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Small clarifications and comment fixes

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This commit is contained in:
Gregor Reitzenstein 2020-05-10 15:48:16 +02:00
parent 7525fe49f6
commit 2c321d77b4
1 changed files with 9 additions and 6 deletions
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15
src/main.rs
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@ -172,7 +172,7 @@ fn main() -> Result<(), Error> {
// For each incoming connection start a new task to handle it
let handle_sockets = incoming.map(|socket| {
// incoming.next() is an error when the underlying `accept` call yielded an error
// incoming.next() returns an error when the underlying `accept` call yielded an error
// In POSIX those are protocol errors we can't really handle, so we just log the error
// and the move on
match socket {
@ -188,8 +188,7 @@ fn main() -> Result<(), Error> {
// Clone a log for potential error handling
let elog = log.clone();
// We handle the error using map_err, `let _` is used to quiet the compiler
// warning
// We handle the error using map_err
let f = api::handle_connection(log.clone(), socket)
.map_err(move |e| {
error!(log, "Error occured during protocol handling: {}", e);
@ -225,6 +224,8 @@ fn main() -> Result<(), Error> {
// Now actually check if a connection was opened or a signal recv'd
let mut combined = stream::select(handle_signals, handle_sockets);
// This is the basic main loop that drives execution
loop {
match combined.next().await {
// When the result says to continue, do exactly that
@ -237,9 +238,11 @@ fn main() -> Result<(), Error> {
// For now, just log the overload and keep going.
error!(loop_log, "Server overloaded");
}
// None should never be returned because it would mean all sockets were closed and
// we can not receive any further signals. Still, in that case shut down cleanly
// anyway, the only reason this could happen are some heavy bugs in the runtime
// When the result says to stop the server, do exactly that.
// Also catches a `None` from the stream; None should never be returned because it
// would mean all sockets were closed and we can not receive any further signals.
// Still, in that case shut down cleanly anyway, the only reason this could happen
// are some heavy bugs in the runtime
Some(LoopResult::Stop) | None => {
warn!(loop_log, "Stopping server");
break;