dec_index

Name:Decode the Number of Records, Unpadded Size, and Uncompressed Size* fields from the Index field. That is, Index Padding and CRC32 are not* decoded by this function.* This can return XZ_OK (more input needed), XZ_STREAM_END (everything

Proto:static enum xz_ret dec_index(struct xz_dec *s, struct xz_buf *b)

Type:enum xz_ret

Parameter:

Type	Parameter	Name
struct xz_dec *	s
struct xz_buf *	b

301

ret = Decode a variable-length integer (little-endian base-128 encoding)

302

If ret != XZ_STREAM_END Then

303

Update the Index size and the CRC32 value.

304

Return ret

308

Case Position in dec_index() == SEQ_INDEX_COUNT

309

Number of Records (matches block.count in valid files) = Variable-length integer decoded by dec_vli()

316

If Number of Records (matches block.count in valid files) != Number of Blocks decoded so far Then Return XZ_DATA_ERROR

319

Position in dec_index() = SEQ_INDEX_UNPADDED

320

Break

322

Case Position in dec_index() == SEQ_INDEX_UNPADDED

323

unpadded += Variable-length integer decoded by dec_vli()

324

Position in dec_index() = SEQ_INDEX_UNCOMPRESSED

325

Break

327

Case Position in dec_index() == SEQ_INDEX_UNCOMPRESSED

328

uncompressed += Variable-length integer decoded by dec_vli()

329

crc32 = xz_crc32((constuint8_t * ) & Hash calculated from the Records (matches block.hash in* valid files)., size of Hash calculated from the Records (matches block.hash in* valid files). , crc32)

333

--Number of Records (matches block.count in valid files)

334

Position in dec_index() = SEQ_INDEX_UNPADDED

335

Break

337

When Number of Records (matches block.count in valid files) > 0 cycle

339

Return XZ_STREAM_END

**Caller**
Name	Describe
dec_main

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion

Function report