jdk8-mips64-public/hotspot: src/share/vm/services/diagnosticArgument.cpp@73d689add964 (annotated)

src/share/vm/services/diagnosticArgument.cpp@73d689add964 (annotated)

src/share/vm/services/diagnosticArgument.cpp

Thu, 27 Dec 2018 11:43:33 +0800

author: aoqi
date: Thu, 27 Dec 2018 11:43:33 +0800
changeset 9448: 73d689add964
parent 9327: f96fcd9e1e1b
parent 6876: 710a3c8b516e
child 9931: fd44df5e3bc3
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/thread.hpp"
 #include "services/diagnosticArgument.hpp"
 void GenDCmdArgument::read_value(const char* str, size_t len, TRAPS) {
   /* NOTE:Some argument types doesn't require a value,
    * for instance boolean arguments: "enableFeatureX". is
    * equivalent to "enableFeatureX=true". In these cases,
    * str will be null. This is perfectly valid.
    * All argument types must perform null checks on str.
    */
   if (is_set() && !allow_multiple()) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
             "Duplicates in diagnostic command arguments\n");
   }
   parse_value(str, len, CHECK);
   set_is_set(true);
 }
 void GenDCmdArgument::to_string(jlong l, char* buf, size_t len) {
   jio_snprintf(buf, len, INT64_FORMAT, l);
 }
 void GenDCmdArgument::to_string(bool b, char* buf, size_t len) {
   jio_snprintf(buf, len, b ? "true" : "false");
 }
 void GenDCmdArgument::to_string(NanoTimeArgument n, char* buf, size_t len) {
   jio_snprintf(buf, len, INT64_FORMAT, n._nanotime);
 }
 void GenDCmdArgument::to_string(MemorySizeArgument m, char* buf, size_t len) {
   jio_snprintf(buf, len, INT64_FORMAT, m._size);
 }
 void GenDCmdArgument::to_string(char* c, char* buf, size_t len) {
   jio_snprintf(buf, len, "%s", (c != NULL) ? c : "");
 }
 void GenDCmdArgument::to_string(StringArrayArgument* f, char* buf, size_t len) {
   int length = f->array()->length();
   size_t written = 0;
   buf[0] = 0;
   for (int i = 0; i < length; i++) {
     char* next_str = f->array()->at(i);
     size_t next_size = strlen(next_str);
     //Check if there's room left to write next element
     if (written + next_size > len) {
       return;
     }
     //Actually write element
     strcat(buf, next_str);
     written += next_size;
     //Check if there's room left for the comma
     if (i < length-1 && len - written > 0) {
       strcat(buf, ",");
     }
   }
 }
 template <> void DCmdArgument<jlong>::parse_value(const char* str,
                                                   size_t len, TRAPS) {
   int scanned = -1;
   if (str == NULL
       || sscanf(str, JLONG_FORMAT "%n", &_value, &scanned) != 1
       || (size_t)scanned != len)
   {
     ResourceMark rm;
     char* buf = NEW_RESOURCE_ARRAY(char, len + 1);
     strncpy(buf, str, len);
     buf[len] = '\0';
     Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_IllegalArgumentException(),
       "Integer parsing error in command argument '%s'. Could not parse: %s.", _name, buf);
   }
 }
 template <> void DCmdArgument<jlong>::init_value(TRAPS) {
   if (has_default()) {
     this->parse_value(_default_string, strlen(_default_string), THREAD);
     if (HAS_PENDING_EXCEPTION) {
       fatal("Default string must be parseable");
     }
   } else {
     set_value(0);
   }
 }
 template <> void DCmdArgument<jlong>::destroy_value() { }
 template <> void DCmdArgument<bool>::parse_value(const char* str,
                                                  size_t len, TRAPS) {
   // len is the length of the current token starting at str
   if (len == 0) {
     set_value(true);
   } else {
     if (len == strlen("true") && strncasecmp(str, "true", len) == 0) {
        set_value(true);
     } else if (len == strlen("false") && strncasecmp(str, "false", len) == 0) {
        set_value(false);
     } else {
       ResourceMark rm;
       char* buf = NEW_RESOURCE_ARRAY(char, len + 1);
       strncpy(buf, str, len);
       buf[len] = '\0';
       Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_IllegalArgumentException(),
         "Boolean parsing error in command argument '%s'. Could not parse: %s.", _name, buf);
     }
   }
 }
 template <> void DCmdArgument<bool>::init_value(TRAPS) {
   if (has_default()) {
     this->parse_value(_default_string, strlen(_default_string), THREAD);
     if (HAS_PENDING_EXCEPTION) {
       fatal("Default string must be parsable");
     }
   } else {
     set_value(false);
   }
 }
 template <> void DCmdArgument<bool>::destroy_value() { }
 template <> void DCmdArgument<char*>::parse_value(const char* str,
                                                   size_t len, TRAPS) {
   if (str == NULL) {
     _value = NULL;
   } else {
     _value = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
     strncpy(_value, str, len);
     _value[len] = 0;
   }
 }
 template <> void DCmdArgument<char*>::init_value(TRAPS) {
   if (has_default() && _default_string != NULL) {
     this->parse_value(_default_string, strlen(_default_string), THREAD);
     if (HAS_PENDING_EXCEPTION) {
      fatal("Default string must be parsable");
     }
   } else {
     set_value(NULL);
   }
 }
 template <> void DCmdArgument<char*>::destroy_value() {
   if (_value != NULL) {
     FREE_C_HEAP_ARRAY(char, _value, mtInternal);
     set_value(NULL);
   }
 }
 template <> void DCmdArgument<NanoTimeArgument>::parse_value(const char* str,
                                                  size_t len, TRAPS) {
   if (str == NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Integer parsing error nanotime value: syntax error, value is null");
   }
   int argc = sscanf(str, JLONG_FORMAT, &_value._time);
   if (argc != 1) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Integer parsing error nanotime value: syntax error");
   }
   size_t idx = 0;
   while(idx < len && isdigit(str[idx])) {
     idx++;
   }
   if (idx == len) {
     // only accept missing unit if the value is 0
     if (_value._time != 0) {
       THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
                 "Integer parsing error nanotime value: unit required");
     } else {
       _value._nanotime = 0;
       strcpy(_value._unit, "ns");
       return;
     }
   } else if(len - idx > 2) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Integer parsing error nanotime value: illegal unit");
   } else {
     strncpy(_value._unit, &str[idx], len - idx);
     /*Write an extra null termination. This is safe because _value._unit
      * is declared as char[3], and length is checked to be not larger than
      * two above. Also, this is necessary, since length might be 1, and the
      * default value already in the string is ns, which is two chars.
      */
     _value._unit[len-idx] = '\0';
   }
   if (strcmp(_value._unit, "ns") == 0) {
     _value._nanotime = _value._time;
   } else if (strcmp(_value._unit, "us") == 0) {
     _value._nanotime = _value._time * 1000;
   } else if (strcmp(_value._unit, "ms") == 0) {
     _value._nanotime = _value._time * 1000 * 1000;
   } else if (strcmp(_value._unit, "s") == 0) {
     _value._nanotime = _value._time * 1000 * 1000 * 1000;
   } else if (strcmp(_value._unit, "m") == 0) {
     _value._nanotime = _value._time * 60 * 1000 * 1000 * 1000;
   } else if (strcmp(_value._unit, "h") == 0) {
     _value._nanotime = _value._time * 60 * 60 * 1000 * 1000 * 1000;
   } else if (strcmp(_value._unit, "d") == 0) {
     _value._nanotime = _value._time * 24 * 60 * 60 * 1000 * 1000 * 1000;
   } else {
      THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
                "Integer parsing error nanotime value: illegal unit");
   }
 }
 template <> void DCmdArgument<NanoTimeArgument>::init_value(TRAPS) {
   if (has_default()) {
     this->parse_value(_default_string, strlen(_default_string), THREAD);
     if (HAS_PENDING_EXCEPTION) {
       fatal("Default string must be parsable");
     }
   } else {
     _value._time = 0;
     _value._nanotime = 0;
     strcpy(_value._unit, "ns");
   }
 }
 template <> void DCmdArgument<NanoTimeArgument>::destroy_value() { }
 // WARNING StringArrayArgument can only be used as an option, it cannot be
 // used as an argument with the DCmdParser
 template <> void DCmdArgument<StringArrayArgument*>::parse_value(const char* str,
                                                   size_t len, TRAPS) {
   _value->add(str,len);
 }
 template <> void DCmdArgument<StringArrayArgument*>::init_value(TRAPS) {
   _value = new StringArrayArgument();
   _allow_multiple = true;
   if (has_default()) {
     fatal("StringArrayArgument cannot have default value");
   }
 }
 template <> void DCmdArgument<StringArrayArgument*>::destroy_value() {
   if (_value != NULL) {
     delete _value;
     set_value(NULL);
   }
 }
 template <> void DCmdArgument<MemorySizeArgument>::parse_value(const char* str,
                                                   size_t len, TRAPS) {
   if (str == NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Integer parsing error nanotime value: syntax error");
   }
   if (*str == '-') {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
                "Parsing error memory size value: negative values not allowed");
   }
   int res = sscanf(str, UINT64_FORMAT "%c", &_value._val, &_value._multiplier);
   if (res == 2) {
      switch (_value._multiplier) {
       case 'k': case 'K':
          _value._size = _value._val * 1024;
          break;
       case 'm': case 'M':
          _value._size = _value._val * 1024 * 1024;
          break;
       case 'g': case 'G':
          _value._size = _value._val * 1024 * 1024 * 1024;
          break;
        default:
          _value._size = _value._val;
          _value._multiplier = ' ';
          //default case should be to break with no error, since user
          //can write size in bytes, or might have a delimiter and next arg
          break;
      }
    } else if (res == 1) {
      _value._size = _value._val;
    } else {
      THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
                "Parsing error memory size value: invalid value");
    }
 }
 template <> void DCmdArgument<MemorySizeArgument>::init_value(TRAPS) {
   if (has_default()) {
     this->parse_value(_default_string, strlen(_default_string), THREAD);
     if (HAS_PENDING_EXCEPTION) {
       fatal("Default string must be parsable");
     }
   } else {
     _value._size = 0;
     _value._val = 0;
     _value._multiplier = ' ';
   }
 }
 template <> void DCmdArgument<MemorySizeArgument>::destroy_value() { }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/services/diagnosticArgument.cpp@73d689add964 (annotated)

src/share/vm/services/diagnosticArgument.cpp