xz_dec_lzma2_reset

Name:xz_dec_lzma2_reset

Proto:enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s, uint8_t props)

Type:enum xz_ret

Parameter:

Type	Parameter	Name
struct xz_dec_lzma2 *	s
uint8_t	props

1135

If props > 39 Then Return XZ_OPTIONS_ERROR

1138

Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream. = 2 + (props & 1)

1139

Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream. <<= (props >> 1) + 11

1141

If DEC_IS_MULTI(Operation mode ) Then

1142

If Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream. > Maximum allowed dictionary size in multi-call mode.* This is ignored in single-call mode. Then Return XZ_MEMLIMIT_ERROR

1145

End of the dictionary buffer. In multi-call mode, this is* the same as the dictionary size. In single-call mode, this* indicates the size of the output buffer. = Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream.

1147

If DEC_IS_DYNALLOC(Operation mode ) Then

1148

If Amount of memory currently allocated for the dictionary.* This is used only with XZ_DYNALLOC. (With XZ_PREALLOC,* size_max is always the same as the allocated size.) < Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream. Then

1149

Amount of memory currently allocated for the dictionary.* This is used only with XZ_DYNALLOC. (With XZ_PREALLOC,* size_max is always the same as the allocated size.) = Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream.

1150

vfree(Beginning of the history buffer )

1151

Beginning of the history buffer = vmalloc(Size of the dictionary as specified in Block Header. This is used* together with "full" to detect corrupt input that would make us* read beyond the beginning of the uncompressed stream.)

1152

If (Beginning of the history buffer == NULL) Then

1153

Amount of memory currently allocated for the dictionary.* This is used only with XZ_DYNALLOC. (With XZ_PREALLOC,* size_max is always the same as the allocated size.) = 0

1154

Return XZ_MEM_ERROR

1160

* Length of a match. This is updated so that dict_repeat can * be called again to finish repeating the whole match. = 0

1162

Position in xz_dec_lzma2_run(). = SEQ_CONTROL

1163

* True if dictionary reset is needed. This is false before * the first chunk (LZMA or uncompressed). = true

1165

size = 0

1167

Return XZ_OK

**Caller**
Name	Describe
dec_block_header	Decode the Block Header and initialize the filter chain.

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