/*-------------------------------------------------------------------------
* Function: external_link_env (moved from links.c)
*
* Purpose: Verify that the target file is found successfully in "tmp" directory
* via searching the pathnames set in the environment variable HDF5_EXT_PREFIX.
* 1. Target link: "extlinks_env1"
* 2. Main file: "extlinks_env0"
* 3. Target file is created in: "tmp/extlinks_env1"
* 4. The environment variable "HDF5_EXT_PREFIX" is set to ".:tmp"
*
* Return: Success: 0
* Failure: -1
*
* Programmer: Vailin Choi
* Feb. 20, 2008
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
external_link_env(hid_t fapl, hbool_t new_format)
{
hid_t fid = (-1); /* File ID */
hid_t gid = (-1); /* Group IDs */
const char *envval = NULL; /* Pointer to environment variable */
char filename1[NAME_BUF_SIZE],
filename2[NAME_BUF_SIZE],
filename3[NAME_BUF_SIZE]; /* Holders for filename */
if(new_format)
TESTING("external links via environment variable (w/new group format)")
else
TESTING("external links via environment variable")
if ((envval = HDgetenv("HDF5_EXT_PREFIX")) == NULL)
envval = "nomatch";
if (HDstrcmp(envval, ".:tmp")) TEST_ERROR
/* Set up name for main file:"extlinks_env0" */
h5_fixname(FILENAME[0], fapl, filename1, sizeof filename1);
/* Set up name for external linked target file: "extlinks_env1" */
h5_fixname(FILENAME[1], fapl, filename2, sizeof filename2);
/* Create "tmp" directory */
if(HDmkdir(TMPDIR, (mode_t)0755) < 0 && errno != EEXIST)
TEST_ERROR
/* Set up name (location) for the target file: "tmp/extlinks1" */
h5_fixname(FILENAME[2], fapl, filename3, sizeof filename3);
/* Create the target file in "tmp" directory */
if((fid=H5Fcreate(filename3, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0) TEST_ERROR
if((gid=H5Gcreate2(fid, "A", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
/* Closing for target file */
if(H5Gclose(gid) < 0) TEST_ERROR
if(H5Fclose(fid) < 0) TEST_ERROR
/* Create the main file */
if((fid=H5Fcreate(filename1, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0) TEST_ERROR
/* Create external link to target file */
if(H5Lcreate_external(filename2, "/A", fid, "ext_link", H5P_DEFAULT, H5P_DEFAULT) < 0) TEST_ERROR
/* Open object through external link */
H5E_BEGIN_TRY {
gid = H5Gopen2(fid, "ext_link", H5P_DEFAULT);
} H5E_END_TRY;
/* Should be able to find the target file from pathnames set via HDF5_EXT_PREFIX */
if (gid < 0) {
H5_FAILED();
puts(" Should have found the file in tmp directory.");
goto error;
}
/* closing for main file */
if(H5Gclose(gid) < 0) TEST_ERROR
if(H5Fclose(fid) < 0) TEST_ERROR
PASSED();
return 0;
error:
H5E_BEGIN_TRY {
H5Gclose (gid);
H5Fclose (fid);
} H5E_END_TRY;
return -1;
} /* end external_link_env() */
/*-------------------------------------------------------------------------
* Function: h5_fixname
*
* Purpose: Create a file name from a file base name like `test' and
* return it through the FULLNAME (at most SIZE characters
* counting the null terminator). The full name is created by
* prepending the contents of HDF5_PREFIX (separated from the
* base name by a slash) and appending a file extension based on
* the driver supplied, resulting in something like
* `ufs:/u/matzke/test.h5'.
*
* Return: Success: The FULLNAME pointer.
*
* Failure: NULL if BASENAME or FULLNAME is the null
* pointer or if FULLNAME isn't large enough for
* the result.
*
* Programmer: Robb Matzke
* Thursday, November 19, 1998
*
*-------------------------------------------------------------------------
*/
char *
h5_fixname(const char *base_name, hid_t fapl, char *fullname, size_t size)
{
const char *prefix = NULL;
const char *suffix = ".h5"; /* suffix has default */
char *ptr, last = '\0';
size_t i, j;
hid_t driver = -1;
int isppdriver = 0; /* if the driver is MPI parallel */
if (!base_name || !fullname || size < 1)
return NULL;
HDmemset(fullname, 0, size);
/* figure out the suffix */
if(H5P_DEFAULT != fapl) {
if((driver = H5Pget_driver(fapl)) < 0)
return NULL;
if(H5FD_FAMILY == driver)
suffix = "%05d.h5";
else if (H5FD_MULTI == driver)
suffix = NULL;
}
/* Must first check fapl is not H5P_DEFAULT (-1) because H5FD_XXX
* could be of value -1 if it is not defined.
*/
isppdriver = H5P_DEFAULT != fapl && (H5FD_MPIO==driver);
/* Check HDF5_NOCLEANUP environment setting.
* (The #ifdef is needed to prevent compile failure in case MPI is not
* configured.)
*/
if(isppdriver) {
#ifdef H5_HAVE_PARALLEL
if(getenv_all(MPI_COMM_WORLD, 0, "HDF5_NOCLEANUP"))
SetTestNoCleanup();
#endif /* H5_HAVE_PARALLEL */
} else {
if(HDgetenv("HDF5_NOCLEANUP"))
SetTestNoCleanup();
}
/* Check what prefix to use for test files. Process HDF5_PARAPREFIX and
* HDF5_PREFIX.
* Use different ones depending on parallel or serial driver used.
* (The #ifdef is needed to prevent compile failure in case MPI is not
* configured.)
*/
if(isppdriver) {
#ifdef H5_HAVE_PARALLEL
/*
* For parallel:
* First use command line option, then the environment
* variable, then try the constant
*/
static int explained = 0;
prefix = (paraprefix ? paraprefix : getenv_all(MPI_COMM_WORLD, 0, "HDF5_PARAPREFIX"));
if (!prefix && !explained) {
/* print hint by process 0 once. */
int mpi_rank;
MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
if (mpi_rank == 0)
printf("*** Hint ***\n"
"You can use environment variable HDF5_PARAPREFIX to "
"run parallel test files in a\n"
"different directory or to add file type prefix. E.g.,\n"
" HDF5_PARAPREFIX=pfs:/PFS/user/me\n"
" export HDF5_PARAPREFIX\n"
"*** End of Hint ***\n");
explained = TRUE;
#ifdef HDF5_PARAPREFIX
prefix = HDF5_PARAPREFIX;
#endif /* HDF5_PARAPREFIX */
}
#endif /* H5_HAVE_PARALLEL */
} else {
/*
* For serial:
* First use the environment variable, then try the constant
*/
prefix = HDgetenv("HDF5_PREFIX");
#ifdef HDF5_PREFIX
if (!prefix)
prefix = HDF5_PREFIX;
#endif /* HDF5_PREFIX */
}
/* Prepend the prefix value to the base name */
if (prefix && *prefix) {
if (isppdriver) {
/* This is a parallel system */
char *subdir;
if (!HDstrcmp(prefix, HDF5_PARAPREFIX)) {
/*
* If the prefix specifies the HDF5_PARAPREFIX directory, then
* default to using the "/tmp/$USER" or "/tmp/$LOGIN"
* directory instead.
*/
char *user, *login;
user = HDgetenv("USER");
login = HDgetenv("LOGIN");
subdir = (user ? user : login);
if (subdir) {
for (i = 0; i < size && prefix[i]; i++)
fullname[i] = prefix[i];
fullname[i++] = '/';
for (j = 0; i < size && subdir[j]; ++i, ++j)
fullname[i] = subdir[j];
}
}
if (!fullname[0]) {
/* We didn't append the prefix yet */
HDstrncpy(fullname, prefix, size);
fullname[size -1] = '\0';
}
if (HDstrlen(fullname) + HDstrlen(base_name) + 1 < size) {
/*
* Append the base_name with a slash first. Multiple
* slashes are handled below.
*/
h5_stat_t buf;
if (HDstat(fullname, &buf) < 0)
/* The directory doesn't exist just yet */
if (HDmkdir(fullname, (mode_t)0755) < 0 && errno != EEXIST)
/*
* We couldn't make the "/tmp/${USER,LOGIN}"
* subdirectory. Default to PREFIX's original
* prefix value.
*/
HDstrcpy(fullname, prefix);
HDstrcat(fullname, "/");
HDstrcat(fullname, base_name);
} else {
/* Buffer is too small */
return NULL;
}
} else {
if (HDsnprintf(fullname, size, "%s/%s", prefix, base_name) == (int)size)
/* Buffer is too small */
return NULL;
}
} else if (HDstrlen(base_name) >= size) {
/* Buffer is too small */
return NULL;
} else {
HDstrcpy(fullname, base_name);
}
/* Append a suffix */
if (suffix) {
if (HDstrlen(fullname) + HDstrlen(suffix) >= size)
return NULL;
HDstrcat(fullname, suffix);
}
/* Remove any double slashes in the filename */
for (ptr = fullname, i = j = 0; ptr && i < size; i++, ptr++) {
if (*ptr != '/' || last != '/')
fullname[j++] = *ptr;
last = *ptr;
}
return fullname;
}
/*
* Function: sio_create_filename
* Purpose: Create a new filename to write to. Determine the correct
* suffix to append to the filename by the type of I/O we're
* doing. Also, place in the /tmp/{$USER,$LOGIN} directory if
* USER or LOGIN are specified in the environment.
* Return: Pointer to filename or NULL
* Programmer: Bill Wendling, 21. November 2001
* Modifications: Support for file drivers. Christian Chilan, April, 2008
*/
static char *
sio_create_filename(iotype iot, const char *base_name, char *fullname, size_t size, parameters *param)
{
const char *prefix, *suffix="";
char *ptr, last = '\0';
size_t i, j;
vfdtype vfd;
vfd = param->vfd;
if (!base_name || !fullname || size < 1)
return NULL;
memset(fullname, 0, size);
switch (iot) {
case POSIXIO:
suffix = ".posix";
break;
case HDF5:
suffix = ".h5";
if (vfd == family)
suffix = "%05d.h5";
else if (vfd == multi)
suffix = NULL;
break;
default:
/* unknown request */
HDfprintf(stderr, "Unknown IO type request (%d)\n", (int)iot);
HDassert(0 && "Unknown IO type");
break;
}
/* First use the environment variable and then try the constant */
prefix = HDgetenv("HDF5_PREFIX");
#ifdef HDF5_PREFIX
if (!prefix)
prefix = HDF5_PREFIX;
#endif /* HDF5_PREFIX */
/* Prepend the prefix value to the base name */
if (prefix && *prefix) {
/* If the prefix specifies the HDF5_PREFIX directory, then
* default to using the "/tmp/$USER" or "/tmp/$LOGIN"
* directory instead. */
register char *user, *login, *subdir;
user = HDgetenv("USER");
login = HDgetenv("LOGIN");
subdir = (user ? user : login);
if (subdir) {
for (i = 0; i < size-1 && prefix[i]; i++)
fullname[i] = prefix[i];
fullname[i++] = '/';
for (j = 0; i < size && subdir[j]; i++, j++)
fullname[i] = subdir[j];
} else {
/* We didn't append the prefix yet */
HDstrncpy(fullname, prefix, size);
fullname[size - 1] = '\0';
}
if ((HDstrlen(fullname) + HDstrlen(base_name) + 1) < size) {
/* Append the base_name with a slash first. Multiple slashes are
* handled below. */
h5_stat_t buf;
if (HDstat(fullname, &buf) < 0)
/* The directory doesn't exist just yet */
if (HDmkdir(fullname, 0755) < 0 && errno != EEXIST) {
/* We couldn't make the "/tmp/${USER,LOGIN}" subdirectory.
* Default to PREFIX's original prefix value. */
HDstrcpy(fullname, prefix);
}
HDstrcat(fullname, "/");
HDstrcat(fullname, base_name);
} else {
/* Buffer is too small */
return NULL;
}
} else if (strlen(base_name) >= size) {
/* Buffer is too small */
return NULL;
} else {
HDstrcpy(fullname, base_name);
}
/* Append a suffix */
if (suffix) {
if (HDstrlen(fullname) + HDstrlen(suffix) >= size)
return NULL;
HDstrcat(fullname, suffix);
}
/* Remove any double slashes in the filename */
for (ptr = fullname, i = j = 0; ptr && (i < size); i++, ptr++) {
if (*ptr != '/' || last != '/')
fullname[j++] = *ptr;
last = *ptr;
}
return fullname;
}
