#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <assert.h>
#include <sys/time.h>
#include "sion.h"
#include "sion_debug.h"
#include "sion_error_handler.h"
#include "sion_filedesc.h"
#include "sion_tools.h"
#include "sion_fd.h"
#include "sion_file.h"
#include "sion_metadata.h"
#include "sion_internal.h"
#include "sion_internal_seek.h"
#include "sion_hints.h"
#include "sion_printts.h"
#include "sion_buffer.h"
#include "sion_dup.h"
#include "sion_lock.h"
#include "sion_buddy_common.h"

Include dependency graph for sion_common.c:

Macros
#define	_XOPEN_SOURCE 700

#define	DFUNCTION "sion_dup"

#define	DFUNCTION "sion_dedup"

#define	DFUNCTION "sion_lock_register_lock_callbacks"

#define	DFUNCTION "sion_lock_user_callbacks_defined"

Functions
sion_io_stat_t *	sion_get_io_info_buddy (int sid, int roles, int flag)

int	sion_get_locations (int sid, int ntasks, int maxchunks, sion_int64 globalskip, sion_int64 start_of_varheader, sion_int64 sion_chunksizes, sion_int64 sion_globalranks, sion_int64 sion_blockcount, sion_int64 sion_blocksizes)
	Returns pointers to internal fields. More...

int	_sion_close_sid (int sid)

int	sion_get_current_location (int sid, int currentchunknr, sion_int64 currentpos, int maxchunks, sion_int64 *chunksizes)
	Returns current position in file and pointer fiels containing chunk sizes. More...

int	sion_get_mapping (int sid, int mapping_size, sion_int32 mapping, int numfiles)
	Returns pointers to the internal field mapping. More...

int	sion_get_file_endianness (int sid)
	Returns edianness of data in file sid. More...

int	sion_endianness_swap_needed (int sid)
	Returns whether or not byte swapping is needed for sid. More...

int	sion_get_current_locations (int sid, int ntasks, sion_int64 sion_currentpos, sion_int64 *sion_currentblocknr)
	Returns current position in file and pointer fiels containing chunk sizes. More...

int	sion_get_number_of_files (int sid)

int	sion_get_filenumber (int sid)

int	sion_is_serial_opened (int sid)

int	sion_using_hints (int sid)

sion_int64	sion_get_bytes_written (int sid)

sion_int64	sion_get_bytes_read (int sid)

sion_io_stat_t *	sion_get_io_info (int sid)

sion_io_stat_t *	sion_get_io_info_by_spec (int sid, int roles, int flag)

int	sion_free_io_info (sion_io_stat_t *p)

size_t	sion_fwrite (const void *data, size_t size, size_t nitems, int sid)
	Write data to sion file. More...

size_t	sion_fread (void *data, size_t size, size_t nitems, int sid)
	Read data from sion file. More...

int	sion_seek (int sid, int rank, int currentblocknr, sion_int64 posinblk)
	Function to set the file pointer to a new position. More...

int	sion_seek_fp (int sid, int rank, int currentblocknr, sion_int64 posinblk, FILE **fileptr)
	Deprecated. Use sion_seek() instead. More...

int	sion_feof (int sid)
	Function that indicates whether the end of file is reached for this task. More...

sion_int64	sion_bytes_avail_in_block (int sid)
	Return the number of bytes available in the current chunk. More...

sion_int64	sion_bytes_avail_in_chunk (int sid)
	Function that returns the number of bytes available in the current chunk. More...

sion_int64	sion_get_position (int sid)
	Function that returns the current file position. More...

int	sion_set_fp_closed (int sid)

int	sion_set_second_fp (int sid, FILE *secondfd)

int	sion_unset_second_fp (int sid)

int	sion_optimize_fp_buffer (int sid)

int	sion_flush (int sid)
	Flushed sion file. More...

int	sion_ensure_free_space (int sid, sion_int64 bytes)
	Funtion to ensure that enough space is available for writing. More...

int	sion_is_thread_safe ()

int	sion_get_sizeof (int sid, int numbytes, int numfds)
	Function returns size of internal data structure for sid. More...

int	sion_dup (int sid, int mode, int rank, uint64_t key)
	Function which duplicates a sion file descriptor. More...

int	sion_dedup (int sid)
	Function which destroy a duplicated sion file descriptor. More...

int	sion_lock_register_lock_callbacks (int lock(void ), int unlock(void ), void *lock_data)
	Function which registers callback funtions for lock and unlock internal access to shared data structures. More...

int	sion_lock_user_callbacks_defined ()
	Function which return flag, if user callback for locking are registered. More...

Detailed Description

Common SIONlib functions

Definition in file sion_common.c.

Function Documentation

◆ sion_bytes_avail_in_block()

sion_int64 sion_bytes_avail_in_block ( int sid )

Return the number of bytes available in the current chunk.

See sion_bytes_avail_in_block_description.

Parameters

[in] sid sion file handle

Returns: rc>0 number of bytes rc<=0 file position is after end of block

Definition at line 834 of file sion_common.c.

References sion_bytes_avail_in_chunk().

Referenced by fsion_bytes_avail_in_block_c().

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◆ sion_bytes_avail_in_chunk()

sion_int64 sion_bytes_avail_in_chunk ( int sid )

Function that returns the number of bytes available in the current chunk.

This function returns the number of bytes remaining in the current chunk (bytes not read). It is a local function, which can be called independently from other MPI tasks.

Parameters

[in] sid sion file handle

Returns: rc>0 number of bytes rc<=0 file position is after end of block

Examples: simple/sionpar.c, and simple/sionser.c.

Definition at line 849 of file sion_common.c.

Referenced by sion_bytes_avail_in_block().

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◆ sion_dedup()

int sion_dedup ( int sid )

Function which destroy a duplicated sion file descriptor.

Parameters

[in] sid sion file handle

Returns: SION_SUCCESS okay

Definition at line 1150 of file sion_common.c.

◆ sion_dup()

int sion_dup	(	int	sid,
		int	mode,
		int	rank,
		uint64_t	key
	)

Function which duplicates a sion file descriptor.

Restrictions:

only in read mode
only in parallel mode
collective operation are not callable on the new sid

Parameters

[in]	sid	sion file handle
[in]	mode	one of SION_DUP_ALL, SION_DUP_RANK, SION_DUP_RANK_KEY
[in]	rank	dup only those part of the internal data struture which are needed to read rank rank from file
[in]	key	dup only those part of the internal data struture which are needed to read on the rank rank data for key key from file

Returns: new sid if ok, SION_ID_NOT_VALID in other cases

Definition at line 1116 of file sion_common.c.

◆ sion_ensure_free_space()

int sion_ensure_free_space	(	int	sid,
		sion_int64	bytes
	)

Funtion to ensure that enough space is available for writing.

See sion_ensure_free_space_description

Parameters

[in]	sid	sion file handle
[in]	bytes	number of bytes requested for the next write operation

Returns: SION_SUCCESS if ok

Definition at line 1008 of file sion_common.c.

Referenced by fsion_ensure_free_space_c().

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◆ sion_feof()

int sion_feof ( int sid )

Function that indicates whether the end of file is reached for this task.

See sion_feof_description.

Parameters

[in] sid sion file handle (in)

Returns: SION_SUCCESS (1) if end of last chunk reached SION_NOT_SUCCESS (0) otherwise

Examples: simple/sionpar.c.

Definition at line 764 of file sion_common.c.

Referenced by fsion_feof_c().

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◆ sion_flush()

int sion_flush ( int sid )

Flushed sion file.

Parameters

[in] sid sion file handle

Returns: SION_SUCCESS if ok

Definition at line 985 of file sion_common.c.

Referenced by fsion_flush_c().

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◆ sion_get_position()

sion_int64 sion_get_position ( int sid )

Function that returns the current file position.

This function returns an sion_int64 containing the current file possition.

Parameters

[in] sid sion file handle (in)

Returns: current file position

Definition at line 885 of file sion_common.c.

References _sion_vcdtovcon(), _sion_vcdtype(), and SION_FILEDESCRIPTOR.

Referenced by fsion_get_position_c().

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◆ sion_get_sizeof()

int sion_get_sizeof	(	int	sid,
		int *	numbytes,
		int *	numfds
	)

Function returns size of internal data structure for sid.

Parameters

[in]	sid	sion file handle
[out]	numbytes	number of bytes used
[out]	numfds	number of file descriptors used

Returns: SION_SUCCESS if ok

Definition at line 1078 of file sion_common.c.

◆ sion_lock_register_lock_callbacks()

int sion_lock_register_lock_callbacks	(	int	lockvoid *,
		int	unlockvoid *,
		void *	lock_data
	)

Function which registers callback funtions for lock and unlock internal access to shared data structures.

Parameters

[in]	lock()	lock function
[in]	unlock()	unlock function
[in]	lock_data()	unlock function

Returns: SION_SUCCESS okay

Definition at line 1175 of file sion_common.c.

◆ sion_lock_user_callbacks_defined()

int sion_lock_user_callbacks_defined ( void )

Function which return flag, if user callback for locking are registered.

Returns: SION_SUCCESS (yes) of SION_NOT_SUCCESS (no)

Definition at line 1194 of file sion_common.c.

◆ sion_seek()

int sion_seek	(	int	sid,
		int	rank,
		int	currentblocknr,
		sion_int64	posinblk
	)

Function to set the file pointer to a new position.

See sion_seek_description .

Parameters

[in]	sid	sion file handle
[in]	rank	rank number of the process (SION_CURRENT_RANK to select the current rank)
[in]	currentblocknr	block number (SION_CURRENT_BLK to select the current block) (SION_ABSOLUTE_POS gives an absolute position; SION_END_POS seeks relative to the end of the file)
[in]	posinblk	position in the block (SION_CURRENT_POS to select the current position)

Return values

SION_SUCCESS if file pointer can be moved to new position

Definition at line 653 of file sion_common.c.

References sion_seek_fp().

◆ sion_seek_fp()

int sion_seek_fp	(	int	sid,
		int	rank,
		int	currentblocknr,
		sion_int64	posinblk,
		FILE **	fileptr
	)

Deprecated. Use sion_seek() instead.

See sion_seek_fp_description .

Parameters

[in]	sid	sion file handle
[in]	rank	rank number of the process (SION_CURRENT_RANK to select the current rank)
[in]	currentblocknr	block number (SION_CURRENT_BLK to select the current block)
[in]	posinblk	position in the block (SION_CURRENT_POS to select the current position)
[out]	**fileptr	file pointer to corresponding file of a multi-file set

Return values

SION_SUCCESS if file pointer can be moved to new position

Definition at line 676 of file sion_common.c.

Referenced by sion_seek().

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Macros

Functions

Detailed Description

Function Documentation

◆ sion_bytes_avail_in_block()

◆ sion_bytes_avail_in_chunk()

◆ sion_dedup()

◆ sion_dup()

◆ sion_ensure_free_space()

◆ sion_feof()

◆ sion_flush()

◆ sion_get_position()

◆ sion_get_sizeof()

◆ sion_lock_register_lock_callbacks()

◆ sion_lock_user_callbacks_defined()

◆ sion_seek()

◆ sion_seek_fp()