1 /*
2 * Copyright (c) 2005, 2012, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
36
37 #define RESTARTABLE(_cmd, _result) do { \
38 do { \
39 _result = _cmd; \
40 } while((_result == -1) && (errno == EINTR)); \
41 } while(0)
42
43
44 static int
45 iepoll(int epfd, struct epoll_event *events, int numfds, jlong timeout)
46 {
47 jlong start, now;
48 int remaining = timeout;
49 struct timeval t;
50 int diff;
51
52 gettimeofday(&t, NULL);
53 start = t.tv_sec * 1000 + t.tv_usec / 1000;
54
55 for (;;) {
56 int res = epoll_wait(epfd, events, numfds, timeout);
57 if (res < 0 && errno == EINTR) {
58 if (remaining >= 0) {
59 gettimeofday(&t, NULL);
60 now = t.tv_sec * 1000 + t.tv_usec / 1000;
61 diff = now - start;
62 remaining -= diff;
63 if (diff < 0 || remaining <= 0) {
64 return 0;
65 }
66 start = now;
67 }
68 } else {
69 return res;
70 }
71 }
72 }
73
74 JNIEXPORT void JNICALL
75 Java_sun_nio_ch_EPollArrayWrapper_init(JNIEnv *env, jclass this)
76 {
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1 /*
2 * Copyright (c) 2005, 2016, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
36
37 #define RESTARTABLE(_cmd, _result) do { \
38 do { \
39 _result = _cmd; \
40 } while((_result == -1) && (errno == EINTR)); \
41 } while(0)
42
43
44 static int
45 iepoll(int epfd, struct epoll_event *events, int numfds, jlong timeout)
46 {
47 jlong start, now;
48 int remaining = timeout;
49 struct timeval t;
50 int diff;
51
52 gettimeofday(&t, NULL);
53 start = t.tv_sec * 1000 + t.tv_usec / 1000;
54
55 for (;;) {
56 int res = epoll_wait(epfd, events, numfds, remaining);
57 if (res < 0 && errno == EINTR) {
58 if (remaining >= 0) {
59 gettimeofday(&t, NULL);
60 now = t.tv_sec * 1000 + t.tv_usec / 1000;
61 diff = now - start;
62 remaining -= diff;
63 if (diff < 0 || remaining <= 0) {
64 return 0;
65 }
66 start = now;
67 }
68 } else {
69 return res;
70 }
71 }
72 }
73
74 JNIEXPORT void JNICALL
75 Java_sun_nio_ch_EPollArrayWrapper_init(JNIEnv *env, jclass this)
76 {
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