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; It is called several times, first time with eax=0

; It is called several times, first time with eax=0

; in: eax = 0 for first call, previously returned value for subsequent calls

; in: eax = 0 for first call, previously returned value for subsequent calls

; out: eax = 0 => no more items

; out: eax = 0 => no more items

;      eax != 0 => buffer pointed to by edi contains name of item

;      eax != 0 => buffer pointed to by edi contains name of item

dyndisk_enum_root:

dyndisk_enum_root:

        mov     ecx, disk_list_mutex    ; it will be useful

        mov     ecx, disk_list_mutex    ; it will be useful

; 1. If this is the first call, acquire the mutex and initialize.

; 1. If this is the first call, acquire the mutex and initialize.

        test    eax, eax

        test    eax, eax

        jnz     .notfirst

        jnz     .notfirst

        call    mutex_lock

        call    mutex_lock

        stosb

        stosb

        test    al, al

        test    al, al

        jnz     @b

        jnz     @b

        pop     esi eax

        pop     esi eax

; 5. Return with eax = item.

; 5. Return with eax = item.

        ret

        ret

.last:

.last:

; 6. Release the mutex and return with eax = 0.

; 6. Release the mutex and return with eax = 0.

        call    mutex_unlock

        call    mutex_unlock

        xor     eax, eax

        xor     eax, eax

        ret

        ret