|
| 1 | +'use strict'; |
| 2 | +// Flags: --expose-internals |
| 3 | +const common = require('../common'); |
| 4 | +const initHooks = require('./init-hooks'); |
| 5 | +const { checkInvocations } = require('./hook-checks'); |
| 6 | +const assert = require('assert'); |
| 7 | +const { async_id_symbol } = require('internal/async_hooks').symbols; |
| 8 | +const http = require('http'); |
| 9 | + |
| 10 | +// Checks that the async resource used in init in case of a resused handle |
| 11 | +// is not reused. Test is based on parallel\test-async-hooks-http-agent.js. |
| 12 | + |
| 13 | +const hooks = initHooks(); |
| 14 | +hooks.enable(); |
| 15 | + |
| 16 | +let asyncIdAtFirstReq; |
| 17 | +let asyncIdAtSecondReq; |
| 18 | + |
| 19 | +// Make sure a single socket is transparently reused for 2 requests. |
| 20 | +const agent = new http.Agent({ |
| 21 | + keepAlive: true, |
| 22 | + keepAliveMsecs: Infinity, |
| 23 | + maxSockets: 1 |
| 24 | +}); |
| 25 | + |
| 26 | +const server = http.createServer(common.mustCall((req, res) => { |
| 27 | + req.once('data', common.mustCallAtLeast(() => { |
| 28 | + res.writeHead(200, { 'Content-Type': 'text/plain' }); |
| 29 | + res.write('foo'); |
| 30 | + })); |
| 31 | + req.on('end', common.mustCall(() => { |
| 32 | + res.end('bar'); |
| 33 | + })); |
| 34 | +}, 2)).listen(0, common.mustCall(() => { |
| 35 | + const port = server.address().port; |
| 36 | + const payload = 'hello world'; |
| 37 | + |
| 38 | + // First request. This is useless except for adding a socket to the |
| 39 | + // agent’s pool for reuse. |
| 40 | + const r1 = http.request({ |
| 41 | + agent, port, method: 'POST' |
| 42 | + }, common.mustCall((res) => { |
| 43 | + // Remember which socket we used. |
| 44 | + const socket = res.socket; |
| 45 | + asyncIdAtFirstReq = socket[async_id_symbol]; |
| 46 | + assert.ok(asyncIdAtFirstReq > 0, `${asyncIdAtFirstReq} > 0`); |
| 47 | + // Check that request and response share their socket. |
| 48 | + assert.strictEqual(r1.socket, socket); |
| 49 | + |
| 50 | + res.on('data', common.mustCallAtLeast(() => {})); |
| 51 | + res.on('end', common.mustCall(() => { |
| 52 | + // setImmediate() to give the agent time to register the freed socket. |
| 53 | + setImmediate(common.mustCall(() => { |
| 54 | + // The socket is free for reuse now. |
| 55 | + assert.strictEqual(socket[async_id_symbol], -1); |
| 56 | + |
| 57 | + // Second request. To re-create the exact conditions from the |
| 58 | + // referenced issue, we use a POST request without chunked encoding |
| 59 | + // (hence the Content-Length header) and call .end() after the |
| 60 | + // response header has already been received. |
| 61 | + const r2 = http.request({ |
| 62 | + agent, port, method: 'POST', headers: { |
| 63 | + 'Content-Length': payload.length |
| 64 | + } |
| 65 | + }, common.mustCall((res) => { |
| 66 | + asyncIdAtSecondReq = res.socket[async_id_symbol]; |
| 67 | + assert.ok(asyncIdAtSecondReq > 0, `${asyncIdAtSecondReq} > 0`); |
| 68 | + assert.strictEqual(r2.socket, socket); |
| 69 | + |
| 70 | + // Empty payload, to hit the “right” code path. |
| 71 | + r2.end(''); |
| 72 | + |
| 73 | + res.on('data', common.mustCallAtLeast(() => {})); |
| 74 | + res.on('end', common.mustCall(() => { |
| 75 | + // Clean up to let the event loop stop. |
| 76 | + server.close(); |
| 77 | + agent.destroy(); |
| 78 | + })); |
| 79 | + })); |
| 80 | + |
| 81 | + // Schedule a payload to be written immediately, but do not end the |
| 82 | + // request just yet. |
| 83 | + r2.write(payload); |
| 84 | + })); |
| 85 | + })); |
| 86 | + })); |
| 87 | + r1.end(payload); |
| 88 | +})); |
| 89 | + |
| 90 | + |
| 91 | +process.on('exit', onExit); |
| 92 | + |
| 93 | +function onExit() { |
| 94 | + hooks.disable(); |
| 95 | + hooks.sanityCheck(); |
| 96 | + const activities = hooks.activities; |
| 97 | + |
| 98 | + // Verify both invocations |
| 99 | + const first = activities.filter((x) => x.uid === asyncIdAtFirstReq)[0]; |
| 100 | + checkInvocations(first, { init: 1, destroy: 1 }, 'when process exits'); |
| 101 | + |
| 102 | + const second = activities.filter((x) => x.uid === asyncIdAtSecondReq)[0]; |
| 103 | + checkInvocations(second, { init: 1, destroy: 1 }, 'when process exits'); |
| 104 | + |
| 105 | + // Verify reuse handle has been wrapped |
| 106 | + assert.strictEqual(first.type, second.type); |
| 107 | + assert.ok(first.handle !== second.handle, 'Resource reused'); |
| 108 | + assert.ok(first.handle === second.handle.handle, |
| 109 | + 'Resource not wrapped correctly'); |
| 110 | +} |
0 commit comments