70 lines
2.6 KiB
Bash
Executable file
70 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
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# See LICENSE.md for license information.
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# SPDX-License-Identifier: MIT
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#
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# verify-win16-serial-fast.sh - the Win16 port's serial throughput and loss
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# gate. SERFAST (SERTEST at 115200, make/examples.mk) runs on Windows 3.11
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# under DOSBox with COM1 a nullmodem to the host peer
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# (scripts/lib/serialLoopPeer.py), and the KPCOMM driver every Win16 run gets
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# (win16Stage), which takes a COM port past 57600. After the banner and the
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# probe's echo the peer streams STREAM_BYTES bytes through SERTEST's echo, a
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# window at a time, and every one must come back once and in order, at no
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# less than three quarters of what 115200 baud carries. The rate was measured
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# once by hand when KPCOMM came in (11485 bytes a second echoed); this keeps
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# it, and its loss, under test.
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#
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# Usage: scripts/verify-win16-serial-fast.sh
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# Env: WIN16_SERIAL_PORT the nullmodem's TCP port (default 6805)
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# Exit: 0 PASS, 1 FAIL, 2 SKIP
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# Requires: Windows on DOSBox (install.sh install emulator:win16), python3;
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# the win16 toolchain (it builds SERFAST.EXE, make win16-serfast).
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set -uo pipefail
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repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
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source "$repo/scripts/lib/joeyEnv.sh"
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source "$repo/scripts/lib/win16Gate.sh"
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label=verify-win16-serial-fast
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win16Need
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make -s -f "$repo/make/win16.mk" win16-serfast || {
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echo "$label: FAIL - building SERFAST.EXE failed" >&2
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exit 1
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}
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program=$(find "$repo/build/win16/test" -name SERFAST.EXE | head -1)
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[ -f "$program" ] || { echo "$label: FAIL - no SERFAST.EXE after the build" >&2; exit 1; }
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port="${WIN16_SERIAL_PORT:-6805}"
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baud=115200
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streamBytes=16384
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# The peer's budget: Windows' boot, the banner and the echo, then the stream.
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wall=120
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work=$(mktemp -d -t joeylib-win16-serial-fast.XXXXXX)
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peerPid=""
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cleanup() {
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joeyStop "$peerPid"
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win16Stop
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rm -rf "$work"
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}
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trap cleanup EXIT
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python3 "$repo/scripts/lib/serialLoopPeer.py" tcp-server "$port" "$wall" --stream "$streamBytes" --rate "$baud" > "$work/peer.log" 2>&1 &
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peerPid=$!
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sleep 1
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mkdir -p "$work/program"
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cp "$program" "$work/program/SERFAST.EXE"
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win16Stage "$work" "$work/program" SERFAST.EXE
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# transparent:1 -- the bytes alone, no modem lines in the stream.
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WIN16_DOSBOX_ARGS=(--set "serial1=nullmodem server:127.0.0.1 port:$port transparent:1")
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win16Start "$work"
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wait "$peerPid"
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rc=$?
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peerPid=""
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cat "$work/peer.log"
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if [ "$rc" -eq 0 ]; then
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echo "$label: PASS ($streamBytes bytes through COM1 at $baud baud and back, none lost)"
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else
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echo "$label: FAIL" >&2
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fi
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exit "$rc"
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