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Enable socket-api recvmsg() and sendmsg() (#1042)

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Implement socket-api `recvmsg()` and `sendmsg()` for wasm app,
add sample and update document.
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liang.he
2022-03-30 15:57:40 +08:00
committed by GitHub
parent 106974d915
commit 559a0502f1
7 changed files with 335 additions and 8 deletions
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38
samples/socket-api/README.md
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@ -1,5 +1,4 @@
"socket-api" sample introduction
================================
# "socket-api" sample introduction
This sample demonstrates how to use WAMR socket-api to develop wasm network applications.
Two wasm applications are provided: tcp-server and tcp-client, and this sample demonstrates
@ -19,26 +18,30 @@ cmake ..
make
```
The file `tcp_server.wasm`, `tcp_client.wasm` and `iwasm` will be created.
And also file `tcp_server` and `tcp_client` of native version are created.
`iwasm` and three Wasm modules, `tcp_server.wasm`, `tcp_client.wasm`, `send_recv.wasm`
will be generated. And their corresponding native version, `tcp_server`,
`tcp_client`, `send_recv` are generated too.
Note that iwasm is built with libc-wasi and lib-pthread enabled.
> Note that iwasm is built with libc-wasi and lib-pthread enabled.
## Run workload
Start the tcp server, which opens port 1234 and waits for clients to connect.
```bash
cd build
./iwasm --addr-pool=0.0.0.0/15 tcp_server.wasm
```
Start the tcp client, which connects the server and receives message.
```bash
cd build
./iwasm --addr-pool=127.0.0.1/15 tcp_client.wasm
```
The output of client is like:
```bash
[Client] Create socket
[Client] Connect socket
@ -54,4 +57,29 @@ Say Hi from the Server
[Client] BYE
```
`send_recv.wasm` contains a thread as a server and a thread as a client. They
send and receive data via 127.0.0.1:1234.
```bash
$ ./iwasm --addr-pool=127.0.0.1/0 ./send_recv.wasm
```
The output is:
```bash
Server is online ...
Client is running...
Start receiving.
Start sending.
Send 106 bytes successfully!
Receive 106 bytes successlly!
Data:
The stars shine down
It brings us light
Light comes down
To make us paths
It watches us
And mourns for us
```
Refer to [socket api document](../../doc/socket_api.md) for more details.