author | dcubed |
Fri, 13 Aug 2010 07:33:20 -0700 | |
changeset 6190 | 2ce445f727d8 |
parent 5547 | f4b087cbb361 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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parents:
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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# include "incls/_precompiled.incl" |
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# include "incls/_perfData.cpp.incl" |
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||
28 |
PerfDataList* PerfDataManager::_all = NULL; |
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PerfDataList* PerfDataManager::_sampled = NULL; |
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PerfDataList* PerfDataManager::_constants = NULL; |
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31 |
||
32 |
/* |
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* The jvmstat global and subsysem jvmstat counter name spaces. The top |
|
34 |
* level name spaces imply the interface stability level of the counter, |
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* which generally follows the Java package, class, and property naming |
|
36 |
* conventions. The CounterNS enumeration values should be used to index |
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* into this array. |
|
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*/ |
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39 |
const char* PerfDataManager::_name_spaces[] = { |
|
40 |
// top level name spaces |
|
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"java", // stable and supported name space |
|
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"com.sun", // unstable but supported name space |
|
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"sun", // unstable and unsupported name space |
|
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// subsystem name spaces |
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"java.gc", // Garbage Collection name spaces |
|
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"com.sun.gc", |
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"sun.gc", |
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48 |
"java.ci", // Compiler name spaces |
|
49 |
"com.sun.ci", |
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50 |
"sun.ci", |
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"java.cls", // Class Loader name spaces |
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"com.sun.cls", |
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"sun.cls", |
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"java.rt", // Runtime name spaces |
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"com.sun.rt", |
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"sun.rt", |
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"java.os", // Operating System name spaces |
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"com.sun.os", |
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"sun.os", |
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"java.threads", // Threads System name spaces |
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"com.sun.threads", |
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"sun.threads", |
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"java.property", // Java Property name spaces |
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"com.sun.property", |
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"sun.property", |
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"", |
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}; |
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||
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PerfData::PerfData(CounterNS ns, const char* name, Units u, Variability v) |
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: _name(NULL), _u(u), _v(v), _valuep(NULL), |
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_on_c_heap(false) { |
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||
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const char* prefix = PerfDataManager::ns_to_string(ns); |
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||
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_name = NEW_C_HEAP_ARRAY(char, strlen(name) + strlen(prefix) + 2); |
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assert(_name != NULL && strlen(name) != 0, "invalid name"); |
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||
78 |
if (ns == NULL_NS) { |
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// No prefix is added to counters with the NULL_NS namespace. |
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strcpy(_name, name); |
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// set the F_Supported flag based on the counter name prefix. |
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if (PerfDataManager::is_stable_supported(_name) || |
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PerfDataManager::is_unstable_supported(_name)) { |
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_flags = F_Supported; |
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} |
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else { |
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_flags = F_None; |
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} |
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} |
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else { |
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sprintf(_name, "%s.%s", prefix, name); |
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// set the F_Supported flag based on the given namespace. |
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if (PerfDataManager::is_stable_supported(ns) || |
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PerfDataManager::is_unstable_supported(ns)) { |
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_flags = F_Supported; |
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} |
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else { |
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_flags = F_None; |
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} |
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} |
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101 |
} |
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102 |
||
103 |
PerfData::~PerfData() { |
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104 |
if (_name != NULL) { |
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105 |
FREE_C_HEAP_ARRAY(char, _name); |
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106 |
} |
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107 |
if (is_on_c_heap()) { |
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FREE_C_HEAP_ARRAY(PerfDataEntry, _pdep); |
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109 |
} |
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110 |
} |
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||
112 |
void PerfData::create_entry(BasicType dtype, size_t dsize, size_t vlen) { |
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113 |
||
114 |
size_t dlen = vlen==0 ? 1 : vlen; |
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115 |
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size_t namelen = strlen(name()) + 1; // include null terminator |
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size_t size = sizeof(PerfDataEntry) + namelen; |
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size_t pad_length = ((size % dsize) == 0) ? 0 : dsize - (size % dsize); |
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size += pad_length; |
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120 |
size_t data_start = size; |
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size += (dsize * dlen); |
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122 |
||
123 |
// align size to assure allocation in units of 8 bytes |
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124 |
int align = sizeof(jlong) - 1; |
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125 |
size = ((size + align) & ~align); |
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126 |
char* psmp = PerfMemory::alloc(size); |
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127 |
||
128 |
if (psmp == NULL) { |
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129 |
// out of PerfMemory memory resources. allocate on the C heap |
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// to avoid vm termination. |
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psmp = NEW_C_HEAP_ARRAY(char, size); |
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_on_c_heap = true; |
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} |
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134 |
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// compute the addresses for the name and data |
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char* cname = psmp + sizeof(PerfDataEntry); |
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137 |
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// data is in the last dsize*dlen bytes of the entry |
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void* valuep = (void*) (psmp + data_start); |
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140 |
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assert(is_on_c_heap() || PerfMemory::contains(cname), "just checking"); |
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assert(is_on_c_heap() || PerfMemory::contains((char*)valuep), "just checking"); |
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143 |
||
144 |
// copy the name, including null terminator, into PerfData memory |
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strcpy(cname, name()); |
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146 |
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147 |
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148 |
// set the header values in PerfData memory |
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149 |
PerfDataEntry* pdep = (PerfDataEntry*)psmp; |
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pdep->entry_length = (jint)size; |
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pdep->name_offset = (jint) ((uintptr_t) cname - (uintptr_t) psmp); |
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pdep->vector_length = (jint)vlen; |
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pdep->data_type = (jbyte) type2char(dtype); |
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pdep->data_units = units(); |
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pdep->data_variability = variability(); |
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pdep->flags = (jbyte)flags(); |
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157 |
pdep->data_offset = (jint) data_start; |
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158 |
||
159 |
if (PerfTraceDataCreation) { |
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160 |
tty->print("name = %s, dtype = %d, variability = %d," |
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" units = %d, dsize = %d, vlen = %d," |
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162 |
" pad_length = %d, size = %d, on_c_heap = %s," |
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163 |
" address = " INTPTR_FORMAT "," |
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" data address = " INTPTR_FORMAT "\n", |
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cname, dtype, variability(), |
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units(), dsize, vlen, |
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167 |
pad_length, size, is_on_c_heap() ? "TRUE":"FALSE", |
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168 |
psmp, valuep); |
|
169 |
} |
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170 |
||
171 |
// record the start of the entry and the location of the data field. |
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172 |
_pdep = pdep; |
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173 |
_valuep = valuep; |
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174 |
||
175 |
// mark the PerfData memory region as having been updated. |
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PerfMemory::mark_updated(); |
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177 |
} |
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178 |
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179 |
PerfLong::PerfLong(CounterNS ns, const char* namep, Units u, Variability v) |
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180 |
: PerfData(ns, namep, u, v) { |
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181 |
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182 |
create_entry(T_LONG, sizeof(jlong)); |
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183 |
} |
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184 |
||
185 |
int PerfLong::format(char* buffer, int length) { |
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186 |
return jio_snprintf(buffer, length,"%lld", *(jlong*)_valuep); |
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187 |
} |
|
188 |
||
189 |
PerfLongVariant::PerfLongVariant(CounterNS ns, const char* namep, Units u, |
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190 |
Variability v, jlong* sampled) |
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191 |
: PerfLong(ns, namep, u, v), |
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192 |
_sampled(sampled), _sample_helper(NULL) { |
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193 |
||
194 |
sample(); |
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195 |
} |
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196 |
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197 |
PerfLongVariant::PerfLongVariant(CounterNS ns, const char* namep, Units u, |
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198 |
Variability v, PerfLongSampleHelper* helper) |
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199 |
: PerfLong(ns, namep, u, v), |
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200 |
_sampled(NULL), _sample_helper(helper) { |
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201 |
||
202 |
sample(); |
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203 |
} |
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204 |
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205 |
void PerfLongVariant::sample() { |
|
206 |
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207 |
assert(_sample_helper != NULL || _sampled != NULL, "unexpected state"); |
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208 |
||
209 |
if (_sample_helper != NULL) { |
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210 |
*(jlong*)_valuep = _sample_helper->take_sample(); |
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211 |
} |
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212 |
else if (_sampled != NULL) { |
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213 |
*(jlong*)_valuep = *_sampled; |
|
214 |
} |
|
215 |
} |
|
216 |
||
217 |
PerfByteArray::PerfByteArray(CounterNS ns, const char* namep, Units u, |
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218 |
Variability v, jint length) |
|
219 |
: PerfData(ns, namep, u, v), _length(length) { |
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220 |
||
221 |
create_entry(T_BYTE, sizeof(jbyte), (size_t)_length); |
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222 |
} |
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223 |
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224 |
void PerfString::set_string(const char* s2) { |
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225 |
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226 |
// copy n bytes of the string, assuring the null string is |
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227 |
// copied if s2 == NULL. |
|
228 |
strncpy((char *)_valuep, s2 == NULL ? "" : s2, _length); |
|
229 |
||
230 |
// assure the string is null terminated when strlen(s2) >= _length |
|
231 |
((char*)_valuep)[_length-1] = '\0'; |
|
232 |
} |
|
233 |
||
234 |
int PerfString::format(char* buffer, int length) { |
|
235 |
return jio_snprintf(buffer, length, "%s", (char*)_valuep); |
|
236 |
} |
|
237 |
||
238 |
PerfStringConstant::PerfStringConstant(CounterNS ns, const char* namep, |
|
239 |
const char* initial_value) |
|
240 |
: PerfString(ns, namep, V_Constant, |
|
241 |
initial_value == NULL ? 1 : |
|
242 |
MIN2((jint)(strlen((char*)initial_value)+1), |
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243 |
(jint)(PerfMaxStringConstLength+1)), |
|
244 |
initial_value) { |
|
245 |
||
246 |
if (PrintMiscellaneous && Verbose) { |
|
247 |
if (is_valid() && initial_value != NULL && |
|
248 |
((jint)strlen(initial_value) > (jint)PerfMaxStringConstLength)) { |
|
249 |
||
250 |
warning("Truncating PerfStringConstant: name = %s," |
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251 |
" length = " INT32_FORMAT "," |
|
252 |
" PerfMaxStringConstLength = " INT32_FORMAT "\n", |
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253 |
namep, |
|
254 |
(jint)strlen(initial_value), |
|
255 |
(jint)PerfMaxStringConstLength); |
|
256 |
} |
|
257 |
} |
|
258 |
} |
|
259 |
||
260 |
||
261 |
||
262 |
||
263 |
||
264 |
||
265 |
void PerfDataManager::destroy() { |
|
266 |
||
267 |
if (_all == NULL) |
|
268 |
// destroy already called, or initialization never happened |
|
269 |
return; |
|
270 |
||
271 |
for (int index = 0; index < _all->length(); index++) { |
|
272 |
PerfData* p = _all->at(index); |
|
273 |
delete p; |
|
274 |
} |
|
275 |
||
276 |
delete(_all); |
|
277 |
delete(_sampled); |
|
278 |
delete(_constants); |
|
279 |
||
280 |
_all = NULL; |
|
281 |
_sampled = NULL; |
|
282 |
_constants = NULL; |
|
283 |
} |
|
284 |
||
285 |
void PerfDataManager::add_item(PerfData* p, bool sampled) { |
|
286 |
||
287 |
MutexLocker ml(PerfDataManager_lock); |
|
288 |
||
289 |
if (_all == NULL) { |
|
290 |
_all = new PerfDataList(100); |
|
291 |
} |
|
292 |
||
293 |
assert(!_all->contains(p->name()), "duplicate name added"); |
|
294 |
||
295 |
// add to the list of all perf data items |
|
296 |
_all->append(p); |
|
297 |
||
298 |
if (p->variability() == PerfData::V_Constant) { |
|
299 |
if (_constants == NULL) { |
|
300 |
_constants = new PerfDataList(25); |
|
301 |
} |
|
302 |
_constants->append(p); |
|
303 |
return; |
|
304 |
} |
|
305 |
||
306 |
if (sampled) { |
|
307 |
if (_sampled == NULL) { |
|
308 |
_sampled = new PerfDataList(25); |
|
309 |
} |
|
310 |
_sampled->append(p); |
|
311 |
} |
|
312 |
} |
|
313 |
||
314 |
PerfDataList* PerfDataManager::all() { |
|
315 |
||
316 |
MutexLocker ml(PerfDataManager_lock); |
|
317 |
||
318 |
if (_all == NULL) |
|
319 |
return NULL; |
|
320 |
||
321 |
PerfDataList* clone = _all->clone(); |
|
322 |
return clone; |
|
323 |
} |
|
324 |
||
325 |
PerfDataList* PerfDataManager::sampled() { |
|
326 |
||
327 |
MutexLocker ml(PerfDataManager_lock); |
|
328 |
||
329 |
if (_sampled == NULL) |
|
330 |
return NULL; |
|
331 |
||
332 |
PerfDataList* clone = _sampled->clone(); |
|
333 |
return clone; |
|
334 |
} |
|
335 |
||
336 |
PerfDataList* PerfDataManager::constants() { |
|
337 |
||
338 |
MutexLocker ml(PerfDataManager_lock); |
|
339 |
||
340 |
if (_constants == NULL) |
|
341 |
return NULL; |
|
342 |
||
343 |
PerfDataList* clone = _constants->clone(); |
|
344 |
return clone; |
|
345 |
} |
|
346 |
||
347 |
char* PerfDataManager::counter_name(const char* ns, const char* name) { |
|
348 |
assert(ns != NULL, "ns string required"); |
|
349 |
assert(name != NULL, "name string required"); |
|
350 |
||
351 |
size_t len = strlen(ns) + strlen(name) + 2; |
|
352 |
char* result = NEW_RESOURCE_ARRAY(char, len); |
|
353 |
sprintf(result, "%s.%s", ns, name); |
|
354 |
return result; |
|
355 |
} |
|
356 |
||
357 |
char* PerfDataManager::name_space(const char* ns, const char* sub, |
|
358 |
int instance) { |
|
359 |
char intbuf[40]; |
|
360 |
jio_snprintf(intbuf, 40, UINT32_FORMAT, instance); |
|
361 |
return name_space(ns, name_space(sub, intbuf)); |
|
362 |
} |
|
363 |
||
364 |
char *PerfDataManager::name_space(const char* ns, int instance) { |
|
365 |
char intbuf[40]; |
|
366 |
jio_snprintf(intbuf, 40, UINT32_FORMAT, instance); |
|
367 |
return name_space(ns, intbuf); |
|
368 |
} |
|
369 |
||
370 |
PerfStringConstant* PerfDataManager::create_string_constant(CounterNS ns, |
|
371 |
const char* name, |
|
372 |
const char* s, |
|
373 |
TRAPS) { |
|
374 |
||
375 |
PerfStringConstant* p = new PerfStringConstant(ns, name, s); |
|
376 |
||
377 |
if (!p->is_valid()) { |
|
378 |
// allocation of native resources failed. |
|
379 |
delete p; |
|
380 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
381 |
} |
|
382 |
||
383 |
add_item(p, false); |
|
384 |
||
385 |
return p; |
|
386 |
} |
|
387 |
||
388 |
PerfLongConstant* PerfDataManager::create_long_constant(CounterNS ns, |
|
389 |
const char* name, |
|
390 |
PerfData::Units u, |
|
391 |
jlong val, TRAPS) { |
|
392 |
||
393 |
PerfLongConstant* p = new PerfLongConstant(ns, name, u, val); |
|
394 |
||
395 |
if (!p->is_valid()) { |
|
396 |
// allocation of native resources failed. |
|
397 |
delete p; |
|
398 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
399 |
} |
|
400 |
||
401 |
add_item(p, false); |
|
402 |
||
403 |
return p; |
|
404 |
} |
|
405 |
||
406 |
PerfStringVariable* PerfDataManager::create_string_variable(CounterNS ns, |
|
407 |
const char* name, |
|
408 |
jint max_length, |
|
409 |
const char* s, |
|
410 |
TRAPS) { |
|
411 |
||
412 |
if (max_length == 0 && s != NULL) max_length = (jint)strlen(s); |
|
413 |
||
414 |
assert(max_length != 0, "PerfStringVariable with length 0"); |
|
415 |
||
416 |
PerfStringVariable* p = new PerfStringVariable(ns, name, max_length, s); |
|
417 |
||
418 |
if (!p->is_valid()) { |
|
419 |
// allocation of native resources failed. |
|
420 |
delete p; |
|
421 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
422 |
} |
|
423 |
||
424 |
add_item(p, false); |
|
425 |
||
426 |
return p; |
|
427 |
} |
|
428 |
||
429 |
PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns, |
|
430 |
const char* name, |
|
431 |
PerfData::Units u, |
|
432 |
jlong ival, TRAPS) { |
|
433 |
||
434 |
PerfLongVariable* p = new PerfLongVariable(ns, name, u, ival); |
|
435 |
||
436 |
if (!p->is_valid()) { |
|
437 |
// allocation of native resources failed. |
|
438 |
delete p; |
|
439 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
440 |
} |
|
441 |
||
442 |
add_item(p, false); |
|
443 |
||
444 |
return p; |
|
445 |
} |
|
446 |
||
447 |
PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns, |
|
448 |
const char* name, |
|
449 |
PerfData::Units u, |
|
450 |
jlong* sp, TRAPS) { |
|
451 |
||
452 |
// Sampled counters not supported if UsePerfData is false |
|
453 |
if (!UsePerfData) return NULL; |
|
454 |
||
455 |
PerfLongVariable* p = new PerfLongVariable(ns, name, u, sp); |
|
456 |
||
457 |
if (!p->is_valid()) { |
|
458 |
// allocation of native resources failed. |
|
459 |
delete p; |
|
460 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
461 |
} |
|
462 |
||
463 |
add_item(p, true); |
|
464 |
||
465 |
return p; |
|
466 |
} |
|
467 |
||
468 |
PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns, |
|
469 |
const char* name, |
|
470 |
PerfData::Units u, |
|
471 |
PerfSampleHelper* sh, |
|
472 |
TRAPS) { |
|
473 |
||
474 |
// Sampled counters not supported if UsePerfData is false |
|
475 |
if (!UsePerfData) return NULL; |
|
476 |
||
477 |
PerfLongVariable* p = new PerfLongVariable(ns, name, u, sh); |
|
478 |
||
479 |
if (!p->is_valid()) { |
|
480 |
// allocation of native resources failed. |
|
481 |
delete p; |
|
482 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
483 |
} |
|
484 |
||
485 |
add_item(p, true); |
|
486 |
||
487 |
return p; |
|
488 |
} |
|
489 |
||
490 |
PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns, |
|
491 |
const char* name, |
|
492 |
PerfData::Units u, |
|
493 |
jlong ival, TRAPS) { |
|
494 |
||
495 |
PerfLongCounter* p = new PerfLongCounter(ns, name, u, ival); |
|
496 |
||
497 |
if (!p->is_valid()) { |
|
498 |
// allocation of native resources failed. |
|
499 |
delete p; |
|
500 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
501 |
} |
|
502 |
||
503 |
add_item(p, false); |
|
504 |
||
505 |
return p; |
|
506 |
} |
|
507 |
||
508 |
PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns, |
|
509 |
const char* name, |
|
510 |
PerfData::Units u, |
|
511 |
jlong* sp, TRAPS) { |
|
512 |
||
513 |
// Sampled counters not supported if UsePerfData is false |
|
514 |
if (!UsePerfData) return NULL; |
|
515 |
||
516 |
PerfLongCounter* p = new PerfLongCounter(ns, name, u, sp); |
|
517 |
||
518 |
if (!p->is_valid()) { |
|
519 |
// allocation of native resources failed. |
|
520 |
delete p; |
|
521 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
522 |
} |
|
523 |
||
524 |
add_item(p, true); |
|
525 |
||
526 |
return p; |
|
527 |
} |
|
528 |
||
529 |
PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns, |
|
530 |
const char* name, |
|
531 |
PerfData::Units u, |
|
532 |
PerfSampleHelper* sh, |
|
533 |
TRAPS) { |
|
534 |
||
535 |
// Sampled counters not supported if UsePerfData is false |
|
536 |
if (!UsePerfData) return NULL; |
|
537 |
||
538 |
PerfLongCounter* p = new PerfLongCounter(ns, name, u, sh); |
|
539 |
||
540 |
if (!p->is_valid()) { |
|
541 |
// allocation of native resources failed. |
|
542 |
delete p; |
|
543 |
THROW_0(vmSymbols::java_lang_OutOfMemoryError()); |
|
544 |
} |
|
545 |
||
546 |
add_item(p, true); |
|
547 |
||
548 |
return p; |
|
549 |
} |
|
550 |
||
551 |
PerfDataList::PerfDataList(int length) { |
|
552 |
||
553 |
_set = new(ResourceObj::C_HEAP) PerfDataArray(length, true); |
|
554 |
} |
|
555 |
||
556 |
PerfDataList::PerfDataList(PerfDataList* p) { |
|
557 |
||
558 |
_set = new(ResourceObj::C_HEAP) PerfDataArray(p->length(), true); |
|
559 |
||
560 |
_set->appendAll(p->get_impl()); |
|
561 |
} |
|
562 |
||
563 |
PerfDataList::~PerfDataList() { |
|
564 |
||
565 |
delete _set; |
|
566 |
||
567 |
} |
|
568 |
||
569 |
bool PerfDataList::by_name(void* name, PerfData* pd) { |
|
570 |
||
571 |
if (pd == NULL) |
|
572 |
return false; |
|
573 |
||
574 |
return strcmp((const char*)name, pd->name()) == 0; |
|
575 |
} |
|
576 |
||
577 |
PerfData* PerfDataList::find_by_name(const char* name) { |
|
578 |
||
579 |
int i = _set->find((void*)name, PerfDataList::by_name); |
|
580 |
||
581 |
if (i >= 0 && i <= _set->length()) |
|
582 |
return _set->at(i); |
|
583 |
else |
|
584 |
return NULL; |
|
585 |
} |
|
586 |
||
587 |
PerfDataList* PerfDataList::clone() { |
|
588 |
||
589 |
PerfDataList* copy = new PerfDataList(this); |
|
590 |
||
591 |
assert(copy != NULL, "just checking"); |
|
592 |
||
593 |
return copy; |
|
594 |
} |