mirror of https://github.com/tmux/tmux.git
Bye-bye buffer*.c.
Nicholas Marriott
parent
a02c7e804c
commit
5bebbd81d7
4
Makefile
4
Makefile
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@ -1,8 +1,8 @@
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# $OpenBSD$
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PROG= tmux
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SRCS= attributes.c buffer-poll.c buffer.c cfg.c \
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client.c clock.c cmd-attach-session.c cmd-bind-key.c \
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SRCS= attributes.c cfg.c client.c clock.c \
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cmd-attach-session.c cmd-bind-key.c \
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cmd-break-pane.c cmd-choose-session.c cmd-choose-window.c \
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cmd-clear-history.c cmd-clock-mode.c cmd-command-prompt.c \
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cmd-confirm-before.c cmd-copy-buffer.c cmd-copy-mode.c \
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@ -1,53 +0,0 @@
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/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <event.h>
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#include <unistd.h>
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#include "tmux.h"
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/* Fill buffers from socket based on poll results. */
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int
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buffer_poll(int fd, int events, struct buffer *in, struct buffer *out)
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{
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ssize_t n;
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if (in != NULL && events & EV_READ) {
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buffer_ensure(in, BUFSIZ);
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n = read(fd, BUFFER_IN(in), BUFFER_FREE(in));
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if (n == 0)
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return (-1);
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if (n == -1) {
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if (errno != EINTR && errno != EAGAIN)
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return (-1);
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} else
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buffer_add(in, n);
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}
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if (out != NULL && BUFFER_USED(out) > 0 && events & EV_WRITE) {
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n = write(fd, BUFFER_OUT(out), BUFFER_USED(out));
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if (n == -1) {
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if (errno != EINTR && errno != EAGAIN)
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return (-1);
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} else
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buffer_remove(out, n);
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}
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return (0);
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}
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139
buffer.c
139
buffer.c
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@ -1,139 +0,0 @@
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/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include "tmux.h"
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/* Create a buffer. */
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struct buffer *
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buffer_create(size_t size)
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{
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struct buffer *b;
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if (size == 0)
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fatalx("zero size");
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b = xcalloc(1, sizeof *b);
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b->base = xmalloc(size);
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b->space = size;
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return (b);
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}
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/* Destroy a buffer. */
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void
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buffer_destroy(struct buffer *b)
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{
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xfree(b->base);
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xfree(b);
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}
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/* Ensure free space for size in buffer. */
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void
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buffer_ensure(struct buffer *b, size_t size)
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{
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if (size == 0)
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fatalx("zero size");
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if (BUFFER_FREE(b) >= size)
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return;
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if (b->off > 0) {
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if (b->size > 0)
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memmove(b->base, b->base + b->off, b->size);
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b->off = 0;
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}
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if (SIZE_MAX - b->size < size)
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fatalx("size too big");
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while (b->space < b->size + size) {
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b->base = xrealloc(b->base, 2, b->space);
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b->space *= 2;
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}
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}
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/* Adjust buffer after data appended. */
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void
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buffer_add(struct buffer *b, size_t size)
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{
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if (size == 0)
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fatalx("zero size");
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if (size > b->space - b->size)
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fatalx("overflow");
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b->size += size;
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}
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/* Adjust buffer after data removed. */
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void
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buffer_remove(struct buffer *b, size_t size)
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{
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if (size == 0)
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fatalx("zero size");
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if (size > b->size)
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fatalx("underflow");
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b->size -= size;
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b->off += size;
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}
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/* Copy data into a buffer. */
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void
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buffer_write(struct buffer *b, const void *data, size_t size)
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{
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buffer_ensure(b, size);
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memcpy(BUFFER_IN(b), data, size);
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buffer_add(b, size);
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}
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/* Copy data out of a buffer. */
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void
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buffer_read(struct buffer *b, void *data, size_t size)
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{
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if (size == 0)
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fatalx("zero size");
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if (size > b->size)
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fatalx("underflow");
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memcpy(data, BUFFER_OUT(b), size);
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buffer_remove(b, size);
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}
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/* Store an 8-bit value. */
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void
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buffer_write8(struct buffer *b, uint8_t n)
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{
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buffer_ensure(b, 1);
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BUFFER_IN(b)[0] = n;
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b->size++;
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}
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/* Extract an 8-bit value. */
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uint8_t
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buffer_read8(struct buffer *b)
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{
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uint8_t n;
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n = BUFFER_OUT(b)[0];
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buffer_remove(b, 1);
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return (n);
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}
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29
tmux.h
29
tmux.h
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@ -96,21 +96,6 @@ extern char **environ;
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#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
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#endif
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/* Buffer macros. */
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#define BUFFER_USED(b) ((b)->size)
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#define BUFFER_FREE(b) ((b)->space - (b)->off - (b)->size)
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#define BUFFER_IN(b) ((b)->base + (b)->off + (b)->size)
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#define BUFFER_OUT(b) ((b)->base + (b)->off)
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/* Buffer structure. */
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struct buffer {
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u_char *base; /* buffer start */
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size_t space; /* total size of buffer */
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size_t size; /* size of data in buffer */
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size_t off; /* offset of data in buffer */
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};
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/* Bell option values. */
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#define BELL_NONE 0
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#define BELL_ANY 1
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@ -1908,20 +1893,6 @@ int utf8_append(struct utf8_data *, u_char);
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/* procname.c */
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char *get_proc_name(int, char *);
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/* buffer.c */
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struct buffer *buffer_create(size_t);
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void buffer_destroy(struct buffer *);
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void buffer_ensure(struct buffer *, size_t);
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void buffer_add(struct buffer *, size_t);
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void buffer_remove(struct buffer *, size_t);
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void buffer_write(struct buffer *, const void *, size_t);
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void buffer_read(struct buffer *, void *, size_t);
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void buffer_write8(struct buffer *, uint8_t);
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uint8_t buffer_read8(struct buffer *);
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/* buffer-poll.c */
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int buffer_poll(int, int, struct buffer *, struct buffer *);
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/* log.c */
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void log_open_tty(int);
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void log_open_file(int, const char *);
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