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From: "SZEDER Gábor via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: me@ttaylorr.com, szeder.dev@gmail.com, jnareb@gmail.com,
	peff@peff.net, garimasigit@gmail.com,
	"Derrick Stolee" <dstolee@microsoft.com>,
	"SZEDER Gábor" <szeder.dev@gmail.com>
Subject: [PATCH 10/10] commit-graph: simplify write_commit_graph_file() #2
Date: Fri, 05 Jun 2020 13:00:32 +0000	[thread overview]
Message-ID: <5984fb01ebcff326fe137720e5fcf784cf321e34.1591362033.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.650.git.1591362032.gitgitgadget@gmail.com>

From: =?UTF-8?q?SZEDER=20G=C3=A1bor?= <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>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 commit-graph.c | 45 ++++++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 21 deletions(-)

diff --git a/commit-graph.c b/commit-graph.c
index 79cddabcd12..887837e8826 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1522,14 +1522,18 @@ 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[MAX_NUM_CHUNKS + 1];
-	uint64_t chunk_sizes[MAX_NUM_CHUNKS + 1];
+	struct chunk_info chunks[MAX_NUM_CHUNKS + 1];
 	const unsigned hashsz = the_hash_algo->rawsz;
 	struct strbuf progress_title = STRBUF_INIT;
 	int num_chunks = 3;
@@ -1573,35 +1577,34 @@ 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[num_chunks] = 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->changed_paths) {
-		chunk_ids[num_chunks] = GRAPH_CHUNKID_BLOOMINDEXES;
-		chunk_sizes[num_chunks] = sizeof(uint32_t) * ctx->commits.nr;
+		chunks[num_chunks].id = GRAPH_CHUNKID_BLOOMINDEXES;
+		chunks[num_chunks].size = sizeof(uint32_t) * ctx->commits.nr;
 		num_chunks++;
-		chunk_ids[num_chunks] = GRAPH_CHUNKID_BLOOMDATA;
-		chunk_sizes[num_chunks] = sizeof(uint32_t) * 3
+		chunks[num_chunks].id = GRAPH_CHUNKID_BLOOMDATA;
+		chunks[num_chunks].size = sizeof(uint32_t) * 3
 					  + ctx->total_bloom_filter_data_size;
 		num_chunks++;
 	}
 	if (ctx->num_commit_graphs_after > 1) {
-		chunk_ids[num_chunks] = GRAPH_CHUNKID_BASE;
-		chunk_sizes[num_chunks] = 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);
 
@@ -1614,12 +1617,12 @@ 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) {
-- 
gitgitgadget

  parent reply	other threads:[~2020-06-05 13:01 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-05 13:00 [PATCH 00/10] Szeder's commit-graph cleanups Derrick Stolee via GitGitGadget
2020-06-05 13:00 ` [PATCH 01/10] tree-walk.c: don't match submodule entries for 'submod/anything' SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 02/10] commit-graph: fix parsing the Chunk Lookup table SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 03/10] commit-graph-format.txt: all multi-byte numbers are in network byte order SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 04/10] commit-slab: add a function to deep free entries on the slab SZEDER Gábor via GitGitGadget
2020-06-18 20:59   ` René Scharfe
2020-06-19 12:52     ` Derrick Stolee
2020-06-27 15:53   ` SZEDER Gábor
2020-06-05 13:00 ` [PATCH 05/10] diff.h: drop diff_tree_oid() & friends' return value SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 06/10] commit-graph: clean up #includes SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 07/10] commit-graph: simplify parse_commit_graph() #1 SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 08/10] commit-graph: simplify parse_commit_graph() #2 SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` [PATCH 09/10] commit-graph: simplify write_commit_graph_file() #1 SZEDER Gábor via GitGitGadget
2020-06-05 13:00 ` SZEDER Gábor via GitGitGadget [this message]
2020-06-08 17:39 ` [PATCH 00/10] Szeder's commit-graph cleanups Junio C Hamano
2020-06-18  1:48 ` Derrick Stolee

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