From 455fbac64f101b05f7eaca89b84470569e4df3fd Mon Sep 17 00:00:00 2001 From: "Kartik K. Agaram" Date: Tue, 19 Jan 2016 23:18:03 -0800 Subject: 2576 - distinguish allocated addresses from others This is the one major refinement on the C programming model I'm planning to introduce in mu. Instead of Rust's menagerie of pointer types and static checking, I want to introduce just one new type, and use it to perform ref-counting at runtime. So far all we're doing is updating new's interface. The actual ref-counting implementation is next. One implication: I might sometimes need duplicate implementations for a recipe with allocated vs vanilla addresses of the same type. So far it seems I can get away with just always passing in allocated addresses; the situations when you want to pass an unallocated address to a recipe should be few and far between. --- channel.mu | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'channel.mu') diff --git a/channel.mu b/channel.mu index def7c08b..54486957 100644 --- a/channel.mu +++ b/channel.mu @@ -1,6 +1,6 @@ # example program: communicating between routines using channels -recipe producer chan:address:channel -> chan:address:channel [ +recipe producer chan:address:shared:channel -> chan:address:shared:channel [ # produce characters 1 to 5 on a channel local-scope load-ingredients @@ -12,19 +12,19 @@ recipe producer chan:address:channel -> chan:address:channel [ # other threads might get between these prints $print [produce: ], n, [ ] - chan:address:channel <- write chan, n + chan:address:shared:channel <- write chan, n n <- add n, 1 loop } ] -recipe consumer chan:address:channel -> chan:address:channel [ +recipe consumer chan:address:shared:channel -> chan:address:shared:channel [ # consume and print integers from a channel local-scope load-ingredients { # read an integer from the channel - n:character, chan:address:channel <- read chan + n:character, chan:address:shared:channel <- read chan # other threads might get between these prints $print [consume: ], n:character, [ ] @@ -34,7 +34,7 @@ recipe consumer chan:address:channel -> chan:address:channel [ recipe main [ local-scope - chan:address:channel <- new-channel 3 + chan:address:shared:channel <- new-channel 3 # create two background 'routines' that communicate by a channel routine1:number <- start-running producer, chan routine2:number <- start-running consumer, chan -- cgit 1.4.1-2-gfad0