diff options
| author | Julian Blake Kongslie | 2022-10-15 14:12:31 -0700 |
|---|---|---|
| committer | Julian Blake Kongslie | 2022-10-15 14:12:31 -0700 |
| commit | ecf940e34b42f78f9651a73e8bcd0c6dc3c75cb5 (patch) | |
| tree | 36a290bf7a6ed585cf040964c8e7481f4df1d631 /infra/port.h | |
| parent | Move shared_bus into arbiter (diff) | |
| download | biggolf-ecf940e34b42f78f9651a73e8bcd0c6dc3c75cb5.tar.xz | |
Depend on external nanosim dependency.
Diffstat (limited to 'infra/port.h')
| -rw-r--r-- | infra/port.h | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/infra/port.h b/infra/port.h deleted file mode 100644 index 06a3aa5..0000000 --- a/infra/port.h +++ /dev/null | |||
| @@ -1,45 +0,0 @@ | |||
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include <cassert> | ||
| 4 | #include <optional> | ||
| 5 | #include <utility> | ||
| 6 | |||
| 7 | #include "infra/sim.h" | ||
| 8 | |||
| 9 | namespace infra { | ||
| 10 | template<typename T> struct port : public sim { | ||
| 11 | std::optional<T> consumer_side; | ||
| 12 | std::optional<T> producer_side; | ||
| 13 | |||
| 14 | bool can_read() { return consumer_side.has_value(); } | ||
| 15 | bool can_write() { return !producer_side.has_value(); } | ||
| 16 | |||
| 17 | T read() { | ||
| 18 | assert(can_read()); | ||
| 19 | auto x = std::move(*consumer_side); | ||
| 20 | consumer_side.reset(); | ||
| 21 | return x; | ||
| 22 | } | ||
| 23 | |||
| 24 | const T & peek() { | ||
| 25 | assert(can_read()); | ||
| 26 | return *consumer_side; | ||
| 27 | } | ||
| 28 | |||
| 29 | void discard() { | ||
| 30 | consumer_side.reset(); | ||
| 31 | } | ||
| 32 | |||
| 33 | void write(T &&x) { | ||
| 34 | assert(can_write()); | ||
| 35 | producer_side = std::move(x); | ||
| 36 | } | ||
| 37 | |||
| 38 | void unclock() { | ||
| 39 | if (!consumer_side && producer_side) { | ||
| 40 | consumer_side = std::move(*producer_side); | ||
| 41 | producer_side.reset(); | ||
| 42 | } | ||
| 43 | } | ||
| 44 | }; | ||
| 45 | } | ||
