hdf5/test/h5test.c
jhendersonHDF 34d6ef545a
Refactor h5test.c, testframe.c and testpar.h testing frameworks (#4891)
Added new testframe.h header to document testing framework functions and
split them away from h5test.h and from test programs that don't
integrate with the testframe.c testing framework

Added new test setup callback to testframe.c testing framework

Added parameters to AddTest() to specify size of test parameters so they
can be copied for later use

Enabled HDF5 error stacks in testframe.c framework by default and added
some error stack suppressions to some testhdf5 tests

Added new maxthreads option to testframe.c framework to allow specifying
the maximum number of threads a multi-threaded test can use

Moved TestExpress functionality out of testframe.c and into more general
h5test.c for wider use by tests through getter and setter

Updated some tests to not mix and match functionality between h5test.c/h
and testframe.c/h

Moved some functionality from testphdf5.h into testpar.h for parallel
tests that aren't part of testphdf5

Added new parallel test library that contains common shared
functionality for parallel tests (similar to h5test library)
2024-10-01 16:10:03 -05:00

2648 lines
84 KiB
C

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Provides support functions for most of the hdf5 tests cases.
*
*/
#undef NDEBUG /*override -DNDEBUG */
#include "h5test.h"
#include "H5srcdir.h"
#include "H5srcdir_str.h"
/* Necessary for h5_verify_cached_stabs() */
#define H5G_FRIEND /*suppress error about including H5Gpkg */
#define H5G_TESTING
#include "H5Gpkg.h"
#ifdef H5_HAVE_WIN32_API
#include <process.h>
#endif /* H5_HAVE_WIN32_API */
/*
* Define these environment variables or constants to influence functions in
* this test support library. The environment variable is used in preference
* to the cpp constant. If neither is defined then use some default value.
*
* HDF5_DRIVER/HDF5_TEST_DRIVER: This string describes what low level file
* driver to use for HDF5 file access. The first word in the value is the
* name of the driver and subsequent data is interpreted according to the
* driver. See h5_get_vfd_fapl() for details.
*
* HDF5_LIBVER_BOUNDS: This string describes what library version bounds to
* use for HDF5 file access. See h5_get_libver_fapl() for details.
*
* HDF5_PREFIX: A string to add to the beginning of all serial test
* file names. This can be used to run tests in a
* different file system (e.g., "/tmp" or "/tmp/myname").
* The prefix will be separated from the base file name
* by a slash. See h5_fixname() for details.
*
* HDF5_PARAPREFIX: A string to add to the beginning of all parallel test
* file names. This can be used to tell MPIO what driver
* to use (e.g., "gfs:", "ufs:", or "nfs:") or to use a
* different file system (e.g., "/tmp" or "/tmp/myname").
* The prefix will be separated from the base file name
* by a slash. See h5_fixname() for details.
*
*/
/*
* In a parallel machine, the filesystem suitable for compiling is
* unlikely a parallel file system that is suitable for parallel I/O.
* There is no standard pathname for the parallel file system. /tmp
* is about the best guess.
*/
#ifndef HDF5_PARAPREFIX
#define HDF5_PARAPREFIX ""
#endif
char *paraprefix = NULL; /* for command line option para-prefix */
#ifdef H5_HAVE_PARALLEL
MPI_Info h5_io_info_g = MPI_INFO_NULL; /* MPI INFO object for IO */
#endif
#define READ_BUF_SIZE 65536
/*
* These are the letters that are appended to the file name when generating
* names for the split and multi drivers. They are:
*
* m: All meta data when using the split driver.
* s: The userblock, superblock, and driver info block
* b: B-tree nodes
* r: Dataset raw data
* g: Global heap
* l: local heap (object names)
* o: object headers
*/
static const char *multi_letters = "msbrglo";
/* Temporary file for sending signal messages */
#define TMP_SIGNAL_FILE "tmp_signal_file"
/* The # of seconds to wait for the message file--used by h5_wait_message() */
#define MESSAGE_TIMEOUT 300 /* Timeout in seconds */
/* Buffer to construct path in and return pointer to */
static char srcdir_path[1024];
/* Buffer to construct file in and return pointer to */
static char srcdir_testpath[1024];
/* The strings that correspond to library version bounds H5F_libver_t in H5Fpublic.h */
/* This is used by h5_get_version_string() */
const char *LIBVER_NAMES[] = {"earliest", /* H5F_LIBVER_EARLIEST = 0 */
"v18", /* H5F_LIBVER_V18 = 1 */
"v110", /* H5F_LIBVER_V110 = 2 */
"v112", /* H5F_LIBVER_V112 = 3 */
"v114", /* H5F_LIBVER_V114 = 4 */
"v116", /* H5F_LIBVER_V116 = 5 */
"latest", /* H5F_LIBVER_LATEST */
NULL};
/* Previous error reporting function */
static H5E_auto2_t err_func = NULL;
/* Global variables for testing */
static int TestExpress_g = -1; /* Whether to expedite testing. -1 means not set yet. */
size_t n_tests_run_g = 0;
size_t n_tests_passed_g = 0;
size_t n_tests_failed_g = 0;
size_t n_tests_skipped_g = 0;
uint64_t vol_cap_flags_g = H5VL_CAP_FLAG_NONE;
/* Whether h5_cleanup should clean up temporary testing files */
static bool do_test_file_cleanup_g = true;
static herr_t h5_errors(hid_t estack, void *client_data);
static char *h5_fixname_real(const char *base_name, hid_t fapl, const char *_suffix, char *fullname,
size_t size, bool nest_printf, bool subst_for_superblock);
/*-------------------------------------------------------------------------
* Function: h5_errors
*
* Purpose: Displays the error stack after printing "*FAILED*".
*
* Return: Success: 0
*
* Failure: -1
*
*-------------------------------------------------------------------------
*/
static herr_t
h5_errors(hid_t estack, void H5_ATTR_UNUSED *client_data)
{
H5_FAILED();
H5Eprint2(estack, stdout);
return 0;
}
/*-------------------------------------------------------------------------
* Function: h5_delete_test_file
*
* Purpose Clean up temporary test files.
*
* When a test calls h5_fixname() to get a VFD-dependent
* test file name, this function can be used to clean it up.
*
* Return: void
*
* Since this is a cleanup file, we don't care if it fails.
*
*-------------------------------------------------------------------------
*/
void
h5_delete_test_file(const char *base_name, hid_t fapl)
{
char filename[1024]; /* VFD-dependent filename to delete */
/* Get the VFD-dependent filename */
if (NULL == h5_fixname(base_name, fapl, filename, sizeof(filename)))
return;
H5E_BEGIN_TRY
{
H5Fdelete(filename, fapl);
}
H5E_END_TRY
} /* end h5_delete_test_file() */
/*-------------------------------------------------------------------------
* Function: h5_delete_all_test_files
*
* Purpose Clean up temporary test files.
*
* When a test calls h5_fixname() get a VFD-dependent
* test file name, this function can be used to clean it up.
*
* This function takes an array of filenames that ends with
* a NULL string and cleans them all.
*
* Return: void
*
* Since this is a cleanup file, we don't care if it fails.
*
*-------------------------------------------------------------------------
*/
void
h5_delete_all_test_files(const char *base_name[], hid_t fapl)
{
for (int i = 0; base_name[i]; i++)
h5_delete_test_file(base_name[i], fapl);
} /* end h5_delete_all_test_files() */
/*-------------------------------------------------------------------------
* Function: h5_cleanup
*
* Purpose: Cleanup temporary test files.
* base_name contains the list of test file names.
* The file access property list is also closed.
*
* Return: Non-zero if cleanup actions were performed; zero otherwise.
*
*-------------------------------------------------------------------------
*/
int
h5_cleanup(const char *base_name[], hid_t fapl)
{
int retval = 0;
if (do_test_file_cleanup_g) {
/* Clean up files in base_name, and the FAPL */
h5_delete_all_test_files(base_name, fapl);
H5Pclose(fapl);
retval = 1;
} /* end if */
/* Restore the original error reporting routine */
h5_restore_err();
return retval;
} /* end h5_cleanup() */
/*-------------------------------------------------------------------------
* Function: h5_restore_err
*
* Purpose: Restore the default error handler.
*
* Return: N/A
*
*-------------------------------------------------------------------------
*/
void
h5_restore_err(void)
{
/* Restore the original error reporting routine */
assert(err_func != NULL);
H5Eset_auto2(H5E_DEFAULT, err_func, NULL);
err_func = NULL;
}
/*-------------------------------------------------------------------------
* Function: h5_test_init
*
* Purpose: Performs any special actions before the test begins.
*
* NOTE: This function should normally only be called once
* in a given test, usually at the beginning of main(). It
* is intended for use in the single-file unit tests, not
* testhdf5.
*
* Return: void
*
*-------------------------------------------------------------------------
*/
void
h5_test_init(void)
{
fflush(stdout);
fflush(stderr);
H5close();
/* Save current error stack reporting routine and redirect to our local one */
assert(err_func == NULL);
H5Eget_auto2(H5E_DEFAULT, &err_func, NULL);
H5Eset_auto2(H5E_DEFAULT, h5_errors, NULL);
/* Retrieve the TestExpress mode */
TestExpress_g = h5_get_testexpress();
} /* end h5_test_init() */
/*-------------------------------------------------------------------------
* 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.
*
*-------------------------------------------------------------------------
*/
char *
h5_fixname(const char *base_name, hid_t fapl, char *fullname, size_t size)
{
return (h5_fixname_real(base_name, fapl, ".h5", fullname, size, false, false));
}
/*-------------------------------------------------------------------------
* Function: h5_fixname_superblock
*
* Purpose: Like h5_fixname() but returns the name of the file you'd
* open to find the superblock. Useful for when you have to
* open a file with open(2) but the h5_fixname() string
* contains stuff like format strings.
*
* 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.
*
*-------------------------------------------------------------------------
*/
char *
h5_fixname_superblock(const char *base_name, hid_t fapl_id, char *fullname, size_t size)
{
return (h5_fixname_real(base_name, fapl_id, ".h5", fullname, size, false, true));
}
/*-------------------------------------------------------------------------
* Function: h5_fixname_no_suffix
*
* Purpose: Same as h5_fixname but with no suffix appended
*
* 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.
*
*-------------------------------------------------------------------------
*/
char *
h5_fixname_no_suffix(const char *base_name, hid_t fapl, char *fullname, size_t size)
{
return (h5_fixname_real(base_name, fapl, NULL, fullname, size, false, false));
}
/*-------------------------------------------------------------------------
* Function: h5_fixname_printf
*
* Purpose: Same as h5_fixname but returns a filename that can be passed
* through a printf-style function once before being passed to the file
* driver. Basically, replaces all % characters used by the file
* driver with %%.
*
* 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.
*
*-------------------------------------------------------------------------
*/
char *
h5_fixname_printf(const char *base_name, hid_t fapl, char *fullname, size_t size)
{
return (h5_fixname_real(base_name, fapl, ".h5", fullname, size, true, false));
}
/*-------------------------------------------------------------------------
* Function: h5_fixname_real
*
* 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.
*
*-------------------------------------------------------------------------
*/
static char *
h5_fixname_real(const char *base_name, hid_t fapl, const char *_suffix, char *fullname, size_t size,
bool nest_printf, bool subst_for_superblock)
{
const char *prefix = NULL;
const char *driver_env_var = NULL; /* HDF5_DRIVER/HDF5_TEST_DRIVER environment variable */
char *ptr, last = '\0';
const char *suffix = _suffix;
size_t i, j;
hid_t driver = H5I_INVALID_HID;
bool isppdriver = false; /* if the driver is MPI parallel */
if (!base_name || !fullname || size < 1)
return NULL;
memset(fullname, 0, size);
/* Determine if driver is set by environment variable. If it is,
* only generate a suffix if fixing the filename for the superblock
* file. */
driver_env_var = h5_get_test_driver_name();
if (driver_env_var && (H5P_DEFAULT == fapl) && subst_for_superblock)
fapl = H5P_FILE_ACCESS_DEFAULT;
/* figure out the suffix */
if (H5P_DEFAULT != fapl) {
if ((driver = H5Pget_driver(fapl)) < 0)
return NULL;
if (suffix) {
if (H5FD_FAMILY == driver) {
if (subst_for_superblock)
suffix = "-000000.h5";
else {
if (nest_printf) {
suffix = "-%%06d.h5";
}
else {
suffix = "-%06d.h5";
}
}
}
else if (H5FD_MULTI == driver) {
/* Check the HDF5_DRIVER/HDF5_TEST_DRIVER environment
* variable in case we are using the split driver since
* both of those use the multi VFD under the hood.
*/
if (driver_env_var && !strcmp(driver_env_var, "split")) {
/* split VFD */
if (subst_for_superblock)
suffix = ".h5.meta";
else
suffix = NULL;
}
else {
/* multi VFD */
if (subst_for_superblock)
suffix = "-s.h5";
else
suffix = NULL;
}
}
}
}
if (h5_using_parallel_driver(fapl, &isppdriver) < 0)
return NULL;
/* 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))
do_test_file_cleanup_g = false;
#endif /* H5_HAVE_PARALLEL */
}
else {
if (getenv(HDF5_NOCLEANUP))
do_test_file_cleanup_g = false;
}
/* 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 = getenv("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 (!strcmp(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 = getenv("USER");
login = getenv("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 */
strncpy(fullname, prefix, size);
fullname[size - 1] = '\0';
}
if (strlen(fullname) + strlen(base_name) + 1 < size) {
/*
* Append the base_name with a slash first. Multiple
* slashes are handled below.
*/
h5_stat_t buf;
memset(&buf, 0, sizeof(h5_stat_t));
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.
*/
strcpy(fullname, prefix);
strcat(fullname, "/");
strcat(fullname, base_name);
}
else {
/* Buffer is too small */
return NULL;
}
}
else {
if (snprintf(fullname, size, "%s/%s", prefix, base_name) == (int)size)
/* Buffer is too small */
return NULL;
}
}
else if (strlen(base_name) >= size) {
/* Buffer is too small */
return NULL;
}
else {
strcpy(fullname, base_name);
}
/* Append a suffix */
if (suffix) {
if (strlen(fullname) + strlen(suffix) >= size)
return NULL;
strcat(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: h5_rmprefix
*
* Purpose: This "removes" the MPIO driver prefix part of the file name
* by returning a pointer that points at the non-prefix component
* part of the file name. E.g.,
* Input Return
* pfs:/scratch1/dataX /scratch1/dataX
* /scratch2/dataY /scratch2/dataY
* Note that there is no change to the original file name.
*
* Return: Success: a pointer at the non-prefix part.
*
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE const char *
h5_rmprefix(const char *filename)
{
const char *ret_ptr;
if ((ret_ptr = strstr(filename, ":")) == NULL)
ret_ptr = filename;
else
ret_ptr++;
return (ret_ptr);
}
/*-------------------------------------------------------------------------
* Function: h5_fileaccess
*
* Purpose: Returns a file access template which is the default template
* but with a file driver, VOL connector, or libver bound set
* according to a constant or environment variable
*
* Return: Success: A file access property list
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
h5_fileaccess(void)
{
hid_t fapl_id = H5I_INVALID_HID;
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0)
goto error;
/* Attempt to set up a file driver first */
if (h5_get_vfd_fapl(fapl_id) < 0)
goto error;
/* Check for libver bounds */
if (h5_get_libver_fapl(fapl_id) < 0)
goto error;
return fapl_id;
error:
if (fapl_id != H5I_INVALID_HID)
H5Pclose(fapl_id);
return H5I_INVALID_HID;
} /* end h5_fileaccess() */
/*-------------------------------------------------------------------------
* Function: h5_fileaccess_flags
*
* Purpose: Returns a file access template which is the default template
* but with a file driver, VOL connector, or libver bound set
* according to a constant or environment variable
*
* Return: Success: A file access property list
* Failure: H5I_INVALID_HID
*
*-------------------------------------------------------------------------
*/
hid_t
h5_fileaccess_flags(unsigned flags)
{
hid_t fapl_id = H5I_INVALID_HID;
if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0)
goto error;
/* Attempt to set up a file driver first */
if ((flags & H5_FILEACCESS_VFD) && h5_get_vfd_fapl(fapl_id) < 0)
goto error;
/* Check for libver bounds */
if ((flags & H5_FILEACCESS_LIBVER) && h5_get_libver_fapl(fapl_id) < 0)
goto error;
return fapl_id;
error:
if (fapl_id != H5I_INVALID_HID)
H5Pclose(fapl_id);
return H5I_INVALID_HID;
} /* end h5_fileaccess_flags() */
/*-------------------------------------------------------------------------
* Function: h5_get_vfd_fapl
*
* Purpose: Sets the file driver for a FAPL according to the value
* specified in the environment variable "HDF5_DRIVER" or
* "HDF5_TEST_DRIVER".
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
h5_get_vfd_fapl(hid_t fapl)
{
const char *env = NULL; /* HDF5_DRIVER/HDF5_TEST_DRIVER environment variable */
const char *tok = NULL; /* strtok pointer */
char *lasts = NULL; /* Context pointer for strtok_r() call */
char buf[1024]; /* buffer for tokenizing HDF5_DRIVER */
/* Get the environment variable, if it exists */
env = getenv(HDF5_DRIVER);
if (!env)
env = getenv("HDF5_TEST_DRIVER");
/* If the environment variable was not set, just return
* without modifying the FAPL.
*/
if (!env || !*env)
goto done;
/* Get the first 'word' of the environment variable.
* If it's nothing (environment variable was whitespace)
* just return the default fapl.
*/
strncpy(buf, env, sizeof(buf));
buf[sizeof(buf) - 1] = '\0';
if (NULL == (tok = HDstrtok_r(buf, " \t\n\r", &lasts)))
goto done;
if (!strcmp(tok, "sec2")) {
/* POSIX (section 2) read() and write() system calls */
if (H5Pset_fapl_sec2(fapl) < 0)
goto error;
}
else if (!strcmp(tok, "stdio")) {
/* Standard C fread() and fwrite() system calls */
if (H5Pset_fapl_stdio(fapl) < 0)
goto error;
}
else if (!strcmp(tok, "core")) {
/* In-memory driver settings (backing store on, 1 MB increment) */
if (H5Pset_fapl_core(fapl, (size_t)H5_MB, TRUE) < 0)
goto error;
}
else if (!strcmp(tok, "core_paged")) {
/* In-memory driver with write tracking and paging on */
if (H5Pset_fapl_core(fapl, (size_t)H5_MB, TRUE) < 0)
goto error;
if (H5Pset_core_write_tracking(fapl, TRUE, 4096) < 0)
goto error;
}
else if (!strcmp(tok, "split")) {
/* Split meta data and raw data each using default driver */
if (H5Pset_fapl_split(fapl, ".meta", H5P_DEFAULT, ".raw", H5P_DEFAULT) < 0)
goto error;
}
else if (!strcmp(tok, "multi")) {
/* Multi-file driver, general case of the split driver */
H5FD_mem_t memb_map[H5FD_MEM_NTYPES];
hid_t memb_fapl[H5FD_MEM_NTYPES];
const char *memb_name[H5FD_MEM_NTYPES];
char *sv[H5FD_MEM_NTYPES];
haddr_t memb_addr[H5FD_MEM_NTYPES];
H5FD_mem_t mt;
const size_t multi_memname_maxlen = 1024;
memset(memb_map, 0, sizeof(memb_map));
memset(memb_fapl, 0, sizeof(memb_fapl));
memset(memb_name, 0, sizeof(memb_name));
memset(memb_addr, 0, sizeof(memb_addr));
assert(strlen(multi_letters) == H5FD_MEM_NTYPES);
for (mt = H5FD_MEM_DEFAULT; mt < H5FD_MEM_NTYPES; mt++) {
memb_fapl[mt] = H5P_DEFAULT;
if (NULL == (sv[mt] = malloc(multi_memname_maxlen)))
goto error;
snprintf(sv[mt], multi_memname_maxlen, "%%s-%c.h5", multi_letters[mt]);
memb_name[mt] = sv[mt];
memb_addr[mt] = (haddr_t)MAX(mt - 1, 0) * (HADDR_MAX / 10);
} /* end for */
if (H5Pset_fapl_multi(fapl, memb_map, memb_fapl, memb_name, memb_addr, FALSE) < 0)
goto error;
for (mt = H5FD_MEM_DEFAULT; mt < H5FD_MEM_NTYPES; mt++)
free(sv[mt]);
}
else if (!strcmp(tok, "family")) {
/* Family of files, each 1MB and using the default driver */
hsize_t fam_size = 100 * 1024 * 1024; /* 100 MB */
/* Was a family size specified in the environment variable? */
if ((tok = HDstrtok_r(NULL, " \t\n\r", &lasts)))
fam_size = (hsize_t)(strtod(tok, NULL) * 1024 * 1024);
if (H5Pset_fapl_family(fapl, fam_size, H5P_DEFAULT) < 0)
goto error;
}
else if (!strcmp(tok, "log")) {
/* Log file access */
unsigned log_flags = H5FD_LOG_LOC_IO | H5FD_LOG_ALLOC;
/* Were special log file flags specified in the environment variable? */
if ((tok = HDstrtok_r(NULL, " \t\n\r", &lasts)))
log_flags = (unsigned)strtol(tok, NULL, 0);
if (H5Pset_fapl_log(fapl, NULL, log_flags, 0) < 0)
goto error;
}
#ifdef H5_HAVE_DIRECT
else if (!strcmp(tok, "direct")) {
/* Linux direct read() and write() system calls. Set memory boundary,
* file block size, and copy buffer size to the default values.
*/
if (H5Pset_fapl_direct(fapl, 1024, 4096, 8 * 4096) < 0)
goto error;
}
#endif
else if (!strcmp(tok, "splitter")) {
H5FD_splitter_vfd_config_t *splitter_config;
static size_t file_count = 0;
if (NULL == (splitter_config = malloc(sizeof(*splitter_config))))
goto error;
splitter_config->magic = H5FD_SPLITTER_MAGIC;
splitter_config->version = H5FD_CURR_SPLITTER_VFD_CONFIG_VERSION;
splitter_config->ignore_wo_errs = false;
memset(splitter_config->log_file_path, 0, H5FD_SPLITTER_PATH_MAX + 1);
/*
* We need access to the base filename to generate a unique name
* for the W/O file for this FAPL. Until this is refactored, just
* generate unique names with a counter.
*/
snprintf(splitter_config->wo_path, H5FD_SPLITTER_PATH_MAX + 1, "splitter_wo_file_%zu.h5",
file_count++);
/* Setup R/W and W/O channel FAPLs since the default FAPL
* has the splitter driver set on it from the environment
*/
if ((splitter_config->rw_fapl_id = H5Pcopy(H5P_FILE_ACCESS_DEFAULT)) < 0) {
free(splitter_config);
goto error;
}
if ((splitter_config->wo_fapl_id = H5Pcopy(H5P_FILE_ACCESS_DEFAULT)) < 0) {
H5Pclose(splitter_config->rw_fapl_id);
free(splitter_config);
goto error;
}
if (H5Pset_fapl_sec2(splitter_config->rw_fapl_id) < 0) {
H5Pclose(splitter_config->rw_fapl_id);
H5Pclose(splitter_config->wo_fapl_id);
free(splitter_config);
goto error;
}
if (H5Pset_fapl_sec2(splitter_config->wo_fapl_id) < 0) {
H5Pclose(splitter_config->rw_fapl_id);
H5Pclose(splitter_config->wo_fapl_id);
free(splitter_config);
goto error;
}
if (H5Pset_fapl_splitter(fapl, splitter_config) < 0) {
H5Pclose(splitter_config->rw_fapl_id);
H5Pclose(splitter_config->wo_fapl_id);
free(splitter_config);
goto error;
}
free(splitter_config);
}
else if (!strcmp(tok, "onion")) {
/* TODO */
return 0;
}
#ifdef H5_HAVE_SUBFILING_VFD
else if (!strcmp(tok, H5FD_SUBFILING_NAME)) {
/* Use default subfiling configuration */
if (H5Pset_fapl_subfiling(fapl, NULL) < 0)
goto error;
}
#endif
#ifdef H5_HAVE_PARALLEL
else if (!strcmp(tok, "mpio")) {
int mpi_initialized, mpi_finalized;
MPI_Initialized(&mpi_initialized);
MPI_Finalized(&mpi_finalized);
if (mpi_initialized && !mpi_finalized) {
if (H5Pset_fapl_mpio(fapl, MPI_COMM_WORLD, MPI_INFO_NULL) < 0)
goto error;
}
}
#endif
#ifdef H5_HAVE_MIRROR_VFD
else if (!strcmp(tok, "mirror")) {
/* TODO */
return 0;
}
#endif
#ifdef H5_HAVE_LIBHDFS
else if (!strcmp(tok, "hdfs")) {
/* TODO */
return 0;
}
#endif
#ifdef H5_HAVE_ROS3_VFD
else if (!strcmp(tok, "ros3")) {
/* TODO */
return 0;
}
#endif
else {
/* Unknown driver */
goto error;
}
done:
return 0;
error:
return -1;
} /* end h5_get_vfd_fapl() */
/*-------------------------------------------------------------------------
* Function: h5_get_libver_fapl
*
* Purpose: Sets the library version bounds for a FAPL according to the
* value in the constant or environment variable "HDF5_LIBVER_BOUNDS".
*
* Return: Success: 0
* Failure: -1
*
*-------------------------------------------------------------------------
*/
herr_t
h5_get_libver_fapl(hid_t fapl)
{
const char *env = NULL; /* HDF5_LIBVER_BOUNDS environment variable */
const char *tok = NULL; /* strtok pointer */
char *lasts = NULL; /* Context pointer for strtok_r() call */
char buf[1024]; /* buffer for tokenizing HDF5_LIBVER_BOUNDS */
/* Get the environment variable, if it exists */
env = getenv("HDF5_LIBVER_BOUNDS");
#ifdef HDF5_LIBVER_BOUNDS
/* Use the environment variable, then the compile-time constant */
if (!env)
env = HDF5_LIBVER_BOUNDS;
#endif
/* If the environment variable was not set, just return
* without modifying the FAPL.
*/
if (!env || !*env)
goto done;
/* Get the first 'word' of the environment variable.
* If it's nothing (environment variable was whitespace)
* just return the default fapl.
*/
strncpy(buf, env, sizeof(buf));
buf[sizeof(buf) - 1] = '\0';
if (NULL == (tok = HDstrtok_r(buf, " \t\n\r", &lasts)))
goto done;
if (!strcmp(tok, "latest")) {
/* use the latest format */
if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
goto error;
} /* end if */
else {
/* Unknown setting */
goto error;
} /* end else */
done:
return 0;
error:
return -1;
} /* end h5_get_libver_fapl() */
/*
* Returns the current TestExpress functionality setting.
* Valid values returned are as follows:
*
* 0: Exhaustive run
* Tests should take as long as necessary
* 1: Full run. Default value if H5_TEST_EXPRESS_LEVEL_DEFAULT
* and the HDF5TestExpress environment variable are not defined
* Tests should take no more than 30 minutes
* 2: Quick run
* Tests should take no more than 10 minutes
* 3: Smoke test.
* Default if the HDF5TestExpress environment variable is set to
* a value other than 0-3
* Tests should take less than 1 minute
*
* If the value returned is > 1, then test programs should
* skip some tests so that they complete sooner.
*/
int
h5_get_testexpress(void)
{
char *env_val;
int express_val = TestExpress_g;
/* TestExpress_g is uninitialized if it has a negative value */
if (express_val < 0) {
/* Default to level 1 if not overridden */
express_val = 1;
/* Check if a default test express level is defined (e.g., by build system) */
#ifdef H5_TEST_EXPRESS_LEVEL_DEFAULT
express_val = H5_TEST_EXPRESS_LEVEL_DEFAULT;
if (express_val < 0)
express_val = 1; /* Reset to default */
else if (express_val > 3)
express_val = 3;
#endif
}
/* Check if the HDF5TestExpress environment variable is set to
* override the default level
*/
env_val = getenv("HDF5TestExpress");
if (env_val) {
if (strcmp(env_val, "0") == 0)
express_val = 0;
else if (strcmp(env_val, "1") == 0)
express_val = 1;
else if (strcmp(env_val, "2") == 0)
express_val = 2;
else
express_val = 3;
}
return express_val;
}
/*
* Sets the level of express testing to the given value. Negative
* values are set to the default TestExpress setting (1). Values
* larger than the highest TestExpress setting (3) are set to the
* highest TestExpress setting.
*/
void
h5_set_testexpress(int new_val)
{
if (new_val < 0)
new_val = 1; /* Reset to default */
else if (new_val > 3)
new_val = 3;
TestExpress_g = new_val;
}
/*-------------------------------------------------------------------------
* Function: h5_no_hwconv
*
* Purpose: Turn off hardware data type conversions.
*
* Return: void
*
*-------------------------------------------------------------------------
*/
void
h5_no_hwconv(void)
{
H5Tunregister(H5T_PERS_HARD, NULL, (hid_t)-1, (hid_t)-1, NULL);
}
/*-------------------------------------------------------------------------
* Function: h5_show_hostname
*
* Purpose: Show hostname. Show process ID if in MPI environment.
*
* Return: void
*
*-------------------------------------------------------------------------
*/
void
h5_show_hostname(void)
{
char hostname[80];
#ifdef H5_HAVE_WIN32_API
WSADATA wsaData;
int err;
#endif
#ifdef H5_HAVE_PARALLEL
int mpi_rank, mpi_initialized, mpi_finalized;
#endif
#ifdef H5_HAVE_THREADSAFE
uint64_t thread_id = 0; /* ID of thread */
if (H5TS_thread_id(&thread_id) < 0)
return;
#endif
/* try show the process or thread id in multiple processes cases*/
#ifdef H5_HAVE_PARALLEL
MPI_Initialized(&mpi_initialized);
MPI_Finalized(&mpi_finalized);
if (mpi_initialized && !mpi_finalized) {
/* Prevent output here from getting mixed with later output */
MPI_Barrier(MPI_COMM_WORLD);
MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
printf("MPI-process %d.", mpi_rank);
}
#ifdef H5_HAVE_THREADSAFE
else
printf("thread %" PRIu64 ".", thread_id);
#endif
#else
#ifdef H5_HAVE_THREADSAFE
printf("thread %" PRIu64 ".", thread_id);
#endif
#endif
#ifdef H5_HAVE_WIN32_API
err = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (err != 0) {
/* could not find a usable WinSock DLL */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) {
/* could not find a usable WinSock DLL */
WSACleanup();
return;
}
#endif
#ifdef H5_HAVE_GETHOSTNAME
if (gethostname(hostname, (size_t)80) < 0)
printf(" gethostname failed\n");
else
printf(" hostname=%s\n", hostname);
#else
printf(" gethostname not supported\n");
#endif
#ifdef H5_HAVE_WIN32_API
WSACleanup();
#endif
#ifdef H5_HAVE_PARALLEL
/* Prevent output here from getting mixed with later output */
if (mpi_initialized && !mpi_finalized)
MPI_Barrier(MPI_COMM_WORLD);
#endif
}
#ifdef H5_HAVE_PARALLEL
/*
* Function: h5_set_info_object
* Purpose: Process environment variables setting to set up MPI Info
* object.
* Return: 0 if all is fine; otherwise non-zero.
*/
int
h5_set_info_object(void)
{
char *envp; /* environment pointer */
int ret_value = 0;
/* handle any MPI INFO hints via $HDF5_MPI_INFO */
if ((envp = getenv("HDF5_MPI_INFO")) != NULL) {
char *next, *valp;
valp = envp = next = strdup(envp);
if (!valp)
return 0;
/* create an INFO object if not created yet */
if (h5_io_info_g == MPI_INFO_NULL)
MPI_Info_create(&h5_io_info_g);
do {
size_t len;
char *key_val, *endp, *namep;
if (*valp == ';')
valp++;
/* copy key/value pair into temporary buffer */
len = strcspn(valp, ";");
next = &valp[len];
if (NULL == (key_val = (char *)calloc(1, len + 1)))
return -1;
/* increment the next pointer past the terminating semicolon */
if (*next == ';')
++next;
namep = strncpy(key_val, valp, len);
/* pass up any beginning whitespaces */
while (*namep && (*namep == ' ' || *namep == '\t'))
namep++;
if (!*namep)
continue; /* was all white space, so move to next k/v pair */
/* eat up any ending white spaces */
endp = &namep[strlen(namep) - 1];
while (endp && (*endp == ' ' || *endp == '\t'))
*endp-- = '\0';
/* find the '=' */
valp = strchr(namep, '=');
if (valp != NULL) { /* it's a valid key/value pairing */
char *tmp_val = valp + 1;
/* change '=' to \0, move valp down one */
*valp-- = '\0';
/* eat up ending whitespace on the "key" part */
while (*valp == ' ' || *valp == '\t')
*valp-- = '\0';
valp = tmp_val;
/* eat up beginning whitespace on the "value" part */
while (*valp == ' ' || *valp == '\t')
*valp++ = '\0';
/* actually set the darned thing */
if (MPI_SUCCESS != MPI_Info_set(h5_io_info_g, namep, valp)) {
printf("MPI_Info_set failed\n");
ret_value = -1;
}
}
valp = next;
free(key_val);
} while (next && *next);
free(envp);
}
return ret_value;
}
/*
* Function: h5_dump_info_object
* Purpose: Display content of an MPI Info object
* Return: void
*/
void
h5_dump_info_object(MPI_Info info)
{
char key[MPI_MAX_INFO_KEY + 1];
char value[MPI_MAX_INFO_VAL + 1];
int flag;
int i, nkeys;
printf("Dumping MPI Info Object (up to %d bytes per item):\n", MPI_MAX_INFO_VAL);
if (info == MPI_INFO_NULL) {
printf("object is MPI_INFO_NULL\n");
}
else {
MPI_Info_get_nkeys(info, &nkeys);
printf("object has %d items\n", nkeys);
for (i = 0; i < nkeys; i++) {
MPI_Info_get_nthkey(info, i, key);
MPI_Info_get(info, key, MPI_MAX_INFO_VAL, value, &flag);
printf("%s=%s\n", key, value);
}
}
}
#endif /* H5_HAVE_PARALLEL */
/*-------------------------------------------------------------------------
* Function: h5_get_file_size
*
* Purpose: Get the current size of a file (in bytes)
*
* Return: Success: Size of file in bytes
* Failure: -1
*
*-------------------------------------------------------------------------
*/
/* Disable warning for "format not a string literal" here -QAK */
/*
* This pragma only needs to surround the snprintf() calls with
* temp in the code below, but early (4.4.7, at least) gcc only
* allows diagnostic pragmas to be toggled outside of functions.
*/
H5_GCC_CLANG_DIAG_OFF("format-nonliteral")
h5_stat_size_t
h5_get_file_size(const char *filename, hid_t fapl)
{
char temp[2048]; /* Temporary buffer for file names */
h5_stat_t sb; /* Structure for querying file info */
int j = 0;
memset(&sb, 0, sizeof(h5_stat_t));
if (fapl == H5P_DEFAULT) {
/* Get the file's statistics */
if (0 == HDstat(filename, &sb))
return ((h5_stat_size_t)sb.st_size);
} /* end if */
else {
hid_t driver; /* VFD used for file */
/* Get the driver used when creating the file */
if ((driver = H5Pget_driver(fapl)) < 0)
return (-1);
/* Check for simple cases */
if (driver == H5FD_SEC2 || driver == H5FD_STDIO || driver == H5FD_CORE ||
#ifdef H5_HAVE_WINDOWS
driver == H5FD_WINDOWS ||
#endif /* H5_HAVE_WINDOWS */
#ifdef H5_HAVE_DIRECT
driver == H5FD_DIRECT ||
#endif /* H5_HAVE_DIRECT */
driver == H5FD_LOG || driver == H5FD_SPLITTER) {
/* Get the file's statistics */
if (0 == HDstat(filename, &sb))
return ((h5_stat_size_t)sb.st_size);
} /* end if */
else if (driver == H5FD_MULTI) {
H5FD_mem_t mt;
h5_stat_size_t tot_size = 0;
const char *driver_env_var = NULL;
driver_env_var = h5_get_test_driver_name();
if (driver_env_var && !strcmp(driver_env_var, "split")) {
for (mt = H5FD_MEM_DEFAULT; mt < H5FD_MEM_NTYPES; mt++) {
if (mt != H5FD_MEM_DRAW && mt != H5FD_MEM_SUPER)
continue;
/* Create the filename to query */
if (mt == H5FD_MEM_DRAW) {
snprintf(temp, sizeof temp, "%s.raw", filename);
}
else {
snprintf(temp, sizeof temp, "%s.meta", filename);
}
/* Check for existence of file */
if (0 == HDaccess(temp, F_OK)) {
/* Get the file's statistics */
if (0 != HDstat(temp, &sb))
return (-1);
/* Add to total size */
tot_size += (h5_stat_size_t)sb.st_size;
} /* end if */
} /* end for */
}
else {
assert(strlen(multi_letters) == H5FD_MEM_NTYPES);
for (mt = H5FD_MEM_DEFAULT; mt < H5FD_MEM_NTYPES; mt++) {
/* Create the filename to query */
snprintf(temp, sizeof temp, "%s-%c.h5", filename, multi_letters[mt]);
/* Check for existence of file */
if (0 == HDaccess(temp, F_OK)) {
/* Get the file's statistics */
if (0 != HDstat(temp, &sb))
return (-1);
/* Add to total size */
tot_size += (h5_stat_size_t)sb.st_size;
} /* end if */
} /* end for */
}
/* Return total size */
return (tot_size);
} /* end if */
#ifdef H5_HAVE_PARALLEL
else if (driver == H5FD_MPIO) {
MPI_File fh; /* MPI file handle used to open the file and verify its size */
int mpi_ret;
MPI_Offset file_size;
mpi_ret = MPI_File_open(MPI_COMM_WORLD, filename, MPI_MODE_RDONLY, MPI_INFO_NULL, &fh);
if (mpi_ret != MPI_SUCCESS)
return -1;
mpi_ret = MPI_File_get_size(fh, &file_size);
if (mpi_ret != MPI_SUCCESS)
return -1;
mpi_ret = MPI_File_close(&fh);
if (mpi_ret != MPI_SUCCESS)
return -1;
return file_size;
}
#endif /* H5_HAVE_PARALLEL */
else if (driver == H5FD_FAMILY) {
h5_stat_size_t tot_size = 0;
/* Try all filenames possible, until we find one that's missing */
for (j = 0; /*void*/; j++) {
/* Create the filename to query */
snprintf(temp, sizeof temp, filename, j);
/* Check for existence of file */
if (HDaccess(temp, F_OK) < 0)
break;
/* Get the file's statistics */
if (0 != HDstat(temp, &sb))
return (-1);
/* Add to total size */
tot_size += (h5_stat_size_t)sb.st_size;
} /* end for */
/* Return total size */
return (tot_size);
} /* end if */
else if (driver == H5FD_SUBFILING) {
hsize_t size;
hid_t fid = H5I_INVALID_HID;
if ((fid = H5Fopen(filename, H5F_ACC_RDONLY, fapl)) < 0)
return -1;
if (H5Fget_filesize(fid, &size) < 0) {
H5Fclose(fid);
return -1;
}
if (H5Fclose(fid) < 0)
return -1;
return (h5_stat_size_t)size;
}
else {
/* Get the file's statistics */
if (0 == HDstat(filename, &sb))
return ((h5_stat_size_t)sb.st_size);
} /* end else */
} /* end else */
return (-1);
} /* end get_file_size() */
H5_GCC_CLANG_DIAG_ON("format-nonliteral")
#ifdef H5_HAVE_FILTER_SZIP
/*-------------------------------------------------------------------------
* Function: h5_szip_can_encode
*
* Purpose: Retrieve the filter config flags for szip, tell if
* encoder is available.
*
* Return: 1: decode+encode is enabled
* 0: only decode is enabled
* -1: other
*
*-------------------------------------------------------------------------
*/
int
h5_szip_can_encode(void)
{
unsigned int filter_config_flags;
H5Zget_filter_info(H5Z_FILTER_SZIP, &filter_config_flags);
if ((filter_config_flags & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == 0) {
/* filter present but neither encode nor decode is supported (???) */
return -1;
}
else if ((filter_config_flags & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) ==
H5Z_FILTER_CONFIG_DECODE_ENABLED) {
/* decoder only: read but not write */
return 0;
}
else if ((filter_config_flags & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) ==
H5Z_FILTER_CONFIG_ENCODE_ENABLED) {
/* encoder only: write but not read (???) */
return -1;
}
else if ((filter_config_flags & (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) ==
(H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) {
return 1;
}
return (-1);
}
#endif /* H5_HAVE_FILTER_SZIP */
#ifdef H5_HAVE_PARALLEL
/*-------------------------------------------------------------------------
* Function: getenv_all
*
* Purpose: Used to get the environment that the root MPI task has.
* name specifies which environment variable to look for
* val is the string to which the value of that environment
* variable will be copied.
*
* NOTE: The pointer returned by this function is only
* valid until the next call to getenv_all and the data
* stored there must be copied somewhere else before any
* further calls to getenv_all take place.
*
* Return: pointer to a string containing the value of the environment variable
* NULL if the variable doesn't exist in task 'root's environment.
*
*-------------------------------------------------------------------------
*/
char *
getenv_all(MPI_Comm comm, int root, const char *name)
{
int mpi_size, mpi_rank, mpi_initialized, mpi_finalized;
int len;
static char *env = NULL;
assert(name);
MPI_Initialized(&mpi_initialized);
MPI_Finalized(&mpi_finalized);
if (mpi_initialized && !mpi_finalized) {
MPI_Comm_rank(comm, &mpi_rank);
MPI_Comm_size(comm, &mpi_size);
assert(root < mpi_size);
/* The root task does the getenv call
* and sends the result to the other tasks */
if (mpi_rank == root) {
env = getenv(name);
if (env) {
len = (int)strlen(env);
MPI_Bcast(&len, 1, MPI_INT, root, comm);
MPI_Bcast(env, len, MPI_CHAR, root, comm);
}
else {
/* len -1 indicates that the variable was not in the environment */
len = -1;
MPI_Bcast(&len, 1, MPI_INT, root, comm);
}
}
else {
MPI_Bcast(&len, 1, MPI_INT, root, comm);
if (len >= 0) {
if (env == NULL)
env = (char *)malloc((size_t)len + 1);
else if (strlen(env) < (size_t)len)
env = (char *)realloc(env, (size_t)len + 1);
MPI_Bcast(env, len, MPI_CHAR, root, comm);
env[len] = '\0';
}
else {
if (env)
free(env);
env = NULL;
}
}
#ifndef NDEBUG
MPI_Barrier(comm);
#endif
}
else {
/* use original getenv */
if (env)
free(env);
env = getenv(name);
} /* end if */
return env;
}
#endif
/*-------------------------------------------------------------------------
* Function: h5_make_local_copy
*
* Purpose: Make copy of file. Some tests write to data files under that
* are under version control. Those tests should make a copy of
* the versioned file and write to the copy. This function
* prepends srcdir to the name of the file to be copied and uses
* the name of the copy as is.
*
* Return: Success: 0
*
* Failure: -1
*
*-------------------------------------------------------------------------
*/
int
h5_make_local_copy(const char *origfilename, const char *local_copy_name)
{
int fd_old = (-1), fd_new = (-1); /* File descriptors for copying data */
ssize_t nread; /* Number of bytes read in */
void *buf = NULL; /* Buffer for copying data */
const char *filename = H5_get_srcdir_filename(origfilename); /* Get the test file name to copy */
if (!filename)
goto error;
/* Allocate copy buffer */
if (NULL == (buf = calloc((size_t)1, (size_t)READ_BUF_SIZE)))
goto error;
/* Copy old file into temporary file */
if ((fd_old = HDopen(filename, O_RDONLY)) < 0)
goto error;
if ((fd_new = HDopen(local_copy_name, O_RDWR | O_CREAT | O_TRUNC, H5_POSIX_CREATE_MODE_RW)) < 0)
goto error;
/* Copy data */
while ((nread = HDread(fd_old, buf, (size_t)READ_BUF_SIZE)) > 0)
if (HDwrite(fd_new, buf, (size_t)nread) < 0)
goto error;
/* Close files */
if (HDclose(fd_old) < 0)
goto error;
if (HDclose(fd_new) < 0)
goto error;
/* Release memory */
free(buf);
return 0;
error:
/* ignore return values since we're already noted the problem */
if (fd_old > 0)
HDclose(fd_old);
if (fd_new > 0)
HDclose(fd_new);
free(buf);
return -1;
} /* end h5_make_local_copy() */
/*-------------------------------------------------------------------------
* Function: h5_verify_cached_stabs_cb
*
* Purpose: Callback function for h5_verify_cached_stabs.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
static herr_t
h5_verify_cached_stabs_cb(hid_t oid, const char H5_ATTR_UNUSED *name, const H5O_info2_t *oinfo,
void H5_ATTR_UNUSED *udata)
{
if (oinfo->type == H5O_TYPE_GROUP)
return H5G__verify_cached_stabs_test(oid);
else
return SUCCEED;
} /* end h5_verify_cached_stabs_cb() */
/*-------------------------------------------------------------------------
* Function: h5_verify_cached_stabs
*
* Purpose: Verifies that all groups in every file in base_name have
* their symbol table information cached (if present, and if
* the parent group also uses a symbol table). Does not
* check that the root group's symbol table information is
* cached in the superblock.
*
* Return: Success: 0
*
* Failure: -1
*
*-------------------------------------------------------------------------
*/
herr_t
h5_verify_cached_stabs(const char *base_name[], hid_t fapl)
{
hid_t file = H5I_INVALID_HID;
char filename[1024];
int i = 0;
while (base_name[i]) {
if (h5_fixname(base_name[i], fapl, filename, sizeof(filename)) == NULL)
continue;
H5E_BEGIN_TRY
{
file = H5Fopen(filename, H5F_ACC_RDONLY, fapl);
}
H5E_END_TRY
if (file < 0) {
i++;
continue;
} /* end if */
if (H5Ovisit3(file, H5_INDEX_NAME, H5_ITER_NATIVE, h5_verify_cached_stabs_cb, NULL, H5O_INFO_BASIC) <
0)
goto error;
if (H5Fclose(file) < 0)
goto error;
file = -1;
i++;
} /* end while */
return 0;
error:
H5E_BEGIN_TRY
{
H5Fclose(file);
}
H5E_END_TRY
return -1;
}
/*-------------------------------------------------------------------------
* Function: h5_send_message
*
* Purpose: Sends the specified signal.
*
* In terms of this test framework, a signal consists of a file
* on disk. Since there are multiple processes that need to
* communicate with each other, they do so by writing and
* reading signal files on disk, the names and contents of
* which are used to inform a process about when it can
* proceed and what it should do next.
*
* This function writes a signal file. The first argument is
* the name of the signal file, and the second and third
* arguments are the contents of the first two lines of the
* signal file. The last two arguments may be NULL.
*
* Return: void
*
*-------------------------------------------------------------------------
*/
void
h5_send_message(const char *send, const char *arg1, const char *arg2)
{
FILE *signalfile = NULL;
/* Create signal file (which will send signal to some other process) */
signalfile = fopen(TMP_SIGNAL_FILE, "w+");
/* Write messages to signal file, if provided */
if (arg2 != NULL) {
assert(arg1);
fprintf(signalfile, "%s\n%s\n", arg1, arg2);
} /* end if */
else if (arg1 != NULL) {
assert(arg2 == NULL);
fprintf(signalfile, "%s\n", arg1);
} /* end if */
else {
assert(arg1 == NULL);
assert(arg2 == NULL);
} /* end else */
fclose(signalfile);
rename(TMP_SIGNAL_FILE, send);
} /* h5_send_message() */
/*-------------------------------------------------------------------------
* Function: h5_wait_message
*
* Purpose: Waits for the specified signal.
*
* In terms of this test framework, a signal consists of a file
* on disk. Since there are multiple processes that need to
* communicate with each other, they do so by writing and
* reading signal files on disk, the names and contents of
* which are used to inform a process about when it can
* proceed and what it should do next.
*
* This function continuously attempts to read the specified
* signal file from disk, and only continues once it has
* successfully done so (i.e., only after another process has
* called the "h5_send_message" function to write the signal file).
* This function will then immediately remove the file (i.e.,
* to indicate that it has been received and can be reused),
* and then exits, allowing the calling function to continue.
*
* Return: void
*
*-------------------------------------------------------------------------
*/
herr_t
h5_wait_message(const char *waitfor)
{
FILE *returnfile;
time_t t0, t1;
/* Start timer. If this function runs for too long (i.e.,
expected signal is never received), it will
return failure */
time(&t0);
/* Wait for return signal from some other process */
while ((returnfile = fopen(waitfor, "r")) == NULL) {
/* make note of current time. */
time(&t1);
/* If we've been waiting for a signal for too long, then
it was likely never sent and we should fail rather
than loop infinitely */
if (difftime(t1, t0) > MESSAGE_TIMEOUT) {
fprintf(stdout, "Error communicating between processes. Make sure test script is running.\n");
TEST_ERROR;
} /* end if */
} /* end while */
fclose(returnfile);
HDunlink(waitfor);
return SUCCEED;
error:
return FAIL;
} /* h5_wait_message() */
/* Functions for the dummy VFD class (see below).
*
* Useful for testing things like ID handling where we shouldn't mess with the
* real VFDs.
*/
static H5FD_t *dummy_vfd_open(const char *name, unsigned flags, hid_t fapl_id, haddr_t maxaddr);
static H5FD_t *
dummy_vfd_open(const char H5_ATTR_UNUSED *name, unsigned H5_ATTR_UNUSED flags, hid_t H5_ATTR_UNUSED fapl_id,
haddr_t H5_ATTR_UNUSED maxaddr)
{
return NULL;
}
static herr_t dummy_vfd_close(H5FD_t *_file);
static herr_t
dummy_vfd_close(H5FD_t H5_ATTR_UNUSED *_file)
{
return FAIL;
}
static haddr_t dummy_vfd_get_eoa(const H5FD_t *file, H5FD_mem_t type);
static haddr_t
dummy_vfd_get_eoa(const H5FD_t H5_ATTR_UNUSED *file, H5FD_mem_t H5_ATTR_UNUSED type)
{
return HADDR_UNDEF;
}
static herr_t dummy_vfd_set_eoa(H5FD_t *_file, H5FD_mem_t type, haddr_t addr);
static herr_t
dummy_vfd_set_eoa(H5FD_t H5_ATTR_UNUSED *_file, H5FD_mem_t H5_ATTR_UNUSED type, haddr_t H5_ATTR_UNUSED addr)
{
return FAIL;
}
static haddr_t dummy_vfd_get_eof(const H5FD_t *file, H5FD_mem_t type);
static haddr_t
dummy_vfd_get_eof(const H5FD_t H5_ATTR_UNUSED *file, H5FD_mem_t H5_ATTR_UNUSED type)
{
return HADDR_UNDEF;
}
static herr_t dummy_vfd_read(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr, size_t size,
void *buf);
static herr_t
dummy_vfd_read(H5FD_t H5_ATTR_UNUSED *_file, H5FD_mem_t H5_ATTR_UNUSED type, hid_t H5_ATTR_UNUSED fapl_id,
haddr_t H5_ATTR_UNUSED addr, size_t H5_ATTR_UNUSED size, void H5_ATTR_UNUSED *buf)
{
return FAIL;
}
static herr_t dummy_vfd_write(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr, size_t size,
const void *buf);
static herr_t
dummy_vfd_write(H5FD_t H5_ATTR_UNUSED *_file, H5FD_mem_t H5_ATTR_UNUSED type, hid_t H5_ATTR_UNUSED fapl_id,
haddr_t H5_ATTR_UNUSED addr, size_t H5_ATTR_UNUSED size, const void H5_ATTR_UNUSED *buf)
{
return FAIL;
}
/* Dummy VFD with the minimum parameters to make a VFD that can be registered */
#define DUMMY_VFD_VALUE (H5FD_class_value_t)155
static const H5FD_class_t H5FD_dummy_g = {
H5FD_CLASS_VERSION, /* struct version */
DUMMY_VFD_VALUE, /* value */
"dummy", /* name */
1, /* maxaddr */
H5F_CLOSE_WEAK, /* fc_degree */
NULL, /* terminate */
NULL, /* sb_size */
NULL, /* sb_encode */
NULL, /* sb_decode */
0, /* fapl_size */
NULL, /* fapl_get */
NULL, /* fapl_copy */
NULL, /* fapl_free */
0, /* dxpl_size */
NULL, /* dxpl_copy */
NULL, /* dxpl_free */
dummy_vfd_open, /* open */
dummy_vfd_close, /* close */
NULL, /* cmp */
NULL, /* query */
NULL, /* get_type_map */
NULL, /* alloc */
NULL, /* free */
dummy_vfd_get_eoa, /* get_eoa */
dummy_vfd_set_eoa, /* set_eoa */
dummy_vfd_get_eof, /* get_eof */
NULL, /* get_handle */
dummy_vfd_read, /* read */
dummy_vfd_write, /* write */
NULL, /* read_vector */
NULL, /* write_vector */
NULL, /* read_selection */
NULL, /* write_selection */
NULL, /* flush */
NULL, /* truncate */
NULL, /* lock */
NULL, /* unlock */
NULL, /* del */
NULL, /* ctl */
H5FD_FLMAP_DICHOTOMY /* fl_map */
};
/*-------------------------------------------------------------------------
* Function: h5_get_dummy_vfd_class()
*
* Purpose: Returns a disposable, generally non-functional,
* VFD class struct.
*
* In some of the test code, we need a disposable VFD but
* we don't want to mess with the real VFDs and we also
* don't have access to the internals of the real VFDs (which
* use static globals and functions) to easily duplicate
* them (e.g.: for testing VFD ID handling).
*
* This API call will return a pointer to a VFD class that
* can be used to construct a test VFD using H5FDregister().
*
* Return: Success: A pointer to a VFD class struct
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
H5FD_class_t *
h5_get_dummy_vfd_class(void)
{
H5FD_class_t *vfd_class = NULL; /* Dummy VFD that will be returned */
/* Create the class and initialize everything to zero/NULL */
if (NULL == (vfd_class = (H5FD_class_t *)malloc(sizeof(H5FD_class_t))))
TEST_ERROR;
/* Copy the dummy VFD */
memcpy(vfd_class, &H5FD_dummy_g, sizeof(H5FD_class_t));
return vfd_class;
error:
if (vfd_class)
free(vfd_class);
return NULL;
} /* h5_get_dummy_vfd_class */
/*-------------------------------------------------------------------------
* Function: h5_get_dummy_vol_class()
*
* Purpose: Returns a disposable, generally non-functional,
* VOL class struct.
*
* In some of the test code, we need a disposable VOL connector
* but we don't want to mess with the real VFDs and we also
* don't have access to the internals of the real VOL connectors
* (which use static globals and functions) to easily duplicate
* them (e.g.: for testing VOL connector ID handling).
*
* This API call will return a pointer to a VOL class that
* can be used to construct a test VOL using H5VLregister_connector().
*
* Return: Success: A pointer to a VOL class struct
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
H5VL_class_t *
h5_get_dummy_vol_class(void)
{
H5VL_class_t *vol_class = NULL; /* Dummy VOL class that will be returned */
/* Create the class and initialize everything to zero/NULL */
if (NULL == (vol_class = (H5VL_class_t *)calloc((size_t)1, sizeof(H5VL_class_t))))
TEST_ERROR;
/* Fill in the minimum parameters to make a VOL connector class that
* can be registered.
*/
vol_class->version = H5VL_VERSION;
vol_class->name = "dummy";
return vol_class;
error:
if (vol_class)
free(vol_class);
return NULL;
} /* h5_get_dummy_vol_class */
/*-------------------------------------------------------------------------
* Function: h5_get_version_string
*
* Purpose: Get the string that corresponds to the libvery version bound.
*
* Return: The string
*
*-------------------------------------------------------------------------
*/
H5_ATTR_PURE const char *
h5_get_version_string(H5F_libver_t libver)
{
return (LIBVER_NAMES[libver]);
} /* end of h5_get_version_string */
/*-------------------------------------------------------------------------
* Function: h5_compare_file_bytes()
*
* Purpose: Helper function to compare two files byte-for-byte
*
* Return: Success: 0, if files are identical
* Failure: -1, if files differ
*
*-------------------------------------------------------------------------
*/
int
h5_compare_file_bytes(char *f1name, char *f2name)
{
FILE *f1ptr = NULL; /* two file pointers */
FILE *f2ptr = NULL;
HDoff_t f1size = 0; /* size of the files */
HDoff_t f2size = 0;
char f1char = 0; /* one char from each file */
char f2char = 0;
HDoff_t ii = 0;
int ret_value = 0; /* for error handling */
/* Open files for reading */
f1ptr = fopen(f1name, "rb");
if (f1ptr == NULL) {
fprintf(stderr, "Unable to fopen() %s\n", f1name);
ret_value = -1;
goto done;
}
f2ptr = fopen(f2name, "rb");
if (f2ptr == NULL) {
fprintf(stderr, "Unable to fopen() %s\n", f2name);
ret_value = -1;
goto done;
}
/* Get the file sizes and verify that they equal */
HDfseek(f1ptr, 0, SEEK_END);
f1size = HDftell(f1ptr);
HDfseek(f2ptr, 0, SEEK_END);
f2size = HDftell(f2ptr);
if (f1size != f2size) {
fprintf(stderr, "Files differ in size, %" PRIuHSIZE " vs. %" PRIuHSIZE "\n", (hsize_t)f1size,
(hsize_t)f2size);
ret_value = -1;
goto done;
}
/* Compare each byte and fail if a difference is found */
rewind(f1ptr);
rewind(f2ptr);
for (ii = 0; ii < f1size; ii++) {
if (fread(&f1char, 1, 1, f1ptr) != 1) {
ret_value = -1;
goto done;
}
if (fread(&f2char, 1, 1, f2ptr) != 1) {
ret_value = -1;
goto done;
}
if (f1char != f2char) {
fprintf(stderr, "Mismatch @ 0x%" PRIXHSIZE ": 0x%X != 0x%X\n", (hsize_t)ii, f1char, f2char);
ret_value = -1;
goto done;
}
}
done:
if (f1ptr)
fclose(f1ptr);
if (f2ptr)
fclose(f2ptr);
return ret_value;
} /* end h5_compare_file_bytes() */
/*-------------------------------------------------------------------------
* Function: H5_get_srcdir_filename
*
* Purpose: Append the test file name to the srcdir path and return the whole string
*
* Return: The string or NULL (errors or not enough space)
*
*-------------------------------------------------------------------------
*/
const char *
H5_get_srcdir_filename(const char *filename)
{
const char *srcdir = H5_get_srcdir();
/* Check for error */
if (NULL == srcdir)
return NULL;
/* Build path to test file. We're checking the length so suppress
* the gcc format-truncation warning.
*/
if ((strlen(srcdir) + strlen("testfiles/") + strlen(filename) + 1) < sizeof(srcdir_testpath)) {
H5_GCC_DIAG_OFF("format-truncation")
snprintf(srcdir_testpath, sizeof(srcdir_testpath), "%stestfiles/%s", srcdir, filename);
H5_GCC_DIAG_ON("format-truncation")
return srcdir_testpath;
}
/* If not enough space, just return NULL */
return NULL;
} /* end H5_get_srcdir_filename() */
/*-------------------------------------------------------------------------
* Function: H5_get_srcdir
*
* Purpose: Just return the srcdir path
*
* Return: The string
*
*-------------------------------------------------------------------------
*/
const char *
H5_get_srcdir(void)
{
const char *srcdir = getenv("srcdir");
/* Check for using the srcdir from configure time */
if (NULL == srcdir)
srcdir = config_srcdir;
/* Build path to all test files */
if ((strlen(srcdir) + 2) < sizeof(srcdir_path)) {
snprintf(srcdir_path, sizeof(srcdir_path), "%s/", srcdir);
return (srcdir_path);
} /* end if */
else
return (NULL);
} /* end H5_get_srcdir() */
/*-------------------------------------------------------------------------
* Function: h5_duplicate_file_by_bytes
*
* Purpose: Duplicate a file byte-for-byte at filename/path 'orig'
* to a new (or replaced) file at 'dest'.
*
* Return: Success: 0, completed successfully
* Failure: -1
*
*-------------------------------------------------------------------------
*/
int
h5_duplicate_file_by_bytes(const char *orig, const char *dest)
{
FILE *orig_ptr = NULL;
FILE *dest_ptr = NULL;
size_t fsize = 0;
size_t read_size = 0;
size_t max_buf = 0;
void *dup_buf = NULL;
int ret_value = 0;
max_buf = 4096 * sizeof(char);
orig_ptr = fopen(orig, "rb");
if (NULL == orig_ptr) {
ret_value = -1;
goto done;
}
HDfseek(orig_ptr, 0, SEEK_END);
fsize = (size_t)HDftell(orig_ptr);
rewind(orig_ptr);
dest_ptr = fopen(dest, "wb");
if (NULL == dest_ptr) {
ret_value = -1;
goto done;
}
read_size = MIN(fsize, max_buf);
dup_buf = malloc(read_size);
if (NULL == dup_buf) {
ret_value = -1;
goto done;
}
while (read_size > 0) {
if (fread(dup_buf, read_size, 1, orig_ptr) != 1) {
ret_value = -1;
goto done;
}
fwrite(dup_buf, read_size, 1, dest_ptr);
fsize -= read_size;
read_size = MIN(fsize, max_buf);
}
done:
if (orig_ptr != NULL)
fclose(orig_ptr);
if (dest_ptr != NULL)
fclose(dest_ptr);
if (dup_buf != NULL)
free(dup_buf);
return ret_value;
} /* end h5_duplicate_file_by_bytes() */
/*-------------------------------------------------------------------------
* Function: h5_check_if_file_locking_enabled
*
* Purpose: Checks if file locking is enabled on this file system.
*
* Return: SUCCEED/FAIL
* are_enabled will be false if file locking is disabled on
* the file system of if there were errors.
*
*-------------------------------------------------------------------------
*/
herr_t
h5_check_if_file_locking_enabled(bool *is_enabled)
{
const char *filename = "locking_test_file";
int pmode = O_RDWR | O_CREAT | O_TRUNC;
int fd = -1;
*is_enabled = true;
if ((fd = HDopen(filename, pmode, H5_POSIX_CREATE_MODE_RW)) < 0)
goto error;
/* Test HDflock() to see if it works */
if (HDflock(fd, LOCK_EX | LOCK_NB) < 0) {
if (ENOSYS == errno) {
/* When errno is set to ENOSYS, the file system does not support
* locking, so ignore it. This is most frequently used on
* Lustre. If we also want to check for disabled NFS locks
* we'll need to check for ENOLCK, too. That isn't done by
* default here since that could also represent an actual
* error condition.
*/
errno = 0;
*is_enabled = false;
}
else
goto error;
}
if (HDflock(fd, LOCK_UN) < 0)
goto error;
if (HDclose(fd) < 0)
goto error;
if (HDremove(filename) < 0)
goto error;
return SUCCEED;
error:
*is_enabled = false;
if (fd > -1) {
HDclose(fd);
HDremove(filename);
}
return FAIL;
} /* end h5_check_if_file_locking_enabled() */
/*-------------------------------------------------------------------------
* Function: h5_check_file_locking_env_var
*
* Purpose: Checks if the HDF5_USE_FILE_LOCKING file locking
* environment variable is set and parses its value if so.
*
* If the environment variable is not set, both `use_locks`
* and `ignore_disabled_locks` will be set to FAIL to indicate
* this. Otherwise, they will each be set appropriately based
* on the setting for the environment variable.
*
* Return: Nothing
*
*-------------------------------------------------------------------------
*/
void
h5_check_file_locking_env_var(htri_t *use_locks, htri_t *ignore_disabled_locks)
{
char *lock_env_var = NULL;
assert(use_locks);
assert(ignore_disabled_locks);
lock_env_var = getenv(HDF5_USE_FILE_LOCKING);
if (lock_env_var && (!strcmp(lock_env_var, "FALSE") || !strcmp(lock_env_var, "0"))) {
*use_locks = false; /* Override: Never use locks */
*ignore_disabled_locks = FAIL;
}
else if (lock_env_var && !strcmp(lock_env_var, "BEST_EFFORT")) {
*use_locks = true; /* Override: Always use locks */
*ignore_disabled_locks = true; /* Override: Ignore disabled locks */
}
else if (lock_env_var && (!strcmp(lock_env_var, "TRUE") || !strcmp(lock_env_var, "1"))) {
*use_locks = true; /* Override: Always use locks */
*ignore_disabled_locks = false; /* Override: Don't ignore disabled locks */
}
else {
/* Environment variable not set, or not set correctly */
*use_locks = FAIL;
*ignore_disabled_locks = FAIL;
}
}
/*-------------------------------------------------------------------------
* Function: h5_using_native_vol
*
* Purpose: Checks if the VOL connector being used is (or the VOL
* connector stack being used resolves to) the native VOL
* connector. Either or both of fapl_id and obj_id may be
* provided, but checking of obj_id takes precedence.
* H5I_INVALID_HID should be specified for the parameter that
* is not provided.
*
* obj_id must be the ID of an HDF5 object that is accessed
* with the VOL connector to check. If obj_id is provided, the
* entire VOL connector stack is checked to see if it resolves
* to the native VOL connector. If only fapl_id is provided,
* only the top-most VOL connector set on fapl_id is checked
* against the native VOL connector.
*
* The HDF5_VOL_CONNECTOR environment variable is not checked
* here, as that only overrides the setting for the default
* File Access Property List, which may not be the File Access
* Property List used for accessing obj_id. There is also
* complexity in determining whether the connector stack
* resolves to the native VOL connector when the only
* information available is a string.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
h5_using_native_vol(hid_t fapl_id, hid_t obj_id, bool *is_native_vol)
{
hbool_t is_native = false;
hid_t native_id = H5I_INVALID_HID;
hid_t vol_id = H5I_INVALID_HID;
herr_t ret_value = SUCCEED;
assert((fapl_id >= 0) || (obj_id >= 0));
assert(is_native_vol);
if (fapl_id == H5P_DEFAULT)
fapl_id = H5P_FILE_ACCESS_DEFAULT;
if (obj_id >= 0) {
if (H5VLobject_is_native(obj_id, &is_native) < 0) {
ret_value = FAIL;
goto done;
}
}
else {
if (true != H5VLis_connector_registered_by_value(H5VL_NATIVE_VALUE)) {
ret_value = FAIL;
goto done;
}
if ((native_id = H5VLget_connector_id_by_value(H5VL_NATIVE_VALUE)) < 0) {
ret_value = FAIL;
goto done;
}
if (H5Pget_vol_id(fapl_id, &vol_id) < 0) {
ret_value = FAIL;
goto done;
}
if (vol_id == native_id)
is_native = true;
}
*is_native_vol = is_native;
done:
if (vol_id != H5I_INVALID_HID)
H5VLclose(vol_id);
if (native_id != H5I_INVALID_HID)
H5VLclose(native_id);
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5_get_test_driver_name
*
* Purpose: Checks the HDF5_DRIVER and HDF5_TEST_DRIVER environment
* variables to see if a driver name has been set for testing.
*
* Return: Driver name if set/NULL otherwise
*
*-------------------------------------------------------------------------
*/
const char *
h5_get_test_driver_name(void)
{
char *envval;
assert(H5_DEFAULT_VFD == H5FD_SEC2);
if ((envval = getenv(HDF5_DRIVER)))
return envval;
else if ((envval = getenv("HDF5_TEST_DRIVER")))
return envval;
else
return H5_DEFAULT_VFD_NAME;
}
/*-------------------------------------------------------------------------
* Function: h5_using_default_driver
*
* Purpose: Checks if the specified VFD name matches the library's
* default VFD. If `drv_name` is NULL, the HDF5_DRIVER and
* HDF5_TEST_DRIVER environment variables are checked instead
* (if set).
*
* Return: true/false
*
*-------------------------------------------------------------------------
*/
bool
h5_using_default_driver(const char *drv_name)
{
bool ret_val = true;
assert(H5_DEFAULT_VFD == H5FD_SEC2);
if (!drv_name)
drv_name = h5_get_test_driver_name();
if (drv_name)
return !strcmp(drv_name, H5_DEFAULT_VFD_NAME);
return ret_val;
}
/*-------------------------------------------------------------------------
* Function: h5_using_parallel_driver
*
* Purpose: Checks if the current VFD set on the given FAPL is a
* parallel-enabled VFD (The MPI I/O VFD, for example).
*
* This is mostly useful for avoiding tests that use features
* which are not currently supported for parallel HDF5, such
* as writing of VL or region reference datatypes.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
h5_using_parallel_driver(hid_t fapl_id, bool *driver_is_parallel)
{
unsigned long feat_flags = 0;
hid_t driver_id = H5I_INVALID_HID;
herr_t ret_value = SUCCEED;
assert(fapl_id >= 0);
assert(driver_is_parallel);
if (fapl_id == H5P_DEFAULT)
fapl_id = H5P_FILE_ACCESS_DEFAULT;
if ((driver_id = H5Pget_driver(fapl_id)) < 0)
return FAIL;
if (H5FDdriver_query(driver_id, &feat_flags) < 0)
return FAIL;
*driver_is_parallel = (feat_flags & H5FD_FEAT_HAS_MPI);
return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5_driver_is_default_vfd_compatible
*
* Purpose: Checks if the current VFD set on the given FAPL creates a
* file that is compatible with the default VFD. Some examples
* are the core and MPI I/O drivers. Some counterexamples are
* the multi and family drivers, which split the HDF5 file
* into several different files.
*
* This routine is helpful for skipping tests that use
* pre-generated files. VFDs that create files which aren't
* compatible with the default VFD will generally not be able
* to open these pre-generated files and those particular
* tests will fail.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
herr_t
h5_driver_is_default_vfd_compatible(hid_t fapl_id, bool *default_vfd_compatible)
{
unsigned long feat_flags = 0;
hid_t driver_id = H5I_INVALID_HID;
herr_t ret_value = SUCCEED;
assert(fapl_id >= 0);
assert(default_vfd_compatible);
if (fapl_id == H5P_DEFAULT)
fapl_id = H5P_FILE_ACCESS_DEFAULT;
if ((driver_id = H5Pget_driver(fapl_id)) < 0)
return FAIL;
if (H5FDdriver_query(driver_id, &feat_flags) < 0)
return FAIL;
*default_vfd_compatible = (feat_flags & H5FD_FEAT_DEFAULT_VFD_COMPATIBLE);
return ret_value;
} /* end h5_driver_is_default_vfd_compatible() */
/*-------------------------------------------------------------------------
* Function: h5_driver_uses_multiple_files
*
* Purpose: Checks if the specified VFD name matches a driver that
* stores data using multiple files.
*
* The following flags can be used to control what types of
* drivers are checked for by this routine:
*
* H5_EXCLUDE_MULTIPART_DRIVERS - This flag excludes any
* drivers which store data using multiple files which,
* together, make up a single logical file. These are
* drivers like the split, multi and family drivers.
*
* H5_EXCLUDE_NON_MULTIPART_DRIVERS - This flag excludes any
* drivers which store data using multiple files which are
* separate logical files. The splitter driver is an example
* of this type of driver.
*
* Eventually, this should become a VFD feature flag so this
* check is less fragile.
*
* Return: true/false
*
*-------------------------------------------------------------------------
*/
bool
h5_driver_uses_multiple_files(const char *drv_name, unsigned flags)
{
bool ret_val = false;
if (!drv_name)
drv_name = h5_get_test_driver_name();
if (drv_name) {
if ((flags & H5_EXCLUDE_MULTIPART_DRIVERS) == 0) {
if (!strcmp(drv_name, "split") || !strcmp(drv_name, "multi") || !strcmp(drv_name, "family") ||
!strcmp(drv_name, H5FD_SUBFILING_NAME))
return true;
}
if ((flags & H5_EXCLUDE_NON_MULTIPART_DRIVERS) == 0) {
if (!strcmp(drv_name, "splitter"))
return true;
}
}
return ret_val;
}
/* Deterministic random number functions that don't modify the underlying
* C/POSIX library rand/random state, as this can cause spurious test failures.
*
* Adapted from the example code in the POSIX.1-2001 standard.
*/
static unsigned int next_g = 1;
int
h5_local_rand(void)
{
next_g = next_g * 1103515245 + 12345;
return next_g & RAND_MAX;
}
void
h5_local_srand(unsigned int seed)
{
next_g = seed;
}