--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/services/diagnosticArgument.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,330 @@
+/*
+ * Copyright (c) 2011, 2017, 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 "prims/jvm.h"
+#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.\n", _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.\n", _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);
+ 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\n");
+ }
+
+ int argc = sscanf(str, JLONG_FORMAT, &_value._time);
+ if (argc != 1) {
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
+ "Integer parsing error nanotime value: syntax error\n");
+ }
+ 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\n");
+ } 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\n");
+ } 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\n");
+ }
+}
+
+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(),
+ "Parsing error memory size value: syntax error, value is null\n");
+ }
+ if (*str == '-') {
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
+ "Parsing error memory size value: negative values not allowed\n");
+ }
+ 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\n");
+ }
+}
+
+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() { }