diff options
Diffstat (limited to 'src/libs/engine/EventSink.cpp')
| -rw-r--r-- | src/libs/engine/EventSink.cpp | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/libs/engine/EventSink.cpp b/src/libs/engine/EventSink.cpp index 441e7aac..7fc7b157 100644 --- a/src/libs/engine/EventSink.cpp +++ b/src/libs/engine/EventSink.cpp @@ -24,7 +24,7 @@ using namespace std; namespace Ingen { - +#if 0 void EventSink::control_change(Port* port, FrameTime time, float val) { @@ -32,12 +32,42 @@ EventSink::control_change(Port* port, FrameTime time, float val) SendPortValueEvent ev(_engine, time, port, false, 0, val); _events.write(sizeof(ev), (uchar*)&ev); } - +#endif + +/** \a size is not size_t because an event will never be even remotely close + * to UINT32_MAX in size, so uint32_t saves wasted space on 64-bit. + */ +bool +EventSink::write(uint32_t size, const Event* ev) +{ + if (size > _events.write_space()) + return false; + _events.write(sizeof(uint32_t), (uint8_t*)&size); + _events.write(size, (uint8_t*)ev); + + return true; +} + + +/** Read the next event into event_buffer. + * + * \a event_buffer can be casted to Event* and virtual methods called. + */ bool -EventSink::read_control_change(SendPortValueEvent& ev) +EventSink::read(uint32_t event_buffer_size, uint8_t* event_buffer) { - return _events.full_read(sizeof(SendPortValueEvent), (uchar*)&ev); + uint32_t read_size; + bool success = _events.full_read(sizeof(uint32_t), (uint8_t*)&read_size); + if (!success) + return false; + + assert(read_size <= event_buffer_size); + + if (read_size > 0) + return _events.full_read(read_size, event_buffer); + else + return false; } |