static ssize_t builtin_posix_module_element_write_strided_internal (builtin_posix_module_t *posix_module, hio_element_t element,
off_t offset, const void *ptr, size_t count, size_t size,
size_t stride) {
hio_dataset_t dataset = hioi_element_dataset (element);
size_t bytes_written = 0, ret;
hio_file_t *file;
uint64_t stop, start;
int rc;
assert (dataset->ds_flags & HIO_FLAG_WRITE);
if (!(count * size)) {
return 0;
}
if (0 == stride) {
size *= count;
count = 1;
}
start = hioi_gettime ();
errno = 0;
for (size_t i = 0 ; i < count ; ++i) {
size_t req = size, actual;
do {
actual = req;
rc = builtin_posix_element_translate (posix_module, element, offset, &actual,
&file, false);
assert (file);
if (HIO_SUCCESS != rc) {
break;
}
ret = fwrite (ptr, 1, actual, file->f_hndl);
if (ret > 0) {
bytes_written += ret;
file->f_offset += ret;
}
if (ret < actual) {
/* short write */
break;
}
req -= actual;
offset += actual;
ptr = (void *) ((intptr_t) ptr + actual);
} while (req);
if (HIO_SUCCESS != rc || req) {
break;
}
ptr = (void *) ((intptr_t) ptr + stride);
}
if (0 == bytes_written || HIO_SUCCESS != rc) {
if (0 == bytes_written) {
rc = hioi_err_errno (errno);
}
dataset->ds_status = rc;
return rc;
}
if (offset + bytes_written > element->e_size) {
element->e_size = offset + bytes_written;
}
stop = hioi_gettime ();
dataset->ds_stat.s_wtime += stop - start;
if (0 < bytes_written) {
dataset->ds_stat.s_bwritten += bytes_written;
}
hioi_log (hioi_object_context (&element->e_object), HIO_VERBOSE_DEBUG_LOW, "posix: finished write. bytes written: "
"%lu, time: %llu usec", bytes_written, stop - start);
return bytes_written;
}
static ssize_t builtin_posix_module_element_read_strided_internal (builtin_posix_module_t *posix_module, hio_element_t element,
off_t offset, void *ptr, size_t count, size_t size,
size_t stride) {
builtin_posix_module_dataset_t *posix_dataset = (builtin_posix_module_dataset_t *) hioi_element_dataset (element);
size_t bytes_read = 0, ret;
hio_file_t *file;
uint64_t start, stop;
int rc;
if (!(count * size)) {
return 0;
}
errno = 0;
start = hioi_gettime ();
for (size_t i = 0 ; i < count ; ++i) {
size_t req = size, actual;
do {
actual = req;
rc = builtin_posix_element_translate (posix_module, element, offset, &actual,
&file, true);
if (HIO_SUCCESS != rc) {
break;
}
ret = fread (ptr, 1, actual, file->f_hndl);
if (ret > 0) {
bytes_read += ret;
file->f_offset += ret;
}
if (ret < actual) {
/* short read */
break;
}
req -= actual;
offset += actual;
ptr = (void *) ((intptr_t) ptr + actual);
} while (req);
if (req || HIO_SUCCESS != rc) {
break;
}
ptr = (void *) ((intptr_t) ptr + stride);
}
if (0 == bytes_read || HIO_SUCCESS != rc) {
if (0 == bytes_read) {
rc = hioi_err_errno (errno);
}
return rc;
}
stop = hioi_gettime ();
posix_dataset->base.ds_stat.s_rtime += stop - start;
posix_dataset->base.ds_stat.s_bread += bytes_read;
return bytes_read;
}
static ssize_t builtin_posix_module_element_read_strided_internal (builtin_posix_module_t *posix_module, hio_element_t element,
uint64_t offset, void *ptr, size_t count, size_t size,
size_t stride) {
builtin_posix_module_dataset_t *posix_dataset = (builtin_posix_module_dataset_t *) hioi_element_dataset (element);
size_t bytes_read = 0, ret;
hio_file_t *file;
uint64_t start, stop;
int rc;
if (0 == count || 0 == size) {
return 0;
}
errno = 0;
start = hioi_gettime ();
for (size_t i = 0 ; i < count ; ++i) {
size_t req = size, actual;
do {
actual = req;
/* find out where the data lives */
POSIX_TRACE_CALL(posix_dataset, rc = builtin_posix_element_translate (posix_module, element, offset, &actual,
&file, true),
"element_translate", offset, req);
if (HIO_SUCCESS != rc) {
break;
}
POSIX_TRACE_CALL(posix_dataset, ret = hioi_file_read (file, ptr, actual), "file_read", offset, actual);
if (ret > 0) {
bytes_read += ret;
}
if (ret < actual) {
/* short read */
break;
}
req -= actual;
offset += actual;
ptr = (void *) ((intptr_t) ptr + actual);
} while (req);
if (req || HIO_SUCCESS != rc) {
break;
}
ptr = (void *) ((intptr_t) ptr + stride);
}
if (0 == bytes_read || HIO_SUCCESS != rc) {
if (0 == bytes_read && HIO_SUCCESS == rc) {
rc = hioi_err_errno (errno);
}
return rc;
}
stop = hioi_gettime ();
posix_dataset->base.ds_stat.s_rtime += stop - start;
posix_dataset->base.ds_stat.s_bread += bytes_read;
return bytes_read;
}
