Revised the Index handling code.

This breaks API and ABI but most apps are not affected
since most apps don't use this part of the API. You will
get a compile error if you are using anything that got
broken.

Summary of changes:

  - Ability to store Stream Flags, which are needed
    for random-access reading in multi-Stream files.

  - Separate function to set size of Stream Padding.

  - Iterator structure makes it possible to read the same
    lzma_index from multiple threads at the same time.

  - A lot faster code to locate Blocks.

  - Removed lzma_index_equal() without adding anything
    to replace it. I don't know what it should do exactly
    with the new features and what actually needs this
    function in the first place other than test_index.c,
    which now has its own code to compare lzma_indexes.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/liblzma/common/stream_buffer_encoder.c b/src/liblzma/common/stream_buffer_encoder.c
index dd94c22a..bbafaa6d 100644
--- a/src/liblzma/common/stream_buffer_encoder.c
+++ b/src/liblzma/common/stream_buffer_encoder.c
@@ -94,11 +94,11 @@ lzma_stream_buffer_encode(lzma_filter *filters, lzma_check check,
 	// Index
 	{
 		// Create an Index with one Record.
-		lzma_index *i = lzma_index_init(NULL, NULL);
+		lzma_index *i = lzma_index_init(allocator);
 		if (i == NULL)
 			return LZMA_MEM_ERROR;
 
-		lzma_ret ret = lzma_index_append(i, NULL,
+		lzma_ret ret = lzma_index_append(i, allocator,
 				lzma_block_unpadded_size(&block),
 				block.uncompressed_size);
 
@@ -111,7 +111,7 @@ lzma_stream_buffer_encode(lzma_filter *filters, lzma_check check,
 			stream_flags.backward_size = lzma_index_size(i);
 		}
 
-		lzma_index_end(i, NULL);
+		lzma_index_end(i, allocator);
 
 		if (ret != LZMA_OK)
 			return ret;