diff options
Diffstat (limited to 'ch.c')
| -rw-r--r-- | ch.c | 95 |
1 files changed, 51 insertions, 44 deletions
@@ -1,5 +1,5 @@ /* - * Copyright (C) 1984-2015 Mark Nudelman + * Copyright (C) 1984-2016 Mark Nudelman * * You may distribute under the terms of either the GNU General Public * License or the Less License, as specified in the README file. @@ -144,13 +144,13 @@ static int ch_addbuf(); * Get the character pointed to by the read pointer. */ int -ch_get(void) +ch_get() { - struct buf *bp; - struct bufnode *bn; - int n; - int slept; - int h; + register struct buf *bp; + register struct bufnode *bn; + register int n; + register int slept; + register int h; POSITION pos; POSITION len; @@ -378,7 +378,8 @@ ch_get(void) * a single char onto an input file descriptor. */ public void -ch_ungetchar(int c) +ch_ungetchar(c) + int c; { if (c != -1 && ch_ungotchar != -1) error("ch_ungetchar overrun", NULL_PARG); @@ -391,7 +392,7 @@ ch_ungetchar(int c) * If we haven't read all of standard input into it, do that now. */ public void -end_logfile(void) +end_logfile() { static int tried = FALSE; @@ -416,10 +417,10 @@ end_logfile(void) * Write all the existing buffered data to the log file. */ public void -sync_logfile(void) +sync_logfile() { - struct buf *bp; - struct bufnode *bn; + register struct buf *bp; + register struct bufnode *bn; int warned = FALSE; BLOCKNUM block; BLOCKNUM nblocks; @@ -453,11 +454,12 @@ sync_logfile(void) * Determine if a specific block is currently in one of the buffers. */ static int -buffered(BLOCKNUM block) +buffered(block) + BLOCKNUM block; { - struct buf *bp; - struct bufnode *bn; - int h; + register struct buf *bp; + register struct bufnode *bn; + register int h; h = BUFHASH(block); FOR_BUFS_IN_CHAIN(h, bn) @@ -474,7 +476,8 @@ buffered(BLOCKNUM block) * Return 0 if successful, non-zero if can't seek there. */ public int -ch_seek(POSITION pos) +ch_seek(pos) + register POSITION pos; { BLOCKNUM new_block; POSITION len; @@ -512,7 +515,7 @@ ch_seek(POSITION pos) * Seek to the end of the file. */ public int -ch_end_seek(void) +ch_end_seek() { POSITION len; @@ -539,10 +542,10 @@ ch_end_seek(void) * Seek to the last position in the file that is currently buffered. */ public int -ch_end_buffer_seek(void) +ch_end_buffer_seek() { - struct buf *bp; - struct bufnode *bn; + register struct buf *bp; + register struct bufnode *bn; POSITION buf_pos; POSITION end_pos; @@ -567,10 +570,10 @@ ch_end_buffer_seek(void) * beginning of the pipe is no longer buffered. */ public int -ch_beg_seek(void) +ch_beg_seek() { - struct bufnode *bn; - struct bufnode *firstbn; + register struct bufnode *bn; + register struct bufnode *firstbn; /* * Try a plain ch_seek first. @@ -599,7 +602,7 @@ ch_beg_seek(void) * Return the length of the file, if known. */ public POSITION -ch_length(void) +ch_length() { if (thisfile == NULL) return (NULL_POSITION); @@ -616,7 +619,7 @@ ch_length(void) * Return the current position in the file. */ public POSITION -ch_tell(void) +ch_tell() { if (thisfile == NULL) return (NULL_POSITION); @@ -627,9 +630,9 @@ ch_tell(void) * Get the current char and post-increment the read pointer. */ public int -ch_forw_get(void) +ch_forw_get() { - int c; + register int c; if (thisfile == NULL) return (EOI); @@ -650,7 +653,7 @@ ch_forw_get(void) * Pre-decrement the read pointer and get the new current char. */ public int -ch_back_get(void) +ch_back_get() { if (thisfile == NULL) return (EOI); @@ -673,7 +676,8 @@ ch_back_get(void) * bufspace is in units of 1024 bytes. -1 mean no limit. */ public void -ch_setbufspace(int bufspace) +ch_setbufspace(bufspace) + int bufspace; { if (bufspace < 0) maxbufs = -1; @@ -689,9 +693,9 @@ ch_setbufspace(int bufspace) * Flush (discard) any saved file state, including buffer contents. */ public void -ch_flush(void) +ch_flush() { - struct bufnode *bn; + register struct bufnode *bn; if (thisfile == NULL) return; @@ -756,10 +760,10 @@ ch_flush(void) * The buffer is added to the tail of the buffer chain. */ static int -ch_addbuf(void) +ch_addbuf() { - struct buf *bp; - struct bufnode *bn; + register struct buf *bp; + register struct bufnode *bn; /* * Allocate and initialize a new buffer and link it @@ -781,9 +785,9 @@ ch_addbuf(void) * */ static void -init_hashtbl(void) +init_hashtbl() { - int h; + register int h; for (h = 0; h < BUFHASH_SIZE; h++) { @@ -796,9 +800,9 @@ init_hashtbl(void) * Delete all buffers for this file. */ static void -ch_delbufs(void) +ch_delbufs() { - struct bufnode *bn; + register struct bufnode *bn; while (ch_bufhead != END_OF_CHAIN) { @@ -814,7 +818,8 @@ ch_delbufs(void) * Is it possible to seek on a file descriptor? */ public int -seekable(int f) +seekable(f) + int f; { #if MSDOS_COMPILER extern int fd0; @@ -835,7 +840,7 @@ seekable(int f) * This is used after an ignore_eof read, during which the EOF may change. */ public void -ch_set_eof(void) +ch_set_eof() { ch_fsize = ch_fpos; } @@ -845,7 +850,9 @@ ch_set_eof(void) * Initialize file state for a new file. */ public void -ch_init(int f, int flags) +ch_init(f, flags) + int f; + int flags; { /* * See if we already have a filestate for this file. @@ -884,7 +891,7 @@ ch_init(int f, int flags) * Close a filestate. */ public void -ch_close(void) +ch_close() { int keepstate = FALSE; @@ -927,7 +934,7 @@ ch_close(void) * Return ch_flags for the current file. */ public int -ch_getflags(void) +ch_getflags() { if (thisfile == NULL) return (0); |