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#ifndef NVIM_MEMLINE_DEFS_H
#define NVIM_MEMLINE_DEFS_H
#include "nvim/memfile_defs.h"
/*
* When searching for a specific line, we remember what blocks in the tree
* are the branches leading to that block. This is stored in ml_stack. Each
* entry is a pointer to info in a block (may be data block or pointer block)
*/
typedef struct info_pointer {
blocknr_T ip_bnum; /* block number */
linenr_T ip_low; /* lowest lnum in this block */
linenr_T ip_high; /* highest lnum in this block */
int ip_index; /* index for block with current lnum */
} infoptr_T; /* block/index pair */
typedef struct ml_chunksize {
int mlcs_numlines;
long mlcs_totalsize;
} chunksize_T;
/* Flags when calling ml_updatechunk() */
#define ML_CHNK_ADDLINE 1
#define ML_CHNK_DELLINE 2
#define ML_CHNK_UPDLINE 3
/*
* the memline structure holds all the information about a memline
*/
typedef struct memline {
linenr_T ml_line_count; /* number of lines in the buffer */
memfile_T *ml_mfp; /* pointer to associated memfile */
#define ML_EMPTY 1 /* empty buffer */
#define ML_LINE_DIRTY 2 /* cached line was changed and allocated */
#define ML_LOCKED_DIRTY 4 /* ml_locked was changed */
#define ML_LOCKED_POS 8 /* ml_locked needs positive block number */
int ml_flags;
infoptr_T *ml_stack; /* stack of pointer blocks (array of IPTRs) */
int ml_stack_top; /* current top of ml_stack */
int ml_stack_size; /* total number of entries in ml_stack */
linenr_T ml_line_lnum; /* line number of cached line, 0 if not valid */
char_u *ml_line_ptr; /* pointer to cached line */
bhdr_T *ml_locked; /* block used by last ml_get */
linenr_T ml_locked_low; /* first line in ml_locked */
linenr_T ml_locked_high; /* last line in ml_locked */
int ml_locked_lineadd; /* number of lines inserted in ml_locked */
chunksize_T *ml_chunksize;
int ml_numchunks;
int ml_usedchunks;
} memline_T;
#endif // NVIM_MEMLINE_DEFS_H
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