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 *
23 */
24
25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP
26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP
27 // Win32_OS defines the interface to windows operating systems
28
29 // Information about the protection of the page at address '0' on this os.
30 static bool zero_page_read_protected() { return true; }
31
32 // File conventions
33 static const char* file_separator() { return "\\"; }
34 static const char* line_separator() { return "\r\n"; }
35 static const char* path_separator() { return ";"; }
36
37 class win32 {
38 friend class os;
39
40 protected:
41 static int _vm_page_size;
42 static int _vm_allocation_granularity;
43 static int _processor_type;
44 static int _processor_level;
45 static julong _physical_memory;
46 static size_t _default_stack_size;
47 static bool _is_nt;
48 static bool _is_windows_2003;
49 static bool _is_windows_server;
50 static bool _has_performance_count;
51
52 static void print_windows_version(outputStream* st);
53
54 public:
55 // Windows-specific interface:
56 static void initialize_system_info();
57 static void setmode_streams();
58
59 // Processor info as provided by NT
60 static int processor_type() { return _processor_type; }
61 // Processor level may not be accurate on non-NT systems
62 static int processor_level() {
63 assert(is_nt(), "use vm_version instead");
64 return _processor_level;
65 }
66 static julong available_memory();
67 static julong physical_memory() { return _physical_memory; }
68
69 // load dll from Windows system directory or Windows directory
70 static HINSTANCE load_Windows_dll(const char* name, char *ebuf, int ebuflen);
71
72 private:
73 static void initialize_performance_counter();
74
75 public:
76 // Generic interface:
77
78 // Trace number of created threads
79 static intx _os_thread_limit;
80 static volatile intx _os_thread_count;
81
82 // Tells whether the platform is NT or Windown95
83 static bool is_nt() { return _is_nt; }
84
85 // Tells whether this is a server version of Windows
86 static bool is_windows_server() { return _is_windows_server; }
87
88 // Tells whether the platform is Windows 2003
89 static bool is_windows_2003() { return _is_windows_2003; }
90
91 // Returns the byte size of a virtual memory page
92 static int vm_page_size() { return _vm_page_size; }
93
94 // Returns the size in bytes of memory blocks which can be allocated.
95 static int vm_allocation_granularity() { return _vm_allocation_granularity; }
96
97 // Read the headers for the executable that started the current process into
98 // the structure passed in (see winnt.h).
99 static void read_executable_headers(PIMAGE_NT_HEADERS);
100
101 // Default stack size for the current process.
102 static size_t default_stack_size() { return _default_stack_size; }
103
104 #ifndef _WIN64
105 // A wrapper to install a structured exception handler for fast JNI accesors.
106 static address fast_jni_accessor_wrapper(BasicType);
107 #endif
108
109 static void call_test_func_with_wrapper(void (*funcPtr)(void));
|
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 *
23 */
24
25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP
26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP
27 // Win32_OS defines the interface to windows operating systems
28
29 // Information about the protection of the page at address '0' on this os.
30 static bool zero_page_read_protected() { return true; }
31
32 // File conventions
33 static const char* file_separator() { return "\\"; }
34 static const char* line_separator() { return "\r\n"; }
35 static const char* path_separator() { return ";"; }
36
37 class win32 {
38 friend class os;
39 friend unsigned __stdcall java_start(class Thread*);
40
41 protected:
42 static int _vm_page_size;
43 static int _vm_allocation_granularity;
44 static int _processor_type;
45 static int _processor_level;
46 static julong _physical_memory;
47 static size_t _default_stack_size;
48 static bool _is_nt;
49 static bool _is_windows_2003;
50 static bool _is_windows_server;
51 static bool _has_exit_bug;
52 static bool _has_performance_count;
53
54 static void print_windows_version(outputStream* st);
55
56 public:
57 // Windows-specific interface:
58 static void initialize_system_info();
59 static void setmode_streams();
60
61 // Processor info as provided by NT
62 static int processor_type() { return _processor_type; }
63 // Processor level may not be accurate on non-NT systems
64 static int processor_level() {
65 assert(is_nt(), "use vm_version instead");
66 return _processor_level;
67 }
68 static julong available_memory();
69 static julong physical_memory() { return _physical_memory; }
70
71 // load dll from Windows system directory or Windows directory
72 static HINSTANCE load_Windows_dll(const char* name, char *ebuf, int ebuflen);
73
74 private:
75 enum Ept { EPT_THREAD, EPT_PROCESS, EPT_PROCESS_DIE };
76 // Wrapper around _endthreadex(), exit() and _exit()
77 static int exit_process_or_thread(Ept what, int exit_code);
78
79 static void initialize_performance_counter();
80
81 public:
82 // Generic interface:
83
84 // Trace number of created threads
85 static intx _os_thread_limit;
86 static volatile intx _os_thread_count;
87
88 // Tells whether the platform is NT or Windown95
89 static bool is_nt() { return _is_nt; }
90
91 // Tells whether this is a server version of Windows
92 static bool is_windows_server() { return _is_windows_server; }
93
94 // Tells whether the platform is Windows 2003
95 static bool is_windows_2003() { return _is_windows_2003; }
96
97 // Tells whether there can be the race bug during process exit on this platform
98 static bool has_exit_bug() { return _has_exit_bug; }
99
100 // Returns the byte size of a virtual memory page
101 static int vm_page_size() { return _vm_page_size; }
102
103 // Returns the size in bytes of memory blocks which can be allocated.
104 static int vm_allocation_granularity() { return _vm_allocation_granularity; }
105
106 // Read the headers for the executable that started the current process into
107 // the structure passed in (see winnt.h).
108 static void read_executable_headers(PIMAGE_NT_HEADERS);
109
110 // Default stack size for the current process.
111 static size_t default_stack_size() { return _default_stack_size; }
112
113 #ifndef _WIN64
114 // A wrapper to install a structured exception handler for fast JNI accesors.
115 static address fast_jni_accessor_wrapper(BasicType);
116 #endif
117
118 static void call_test_func_with_wrapper(void (*funcPtr)(void));
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