Added comments

pull/2135/head
David Garcia Quintas 10 years ago
parent 7cceb09b79
commit 7c4fdb5628
  1. 18
      src/core/channel/compress_filter.c

@ -43,18 +43,25 @@
#include "src/core/compression/message_compress.h"
typedef struct call_data {
gpr_slice_buffer slices;
gpr_slice_buffer slices; /**< Buffers up input slices to be compressed */
grpc_linked_mdelem compression_algorithm_storage;
int remaining_slice_bytes;
int written_initial_metadata;
int remaining_slice_bytes; /**< Input data to be read, as per BEGIN_MESSAGE */
int written_initial_metadata; /**< Already processed initial md? */
/** Compression algorithm we'll try to use. It may be given by incoming
* metadata, or by the channel's default compression settings. */
grpc_compression_algorithm compression_algorithm;
gpr_uint8 has_compression_algorithm;
/** If true, contents of \a compression_algorithm are authoritative */
int has_compression_algorithm;
} call_data;
typedef struct channel_data {
/** Metadata key for the incoming (requested) compression algorithm */
grpc_mdstr *mdstr_request_compression_algorithm_key;
/** Metadata key for the outgoing (used) compression algorithm */
grpc_mdstr *mdstr_outgoing_compression_algorithm_key;
/** Precomputed metadata elements for all available compression algorithms */
grpc_mdelem *mdelem_compression_algorithms[GRPC_COMPRESS_ALGORITHMS_COUNT];
/** The default, channel-level, compression algorithm */
grpc_compression_algorithm default_compression_algorithm;
} channel_data;
@ -157,6 +164,9 @@ static void finish_compressed_sopb(grpc_stream_op_buffer *send_ops,
grpc_sopb_destroy(&new_send_ops);
}
/** Filter's "main" function, called for any incoming grpc_transport_stream_op
* instance that holds a non-zero number of send operations, accesible to this
* function in \a send_ops. */
static void process_send_ops(grpc_call_element *elem,
grpc_stream_op_buffer *send_ops) {
call_data *calld = elem->call_data;

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