1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
144 static void init_before_ergo(void); // Called after command line parsing
145 // before VM ergonomics processing.
146 static jint init_2(void); // Called after command line parsing
147 // and VM ergonomics processing
148 static void init_globals(void) { // Called from init_globals() in init.cpp
149 init_globals_ext();
150 }
151 static void init_3(void); // Called at the end of vm init
152
153 // File names are case-insensitive on windows only
154 // Override me as needed
155 static int file_name_strcmp(const char* s1, const char* s2);
156
157 static bool getenv(const char* name, char* buffer, int len);
158 static bool have_special_privileges();
159
160 static jlong javaTimeMillis();
161 static jlong javaTimeNanos();
162 static void javaTimeNanos_info(jvmtiTimerInfo *info_ptr);
163 static void run_periodic_checks();
164
165
166 // Returns the elapsed time in seconds since the vm started.
167 static double elapsedTime();
168
169 // Returns real time in seconds since an arbitrary point
170 // in the past.
171 static bool getTimesSecs(double* process_real_time,
172 double* process_user_time,
173 double* process_system_time);
174
175 // Interface to the performance counter
176 static jlong elapsed_counter();
177 static jlong elapsed_frequency();
178
179 // The "virtual time" of a thread is the amount of time a thread has
180 // actually run. The first function indicates whether the OS supports
181 // this functionality for the current thread, and if so:
182 // * the second enables vtime tracking (if that is required).
183 // * the third tells whether vtime is enabled.
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1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
144 static void init_before_ergo(void); // Called after command line parsing
145 // before VM ergonomics processing.
146 static jint init_2(void); // Called after command line parsing
147 // and VM ergonomics processing
148 static void init_globals(void) { // Called from init_globals() in init.cpp
149 init_globals_ext();
150 }
151 static void init_3(void); // Called at the end of vm init
152
153 // File names are case-insensitive on windows only
154 // Override me as needed
155 static int file_name_strcmp(const char* s1, const char* s2);
156
157 static bool getenv(const char* name, char* buffer, int len);
158 static bool have_special_privileges();
159
160 static jlong javaTimeMillis();
161 static jlong javaTimeNanos();
162 static void javaTimeNanos_info(jvmtiTimerInfo *info_ptr);
163 static void run_periodic_checks();
164 static bool supports_monotonic_clock();
165
166
167 // Returns the elapsed time in seconds since the vm started.
168 static double elapsedTime();
169
170 // Returns real time in seconds since an arbitrary point
171 // in the past.
172 static bool getTimesSecs(double* process_real_time,
173 double* process_user_time,
174 double* process_system_time);
175
176 // Interface to the performance counter
177 static jlong elapsed_counter();
178 static jlong elapsed_frequency();
179
180 // The "virtual time" of a thread is the amount of time a thread has
181 // actually run. The first function indicates whether the OS supports
182 // this functionality for the current thread, and if so:
183 // * the second enables vtime tracking (if that is required).
184 // * the third tells whether vtime is enabled.
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