done purchases remove, ocr scan, read image

express-server/node_modules/dicer/bench/parted-bench-multipart-parser.js

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+// A special, edited version of the multipart parser from parted is needed here
+// because otherwise it attempts to do some things above and beyond just parsing
+// -- like saving to disk and whatnot
+
+var assert = require('assert');
+var Parser = require('./parted-multipart'),
+    boundary = '-----------------------------168072824752491622650073',
+    parser = new Parser('boundary=' + boundary),
+    mb = 100,
+    buffer = createMultipartBuffer(boundary, mb * 1024 * 1024),
+    callbacks =
+      { partBegin: -1,
+        partEnd: -1,
+        headerField: -1,
+        headerValue: -1,
+        partData: -1,
+        end: -1,
+      };
+
+
+parser.on('header', function() {
+  //callbacks.headerField++;
+});
+
+parser.on('data', function() {
+  //callbacks.partBegin++;
+});
+
+parser.on('part', function() {
+
+});
+
+parser.on('end', function() {
+  //callbacks.end++;
+});
+
+var start = +new Date(),
+    nparsed = parser.write(buffer),
+    duration = +new Date - start,
+    mbPerSec = (mb / (duration / 1000)).toFixed(2);
+
+console.log(mbPerSec+' mb/sec');
+
+//assert.equal(nparsed, buffer.length);
+
+function createMultipartBuffer(boundary, size) {
+  var head =
+        '--'+boundary+'\r\n'
+      + 'content-disposition: form-data; name="field1"\r\n'
+      + '\r\n'
+    , tail = '\r\n--'+boundary+'--\r\n'
+    , buffer = new Buffer(size);
+
+  buffer.write(head, 'ascii', 0);
+  buffer.write(tail, 'ascii', buffer.length - tail.length);
+  return buffer;
+}
+
+process.on('exit', function() {
+  /*for (var k in callbacks) {
+    assert.equal(0, callbacks[k], k+' count off by '+callbacks[k]);
+  }*/
+});