Commit 2c83a50a authored by Marko Mikulicic's avatar Marko Mikulicic Committed by Cesanta Bot

Document %.*Q

PUBLISHED_FROM=5dc567f8978d5414835f7a2338a78ae9eb683f55
parent 1c80fc28
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---
Mongoose is a multi-protocol networking library that implements non-blocking,
asyncronous IO and provides event-based API. It has three basic data
asyncronous IO and provides event-based APIs. It has three basic data
structures:
- `struct mg_mgr` is an event manager that holds all active connections
- `struct mg_connection` describes a connection
- `struct mbuf` describes data buffer (received or sent data)
Connections could be either *listening*, *outbound* or *inbound*. Outbound
connections are created by `mg_connect()` call. Listening connections are
created by `mg_bind()` call. Inbound connections are those accepted by a
listening connection. Each connection is described by `struct mg_connection`
Connections could be either *listening*, *outbound* or *inbound*. Outbound
connections are created by the `mg_connect()` call. Listening connections are
created by the `mg_bind()` call. Inbound connections are those accepted by a
listening connection. Each connection is described by the `struct mg_connection`
structure, which has a number of fields like socket, event handler function,
send/receive buffer, flags, et cetera.
send/receive buffer, flags, etc.
Mongoose usage pattern is to declare and initialize event manager, create
Mongoose's usage pattern is to declare and initialise event manager, create
connections and create an event loop by calling `mg_mgr_poll()` in a loop.
`mg_mgr_poll()` iterates over all sockets, accepts new connections, sends and
receives data, closes connections, and calls event handler functions for the
receives data, closes connections and calls event handler functions for the
respective events.
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title: Memory buffers
---
Each connection has send and receive buffer, `struct mg_connection::send_mbuf`
and `struct mg_connection::recv_mbuf` respectively. When data arrives,
Mongoose appends received data to the `recv_mbuf` and triggers `MG_EV_RECV`
event. User may send data back by calling one of the output functions, like
Each connection has a send and receive buffer, `struct mg_connection::send_mbuf`
and `struct mg_connection::recv_mbuf` respectively. When data arrives,
Mongoose appends received data to the `recv_mbuf` and triggers an `MG_EV_RECV`
event. The user may send data back by calling one of the output functions, like
`mg_send()` or `mg_printf()`. Output functions append data to the `send_mbuf`.
When Mongoose successfully writes data to the socket, it discards data from
`struct mg_connection::send_mbuf` and sends `MG_EV_SEND` event. When connection
is closed, `MG_EV_CLOSE` event is sent.
`struct mg_connection::send_mbuf` and sends an `MG_EV_SEND` event. When the connection
is closed, an `MG_EV_CLOSE` event is sent.
![](media/mbuf.png)
......@@ -3,16 +3,16 @@ title: Overview
---
Mongoose is a swiss army knife for embedded network programming.
It implements event-driven non-blocking API for TCP, UDP, HTTP,
WebSocket, CoAP, MQTT for both client and server mode.
It implements event-driven non-blocking APIs for TCP, UDP, HTTP,
WebSocket, CoAP, MQTT for client and server mode.
Features include:
- Cross-platform: works on Linux/UNIX, MacOS, QNX, eCos, Windows, Android,
iPhone, FreeRTOS (TI CC3200, ESP8266), etc
iPhone, FreeRTOS (TI CC3200, ESP8266) and more
- Single-threaded, asynchronous, non-blocking core with simple event-based API
- Native support for [PicoTCP embedded TCP/IP stack](http://www.picotcp.com),
[LWIP embedded TCP/IP stack](https://en.wikipedia.org/wiki/LwIP)
- Builtin protocols:
- Built-in protocols:
- plain TCP, plain UDP, SSL/TLS (over TCP, one-way or two-way)
- HTTP client and server
- WebSocket client and server
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......@@ -3,7 +3,7 @@ title: Usage Example
---
- Copy `mongoose.c` and `mongoose.h` to your build tree
- Write code that uses Mongoose API, e.g. in `my_app.c`
- Write code that uses the Mongoose API, e.g. in `my_app.c`
- Compile application: `$ cc my_app.c mongoose.c`
```c
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