SIONlib  1.7.1
Scalable I/O library for parallel access to task-local files
sion_internal_seek.h
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1 /****************************************************************************
2 ** SIONLIB http://www.fz-juelich.de/jsc/sionlib **
3 *****************************************************************************
4 ** Copyright (c) 2008-2016 **
5 ** Forschungszentrum Juelich, Juelich Supercomputing Centre **
6 ** **
7 ** See the file COPYRIGHT in the package base directory for details **
8 ****************************************************************************/
9 
14 #ifndef SION_SION_SEEK_H
15 #define SION_SION_SEEK_H
16 
17 
18 int _sion_seek_on_all_ranks_read( _sion_filedesc *sion_filedesc,
19  int rank,
20  int blocknr,
21  sion_int64 posinblk );
22 
23 int _sion_seek_on_all_ranks_read_master( _sion_filedesc *sion_filedesc,
24  int rank,
25  int blocknr,
26  sion_int64 posinblk );
27 
28 int _sion_seek_on_current_rank_read( _sion_filedesc *sion_filedesc,
29  int rank,
30  int blocknr,
31  sion_int64 posinblk );
32 
33 int _sion_seek_on_all_ranks_read_mapped(_sion_filedesc *sion_filedesc,
34  int rank,
35  int blocknr,
36  sion_int64 posinblk);
37 
38 int _sion_seek_on_all_ranks_write( _sion_filedesc *sion_filedesc,
39  int rank,
40  int blocknr,
41  sion_int64 posinblk );
42 
43 int _sion_seek_on_current_rank_write( _sion_filedesc *sion_filedesc,
44  int rank,
45  int blocknr,
46  sion_int64 posinblk );
47 
48 int _sion_seek_on_all_ranks_write_mapped(_sion_filedesc *sion_filedesc,
49  int rank,
50  int blocknr,
51  sion_int64 posinblk);
52 
53 int _sion_seek_search_abs_pos( _sion_filedesc *sion_filedesc,
54  sion_int64 abspos,
55  int *newblocknr,
56  sion_int64 *newposinblk );
57 
58 int _sion_seek_search_end_pos(_sion_filedesc* sion_filedesc,
59  sion_int64 posend,
60  int* newblocknr,
61  sion_int64* newposinblk);
62 #endif
_sion_seek_on_all_ranks_write_mapped
int _sion_seek_on_all_ranks_write_mapped(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position, updates internal data structure.
Definition: sion_internal_seek.c:627
_sion_seek_search_abs_pos
int _sion_seek_search_abs_pos(_sion_filedesc *sion_filedesc, sion_int64 abspos, int *newblocknr, sion_int64 *newposinblk)
Find block and position inside block for absolute position abspos.
Definition: sion_internal_seek.c:822
_sion_filedesc_struct
Sion File Descriptor Structure.
Definition: sion_filedesc.h:77
_sion_seek_on_all_ranks_read
int _sion_seek_on_all_ranks_read(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position, updates internal data structure.
Definition: sion_internal_seek.c:50
_sion_seek_on_all_ranks_read_master
int _sion_seek_on_all_ranks_read_master(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position, updates internal data structure.
Definition: sion_internal_seek.c:158
_sion_seek_search_end_pos
int _sion_seek_search_end_pos(_sion_filedesc *sion_filedesc, sion_int64 posend, int *newblocknr, sion_int64 *newposinblk)
Find block and position inside block position relative to end.
Definition: sion_internal_seek.c:862
_sion_seek_on_current_rank_write
int _sion_seek_on_current_rank_write(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position in the same rank, updates internal data structure.
Definition: sion_internal_seek.c:764
_sion_seek_on_all_ranks_write
int _sion_seek_on_all_ranks_write(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position, updates internal data structure.
Definition: sion_internal_seek.c:535
_sion_seek_on_all_ranks_read_mapped
int _sion_seek_on_all_ranks_read_mapped(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position, updates internal data structure.
Definition: sion_internal_seek.c:387
_sion_seek_on_current_rank_read
int _sion_seek_on_current_rank_read(_sion_filedesc *sion_filedesc, int rank, int blocknr, sion_int64 posinblk)
Function to set the file pointer to a new position in the same rank, updates internal data structure.
Definition: sion_internal_seek.c:271
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