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[PATCH 10/34] commit-graph: simplify write_commit_graph_file() #2

From
SZEDER Gábor <szeder.dev@gmail.com>
Date
May 29, 2020, 08:50 UTC
Message-ID
<20200529085038.26008-11-szeder.dev@gmail.com>
In-Reply-To
<20200529085038.26008-1-szeder.dev@gmail.com>

Unify the 'chunk_ids' and 'chunk_sizes' arrays into an array of 'struct chunk_info'. This will allow more cleanups in the following patches.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
---
 commit-graph.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/commit-graph.c b/commit-graph.c
index 416f4b2468..d95c739c10 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1344,14 +1344,18 @@ static int write_graph_chunk_base(struct hashfile *f,
 	return 0;
 }
 
+struct chunk_info {
+	uint32_t id;
+	uint64_t size;
+};
+
 static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 {
 	uint32_t i;
 	int fd;
 	struct hashfile *f;
 	struct lock_file lk = LOCK_INIT;
-	uint32_t chunk_ids[6];
-	uint64_t chunk_sizes[6];
+	struct chunk_info chunks[6];
 	const unsigned hashsz = the_hash_algo->rawsz;
 	struct strbuf progress_title = STRBUF_INIT;
 	int num_chunks = 3;
@@ -1394,25 +1398,25 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 		f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
 	}
 
-	chunk_ids[0] = GRAPH_CHUNKID_OIDFANOUT;
-	chunk_sizes[0] = GRAPH_FANOUT_SIZE;
-	chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP;
-	chunk_sizes[1] = hashsz * ctx->commits.nr;
-	chunk_ids[2] = GRAPH_CHUNKID_DATA;
-	chunk_sizes[2] = (hashsz + 16) * ctx->commits.nr;
+	chunks[0].id = GRAPH_CHUNKID_OIDFANOUT;
+	chunks[0].size = GRAPH_FANOUT_SIZE;
+	chunks[1].id = GRAPH_CHUNKID_OIDLOOKUP;
+	chunks[1].size = hashsz * ctx->commits.nr;
+	chunks[2].id = GRAPH_CHUNKID_DATA;
+	chunks[2].size = (hashsz + 16) * ctx->commits.nr;
 	if (ctx->num_extra_edges) {
-		chunk_ids[num_chunks] = GRAPH_CHUNKID_EXTRAEDGES;
-		chunk_sizes[3] = 4 * ctx->num_extra_edges;
+		chunks[num_chunks].id = GRAPH_CHUNKID_EXTRAEDGES;
+		chunks[num_chunks].size = 4 * ctx->num_extra_edges;
 		num_chunks++;
 	}
 	if (ctx->num_commit_graphs_after > 1) {
-		chunk_ids[num_chunks] = GRAPH_CHUNKID_BASE;
-		chunk_sizes[4] = hashsz * (ctx->num_commit_graphs_after - 1);
+		chunks[num_chunks].id = GRAPH_CHUNKID_BASE;
+		chunks[num_chunks].size = hashsz * (ctx->num_commit_graphs_after - 1);
 		num_chunks++;
 	}
 
-	chunk_ids[num_chunks] = 0;
-	chunk_sizes[num_chunks] = 0;
+	chunks[num_chunks].id = 0;
+	chunks[num_chunks].size = 0;
 
 	hashwrite_be32(f, GRAPH_SIGNATURE);
 
@@ -1425,12 +1429,12 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 	for (i = 0; i <= num_chunks; i++) {
 		uint32_t chunk_write[3];
 
-		chunk_write[0] = htonl(chunk_ids[i]);
+		chunk_write[0] = htonl(chunks[i].id);
 		chunk_write[1] = htonl(chunk_offset >> 32);
 		chunk_write[2] = htonl(chunk_offset & 0xffffffff);
 		hashwrite(f, chunk_write, 12);
 
-		chunk_offset += chunk_sizes[i];
+		chunk_offset += chunks[i].size;
 	}
 
 	if (ctx->report_progress) {
-- 
2.27.0.rc1.431.g5c813f95dc
Previous: SZEDER GáborNext: SZEDER Gábor
Message 13 of 43 in “An alternative modified path Bloom filters implementation”
  1. 00/34 An alternative modified path Bloom filters implementationSZEDER Gábor, May 29, 2020
  2. 01/34 tree-walk.c: don't match submodule entries for 'submod/anything'SZEDER Gábor, May 29, 2020
  3. 02/34 commit-graph: fix parsing the Chunk Lookup tableSZEDER Gábor, May 29, 2020
  4. 03/34 commit-graph-format.txt: all multi-byte numbers are in network byte orderSZEDER Gábor, May 29, 2020
  5. 04/34 commit-slab: add a function to deep free entries on the slabSZEDER Gábor, May 29, 2020
  6. Derrick StoleeJun 4, 2020
  7. SZEDER GáborJun 27, 2020
  8. Derrick StoleeJun 29, 2020
  9. 05/34 diff.h: drop diff_tree_oid() & friends' return valueSZEDER Gábor, May 29, 2020
  10. 07/34 commit-graph: simplify parse_commit_graph() #1SZEDER Gábor, May 29, 2020
  11. 06/34 commit-graph: clean up #includesSZEDER Gábor, May 29, 2020
  12. 09/34 commit-graph: simplify write_commit_graph_file() #1SZEDER Gábor, May 29, 2020
  13. 10/34 commit-graph: simplify write_commit_graph_file() #2SZEDER Gábor, May 29, 2020
  14. 08/34 commit-graph: simplify parse_commit_graph() #2SZEDER Gábor, May 29, 2020
  15. 11/34 commit-graph: allocate the 'struct chunk_info' array dinamicallySZEDER Gábor, May 29, 2020
  16. 12/34 commit-graph: unify the signatures of all write_graph_chunk_*() functionsSZEDER Gábor, May 29, 2020
  17. 13/34 commit-graph: simplify write_commit_graph_file() #3SZEDER Gábor, May 29, 2020
  18. 14/34 commit-graph: check chunk sizes after writingSZEDER Gábor, May 29, 2020
  19. 16/34 Add a generic and minimal Bloom filter implementationSZEDER Gábor, May 29, 2020
  20. 17/34 Import a streaming-capable Murmur3 hash function implementationSZEDER Gábor, May 29, 2020
  21. 15/34 commit-graph-format.txt: document the modified path Bloom filter chunksSZEDER Gábor, May 29, 2020
  22. SZEDER GáborJun 2, 2020
  23. 18/34 commit-graph: write "empty" Modified Path Bloom Filter Index chunkSZEDER Gábor, May 29, 2020
  24. 19/34 commit-graph: add commit slab for modified path Bloom filtersSZEDER Gábor, May 29, 2020
  25. 20/34 commit-graph: fill the Modified Path Bloom Filter Index chunkSZEDER Gábor, May 29, 2020
  26. 21/34 commit-graph: load and use the Modified Path Bloom Filter Index chunkSZEDER Gábor, May 29, 2020
  27. 27/34 commit-graph: load modified path Bloom filters for merge commitsSZEDER Gábor, May 29, 2020
  28. 28/34 commit-graph: write Modified Path Bloom Filter Merge Index chunkSZEDER Gábor, May 29, 2020
  29. 30/34 commit-graph: move write_commit_graph_reachable below write_commit_graphSZEDER Gábor, May 29, 2020
  30. 29/34 commit-graph: extract init and free write_commit_graph_contextSZEDER Gábor, May 29, 2020
  31. 31/34 t7007-show: make the first test compatible with the next patchSZEDER Gábor, May 29, 2020
  32. 26/34 commit-graph: deduplicate modified path Bloom filtersSZEDER Gábor, May 29, 2020
  33. 25/34 commit-graph: check embedded modified path Bloom filters with a maskSZEDER Gábor, May 29, 2020
  34. 24/34 commit-graph: check all leading directories in modified path Bloom filtersSZEDER Gábor, May 29, 2020
  35. 23/34 commit-graph: load and use the Modified Path Bloom Filters chunkSZEDER Gábor, May 29, 2020
  36. 22/34 commit-graph: write the Modified Path Bloom Filters chunkSZEDER Gábor, May 29, 2020
  37. 34/34 commit-graph: use modified path Bloom filters with wildcards, if possibleSZEDER Gábor, May 29, 2020
  38. 33/34 commit-graph: write modified path Bloom filters in "history order"SZEDER Gábor, May 29, 2020
  39. 32/34 PoC commit-graph: use revision walk machinery for '--reachable'SZEDER Gábor, May 29, 2020
  40. Derrick StoleeMay 29, 2020
  41. Johannes SchindelinMay 28, 2020
  42. Taylor BlauJun 1, 2020
  43. Junio C HamanoJun 2, 2020

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