mirror/hdf5
2
0
Fork 0
mirror of https://github.com/HDFGroup/hdf5.git synced 2025-03-31 17:10:47 +08:00
Code Issues Packages Projects Releases Wiki Activity

First pass of converting H5PB_* routines to use shared file pointers.

Browse Source
This commit is contained in:
Quincey Koziol 2019-08-19 18:48:06 -05:00
parent df36318b5f
commit f285c76ef2
8 changed files with 151 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/H5Fint.c
View File

@ -1910,7 +1910,7 @@ H5F__flush_phase2(H5F_t *f, hbool_t closing)
HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "unable to flush metadata accumulator")
/* Flush the page buffer */
if(H5PB_flush(f) < 0)
if(H5PB_flush(f->shared) < 0)
/* Push error, but keep going*/
HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "page buffer flush failed")

2
src/H5Fio.c
View File

@ -159,7 +159,7 @@ H5F_block_write(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, const void
map_type = (type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : type;
/* Pass through page buffer layer */
if(H5PB_write(f, map_type, addr, size, buf) < 0)
if(H5PB_write(f->shared, map_type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "write through page buffer failed")
done:

32
src/H5Fmpi.c
View File

@ -168,6 +168,38 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_mpi_get_comm() */
/*-------------------------------------------------------------------------
* Function: H5F_shared_mpi_get_size
*
* Purpose: Retrieves the size of an MPI process.
*
* Return: Success: The size (positive)
*
* Failure: Negative
*
* Programmer: John Mainzer
* Friday, May 6, 2005
*
*-------------------------------------------------------------------------
*/
int
H5F_shared_mpi_get_size(const H5F_file_t *f_sh)
{
int ret_value = -1;
FUNC_ENTER_NOAPI((-1))
HDassert(f_sh);
/* Dispatch to driver */
if((ret_value = H5FD_mpi_get_size(f_sh->lf)) < 0)
HGOTO_ERROR(H5E_VFL, H5E_CANTGET, (-1), "driver get_size request failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_shared_mpi_get_size() */
/*-------------------------------------------------------------------------
* Function: H5F_mpi_get_size

7
src/H5Fprivate.h
View File

@ -294,6 +294,7 @@ typedef struct H5F_t H5F_t;
#define H5F_GET_READ_ATTEMPTS(F) ((F)->shared->read_attempts)
#define H5F_DRIVER_ID(F) ((F)->shared->lf->driver_id)
#define H5F_GET_FILENO(F,FILENUM) ((FILENUM) = (F)->shared->lf->fileno)
#define H5F_SHARED_HAS_FEATURE(F_SH,FL) ((F_SH)->lf->feature_flags & (FL))
#define H5F_HAS_FEATURE(F,FL) ((F)->shared->lf->feature_flags & (FL))
#define H5F_BASE_ADDR(F) ((F)->shared->sblock->base_addr)
#define H5F_SYM_LEAF_K(F) ((F)->shared->sblock->sym_leaf_k)
@ -337,6 +338,7 @@ typedef struct H5F_t H5F_t;
#else /* H5F_MODULE */
#define H5F_LOW_BOUND(F) (H5F_get_low_bound(F))
#define H5F_HIGH_BOUND(F) (H5F_get_high_bound(F))
#define H5F_SHARED_INTENT(F_SH) (H5F_shared_get_intent(F_SH))
#define H5F_INTENT(F) (H5F_get_intent(F))
#define H5F_OPEN_NAME(F) (H5F_get_open_name(F))
#define H5F_ACTUAL_NAME(F) (H5F_get_actual_name(F))
@ -352,6 +354,7 @@ typedef struct H5F_t H5F_t;
#define H5F_GET_READ_ATTEMPTS(F) (H5F_get_read_attempts(F))
#define H5F_DRIVER_ID(F) (H5F_get_driver_id(F))
#define H5F_GET_FILENO(F,FILENUM) (H5F_get_fileno((F), &(FILENUM)))
#define H5F_SHARED_HAS_FEATURE(F_SH,FL) (H5F_shared_has_feature(F_SH,FL))
#define H5F_HAS_FEATURE(F,FL) (H5F_has_feature(F,FL))
#define H5F_BASE_ADDR(F) (H5F_get_base_addr(F))
#define H5F_SYM_LEAF_K(F) (H5F_sym_leaf_k(F))
@ -724,6 +727,7 @@ H5_DLL hid_t H5F_get_file_id(hid_t obj_id, H5I_type_t id_type, hbool_t app_ref);
/* Functions that retrieve values from the file struct */
H5_DLL H5F_libver_t H5F_get_low_bound(const H5F_t *f);
H5_DLL H5F_libver_t H5F_get_high_bound(const H5F_t *f);
H5_DLL unsigned H5F_shared_get_intent(const H5F_file_t *f);
H5_DLL unsigned H5F_get_intent(const H5F_t *f);
H5_DLL char *H5F_get_open_name(const H5F_t *f);
H5_DLL char *H5F_get_actual_name(const H5F_t *f);
@ -787,7 +791,9 @@ H5_DLL char *H5F_mdc_log_location(const H5F_t *f);
/* Functions that retrieve values from VFD layer */
H5_DLL hid_t H5F_get_driver_id(const H5F_t *f);
H5_DLL herr_t H5F_get_fileno(const H5F_t *f, unsigned long *filenum);
H5_DLL hbool_t H5F_shared_has_feature(const H5F_file_t *f, unsigned feature);
H5_DLL hbool_t H5F_has_feature(const H5F_t *f, unsigned feature);
H5_DLL haddr_t H5F_shared_get_eoa(const H5F_file_t *f_sh, H5FD_mem_t type);
H5_DLL haddr_t H5F_get_eoa(const H5F_t *f, H5FD_mem_t type);
H5_DLL herr_t H5F_get_vfd_handle(const H5F_t *file, hid_t fapl, void **file_handle);
@ -838,6 +844,7 @@ H5_DLL herr_t H5F_eoa_dirty(H5F_t *f);
H5_DLL herr_t H5F_get_mpi_handle(const H5F_t *f, MPI_File **f_handle);
H5_DLL int H5F_mpi_get_rank(const H5F_t *f);
H5_DLL MPI_Comm H5F_mpi_get_comm(const H5F_t *f);
H5_DLL int H5F_shared_mpi_get_size(const H5F_file_t *f_sh);
H5_DLL int H5F_mpi_get_size(const H5F_t *f);
H5_DLL herr_t H5F_mpi_retrieve_comm(hid_t loc_id, hid_t acspl_id, MPI_Comm *mpi_comm);
H5_DLL herr_t H5F_get_mpi_info(const H5F_t *f, MPI_Info **f_info);

69
src/H5Fquery.c
View File

@ -73,6 +73,28 @@
/*******************/
/*-------------------------------------------------------------------------
* Function: H5F_shared_get_intent
*
* Purpose: Quick and dirty routine to retrieve the file's 'intent' flags
* (Mainly added to stop non-file routines from poking about in the
* H5F_file_t data structure)
*
* Return: 'intent' on success/abort on failure (shouldn't fail)
*-------------------------------------------------------------------------
*/
unsigned
H5F_shared_get_intent(const H5F_file_t *f_sh)
{
/* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOERR
HDassert(f_sh);
FUNC_LEAVE_NOAPI(f_sh->flags)
} /* end H5F_shared_get_intent() */
/*-------------------------------------------------------------------------
* Function: H5F_get_intent
@ -825,6 +847,27 @@ H5F_store_msg_crt_idx(const H5F_t *f)
FUNC_LEAVE_NOAPI(f->shared->store_msg_crt_idx)
} /* end H5F_store_msg_crt_idx() */
/*-------------------------------------------------------------------------
* Function: H5F_shared_has_feature
*
* Purpose: Check if a file has a particular feature enabled
*
* Return: Success: Non-negative - TRUE or FALSE
* Failure: Negative (should not happen)
*-------------------------------------------------------------------------
*/
hbool_t
H5F_shared_has_feature(const H5F_file_t *f_sh, unsigned feature)
{
/* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */
FUNC_ENTER_NOAPI_NOINIT_NOERR
HDassert(f_sh);
FUNC_LEAVE_NOAPI((hbool_t)(f_sh->lf->feature_flags & feature))
} /* end H5F_shared_has_feature() */
/*-------------------------------------------------------------------------
* Function: H5F_has_feature
@ -902,6 +945,32 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_get_fileno() */
/*-------------------------------------------------------------------------
* Function: H5F_shared_get_eoa
*
* Purpose: Quick and dirty routine to retrieve the file's 'eoa' value
*
* Return: Non-negative on success/Negative on failure
*-------------------------------------------------------------------------
*/
haddr_t
H5F_shared_get_eoa(const H5F_file_t *f_sh, H5FD_mem_t type)
{
haddr_t ret_value = HADDR_UNDEF; /* Return value */
FUNC_ENTER_NOAPI(HADDR_UNDEF)
HDassert(f_sh);
/* Dispatch to driver */
if(HADDR_UNDEF == (ret_value = H5FD_get_eoa(f_sh->lf, type)))
HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, HADDR_UNDEF, "driver get_eoa request failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_shared_get_eoa() */
/*-------------------------------------------------------------------------
* Function: H5F_get_eoa

83
src/H5PB.c
View File

@ -124,8 +124,8 @@ typedef struct {
/* Local Prototypes */
/********************/
static herr_t H5PB__insert_entry(H5PB_t *page_buf, H5PB_entry_t *page_entry);
static htri_t H5PB__make_space(H5F_t *f, H5PB_t *page_buf, H5FD_mem_t inserted_type);
static herr_t H5PB__write_entry(H5F_t *f, H5PB_entry_t *page_entry);
static htri_t H5PB__make_space(H5F_file_t *f_sh, H5PB_t *page_buf, H5FD_mem_t inserted_type);
static herr_t H5PB__write_entry(H5F_file_t *f_sh, H5PB_entry_t *page_entry);
/*********************/
@ -370,18 +370,18 @@ static herr_t
H5PB__flush_cb(void *item, void H5_ATTR_UNUSED *key, void *_op_data)
{
H5PB_entry_t *page_entry = (H5PB_entry_t *)item; /* Pointer to page entry node */
H5F_t *f = (H5F_t *)_op_data;
H5F_file_t *f_sh = (H5F_file_t *)_op_data;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_STATIC
/* Sanity checks */
HDassert(page_entry);
HDassert(f);
HDassert(f_sh);
/* Flush the page if it's dirty */
if(page_entry->is_dirty)
if(H5PB__write_entry(f, page_entry) < 0)
if(H5PB__write_entry(f_sh, page_entry) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_WRITEERROR, FAIL, "file write failed")
done:
@ -401,21 +401,21 @@ done:
*-------------------------------------------------------------------------
*/
herr_t
H5PB_flush(H5F_t *f)
H5PB_flush(H5F_file_t *f_sh)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity check */
HDassert(f);
HDassert(f_sh);
/* Flush all the entries in the PB skiplist, if we have write access on the file */
if(f->shared->page_buf && (H5F_ACC_RDWR & H5F_INTENT(f))) {
H5PB_t *page_buf = f->shared->page_buf;
if(f_sh->page_buf && (H5F_ACC_RDWR & H5F_SHARED_INTENT(f_sh))) {
H5PB_t *page_buf = f_sh->page_buf;
/* Iterate over all entries in page buffer skip list */
if(H5SL_iterate(page_buf->slist_ptr, H5PB__flush_cb, (void *)f))
if(H5SL_iterate(page_buf->slist_ptr, H5PB__flush_cb, f_sh))
HGOTO_ERROR(H5E_PAGEBUF, H5E_BADITER, FAIL, "can't flush page buffer skip list")
} /* end if */
@ -487,7 +487,7 @@ H5PB_dest(H5F_t *f)
H5PB_t *page_buf = f->shared->page_buf;
H5PB_ud1_t op_data; /* Iteration context */
if(H5PB_flush(f) < 0)
if(H5PB_flush(f->shared) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_CANTFLUSH, FAIL, "can't flush page buffer")
/* Set up context info */
@ -895,7 +895,7 @@ H5PB_read(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, void *buf/*out*/
htri_t can_make_space;
/* check if we can make space in page buffer */
if((can_make_space = H5PB__make_space(f, page_buf, type)) < 0)
if((can_make_space = H5PB__make_space(f->shared, page_buf, type)) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_NOSPACE, FAIL, "make space in Page buffer Failed")
/* if make_space returns 0, then we can't use the page
@ -981,7 +981,7 @@ done:
*-------------------------------------------------------------------------
*/
herr_t
H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
H5PB_write(H5F_file_t *f_sh, H5FD_mem_t type, haddr_t addr,
size_t size, const void *buf)
{
H5PB_t *page_buf; /* Page buffering info for this file */
@ -999,20 +999,20 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f);
HDassert(f_sh);
/* Get pointer to page buffer info for this file */
page_buf = f->shared->page_buf;
page_buf = f_sh->page_buf;
#ifdef H5_HAVE_PARALLEL
if(H5F_HAS_FEATURE(f, H5FD_FEAT_HAS_MPI)) {
if(H5F_SHARED_HAS_FEATURE(f_sh, H5FD_FEAT_HAS_MPI)) {
#if 1
bypass_pb = TRUE;
#else
/* MSC - why this stopped working ? */
int mpi_size;
if((mpi_size = H5F_mpi_get_size(f)) < 0)
if((mpi_size = H5F_shared_mpi_get_size(f_sh)) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_CANTGET, FAIL, "can't retrieve MPI communicator size")
if(1 != mpi_size)
bypass_pb = TRUE;
@ -1025,7 +1025,7 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
* buffering.
*/
if(NULL == page_buf || size >= page_buf->page_size || bypass_pb) {
if(H5F__accum_write(f->shared, type, addr, size, buf) < 0)
if(H5F__accum_write(f_sh, type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_WRITEERROR, FAIL, "write through metadata accumulator failed")
/* Update statistics */
@ -1084,7 +1084,7 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
} /* end else */
/* Translate to file driver I/O info object */
file = f->shared->lf;
file = f_sh->lf;
/* Check if existing pages for raw data need to be updated since raw data access is not atomic */
if(H5FD_MEM_DRAW == type && size >= page_buf->page_size) {
@ -1186,7 +1186,7 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
else
page_buf->hits[0]++;
} /* end if */
/* If not found */
/* If not found */
else {
void *new_page_buf;
size_t page_size = page_buf->page_size;
@ -1196,7 +1196,7 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
htri_t can_make_space;
/* Check if we can make space in page buffer */
if((can_make_space = H5PB__make_space(f, page_buf, type)) < 0)
if((can_make_space = H5PB__make_space(f_sh, page_buf, type)) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_NOSPACE, FAIL, "make space in Page buffer Failed")
/* If make_space returns 0, then we can't use the page
@ -1208,14 +1208,14 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
/* Write to VFD and return */
if(H5FD_write(file, type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_WRITEERROR, FAIL, "driver write request failed")
/* Break out of loop */
break;
} /* end if */
} /* end if */
/* Don't bother searching if there is no write access */
if(H5F_ACC_RDWR & H5F_INTENT(f))
if(H5F_ACC_RDWR & H5F_SHARED_INTENT(f_sh))
/* Lookup & remove the page from the new skip list page if
* it exists to see if this is a new page from the MF layer
*/
@ -1258,7 +1258,7 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
page_entry->type = (H5F_mem_page_t)type;
/* Retrieve the 'eoa' for the file */
if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
if(HADDR_UNDEF == (eoa = H5F_shared_get_eoa(f_sh, type)))
HGOTO_ERROR(H5E_PAGEBUF, H5E_CANTGET, FAIL, "driver get_eoa request failed")
/* If the entire page falls outside the EOA, then fail */
@ -1269,8 +1269,8 @@ H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr,
* returned will most likely be HADDR_UNDEF, so skip
* that check.
*/
if(!H5F_HAS_FEATURE(f, H5FD_FEAT_HAS_MPI))
if(HADDR_UNDEF == (eof = H5FD_get_eof(f->shared->lf, H5FD_MEM_DEFAULT)))
if(!H5F_SHARED_HAS_FEATURE(f_sh, H5FD_FEAT_HAS_MPI))
if(HADDR_UNDEF == (eof = H5FD_get_eof(f_sh->lf, H5FD_MEM_DEFAULT)))
HGOTO_ERROR(H5E_PAGEBUF, H5E_CANTGET, FAIL, "driver get_eof request failed")
/* Adjust the read size to not go beyond the EOA */
@ -1360,26 +1360,19 @@ done:
/*-------------------------------------------------------------------------
* Function: H5PB__make_space()
*
* Purpose: ???
*
* This function was created without documentation.
* What follows is my best understanding of Mohamad's intent.
*
* If necessary and if possible, evict a page from the page
* buffer to make space for the supplied page. Depending on
* the page buffer configuration and contents, and the page
* Purpose: If necessary and if possible, evict a page from the page
* buffer to make space for the supplied page. Depending on
* the page buffer configuration and contents, and the page
* supplied this may or may not be possible.
*
* JRM -- 12/22/16
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mohamad Chaarawi
*
*-------------------------------------------------------------------------
*/
static htri_t
H5PB__make_space(H5F_t *f, H5PB_t *page_buf, H5FD_mem_t inserted_type)
static htri_t
H5PB__make_space(H5F_file_t *f_sh, H5PB_t *page_buf, H5FD_mem_t inserted_type)
{
H5PB_entry_t *page_entry; /* Pointer to page eviction candidate */
htri_t ret_value = TRUE; /* Return value */
@ -1387,7 +1380,7 @@ H5PB__make_space(H5F_t *f, H5PB_t *page_buf, H5FD_mem_t inserted_type)
FUNC_ENTER_STATIC
/* Sanity check */
HDassert(f);
HDassert(f_sh);
HDassert(page_buf);
/* Get oldest entry */
@ -1444,7 +1437,7 @@ H5PB__make_space(H5F_t *f, H5PB_t *page_buf, H5FD_mem_t inserted_type)
/* Flush page if dirty */
if(page_entry->is_dirty)
if(H5PB__write_entry(f, page_entry) < 0)
if(H5PB__write_entry(f_sh, page_entry) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_WRITEERROR, FAIL, "file write failed")
/* Update statistics */
@ -1478,7 +1471,7 @@ done:
*-------------------------------------------------------------------------
*/
static herr_t
H5PB__write_entry(H5F_t *f, H5PB_entry_t *page_entry)
H5PB__write_entry(H5F_file_t *f_sh, H5PB_entry_t *page_entry)
{
haddr_t eoa; /* Current EOA for the file */
herr_t ret_value = SUCCEED; /* Return value */
@ -1486,11 +1479,11 @@ H5PB__write_entry(H5F_t *f, H5PB_entry_t *page_entry)
FUNC_ENTER_STATIC
/* Sanity check */
HDassert(f);
HDassert(f_sh);
HDassert(page_entry);
/* Retrieve the 'eoa' for the file */
if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, (H5FD_mem_t)page_entry->type)))
if(HADDR_UNDEF == (eoa = H5F_shared_get_eoa(f_sh, (H5FD_mem_t)page_entry->type)))
HGOTO_ERROR(H5E_PAGEBUF, H5E_CANTGET, FAIL, "driver get_eoa request failed")
/* If the starting address of the page is larger than
@ -1498,14 +1491,14 @@ H5PB__write_entry(H5F_t *f, H5PB_entry_t *page_entry)
*/
if(page_entry->addr <= eoa) {
H5FD_t *file; /* File driver I/O info */
size_t page_size = f->shared->page_buf->page_size;
size_t page_size = f_sh->page_buf->page_size;
/* Adjust the page length if it exceeds the EOA */
if((page_entry->addr + page_size) > eoa)
page_size = (size_t)(eoa - page_entry->addr);
/* Translate to file driver I/O info object */
file = f->shared->lf;
file = f_sh->lf;
if(H5FD_write(file, (H5FD_mem_t)page_entry->type, page_entry->addr, page_size, page_entry->page_buf_ptr) < 0)
HGOTO_ERROR(H5E_PAGEBUF, H5E_WRITEERROR, FAIL, "file write failed")

4
src/H5PBprivate.h
View File

@ -86,13 +86,13 @@ typedef struct H5PB_t {
/* General routines */
H5_DLL herr_t H5PB_create(H5F_t *file, size_t page_buffer_size, unsigned page_buf_min_meta_perc, unsigned page_buf_min_raw_perc);
H5_DLL herr_t H5PB_flush(H5F_t *f);
H5_DLL herr_t H5PB_flush(H5F_file_t *f_sh);
H5_DLL herr_t H5PB_dest(H5F_t *f);
H5_DLL herr_t H5PB_add_new_page(H5F_t *f, H5FD_mem_t type, haddr_t page_addr);
H5_DLL herr_t H5PB_update_entry(H5PB_t *page_buf, haddr_t addr, size_t size, const void *buf);
H5_DLL herr_t H5PB_remove_entry(const H5F_t *f, haddr_t addr);
H5_DLL herr_t H5PB_read(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, void *buf/*out*/);
H5_DLL herr_t H5PB_write(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, const void *buf);
H5_DLL herr_t H5PB_write(H5F_file_t *f_sh, H5FD_mem_t type, haddr_t addr, size_t size, const void *buf);
/* Statistics routines */
H5_DLL herr_t H5PB_reset_stats(H5PB_t *page_buf);

2
testpar/t_file.c
View File

@ -250,7 +250,7 @@ test_page_buffer_access(void)
VRFY((ret == 0), "");
VRFY((H5SL_count(f->shared->page_buf->slist_ptr) == page_count), "Wrong number of pages in PB");
ret = H5PB_flush(f);
ret = H5PB_flush(f->shared);
VRFY((ret == 0), "");
/* read elements 0 - 200 */