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; 0 if media is not inserted, nonzero otherwise.
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; 0 if media is not inserted, nonzero otherwise.
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        MediaUsed       db ?
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        MediaUsed       db ?
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; 0 if media fields are not used, nonzero otherwise. If .MediaRefCount is
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; 0 if media fields are not used, nonzero otherwise. If .MediaRefCount is
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; nonzero, this field is nonzero too; however, when .MediaRefCount goes
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; nonzero, this field is nonzero too; however, when .MediaRefCount goes
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; to zero, there is some time interval during which media object is still used.
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; to zero, there is some time interval during which media object is still used.
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		align 4
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                        dw ? ; padding
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; The following fields are not valid unless either .MediaInserted is nonzero
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; The following fields are not valid unless either .MediaInserted is nonzero
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; or they are accessed from a code which has obtained the reference when
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; or they are accessed from a code which has obtained the reference when
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; .MediaInserted was nonzero.
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; .MediaInserted was nonzero.
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        MediaRefCount   dd ?
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        MediaRefCount   dd ?
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; Count of active references to the media object. One reference is kept during
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; Count of active references to the media object. One reference is kept during
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; Media is not inserted, reference counter is 1.
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; Media is not inserted, reference counter is 1.
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	lea	ecx, [esi+DISK.MediaLock]
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	lea	ecx, [esi+DISK.MediaLock]
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	call	mutex_init
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	call	mutex_init
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	xor	eax, eax
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	xor	eax, eax
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	mov	dword [esi+DISK.MediaInserted], eax
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	mov	dword [esi+DISK.MediaInserted], eax
- 
 
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        mov     [esi+DISK.MediaRefCount], eax
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	inc	eax
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	inc	eax
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	mov	[esi+DISK.RefCount], eax
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	mov	[esi+DISK.RefCount], eax
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; The DISK structure is initialized.
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; The DISK structure is initialized.
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; 5. Insert the new structure to the global list.
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; 5. Insert the new structure to the global list.
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; 5a. Acquire the mutex.
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; 5a. Acquire the mutex.