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ximg: reduce gc frequency 

Signed-off-by: Varun Patil <radialapps@gmail.com>
monorepo
Varun Patil 2023-10-30 15:36:03 -07:00
parent 50bae02241
commit 93c0d2860b
1 changed files with 6 additions and 4 deletions
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10
src/components/frame/XImgCache.ts
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@ -9,6 +9,8 @@ let importer: ReturnType<typeof workerImporter>;
// Memcache for blob URLs // Memcache for blob URLs
const BLOB_CACHE = new Map<string, object>() as Map<string, [number, string]>; const BLOB_CACHE = new Map<string, object>() as Map<string, [number, string]>;
const BLOB_CACHE_GC = 10000;
const BLOB_CACHE_LIFETIME = 30000;
const BLOB_STICKY = new Map<string, number>(); const BLOB_STICKY = new Map<string, number>();
// Start and configure the worker // Start and configure the worker
@ -34,17 +36,17 @@ onDOMLoaded(() => {
for (const [src, cache] of BLOB_CACHE.entries()) { for (const [src, cache] of BLOB_CACHE.entries()) {
// Skip if sticky // Skip if sticky
if (BLOB_STICKY.has(cache[1])) { if (BLOB_STICKY.has(cache[1])) {
cache[0] = 30; // reset timer cache[0] = BLOB_CACHE_LIFETIME; // reset timer
continue; continue;
} }
// Decrement timer and revoke if expired // Decrement timer and revoke if expired
if ((cache[0] -= 3) <= 0) { if ((cache[0] -= BLOB_CACHE_GC) <= 0) {
URL.revokeObjectURL(cache[1]); URL.revokeObjectURL(cache[1]);
BLOB_CACHE.delete(src); BLOB_CACHE.delete(src);
} }
} }
}, 3000); }, BLOB_CACHE_GC);
}); });
/** Change stickiness for a BLOB url */ /** Change stickiness for a BLOB url */
@ -76,6 +78,6 @@ export async function fetchImage(url: string) {
} }
// Create new memecache entry // Create new memecache entry
BLOB_CACHE.set(url, [30, blobUrl]); // 30s expiration BLOB_CACHE.set(url, [BLOB_CACHE_LIFETIME, blobUrl]); // 30s expiration
return blobUrl; return blobUrl;
} }