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Sync OpenBSD patchset 499: 

Bye-bye buffer*.c.
pull/1/head
Tiago Cunha 2009-11-08 23:05:36 +00:00
parent 2df0882722
commit 142962742c
3 changed files with 1 additions and 222 deletions
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53
buffer-poll.c
View File

@ -1,53 +0,0 @@
/* $Id: buffer-poll.c,v 1.19 2009-11-08 22:40:36 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <errno.h>
#include <event.h>
#include <unistd.h>
#include "tmux.h"
/* Fill buffers from socket based on poll results. */
int
buffer_poll(int fd, int events, struct buffer *in, struct buffer *out)
{
ssize_t n;
if (in != NULL && events & EV_READ) {
buffer_ensure(in, BUFSIZ);
n = read(fd, BUFFER_IN(in), BUFFER_FREE(in));
if (n == 0)
return (-1);
if (n == -1) {
if (errno != EINTR && errno != EAGAIN)
return (-1);
} else
buffer_add(in, n);
}
if (out != NULL && BUFFER_USED(out) > 0 && events & EV_WRITE) {
n = write(fd, BUFFER_OUT(out), BUFFER_USED(out));
if (n == -1) {
if (errno != EINTR && errno != EAGAIN)
return (-1);
} else
buffer_remove(out, n);
}
return (0);
}

139
buffer.c
View File

@ -1,139 +0,0 @@
/* $Id: buffer.c,v 1.8 2009-08-21 21:09:13 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
/* Create a buffer. */
struct buffer *
buffer_create(size_t size)
{
struct buffer *b;
if (size == 0)
fatalx("zero size");
b = xcalloc(1, sizeof *b);
b->base = xmalloc(size);
b->space = size;
return (b);
}
/* Destroy a buffer. */
void
buffer_destroy(struct buffer *b)
{
xfree(b->base);
xfree(b);
}
/* Ensure free space for size in buffer. */
void
buffer_ensure(struct buffer *b, size_t size)
{
if (size == 0)
fatalx("zero size");
if (BUFFER_FREE(b) >= size)
return;
if (b->off > 0) {
if (b->size > 0)
memmove(b->base, b->base + b->off, b->size);
b->off = 0;
}
if (SIZE_MAX - b->size < size)
fatalx("size too big");
while (b->space < b->size + size) {
b->base = xrealloc(b->base, 2, b->space);
b->space *= 2;
}
}
/* Adjust buffer after data appended. */
void
buffer_add(struct buffer *b, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->space - b->size)
fatalx("overflow");
b->size += size;
}
/* Adjust buffer after data removed. */
void
buffer_remove(struct buffer *b, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->size)
fatalx("underflow");
b->size -= size;
b->off += size;
}
/* Copy data into a buffer. */
void
buffer_write(struct buffer *b, const void *data, size_t size)
{
buffer_ensure(b, size);
memcpy(BUFFER_IN(b), data, size);
buffer_add(b, size);
}
/* Copy data out of a buffer. */
void
buffer_read(struct buffer *b, void *data, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->size)
fatalx("underflow");
memcpy(data, BUFFER_OUT(b), size);
buffer_remove(b, size);
}
/* Store an 8-bit value. */
void
buffer_write8(struct buffer *b, uint8_t n)
{
buffer_ensure(b, 1);
BUFFER_IN(b)[0] = n;
b->size++;
}
/* Extract an 8-bit value. */
uint8_t
buffer_read8(struct buffer *b)
{
uint8_t n;
n = BUFFER_OUT(b)[0];
buffer_remove(b, 1);
return (n);
}

31
tmux.h
View File

@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.501 2009-11-08 23:02:56 tcunha Exp $ */
/* $Id: tmux.h,v 1.502 2009-11-08 23:05:36 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -95,21 +95,6 @@ extern char **environ;
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
#endif
/* Buffer macros. */
#define BUFFER_USED(b) ((b)->size)
#define BUFFER_FREE(b) ((b)->space - (b)->off - (b)->size)
#define BUFFER_IN(b) ((b)->base + (b)->off + (b)->size)
#define BUFFER_OUT(b) ((b)->base + (b)->off)
/* Buffer structure. */
struct buffer {
u_char *base; /* buffer start */
size_t space; /* total size of buffer */
size_t size; /* size of data in buffer */
size_t off; /* offset of data in buffer */
};
/* Bell option values. */
#define BELL_NONE 0
#define BELL_ANY 1
@ -1907,20 +1892,6 @@ int utf8_append(struct utf8_data *, u_char);
/* osdep-*.c */
char *osdep_get_name(int, char *);
/* buffer.c */
struct buffer *buffer_create(size_t);
void buffer_destroy(struct buffer *);
void buffer_ensure(struct buffer *, size_t);
void buffer_add(struct buffer *, size_t);
void buffer_remove(struct buffer *, size_t);
void buffer_write(struct buffer *, const void *, size_t);
void buffer_read(struct buffer *, void *, size_t);
void buffer_write8(struct buffer *, uint8_t);
uint8_t buffer_read8(struct buffer *);
/* buffer-poll.c */
int buffer_poll(int, int, struct buffer *, struct buffer *);
/* log.c */
void log_open_tty(int);
void log_open_file(int, const char *);