99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/*
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* Copyright (c) 2014 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _SYS_PGO_H_
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#define _SYS_PGO_H_
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#include <sys/_types.h>
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#include <sys/_types/_ssize_t.h>
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#include <stdint.h>
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#include <uuid/uuid.h>
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#define PGO_HIB (1)
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#define PGO_WAIT_FOR_UNLOAD (2)
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#define PGO_METADATA (4)
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#define PGO_RESET_ALL (8)
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#define PGO_ALL_FLAGS (PGO_HIB | PGO_WAIT_FOR_UNLOAD | PGO_METADATA | PGO_RESET_ALL)
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/**
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* This is a serialization format for metadata related to a profile data buffer.
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*
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* If metadata is present, this footer will appear at the end of the file, so
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* the last four bytes of the file will be the ASCII string "meta".
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*
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* The metadata is stored in a environment-string style buffer. The buffer
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* consists of key-value pairs, which are delimited by null bytes. Each
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* key-value pair is a string of the form "FOO=bar". Everything before the
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* first equal sign is the key, everything after is the value.
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*
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* All members are in network byte order.
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*/
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struct pgo_metadata_footer {
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/**
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* number of pairs.
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*
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* This should be htonl(n), where n is the number of key-value pairs in the
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* metadata buffer
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*/
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uint32_t number_of_pairs;
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/**
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* pointer to the metadata buffer
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*
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* This should be htonl(offset), where offset is the backwards offset from
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* the end of the file to the metadata buffer.
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*/
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uint32_t offset_to_pairs;
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/**
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* magic number
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*
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* This should be htonl(0x6d657461);
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*/
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uint32_t magic;
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};
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#ifndef KERNEL
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ssize_t grab_pgo_data(
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uuid_t *uuid,
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int flags,
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unsigned char *buffer,
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ssize_t size);
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#endif
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#ifdef XNU_KERNEL_PRIVATE
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kern_return_t do_pgo_reset_counters(void);
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#endif
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#endif
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