haiku/headers/private/disk_scanner/session.h

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// session.h
#ifndef _PARTSCAN_SESSION_H
#define _PARTSCAN_SESSION_H
#include <module.h>
struct session_info;
typedef bool (*session_identify_hook)(int deviceFD, off_t deviceSize,
int32 blockSize);
typedef status_t (*session_get_nth_info_hook)(int deviceFD, int32 index,
off_t deviceSize, int32 blockSize, struct session_info *sessionInfo);
typedef struct session_module_info {
module_info module;
session_identify_hook identify;
session_get_nth_info_hook get_nth_info;
} session_module_info;
/*
identify():
----------
Checks whether the module knows about sessions on the given device.
Returns true, if it does, false otherwise.
params:
deviceFD: a device FD
deviceSize: size of the device in bytes
blockSize: the logical block size
get_nth_info():
--------------
Fills in all fields of sessionInfo with information about
the indexth session on the specified device.
params:
deviceFD: a device FD
index: the session index
deviceSize: size of the device in bytes
blockSize: the logical block size
sessionInfo: the session info
The functions is only called, when a call to identify() returned
true.
Returns B_OK, if successful, B_ENTRY_NOT_FOUND, if the index is out of
range.
*/
#endif // _PARTSCAN_SESSION_H