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-rw-r--r--include/data_writer.h2
-rw-r--r--include/sqfs/block_processor.h4
2 files changed, 5 insertions, 1 deletions
diff --git a/include/data_writer.h b/include/data_writer.h
index 4d86bbf..9e82d11 100644
--- a/include/data_writer.h
+++ b/include/data_writer.h
@@ -37,7 +37,7 @@ enum {
*/
data_writer_t *data_writer_create(sqfs_super_t *super, sqfs_compressor_t *cmp,
sqfs_file_t *file, size_t devblksize,
- unsigned int num_jobs);
+ unsigned int num_jobs, size_t max_backlog);
void data_writer_destroy(data_writer_t *data);
diff --git a/include/sqfs/block_processor.h b/include/sqfs/block_processor.h
index ed38be6..1032a35 100644
--- a/include/sqfs/block_processor.h
+++ b/include/sqfs/block_processor.h
@@ -161,6 +161,9 @@ extern "C" {
* the deep copy function of the compressor is used to create
* several instances that don't interfere with each other.
* @param num_workers The number of worker threads to create.
+ * @param max_backlog The maximum number of blocks currently in flight. When
+ * trying to add more, enqueueing blocks until the in-flight
+ * block count drops below the threshold.
* @param user An arbitrary user pointer to pass to the block callback.
* @param callback A function to call for each finished data block.
*
@@ -172,6 +175,7 @@ SQFS_API
sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
sqfs_compressor_t *cmp,
unsigned int num_workers,
+ size_t max_backlog,
void *user,
sqfs_block_cb callback);