hare

commit 37b75e9ab17fa380f0b406bc664df1867893c25a
parent 10b50024da5e3871bdcc14e95c28d4f1768662bc
Author: Drew DeVault <sir@cmpwn.com>
Date:   Wed, 20 Oct 2021 11:08:50 +0200

cmd/iobus: initial commit

Signed-off-by: Drew DeVault <sir@cmpwn.com>

Diffstat:
A
cmd/iobus/main.ha
 | 
54
++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 54 insertions(+), 0 deletions(-)
diff --git a/cmd/iobus/main.ha b/cmd/iobus/main.ha
@@ -0,0 +1,54 @@
+use bufio;
+use fmt;
+use io;
+use iobus;
+use os;
+use strings;
+use unix::poll;
+use unix::poll::{event};
+
+export fn main() void = {
+	let bus = iobus::new()!;
+	defer iobus::destroy(bus);
+
+	const pollfd = [
+		poll::pollfd {
+			fd = os::stdin_file,
+			events = event::POLLIN,
+			...
+		},
+		poll::pollfd {
+			fd = iobus::busfile(bus),
+			events = event::POLLIN,
+			...
+		},
+	];
+	fmt::error("> ")!;
+
+	for (true) {
+		let events = poll::poll(pollfd, poll::INDEF)!;
+		if (pollfd[0].revents & event::POLLIN > 0) {
+			if (!readcmd(bus)) {
+				fmt::errorln("exit")!;
+				break;
+			};
+		};
+		if (pollfd[1].revents & event::POLLIN > 0) {
+			void; // TODO
+		};
+	};
+};
+
+fn readcmd(bus: *iobus::bus) bool = {
+	const line = match (bufio::scanline(os::stdin)!) {
+	case line: []u8 =>
+		yield strings::fromutf8(line);
+	case io::EOF =>
+		return false;
+	};
+	defer free(line);
+
+	fmt::errorfln("{}", line)!;
+	fmt::error("> ")!;
+	return true;
+};