void gpfs_free_all_locks(int fd)
{
int rc;
struct {
gpfsFcntlHeader_t header;
gpfsFreeRange_t release;
} release_all;
release_all.header.totalLength = sizeof(release_all);
release_all.header.fcntlVersion = GPFS_FCNTL_CURRENT_VERSION;
release_all.header.fcntlReserved = 0;
release_all.release.structLen = sizeof(release_all.release);
release_all.release.structType = GPFS_FREE_RANGE;
release_all.release.start = 0;
release_all.release.length = 0;
rc = gpfs_fcntl(fd, &release_all);
if (verbose >= VERBOSE_0 && rc != 0) {
EWARN("gpfs_fcntl release all locks hint failed.");
}
}
static void gpfs_free_all_locks(int fd)
{
int rc;
struct {
gpfsFcntlHeader_t header;
gpfsFreeRange_t release;
} release_all;
release_all.header.totalLength = sizeof(release_all);
release_all.header.fcntlVersion = GPFS_FCNTL_CURRENT_VERSION;
release_all.header.fcntlReserved = 0;
release_all.release.structLen = sizeof(release_all.release);
release_all.release.structType = GPFS_FREE_RANGE;
release_all.release.start = 0;
release_all.release.length = 0;
rc = gpfs_fcntl(fd, &release_all);
if (rc != 0) {
DBGV_FPRINTF(stderr,"GPFS fcntl release failed with rc=%d, errno=%d\n",
rc,errno);
}
}
void gpfs_access_start(int fd, IOR_offset_t length, IOR_param_t *param, int access)
{
int rc;
struct {
gpfsFcntlHeader_t header;
gpfsAccessRange_t access;
} take_locks;
take_locks.header.totalLength = sizeof(take_locks);
take_locks.header.fcntlVersion = GPFS_FCNTL_CURRENT_VERSION;
take_locks.header.fcntlReserved = 0;
take_locks.access.structLen = sizeof(take_locks.access);
take_locks.access.structType = GPFS_ACCESS_RANGE;
take_locks.access.start = param->offset;
take_locks.access.length = length;
take_locks.access.isWrite = (access == WRITE);
rc = gpfs_fcntl(fd, &take_locks);
if (verbose >= VERBOSE_2 && rc != 0) {
EWARN("gpfs_fcntl access range hint failed.");
}
}
void gpfs_access_end(int fd, IOR_offset_t length, IOR_param_t *param, int access)
{
int rc;
struct {
gpfsFcntlHeader_t header;
gpfsFreeRange_t free;
} free_locks;
free_locks.header.totalLength = sizeof(free_locks);
free_locks.header.fcntlVersion = GPFS_FCNTL_CURRENT_VERSION;
free_locks.header.fcntlReserved = 0;
free_locks.free.structLen = sizeof(free_locks.free);
free_locks.free.structType = GPFS_FREE_RANGE;
free_locks.free.start = param->offset;
free_locks.free.length = length;
rc = gpfs_fcntl(fd, &free_locks);
if (verbose >= VERBOSE_2 && rc != 0) {
EWARN("gpfs_fcntl free range hint failed.");
}
}
static void *
process_request(void *arg)
{
unsigned long long end_byte, bytes_written;
struct thread_info *tinfo = (struct thread_info *) arg;
/* Open a fileHandle to the file for this thread */
/* Declare a new range for the chunk and make GPFS aware of this */
//gpfsAccessRange_t *rinfo = (gpfsAccessRange_t *)malloc(sizeof(gpfsAccessRange_t));
/* Fill the range information */
//rinfo->length = tinfo->num_bytes;
//rinfo->isWrite = 1; /* Write access */
gpfs_access_t *fileAccess = (gpfs_access_t *)malloc(sizeof(gpfs_access_t));
fileAccess.header.totalLength = sizeof(gpfsFileArg);
fileAccess.header.fcntlVersion = GPFS_FCNTL_CURRENT_VERSION;
fileAccess.header.fcntlReserved = 0;
fileAccess.release.structLen = sizeof(gpfsFileArg.release);
fileAccess.release.structType = GPFS_CLEAR_FILE_CACHE;
fileAccess.access.structLen = sizeof(gpfsFileArg.access);
fileAccess.access.structType = GPFS_ACCESS_RANGE;
fileAccess.access.start = 2LL * 1024LL * 1024LL * 1024LL;
fileAccess.access.length = 1024 * 1024 * 1024;
fileAccess.access.isWrite = 1;
/* Apply the range information */
if (gpfs_fcntl(fileHandle, &gpfsFileArg) != 0)
{
fprintf(stderr, "gpfs_fcntl free range failed for range %d:%d. errno=%d errorOffset=%d\n", start, length, errno, free_range.hdr.errorOffset);
exit(EXIT_FAILURE);
}
end_byte = tinfo->start_byte + tinfo->num_bytes;
fprintf(stdout, "tn: %d\tStart: %d\tEnd: %d\n", tinfo->thread_num, tinfo->start_byte, end_byte);
// start timer
// open the file at startBlock
// zeroFill the file until startBlock + fillSize
// stop timer
// print stats
//fprintf(stdout, "Thread %d wrote %d bytes in %d seconds (%d MB/sec)", zerofFillRequestProcess, , , );
/* Free the GPFS access range */
return (NULL);
}
