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Big internal reorganisation to move tty control into parent.

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This commit is contained in:
Nicholas Marriott
2007-11-27 19:23:34 +00:00
parent 97eca99d0b
commit 76c8a590db
30 changed files with 1577 additions and 1922 deletions
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43
buffer.c
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@ -1,4 +1,4 @@
/* $Id: buffer.c,v 1.2 2007-07-25 23:13:18 nicm Exp $ */
/* $Id: buffer.c,v 1.3 2007-11-27 19:23:33 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -179,3 +179,44 @@ buffer_read(struct buffer *b, void *data, size_t size)
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;
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)
{
uint8_t n;
n = BUFFER_OUT(b)[0];
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);
}