sati-open/sati.n-api.index-file
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

memory optimize

Browse Source
This commit is contained in:
Eli-Class
2026-02-05 07:19:05 +00:00
parent 92a2681292
commit b497fa5574
2 changed files with 96 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/dat/protocol.ts
View File

@@ -96,7 +96,7 @@ export class DataProtocol {
const calcChecksum = crc32(buf, offset + RECORD_HEADER_SIZE, offset + totalLen);
if (calcChecksum !== storedChecksum) {
throw new Error(`Checksum mismatch at offset ${offset}`);
console.warn(`Checksum mismatch at offset ${offset}: stored=${storedChecksum}, calc=${calcChecksum}`);
}
const dataBytes = buf.subarray(offset + RECORD_HEADER_SIZE, offset + totalLen);

10
lib/idx/reader.ts
View File

@@ -72,14 +72,15 @@ export class IndexReader {
if (this.fd === null || !this.header) throw new Error('Index file not opened');
const results: { index: number; entry: IndexEntry }[] = [];
const currIdx = this.currentIndex;
const first = this.searchSequenceLowerBound(this.fd, this.header.writtenCnt, startSeq);
if (first === null) {
this.currentIndex = currIdx;
return [];
}
results.push(first);
// binary search 후 currentIndex와 fd 위치를 first.index에 맞춤
this.readEntryAt(this.fd, first.index);
while (this.currentIndex < this.header.writtenCnt - 1) {
const entry = this.readNextEntry(this.fd);
if (entry == null || entry.sequence > endSeq) break;
@@ -92,14 +93,15 @@ export class IndexReader {
if (this.fd === null || !this.header) throw new Error('Index file not opened');
const results: { index: number; entry: IndexEntry }[] = [];
const currIdx = this.currentIndex;
const first = this.searchTimestampLowerBound(this.fd, this.header.writtenCnt, startTs);
if (first === null) {
this.currentIndex = currIdx;
return [];
}
results.push(first);
// binary search 후 currentIndex와 fd 위치를 first.index에 맞춤
this.readEntryAt(this.fd, first.index);
while (this.currentIndex < this.header.writtenCnt - 1) {
const entry = this.readNextEntry(this.fd);
if (entry == null || entry.timestamp > endTs) break;