static void
pool_open(const char *path, size_t bsize)
{
PMEMblkpool *pbp = pmemblk_open(path, bsize);
if (pbp == NULL)
UT_OUT("!%s: pmemblk_open", path);
else {
UT_OUT("%s: pmemblk_open: Success", path);
pmemblk_close(pbp);
}
}
int
main(int argc, char *argv[])
{
PMEMblkpool *pbp;
struct asset asset;
int assetid;
if (argc < 4) {
fprintf(stderr, "usage: %s assetdb asset-ID name\n", argv[0]);
exit(1);
}
const char *path = argv[1];
assetid = atoi(argv[2]);
/* open an array of atomically writable elements */
if ((pbp = pmemblk_open(path, sizeof (struct asset))) == NULL) {
perror("pmemblk_open");
exit(1);
}
/* read a required element in */
if (pmemblk_read(pbp, &asset, (off_t)assetid) < 0) {
perror("pmemblk_read");
exit(1);
}
/* check if it contains any data */
if ((asset.state != ASSET_FREE) &&
(asset.state != ASSET_CHECKED_OUT)) {
fprintf(stderr, "Asset ID %d not found", assetid);
exit(1);
}
if (asset.state == ASSET_CHECKED_OUT) {
fprintf(stderr, "Asset ID %d already checked out\n", assetid);
exit(1);
}
/* update user name, set checked out state, and take timestamp */
strncpy(asset.user, argv[3], ASSET_USER_NAME_MAX - 1);
asset.user[ASSET_USER_NAME_MAX - 1] = '\0';
asset.state = ASSET_CHECKED_OUT;
time(&asset.time);
/* put it back in the block */
if (pmemblk_write(pbp, &asset, assetid) < 0) {
perror("pmemblk_write");
exit(1);
}
pmemblk_close(pbp);
}
int
main(int argc, char *argv[])
{
PMEMblkpool *pbp;
int assetid;
size_t nelements;
struct asset asset;
if (argc < 2) {
fprintf(stderr, "usage: %s assetdb\n", argv[0]);
exit(1);
}
const char *path = argv[1];
/* open an array of atomically writable elements */
if ((pbp = pmemblk_open(path, sizeof(struct asset))) == NULL) {
perror(path);
exit(1);
}
/* how many elements do we have? */
nelements = pmemblk_nblock(pbp);
/* print out all the elements that contain assets data */
for (assetid = 0; assetid < nelements; ++assetid) {
if (pmemblk_read(pbp, &asset, assetid) < 0) {
perror("pmemblk_read");
exit(1);
}
if ((asset.state != ASSET_FREE) &&
(asset.state != ASSET_CHECKED_OUT)) {
break;
}
printf("Asset ID: %d\n", assetid);
if (asset.state == ASSET_FREE)
printf(" State: Free\n");
else {
printf(" State: Checked out\n");
printf(" User: %s\n", asset.user);
printf(" Time: %s", ctime(&asset.time));
}
printf(" Name: %s\n", asset.name);
}
pmemblk_close(pbp);
}
int
main(int argc, char *argv[])
{
PMEMblkpool *pbp;
struct asset asset;
int assetid;
if (argc < 3) {
fprintf(stderr, "usage: %s assetdb asset-ID\n", argv[0]);
exit(1);
}
const char *path = argv[1];
assetid = atoi(argv[2]);
assert(assetid > 0);
/* open an array of atomically writable elements */
if ((pbp = pmemblk_open(path, sizeof(struct asset))) == NULL) {
perror("pmemblk_open");
exit(1);
}
/* read a required element in */
if (pmemblk_read(pbp, &asset, assetid) < 0) {
perror("pmemblk_read");
exit(1);
}
/* check if it contains any data */
if ((asset.state != ASSET_FREE) &&
(asset.state != ASSET_CHECKED_OUT)) {
fprintf(stderr, "Asset ID %d not found\n", assetid);
exit(1);
}
/* change state to free, clear user name and timestamp */
asset.state = ASSET_FREE;
asset.user[0] = '\0';
asset.time = 0;
if (pmemblk_write(pbp, &asset, assetid) < 0) {
perror("pmemblk_write");
exit(1);
}
pmemblk_close(pbp);
}
int
main(int argc, char *argv[])
{
START(argc, argv, "blk_nblock");
if (argc < 2)
FATAL("usage: %s bsize:file...", argv[0]);
/* map each file argument with the given map type */
for (int arg = 1; arg < argc; arg++) {
char *fname;
size_t bsize = strtoul(argv[arg], &fname, 0);
if (*fname != ':')
FATAL("usage: %s bsize:file...", argv[0]);
fname++;
PMEMblkpool *handle;
handle = pmemblk_create(fname, bsize, 0, S_IWUSR | S_IRUSR);
if (handle == NULL) {
OUT("!%s: pmemblk_create", fname);
} else {
OUT("%s: block size %zu usable blocks: %zu",
fname, bsize, pmemblk_nblock(handle));
ASSERTeq(pmemblk_bsize(handle), bsize);
pmemblk_close(handle);
int result = pmemblk_check(fname, bsize);
if (result < 0)
OUT("!%s: pmemblk_check", fname);
else if (result == 0)
OUT("%s: pmemblk_check: not consistent", fname);
else {
ASSERTeq(pmemblk_check(fname, bsize + 1), -1);
ASSERTeq(pmemblk_check(fname, 0), 1);
handle = pmemblk_open(fname, 0);
ASSERTeq(pmemblk_bsize(handle), bsize);
pmemblk_close(handle);
}
}
}
DONE(NULL);
}
int
main(int argc, char *argv[])
{
START(argc, argv, "blk_non_zero");
if (argc < 5)
UT_FATAL("usage: %s bsize file func [file_size] op:lba...",
argv[0]);
int read_arg = 1;
Bsize = strtoul(argv[read_arg++], NULL, 0);
const char *path = argv[read_arg++];
PMEMblkpool *handle = NULL;
switch (*argv[read_arg++]) {
case 'c': {
size_t fsize = strtoul(argv[read_arg++], NULL, 0);
handle = pmemblk_create(path, Bsize, fsize,
S_IRUSR | S_IWUSR);
if (handle == NULL)
UT_FATAL("!%s: pmemblk_create", path);
break;
}
case 'o':
handle = pmemblk_open(path, Bsize);
if (handle == NULL)
UT_FATAL("!%s: pmemblk_open", path);
break;
default:
UT_FATAL("unrecognized command %s", argv[read_arg - 1]);
}
UT_OUT("%s block size %zu usable blocks %zu",
argv[1], Bsize, pmemblk_nblock(handle));
UT_OUT("is zeroed:\t%d", is_zeroed(path));
/* map each file argument with the given map type */
for (; read_arg < argc; read_arg++) {
if (strchr("rwze", argv[read_arg][0]) == NULL ||
argv[read_arg][1] != ':')
UT_FATAL("op must be r: or w: or z: or e:");
off_t lba = strtoul(&argv[read_arg][2], NULL, 0);
unsigned char buf[Bsize];
switch (argv[read_arg][0]) {
case 'r':
if (pmemblk_read(handle, buf, lba) < 0)
UT_OUT("!read lba %zu", lba);
else
UT_OUT("read lba %zu: %s", lba,
ident(buf));
break;
case 'w':
construct(buf);
if (pmemblk_write(handle, buf, lba) < 0)
UT_OUT("!write lba %zu", lba);
else
UT_OUT("write lba %zu: %s", lba,
ident(buf));
break;
case 'z':
if (pmemblk_set_zero(handle, lba) < 0)
UT_OUT("!set_zero lba %zu", lba);
else
UT_OUT("set_zero lba %zu", lba);
break;
case 'e':
if (pmemblk_set_error(handle, lba) < 0)
UT_OUT("!set_error lba %zu", lba);
else
UT_OUT("set_error lba %zu", lba);
break;
}
}
pmemblk_close(handle);
int result = pmemblk_check(path, Bsize);
if (result < 0)
UT_OUT("!%s: pmemblk_check", path);
else if (result == 0)
UT_OUT("%s: pmemblk_check: not consistent", path);
DONE(NULL);
}
static fio_pmemblk_file_t pmb_open(const char *pathspec, int flags)
{
fio_pmemblk_file_t pmb;
char *path = NULL;
uint64_t bsize = 0;
uint64_t fsize = 0;
pmb_parse_path(pathspec, &path, &bsize, &fsize);
if (!path)
return NULL;
pthread_mutex_lock(&CacheLock);
pmb = fio_pmemblk_cache_lookup(path);
if (!pmb) {
/* load libpmemblk if needed */
if (!pmemblk_open)
if (load_libpmemblk(getenv("FIO_PMEMBLK_LIB")))
goto error;
pmb = malloc(sizeof(*pmb));
if (!pmb)
goto error;
/* try opening existing first, create it if needed */
pmb->pmb_pool = pmemblk_open(path, bsize);
if (!pmb->pmb_pool && (errno == ENOENT) &&
(flags & PMB_CREATE) && (0 < fsize) && (0 < bsize)) {
pmb->pmb_pool =
pmemblk_create(path, bsize, fsize, 0644);
}
if (!pmb->pmb_pool) {
log_err
("fio: enable to open pmemblk pool file (errno %d)\n",
errno);
goto error;
}
pmb->pmb_filename = path;
pmb->pmb_next = NULL;
pmb->pmb_refcnt = 0;
pmb->pmb_bsize = pmemblk_bsize(pmb->pmb_pool);
pmb->pmb_nblocks = pmemblk_nblock(pmb->pmb_pool);
fio_pmemblk_cache_insert(pmb);
}
pmb->pmb_refcnt += 1;
pthread_mutex_unlock(&CacheLock);
return pmb;
error:
if (pmb) {
if (pmb->pmb_pool)
pmemblk_close(pmb->pmb_pool);
pmb->pmb_pool = NULL;
pmb->pmb_filename = NULL;
free(pmb);
}
if (path)
free(path);
pthread_mutex_unlock(&CacheLock);
return NULL;
}
int
main(int argc, char *argv[])
{
START(argc, argv, "blk_rw");
if (argc < 5)
FATAL("usage: %s bsize file func op:lba...", argv[0]);
Bsize = strtoul(argv[1], NULL, 0);
const char *path = argv[2];
PMEMblkpool *handle;
switch (*argv[3]) {
case 'c':
handle = pmemblk_create(path, Bsize, 0,
S_IWUSR | S_IRUSR);
if (handle == NULL)
FATAL("!%s: pmemblk_create", path);
break;
case 'o':
handle = pmemblk_open(path, Bsize);
if (handle == NULL)
FATAL("!%s: pmemblk_open", path);
break;
}
OUT("%s block size %zu usable blocks %zu",
argv[1], Bsize, pmemblk_nblock(handle));
/* map each file argument with the given map type */
for (int arg = 4; arg < argc; arg++) {
if (strchr("rwze", argv[arg][0]) == NULL || argv[arg][1] != ':')
FATAL("op must be r: or w: or z: or e:");
off_t lba = strtol(&argv[arg][2], NULL, 0);
unsigned char buf[Bsize];
switch (argv[arg][0]) {
case 'r':
if (pmemblk_read(handle, buf, lba) < 0)
OUT("!read lba %jd", lba);
else
OUT("read lba %jd: %s", lba, ident(buf));
break;
case 'w':
construct(buf);
if (pmemblk_write(handle, buf, lba) < 0)
OUT("!write lba %jd", lba);
else
OUT("write lba %jd: %s", lba, ident(buf));
break;
case 'z':
if (pmemblk_set_zero(handle, lba) < 0)
OUT("!set_zero lba %jd", lba);
else
OUT("set_zero lba %jd", lba);
break;
case 'e':
if (pmemblk_set_error(handle, lba) < 0)
OUT("!set_error lba %jd", lba);
else
OUT("set_error lba %jd", lba);
break;
}
}
pmemblk_close(handle);
int result = pmemblk_check(path, Bsize);
if (result < 0)
OUT("!%s: pmemblk_check", path);
else if (result == 0)
OUT("%s: pmemblk_check: not consistent", path);
DONE(NULL);
}
int
main(int argc, char *argv[])
{
struct blk_arguments arguments;
/* set the random seed value */
srand(time(NULL));
/* set default values */
memset(&arguments, 0, sizeof (struct blk_arguments));
arguments.block_size = 512;
arguments.num_ops = 100;
arguments.file_size = (PMEMBLK_MIN_POOL / 1024) / 1024;
if (argp_parse(&argp, argc, argv, 0, 0, &arguments) != 0) {
exit(1);
}
struct worker_info worker_params[arguments.thread_count];
memset(worker_params, 0, sizeof (struct worker_info));
/* set common values */
worker_params[0].block_size = arguments.block_size;
worker_params[0].num_ops = arguments.num_ops;
worker_params[0].file_lanes = arguments.thread_count;
/* file_size is provided in MB */
unsigned long long file_size_bytes = arguments.file_size * 1024 * 1024;
worker *thread_workers = NULL;
/* prepare parameters specific for file/pmem */
if (arguments.file_io) {
/* prepare open flags */
int flags = O_RDWR | O_CREAT | O_SYNC;
/* create file on PMEM-aware file system */
if ((worker_params[0].file_desc = open(arguments.file_path,
flags, FILE_MODE)) < 0) {
perror(arguments.file_path);
exit(1);
}
/* pre-allocate file_size MB of persistent memory */
if ((errno = posix_fallocate(worker_params[0].file_desc,
(off_t)0, (off_t)file_size_bytes)) != 0) {
warn("posix_fallocate");
close(worker_params[0].file_desc);
exit(1);
}
worker_params[0].num_blocks = file_size_bytes
/ worker_params[0].block_size;
thread_workers = file_workers;
} else {
worker_params[0].file_desc = -1;
if (arguments.prep_blk_file) {
if ((worker_params[0].handle = pmemblk_create(
arguments.file_path,
worker_params[0].block_size,
(off_t)file_size_bytes, FILE_MODE)) == NULL) {
err(1, "%s: pmemblk_open", argv[2]);
}
} else {
if ((worker_params[0].handle = pmemblk_open(
arguments.file_path,
worker_params[0].block_size)) == NULL) {
err(1, "%s: pmemblk_open", argv[2]);
}
}
worker_params[0].num_blocks = pmemblk_nblock(
worker_params[0].handle);
thread_workers = pmem_workers;
}
/* propagate params to each info_t */
for (int i = 1; i < arguments.thread_count; ++i) {
memcpy(&worker_params[i], &worker_params[0],
sizeof (struct worker_info));
worker_params[i].thread_index = i;
worker_params[i].seed = rand();
}
/* The blk mode file prep */
if (arguments.prep_blk_file) {
if (worker_params[0].file_desc >= 0)
close(worker_params[0].file_desc);
return run_threads(prep_worker, arguments.thread_count,
worker_params);
}
struct measurements perf_meas;
perf_meas.total_ops = arguments.thread_count
* worker_params[0].num_ops;
/* perform PMEMBLK warmup */
if (!arguments.file_io) {
if (run_threads(warmup_worker, arguments.thread_count,
worker_params) != 0) {
if (worker_params[0].file_desc >= 0)
close(worker_params[0].file_desc);
exit(1);
}
}
for (int i = 0; i < WORKER_COUNT_MAX; ++i) {
clock_gettime(CLOCK_MONOTONIC, &perf_meas.start_time);
if (run_threads(thread_workers[i], arguments.thread_count,
worker_params) != 0) {
if (worker_params[0].file_desc >= 0)
close(worker_params[0].file_desc);
exit(1);
}
clock_gettime(CLOCK_MONOTONIC, &perf_meas.stop_time);
calculate_stats(&perf_meas);
printf("%f;%f;", perf_meas.total_run_time,
perf_meas.ops_per_second);
}
printf("\n");
if (worker_params[0].file_desc >= 0)
close(worker_params[0].file_desc);
/* cleanup and check pmem file */
if (!arguments.file_io) {
pmemblk_close(worker_params[0].handle);
/* not really necessary, but check consistency */
int result = pmemblk_check(arguments.file_path);
if (result < 0) {
warn("%s: pmemblk_check",
arguments.file_path);
} else if (result == 0) {
warnx("%s: pmemblk_check: not consistent",
arguments.file_path);
}
}
exit(0);
}