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Lines Matching defs:ifile

1 /*	$NetBSD: ifile.c,v 1.5 2023/10/06 05:49:49 simonb Exp $	*/
14  * An IFILE represents an input file.
16  * It is actually a pointer to an ifile structure,
18  * Ifile structures are kept in a linked list in the order they 
26 extern IFILE    curr_ifile;
28 struct ifile {
29 	struct ifile *h_next;           /* Links for command line list */
30 	struct ifile *h_prev;
36 	char h_opened;                  /* Has this ifile been opened? */
43  * Convert an IFILE (external representation)
46 #define int_ifile(h)    ((struct ifile *)(h))
47 #define ext_ifile(h)    ((IFILE)(h))
52 static struct ifile anchor = { &anchor, &anchor, NULL, NULL, NULL, 0, 0, '\0',
56 static void incr_index(struct ifile *p, int incr)
63  * Link an ifile into the ifile list.
65 static void link_ifile(struct ifile *p, struct ifile *prev)
86  * Unlink an ifile from the ifile list.
88 static void unlink_ifile(struct ifile *p)
97  * Allocate a new ifile structure and stick a filename in it.
100  * Return a pointer to the new ifile structure.
102 static struct ifile * new_ifile(char *filename, struct ifile *prev)
104 	struct ifile *p;
109 	p = (struct ifile *) ecalloc(1, sizeof(struct ifile));
129  * Delete an existing ifile structure.
131 public void del_ifile(IFILE h)
133 	struct ifile *p;
138 	 * If the ifile we're deleting is the currently open ifile,
152  * Get the ifile after a given one in the list.
154 public IFILE next_ifile(IFILE h)
156 	struct ifile *p;
165  * Get the ifile before a given one in the list.
167 public IFILE prev_ifile(IFILE h)
169 	struct ifile *p;
178  * Return a different ifile from the given one.
180 public IFILE getoff_ifile(IFILE ifile)
182 	IFILE newifile;
184 	if ((newifile = prev_ifile(ifile)) != NULL_IFILE)
186 	if ((newifile = next_ifile(ifile)) != NULL_IFILE)
200  * Find an ifile structure, given a filename.
202 static struct ifile * find_ifile(char *filename)
204 	struct ifile *p;
230  * Get the ifile associated with a filename.
232  * insert the new ifile after "prev" in the list.
234 public IFILE get_ifile(char *filename, IFILE prev)
236 	struct ifile *p;
244  * Get the display filename associated with a ifile.
246 public char * get_filename(IFILE ifile)
248 	if (ifile == NULL)
250 	return (int_ifile(ifile)->h_filename);
254  * Get the canonical filename associated with a ifile.
256 public char * get_real_filename(IFILE ifile)
258 	if (ifile == NULL)
260 	return (int_ifile(ifile)->h_rfilename);
264  * Get the index of the file associated with a ifile.
266 public int get_index(IFILE ifile)
268 	return (int_ifile(ifile)->h_index); 
274 public void store_pos(IFILE ifile, struct scrpos *scrpos)
276 	int_ifile(ifile)->h_scrpos = *scrpos;
283 public void get_pos(IFILE ifile, struct scrpos *scrpos)
285 	*scrpos = int_ifile(ifile)->h_scrpos;
289  * Mark the ifile as "opened".
291 public void set_open(IFILE ifile)
293 	int_ifile(ifile)->h_opened = 1;
297  * Return whether the ifile has been opened previously.
299 public int opened(IFILE ifile)
301 	return (int_ifile(ifile)->h_opened);
304 public void hold_ifile(IFILE ifile, int incr)
306 	int_ifile(ifile)->h_hold += incr;
309 public int held_ifile(IFILE ifile)
311 	return (int_ifile(ifile)->h_hold);
314 public void * get_filestate(IFILE ifile)
316 	return (int_ifile(ifile)->h_filestate);
319 public void set_filestate(IFILE ifile, void *filestate)
321 	int_ifile(ifile)->h_filestate = filestate;
324 public void set_altpipe(IFILE ifile, void *p)
326 	int_ifile(ifile)->h_altpipe = p;
329 public void *get_altpipe(IFILE ifile)
331 	return (int_ifile(ifile)->h_altpipe);
334 public void set_altfilename(IFILE ifile, char *altfilename)
336 	struct ifile *p = int_ifile(ifile);
342 public char * get_altfilename(IFILE ifile)
344 	return (int_ifile(ifile)->h_altfilename);
350 	struct ifile *p;