58 lines
1.6 KiB
Nim
58 lines
1.6 KiB
Nim
# Nim-LibP2P
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# Copyright (c) 2023 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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## `Perf <https://github.com/libp2p/specs/blob/master/perf/perf.md>`_ protocol specification
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{.push raises: [].}
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import chronos, chronicles
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import stew/endians2
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import ./core, ../protocol, ../../stream/connection, ../../utility
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export chronicles, connection
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logScope:
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topics = "libp2p perf"
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type Perf* = ref object of LPProtocol
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proc new*(T: typedesc[Perf]): T {.public.} =
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var p = T()
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proc handle(conn: Connection, proto: string) {.async.} =
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var bytesRead = 0
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try:
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trace "Received benchmark performance check", conn
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var
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sizeBuffer: array[8, byte]
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size: uint64
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await conn.readExactly(addr sizeBuffer[0], 8)
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size = uint64.fromBytesBE(sizeBuffer)
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var toReadBuffer: array[PerfSize, byte]
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try:
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while true:
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bytesRead += await conn.readOnce(addr toReadBuffer[0], PerfSize)
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except CatchableError as exc:
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discard
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var buf: array[PerfSize, byte]
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while size > 0:
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let toWrite = min(size, PerfSize)
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await conn.write(buf[0 ..< toWrite])
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size -= toWrite
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except CancelledError as exc:
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raise exc
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except CatchableError as exc:
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trace "exception in perf handler", description = exc.msg, conn
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await conn.close()
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p.handler = handle
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p.codec = PerfCodec
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return p
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