yodaos-project / shadownode Goto Github PK
View Code? Open in Web Editor NEWUse Node.js in your end devices(QQ: 796448809)
Home Page: https://yodaos-project.github.io/ShadowNode/
License: Other
Use Node.js in your end devices(QQ: 796448809)
Home Page: https://yodaos-project.github.io/ShadowNode/
License: Other
The keyword const
and let
are such important features in JavaScript community, let's do support them!
Options in http.request(options[, callback])
shall support option agent
to control how a request behaves by default.
And it is possible to share http codebase with https.request
using request agent rather than re-implementing a mostly identical one.
agent <http.Agent> | <boolean> Controls Agent behavior. Possible values:
- undefined (default): use http.globalAgent for this host and port.
- Agent object: explicitly use the passed in Agent.
- false: causes a new Agent with default values to be used.
If change the module process
definition in src/modules.json
to
{
"native_files": ["modules/iotjs_module_process.c"],
"init": "InitProcess",
"js_file": "js/process.js"
}
and add a file src/js/process.js
with contents below
module.exports = native;
rebuild project and run iotjs with script below
require('process') === process // `false`, expecting `true`
We need 2 linters for our codebase:
If somebody has better option, please leave your suggestion :)
/cc @Rokid/node-js
the reason may be string.charAt out of range when invoke util.format
An unhandled promise rejection shall be caught globally and print a warning, however it's now been ignored implicitly.
Example code:
asyncFunction()
function asyncFunction () {
return Promise.reject(new Error('foobar'))
}
When an Buffer
object is 51208 Bytes, the buffer.toString()
would consumes over 5s to return, consider provide an async way buffer.toString(fn)
for this purpose :)
/cc @maxbbn
The logs:
==8824== 4 bytes in 1 blocks are definitely lost in loss record 1 of 5
==8824== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==8824== by 0x4E859F7: iotjs_buffer_allocate (iotjs_util.c:80)
==8824== by 0x4E7FD60: iotjs_string_create_with_buffer (iotjs_string.c:55)
==8824== by 0x4E80AFE: iotjs_jval_as_string (iotjs_binding.c:133)
==8824== by 0x4E9E948: TlsConstructor (iotjs_module_tls.c:204)
==8824== by 0x4ED6959: ecma_op_function_call (ecma-function-object.c:465)
==8824== by 0x4ED6DDA: ecma_op_function_construct_simple_or_external (ecma-function-object.c:594)
==8824== by 0x4ED6F90: ecma_op_function_construct (ecma-function-object.c:660)
==8824== by 0x4EF2337: opfunc_construct (vm.c:483)
==8824== by 0x4EF75D6: vm_execute (vm.c:2866)
==8824== by 0x4EF7898: vm_run (vm.c:2941)
==8824== by 0x4ED67D3: ecma_op_function_call (ecma-function-object.c:404)
==8824==
==8824== 13 bytes in 1 blocks are definitely lost in loss record 2 of 5
==8824== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==8824== by 0x4E859F7: iotjs_buffer_allocate (iotjs_util.c:80)
==8824== by 0x4E80A67: iotjs_jval_as_string (iotjs_binding.c:125)
==8824== by 0x4E9E948: TlsConstructor (iotjs_module_tls.c:204)
==8824== by 0x4ED6959: ecma_op_function_call (ecma-function-object.c:465)
==8824== by 0x4ED6DDA: ecma_op_function_construct_simple_or_external (ecma-function-object.c:594)
==8824== by 0x4ED6F90: ecma_op_function_construct (ecma-function-object.c:660)
==8824== by 0x4EF2337: opfunc_construct (vm.c:483)
==8824== by 0x4EF75D6: vm_execute (vm.c:2866)
==8824== by 0x4EF7898: vm_run (vm.c:2941)
==8824== by 0x4ED67D3: ecma_op_function_call (ecma-function-object.c:404)
==8824== by 0x4ED6DDA: ecma_op_function_construct_simple_or_external (ecma-function-object.c:594)
==8824==
==8824== 288 (256 direct, 32 indirect) bytes in 4 blocks are definitely lost in loss record 5 of 5
==8824== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==8824== by 0x4E859F7: iotjs_buffer_allocate (iotjs_util.c:80)
==8824== by 0x4E8BE9D: iotjs_crypto_hash_create (iotjs_module_crypto_hash.c:15)
==8824== by 0x4E8BF37: HashConstructor (iotjs_module_crypto_hash.c:27)
==8824== by 0x4ED6959: ecma_op_function_call (ecma-function-object.c:465)
==8824== by 0x4ED6DDA: ecma_op_function_construct_simple_or_external (ecma-function-object.c:594)
==8824== by 0x4ED6F90: ecma_op_function_construct (ecma-function-object.c:660)
==8824== by 0x4EF2337: opfunc_construct (vm.c:483)
==8824== by 0x4EF75D6: vm_execute (vm.c:2866)
==8824== by 0x4EF7898: vm_run (vm.c:2941)
==8824== by 0x4ED67D3: ecma_op_function_call (ecma-function-object.c:404)
==8824== by 0x4ED6DDA: ecma_op_function_construct_simple_or_external (ecma-function-object.c:594)
==8824==
==8824== LEAK SUMMARY:
==8824== definitely lost: 273 bytes in 6 blocks
==8824== indirectly lost: 32 bytes in 8 blocks
==8824== possibly lost: 0 bytes in 0 blocks
==8824== still reachable: 0 bytes in 0 blocks
==8824== suppressed: 0 bytes in 0 blocks
==8824==
==8824== For counts of detected and suppressed errors, rerun with: -v
==8824== ERROR SUMMARY: 6 errors from 6 contexts (suppressed: 0 from 0)
The stack is:
#0 0x0000007faca34950 in uv_is_closing () from /usr/lib/libiotjs.so
[Current thread is 1 (Thread 0x7facef3010 (LWP 15097))]
(gdb) bt
#0 0x0000007faca34950 in uv_is_closing () from /usr/lib/libiotjs.so
#1 0x0000007fac9ed750 in iotjs_handlewrap_close () from /usr/lib/libiotjs.so
#2 0x0000007faca33f78 in uv_walk () from /usr/lib/libiotjs.so
#3 0x0000007fac9ec508 in iotjs_entry () from /usr/lib/libiotjs.so
#4 0x0000007fac71a8e8 in __libc_start_main (main=0x0, argc=0, argv=0x0,
init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=<optimized out>) at libc-start.c:289
#5 0x0000000000400870 in _start () at ../sysdeps/aarch64/start.S:81
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
To reproduce:
https.get('https://foo.bar', (res) => {
// dont get the callback
});
ecma_value_t is an encoded value of primitive value, object, error, etc. There is no direct way to see object detail when debugging.
Helper API to print ecma value should be added.
By default, http module cannot not automatically derive content-length from input data since ClientRequest
is a duplex stream, client can continuously write data into stream if the stream is not ended, yet headers have been sent at the beginning of the request.
Thus the http client in node.js set header Transfer-Encoding
with chunked
by default, then encase data with an chunk length at the beginning of each chunk.
time
is an optional parameter that must be the result of a previous process.hrtime() call to diff with the current time.
demo script:
var NS_PER_SEC = 1e9;
var time = process.hrtime();
// [ 16264, 282919475 ]
setTimeout(() => {
var diff = process.hrtime(time);
// expecting [ 1, 2476940 ]
// actual [ 16265, 285396415 ]
console.log(`Benchmark took ${diff[0] * NS_PER_SEC + diff[1]} nanoseconds`);
}, 1000);
If a program in ShadowNode is restarted so many times without restarting OS, the tmp would have too much iotjs.* dump files.
Reported by @lolBig
Use Electron to wrap https://samsung.github.io/iotjscode/ to release the first version of debugger :)
rt
child process exit|close|disconnect event is not fire, in fact the child process does not exit
var url = require('url')
url.parse('https://rokid.com/packages/driver-ssdp/latest?env=rc&sn=0302041802000468', true)
always return { "rss": 0, "heapTotal": 0, "heapUsed": 0, "external": 0 }
The current setPrototypeOf
implementation are little wrong from standard, and the __proto__
is quite normal property to be used in Node.js modules :)
The following are example to reproduce:
var foo = {};
var bar = {};
Object.setPrototypeOf(bar, foo);
foo.test = 10;
console.log(bar.test); // expect 10 but undefined
当连接一个不存在的interface时,应用会崩溃退出。
应该在回调中使用error参数传递错误信息。
console.time(label: string): void
and console.timeEnd(label: string): void
is not supported yet it is expected to be a stable api
With implementation of this feature, we could store line number and function names in snapshot.
send 37K utf8 message every 1s, server will receive an invalid utf8 message after a few moments
var WebSocketClient = require('websocket').client;
var client = new WebSocketClient();
client.on('connect', function (connection) {
console.log('WebSocket Client Connected');
connection.on('error', function (error) {
console.log('Connection Error: ' + error.toString());
});
connection.on('close', function () {
console.log('echo-protocol Connection Closed');
});
connection.on('message', function (message) {
if (message.type === 'utf8') {
console.log('Received: utf8 ' + message.utf8Data.length);
} else {
console.log('Received: binary ' + message.binaryData.byteLength);
message.binaryData.toString();
}
});
function sendNumber() {
var number = Math.round(Math.random() * 0xFFFFFF);
for (var i = 0; i < 5000; ++i) {
number += Math.round(Math.random() * 0xFFFFFF).toString();
}
connection.sendUTF(number);
}
setInterval(() => {
sendNumber()
}, 1000)
});
setInterval(() => { }, 10000)
client.connect('ws://localhost:8080/', 'echo-protocol')
This compiling should move on Travis CI :)
TLSSocket 'close' event would trigger twice when the other end of the socket close initiatively
const/let
we should check packet size is enough when parse frame payload to prevent read/write out of range.
The TLS module has been released, refactor the https module by TLS, then we could remove the libcurl and openssl dependencies absolutely :)
This is for common Linux build :)
Record A at https://github.com/Rokid/ShadowNode/blob/master/src/modules/iotjs_module_tls.c#L107.
And run the following:
var https = require('https');
setInterval(() => {
https.get('https://www.google.com', () => false);
}, 5000);
And the Record A won't get called anyway.
rt
Currently only supports the following platform:
Download simpleperf, 32-bit version is available at here.
Then run the following commands to get report:
$ simpleperf record -g \
-p <your process pid> \
--duration 10 # the sample recording duration, 10 means 10 seconds
recommend set the duration to 30s.
When you gets the above commands finished, you would get the file data.perf
under your working directory.
Just run:
simpleperf report --dsos <your libiotjs.so> -n -g
Then you would get the following reports:
Cmdline: /data/simpleperf record -p 25021 --duration 30 -g
Arch: arm64
Event: cpu-cycles (type 0, config 0)
Samples: 408
Error Callchains: 1, 0.245098%
Event count: 132030003
Children Self Command Pid Tid Shared Object Symbol
36.82% 36.82% iotjs 25021 25021 /usr/lib/libiotjs.so jmem_heap_alloc_block_internal
36.82% 0.00% iotjs 25021 25021 /usr/lib/libiotjs.so jmem_heap_gc_and_alloc_block
|
-- jmem_heap_gc_and_alloc_block
|
-- jmem_heap_alloc_block_internal
19.65% 13.81% iotjs 25021 25021 /usr/lib/libiotjs.so ecma_gc_run
|
-- ecma_gc_run
|
|--41.27%-- ecma_gc_run
|
|--12.78%-- jmem_heap_free_block
|
|--1.60%-- ecma_gc_get_object_next.isra.4
|
|--1.58%-- jmem_decompress_pointer
|
--1.50%-- @plt
8.88% 8.88% iotjs 25021 25021 /usr/lib/libiotjs.so @plt
8.24% 2.43% iotjs 25021 25021 /usr/lib/libiotjs.so ecma_gc_mark
|
-- ecma_gc_mark
|
|--22.78%-- ecma_gc_set_object_visited.isra.2
|
|--20.82%-- ecma_gc_mark
|
|--17.72%-- ecma_gc_mark_property
|
|--7.67%-- @plt
|
|--2.57%-- jmem_decompress_pointer
|
|--2.56%-- ecma_get_property_list
|
--2.56%-- ecma_get_lex_env_type
6.13% 6.13% iotjs 25021 25021 /usr/lib/libiotjs.so jmem_heap_free_block
3.75% 2.21% iotjs 25021 25021 /usr/lib/libiotjs.so vm_loop
This task includes the following 2 parts:
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.