src/JAVA/libjafs/Volume.c

   1 /*
   2  * Copyright (c) 2001-2002 International Business Machines Corp.
   3  * All rights reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  *
   9  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  10  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  11  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  12  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
  13  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  14  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  15  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  16  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  17  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  18  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  19  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  20  */
  21
  22 #include "Internal.h"
  23 #include "org_openafs_jafs_Volume.h"
  24
  25 #include <afs_vosAdmin.h>
  26 #include <afs_AdminCommonErrors.h>
  27
  28 //// definitions in Internal.c  //////////////////
  29
  30 extern jclass volumeCls;
  31 extern jfieldID volume_nameField;
  32 extern jfieldID volume_idField;
  33 extern jfieldID volume_readWriteIdField;
  34 extern jfieldID volume_readOnlyIdField;
  35 extern jfieldID volume_backupIdField;
  36 extern jfieldID volume_creationDateField;
  37 extern jfieldID volume_lastAccessDateField;
  38 extern jfieldID volume_lastUpdateDateField;
  39 extern jfieldID volume_lastBackupDateField;
  40 extern jfieldID volume_copyCreationDateField;
  41 extern jfieldID volume_accessesSinceMidnightField;
  42 extern jfieldID volume_fileCountField;
  43 extern jfieldID volume_maxQuotaField;
  44 extern jfieldID volume_currentSizeField;
  45 extern jfieldID volume_statusField;
  46 extern jfieldID volume_dispositionField;
  47 extern jfieldID volume_typeField;
  48
  49 //////////////////////////////////////////////////////////
  50
  51 /**
  52  * Extract the information from the given volume entry and populate the
  53  * given object
  54  *
  55  * env      the Java environment
  56  * volume      the Volume object to populate with the info
  57  * volEntry     the container of the volume's information
  58  */
  59 extern void fillVolumeInfo( JNIEnv *env, jobject volume,
  60                             vos_volumeEntry_t volEntry ) {
  61
  62   jstring jvolume;
  63
  64   // get the class fields if need be
  65   if( volumeCls == 0 ) {
  66     internal_getVolumeClass( env, volume );
  67   }
  68
  69   // set name, just in case it was a completely blank object
  70   jvolume = (*env)->NewStringUTF(env, volEntry.name);
  71   (*env)->SetObjectField(env, volume, volume_nameField, jvolume);
  72
  73   (*env)->SetIntField(env, volume, volume_idField, volEntry.id);
  74   (*env)->SetIntField(env, volume, volume_readWriteIdField,
  75                       volEntry.readWriteId);
  76   (*env)->SetIntField(env, volume, volume_readOnlyIdField,
  77                       volEntry.readOnlyId);
  78   (*env)->SetIntField(env, volume, volume_backupIdField, volEntry.backupId);
  79   (*env)->SetLongField(env, volume, volume_creationDateField,
  80                        volEntry.creationDate);
  81   (*env)->SetLongField(env, volume, volume_lastAccessDateField,
  82                        volEntry.lastAccessDate);
  83   (*env)->SetLongField(env, volume, volume_lastUpdateDateField,
  84                        volEntry.lastUpdateDate);
  85   (*env)->SetLongField(env, volume, volume_lastBackupDateField,
  86                        volEntry.lastBackupDate);
  87   (*env)->SetLongField(env, volume, volume_copyCreationDateField,
  88                        volEntry.copyCreationDate);
  89   (*env)->SetIntField(env, volume, volume_accessesSinceMidnightField,
  90                       volEntry.accessesSinceMidnight);
  91   (*env)->SetIntField(env, volume, volume_fileCountField, volEntry.fileCount);
  92   (*env)->SetIntField(env, volume, volume_maxQuotaField, volEntry.maxQuota);
  93   (*env)->SetIntField(env, volume, volume_currentSizeField,
  94                       volEntry.currentSize);
  95
  96   // set status variable
  97   switch( volEntry.status ) {
  98   case VOS_OK :
  99       (*env)->SetIntField(env, volume, volume_statusField,
 100                           org_openafs_jafs_Volume_VOLUME_OK);
 101       break;
 102   case VOS_SALVAGE :
 103       (*env)->SetIntField(env, volume, volume_statusField,
 104                           org_openafs_jafs_Volume_VOLUME_SALVAGE);
 105       break;
 106   case VOS_NO_VNODE:
 107       (*env)->SetIntField(env, volume, volume_statusField,
 108                           org_openafs_jafs_Volume_VOLUME_NO_VNODE);
 109       break;
 110   case VOS_NO_VOL:
 111       (*env)->SetIntField(env, volume, volume_statusField,
 112                           org_openafs_jafs_Volume_VOLUME_NO_VOL);
 113       break;
 114   case VOS_VOL_EXISTS:
 115       (*env)->SetIntField(env, volume, volume_statusField,
 116                           org_openafs_jafs_Volume_VOLUME_VOL_EXISTS);
 117       break;
 118   case VOS_NO_SERVICE:
 119       (*env)->SetIntField(env, volume, volume_statusField,
 120                           org_openafs_jafs_Volume_VOLUME_NO_SERVICE);
 121       break;
 122   case VOS_OFFLINE:
 123       (*env)->SetIntField(env, volume, volume_statusField,
 124                           org_openafs_jafs_Volume_VOLUME_OFFLINE);
 125       break;
 126   case VOS_ONLINE:
 127       (*env)->SetIntField(env, volume, volume_statusField,
 128                           org_openafs_jafs_Volume_VOLUME_ONLINE);
 129       break;
 130   case VOS_DISK_FULL:
 131       (*env)->SetIntField(env, volume, volume_statusField,
 132                           org_openafs_jafs_Volume_VOLUME_DISK_FULL);
 133       break;
 134   case VOS_OVER_QUOTA:
 135       (*env)->SetIntField(env, volume, volume_statusField,
 136                           org_openafs_jafs_Volume_VOLUME_OVER_QUOTA);
 137       break;
 138   case VOS_BUSY:
 139       (*env)->SetIntField(env, volume, volume_statusField,
 140                           org_openafs_jafs_Volume_VOLUME_BUSY);
 141       break;
 142   case VOS_MOVED:
 143       (*env)->SetIntField(env, volume, volume_statusField,
 144                           org_openafs_jafs_Volume_VOLUME_MOVED);
 145       break;
 146   default:
 147       throwAFSException( env, volEntry.status );
 148   }
 149
 150   // set disposition variable
 151   switch( volEntry.volumeDisposition ) {
 152   case VOS_OK :
 153       (*env)->SetIntField(env, volume, volume_dispositionField,
 154                           org_openafs_jafs_Volume_VOLUME_OK);
 155       break;
 156   case VOS_SALVAGE :
 157       (*env)->SetIntField(env, volume, volume_dispositionField,
 158                           org_openafs_jafs_Volume_VOLUME_SALVAGE);
 159       break;
 160   case VOS_NO_VNODE:
 161       (*env)->SetIntField(env, volume, volume_dispositionField,
 162                           org_openafs_jafs_Volume_VOLUME_NO_VNODE);
 163       break;
 164   case VOS_NO_VOL:
 165       (*env)->SetIntField(env, volume, volume_dispositionField,
 166                           org_openafs_jafs_Volume_VOLUME_NO_VOL);
 167       break;
 168   case VOS_VOL_EXISTS:
 169       (*env)->SetIntField(env, volume, volume_dispositionField,
 170                           org_openafs_jafs_Volume_VOLUME_VOL_EXISTS);
 171       break;
 172   case VOS_NO_SERVICE:
 173       (*env)->SetIntField(env, volume, volume_dispositionField,
 174                           org_openafs_jafs_Volume_VOLUME_NO_SERVICE);
 175       break;
 176   case VOS_OFFLINE:
 177       (*env)->SetIntField(env, volume, volume_dispositionField,
 178                           org_openafs_jafs_Volume_VOLUME_OFFLINE);
 179       break;
 180   case VOS_ONLINE:
 181       (*env)->SetIntField(env, volume, volume_dispositionField,
 182                           org_openafs_jafs_Volume_VOLUME_ONLINE);
 183       break;
 184   case VOS_DISK_FULL:
 185       (*env)->SetIntField(env, volume, volume_dispositionField,
 186                           org_openafs_jafs_Volume_VOLUME_DISK_FULL);
 187       break;
 188   case VOS_OVER_QUOTA:
 189       (*env)->SetIntField(env, volume, volume_dispositionField,
 190                           org_openafs_jafs_Volume_VOLUME_OVER_QUOTA);
 191       break;
 192   case VOS_BUSY:
 193       (*env)->SetIntField(env, volume, volume_dispositionField,
 194                           org_openafs_jafs_Volume_VOLUME_BUSY);
 195       break;
 196   case VOS_MOVED:
 197       (*env)->SetIntField(env, volume, volume_dispositionField,
 198                           org_openafs_jafs_Volume_VOLUME_MOVED);
 199       break;
 200   default:
 201       throwAFSException( env, volEntry.volumeDisposition );
 202   }
 203
 204   // set type variable
 205   switch( volEntry.type ) {
 206   case VOS_READ_WRITE_VOLUME:
 207       (*env)->SetIntField(env, volume, volume_typeField,
 208                           org_openafs_jafs_Volume_VOLUME_TYPE_READ_WRITE);
 209       break;
 210   case VOS_READ_ONLY_VOLUME:
 211       (*env)->SetIntField(env, volume, volume_typeField,
 212                           org_openafs_jafs_Volume_VOLUME_TYPE_READ_ONLY);
 213       break;
 214   case VOS_BACKUP_VOLUME:
 215       (*env)->SetIntField(env, volume, volume_typeField,
 216                           org_openafs_jafs_Volume_VOLUME_TYPE_BACKUP);
 217       break;
 218   default:
 219       throwAFSException( env, volEntry.type );
 220   }
 221
 222 }
 223
 224 /**
 225  * Fills in the information fields of the provided Volume.
 226  *
 227  * env      the Java environment
 228  * cls      the current Java class
 229  * cellHandle    the handle of the cell to which the volume belongs
 230  * serverHandle  the vos handle of the server on which the volume
 231  *                      resides
 232  * partition   the numeric id of the partition on which the volume
 233  *                    resides
 234  * volId  the numeric id of the volume for which to get the info
 235  * jvolumeObject   the Volume object in which to fill in
 236  *                        the information
 237  */
 238 JNIEXPORT void JNICALL
 239 Java_org_openafs_jafs_Volume_getVolumeInfo (JNIEnv *env, jclass cls,
 240                                                jlong cellHandle,
 241                                                jlong serverHandle,
 242                                                jint partition, jint volID,
 243                                                jobject jvolumeObject) {
 244
 245   afs_status_t ast;
 246   vos_volumeEntry_t volEntry;
 247
 248   // get the volume entry
 249   if ( !vos_VolumeGet( (void *) cellHandle, (void *) serverHandle, NULL,
 250                        (unsigned int) partition, (unsigned int) volID,
 251                        &volEntry, &ast ) ) {
 252     throwAFSException( env, ast );
 253     return;
 254   }
 255
 256   fillVolumeInfo( env, jvolumeObject, volEntry );
 257
 258 }
 259
 260 /**
 261  * Creates a volume on a particular partition.
 262  *
 263  * env      the Java environment
 264  * cls      the current Java class
 265  * cellHandle    the handle of the cell in which to create the volume
 266  * serverHandle  the vos handle of the server on which to create
 267  *                      the volume
 268  * partition   the numeric id of the partition on which to create
 269  *                    the volume
 270  * jvolName   the name of the volume to create
 271  * quota    the amount of space (in KB) to set as this volume's quota
 272  * returns the numeric ID assigned to the volume
 273  */
 274 JNIEXPORT jint JNICALL
 275 Java_org_openafs_jafs_Volume_create (JNIEnv *env, jclass cls,
 276                                         jlong cellHandle, jlong serverHandle,
 277                                         jint partition, jstring jvolName,
 278                                         jint quota) {
 279
 280   afs_status_t ast;
 281   const char *volName;
 282   int id;
 283
 284   if( jvolName != NULL ) {
 285     volName = (*env)->GetStringUTFChars(env, jvolName, 0);
 286     if( !volName ) {
 287         throwAFSException( env, JAFSADMNOMEM );
 288         return;
 289     }
 290   } else {
 291     volName = NULL;
 292   }
 293
 294   if( !vos_VolumeCreate( (void *) cellHandle, (void *) serverHandle, NULL,
 295                          (unsigned int) partition, volName,
 296                          (unsigned int) quota, &id, &ast ) ) {
 297     if( volName != NULL ) {
 298       (*env)->ReleaseStringUTFChars(env, jvolName, volName);
 299     }
 300     throwAFSException( env, ast );
 301     return;
 302   }
 303
 304   if( volName != NULL ) {
 305     (*env)->ReleaseStringUTFChars(env, jvolName, volName);
 306   }
 307   return (jint) id;
 308
 309 }
 310
 311 /**
 312  * Deletes a volume from a particular partition.
 313  *
 314  * env      the Java environment
 315  * cls      the current Java class
 316  * cellHandle    the handle of the cell in which to delete the volume
 317  * serverHandle  the vos handle of the server from which to delete
 318  *                      the volume
 319  * partition   the numeric id of the partition from which to delete
 320  *                    the volume
 321  * volId   the numeric id of the volume to delete
 322  */
 323 JNIEXPORT void JNICALL
 324 Java_org_openafs_jafs_Volume_delete (JNIEnv *env, jclass cls,
 325                                         jlong cellHandle, jlong serverHandle,
 326                                         jint partition, jint volID) {
 327
 328   afs_status_t ast;
 329
 330   if( !vos_VolumeDelete( (void *) cellHandle, (void *) serverHandle, NULL,
 331                          (unsigned int) partition,
 332                          (unsigned int) volID, &ast ) ) {
 333     throwAFSException( env, ast );
 334     return;
 335   }
 336
 337 }
 338
 339 /**
 340  * Creates a backup volume for the specified regular volume.
 341  *
 342  * env      the Java environment
 343  * cls      the current Java class
 344  * cellHandle    the handle of the cell to which the volume belongs
 345  * volId  the numeric id of the volume for which to create a backup
 346  *               volume
 347  */
 348 JNIEXPORT void JNICALL
 349 Java_org_openafs_jafs_Volume_createBackupVolume (JNIEnv *env, jclass cls,
 350                                                     jlong cellHandle,
 351                                                     jint volID) {
 352
 353   afs_status_t ast;
 354
 355   if( !vos_BackupVolumeCreate( (void *) cellHandle, NULL,
 356                                (unsigned int) volID, &ast ) ) {
 357     throwAFSException( env, ast );
 358     return;
 359   }
 360
 361 }
 362
 363 /**
 364  * Creates a read-only volume for the specified regular volume.
 365  *
 366  * env      the Java environment
 367  * cls      the current Java class
 368  * cellHandle    the handle of the cell to which the volume belongs
 369  * serverHandle  the vos handle of the server on which the read-only
 370  *                      volume is to reside
 371  * partition   the numeric id of the partition on which the read-only
 372  *             volume is to reside
 373  * volId  the numeric id of the volume for which to
 374  *               create a read-only volume
 375  */
 376 JNIEXPORT void JNICALL
 377 Java_org_openafs_jafs_Volume_createReadOnlyVolume (JNIEnv *env, jclass cls,
 378                                                       jlong cellHandle,
 379                                                       jlong serverHandle,
 380                                                       jint partition,
 381                                                       jint volID) {
 382
 383   afs_status_t ast;
 384
 385   if( !vos_VLDBReadOnlySiteCreate( (void *) cellHandle, (void *) serverHandle,
 386                                    NULL, (unsigned int) partition,
 387                                    (unsigned int) volID, &ast ) ) {
 388     throwAFSException( env, ast );
 389     return;
 390   }
 391
 392 }
 393
 394 /**
 395  * Deletes a read-only volume for the specified regular volume.
 396  *
 397  * env      the Java environment
 398  * cls      the current Java class
 399  * cellHandle    the handle of the cell to which the volume belongs
 400  * serverHandle  the vos handle of the server on which the read-only
 401  *                      volume residea
 402  * partition   the numeric id of the partition on which the read-only
 403  *                     volume resides
 404  * volId  the numeric read-write id of the volume for which to
 405  *               delete the read-only volume
 406  */
 407 JNIEXPORT void JNICALL
 408 Java_org_openafs_jafs_Volume_deleteReadOnlyVolume (JNIEnv *env, jclass cls,
 409                                                       jlong cellHandle,
 410                                                       jlong serverHandle,
 411                                                       jint partition,
 412                                                       jint volID) {
 413
 414   afs_status_t ast;
 415
 416   if( !vos_VLDBReadOnlySiteDelete( (void *) cellHandle, (void *) serverHandle,
 417                                    NULL, (unsigned int) partition,
 418                                    (unsigned int) volID, &ast ) ) {
 419     throwAFSException( env, ast );
 420     return;
 421   }
 422
 423 }
 424
 425 /**
 426  * Changes the quota of the specified volume.
 427  *
 428  * env      the Java environment
 429  * cls      the current Java class
 430  * cellHandle    the handle of the cell to which the volume belongs
 431  * serverHandle  the vos handle of the server on which the volume
 432  *                      resides
 433  * partition   the numeric id of the partition on which the volume
 434  *                    resides
 435  * volId  the numeric id of the volume for which to change the quota
 436  * newQuota    the new quota (in KB) to assign the volume
 437  */
 438 JNIEXPORT void JNICALL
 439 Java_org_openafs_jafs_Volume_changeQuota (JNIEnv *env, jclass cls,
 440                                              jlong cellHandle,
 441                                              jlong serverHandle,
 442                                              jint partition, jint volID,
 443                                              jint newQuota) {
 444
 445   afs_status_t ast;
 446
 447   if( !vos_VolumeQuotaChange( (void *) cellHandle, (void *) serverHandle,
 448                               NULL, (unsigned int) partition,
 449                               (unsigned int) volID, (unsigned int) newQuota,
 450                               &ast ) ) {
 451     throwAFSException( env, ast );
 452     return;
 453   }
 454
 455 }
 456
 457 /**
 458  * Move the specified volume to a different site.
 459  *
 460  * env      the Java environment
 461  * cls      the current Java class
 462  * cellHandle    the handle of the cell to which the volume belongs
 463  * fromServerHandle  the vos handle of the server on which the volume
 464  *                          currently resides
 465  * fromPartition   the numeric id of the partition on which the volume
 466  *                        currently resides
 467  * toServerHandle  the vos handle of the server to which the volume
 468  *                        should be moved
 469  * toPartition   the numeric id of the partition to which the volume
 470  *                      should be moved
 471  * volId  the numeric id of the volume to move
 472  */
 473 JNIEXPORT void JNICALL
 474 Java_org_openafs_jafs_Volume_move
 475   (JNIEnv *env, jclass cls, jlong cellHandle, jlong fromServerHandle,
 476    jint fromPartition, jlong toServerHandle, jint toPartition, jint volID)
 477 {
 478   afs_status_t ast;
 479
 480   if( !vos_VolumeMove( (void *) cellHandle, NULL, (unsigned int) volID,
 481                        (void *) fromServerHandle, (unsigned int) fromPartition,
 482                        (void *) toServerHandle, (unsigned int) toPartition,
 483                        &ast ) ) {
 484     throwAFSException( env, ast );
 485     return;
 486   }
 487
 488 }
 489
 490 /**
 491  * Releases the specified volume that has readonly volume sites.
 492  *
 493  * env      the Java environment
 494  * cls      the current Java class
 495  * cellHandle    the handle of the cell to which the volume belongs
 496  * volId  the numeric id of the volume to release
 497  * forceComplete  whether or not to force a complete release
 498  */
 499 JNIEXPORT void JNICALL
 500 Java_org_openafs_jafs_Volume_release
 501   (JNIEnv *env, jclass cls, jlong cellHandle, jint volID, jboolean forceComplete)
 502 {
 503   afs_status_t ast;
 504   vos_force_t force;
 505
 506   if( forceComplete ) {
 507     force = VOS_FORCE;
 508   } else {
 509     force = VOS_NORMAL;
 510   }
 511
 512   if( !vos_VolumeRelease( (void *) cellHandle, NULL, (unsigned int) volID,
 513                           force, &ast )) {
 514     throwAFSException( env, ast );
 515     return;
 516   }
 517
 518 }
 519
 520 /**
 521  * Dumps the specified volume to a file.
 522  *
 523  * env      the Java environment
 524  * cls      the current Java class
 525  * cellHandle    the handle of the cell to which the volume belongs
 526  * serverHandle  the vos handle of the server on which the volume
 527  *                      resides
 528  * partition   the numeric id of the partition on which the
 529  *                    volume resides
 530  * volId  the numeric id of the volume to dump
 531  * startTime   files with a modification time >= to this time will
 532  *                    be dumped
 533  * jdumpFile   the full path of the file to which to dump
 534  */
 535 JNIEXPORT void JNICALL
 536 Java_org_openafs_jafs_Volume_dump (JNIEnv *env, jclass cls,
 537                                       jlong cellHandle, jlong serverHandle,
 538                                       jint partition, jint volID,
 539                                       jint startTime, jstring jdumpFile) {
 540
 541   afs_status_t ast;
 542   const char *dumpFile;
 543
 544   if( jdumpFile != NULL ) {
 545     dumpFile = (*env)->GetStringUTFChars(env, jdumpFile, 0);
 546     if( !dumpFile ) {
 547         throwAFSException( env, JAFSADMNOMEM );
 548         return;
 549     }
 550   } else {
 551     dumpFile = NULL;
 552   }
 553
 554   if( !vos_VolumeDump( (void *) cellHandle, (void *) serverHandle, NULL,
 555                        (unsigned int *) &partition, (unsigned int) volID,
 556                        (unsigned int) startTime, dumpFile, &ast ) ) {
 557     if( dumpFile != NULL ) {
 558       (*env)->ReleaseStringUTFChars(env, jdumpFile, dumpFile);
 559     }
 560     throwAFSException( env, ast );
 561     return;
 562   }
 563
 564   if( dumpFile != NULL ) {
 565     (*env)->ReleaseStringUTFChars(env, jdumpFile, dumpFile);
 566   }
 567
 568 }
 569
 570 /**
 571  * Restores the specified volume from a dump file.
 572  *
 573  * env      the Java environment
 574  * cls      the current Java class
 575  * cellHandle    the handle of the cell to which the volume belongs
 576  * serverHandle  the vos handle of the server on which the volume is
 577  *                      to reside
 578  * partition   the numeric id of the partition on which the volume is
 579  *                    to reside
 580  * volId  the numeric id to assign the restored volume (can be 0)
 581  * jvolName  the name of the volume to restore as
 582  * jdumpFile   the full path of the dump file from which to restore
 583  * incremental  if true, restores an incremental dump over an existing
 584  *                     volume (server and partition values must correctly
 585  *                     indicate the current position of the existing volume),
 586  *                     otherwise restores a full dump
 587  */
 588 JNIEXPORT void JNICALL
 589 Java_org_openafs_jafs_Volume_restore (JNIEnv *env, jclass cls,
 590                                          jlong cellHandle, jlong serverHandle,
 591                                          jint partition, jint volID,
 592                                          jstring jvolName, jstring jdumpFile,
 593                                          jboolean incremental) {
 594
 595   afs_status_t ast;
 596   const char *volName;
 597   const char *dumpFile;
 598   int *volumeIDp;
 599   vos_volumeRestoreType_t vrt;
 600
 601   if( jvolName != NULL ) {
 602     volName = (*env)->GetStringUTFChars(env, jvolName, 0);
 603     if( !volName ) {
 604         throwAFSException( env, JAFSADMNOMEM );
 605         return;
 606     }
 607   } else {
 608     volName = NULL;
 609   }
 610
 611   if( jdumpFile != NULL ) {
 612     dumpFile = (*env)->GetStringUTFChars(env, jdumpFile, 0);
 613     if( !dumpFile ) {
 614       if( volName != NULL ) {
 615         (*env)->ReleaseStringUTFChars(env, jvolName, volName);
 616       }
 617       throwAFSException( env, JAFSADMNOMEM );
 618       return;
 619     }
 620   } else {
 621     dumpFile = NULL;
 622   }
 623
 624   if( volID == 0 ) {
 625     volumeIDp = NULL;
 626   } else {
 627     volumeIDp = (int *) &volID;
 628   }
 629
 630   if( incremental ) {
 631     vrt = VOS_RESTORE_INCREMENTAL;
 632   } else {
 633     vrt = VOS_RESTORE_FULL;
 634   }
 635
 636   if( !vos_VolumeRestore( (void *) cellHandle, (void *) serverHandle, NULL,
 637                           (unsigned int) partition, (unsigned int *) volumeIDp,
 638                           volName, dumpFile, vrt, &ast ) ) {
 639     if( volName != NULL ) {
 640       (*env)->ReleaseStringUTFChars(env, jvolName, volName);
 641     }
 642     if( dumpFile != NULL ) {
 643       (*env)->ReleaseStringUTFChars(env, jdumpFile, dumpFile);
 644     }
 645     throwAFSException( env, ast );
 646     return;
 647   }
 648
 649   if( dumpFile != NULL ) {
 650     (*env)->ReleaseStringUTFChars(env, jdumpFile, dumpFile);
 651   }
 652   if( volName != NULL ) {
 653     (*env)->ReleaseStringUTFChars(env, jvolName, volName);
 654   }
 655
 656 }
 657
 658 /**
 659  * Renames the specified read-write volume.
 660  *
 661  * env      the Java environment
 662  * cls      the current Java class
 663  * cellHandle    the handle of the cell to which the volume belongs
 664  * volId  the numeric id of the read-write volume to rename
 665  * jnewName  the new name for the volume
 666  */
 667 JNIEXPORT void JNICALL
 668 Java_org_openafs_jafs_Volume_rename (JNIEnv *env, jclass cls,
 669                                         jlong cellHandle, jint volID,
 670                                         jstring jnewName) {
 671
 672   afs_status_t ast;
 673   const char *newName;
 674
 675   if( jnewName != NULL ) {
 676     newName = (*env)->GetStringUTFChars(env, jnewName, 0);
 677     if( !newName ) {
 678         throwAFSException( env, JAFSADMNOMEM );
 679         return;
 680     }
 681   } else {
 682     newName = NULL;
 683   }
 684
 685   if( !vos_VolumeRename( (void *) cellHandle, NULL, (unsigned int) volID,
 686                          newName, &ast ) ) {
 687     if( newName != NULL ) {
 688       (*env)->ReleaseStringUTFChars(env, jnewName, newName);
 689     }
 690     throwAFSException( env, ast );
 691     return;
 692   }
 693
 694   if( newName != NULL ) {
 695     (*env)->ReleaseStringUTFChars(env, jnewName, newName);
 696   }
 697
 698 }
 699
 700 /**
 701  * "Mounts" the specified volume, bringing it online.
 702  *
 703  * env      the Java environment
 704  * cls      the current Java class
 705  * serverHandle  the vos handle of the server on which the volume
 706  *                      resides
 707  * partition   the numeric id of the partition on which the volume
 708  *                    resides
 709  * volId  the numeric id of the volume to bring online
 710  * sleepTime  ?  (not sure what this is yet, possibly a time to wait
 711  *                      before brining it online)
 712  * offline   ?  (not sure what this is either, probably the current
 713  *                     status of the volume -- busy or offline)
 714  */
 715 JNIEXPORT void JNICALL
 716 Java_org_openafs_jafs_Volume_mount (JNIEnv *env, jclass cls,
 717                                        jlong serverHandle, jint partition,
 718                                        jint volID, jint sleepTime,
 719                                        jboolean offline) {
 720
 721   afs_status_t ast;
 722   vos_volumeOnlineType_t volumeStatus;
 723
 724   if( offline ) {
 725     volumeStatus = VOS_ONLINE_OFFLINE;
 726   } else {
 727     volumeStatus = VOS_ONLINE_BUSY;
 728   }
 729
 730   if( !vos_VolumeOnline( (void *) serverHandle, NULL, (unsigned int) partition,
 731                          (unsigned int) volID, (unsigned int) sleepTime,
 732                          volumeStatus, &ast ) ) {
 733     throwAFSException( env, ast );
 734     return;
 735   }
 736
 737 }
 738
 739 /**
 740  * "Unmounts" the specified volume, bringing it offline.
 741  *
 742  * env      the Java environment
 743  * cls      the current Java class
 744  * serverHandle  the vos handle of the server on which the volume
 745  *                      resides
 746  * partition   the numeric id of the partition on which the volume
 747  *                    resides
 748  * volId  the numeric id of the volume to bring offline
 749  */
 750 JNIEXPORT void JNICALL
 751 Java_org_openafs_jafs_Volume_unmount (JNIEnv *env, jclass cls,
 752                                          jlong serverHandle, jint partition,
 753                                          jint volID) {
 754
 755   afs_status_t ast;
 756
 757   if( !vos_VolumeOffline( (void *) serverHandle, NULL,
 758                           (unsigned int) partition, (unsigned int) volID,
 759                           &ast ) ) {
 760     throwAFSException( env, ast );
 761     return;
 762   }
 763
 764 }
 765
 766 /**
 767  * Locks the VLDB entry specified volume
 768  *
 769  * env      the Java environment
 770  * cls      the current Java class
 771  * cellHandle  the handle of the cell on which the volume resides
 772  * volId  the numeric id of the volume to lock
 773  */
 774 JNIEXPORT void JNICALL
 775 Java_org_openafs_jafs_Volume_lock (JNIEnv *env, jclass cls,
 776                                       jlong cellHandle, jint volID ) {
 777
 778   afs_status_t ast;
 779
 780   if( !vos_VLDBEntryLock( (void *) cellHandle, NULL, (unsigned int) volID,
 781                           &ast ) ) {
 782     throwAFSException( env, ast );
 783     return;
 784   }
 785
 786 }
 787
 788 /**
 789  * Unlocks the VLDB entry of the specified volume
 790  *
 791  * env      the Java environment
 792  * cls      the current Java class
 793  * cellHandle  the handle of the cell on which the volume resides
 794  * volId  the numeric id of the volume to unlock
 795  */
 796 JNIEXPORT void JNICALL
 797 Java_org_openafs_jafs_Volume_unlock (JNIEnv *env, jclass cls,
 798                                         jlong cellHandle, jint volID) {
 799
 800   afs_status_t ast;
 801
 802   if( !vos_VLDBEntryUnlock( (void *) cellHandle, NULL, (unsigned int) volID,
 803                             &ast ) ) {
 804     throwAFSException( env, ast );
 805     return;
 806   }
 807
 808 }
 809
 810 /**
 811  * Translates a volume name into a volume id
 812  *
 813  * env      the Java environment
 814  * cls      the current Java class
 815  * cellHandle    the handle of the cell to which the volume belongs
 816  * jname  the name of the volume in question, cannot end in backup or
 817  *              readonly
 818  * type  the type of volume: read-write, read-only, or backup.
 819  *              Acceptable values are:
 820  *              org_openafs_jafs_Volume_VOLUME_TYPE_READ_WRITE
 821  *              org_openafs_jafs_Volume_VOLUME_TYPE_READ_ONLY
 822  *              org_openafs_jafs_Volume_VOLUME_TYPE_BACKUP
 823  * returns   the id of the volume in question
 824  */
 825 JNIEXPORT jint JNICALL
 826 Java_org_openafs_jafs_Volume_translateNameToID (JNIEnv *env, jclass cls,
 827                                                    jlong cellHandle,
 828                                                    jstring jname, jint type) {
 829
 830   afs_status_t ast;
 831   const char *name;
 832   vos_vldbEntry_t vldbEntry;
 833
 834   if( jname != NULL ) {
 835     name = (*env)->GetStringUTFChars(env, jname, 0);
 836     if( !name ) {
 837         throwAFSException( env, JAFSADMNOMEM );
 838         return;
 839     }
 840   } else {
 841     name = NULL;
 842   }
 843
 844   // get the id
 845   if( !vos_VLDBGet( (void *) cellHandle, NULL, NULL, name,
 846                     &vldbEntry, &ast ) ) {
 847     if( name != NULL ) {
 848       (*env)->ReleaseStringUTFChars(env, jname, name);
 849     }
 850     throwAFSException( env, ast );
 851     return -1;
 852   }
 853
 854   if( name != NULL ) {
 855     (*env)->ReleaseStringUTFChars(env, jname, name);
 856   }
 857
 858   if( type == org_openafs_jafs_Volume_VOLUME_TYPE_READ_WRITE ) {
 859     return vldbEntry.volumeId[VOS_READ_WRITE_VOLUME];
 860   } else if( type == org_openafs_jafs_Volume_VOLUME_TYPE_READ_ONLY ) {
 861     return vldbEntry.volumeId[VOS_READ_ONLY_VOLUME];
 862   } else {
 863     return vldbEntry.volumeId[VOS_BACKUP_VOLUME];
 864   }
 865
 866 }
 867
 868
 869 // reclaim global memory being used by this portion
 870 JNIEXPORT void JNICALL
 871 Java_org_openafs_jafs_Volume_reclaimVolumeMemory (JNIEnv *env, jclass cls) {
 872
 873   if( volumeCls ) {
 874       (*env)->DeleteGlobalRef(env, volumeCls);
 875       volumeCls = 0;
 876   }
 877
 878 }
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