Refactor GPU device loading to avoid high promise stack.

diff --git a/src/lib/workers/powgpu.ts b/src/lib/workers/powgpu.ts
index 62672592259392e3097613530f0209983ebd9f5d..b60ce0392e851535c67b0f01a0bab7847ecce4d8 100644 (file)
--- a/src/lib/workers/powgpu.ts
+++ b/src/lib/workers/powgpu.ts
@@ -456,7 +456,6 @@ export class PowGpu extends WorkerInterface {
                        .catch(err => { throw new Error(err.message) })
        }
 
-
        /**
        * Finds a nonce that satisfies the Nano proof-of-work requirements.
        *
@@ -468,17 +467,12 @@ export class PowGpu extends WorkerInterface {
                if (typeof threshold !== 'number') throw new TypeError(`Invalid threshold ${threshold}`)
 
                // Ensure WebGPU is initialized before calculating, up to a max time frame
-               if (PowGpu.#device == null) {
-                       if (performance.now() > 8000) {
-                               throw new Error(`WebGPU device failed to load in time.`)
-                       }
-                       return await new Promise(resolve => {
-                               setTimeout(() => {
-                                       resolve(this.search(hash, threshold))
-                               }, 100)
+               while (PowGpu.#device == null && performance.now() < 8000) {
+                       await new Promise(resolve => {
+                               setTimeout(resolve, 100)
                        })
                }
-
+               if (PowGpu.#device == null) throw new Error(`WebGPU device failed to load.`)
 
                // Set up uniform buffer object
                // Note: u32 size is 4, but total alignment must be multiple of 16