63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
//----------------------------------------------------------------------
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// This software is part of the OpenBeOS distribution and is covered
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// by the OpenBeOS license.
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//---------------------------------------------------------------------
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/*!
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\file session.h
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hook function declarations for disk_scanner session modules
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*/
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#ifndef _PARTSCAN_SESSION_H
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#define _PARTSCAN_SESSION_H
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#include <module.h>
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struct session_info;
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typedef bool (*session_identify_hook)(int deviceFD, off_t deviceSize,
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int32 blockSize);
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typedef status_t (*session_get_nth_info_hook)(int deviceFD, int32 index,
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off_t deviceSize, int32 blockSize, struct session_info *sessionInfo);
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typedef struct session_module_info {
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module_info module;
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session_identify_hook identify;
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session_get_nth_info_hook get_nth_info;
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} session_module_info;
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/*
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identify():
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----------
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Checks whether the module knows about sessions on the given device.
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Returns true, if it does, false otherwise.
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params:
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deviceFD: a device FD
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deviceSize: size of the device in bytes
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blockSize: the logical block size
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get_nth_info():
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--------------
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Fills in all fields of sessionInfo with information about
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the indexth session on the specified device.
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params:
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deviceFD: a device FD
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index: the session index
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deviceSize: size of the device in bytes
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blockSize: the logical block size
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sessionInfo: the session info
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The functions is only called, when a call to identify() returned
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true.
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Returns B_OK, if successful, B_ENTRY_NOT_FOUND, if the index is out of
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range.
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*/
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#endif // _PARTSCAN_SESSION_H
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