147 static bool pd_unmap_memory(char *addr, size_t bytes);
148 static void pd_free_memory(char *addr, size_t bytes, size_t alignment_hint);
149 static void pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint);
150
151 static size_t page_size_for_region(size_t region_size, size_t min_pages, bool must_be_aligned);
152
153 public:
154 static void init(void); // Called before command line parsing
155 static void init_before_ergo(void); // Called after command line parsing
156 // before VM ergonomics processing.
157 static jint init_2(void); // Called after command line parsing
158 // and VM ergonomics processing
159 static void init_globals(void) { // Called from init_globals() in init.cpp
160 init_globals_ext();
161 }
162
163 // File names are case-insensitive on windows only
164 // Override me as needed
165 static int file_name_strcmp(const char* s1, const char* s2);
166
167 // unset environment variable
168 static bool unsetenv(const char* name);
169
170 static bool have_special_privileges();
171
172 static jlong javaTimeMillis();
173 static jlong javaTimeNanos();
174 static void javaTimeNanos_info(jvmtiTimerInfo *info_ptr);
175 static void javaTimeSystemUTC(jlong &seconds, jlong &nanos);
176 static void run_periodic_checks();
177 static bool supports_monotonic_clock();
178
179 // Returns the elapsed time in seconds since the vm started.
180 static double elapsedTime();
181
182 // Returns real time in seconds since an arbitrary point
183 // in the past.
184 static bool getTimesSecs(double* process_real_time,
185 double* process_user_time,
186 double* process_system_time);
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147 static bool pd_unmap_memory(char *addr, size_t bytes);
148 static void pd_free_memory(char *addr, size_t bytes, size_t alignment_hint);
149 static void pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint);
150
151 static size_t page_size_for_region(size_t region_size, size_t min_pages, bool must_be_aligned);
152
153 public:
154 static void init(void); // Called before command line parsing
155 static void init_before_ergo(void); // Called after command line parsing
156 // before VM ergonomics processing.
157 static jint init_2(void); // Called after command line parsing
158 // and VM ergonomics processing
159 static void init_globals(void) { // Called from init_globals() in init.cpp
160 init_globals_ext();
161 }
162
163 // File names are case-insensitive on windows only
164 // Override me as needed
165 static int file_name_strcmp(const char* s1, const char* s2);
166
167 // A strlcat like API for safe string concatenation of 2 NULL limited C strings
168 // strlcat is not guranteed to exist on all platforms, so we implement our own
169 static void strlcat(char *dst, const char *src, size_t size) {
170 register char *_dst = dst;
171 register char *_src = (char *)src;
172 register int _size = (int)size;
173
174 while ((_size-- != 0) && (*_dst != '\0')) {
175 _dst++;
176 }
177 while ((_size-- != 0) && (*_src != '\0')) {
178 *_dst = *_src;
179 _dst++; _src++;
180 }
181 *_dst = '\0';
182 }
183
184 // unset environment variable
185 static bool unsetenv(const char* name);
186
187 static bool have_special_privileges();
188
189 static jlong javaTimeMillis();
190 static jlong javaTimeNanos();
191 static void javaTimeNanos_info(jvmtiTimerInfo *info_ptr);
192 static void javaTimeSystemUTC(jlong &seconds, jlong &nanos);
193 static void run_periodic_checks();
194 static bool supports_monotonic_clock();
195
196 // Returns the elapsed time in seconds since the vm started.
197 static double elapsedTime();
198
199 // Returns real time in seconds since an arbitrary point
200 // in the past.
201 static bool getTimesSecs(double* process_real_time,
202 double* process_user_time,
203 double* process_system_time);
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