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hdf5/test/mount.c
Quincey Koziol 95bf191857 [svn-r7320] Purpose: 
Refactored code

Description:
    Chase changes for the 'fileno' and 'objno' fields in H5G_stat_t

Platforms tested:
    h5committested
2003-08-08 14:25:18 -05:00

1070 lines
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Wednesday, October 7, 1998
*
* Purpose: Tests file mounting.
*/
#include "h5test.h"
const char *FILENAME[] = {
"mount_1",
"mount_2",
"mount_3",
NULL
};
/*-------------------------------------------------------------------------
* Function: setup
*
* Purpose: Create some files and populate them with a few groups.
*
* Return: Success: 0
*
* Failure: -1
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
setup(hid_t fapl)
{
hid_t file=-1;
char filename[1024];
/* file 1 */
h5_fixname(FILENAME[0], fapl, filename, sizeof filename);
if ((file=H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl))<0)
goto error;
if (H5Gclose(H5Gcreate(file, "/mnt1", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/mnt1/file1", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/mnt_unlink", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/mnt_move_a", 0))<0) goto error;
if (H5Glink(file, H5G_LINK_HARD, "/mnt1/file1", "/file1")<0) goto error;
if (H5Glink(file, H5G_LINK_HARD, "/mnt1", "/mnt1_link")<0) goto error;
if (H5Fclose(file)<0) goto error;
/* file 2 */
h5_fixname(FILENAME[1], fapl, filename, sizeof filename);
if ((file=H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl))<0)
goto error;
if (H5Gclose(H5Gcreate(file, "/file2", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/rename_a", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/rename_b", 0))<0) goto error;
if (H5Gclose(H5Gcreate(file, "/rename_a/x", 0))<0) goto error;
if (H5Fclose(file)<0) goto error;
/* file 3 */
h5_fixname(FILENAME[2], fapl, filename, sizeof filename);
if ((file=H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl))<0)
goto error;
if (H5Fclose(file)<0) goto error;
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file);
} H5E_END_TRY;
return -1;
}
/*-------------------------------------------------------------------------
* Function: test_basic
*
* Purpose: Mount file1 at file2:/mnt1 and try accessing an object in
* file2. Then unmount.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_basic(hid_t fapl)
{
hid_t file1=-1, file2=-1, grp=-1;
char filename1[1024], filename2[1024];
TESTING("basic functionality");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
if ((grp=H5Gopen(file1, "/mnt1/file2"))<0) goto error;
if (H5Gclose(grp)<0) goto error;
if (H5Funmount(file1, "/mnt1")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_illegal
*
* Purpose: Test things that are illegal to do. We should get a failure
* from the library for each of them.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_illegal(hid_t fapl)
{
hid_t file1=-1, file2=-1, file3=-1, mnt=-1;
herr_t status;
char filename1[1024], filename2[1024], filename3[1024];
TESTING("illegal mount operations");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
h5_fixname(FILENAME[2], fapl, filename3, sizeof filename3);
/* Open the files */
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0 ||
(file3=H5Fopen(filename3, H5F_ACC_RDONLY, fapl))<0)
goto error;
/* Try mounting a file on itself */
H5E_BEGIN_TRY {
status = H5Fmount(file1, "/mnt1", file1, H5P_DEFAULT);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Mounting a file on itself should have failed.");
goto error;
}
/*
* Try mounting two files at the same place. We have to open the mount
* point before we mount the first file or we'll end up mounting file3 at
* the root of file2 and the mount will succeed.
*/
if ((mnt=H5Gopen(file1, "/mnt1"))<0) goto error;
if (H5Fmount(mnt, ".", file2, H5P_DEFAULT)<0) goto error;
H5E_BEGIN_TRY {
status = H5Fmount(mnt, ".", file3, H5P_DEFAULT);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Mounting two files at one mount point should have failed.");
goto error;
}
if (H5Funmount(mnt, ".")<0) goto error;
if (H5Gclose(mnt)<0) goto error;
/* Close everything and return */
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
if (H5Fclose(file3)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(mnt);
H5Fclose(file1);
H5Fclose(file2);
H5Fclose(file3);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_hide
*
* Purpose: The previous contents of the mount point is temporarily
* hidden. If objects in that group had names from other groups
* then the objects will still be visible by those other names.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_hide(hid_t fapl)
{
hid_t file1=-1, file2=-1, grp=-1;
H5G_stat_t sb1, sb2;
char filename1[1024], filename2[1024];
TESTING("name hiding under mount point");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
/* Get information about file1:/mnt1/file1 for later */
if (H5Gget_objinfo(file1, "/mnt1/file1", TRUE, &sb1)<0) goto error;
/* Build the virtual file */
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* Original names under file1:/mnt1 should not be accessible */
H5E_BEGIN_TRY {
grp = H5Gopen(file1, "/mnt1/file1");
} H5E_END_TRY;
if (grp>=0) {
H5_FAILED();
puts(" Name is still accessible under mount point.");
goto error;
}
/*
* The original objects under file1:/mnt1 are still accessible by their
* other names. This is a rather stupid test but demonstrates a point.
*/
if (H5Gget_objinfo(file1, "/file1", TRUE, &sb2)<0) goto error;
if (sb1.fileno!=sb2.fileno || sb1.objno!=sb2.objno) {
H5_FAILED();
puts(" Hard link failed for hidden object.");
goto error;
}
/* Unmount and close objects */
if (H5Funmount(file1, "/mnt1")<0) goto error;
H5Fclose(file1);
H5Fclose(file2);
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(grp);
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_assoc
*
* Purpose: Opening the mount point is the same as opening the root group
* of the mounted file before the file was mounted.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Tuesday, October 13, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_assoc(hid_t fapl)
{
hid_t file1=-1, file2=-1;
H5G_stat_t sb1, sb2;
char filename1[1024], filename2[1024];
TESTING("mount point open");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Open the files */
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
/* Get information about the root of file2 */
if (H5Gget_objinfo(file2, "/", TRUE, &sb1)<0) goto error;
/* Create the virtual file */
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/*
* Get info about the mount point -- should be the same as the root group
* of file2.
*/
if (H5Gget_objinfo(file1, "/mnt1", TRUE, &sb2)<0) goto error;
if (sb1.fileno!=sb2.fileno || sb1.objno!=sb2.objno) {
H5_FAILED();
puts(" Association failed.");
goto error;
}
/* Shut down */
if (H5Funmount(file1, "/mnt1_link")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file2);
H5Fclose(file1);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_mntlnk
*
* Purpose: The mount point is actually an OID (not a name) so if there
* are other names for that group then the root group of the
* child will be visible in all those names.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_mntlnk(hid_t fapl)
{
hid_t file1=-1, file2=-1, grp=-1;
char filename1[1024], filename2[1024];
TESTING("multi-linked mount point");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/*
* Can we see file2:/file2 as both file1:/mnt1/file2 and
* file1:/mnt1_link/file2?
*/
if ((grp=H5Gopen(file1, "/mnt1/file2"))<0) goto error;
if (H5Gclose(grp)<0) goto error;
if ((grp=H5Gopen(file1, "/mnt1_link/file2"))<0) goto error;
if (H5Gclose(grp)<0) goto error;
/* Unlink using second name */
if (H5Funmount(file1, "/mnt1_link")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(grp);
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_move
*
* Purpose: An object cannot be moved or renamed with H5Gmove() in such a
* way that the new location would be in a different file than
* the original location.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_move(hid_t fapl)
{
hid_t file1=-1, file2=-1;
herr_t status;
char filename1[1024], filename2[1024];
TESTING("object renaming");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* First rename an object in the mounted file, then try it across files */
if (H5Gmove(file1, "/mnt1/rename_a/x", "/mnt1/rename_b/y")<0) goto error;
H5E_BEGIN_TRY {
status = H5Gmove(file1, "/mnt1/rename_b/y", "/y");
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Moving an object across files should't have been possible");
goto error;
}
/* Shut down */
if (H5Funmount(file1, "/mnt1")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_preopen
*
* Purpose: Objects that are opened under the mount point before the
* child is mounted will remain accessible.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_preopen(hid_t fapl)
{
hid_t file1=-1, file2=-1, grp=-1;
char filename1[1024], filename2[1024];
TESTING("preopening objects under the mount point");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
/* Open something under the mount point */
if ((grp=H5Gopen(file1, "/mnt1/file1"))<0) goto error;
/* Build the virtual file */
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* Now access the thing we previously opened */
if (H5Gget_objinfo(grp, ".", TRUE, NULL)<0) goto error;
/* Shut down */
if (H5Funmount(file1, "/mnt1")<0) goto error;
if (H5Gclose(grp)<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(grp);
H5Fclose(file2);
H5Fclose(file1);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_postopen
*
* Purpose: Objects that are open in a mounted file remain accessible
* after the file is unmounted. Unmounting the file doesn't
* close the file.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 14, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_postopen(hid_t fapl)
{
hid_t file1=-1, file2=-1, grp=-1;
char filename1[1024], filename2[1024];
TESTING("open object access after unmount");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Create the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDONLY, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDONLY, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* Open some object in the mounted file */
if ((grp=H5Gopen(file1, "/mnt1/file2"))<0) goto error;
/* Unmount the file */
if (H5Funmount(file1, "/mnt1")<0) goto error;
/* Now access the thing we previously opened */
if (H5Gget_objinfo(grp, ".", TRUE, NULL)<0) goto error;
/* Try accessing it from the file */
if (H5Gget_objinfo(file2, "/file2", TRUE, NULL)<0) goto error;
/* Shut down */
if (H5Gclose(grp)<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(grp);
H5Fclose(file2);
H5Fclose(file1);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_unlink
*
* Purpose: Unlinking the mount point from its name doesn't affect its
* existence or the fact that there is a file that is mounted
* there.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Tuesday, October 13, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_unlink(hid_t fapl)
{
hid_t file1=-1, file2=-1, mnt=-1, root=-1;
herr_t status;
char filename1[1024], filename2[1024];
TESTING("mount point unlinking");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Open files */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
/*
* Opening the mount point before mounting opens the group in the parent
* file, but opening the mount point after mounting is the same as
* opening the root group of the child file.
*/
if ((mnt=H5Gopen(file1, "/mnt_unlink"))<0) goto error;
if (H5Fmount(file1, "/mnt_unlink", file2, H5P_DEFAULT)<0) goto error;
if ((root=H5Gopen(file1, "/mnt_unlink"))<0) goto error;
/*
* "/file2" of file2 should be visible as an absolute name through either
* file handle but not from the `mnt' handle since that handle was opened
* before the H5Fmount() and thus refers to the mount point itself rather
* than the group mounted there.
*/
if (H5Gget_objinfo(file1, "/mnt_unlink/file2", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(mnt, "/mnt_unlink/file2", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(root, "/mnt_unlink/file2", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(root, "file2", TRUE, NULL)<0) goto error;
H5E_BEGIN_TRY {
status = H5Gget_objinfo(mnt, "file2", TRUE, NULL);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Incorrect traversal from mount point!");
goto error;
}
/* Unlink the mount point */
if (H5Gunlink(file1, "/mnt_unlink")<0) goto error;
/*
* We should still be able to get to "/file2" of file2 by starting at
* `root' which is still open, but not by name.
*/
if (H5Gget_objinfo(root, "file2", TRUE, NULL)<0) goto error;
H5E_BEGIN_TRY {
status = H5Gget_objinfo(mnt, "file2", TRUE, NULL);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Traversal through mount point should not have worked!");
goto error;
}
H5E_BEGIN_TRY {
status = H5Gget_objinfo(file2, "/mnt_unlink/file2", TRUE, NULL);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Traversal through mount point should not have worked!");
goto error;
}
/*
* It's no longer possible to unmount the child by supplying the name of
* the mount point because the name doesn't exist anymore. We must
* supply the mount point directly.
*/
H5E_BEGIN_TRY {
status = H5Funmount(file1, "/mnt_unlink");
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Unmount by name should not have been allowed!");
goto error;
}
H5E_BEGIN_TRY {
status = H5Funmount(file2, "/");
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Unmount by name should not have been allowed!");
goto error;
}
if (H5Funmount(mnt, ".")<0) goto error;
/* Close files */
if (H5Gclose(mnt)<0) goto error;
if (H5Gclose(root)<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose(mnt);
H5Gclose(root);
H5Fclose(file2);
H5Fclose(file1);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_mvmpt
*
* Purpose: Try renaming the mount point while a file is mounted there.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Tuesday, October 13, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_mvmpt(hid_t fapl)
{
hid_t file1=-1, file2=-1;
char filename1[1024], filename2[1024];
TESTING("mount point renaming");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt_move_a", file2, H5P_DEFAULT)<0) goto error;
/* Rename the mount point */
if (H5Gmove(file1, "/mnt_move_a", "/mnt_move_b")<0) goto error;
/* Access something under the new name */
if (H5Gget_objinfo(file1, "/mnt_move_b/file2", TRUE, NULL)<0) goto error;
/* Shut down */
if (H5Funmount(file1, "/mnt_move_b")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_interlink
*
* Purpose: Hard links cannot cross file boundaries.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 14, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_interlink(hid_t fapl)
{
hid_t file1=-1, file2=-1, type=-1, space=-1, dset=-1;
char filename1[1024], filename2[1024];
herr_t status;
hsize_t cur_dims[1] = {2};
TESTING("interfile hard links");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* Try an interfile hard link directly */
H5E_BEGIN_TRY {
status = H5Glink(file1, H5G_LINK_HARD, "/mnt1/file2", "/file2");
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Interfile hard link should not have been allowed!");
goto error;
}
/* Try an interfile hard link by renaming something */
H5E_BEGIN_TRY {
status = H5Gmove(file1, "/mnt1/file2", "/file2");
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" Interfile renaming should not have been allowed!");
goto error;
}
/* Try an interfile hard link by sharing a data type */
if ((type=H5Tcopy(H5T_NATIVE_INT))<0) goto error;
if (H5Tcommit(file1, "/type1", type)<0) goto error;
if ((space=H5Screate_simple(1, cur_dims, NULL))<0) goto error;
H5E_BEGIN_TRY {
dset = H5Dcreate(file1, "/mnt1/file2/dset", type, space, H5P_DEFAULT);
} H5E_END_TRY;
if (dset>=0) {
H5_FAILED();
puts(" Dataset and shared type must be in the same file!");
goto error;
}
/* Shut down */
if (H5Sclose(space)<0) goto error;
if (H5Tclose(type)<0) goto error;
if (H5Funmount(file1, "/mnt1")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Dclose(dset);
H5Sclose(space);
H5Tclose(type);
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_uniformity
*
* Purpose: Any file handle is equivalent to any other file handle in the
* same virtual file.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 14, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_uniformity(hid_t fapl)
{
hid_t file1=-1, file2=-1;
char filename1[1024], filename2[1024];
TESTING("file handle uniformity");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/* Access some things from the file1 handle */
if (H5Gget_objinfo(file1, "/", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file1, "/mnt1", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file1, "mnt1", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file1, "/mnt1/file2", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file1, "mnt1/file2", TRUE, NULL)<0) goto error;
/* Access the same things from the file2 handle */
if (H5Gget_objinfo(file2, "/", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file2, "/mnt1", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file2, "mnt1", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file2, "/mnt1/file2", TRUE, NULL)<0) goto error;
if (H5Gget_objinfo(file2, "mnt1/file2", TRUE, NULL)<0) goto error;
/* Shut down */
if (H5Funmount(file1, "/mnt1")<0) goto error;
if (H5Fclose(file1)<0) goto error;
if (H5Fclose(file2)<0) goto error;
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: test_close
*
* Purpose: Closing any file handle closes the entire virtual file.
*
* Return: Success: 0
*
* Failure: number of errors
*
* Programmer: Robb Matzke
* Wednesday, October 14, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
test_close(hid_t fapl)
{
hid_t file1=-1, file2=-1;
char filename1[1024], filename2[1024];
herr_t status;
TESTING("file handle close");
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Build the virtual file */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/*
* Close file1 unmounting it from the virtual file. Objects in file2 are
* still accessible through the file2 handle, but nothing in file1 is
* accessible.
*/
if (H5Fclose(file1)<0) goto error;
H5E_BEGIN_TRY {
status = H5Gget_objinfo(file2, "/mnt1", TRUE, NULL);
} H5E_END_TRY;
if (status>=0) {
H5_FAILED();
puts(" File1 contents are still accessible!");
goto error;
}
if (H5Fclose(file2)<0) goto error;
/* Build the virtual file again */
if ((file1=H5Fopen(filename1, H5F_ACC_RDWR, fapl))<0 ||
(file2=H5Fopen(filename2, H5F_ACC_RDWR, fapl))<0)
goto error;
if (H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT)<0) goto error;
/*
* Close file2. It is not actually closed because it's a child of file1.
*/
if (H5Fclose(file2)<0) goto error;
if (H5Gget_objinfo(file1, "/mnt1/file2", TRUE, NULL)<0) goto error;
if (H5Fclose(file1)<0) goto error;
/* Shut down */
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Fclose(file1);
H5Fclose(file2);
} H5E_END_TRY;
return 1;
}
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: Test file mounting
*
* Return: Success: zero
*
* Failure: non-zero
*
* Programmer: Robb Matzke
* Wednesday, October 7, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
int nerrors = 0;
hid_t fapl = -1;
h5_reset();
fapl = h5_fileaccess();
if (setup(fapl)<0) goto error;
nerrors += test_basic(fapl);
nerrors += test_illegal(fapl);
nerrors += test_hide(fapl);
nerrors += test_assoc(fapl);
nerrors += test_mntlnk(fapl);
nerrors += test_unlink(fapl);
nerrors += test_move(fapl);
nerrors += test_mvmpt(fapl);
nerrors += test_preopen(fapl);
nerrors += test_postopen(fapl);
nerrors += test_interlink(fapl);
nerrors += test_uniformity(fapl);
nerrors += test_close(fapl);
if (nerrors) goto error;
puts("All mount tests passed.");
h5_cleanup(FILENAME, fapl);
return 0;
error:
puts("***** MOUNT ERRORS *****");
return 1;
}
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