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Diffstat (limited to 'contrib/isc-dhcp/includes/omapip/buffer.h')
| -rw-r--r-- | contrib/isc-dhcp/includes/omapip/buffer.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/contrib/isc-dhcp/includes/omapip/buffer.h b/contrib/isc-dhcp/includes/omapip/buffer.h deleted file mode 100644 index cc6b6a9..0000000 --- a/contrib/isc-dhcp/includes/omapip/buffer.h +++ /dev/null @@ -1,83 +0,0 @@ -/* buffer.h - - Definitions for the object management API protocol buffering... */ - -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * Copyright (c) 1996-2003 by Internet Software Consortium - * - * 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 ISC DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF 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. - * - * Internet Systems Consortium, Inc. - * 950 Charter Street - * Redwood City, CA 94063 - * <info@isc.org> - * http://www.isc.org/ - * - * This software has been written for Internet Systems Consortium - * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc. - * To learn more about Internet Systems Consortium, see - * ``http://www.isc.org/''. To learn more about Vixie Enterprises, - * see ``http://www.vix.com''. To learn more about Nominum, Inc., see - * ``http://www.nominum.com''. - */ - -/* OMAPI buffers are ring buffers, which means that the beginning of the - buffer and the end of the buffer chase each other around. As long as - the tail never catches up to the head, there's room in the buffer for - data. - - - If the tail and the head are equal, the buffer is empty. - - - If the tail is less than the head, the contents of the buffer - are the bytes from the head to the end of buffer, and in addition, - the bytes between the beginning of the buffer and the tail, not - including the byte addressed by the tail. - - - If the tail is greater than the head, then the buffer contains - valid bytes starting with the byte addressed by the head, and - ending with the byte before the byte addressed by the tail. - - There will always be at least one byte of waste, because the tail can't - increase so that it's equal to the head (that would represent an empty - buffer. */ -#define OMAPI_BUF_SIZE 4048 -typedef struct _omapi_buffer { - struct _omapi_buffer *next; /* Buffers can be chained. */ - u_int32_t refcnt; /* Buffers are reference counted. */ - u_int16_t head, tail; /* Buffers are organized in a ring. */ - char buf [OMAPI_BUF_SIZE]; /* The actual buffer is included in - the buffer data structure. */ -} omapi_buffer_t; - -#define BUFFER_BYTES_FREE(x) \ - ((x) -> tail > (x) -> head \ - ? sizeof ((x) -> buf) - ((x) -> tail - (x) -> head) \ - : (x) -> head - (x) -> tail) - -#define BYTES_IN_BUFFER(x) \ - ((x) -> tail > (x) -> head \ - ? (x) -> tail - (x) -> head - 1 \ - : sizeof ((x) -> buf) - ((x) -> head - (x) -> tail) - 1) - -isc_result_t omapi_connection_require (omapi_object_t *, unsigned); -isc_result_t omapi_connection_copyout (unsigned char *, - omapi_object_t *, unsigned); -isc_result_t omapi_connection_copyin (omapi_object_t *, - const unsigned char *, unsigned); -isc_result_t omapi_connection_flush (omapi_object_t *); -isc_result_t omapi_connection_get_uint32 (omapi_object_t *, u_int32_t *); -isc_result_t omapi_connection_put_uint32 (omapi_object_t *, u_int32_t); -isc_result_t omapi_connection_get_uint16 (omapi_object_t *, u_int16_t *); -isc_result_t omapi_connection_put_uint16 (omapi_object_t *, u_int32_t); - |
