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c api: added port handle getter #173

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c api: added port handle getter #173

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16 changes: 14 additions & 2 deletions examples/c_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,13 @@ void on_input_port_found(void* ctx, const libremidi_midi_in_port* port)
if (ret != 0)
return;

printf("input: %s\n", name);
uint64_t handle = -1;

ret = libremidi_midi_in_port_handle(port, &handle);
if (ret != 0)
return;

printf("input %d: %s\n", handle, name);
fflush(stdout);

enumerated_ports* e = (enumerated_ports*)ctx;
Expand All @@ -53,7 +59,13 @@ void on_output_port_found(void* ctx, const libremidi_midi_out_port* port)
if (ret != 0)
return;

printf("output: %s\n", name);
uint64_t handle = -1;

ret = libremidi_midi_out_port_handle(port, &handle);
if (ret != 0)
return;

printf("output %d: %s\n", handle, name);
fflush(stdout);

enumerated_ports* e = (enumerated_ports*)ctx;
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20 changes: 20 additions & 0 deletions include/libremidi/libremidi-c.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,16 @@ int libremidi_midi_in_port_name(const libremidi_midi_in_port* port, const char**
return 0;
}

int libremidi_midi_in_port_handle(const libremidi_midi_in_port* port, uint64_t* handle)
{
if (!port || !handle)
return -EINVAL;

auto& p = *reinterpret_cast<const libremidi::input_port*>(port);
*handle = static_cast<uint64_t>(p.port);
return 0;
}

int libremidi_midi_out_port_clone(
const libremidi_midi_out_port* port, libremidi_midi_out_port** dst)
{
Expand Down Expand Up @@ -152,6 +162,16 @@ int libremidi_midi_out_port_name(
return 0;
}

int libremidi_midi_out_port_handle(const libremidi_midi_out_port* port, uint64_t* handle)
{
if (!port || !handle)
return -EINVAL;

auto& p = *reinterpret_cast<const libremidi::output_port*>(port);
*handle = static_cast<uint64_t>(p.port);
return 0;
}

int libremidi_midi_observer_new(
const libremidi_observer_configuration* c, libremidi_api_configuration* api,
libremidi_midi_observer_handle** out)
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8 changes: 8 additions & 0 deletions include/libremidi/libremidi-c.h
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Expand Up @@ -198,6 +198,10 @@ LIBREMIDI_EXPORT
int libremidi_midi_in_port_name(
const libremidi_midi_in_port* port, const char** name, size_t* len);

LIBREMIDI_EXPORT
int libremidi_midi_in_port_handle(
const libremidi_midi_in_port* port, uint64_t* handle);

LIBREMIDI_EXPORT
int libremidi_midi_out_port_clone(
const libremidi_midi_out_port* port, libremidi_midi_out_port** dst);
Expand All @@ -209,6 +213,10 @@ LIBREMIDI_EXPORT
int libremidi_midi_out_port_name(
const libremidi_midi_out_port* port, const char** name, size_t* len);

LIBREMIDI_EXPORT
int libremidi_midi_out_port_handle(
const libremidi_midi_out_port* port, uint64_t* handle);

/// Observer API
LIBREMIDI_EXPORT
int libremidi_midi_observer_new(
Expand Down