midx: add num_large_offsets to write_midx_context

In an effort to align write_midx_internal() with the chunk-format API,
continue to group necessary data into "struct write_midx_context". This
change collects the "uint32_t num_large_offsets" into the context. With
this new data, write_midx_large_offsets() now matches the
chunk_write_fn type.

Signed-off-by: Derrick Stolee <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: derrickstolee

midx.c

@@ -464,6 +464,7 @@ struct write_midx_context {
 
 	uint32_t *pack_perm;
 	unsigned large_offsets_needed:1;
+	uint32_t num_large_offsets;
 };
 
 static void add_pack_to_midx(const char *full_path, size_t full_path_len,
@@ -772,11 +773,14 @@ static size_t write_midx_object_offsets(struct hashfile *f,
 	return written;
 }
 
-static size_t write_midx_large_offsets(struct hashfile *f, uint32_t nr_large_offset,
-				       struct pack_midx_entry *objects, uint32_t nr_objects)
+static size_t write_midx_large_offsets(struct hashfile *f,
+				       void *data)
 {
-	struct pack_midx_entry *list = objects, *end = objects + nr_objects;
+	struct write_midx_context *ctx = data;
+	struct pack_midx_entry *list = ctx->entries;
+	struct pack_midx_entry *end = ctx->entries + ctx->entries_nr;
 	size_t written = 0;
+	uint32_t nr_large_offset = ctx->num_large_offsets;
 
 	while (nr_large_offset) {
 		struct pack_midx_entry *obj;
@@ -811,7 +815,6 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *
 	uint64_t written = 0;
 	uint32_t chunk_ids[MIDX_MAX_CHUNKS + 1];
 	uint64_t chunk_offsets[MIDX_MAX_CHUNKS + 1];
-	uint32_t num_large_offsets = 0;
 	struct progress *progress = NULL;
 	int pack_name_concat_len = 0;
 	int dropped_packs = 0;
@@ -861,7 +864,7 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *
 	ctx.large_offsets_needed = 0;
 	for (i = 0; i < ctx.entries_nr; i++) {
 		if (ctx.entries[i].offset > 0x7fffffff)
-			num_large_offsets++;
+			ctx.num_large_offsets++;
 		if (ctx.entries[i].offset > 0xffffffff)
 			ctx.large_offsets_needed = 1;
 	}
@@ -961,7 +964,7 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *
 
 		cur_chunk++;
 		chunk_offsets[cur_chunk] = chunk_offsets[cur_chunk - 1] +
-					   num_large_offsets * MIDX_CHUNK_LARGE_OFFSET_WIDTH;
+					   ctx.num_large_offsets * MIDX_CHUNK_LARGE_OFFSET_WIDTH;
 	}
 
 	chunk_ids[cur_chunk] = 0;
@@ -1010,7 +1013,7 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index *
 				break;
 
 			case MIDX_CHUNKID_LARGEOFFSETS:
-				written += write_midx_large_offsets(f, num_large_offsets, ctx.entries, ctx.entries_nr);
+				written += write_midx_large_offsets(f, &ctx);
 				break;
 
 			default: