1 /* 2 * Copyright (c) 1997, 2016, 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 * 23 */ 24 25 #ifndef OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 26 #define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 27 28 #include "runtime/os.hpp" 29 30 // System includes 31 #include <sys/param.h> 32 #include <dlfcn.h> 33 #include <sys/socket.h> 34 #include <poll.h> 35 #include <sys/filio.h> 36 #include <unistd.h> 37 #include <netdb.h> 38 #include <setjmp.h> 39 40 // File names are case-sensitive on windows only 41 inline int os::file_name_strcmp(const char* s1, const char* s2) { 42 return strcmp(s1, s2); 43 } 44 45 inline bool os::uses_stack_guard_pages() { 46 return true; 47 } 48 49 inline bool os::must_commit_stack_guard_pages() { 50 assert(uses_stack_guard_pages(), "sanity check"); 51 int r = thr_main() ; 52 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; 53 return r; 54 } 55 56 57 // On Solaris, reservations are made on a page by page basis, nothing to do. 58 inline void os::pd_split_reserved_memory(char *base, size_t size, 59 size_t split, bool realloc) { 60 } 61 62 63 // Bang the shadow pages if they need to be touched to be mapped. 64 inline void os::map_stack_shadow_pages(address sp) { 65 } 66 67 inline void os::dll_unload(void *lib) { ::dlclose(lib); } 68 69 inline const int os::default_file_open_flags() { return 0;} 70 71 inline DIR* os::opendir(const char* dirname) { 72 assert(dirname != NULL, "just checking"); 73 return ::opendir(dirname); 74 } 75 76 inline int os::readdir_buf_size(const char *path) { 77 int size = pathconf(path, _PC_NAME_MAX); 78 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1; 79 } 80 81 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) { 82 assert(dirp != NULL, "just checking"); 83 dirent* p; 84 int status; 85 86 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { 87 errno = status; 88 return NULL; 89 } else { 90 return p; 91 } 92 } 93 94 inline int os::closedir(DIR *dirp) { 95 assert(dirp != NULL, "argument is NULL"); 96 return ::closedir(dirp); 97 } 98 99 ////////////////////////////////////////////////////////////////////////////// 100 //////////////////////////////////////////////////////////////////////////////// 101 102 // macros for restartable system calls 103 104 #define RESTARTABLE(_cmd, _result) do { \ 105 do { \ 106 _result = _cmd; \ 107 } while((_result == OS_ERR) && (errno == EINTR)); \ 108 } while(false) 109 110 #define RESTARTABLE_RETURN_INT(_cmd) do { \ 111 int _result; \ 112 RESTARTABLE(_cmd, _result); \ 113 return _result; \ 114 } while(false) 115 116 inline bool os::numa_has_static_binding() { return false; } 117 inline bool os::numa_has_group_homing() { return true; } 118 119 inline int os::socket(int domain, int type, int protocol) { 120 return ::socket(domain, type, protocol); 121 } 122 123 inline struct hostent* os::get_host_by_name(char* name) { 124 return ::gethostbyname(name); 125 } 126 127 inline bool os::supports_monotonic_clock() { 128 // javaTimeNanos() is monotonic on Solaris, see getTimeNanos() comments 129 return true; 130 } 131 132 inline void os::exit(int num) { 133 ::exit(num); 134 } 135 136 #endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP