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/* file_rd.h
*
* data structures and routines for reading/writing binary
* record-oriented files. */
struct file_list {
char *name;
struct file_list *next;
};
struct file_rd_info {
struct file_list *the_files;
FILE *fp; /* current file pointer */
char *name; /* current file name -- we need this
because we close files as soon as
we find their ends and free their
entries from the linked list */
int recs_read; /* how many records are in our buffer? */
int recs_left; /* how many records are left in the
buffer to be used? */
void *buffer; /* the buffer for the data */
int buffered_records; /* how many records to buffer */
int record_size; /* how big is each record? */
int backwards; /* non-zero if we're reading backwards */
long rec_number; /* record number in the currently open
file, for error-reporting purposes */
};
struct file_rd_info *file_reader_init PARAMS((int record_size,
int buffered_records,
int backwards));
void file_reader_add_file PARAMS((struct file_rd_info *fri, char *name));
char *file_reader_get_entry PARAMS((struct file_rd_info *fri));
void file_reader_print_file_and_line PARAMS((FILE *out,
struct file_rd_info *fri));
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