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cleanup code techniques
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| int main(int argc, char **argv) { |
|---|
| struct SoundIo *soundio = soundio_create(); |
| if (!soundio) { |
| fprintf(stderr, "out of memory\n"); |
| return 1; |
| } |
| int err; |
| if ((err = soundio_connect(soundio))) { |
| fprintf(stderr, "unable to connect: %s\n", soundio_strerror(err)); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| soundio_flush_events(soundio); |
| int default_output_index = soundio_default_output_device_index(soundio); |
| if (default_output_index < 0) { |
| fprintf(stderr, "No output device\n"); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| struct SoundIoDevice *device = soundio_get_output_device(soundio, default_output_index); |
| if (!device) { |
| fprintf(stderr, "out of memory\n"); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| struct SoundIoOutStream *outstream = soundio_outstream_create(device); |
| if (!outstream) { |
| fprintf(stderr, "out of memory\n"); |
| soundio_device_unref(device); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| outstream->format = SoundIoFormatFloat32NE; |
| outstream->write_callback = write_callback; |
| if ((err = soundio_outstream_open(outstream))) { |
| fprintf(stderr, "unable to open device: %s", soundio_strerror(err)); |
| soundio_outstream_destroy(outstream); |
| soundio_device_unref(device); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| if ((err = soundio_outstream_start(outstream))) { |
| fprintf(stderr, "unable to start device: %s\n", soundio_strerror(err)); |
| soundio_outstream_destroy(outstream); |
| soundio_device_unref(device); |
| soundio_destroy(soundio); |
| return 1; |
| } |
| for (;;) soundio_wait_events(soundio); |
| } |
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| int main(int argc, char **argv) { |
|---|
| struct SoundIo *soundio = NULL; |
| struct SoundIoOutStream *outstream = NULL; |
| struct SoundIoDevice *device = NULL; |
| int err; |
| soundio = soundio_create(); |
| if (!soundio) { |
| err = SoundIoErrorNoMem; |
| goto cleanup; |
| } |
| if ((err = soundio_connect(soundio))) { |
| goto cleanup; |
| } |
| soundio_flush_events(soundio); |
| int default_output_index = soundio_default_output_device_index(soundio); |
| if (default_output_index < 0) { |
| err = SoundIoErrorNoSuchDevice; |
| goto cleanup; |
| } |
| device = soundio_get_output_device(soundio, default_output_index); |
| if (!device) { |
| goto cleanup; |
| } |
| outstream = soundio_outstream_create(device); |
| if (!outstream) { |
| err = SoundIoErrorNoMem; |
| goto cleanup; |
| } |
| outstream->format = SoundIoFormatFloat32NE; |
| outstream->write_callback = write_callback; |
| if ((err = soundio_outstream_open(outstream))) { |
| goto cleanup; |
| } |
| if ((err = soundio_outstream_start(outstream))) { |
| goto cleanup; |
| } |
| for (;;) soundio_wait_events(soundio); |
| cleanup: |
| fprintf(stderr, "error: %s\n", soundio_strerror(err)); |
| if (outstream) soundio_outstream_destroy(outstream); |
| if (device) soundio_device_unref(device); |
| if (soundio) soundio_destroy(soundio); |
| return 1; |
| } |
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| pub fn main() !void { |
|---|
| const soundio = c.soundio_create() orelse return error.OutOfMemory; |
| defer c.soundio_destroy(soundio); |
| try sio_err(c.soundio_connect(soundio)); |
| c.soundio_flush_events(soundio); |
| const default_output_index = c.soundio_default_output_device_index(soundio); |
| if (default_output_index < 0) return error.NoOutputDevice; |
| const device = c.soundio_get_output_device(soundio, default_output_index) orelse return error.OutOfMemory; |
| defer c.soundio_device_unref(device); |
| const outstream = c.soundio_outstream_create(device) orelse return error.OutOfMemory; |
| defer c.soundio_outstream_destroy(outstream); |
| outstream.format = c.SoundIoFormatFloat32NE; |
| outstream.write_callback = write_callback; |
| try sio_err(c.soundio_outstream_open(outstream)); |
| try sio_err(c.soundio_outstream_start(outstream)); |
| while (true) c.soundio_wait_events(soundio); |
| } |