file);
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267 update_position(s, len);
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268 }
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269
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270 fileStream::~fileStream() {
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271 if (_file != NULL) {
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272 if (_need_close) fclose(_file);
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273 _file = NULL;
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274 }
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275 }
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276
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277 void fileStream::flush() {
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278 fflush(_file);
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279 }
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280
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281 fdStream::fdStream(const char* file_name) {
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282 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
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283 _need_close = true;
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284 }
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285
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286 fdStream::~fdStream() {
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287 if (_fd != -1) {
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288 if (_need_close) close(_fd);
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289 _fd = -1;
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290 }
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291 }
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292
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293 void fdStream::write(const char* s, size_t len) {
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294 if (_fd != -1) ::write(_fd, s, (int)len);
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295 update_position(s, len);
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296 }
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297
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298 defaultStream* defaultStream::instance = NULL;
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299 int defaultStream::_output_fd = 1;
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300 int defaultStream::_error_fd = 2;
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301 FILE* defaultStream::_output_stream = stdout;
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302 FILE* defaultStream::_error_stream = stderr;
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303
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304 #define LOG_MAJOR_VERSION 160
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305 #define LOG_MINOR_VERSION 1
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306
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307 void defaultStream::init() {
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308 _inited = true;
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309 if (LogVMOutput || LogCompilation) {
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310 init_log();
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311 }
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312 }
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313
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314 bool defaultStream::has_log_file() {
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315 // lazily create log file (at startup, LogVMOutput is false even
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316 // if +LogVMOutput is used, because the flags haven't been parsed yet)
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317 // For safer printing during fatal error handling, do not init logfile
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318 // if a VM error has been reported.
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319 if (!_inited && !is_error_reported()) init();
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320 return _log_file != NULL;
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321 }
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322
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323 static const char* make_log_name(const char* log_name, const char* force_directory, char* buf) {
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324 const char* basename = log_name;
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325 char file_sep = os::file_separator()[0];
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326 const char* cp;
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327 for (cp = log_name; *cp != '\0'; cp++) {
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328 if (*cp == '/' || *cp == file_sep) {
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329 basename = cp+1;
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330 }
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331 }
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332 const char* nametail = log_name;
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333
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334 strcpy(buf, "");
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335 if (force_directory != NULL) {
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336 strcat(buf, force_directory);
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337 strcat(buf, os::file_separator());
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338 nametail = basename; // completely skip directory prefix
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339 }
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340
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341 const char* star = strchr(basename, '*');
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342 int star_pos = (star == NULL) ? -1 : (star - nametail);
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343
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344 if (star_pos >= 0) {
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345 // convert foo*bar.log to foo123bar.log
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346 int buf_pos = (int) strlen(buf);
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347 strncpy(&buf[buf_pos], nametail, star_pos);
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348 sprintf(&buf[buf_pos + star_pos], "%u", os::current_process_id());
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349 nametail += star_pos + 1; // skip prefix and star
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350 }
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351
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352 strcat(buf, nametail); // append rest of name, or all of name
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353 return buf;
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354 }
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355
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356 void defaultStream::init_log() {
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357 // %%% Need a MutexLocker?
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358 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log";
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359 char buf[O_BUFLEN*2];
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360 const char* try_name = make_log_name(log_name, NULL, buf);
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361 fileStream* file = new(ResourceObj::C_HEAP) fileStream(try_name);
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362 if (!file->is_open()) {
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363 // Try again to open the file.
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364 char warnbuf[O_BUFLEN*2];
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365 sprintf(warnbuf, "Warning: Cannot open log file: %s\n", try_name);
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366 // Note: This feature is for maintainer use only. No need for L10N.
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367 jio_print(warnbuf);
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368 try_name = make_log_name("hs_pid*.log", os::get_temp_directory(), buf);
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369 sprintf(warnbuf, "Warning: Forcing option -XX:LogFile=%s\n", try_name);
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370 jio_print(warnbuf);
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371 delete file;
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372 file = new(ResourceObj::C_HEAP) fileStream(try_name);
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373 }
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374 if (file->is_open()) {
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375 _log_file = file;
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376 xmlStream* xs = new(ResourceObj::C_HEAP) xmlStream(file);
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377 _outer_xmlStream = xs;
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378 if (this == tty) xtty = xs;
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379 // Write XML header.
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380 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>");
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381 // (For now, don't bother to issue a DTD for this private format.)
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382 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds();
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383 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if
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384 // we ever get round to introduce that method on the os class
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385 xs->head("hotspot_log version='%d %d'"
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386 " process='%d' time_ms='"INT64_FORMAT"'",
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387 LOG_MAJOR_VERSION, LOG_MINOR_VERSION,
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388 os::current_process_id(), time_ms);
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389 // Write VM version header immediately.
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390 xs->head("vm_version");
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391 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr();
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392 xs->tail("name");
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393 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr();
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394 xs->tail("release");
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395 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr();
|
|
|
396 xs->tail("info");
|
|
|
397 xs->tail("vm_version");
|
|
|
398 // Record information about the command-line invocation.
|
|
|
399 xs->head("vm_arguments"); // Cf. Arguments::print_on()
|
|
|
400 if (Arguments::num_jvm_flags() > 0) {
|
|
|
401 xs->head("flags");
|
|
|
402 Arguments::print_jvm_flags_on(xs->text());
|
|
|
403 xs->tail("flags");
|
|
|
404 }
|
|
|
405 if (Arguments::num_jvm_args() > 0) {
|
|
|
406 xs->head("args");
|
|
|
407 Arguments::print_jvm_args_on(xs->text());
|
|
|
408 xs->tail("args");
|
|
|
409 }
|
|
|
410 if (Arguments::java_command() != NULL) {
|
|
|
411 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command());
|
|
|
412 xs->tail("command");
|
|
|
413 }
|
|
|
414 if (Arguments::sun_java_launcher() != NULL) {
|
|
|
415 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher());
|
|
|
416 xs->tail("launcher");
|
|
|
417 }
|
|
|
418 if (Arguments::system_properties() != NULL) {
|
|
|
419 xs->head("properties");
|
|
|
420 // Print it as a java-style property list.
|
|
|
421 // System properties don't generally contain newlines, so don't bother with unparsing.
|
|
|
422 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
|
|
|
423 xs->text()->print_cr("%s=%s", p->key(), p->value());
|
|
|
424 }
|
|
|
425 xs->tail("properties");
|
|
|
426 }
|
|
|
427 xs->tail("vm_arguments");
|
|
|
428 // tty output per se is grouped under the <tty>...</tty> element.
|
|
|
429 xs->head("tty");
|
|
|
430 // All further non-markup text gets copied to the tty:
|
|
|
431 xs->_text = this; // requires friend declaration!
|
|
|
432 } else {
|
|
|
433 delete(file);
|
|
|
434 // and leave xtty as NULL
|
|
|
435 LogVMOutput = false;
|
|
|
436 DisplayVMOutput = true;
|
|
|
437 LogCompilation = false;
|
|
|
438 }
|
|
|
439 }
|
|
|
440
|
|
|
441 // finish_log() is called during normal VM shutdown. finish_log_on_error() is
|
|
|
442 // called by ostream_abort() after a fatal error.
|
|
|
443 //
|
|
|
444 void defaultStream::finish_log() {
|
|
|
445 xmlStream* xs = _outer_xmlStream;
|
|
|
446 xs->done("tty");
|
|
|
447
|
|
|
448 // Other log forks are appended here, at the End of Time:
|
|
|
449 CompileLog::finish_log(xs->out()); // write compile logging, if any, now
|
|
|
450
|
|
|
451 xs->done("hotspot_log");
|
|
|
452 xs->flush();
|
|
|
453
|
|
|
454 fileStream* file = _log_file;
|
|
|
455 _log_file = NULL;
|
|
|
456
|
|
|
457 delete _outer_xmlStream;
|
|
|
458 _outer_xmlStream = NULL;
|
|
|
459
|
|
|
460 file->flush();
|
|
|
461 delete file;
|
|
|
462 }
|
|
|
463
|
|
|
464 void defaultStream::finish_log_on_error(char *buf, int buflen) {
|
|
|
465 xmlStream* xs = _outer_xmlStream;
|
|
|
466
|
|
|
467 if (xs && xs->out()) {
|
|
|
468
|
|
|
469 xs->done_raw("tty");
|
|
|
470
|
|
|
471 // Other log forks are appended here, at the End of Time:
|
|
|
472 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now
|
|
|
473
|
|
|
474 xs->done_raw("hotspot_log");
|
|
|
475 xs->flush();
|
|
|
476
|
|
|
477 fileStream* file = _log_file;
|
|
|
478 _log_file = NULL;
|
|
|
479 _outer_xmlStream = NULL;
|
|
|
480
|
|
|
481 if (file) {
|
|
|
482 file->flush();
|
|
|
483
|
|
|
484 // Can't delete or close the file because delete and fclose aren't
|
|
|
485 // async-safe. We are about to die, so leave it to the kernel.
|
|
|
486 // delete file;
|
|
|
487 }
|
|
|
488 }
|
|
|
489 }
|
|
|
490
|
|
|
491 intx defaultStream::hold(intx writer_id) {
|
|
|
492 bool has_log = has_log_file(); // check before locking
|
|
|
493 if (// impossible, but who knows?
|
|
|
494 writer_id == NO_WRITER ||
|
|
|
495
|
|
|
496 // bootstrap problem
|
|
|
497 tty_lock == NULL ||
|
|
|
498
|
|
|
499 // can't grab a lock or call Thread::current() if TLS isn't initialized
|
|
|
500 ThreadLocalStorage::thread() == NULL ||
|
|
|
501
|
|
|
502 // developer hook
|
|
|
503 !SerializeVMOutput ||
|
|
|
504
|
|
|
505 // VM already unhealthy
|
|
|
506 is_error_reported() ||
|
|
|
507
|
|
|
508 // safepoint == global lock (for VM only)
|
|
|
509 (SafepointSynchronize::is_synchronizing() &&
|
|
|
510 Thread::current()->is_VM_thread())
|
|
|
511 ) {
|
|
|
512 // do not attempt to lock unless we know the thread and the VM is healthy
|
|
|
513 return NO_WRITER;
|
|
|
514 }
|
|
|
515 if (_writer == writer_id) {
|
|
|
516 // already held, no need to re-grab the lock
|
|
|
517 return NO_WRITER;
|
|
|
518 }
|
|
|
519 tty_lock->lock_without_safepoint_check();
|
|
|
520 // got the lock
|
|
|
521 if (writer_id != _last_writer) {
|
|
|
522 if (has_log) {
|
|
|
523 _log_file->bol();
|
|
|
524 // output a hint where this output is coming from:
|
|
|
525 _log_file->print_cr("<writer thread='"INTX_FORMAT"'/>", writer_id);
|
|
|
526 }
|
|
|
527 _last_writer = writer_id;
|
|
|
528 }
|
|
|
529 _writer = writer_id;
|
|
|
530 return writer_id;
|
|
|
531 }
|
|
|
532
|
|
|
533 void defaultStream::release(intx holder) {
|
|
|
534 if (holder == NO_WRITER) {
|
|
|
535 // nothing to release: either a recursive lock, or we scribbled (too bad)
|
|
|
536 return;
|
|
|
537 }
|
|
|
538 if (_writer != holder) {
|
|
|
539 return; // already unlocked, perhaps via break_tty_lock_for_safepoint
|
|
|
540 }
|
|
|
541 _writer = NO_WRITER;
|
|
|
542 tty_lock->unlock();
|
|
|
543 }
|
|
|
544
|
|
|
545
|
|
|
546 // Yuck: jio_print does not accept char*/len.
|
|
|
547 static void call_jio_print(const char* s, size_t len) {
|
|
|
548 char buffer[O_BUFLEN+100];
|
|
|
549 if (len > sizeof(buffer)-1) {
|
|
|
550 warning("increase O_BUFLEN in ostream.cpp -- output truncated");
|
|
|
551 len = sizeof(buffer)-1;
|
|
|
552 }
|
|
|
553 strncpy(buffer, s, len);
|
|
|
554 buffer[len] = '\0';
|
|
|
555 jio_print(buffer);
|
|
|
556 }
|
|
|
557
|
|
|
558
|
|
|
559 void defaultStream::write(const char* s, size_t len) {
|
|
|
560 intx thread_id = os::current_thread_id();
|
|
|
561 intx holder = hold(thread_id);
|
|
|
562
|
|
|
563 if (DisplayVMOutput &&
|
|
|
564 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) {
|
|
|
565 // print to output stream. It can be redirected by a vfprintf hook
|
|
|
566 if (s[len] == '\0') {
|
|
|
567 jio_print(s);
|
|
|
568 } else {
|
|
|
569 call_jio_print(s, len);
|
|
|
570 }
|
|
|
571 }
|
|
|
572
|
|
|
573 // print to log file
|
|
|
574 if (has_log_file()) {
|
|
|
575 int nl0 = _newlines;
|
|
|
576 xmlTextStream::write(s, len);
|
|
|
577 // flush the log file too, if there were any newlines
|
|
|
578 if (nl0 != _newlines){
|
|
|
579 flush();
|
|
|
580 }
|
|
|
581 } else {
|
|
|
582 update_position(s, len);
|
|
|
583 }
|
|
|
584
|
|
|
585 release(holder);
|
|
|
586 }
|
|
|
587
|
|
|
588 intx ttyLocker::hold_tty() {
|
|
|
589 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER;
|
|
|
590 intx thread_id = os::current_thread_id();
|
|
|
591 return defaultStream::instance->hold(thread_id);
|
|
|
592 }
|
|
|
593
|
|
|
594 void ttyLocker::release_tty(intx holder) {
|
|
|
595 if (holder == defaultStream::NO_WRITER) return;
|
|
|
596 defaultStream::instance->release(holder);
|
|
|
597 }
|
|
|
598
|
|
|
599 void ttyLocker::break_tty_lock_for_safepoint(intx holder) {
|
|
|
600 if (defaultStream::instance != NULL &&
|
|
|
601 defaultStream::instance->writer() == holder) {
|
|
|
602 if (xtty != NULL) {
|
|
|
603 xtty->print_cr("<!-- safepoint while printing -->");
|
|
|
604 }
|
|
|
605 defaultStream::instance->release(holder);
|
|
|
606 }
|
|
|
607 // (else there was no lock to break)
|
|
|
608 }
|
|
|
609
|
|
|
610 void ostream_init() {
|
|
|
611 if (defaultStream::instance == NULL) {
|
|
|
612 defaultStream::instance = new(ResourceObj::C_HEAP) defaultStream();
|
|
|
613 tty = defaultStream::instance;
|
|
|
614
|
|
|
615 // We want to ensure that time stamps in GC logs consider time 0
|
|
|
616 // the time when the JVM is initialized, not the first time we ask
|
|
|
617 // for a time stamp. So, here, we explicitly update the time stamp
|
|
|
618 // of tty.
|
|
|
619 tty->time_stamp().update_to(1);
|
|
|
620 }
|
|
|
621 }
|
|
|
622
|
|
|
623 void ostream_init_log() {
|
|
|
624 // For -Xloggc:<file> option - called in runtime/thread.cpp
|
|
|
625 // Note : this must be called AFTER ostream_init()
|
|
|
626
|
|
|
627 gclog_or_tty = tty; // default to tty
|
|
|
628 if (Arguments::gc_log_filename() != NULL) {
|
|
|
629 fileStream * gclog = new(ResourceObj::C_HEAP)
|
|
|
630 fileStream(Arguments::gc_log_filename());
|
|
|
631 if (gclog->is_open()) {
|
|
|
632 // now we update the time stamp of the GC log to be synced up
|
|
|
633 // with tty.
|
|
|
634 gclog->time_stamp().update_to(tty->time_stamp().ticks());
|
|
|
635 gclog_or_tty = gclog;
|
|
|
636 }
|
|
|
637 }
|
|
|
638
|
|
|
639 // If we haven't lazily initialized the logfile yet, do it now,
|
|
|
640 // to avoid the possibility of lazy initialization during a VM
|
|
|
641 // crash, which can affect the stability of the fatal error handler.
|
|
|
642 defaultStream::instance->has_log_file();
|
|
|
643 }
|
|
|
644
|
|
|
645 // ostream_exit() is called during normal VM exit to finish log files, flush
|
|
|
646 // output and free resource.
|
|
|
647 void ostream_exit() {
|
|
|
648 static bool ostream_exit_called = false;
|
|
|
649 if (ostream_exit_called) return;
|
|
|
650 ostream_exit_called = true;
|
|
|
651 if (gclog_or_tty != tty) {
|
|
|
652 delete gclog_or_tty;
|
|
|
653 }
|
|
|
654 {
|
|
|
655 // we temporaly disable PrintMallocFree here
|
|
|
656 // as otherwise it'll lead to using of almost deleted
|
|
|
657 // tty or defaultStream::instance in logging facility
|
|
|
658 // of HeapFree(), see 6391258
|
|
|
659 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);)
|
|
|
660 if (tty != defaultStream::instance) {
|
|
|
661 delete tty;
|
|
|
662 }
|
|
|
663 if (defaultStream::instance != NULL) {
|
|
|
664 delete defaultStream::instance;
|
|
|
665 }
|
|
|
666 }
|
|
|
667 tty = NULL;
|
|
|
668 xtty = NULL;
|
|
|
669 gclog_or_tty = NULL;
|
|
|
670 defaultStream::instance = NULL;
|
|
|
671 }
|
|
|
672
|
|
|
673 // ostream_abort() is called by os::abort() when VM is about to die.
|
|
|
674 void ostream_abort() {
|
|
|
675 // Here we can't delete gclog_or_tty and tty, just flush their output
|
|
|
676 if (gclog_or_tty) gclog_or_tty->flush();
|
|
|
677 if (tty) tty->flush();
|
|
|
678
|
|
|
679 if (defaultStream::instance != NULL) {
|
|
|
680 static char buf[4096];
|
|
|
681 defaultStream::instance->finish_log_on_error(buf, sizeof(buf));
|
|
|
682 }
|
|
|
683 }
|
|
|
684
|
|
|
685 staticBufferStream::staticBufferStream(char* buffer, size_t buflen,
|
|
|
686 outputStream *outer_stream) {
|
|
|
687 _buffer = buffer;
|
|
|
688 _buflen = buflen;
|
|
|
689 _outer_stream = outer_stream;
|
|
|
690 }
|
|
|
691
|
|
|
692 void staticBufferStream::write(const char* c, size_t len) {
|
|
|
693 _outer_stream->print_raw(c, (int)len);
|
|
|
694 }
|
|
|
695
|
|
|
696 void staticBufferStream::flush() {
|
|
|
697 _outer_stream->flush();
|
|
|
698 }
|
|
|
699
|
|
|
700 void staticBufferStream::print(const char* format, ...) {
|
|
|
701 va_list ap;
|
|
|
702 va_start(ap, format);
|
|
|
703 size_t len;
|
|
|
704 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len);
|
|
|
705 write(str, len);
|
|
|
706 va_end(ap);
|
|
|
707 }
|
|
|
708
|
|
|
709 void staticBufferStream::print_cr(const char* format, ...) {
|
|
|
710 va_list ap;
|
|
|
711 va_start(ap, format);
|
|
|
712 size_t len;
|
|
|
713 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len);
|
|
|
714 write(str, len);
|
|
|
715 va_end(ap);
|
|
|
716 }
|
|
|
717
|
|
|
718 void staticBufferStream::vprint(const char *format, va_list argptr) {
|
|
|
719 size_t len;
|
|
|
720 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len);
|
|
|
721 write(str, len);
|
|
|
722 }
|
|
|
723
|
|
|
724 void staticBufferStream::vprint_cr(const char* format, va_list argptr) {
|
|
|
725 size_t len;
|
|
|
726 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len);
|
|
|
727 write(str, len);
|
|
|
728 }
|
|
|
729
|
|
|
730 bufferedStream::bufferedStream(size_t initial_size) : outputStream() {
|
|
|
731 buffer_length = initial_size;
|
|
|
732 buffer = NEW_C_HEAP_ARRAY(char, buffer_length);
|
|
|
733 buffer_pos = 0;
|
|
|
734 buffer_fixed = false;
|
|
|
735 }
|
|
|
736
|
|
|
737 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() {
|
|
|
738 buffer_length = fixed_buffer_size;
|
|
|
739 buffer = fixed_buffer;
|
|
|
740 buffer_pos = 0;
|
|
|
741 buffer_fixed = true;
|
|
|
742 }
|
|
|
743
|
|
|
744 void bufferedStream::write(const char* s, size_t len) {
|
|
|
745 size_t end = buffer_pos + len;
|
|
|
746 if (end >= buffer_length) {
|
|
|
747 if (buffer_fixed) {
|
|
|
748 // if buffer cannot resize, silently truncate
|
|
|
749 len = buffer_length - buffer_pos - 1;
|
|
|
750 } else {
|
|
|
751 // For small overruns, double the buffer. For larger ones,
|
|
|
752 // increase to the requested size.
|
|
|
753 if (end < buffer_length * 2) {
|
|
|
754 end = buffer_length * 2;
|
|
|
755 }
|
|
|
756 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end);
|
|
|
757 buffer_length = end;
|
|
|
758 }
|
|
|
759 }
|
|
|
760 memcpy(buffer + buffer_pos, s, len);
|
|
|
761 buffer_pos += len;
|
|
|
762 update_position(s, len);
|
|
|
763 }
|
|
|
764
|
|
|
765 char* bufferedStream::as_string() {
|
|
|
766 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1);
|
|
|
767 strncpy(copy, buffer, buffer_pos);
|
|
|
768 copy[buffer_pos] = 0; // terminating null
|
|
|
769 return copy;
|
|
|
770 }
|
|
|
771
|
|
|
772 bufferedStream::~bufferedStream() {
|
|
|
773 if (!buffer_fixed) {
|
|
|
774 FREE_C_HEAP_ARRAY(char, buffer);
|
|
|
775 }
|
|
|
776 }
|
|
|
777
|
|
|
778 #ifndef PRODUCT
|
|
|
779
|
|
|
780 #if defined(SOLARIS) || defined(LINUX)
|
|
|
781 #include <sys/types.h>
|
|
|
782 #include <sys/socket.h>
|
|
|
783 #include <netinet/in.h>
|
|
|
784 #include <arpa/inet.h>
|
|
|
785 #endif
|
|
|
786
|
|
|
787 // Network access
|
|
|
788 networkStream::networkStream() {
|
|
|
789
|
|
|
790 _socket = -1;
|
|
|
791
|
|
|
792 hpi::initialize_socket_library();
|
|
|
793
|
|
|
794 int result = hpi::socket(AF_INET, SOCK_STREAM, 0);
|
|
|
795 if (result <= 0) {
|
|
|
796 assert(false, "Socket could not be created!");
|
|
|
797 } else {
|
|
|
798 _socket = result;
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 int networkStream::read(char *buf, size_t len) {
|
|
|
803 return hpi::recv(_socket, buf, (int)len, 0);
|
|
|
804 }
|
|
|
805
|
|
|
806 void networkStream::flush() {
|
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807 if (size() != 0) {
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808 hpi::send(_socket, (char *)base(), (int)size(), 0);
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809 }
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810 reset();
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811 }
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812
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813 networkStream::~networkStream() {
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814 close();
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815 }
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816
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817 void networkStream::close() {
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818 if (_socket != -1) {
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819 flush();
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|
820 hpi::socket_close(_socket);
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|
821 _socket = -1;
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|
|
822 }
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823 }
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|
|
824
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|
825 bool networkStream::connect(const char *ip, short port) {
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826
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827 struct sockaddr_in server;
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|
|
828 server.sin_family = AF_INET;
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|
|
829 server.sin_port = htons(port);
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|
|
830
|
|
|
831 server.sin_addr.s_addr = inet_addr(ip);
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|
|
832 if (server.sin_addr.s_addr == (unsigned long)-1) {
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|
|
833 #ifdef _WINDOWS
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|
|
834 struct hostent* host = hpi::get_host_by_name((char*)ip);
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|
|
835 #else
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|
|
836 struct hostent* host = gethostbyname(ip);
|
|
|
837 #endif
|
|
|
838 if (host != NULL) {
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|
|
839 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length);
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|
|
840 } else {
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|
|
841 return false;
|
|
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845
|
|
|
846 int result = hpi::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in));
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|
|
847 return (result >= 0);
|
|
|
848 }
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|
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849
|
|
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850 #endif
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