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업로드된 청크 목록을 비트맵을 활용해 효율적으로 저장하도록 개선

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static
2026-01-12 18:37:36 +09:00
parent c778a4fb9e
commit 00b9858db7
10 changed files with 83 additions and 94 deletions
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12
src/lib/server/services/upload.ts
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@@ -8,6 +8,12 @@ import { safeRecursiveRm, safeUnlink } from "$lib/server/modules/filesystem";
const chunkLocks = new Set<string>();
const isChunkUploaded = (bitmap: Buffer, chunkIndex: number) => {
chunkIndex -= 1;
const byte = bitmap[Math.floor(chunkIndex / 8)];
return !!byte && (byte & (1 << (chunkIndex % 8))) !== 0; // Postgres sucks
};
export const uploadChunk = async (
userId: number,
sessionId: string,
@@ -28,13 +34,13 @@ export const uploadChunk = async (
const session = await UploadRepo.getUploadSession(sessionId, userId);
if (!session) {
error(404, "Invalid upload id");
} else if (chunkIndex >= session.totalChunks) {
} else if (chunkIndex > session.totalChunks) {
error(400, "Invalid chunk index");
} else if (session.uploadedChunks.includes(chunkIndex)) {
} else if (isChunkUploaded(session.bitmap, chunkIndex)) {
error(409, "Chunk already uploaded");
}
const isLastChunk = chunkIndex === session.totalChunks - 1;
const isLastChunk = chunkIndex === session.totalChunks;
filePath = `${session.path}/${chunkIndex}`;
const hashStream = createHash("sha256");