Mercurial > hg > graal-compiler

comparison src/os/linux/vm/hpi_linux.hpp @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 2a1a77d3458f
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1999-2005 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 // Because the interruptible IO has been dropped for HotSpot/Linux,
27 // the following HPI interface is very different from HotSparc.
28 //
29
30 #include <unistd.h>
31 #include <sys/socket.h>
32 #include <sys/poll.h>
33 #include <sys/ioctl.h>
34 #include <netdb.h>
35
36 // HPI_FileInterface
37
38 inline int hpi::close(int fd) {
39 return ::close(fd);
40 }
41
42 inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) {
43 size_t res;
44 RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);
45 return res;
46 }
47
48 inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) {
49 size_t res;
50 RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);
51 return res;
52 }
53
54
55 // HPI_SocketInterface
56
57 inline int hpi::socket_close(int fd) {
58 return ::close(fd);
59 }
60
61 inline int hpi::socket(int domain, int type, int protocol) {
62 return ::socket(domain, type, protocol);
63 }
64
65 inline int hpi::recv(int fd, char *buf, int nBytes, int flags) {
66 RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, (unsigned int) flags));
67 }
68
69 inline int hpi::send(int fd, char *buf, int nBytes, int flags) {
70 RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, (unsigned int) flags));
71 }
72
73 inline int hpi::timeout(int fd, long timeout) {
74 julong prevtime,newtime;
75 struct timeval t;
76
77 gettimeofday(&t, NULL);
78 prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
79
80 for(;;) {
81 struct pollfd pfd;
82
83 pfd.fd = fd;
84 pfd.events = POLLIN | POLLERR;
85
86 int res = ::poll(&pfd, 1, timeout);
87
88 if (res == OS_ERR && errno == EINTR) {
89
90 // On Linux any value < 0 means "forever"
91
92 if(timeout >= 0) {
93 gettimeofday(&t, NULL);
94 newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
95 timeout -= newtime - prevtime;
96 if(timeout <= 0)
97 return OS_OK;
98 prevtime = newtime;
99 }
100 } else
101 return res;
102 }
103 }
104
105 inline int hpi::listen(int fd, int count) {
106 return ::listen(fd, count);
107 }
108
109 inline int hpi::connect(int fd, struct sockaddr *him, int len) {
110 RESTARTABLE_RETURN_INT(::connect(fd, him, len));
111 }
112
113 inline int hpi::accept(int fd, struct sockaddr *him, int *len) {
114 // This cast is from int to unsigned int on linux. Since we
115 // only pass the parameter "len" around the vm and don't try to
116 // fetch it's value, this cast is safe for now. The java.net group
117 // may need and want to change this interface someday if socklen_t goes
118 // to 64 bits on some platform that we support.
119 // Linux doc says this can't return EINTR, unlike accept() on Solaris
120
121 return ::accept(fd, him, (socklen_t *)len);
122 }
123
124 inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags,
125 sockaddr *from, int *fromlen) {
126 RESTARTABLE_RETURN_INT(::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen));
127 }
128
129 inline int hpi::sendto(int fd, char *buf, int len, int flags,
130 struct sockaddr *to, int tolen) {
131 RESTARTABLE_RETURN_INT(::sendto(fd, buf, len, (unsigned int) flags, to, tolen));
132 }
133
134 inline int hpi::socket_available(int fd, jint *pbytes) {
135 // Linux doc says EINTR not returned, unlike Solaris
136 int ret = ::ioctl(fd, FIONREAD, pbytes);
137
138 //%% note ioctl can return 0 when successful, JVM_SocketAvailable
139 // is expected to return 0 on failure and 1 on success to the jdk.
140 return (ret < 0) ? 0 : 1;
141 }
142
143
144 // following methods have been updated to avoid problems in
145 // hpi's sockets calls based on sys_api_td.c (JDK1.3)
146
147 /*
148 HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown,
149 int, "%d",
150 (int fd, int howto),
151 ("fd = %d, howto = %d", fd, howto),
152 (fd, howto));
153 */
154 inline int hpi::socket_shutdown(int fd, int howto){
155 return ::shutdown(fd, howto);
156 }
157
158 /*
159 HPIDECL(bind, "bind", _socket, Bind,
160 int, "%d",
161 (int fd, struct sockaddr *him, int len),
162 ("fd = %d, him = %p, len = %d",
163 fd, him, len),
164 (fd, him, len));
165 */
166 inline int hpi::bind(int fd, struct sockaddr *him, int len){
167 return ::bind(fd, him, len);
168 }
169
170 /*
171 HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName,
172 int, "%d",
173 (int fd, struct sockaddr *him, int *len),
174 ("fd = %d, him = %p, len = %p",
175 fd, him, len),
176 (fd, him, len));
177 */
178 inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){
179 return ::getsockname(fd, him, (socklen_t *)len);
180 }
181
182 /*
183 HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d",
184 (char *hostname, int namelen),
185 ("hostname = %p, namelen = %d",
186 hostname, namelen),
187 (hostname, namelen));
188 */
189 inline int hpi::get_host_name(char* name, int namelen){
190 return ::gethostname(name, namelen);
191 }
192
193 /*
194 HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d",
195 (int fd, int level, int optname, char *optval, int* optlen),
196 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p",
197 fd, level, optname, optval, optlen),
198 (fd, level, optname, optval, optlen));
199 */
200 inline int hpi::get_sock_opt(int fd, int level, int optname,
201 char *optval, int* optlen){
202 return ::getsockopt(fd, level, optname, optval, (socklen_t *)optlen);
203 }
204
205 /*
206 HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d",
207 (int fd, int level, int optname, const char *optval, int optlen),
208 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d",
209 fd, level, optname, optval, optlen),
210 (fd, level, optname, optval, optlen));
211 */
212 inline int hpi::set_sock_opt(int fd, int level, int optname,
213 const char *optval, int optlen){
214 return ::setsockopt(fd, level, optname, optval, optlen);
215 }
216
217
218 // Reconciliation History
219 // hpi_solaris.hpp 1.9 99/08/30 16:31:23
220 // End