Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 2012, 2019, 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 "jfr/jfrEvents.hpp"

 #include "jfr/periodic/jfrNetworkUtilization.hpp"

 #include "jfr/periodic/jfrOSInterface.hpp"

 #include "memory/allocation.inline.hpp"

 #include "memory/resourceArea.hpp"

 #include "runtime/os.hpp"

 #include "runtime/os_perf.hpp"

 #include "utilities/ostream.hpp"

 #include <stdlib.h> // for environment variables

 #ifdef __APPLE__

 #include <crt_externs.h>

 #define environ (*_NSGetEnviron())

 #endif

 #ifndef environ

 extern char** environ;

 #endif

 static JfrOSInterface* _instance = NULL;

 JfrOSInterface& JfrOSInterface::instance() {

   return *_instance;

 }

 JfrOSInterface* JfrOSInterface::create() {

   assert(_instance == NULL, "invariant");

   _instance = new JfrOSInterface();

   return _instance;

 }

 void JfrOSInterface::destroy() {

   JfrNetworkUtilization::destroy();

   if (_instance != NULL) {

     delete _instance;

     _instance = NULL;

   }

 }

 class JfrOSInterface::JfrOSInterfaceImpl : public JfrCHeapObj {

   friend class JfrOSInterface;

  private:

   CPUInformationInterface* _cpu_info_interface;

   CPUPerformanceInterface* _cpu_perf_interface;

   SystemProcessInterface*  _system_process_interface;

   NetworkPerformanceInterface* _network_performance_interface;

   JfrOSInterfaceImpl();

   bool initialize();

   ~JfrOSInterfaceImpl();

   // cpu info

   int cpu_information(CPUInformation& cpu_info);

   int cpu_load(int which_logical_cpu, double* cpu_load);

   int context_switch_rate(double* rate);

   int cpu_load_total_process(double* cpu_load);

   int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotal);

   // os information

   int os_version(char** os_version) const;

   // environment information

   void generate_environment_variables_events();

    // system processes information

   int system_processes(SystemProcess** system_processes, int* no_of_sys_processes);

   int network_utilization(NetworkInterface** network_interfaces) const;

 };

 JfrOSInterface::JfrOSInterfaceImpl::JfrOSInterfaceImpl() : _cpu_info_interface(NULL),

                                                            _cpu_perf_interface(NULL),

                                                            _system_process_interface(NULL) {}

 bool JfrOSInterface::JfrOSInterfaceImpl::initialize() {

   _cpu_info_interface = new CPUInformationInterface();

   if (!(_cpu_info_interface != NULL && _cpu_info_interface->initialize())) {

     return false;

   }

   _cpu_perf_interface = new CPUPerformanceInterface();

   if (!(_cpu_perf_interface != NULL && _cpu_perf_interface->initialize())) {

     return false;

   }

   _system_process_interface = new SystemProcessInterface();

   if (!(_system_process_interface != NULL && _system_process_interface->initialize())) {

     return false;

   }

   _network_performance_interface = new NetworkPerformanceInterface();

   return _network_performance_interface != NULL && _network_performance_interface->initialize();

 }

 JfrOSInterface::JfrOSInterfaceImpl::~JfrOSInterfaceImpl(void) {

   if (_cpu_info_interface != NULL) {

     delete _cpu_info_interface;

     _cpu_info_interface = NULL;

   }

   if (_cpu_perf_interface != NULL) {

     delete _cpu_perf_interface;

     _cpu_perf_interface = NULL;

   }

   if (_system_process_interface != NULL) {

     delete _system_process_interface;

     _system_process_interface = NULL;

   }

   if (_network_performance_interface != NULL) {

     delete _network_performance_interface;

     _network_performance_interface = NULL;

   }

 }

 int JfrOSInterface::JfrOSInterfaceImpl::cpu_load(int which_logical_cpu, double* cpu_load) {

   return _cpu_perf_interface->cpu_load(which_logical_cpu, cpu_load);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::context_switch_rate(double* rate) {

   return _cpu_perf_interface->context_switch_rate(rate);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::cpu_load_total_process(double* cpu_load) {

   return _cpu_perf_interface->cpu_load_total_process(cpu_load);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::cpu_loads_process(double* pjvmUserLoad,

                                                           double* pjvmKernelLoad,

                                                           double* psystemTotal) {

   return _cpu_perf_interface->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotal);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::cpu_information(CPUInformation& cpu_info) {

   return _cpu_info_interface->cpu_information(cpu_info);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) {

   assert(system_processes != NULL, "system_processes pointer is NULL!");

   assert(no_of_sys_processes != NULL, "no_of_sys_processes pointer is NULL!");

   return _system_process_interface->system_processes(system_processes, no_of_sys_processes);

 }

 int JfrOSInterface::JfrOSInterfaceImpl::network_utilization(NetworkInterface** network_interfaces) const {

   return _network_performance_interface->network_utilization(network_interfaces);

 }

 // assigned char* is RESOURCE_HEAP_ALLOCATED

 // caller need to ensure proper ResourceMark placement.

 int JfrOSInterface::JfrOSInterfaceImpl::os_version(char** os_version) const {

   assert(os_version != NULL, "os_version pointer is NULL!");

   stringStream os_ver_info;

   os::print_os_info_brief(&os_ver_info);

   *os_version = os_ver_info.as_string();

   return OS_OK;

 }

 JfrOSInterface::JfrOSInterface() {

   _impl = NULL;

 }

 bool JfrOSInterface::initialize() {

   _impl = new JfrOSInterface::JfrOSInterfaceImpl();

   return _impl != NULL && _impl->initialize();

 }

 JfrOSInterface::~JfrOSInterface() {

   if (_impl != NULL) {

     delete _impl;

     _impl = NULL;

   }

 }

 int JfrOSInterface::cpu_information(CPUInformation& cpu_info) {

   return instance()._impl->cpu_information(cpu_info);

 }

 int JfrOSInterface::cpu_load(int which_logical_cpu, double* cpu_load) {

   return instance()._impl->cpu_load(which_logical_cpu, cpu_load);

 }

 int JfrOSInterface::context_switch_rate(double* rate) {

   return instance()._impl->context_switch_rate(rate);

 }

 int JfrOSInterface::cpu_load_total_process(double* cpu_load) {

   return instance()._impl->cpu_load_total_process(cpu_load);

 }

 int JfrOSInterface::cpu_loads_process(double* jvm_user_load, double* jvm_kernel_load, double* system_total_load){

   return instance()._impl->cpu_loads_process(jvm_user_load, jvm_kernel_load, system_total_load);

 }

 int JfrOSInterface::os_version(char** os_version) {

   return instance()._impl->os_version(os_version);

 }

 int JfrOSInterface::generate_initial_environment_variable_events() {

   if (environ == NULL) {

     return OS_ERR;

   }

   if (EventInitialEnvironmentVariable::is_enabled()) {

     // One time stamp for all events, so they can be grouped together

     JfrTicks time_stamp = JfrTicks::now();

     for (char** p = environ; *p != NULL; p++) {

       char* variable = *p;

       char* equal_sign = strchr(variable, '=');

       if (equal_sign != NULL) {

         // Extract key/value

         ResourceMark rm;

         ptrdiff_t key_length = equal_sign - variable;

         char* key = NEW_RESOURCE_ARRAY(char, key_length + 1);

         char* value = equal_sign + 1;

         strncpy(key, variable, key_length);

         key[key_length] = '\0';

         EventInitialEnvironmentVariable event(UNTIMED);

         event.set_endtime(time_stamp);

         event.set_key(key);

         event.set_value(value);

         event.commit();

       }

     }

   }

   return OS_OK;

 }

 int JfrOSInterface::system_processes(SystemProcess** sys_processes, int* no_of_sys_processes) {

   return instance()._impl->system_processes(sys_processes, no_of_sys_processes);

 }

 int JfrOSInterface::network_utilization(NetworkInterface** network_interfaces) {

   return instance()._impl->network_utilization(network_interfaces);

 }