Mercurial > hg > graal-jvmci-8
comparison src/os/solaris/vm/hpi_solaris.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 2a1a77d3458f |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1998-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // | |
26 // Parts of the HPI interface for which the HotSparc does not use the | |
27 // HPI (because the interruptible IO mechanims used are different). | |
28 // | |
29 | |
30 #include <sys/socket.h> | |
31 #include <sys/poll.h> | |
32 #include <sys/filio.h> | |
33 #include <unistd.h> | |
34 #include <netdb.h> | |
35 #include <setjmp.h> | |
36 | |
37 // HPI_FileInterface | |
38 | |
39 // Many system calls can be interrupted by signals and must be restarted. | |
40 // Restart support was added without disturbing the extent of thread | |
41 // interruption support. | |
42 | |
43 inline int hpi::close(int fd) { | |
44 RESTARTABLE_RETURN_INT(::close(fd)); | |
45 } | |
46 | |
47 inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) { | |
48 INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
49 } | |
50 | |
51 inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) { | |
52 INTERRUPTIBLE_RETURN_INT(::write(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
53 } | |
54 | |
55 | |
56 // HPI_SocketInterface | |
57 | |
58 inline int hpi::socket_close(int fd) { | |
59 RESTARTABLE_RETURN_INT(::close(fd)); | |
60 } | |
61 | |
62 inline int hpi::socket(int domain, int type, int protocol) { | |
63 return ::socket(domain, type, protocol); | |
64 } | |
65 | |
66 inline int hpi::recv(int fd, char *buf, int nBytes, int flags) { | |
67 INTERRUPTIBLE_RETURN_INT(::recv(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); | |
68 } | |
69 | |
70 inline int hpi::send(int fd, char *buf, int nBytes, int flags) { | |
71 INTERRUPTIBLE_RETURN_INT(::send(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); | |
72 } | |
73 | |
74 // As both poll and select can be interrupted by signals, we have to be | |
75 // prepared to restart the system call after updating the timeout, unless | |
76 // a poll() is done with timeout == -1, in which case we repeat with this | |
77 // "wait forever" value. | |
78 | |
79 inline int hpi::timeout(int fd, long timeout) { | |
80 int res; | |
81 struct timeval t; | |
82 julong prevtime, newtime; | |
83 static const char* aNull = 0; | |
84 | |
85 struct pollfd pfd; | |
86 pfd.fd = fd; | |
87 pfd.events = POLLIN; | |
88 | |
89 gettimeofday(&t, &aNull); | |
90 prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; | |
91 | |
92 for(;;) { | |
93 INTERRUPTIBLE_NORESTART(::poll(&pfd, 1, timeout), res, os::Solaris::clear_interrupted); | |
94 if(res == OS_ERR && errno == EINTR) { | |
95 if(timeout != -1) { | |
96 gettimeofday(&t, &aNull); | |
97 newtime = ((julong)t.tv_sec * 1000) + t.tv_usec /1000; | |
98 timeout -= newtime - prevtime; | |
99 if(timeout <= 0) | |
100 return OS_OK; | |
101 prevtime = newtime; | |
102 } | |
103 } else | |
104 return res; | |
105 } | |
106 } | |
107 | |
108 inline int hpi::listen(int fd, int count) { | |
109 if (fd < 0) | |
110 return OS_ERR; | |
111 | |
112 return ::listen(fd, count); | |
113 } | |
114 | |
115 inline int | |
116 hpi::connect(int fd, struct sockaddr *him, int len) { | |
117 do { | |
118 int _result; | |
119 INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result, | |
120 os::Solaris::clear_interrupted); | |
121 | |
122 // Depending on when thread interruption is reset, _result could be | |
123 // one of two values when errno == EINTR | |
124 | |
125 if (((_result == OS_INTRPT) || (_result == OS_ERR)) && (errno == EINTR)) { | |
126 /* restarting a connect() changes its errno semantics */ | |
127 INTERRUPTIBLE(::connect(fd, him, len), _result, | |
128 os::Solaris::clear_interrupted); | |
129 /* undo these changes */ | |
130 if (_result == OS_ERR) { | |
131 if (errno == EALREADY) errno = EINPROGRESS; /* fall through */ | |
132 else if (errno == EISCONN) { errno = 0; return OS_OK; } | |
133 } | |
134 } | |
135 return _result; | |
136 } while(false); | |
137 } | |
138 | |
139 inline int hpi::accept(int fd, struct sockaddr *him, int *len) { | |
140 if (fd < 0) | |
141 return OS_ERR; | |
142 INTERRUPTIBLE_RETURN_INT((int)::accept(fd, him, (socklen_t*) len), os::Solaris::clear_interrupted); | |
143 } | |
144 | |
145 inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags, | |
146 sockaddr *from, int *fromlen) { | |
147 //%%note jvm_r11 | |
148 INTERRUPTIBLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen), os::Solaris::clear_interrupted); | |
149 } | |
150 | |
151 inline int hpi::sendto(int fd, char *buf, int len, int flags, | |
152 struct sockaddr *to, int tolen) { | |
153 //%%note jvm_r11 | |
154 INTERRUPTIBLE_RETURN_INT((int)::sendto(fd, buf, len, (unsigned int) flags, to, tolen),os::Solaris::clear_interrupted); | |
155 } | |
156 | |
157 inline int hpi::socket_available(int fd, jint *pbytes) { | |
158 if (fd < 0) | |
159 return OS_OK; | |
160 | |
161 int ret; | |
162 | |
163 RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); | |
164 | |
165 //%% note ioctl can return 0 when successful, JVM_SocketAvailable | |
166 // is expected to return 0 on failure and 1 on success to the jdk. | |
167 | |
168 return (ret == OS_ERR) ? 0 : 1; | |
169 } | |
170 | |
171 | |
172 /* | |
173 HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown, | |
174 int, "%d", | |
175 (int fd, int howto), | |
176 ("fd = %d, howto = %d", fd, howto), | |
177 (fd, howto)); | |
178 */ | |
179 inline int hpi::socket_shutdown(int fd, int howto){ | |
180 return ::shutdown(fd, howto); | |
181 } | |
182 | |
183 /* | |
184 HPIDECL(bind, "bind", _socket, Bind, | |
185 int, "%d", | |
186 (int fd, struct sockaddr *him, int len), | |
187 ("fd = %d, him = %p, len = %d", | |
188 fd, him, len), | |
189 (fd, him, len)); | |
190 */ | |
191 inline int hpi::bind(int fd, struct sockaddr *him, int len){ | |
192 INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),os::Solaris::clear_interrupted); | |
193 } | |
194 | |
195 /* | |
196 HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName, | |
197 int, "%d", | |
198 (int fd, struct sockaddr *him, int *len), | |
199 ("fd = %d, him = %p, len = %p", | |
200 fd, him, len), | |
201 (fd, him, len)); | |
202 */ | |
203 inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){ | |
204 return ::getsockname(fd, him, (socklen_t*) len); | |
205 } | |
206 | |
207 /* | |
208 HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d", | |
209 (char *hostname, int namelen), | |
210 ("hostname = %p, namelen = %d", | |
211 hostname, namelen), | |
212 (hostname, namelen)); | |
213 */ | |
214 inline int hpi::get_host_name(char* name, int namelen){ | |
215 return ::gethostname(name, namelen); | |
216 } | |
217 | |
218 /* | |
219 HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d", | |
220 (int fd, int level, int optname, char *optval, int* optlen), | |
221 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p", | |
222 fd, level, optname, optval, optlen), | |
223 (fd, level, optname, optval, optlen)); | |
224 */ | |
225 inline int hpi::get_sock_opt(int fd, int level, int optname, | |
226 char *optval, int* optlen){ | |
227 return ::getsockopt(fd, level, optname, optval, (socklen_t*) optlen); | |
228 } | |
229 | |
230 /* | |
231 HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d", | |
232 (int fd, int level, int optname, const char *optval, int optlen), | |
233 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d", | |
234 fd, level, optname, optval, optlen), | |
235 (fd, level, optname, optval, optlen)); | |
236 */ | |
237 inline int hpi::set_sock_opt(int fd, int level, int optname, | |
238 const char *optval, int optlen){ | |
239 return ::setsockopt(fd, level, optname, optval, optlen); | |
240 } | |
241 | |
242 //Reconciliation History | |
243 // 1.3 98/10/21 18:17:14 hpi_win32.hpp | |
244 // 1.6 99/06/28 11:01:36 hpi_win32.hpp | |
245 //End |