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15 lines
648 B
Markdown
15 lines
648 B
Markdown
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title: Memory buffers
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---
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Each connection has a send and receive buffer, `struct mg_connection::send_mbuf`
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and `struct mg_connection::recv_mbuf` respectively. When data arrives,
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Mongoose appends received data to the `recv_mbuf` and triggers an `MG_EV_RECV`
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event. The user may send data back by calling one of the output functions, like
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`mg_send()` or `mg_printf()`. Output functions append data to the `send_mbuf`.
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When Mongoose successfully writes data to the socket, it discards data from
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`struct mg_connection::send_mbuf` and sends an `MG_EV_SEND` event. When the connection
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is closed, an `MG_EV_CLOSE` event is sent.
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![](media/mbuf.png)
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