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Nuke unused buffer functions. Found by lint.

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Also remove some old debug output which was #if 0.
This commit is contained in:
Nicholas Marriott
2009-06-25 06:05:47 +00:00
parent 9144d30848
commit ed8350422e
3 changed files with 0 additions and 138 deletions
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43
buffer-poll.c
View File

@@ -23,37 +23,17 @@
#include "tmux.h"
/* Set up pollfd for buffers. */
void
buffer_set(
struct pollfd *pfd, int fd, unused struct buffer *in, struct buffer *out)
{
pfd->fd = fd;
pfd->events = POLLIN;
if (BUFFER_USED(out) > 0)
pfd->events |= POLLOUT;
}
/* Fill buffers from socket based on poll results. */
int
buffer_poll(struct pollfd *pfd, struct buffer *in, struct buffer *out)
{
ssize_t n;
#if 0
log_debug("buffer_poll (%ld): fd=%d, revents=%d; out=%zu in=%zu",
(long) getpid(),
pfd->fd, pfd->revents, BUFFER_USED(out), BUFFER_USED(in));
#endif
if (pfd->revents & (POLLERR|POLLNVAL|POLLHUP))
return (-1);
if (pfd->revents & POLLIN) {
buffer_ensure(in, BUFSIZ);
n = read(pfd->fd, BUFFER_IN(in), BUFFER_FREE(in));
#if 0
log_debug("buffer_poll: fd=%d, read=%zd", pfd->fd, n);
#endif
if (n == 0)
return (-1);
if (n == -1) {
@@ -64,9 +44,6 @@ buffer_poll(struct pollfd *pfd, struct buffer *in, struct buffer *out)
}
if (BUFFER_USED(out) > 0 && pfd->revents & POLLOUT) {
n = write(pfd->fd, BUFFER_OUT(out), BUFFER_USED(out));
#if 0
log_debug("buffer_poll: fd=%d, write=%zd", pfd->fd, n);
#endif
if (n == -1) {
if (errno != EINTR && errno != EAGAIN)
return (-1);
@@ -75,23 +52,3 @@ buffer_poll(struct pollfd *pfd, struct buffer *in, struct buffer *out)
}
return (0);
}
/* Flush buffer output to socket. */
void
buffer_flush(int fd, struct buffer *in, struct buffer *out)
{
struct pollfd pfd;
while (BUFFER_USED(out) > 0) {
buffer_set(&pfd, fd, in, out);
if (poll(&pfd, 1, INFTIM) == -1) {
if (errno == EAGAIN || errno == EINTR)
continue;
fatal("poll failed");
}
if (buffer_poll(&pfd, in, out) != 0)
break;
}
}

85
buffer.c
View File

@@ -47,14 +47,6 @@ buffer_destroy(struct buffer *b)
xfree(b);
}
/* Empty a buffer. */
void
buffer_clear(struct buffer *b)
{
b->size = 0;
b->off = 0;
}
/* Ensure free space for size in buffer. */
void
buffer_ensure(struct buffer *b, size_t size)
@@ -91,18 +83,6 @@ buffer_add(struct buffer *b, size_t size)
b->size += size;
}
/* Reverse buffer add. */
void
buffer_reverse_add(struct buffer *b, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->size)
fatalx("underflow");
b->size -= size;
}
/* Adjust buffer after data removed. */
void
buffer_remove(struct buffer *b, size_t size)
@@ -116,50 +96,6 @@ buffer_remove(struct buffer *b, size_t size)
b->off += size;
}
/* Reverse buffer remove. */
void
buffer_reverse_remove(struct buffer *b, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->off)
fatalx("overflow");
b->size += size;
b->off -= size;
}
/* Insert a section into the buffer. */
void
buffer_insert_range(struct buffer *b, size_t base, size_t size)
{
if (size == 0)
fatalx("zero size");
if (base > b->size)
fatalx("range outside buffer");
buffer_ensure(b, size);
memmove(b->base + b->off + base + size,
b->base + b->off + base, b->size - base);
b->size += size;
}
/* Delete a section from the buffer. */
void
buffer_delete_range(struct buffer *b, size_t base, size_t size)
{
if (size == 0)
fatalx("zero size");
if (size > b->size)
fatalx("size too big");
if (base + size > b->size)
fatalx("range outside buffer");
memmove(b->base + b->off + base,
b->base + b->off + base + size, b->size - base - size);
b->size -= size;
}
/* Copy data into a buffer. */
void
buffer_write(struct buffer *b, const void *data, size_t size)
@@ -194,16 +130,6 @@ buffer_write8(struct buffer *b, uint8_t n)
buffer_add(b, 1);
}
/* Store a 16-bit value. */
void
buffer_write16(struct buffer *b, uint16_t n)
{
buffer_ensure(b, 2);
BUFFER_IN(b)[0] = n & 0xff;
BUFFER_IN(b)[1] = n >> 8;
buffer_add(b, 2);
}
/* Extract an 8-bit value. */
uint8_t
buffer_read8(struct buffer *b)
@@ -214,14 +140,3 @@ buffer_read8(struct buffer *b)
buffer_remove(b, 1);
return (n);
}
/* Extract a 16-bit value. */
uint16_t
buffer_read16(struct buffer *b)
{
uint16_t n;
n = BUFFER_OUT(b)[0] | (BUFFER_OUT(b)[1] << 8);
buffer_remove(b, 2);
return (n);
}

10
tmux.h
View File

@@ -1533,26 +1533,16 @@ char *get_proc_name(int, char *);
/* buffer.c */
struct buffer *buffer_create(size_t);
void buffer_destroy(struct buffer *);
void buffer_clear(struct buffer *);
void buffer_ensure(struct buffer *, size_t);
void buffer_add(struct buffer *, size_t);
void buffer_reverse_add(struct buffer *, size_t);
void buffer_remove(struct buffer *, size_t);
void buffer_reverse_remove(struct buffer *, size_t);
void buffer_insert_range(struct buffer *, size_t, size_t);
void buffer_delete_range(struct buffer *, size_t, 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);
void buffer_write16(struct buffer *, uint16_t);
uint8_t buffer_read8(struct buffer *);
uint16_t buffer_read16(struct buffer *);
/* buffer-poll.c */
void buffer_set(
struct pollfd *, int, struct buffer *, struct buffer *);
int buffer_poll(struct pollfd *, struct buffer *, struct buffer *);
void buffer_flush(int, struct buffer *n, struct buffer *);
/* log.c */
#define LOG_FACILITY LOG_DAEMON