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. 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
37 #endif
38 #ifndef O_DSYNC
39 #define O_DSYNC O_FSYNC
40 #endif
41 #elif !defined(O_DSYNC) || !defined(O_SYNC)
42 #define O_SYNC (0x0800)
43 #define O_DSYNC (0x2000)
44 #endif
45
46 /*
47 * IO helper functions
48 */
49
50 jint readSingle(JNIEnv *env, jobject this, jfieldID fid);
51 jint readBytes(JNIEnv *env, jobject this, jbyteArray bytes, jint off,
52 jint len, jfieldID fid);
53 void writeSingle(JNIEnv *env, jobject this, jint byte, jboolean append, jfieldID fid);
54 void writeBytes(JNIEnv *env, jobject this, jbyteArray bytes, jint off,
55 jint len, jboolean append, jfieldID fid);
56 void fileOpen(JNIEnv *env, jobject this, jstring path, jfieldID fid, int flags);
57 void throwFileNotFoundException(JNIEnv *env, jstring path);
58
59 /*
60 * Macros for managing platform strings. The typical usage pattern is:
61 *
62 * WITH_PLATFORM_STRING(env, string, var) {
63 * doSomethingWith(var);
64 * } END_PLATFORM_STRING(env, var);
65 *
66 * where env is the prevailing JNIEnv,
67 * string is a JNI reference to a java.lang.String object, and
68 * var is the char * variable that will point to the string,
69 * after being converted into the platform encoding.
70 *
71 * The related macro WITH_FIELD_PLATFORM_STRING first extracts the string from
72 * a given field of a given object:
73 *
74 * WITH_FIELD_PLATFORM_STRING(env, object, id, var) {
75 * doSomethingWith(var);
76 * } END_PLATFORM_STRING(env, var);
77 *
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1 /*
2 * Copyright (c) 1997, 2018, 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
37 #endif
38 #ifndef O_DSYNC
39 #define O_DSYNC O_FSYNC
40 #endif
41 #elif !defined(O_DSYNC) || !defined(O_SYNC)
42 #define O_SYNC (0x0800)
43 #define O_DSYNC (0x2000)
44 #endif
45
46 /*
47 * IO helper functions
48 */
49
50 jint readSingle(JNIEnv *env, jobject this, jfieldID fid);
51 jint readBytes(JNIEnv *env, jobject this, jbyteArray bytes, jint off,
52 jint len, jfieldID fid);
53 void writeSingle(JNIEnv *env, jobject this, jint byte, jboolean append, jfieldID fid);
54 void writeBytes(JNIEnv *env, jobject this, jbyteArray bytes, jint off,
55 jint len, jboolean append, jfieldID fid);
56 void fileOpen(JNIEnv *env, jobject this, jstring path, jfieldID fid, int flags);
57 JNIEXPORT void JNICALL
58 throwFileNotFoundException(JNIEnv *env, jstring path);
59
60 /*
61 * Macros for managing platform strings. The typical usage pattern is:
62 *
63 * WITH_PLATFORM_STRING(env, string, var) {
64 * doSomethingWith(var);
65 * } END_PLATFORM_STRING(env, var);
66 *
67 * where env is the prevailing JNIEnv,
68 * string is a JNI reference to a java.lang.String object, and
69 * var is the char * variable that will point to the string,
70 * after being converted into the platform encoding.
71 *
72 * The related macro WITH_FIELD_PLATFORM_STRING first extracts the string from
73 * a given field of a given object:
74 *
75 * WITH_FIELD_PLATFORM_STRING(env, object, id, var) {
76 * doSomethingWith(var);
77 * } END_PLATFORM_STRING(env, var);
78 *
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