1 /*
   2  * Copyright (c) 2008, 2009, 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
  23  * questions.
  24  */
  25 
  26 #include "jni.h"
  27 #include "jni_util.h"
  28 #include "jvm.h"
  29 #include "jlong.h"
  30 
  31 #include <stdlib.h>
  32 #include <dlfcn.h>
  33 #include <sys/types.h>
  34 #include <port.h>       // Solaris 10
  35 
  36 #include "sun_nio_fs_SolarisWatchService.h"
  37 
  38 static void throwUnixException(JNIEnv* env, int errnum) {
  39     jobject x = JNU_NewObjectByName(env, "sun/nio/fs/UnixException",
  40         "(I)V", errnum);
  41     if (x != NULL) {
  42         (*env)->Throw(env, x);
  43     }
  44 }
  45 
  46 JNIEXPORT void JNICALL
  47 Java_sun_nio_fs_SolarisWatchService_init(JNIEnv *env, jclass clazz)
  48 {
  49 }
  50 
  51 JNIEXPORT jint JNICALL
  52 Java_sun_nio_fs_SolarisWatchService_portCreate
  53     (JNIEnv* env, jclass clazz)
  54 {
  55     int port = port_create();
  56     if (port == -1) {
  57         throwUnixException(env, errno);
  58     }
  59     return (jint)port;
  60 }
  61 
  62 JNIEXPORT void JNICALL
  63 Java_sun_nio_fs_SolarisWatchService_portAssociate
  64     (JNIEnv* env, jclass clazz, jint port, jint source, jlong objectAddress, jint events)
  65 {
  66     uintptr_t object = (uintptr_t)jlong_to_ptr(objectAddress);
  67 
  68     if (port_associate((int)port, (int)source, object, (int)events, NULL) == -1) {
  69         throwUnixException(env, errno);
  70     }
  71 }
  72 
  73 JNIEXPORT void JNICALL
  74 Java_sun_nio_fs_SolarisWatchService_portDissociate
  75     (JNIEnv* env, jclass clazz, jint port, jint source, jlong objectAddress)
  76 {
  77     uintptr_t object = (uintptr_t)jlong_to_ptr(objectAddress);
  78 
  79     if (port_dissociate((int)port, (int)source, object) == -1) {
  80         throwUnixException(env, errno);
  81     }
  82 }
  83 
  84 JNIEXPORT void JNICALL
  85 Java_sun_nio_fs_SolarisWatchService_portSend(JNIEnv* env, jclass clazz,
  86     jint port, jint events)
  87 {
  88     if (port_send((int)port, (int)events, NULL) == -1) {
  89         throwUnixException(env, errno);
  90     }
  91 }
  92 
  93 JNIEXPORT jint JNICALL
  94 Java_sun_nio_fs_SolarisWatchService_portGetn(JNIEnv* env, jclass clazz,
  95     jint port, jlong arrayAddress, jint max)
  96 {
  97     uint_t n = 1;
  98     port_event_t* list = (port_event_t*)jlong_to_ptr(arrayAddress);
  99 
 100     if (port_getn((int)port, list, (uint_t)max, &n, NULL) == -1) {
 101         throwUnixException(env, errno);
 102     }
 103     return (jint)n;
 104 }