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annotate src/os/linux/vm/hpi_linux.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
author | stefank |
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date | Tue, 23 Nov 2010 13:22:55 -0800 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_LINUX_VM_HPI_LINUX_HPP |
26 #define OS_LINUX_VM_HPI_LINUX_HPP | |
27 | |
0 | 28 // |
29 // Because the interruptible IO has been dropped for HotSpot/Linux, | |
30 // the following HPI interface is very different from HotSparc. | |
31 // | |
32 | |
33 #include <unistd.h> | |
34 #include <sys/socket.h> | |
35 #include <sys/poll.h> | |
36 #include <sys/ioctl.h> | |
37 #include <netdb.h> | |
38 | |
39 // HPI_FileInterface | |
40 | |
41 inline int hpi::close(int fd) { | |
42 return ::close(fd); | |
43 } | |
44 | |
45 inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) { | |
46 size_t res; | |
47 RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res); | |
48 return res; | |
49 } | |
50 | |
51 inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) { | |
52 size_t res; | |
53 RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res); | |
54 return res; | |
55 } | |
56 | |
57 | |
58 // HPI_SocketInterface | |
59 | |
60 inline int hpi::socket_close(int fd) { | |
61 return ::close(fd); | |
62 } | |
63 | |
64 inline int hpi::socket(int domain, int type, int protocol) { | |
65 return ::socket(domain, type, protocol); | |
66 } | |
67 | |
68 inline int hpi::recv(int fd, char *buf, int nBytes, int flags) { | |
69 RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, (unsigned int) flags)); | |
70 } | |
71 | |
72 inline int hpi::send(int fd, char *buf, int nBytes, int flags) { | |
73 RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, (unsigned int) flags)); | |
74 } | |
75 | |
222 | 76 inline int hpi::raw_send(int fd, char *buf, int nBytes, int flags) { |
77 return send(fd, buf, nBytes, flags); | |
78 } | |
79 | |
0 | 80 inline int hpi::timeout(int fd, long timeout) { |
81 julong prevtime,newtime; | |
82 struct timeval t; | |
83 | |
84 gettimeofday(&t, NULL); | |
85 prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; | |
86 | |
87 for(;;) { | |
88 struct pollfd pfd; | |
89 | |
90 pfd.fd = fd; | |
91 pfd.events = POLLIN | POLLERR; | |
92 | |
93 int res = ::poll(&pfd, 1, timeout); | |
94 | |
95 if (res == OS_ERR && errno == EINTR) { | |
96 | |
97 // On Linux any value < 0 means "forever" | |
98 | |
99 if(timeout >= 0) { | |
100 gettimeofday(&t, NULL); | |
101 newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; | |
102 timeout -= newtime - prevtime; | |
103 if(timeout <= 0) | |
104 return OS_OK; | |
105 prevtime = newtime; | |
106 } | |
107 } else | |
108 return res; | |
109 } | |
110 } | |
111 | |
112 inline int hpi::listen(int fd, int count) { | |
113 return ::listen(fd, count); | |
114 } | |
115 | |
116 inline int hpi::connect(int fd, struct sockaddr *him, int len) { | |
117 RESTARTABLE_RETURN_INT(::connect(fd, him, len)); | |
118 } | |
119 | |
120 inline int hpi::accept(int fd, struct sockaddr *him, int *len) { | |
121 // This cast is from int to unsigned int on linux. Since we | |
122 // only pass the parameter "len" around the vm and don't try to | |
123 // fetch it's value, this cast is safe for now. The java.net group | |
124 // may need and want to change this interface someday if socklen_t goes | |
125 // to 64 bits on some platform that we support. | |
126 // Linux doc says this can't return EINTR, unlike accept() on Solaris | |
127 | |
128 return ::accept(fd, him, (socklen_t *)len); | |
129 } | |
130 | |
131 inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags, | |
132 sockaddr *from, int *fromlen) { | |
133 RESTARTABLE_RETURN_INT(::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen)); | |
134 } | |
135 | |
136 inline int hpi::sendto(int fd, char *buf, int len, int flags, | |
137 struct sockaddr *to, int tolen) { | |
138 RESTARTABLE_RETURN_INT(::sendto(fd, buf, len, (unsigned int) flags, to, tolen)); | |
139 } | |
140 | |
141 inline int hpi::socket_available(int fd, jint *pbytes) { | |
142 // Linux doc says EINTR not returned, unlike Solaris | |
143 int ret = ::ioctl(fd, FIONREAD, pbytes); | |
144 | |
145 //%% note ioctl can return 0 when successful, JVM_SocketAvailable | |
146 // is expected to return 0 on failure and 1 on success to the jdk. | |
147 return (ret < 0) ? 0 : 1; | |
148 } | |
149 | |
150 | |
151 // following methods have been updated to avoid problems in | |
152 // hpi's sockets calls based on sys_api_td.c (JDK1.3) | |
153 | |
154 /* | |
155 HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown, | |
156 int, "%d", | |
157 (int fd, int howto), | |
158 ("fd = %d, howto = %d", fd, howto), | |
159 (fd, howto)); | |
160 */ | |
161 inline int hpi::socket_shutdown(int fd, int howto){ | |
162 return ::shutdown(fd, howto); | |
163 } | |
164 | |
165 /* | |
166 HPIDECL(bind, "bind", _socket, Bind, | |
167 int, "%d", | |
168 (int fd, struct sockaddr *him, int len), | |
169 ("fd = %d, him = %p, len = %d", | |
170 fd, him, len), | |
171 (fd, him, len)); | |
172 */ | |
173 inline int hpi::bind(int fd, struct sockaddr *him, int len){ | |
174 return ::bind(fd, him, len); | |
175 } | |
176 | |
177 /* | |
178 HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName, | |
179 int, "%d", | |
180 (int fd, struct sockaddr *him, int *len), | |
181 ("fd = %d, him = %p, len = %p", | |
182 fd, him, len), | |
183 (fd, him, len)); | |
184 */ | |
185 inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){ | |
186 return ::getsockname(fd, him, (socklen_t *)len); | |
187 } | |
188 | |
189 /* | |
190 HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d", | |
191 (char *hostname, int namelen), | |
192 ("hostname = %p, namelen = %d", | |
193 hostname, namelen), | |
194 (hostname, namelen)); | |
195 */ | |
196 inline int hpi::get_host_name(char* name, int namelen){ | |
197 return ::gethostname(name, namelen); | |
198 } | |
199 | |
200 /* | |
201 HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d", | |
202 (int fd, int level, int optname, char *optval, int* optlen), | |
203 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p", | |
204 fd, level, optname, optval, optlen), | |
205 (fd, level, optname, optval, optlen)); | |
206 */ | |
207 inline int hpi::get_sock_opt(int fd, int level, int optname, | |
208 char *optval, int* optlen){ | |
209 return ::getsockopt(fd, level, optname, optval, (socklen_t *)optlen); | |
210 } | |
211 | |
212 /* | |
213 HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d", | |
214 (int fd, int level, int optname, const char *optval, int optlen), | |
215 ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d", | |
216 fd, level, optname, optval, optlen), | |
217 (fd, level, optname, optval, optlen)); | |
218 */ | |
219 inline int hpi::set_sock_opt(int fd, int level, int optname, | |
220 const char *optval, int optlen){ | |
221 return ::setsockopt(fd, level, optname, optval, optlen); | |
222 } | |
223 | |
224 | |
225 // Reconciliation History | |
226 // hpi_solaris.hpp 1.9 99/08/30 16:31:23 | |
227 // End | |
1972 | 228 |
229 #endif // OS_LINUX_VM_HPI_LINUX_HPP |