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src/java.base/windows/native/libjava/WinNTFileSystem_md.c

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   1 /*
   2  * Copyright (c) 2001, 2015, 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


 870         if (GetDiskFreeSpaceExW(volname, &usableSpace, &totalSpace, &freeSpace)) {
 871             switch(t) {
 872             case java_io_FileSystem_SPACE_TOTAL:
 873                 rv = long_to_jlong(totalSpace.QuadPart);
 874                 break;
 875             case java_io_FileSystem_SPACE_FREE:
 876                 rv = long_to_jlong(freeSpace.QuadPart);
 877                 break;
 878             case java_io_FileSystem_SPACE_USABLE:
 879                 rv = long_to_jlong(usableSpace.QuadPart);
 880                 break;
 881             default:
 882                 assert(0);
 883             }
 884         }
 885     }
 886 
 887     free(pathbuf);
 888     return rv;
 889 }







































   1 /*
   2  * Copyright (c) 2001, 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


 870         if (GetDiskFreeSpaceExW(volname, &usableSpace, &totalSpace, &freeSpace)) {
 871             switch(t) {
 872             case java_io_FileSystem_SPACE_TOTAL:
 873                 rv = long_to_jlong(totalSpace.QuadPart);
 874                 break;
 875             case java_io_FileSystem_SPACE_FREE:
 876                 rv = long_to_jlong(freeSpace.QuadPart);
 877                 break;
 878             case java_io_FileSystem_SPACE_USABLE:
 879                 rv = long_to_jlong(usableSpace.QuadPart);
 880                 break;
 881             default:
 882                 assert(0);
 883             }
 884         }
 885     }
 886 
 887     free(pathbuf);
 888     return rv;
 889 }
 890 
 891 // pathname is expected to be either null or to contain the root
 892 // of the path terminated by a backslash
 893 JNIEXPORT jlong JNICALL
 894 Java_java_io_WinNTFileSystem_getNameMax0(JNIEnv *env, jobject this,
 895                                          jstring pathname)
 896 {
 897     BOOL res = 0;
 898     DWORD maxComponentLength;
 899 
 900     if (pathname == NULL) {
 901             res = GetVolumeInformationW(NULL,
 902                                         NULL,
 903                                         0,
 904                                         NULL,
 905                                         &maxComponentLength,
 906                                         NULL,
 907                                         NULL,
 908                                         0);
 909     } else {
 910         WITH_UNICODE_STRING(env, pathname, path) {
 911             res = GetVolumeInformationW(path,
 912                                         NULL,
 913                                         0,
 914                                         NULL,
 915                                         &maxComponentLength,
 916                                         NULL,
 917                                         NULL,
 918                                         0);
 919         } END_UNICODE_STRING(env, path);
 920     }
 921 
 922     if (res == 0) {
 923         JNU_ThrowIOExceptionWithLastError(env,
 924             "Could not get maximum compnent length");
 925     }
 926 
 927     return (jlong)maxComponentLength;
 928 }
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