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annotate src/os/windows/vm/os_windows.inline.hpp @ 3095:d3d00c1ea071

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IdealGraphVisualizer: Enhance text view so it can display arbitrary properties from the active graph's group. For diff graphs, it shows the textual difference between the property strings using the NetBeans Diff module.
author Peter Hofer <peter.hofer@jku.at>
date Wed, 29 Jun 2011 17:33:35 +0200
parents 828eafbd85cc
children cd3d6a6b95d9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP
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26 #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP
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27
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28 #include "runtime/atomic.hpp"
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29 #include "runtime/os.hpp"
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30 #ifdef TARGET_OS_ARCH_windows_x86
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31 # include "atomic_windows_x86.inline.hpp"
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32 # include "orderAccess_windows_x86.inline.hpp"
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33 #endif
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34
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35 inline const char* os::file_separator() { return "\\"; }
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36 inline const char* os::line_separator() { return "\r\n"; }
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37 inline const char* os::path_separator() { return ";"; }
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38 inline const char* os::dll_file_extension() { return ".dll"; }
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39
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40 inline const char* os::jlong_format_specifier() { return "%I64d"; }
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41 inline const char* os::julong_format_specifier() { return "%I64u"; }
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42
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43 inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;}
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44
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45 // File names are case-insensitive on windows only
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46 inline int os::file_name_strcmp(const char* s, const char* t) {
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47 return _stricmp(s, t);
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48 }
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49
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50 inline void os::dll_unload(void *lib) {
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51 ::FreeLibrary((HMODULE)lib);
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52 }
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53
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54 inline void* os::dll_lookup(void *lib, const char *name) {
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55 return (void*)::GetProcAddress((HMODULE)lib, name);
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56 }
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57
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58 // Used to improve time-sharing on some systems
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59 inline void os::loop_breaker(int attempts) {}
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60
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61 inline bool os::obsolete_option(const JavaVMOption *option) {
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62 return false;
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63 }
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64
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65 inline bool os::uses_stack_guard_pages() {
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66 return os::win32::is_nt();
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67 }
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68
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69 inline bool os::allocate_stack_guard_pages() {
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70 assert(uses_stack_guard_pages(), "sanity check");
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71 return true;
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72 }
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73
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74 inline int os::readdir_buf_size(const char *path)
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75 {
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76 /* As Windows doesn't use the directory entry buffer passed to
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77 os::readdir() this can be as short as possible */
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78
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79 return 1;
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80 }
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81
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82 // Bang the shadow pages if they need to be touched to be mapped.
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83 inline void os::bang_stack_shadow_pages() {
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84 // Write to each page of our new frame to force OS mapping.
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85 // If we decrement stack pointer more than one page
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86 // the OS may not map an intervening page into our space
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87 // and may fault on a memory access to interior of our frame.
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88 address sp = current_stack_pointer();
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89 for (int pages = 1; pages <= StackShadowPages; pages++) {
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90 *((int *)(sp - (pages * vm_page_size()))) = 0;
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91 }
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92 }
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94 inline bool os::numa_has_static_binding() { return true; }
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95 inline bool os::numa_has_group_homing() { return false; }
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96
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97 inline size_t os::read(int fd, void *buf, unsigned int nBytes) {
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98 return ::read(fd, buf, nBytes);
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99 }
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100
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101 inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {
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102 return ::read(fd, buf, nBytes);
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103 }
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104
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105 inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {
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106 return ::write(fd, buf, nBytes);
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107 }
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108
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109 inline int os::close(int fd) {
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110 return ::close(fd);
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111 }
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112 #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP