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annotate src/share/vm/services/diagnosticArgument.cpp @ 5978:51612f0c0a79

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7148488: Whitebox tests for the Diagnostic Framework Parser Reviewed-by: brutisso, sla, mgerdin
author nloodin
date Thu, 15 Mar 2012 13:37:13 +0100
parents f1cb6f9cfe21
children d2a62e0f25eb
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1 /*
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2 * Copyright (c) 2011, 2012 Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "memory/allocation.inline.hpp"
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27 #include "runtime/thread.hpp"
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28 #include "services/diagnosticArgument.hpp"
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29
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30 void GenDCmdArgument::read_value(const char* str, size_t len, TRAPS) {
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31 /* NOTE:Some argument types doesn't require a value,
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32 * for instance boolean arguments: "enableFeatureX". is
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33 * equivalent to "enableFeatureX=true". In these cases,
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34 * str will be null. This is perfectly valid.
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35 * All argument types must perform null checks on str.
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36 */
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37
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38 if (is_set() && !allow_multiple()) {
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39 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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40 "Duplicates in diagnostic command arguments\n");
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41 }
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42 parse_value(str, len, CHECK);
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43 set_is_set(true);
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44 }
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45
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46 void GenDCmdArgument::to_string(jlong l, char* buf, size_t len) {
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47 jio_snprintf(buf, len, INT64_FORMAT, l);
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48 }
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49
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50 void GenDCmdArgument::to_string(bool b, char* buf, size_t len) {
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51 jio_snprintf(buf, len, b ? "true" : "false");
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52 }
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53
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54 void GenDCmdArgument::to_string(NanoTimeArgument n, char* buf, size_t len) {
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55 jio_snprintf(buf, len, INT64_FORMAT, n._nanotime);
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56 }
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57
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58 void GenDCmdArgument::to_string(MemorySizeArgument m, char* buf, size_t len) {
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59 jio_snprintf(buf, len, INT64_FORMAT, m._size);
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60 }
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61
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62 void GenDCmdArgument::to_string(char* c, char* buf, size_t len) {
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63 jio_snprintf(buf, len, "%s", c);
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64 }
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65
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66 void GenDCmdArgument::to_string(StringArrayArgument* f, char* buf, size_t len) {
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67 int length = f->array()->length();
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68 size_t written = 0;
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69 buf[0] = 0;
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70 for (int i = 0; i < length; i++) {
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71 char* next_str = f->array()->at(i);
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72 size_t next_size = strlen(next_str);
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73 //Check if there's room left to write next element
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74 if (written + next_size > len) {
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75 return;
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76 }
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77 //Actually write element
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78 strcat(buf, next_str);
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79 written += next_size;
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80 //Check if there's room left for the comma
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81 if (i < length-1 && len - written > 0) {
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82 strcat(buf, ",");
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83 }
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84 }
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85 }
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86
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87 template <> void DCmdArgument<jlong>::parse_value(const char* str,
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88 size_t len, TRAPS) {
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89 if (str == NULL || sscanf(str, INT64_FORMAT, &_value) != 1) {
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90 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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91 "Integer parsing error in diagnostic command arguments\n");
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92 }
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93 }
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94
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95 template <> void DCmdArgument<jlong>::init_value(TRAPS) {
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96 if (has_default()) {
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97 this->parse_value(_default_string, strlen(_default_string), THREAD);
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98 if (HAS_PENDING_EXCEPTION) {
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99 fatal("Default string must be parsable");
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100 }
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101 } else {
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102 set_value(0);
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103 }
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104 }
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105
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106 template <> void DCmdArgument<jlong>::destroy_value() { }
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107
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108 template <> void DCmdArgument<bool>::parse_value(const char* str,
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109 size_t len, TRAPS) {
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110 // len is the length of the current token starting at str
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111 if (len == 0) {
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112 set_value(true);
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113 } else {
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114 if (len == strlen("true") && strncasecmp(str, "true", len) == 0) {
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115 set_value(true);
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116 } else if (len == strlen("false") && strncasecmp(str, "false", len) == 0) {
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117 set_value(false);
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118 } else {
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119 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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120 "Boolean parsing error in diagnostic command arguments");
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121 }
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122 }
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123 }
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124
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125 template <> void DCmdArgument<bool>::init_value(TRAPS) {
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126 if (has_default()) {
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127 this->parse_value(_default_string, strlen(_default_string), THREAD);
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128 if (HAS_PENDING_EXCEPTION) {
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129 fatal("Default string must be parsable");
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130 }
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131 } else {
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132 set_value(false);
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133 }
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134 }
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135
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136 template <> void DCmdArgument<bool>::destroy_value() { }
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137
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138 template <> void DCmdArgument<char*>::parse_value(const char* str,
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139 size_t len, TRAPS) {
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140 if (str == NULL) {
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141 _value = NULL;
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142 } else {
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143 _value = NEW_C_HEAP_ARRAY(char, len+1);
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144 strncpy(_value, str, len);
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145 _value[len] = 0;
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146 }
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147 }
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148
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149 template <> void DCmdArgument<char*>::init_value(TRAPS) {
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150 if (has_default() && _default_string != NULL) {
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151 this->parse_value(_default_string, strlen(_default_string), THREAD);
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152 if (HAS_PENDING_EXCEPTION) {
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153 fatal("Default string must be parsable");
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154 }
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155 } else {
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156 set_value(NULL);
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157 }
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158 }
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159
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160 template <> void DCmdArgument<char*>::destroy_value() {
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161 if (_value != NULL) {
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162 FREE_C_HEAP_ARRAY(char, _value);
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163 set_value(NULL);
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164 }
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165 }
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166
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167 template <> void DCmdArgument<NanoTimeArgument>::parse_value(const char* str,
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168 size_t len, TRAPS) {
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169 if (str == NULL) {
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170 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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171 "Integer parsing error nanotime value: syntax error");
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172 }
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173
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174 int argc = sscanf(str, INT64_FORMAT , &_value._time);
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175 if (argc != 1) {
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176 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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177 "Integer parsing error nanotime value: syntax error");
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178 }
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179 size_t idx = 0;
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180 while(idx < len && isdigit(str[idx])) {
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181 idx++;
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182 }
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183 if (idx == len) {
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184 // only accept missing unit if the value is 0
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185 if (_value._time != 0) {
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186 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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187 "Integer parsing error nanotime value: unit required");
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188 } else {
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189 _value._nanotime = 0;
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190 strcpy(_value._unit, "ns");
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191 return;
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192 }
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193 } else if(len - idx > 2) {
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194 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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195 "Integer parsing error nanotime value: illegal unit");
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196 } else {
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197 strncpy(_value._unit, &str[idx], len - idx);
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198 /*Write an extra null termination. This is safe because _value._unit
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199 * is declared as char[3], and length is checked to be not larger than
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200 * two above. Also, this is necessary, since length might be 1, and the
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201 * default value already in the string is ns, which is two chars.
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202 */
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203 _value._unit[len-idx] = '\0';
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204 }
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205
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206 if (strcmp(_value._unit, "ns") == 0) {
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207 _value._nanotime = _value._time;
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208 } else if (strcmp(_value._unit, "us") == 0) {
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209 _value._nanotime = _value._time * 1000;
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210 } else if (strcmp(_value._unit, "ms") == 0) {
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211 _value._nanotime = _value._time * 1000 * 1000;
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212 } else if (strcmp(_value._unit, "s") == 0) {
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213 _value._nanotime = _value._time * 1000 * 1000 * 1000;
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214 } else if (strcmp(_value._unit, "m") == 0) {
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215 _value._nanotime = _value._time * 60 * 1000 * 1000 * 1000;
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216 } else if (strcmp(_value._unit, "h") == 0) {
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217 _value._nanotime = _value._time * 60 * 60 * 1000 * 1000 * 1000;
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218 } else if (strcmp(_value._unit, "d") == 0) {
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219 _value._nanotime = _value._time * 24 * 60 * 60 * 1000 * 1000 * 1000;
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220 } else {
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221 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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222 "Integer parsing error nanotime value: illegal unit");
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223 }
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224 }
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225
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226 template <> void DCmdArgument<NanoTimeArgument>::init_value(TRAPS) {
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227 if (has_default()) {
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228 this->parse_value(_default_string, strlen(_default_string), THREAD);
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229 if (HAS_PENDING_EXCEPTION) {
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230 fatal("Default string must be parsable");
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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231 }
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232 } else {
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233 _value._time = 0;
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234 _value._nanotime = 0;
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235 strcmp(_value._unit, "ns");
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236 }
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237 }
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238
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diff changeset
239 template <> void DCmdArgument<NanoTimeArgument>::destroy_value() { }
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240
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241 // WARNING StringArrayArgument can only be used as an option, it cannot be
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242 // used as an argument with the DCmdParser
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243
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diff changeset
244 template <> void DCmdArgument<StringArrayArgument*>::parse_value(const char* str,
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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245 size_t len, TRAPS) {
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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246 _value->add(str,len);
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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247 }
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248
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249 template <> void DCmdArgument<StringArrayArgument*>::init_value(TRAPS) {
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250 _value = new StringArrayArgument();
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251 _allow_multiple = true;
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252 if (has_default()) {
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
253 fatal("StringArrayArgument cannot have default value");
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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254 }
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
255 }
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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256
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diff changeset
257 template <> void DCmdArgument<StringArrayArgument*>::destroy_value() {
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258 if (_value != NULL) {
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259 delete _value;
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260 set_value(NULL);
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261 }
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262 }
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263
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diff changeset
264 template <> void DCmdArgument<MemorySizeArgument>::parse_value(const char* str,
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
265 size_t len, TRAPS) {
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
266 if (str == NULL) {
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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267 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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268 "Integer parsing error nanotime value: syntax error");
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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269 }
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270
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271 if (*str == '-') {
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272 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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273 "Parsing error memory size value: negative values not allowed");
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274 }
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275 int res = sscanf(str, UINT64_FORMAT "%c", &_value._val, &_value._multiplier);
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276 if (res == 2) {
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277 switch (_value._multiplier) {
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278 case 'k': case 'K':
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279 _value._size = _value._val * 1024;
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280 break;
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281 case 'm': case 'M':
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282 _value._size = _value._val * 1024 * 1024;
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283 break;
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284 case 'g': case 'G':
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285 _value._size = _value._val * 1024 * 1024 * 1024;
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286 break;
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287 default:
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288 _value._size = _value._val;
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289 _value._multiplier = ' ';
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290 //default case should be to break with no error, since user
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291 //can write size in bytes, or might have a delimiter and next arg
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292 break;
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293 }
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294 } else if (res == 1) {
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295 _value._size = _value._val;
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296 } else {
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297 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
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298 "Parsing error memory size value: invalid value");
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299 }
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300 }
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301
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302 template <> void DCmdArgument<MemorySizeArgument>::init_value(TRAPS) {
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303 if (has_default()) {
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304 this->parse_value(_default_string, strlen(_default_string), THREAD);
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diff changeset
305 if (HAS_PENDING_EXCEPTION) {
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
306 fatal("Default string must be parsable");
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
307 }
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308 } else {
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309 _value._size = 0;
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310 _value._val = 0;
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311 _value._multiplier = ' ';
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312 }
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313 }
f1cb6f9cfe21 7145243: Need additional specializations for argument parsing framework
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diff changeset
314
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315 template <> void DCmdArgument<MemorySizeArgument>::destroy_value() { }