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baconpaul authored and abique committed Nov 1, 2024
1 parent a3f0fdb commit 6f9e374
Showing 1 changed file with 8 additions and 6 deletions.
14 changes: 8 additions & 6 deletions include/clap/events.h
Original file line number Diff line number Diff line change
Expand Up @@ -302,14 +302,16 @@ typedef struct clap_event_midi {
// call in which the event is delivered or (from plugin->host) only the
// duration of a try_push call.
//
// Since `clap_output_events.try_push` requires you to make a copy of
// an event, host implementers receiving sysex messages from plugin need
// Since `clap_output_events.try_push` requires hosts to make a copy of
// an event, host implementers receiving sysex messages from plugins need
// to take care to both copy the event (so header, size, etc...) but
// also allocate and memcpy the sysex pointer. Similarly plugins retaining
// the sysex outside the lifetime of a single process call must copy the
// sysex buffer to memory owned by the plugin.
// also memcpy the contents of the sysex pointer to host-owned memory, and
// not just copy the data pointer.
//
// As a result, the data structure pointed to by the sysex buffer
// Similarly plugins retaining the sysex outside the lifetime of a single
// process call must copy the sysex buffer to plugin-owned memory.
//
// As a consequence, the data structure pointed to by the sysex buffer
// must be contiguous and copyable with `memcpy` of `size` bytes.
typedef struct clap_event_midi_sysex {
clap_event_header_t header;
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