40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
if (typeof module != 'undefined') {
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module.exports = {
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by_filter: sync_by_filter,
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by_filter_block: sync_by_filter_block,
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}
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}
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function sync_by_filter_block(block, count, buf, bloom_blocktx, result_callback) {
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for (let j = 0; j < count; j++) {
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let w = new DataView(buf);
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w.setInt32(4, j);
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const r = new Uint8Array(buf);
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bloom_blocktx.check(r).then(function(ok) {
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if (ok) {
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console.debug('match in block ' + block + ' tx ' + j);
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result_callback(block, j);
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}
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});
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}
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}
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function sync_by_filter(lo, hi, bloom_block, bloom_blocktx, tx_count_getter, result_callback) {
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for (let i = lo; i <= hi; i++) {
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let a = new ArrayBuffer(8);
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let w = new DataView(a);
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w.setInt32(0, i);
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const r = new Uint8Array(a.slice(0, 4));
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bloom_block.check(r).then(function(ok) {
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if (ok) {
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console.debug('match in block ' + i);
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tx_count_getter(i).then(function(n) {
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sync_by_filter_block(i, n, a, bloom_blocktx, result_callback);
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}).catch((e) => {
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console.error('get count fail', e);
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});
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}
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});
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}
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}
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