os_solaris.inline.hpp revision 6134:9ba2269eafd4 
1/*
2 * Copyright (c) 1997, 2014, 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.
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23 */
24
25#ifndef OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
26#define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
27
28#include "runtime/atomic.inline.hpp"
29#include "runtime/os.hpp"
30
31#ifdef TARGET_OS_ARCH_solaris_x86
32# include "orderAccess_solaris_x86.inline.hpp"
33#endif
34#ifdef TARGET_OS_ARCH_solaris_sparc
35# include "orderAccess_solaris_sparc.inline.hpp"
36#endif
37
38// System includes
39#include <sys/param.h>
40#include <dlfcn.h>
41#include <sys/socket.h>
42#include <sys/poll.h>
43#include <sys/filio.h>
44#include <unistd.h>
45#include <netdb.h>
46#include <setjmp.h>
47
48inline const char* os::file_separator() { return "/"; }
49inline const char* os::line_separator() { return "\n"; }
50inline const char* os::path_separator() { return ":"; }
51
52// File names are case-sensitive on windows only
53inline int os::file_name_strcmp(const char* s1, const char* s2) {
54  return strcmp(s1, s2);
55}
56
57inline bool os::uses_stack_guard_pages() {
58  return true;
59}
60
61inline bool os::allocate_stack_guard_pages() {
62  assert(uses_stack_guard_pages(), "sanity check");
63  int r = thr_main() ;
64  guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
65  return r;
66}
67
68
69// On Solaris, reservations are made on a page by page basis, nothing to do.
70inline void os::pd_split_reserved_memory(char *base, size_t size,
71                                      size_t split, bool realloc) {
72}
73
74
75// Bang the shadow pages if they need to be touched to be mapped.
76inline void os::bang_stack_shadow_pages() {
77}
78inline void os::dll_unload(void *lib) { ::dlclose(lib); }
79
80inline DIR* os::opendir(const char* dirname) {
81  assert(dirname != NULL, "just checking");
82  return ::opendir(dirname);
83}
84
85inline int os::readdir_buf_size(const char *path) {
86  int size = pathconf(path, _PC_NAME_MAX);
87  return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
88}
89
90inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
91  assert(dirp != NULL, "just checking");
92#if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
93  dirent* p;
94  int status;
95
96  if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
97    errno = status;
98    return NULL;
99  } else
100    return p;
101#else  // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
102  return ::readdir_r(dirp, dbuf);
103#endif // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
104}
105
106inline int os::closedir(DIR *dirp) {
107  assert(dirp != NULL, "argument is NULL");
108  return ::closedir(dirp);
109}
110
111//////////////////////////////////////////////////////////////////////////////
112////////////////////////////////////////////////////////////////////////////////
113
114// macros for restartable system calls
115
116#define RESTARTABLE(_cmd, _result) do { \
117  do { \
118    _result = _cmd; \
119  } while((_result == OS_ERR) && (errno == EINTR)); \
120} while(false)
121
122#define RESTARTABLE_RETURN_INT(_cmd) do { \
123  int _result; \
124  RESTARTABLE(_cmd, _result); \
125  return _result; \
126} while(false)
127
128inline bool os::numa_has_static_binding()   { return false; }
129inline bool os::numa_has_group_homing()     { return true;  }
130
131inline int    os::socket(int domain, int type, int protocol) {
132  return ::socket(domain, type, protocol);
133}
134
135inline int    os::listen(int fd, int count) {
136  if (fd < 0) return OS_ERR;
137
138  return ::listen(fd, count);
139}
140
141inline int os::socket_shutdown(int fd, int howto){
142  return ::shutdown(fd, howto);
143}
144
145inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len){
146  return ::getsockname(fd, him, len);
147}
148
149inline int os::get_host_name(char* name, int namelen){
150  return ::gethostname(name, namelen);
151}
152
153inline struct hostent* os::get_host_by_name(char* name) {
154  return ::gethostbyname(name);
155}
156
157inline int os::get_sock_opt(int fd, int level, int optname,
158                            char* optval, socklen_t* optlen) {
159  return ::getsockopt(fd, level, optname, optval, optlen);
160}
161
162inline int os::set_sock_opt(int fd, int level, int optname,
163                            const char *optval, socklen_t optlen) {
164  return ::setsockopt(fd, level, optname, optval, optlen);
165}
166
167inline bool os::supports_monotonic_clock() {
168  // javaTimeNanos() is monotonic on Solaris, see getTimeNanos() comments
169  return true;
170}
171
172#endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
173