Fri, 05 Apr 2013 11:15:13 -0700
8006001: [parfait] Possible file leak in hotspot/src/os/linux/vm/perfMemory_linux.cpp
Reviewed-by: zgu, coleenp, hseigel, dholmes
duke@435 | 1 | /* |
hseigel@4465 | 2 | * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
stefank@2314 | 26 | #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
stefank@2314 | 27 | |
twisti@4318 | 28 | #include "runtime/atomic.inline.hpp" |
stefank@2314 | 29 | #include "runtime/os.hpp" |
twisti@4318 | 30 | |
stefank@2314 | 31 | #ifdef TARGET_OS_ARCH_windows_x86 |
stefank@2314 | 32 | # include "orderAccess_windows_x86.inline.hpp" |
stefank@2314 | 33 | #endif |
stefank@2314 | 34 | |
duke@435 | 35 | inline const char* os::file_separator() { return "\\"; } |
duke@435 | 36 | inline const char* os::line_separator() { return "\r\n"; } |
duke@435 | 37 | inline const char* os::path_separator() { return ";"; } |
ikrylov@2322 | 38 | inline const char* os::dll_file_extension() { return ".dll"; } |
duke@435 | 39 | |
ikrylov@2322 | 40 | inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;} |
ikrylov@2322 | 41 | |
duke@435 | 42 | // File names are case-insensitive on windows only |
duke@435 | 43 | inline int os::file_name_strcmp(const char* s, const char* t) { |
duke@435 | 44 | return _stricmp(s, t); |
duke@435 | 45 | } |
duke@435 | 46 | |
ikrylov@2322 | 47 | inline void os::dll_unload(void *lib) { |
ikrylov@2322 | 48 | ::FreeLibrary((HMODULE)lib); |
ikrylov@2322 | 49 | } |
ikrylov@2322 | 50 | |
ikrylov@2322 | 51 | inline void* os::dll_lookup(void *lib, const char *name) { |
ikrylov@2322 | 52 | return (void*)::GetProcAddress((HMODULE)lib, name); |
ikrylov@2322 | 53 | } |
ikrylov@2322 | 54 | |
duke@435 | 55 | // Used to improve time-sharing on some systems |
duke@435 | 56 | inline void os::loop_breaker(int attempts) {} |
duke@435 | 57 | |
duke@435 | 58 | inline bool os::obsolete_option(const JavaVMOption *option) { |
duke@435 | 59 | return false; |
duke@435 | 60 | } |
duke@435 | 61 | |
duke@435 | 62 | inline bool os::uses_stack_guard_pages() { |
duke@435 | 63 | return os::win32::is_nt(); |
duke@435 | 64 | } |
duke@435 | 65 | |
duke@435 | 66 | inline bool os::allocate_stack_guard_pages() { |
duke@435 | 67 | assert(uses_stack_guard_pages(), "sanity check"); |
duke@435 | 68 | return true; |
duke@435 | 69 | } |
duke@435 | 70 | |
duke@435 | 71 | inline int os::readdir_buf_size(const char *path) |
duke@435 | 72 | { |
duke@435 | 73 | /* As Windows doesn't use the directory entry buffer passed to |
duke@435 | 74 | os::readdir() this can be as short as possible */ |
duke@435 | 75 | |
duke@435 | 76 | return 1; |
duke@435 | 77 | } |
duke@435 | 78 | |
duke@435 | 79 | // Bang the shadow pages if they need to be touched to be mapped. |
duke@435 | 80 | inline void os::bang_stack_shadow_pages() { |
duke@435 | 81 | // Write to each page of our new frame to force OS mapping. |
duke@435 | 82 | // If we decrement stack pointer more than one page |
duke@435 | 83 | // the OS may not map an intervening page into our space |
duke@435 | 84 | // and may fault on a memory access to interior of our frame. |
duke@435 | 85 | address sp = current_stack_pointer(); |
duke@435 | 86 | for (int pages = 1; pages <= StackShadowPages; pages++) { |
duke@435 | 87 | *((int *)(sp - (pages * vm_page_size()))) = 0; |
duke@435 | 88 | } |
duke@435 | 89 | } |
iveresov@576 | 90 | |
iveresov@576 | 91 | inline bool os::numa_has_static_binding() { return true; } |
iveresov@576 | 92 | inline bool os::numa_has_group_homing() { return false; } |
stefank@2314 | 93 | |
ikrylov@2322 | 94 | inline size_t os::read(int fd, void *buf, unsigned int nBytes) { |
ikrylov@2322 | 95 | return ::read(fd, buf, nBytes); |
ikrylov@2322 | 96 | } |
ikrylov@2322 | 97 | |
ikrylov@2322 | 98 | inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
ikrylov@2322 | 99 | return ::read(fd, buf, nBytes); |
ikrylov@2322 | 100 | } |
ikrylov@2322 | 101 | |
ikrylov@2322 | 102 | inline size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
ikrylov@2322 | 103 | return ::write(fd, buf, nBytes); |
ikrylov@2322 | 104 | } |
ikrylov@2322 | 105 | |
ikrylov@2322 | 106 | inline int os::close(int fd) { |
ikrylov@2322 | 107 | return ::close(fd); |
ikrylov@2322 | 108 | } |
stefank@2314 | 109 | #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |