From 4a270f301bbf2cf07c340e895cb79c226b9fb7fb Mon Sep 17 00:00:00 2001
From: Curtis McEnroe <june@causal.agency>
Date: Fri, 4 Jan 2019 11:01:49 -0500
Subject: Restore old data format

---
 client.c |  2 +-
 merge.c  |  7 +++++--
 meta.c   | 11 ++++++-----
 server.c | 14 +++++++-------
 torus.h  | 35 +++++++++++++++++++++++++----------
 5 files changed, 44 insertions(+), 25 deletions(-)

diff --git a/client.c b/client.c
index 6edcd6e..7f4c158 100644
--- a/client.c
+++ b/client.c
@@ -490,7 +490,7 @@ static void inputNormal(bool keyCode, wchar_t ch) {
 static void inputHelp(bool keyCode, wchar_t ch) {
 	(void)keyCode;
 	(void)ch;
-	if (tile.meta.createTime) drawTile(&tile);
+	if (tileMeta(&tile).createTime) drawTile(&tile);
 	modeNormal();
 }
 
diff --git a/merge.c b/merge.c
index 997f97f..0e45c84 100644
--- a/merge.c
+++ b/merge.c
@@ -105,11 +105,14 @@ int main(int argc, char *argv[]) {
 		if (!countA && !countB) break;
 		if (!countA || !countB) errx(EX_DATAERR, "different size inputs");
 
-		const struct Tile *tileC = (tileA.meta.accessTime > tileB.meta.accessTime)
+		struct Meta metaA = tileMeta(&tileA);
+		struct Meta metaB = tileMeta(&tileB);
+
+		const struct Tile *tileC = (metaA.accessTime > metaB.accessTime)
 			? &tileA
 			: &tileB;
 
-		if (tileA.meta.modifyTime != tileB.meta.modifyTime) {
+		if (metaA.modifyTime != metaB.modifyTime) {
 			drawTile(0, &tileA);
 			drawTile(CellRows + 1, &tileB);
 			move(CellRows * 2 + 2, 0);
diff --git a/meta.c b/meta.c
index 90577d1..5e1736e 100644
--- a/meta.c
+++ b/meta.c
@@ -28,15 +28,16 @@ int main() {
 		if (ferror(stdin)) err(EX_IOERR, "(stdin)");
 		if (!count) return EX_OK;
 
+		struct Meta meta = tileMeta(&tile);
 		printf(
 			"%d,%d,%jd,%u,%jd,%u,%jd\n",
 			i % TileCols,
 			i / TileCols,
-			tile.meta.createTime,
-			tile.meta.modifyCount,
-			tile.meta.modifyTime,
-			tile.meta.accessCount,
-			tile.meta.accessTime
+			meta.createTime,
+			meta.modifyCount,
+			meta.modifyTime,
+			meta.accessCount,
+			meta.accessTime
 		);
 	}
 }
diff --git a/server.c b/server.c
index 47441cc..f90f369 100644
--- a/server.c
+++ b/server.c
@@ -64,25 +64,25 @@ static void tilesMap(const char *path) {
 
 static struct Tile *tileGet(uint32_t tileX, uint32_t tileY) {
 	struct Tile *tile = &tiles[tileY * TileRows + tileX];
-	if (!tile->meta.createTime) {
+	if (!tile->createTime) {
 		memset(tile->cells, ' ', CellsSize);
 		memset(tile->colors, ColorWhite, CellsSize);
-		tile->meta.createTime = time(NULL);
+		tile->createTime = time(NULL);
 	}
 	return tile;
 }
 
 static struct Tile *tileAccess(uint32_t tileX, uint32_t tileY) {
 	struct Tile *tile = tileGet(tileX, tileY);
-	tile->meta.accessTime = time(NULL);
-	tile->meta.accessCount++;
+	tile->accessTime = time(NULL);
+	tile->accessCount++;
 	return tile;
 }
 
 static struct Tile *tileModify(uint32_t tileX, uint32_t tileY) {
 	struct Tile *tile = tileGet(tileX, tileY);
-	tile->meta.modifyTime = time(NULL);
-	tile->meta.modifyCount++;
+	tile->modifyTime = time(NULL);
+	tile->modifyCount++;
 	return tile;
 }
 
@@ -310,7 +310,7 @@ static bool clientMap(const struct Client *client) {
 		for (int32_t x = 0; x < MapCols; ++x) {
 			uint32_t tileY = ((mapY + y) % TileRows + TileRows) % TileRows;
 			uint32_t tileX = ((mapX + x) % TileCols + TileCols) % TileCols;
-			struct Meta meta = tiles[tileY * TileRows + tileX].meta;
+			struct Meta meta = tileMeta(&tiles[tileY * TileRows + tileX]);
 
 			if (meta.createTime) {
 				if (meta.createTime < map.min.createTime) {
diff --git a/torus.h b/torus.h
index d469014..a18f515 100644
--- a/torus.h
+++ b/torus.h
@@ -57,7 +57,7 @@ static const wchar_t CP437[256] = (
 );
 
 enum {
-	CellRows = 24,
+	CellRows = 25,
 	CellCols = 80,
 };
 static const size_t CellsSize = sizeof(uint8_t[CellRows][CellCols]);
@@ -74,24 +74,39 @@ struct Meta {
 };
 
 struct Tile {
-	alignas(4096) uint8_t cells[CellRows][CellCols];
-	uint8_t colors[CellRows][CellCols];
-	struct Meta meta;
+	alignas(4096)
+	time_t createTime;
+	time_t modifyTime;
+	alignas(16) uint8_t cells[CellRows][CellCols];
+	alignas(16) uint8_t colors[CellRows][CellCols];
+	uint32_t modifyCount;
+	uint32_t accessCount;
+	time_t accessTime;
 };
 static_assert(4096 == sizeof(struct Tile), "struct Tile is page-sized");
 
+static inline struct Meta tileMeta(const struct Tile *tile) {
+	return (struct Meta) {
+		.createTime = tile->createTime,
+		.modifyTime = tile->modifyTime,
+		.accessTime = tile->accessTime,
+		.modifyCount = tile->modifyCount,
+		.accessCount = tile->accessCount,
+	};
+}
+
 enum {
-	TileRows = 64,
-	TileCols = 64,
+	TileRows = 512,
+	TileCols = 512,
 };
 static const size_t TilesSize = sizeof(struct Tile[TileRows][TileCols]);
 
-static const uint32_t TileInitX = TileCols / 2;
-static const uint32_t TileInitY = TileRows / 2;
+static const uint32_t TileInitX = 0;
+static const uint32_t TileInitY = 0;
 
 enum {
-	MapRows = 7,
-	MapCols = 7,
+	MapRows = 11,
+	MapCols = 11,
 };
 
 struct Map {
-- 
cgit 1.4.1