os_solaris.inline.hpp revision 7049:396253716f03 
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.
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 <sys/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
41inline int os::file_name_strcmp(const char* s1, const char* s2) {
42  return strcmp(s1, s2);
43}
44
45inline bool os::uses_stack_guard_pages() {
46  return true;
47}
48
49inline bool os::allocate_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.
58inline 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.
64inline void os::bang_stack_shadow_pages() {
65}
66inline void os::dll_unload(void *lib) { ::dlclose(lib); }
67
68inline DIR* os::opendir(const char* dirname) {
69  assert(dirname != NULL, "just checking");
70  return ::opendir(dirname);
71}
72
73inline int os::readdir_buf_size(const char *path) {
74  int size = pathconf(path, _PC_NAME_MAX);
75  return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
76}
77
78inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
79  assert(dirp != NULL, "just checking");
80#if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
81  dirent* p;
82  int status;
83
84  if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
85    errno = status;
86    return NULL;
87  } else
88    return p;
89#else  // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
90  return ::readdir_r(dirp, dbuf);
91#endif // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
92}
93
94inline 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
116inline bool os::numa_has_static_binding()   { return false; }
117inline bool os::numa_has_group_homing()     { return true;  }
118
119inline int    os::socket(int domain, int type, int protocol) {
120  return ::socket(domain, type, protocol);
121}
122
123inline int    os::listen(int fd, int count) {
124  if (fd < 0) return OS_ERR;
125
126  return ::listen(fd, count);
127}
128
129inline int os::socket_shutdown(int fd, int howto){
130  return ::shutdown(fd, howto);
131}
132
133inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len){
134  return ::getsockname(fd, him, len);
135}
136
137inline int os::get_host_name(char* name, int namelen){
138  return ::gethostname(name, namelen);
139}
140
141inline struct hostent* os::get_host_by_name(char* name) {
142  return ::gethostbyname(name);
143}
144
145inline int os::get_sock_opt(int fd, int level, int optname,
146                            char* optval, socklen_t* optlen) {
147  return ::getsockopt(fd, level, optname, optval, optlen);
148}
149
150inline int os::set_sock_opt(int fd, int level, int optname,
151                            const char *optval, socklen_t optlen) {
152  return ::setsockopt(fd, level, optname, optval, optlen);
153}
154
155inline bool os::supports_monotonic_clock() {
156  // javaTimeNanos() is monotonic on Solaris, see getTimeNanos() comments
157  return true;
158}
159
160inline void os::exit(int num) {
161  ::exit(num);
162}
163
164#endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
165