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Generalize StreamOutput a bit.

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This commit is contained in:
Jared Boone 2016-10-04 22:17:27 -07:00
parent a5793b8b9d
commit 2433ea30ad
1 changed files with 15 additions and 9 deletions
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24
firmware/application/capture_thread.cpp
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@ -30,19 +30,25 @@ public:
StreamOutput(CaptureConfig* const config);
~StreamOutput();
size_t available() {
return fifo_buffers_full->len();
StreamBuffer* get_empty() {
StreamBuffer* p { nullptr };
fifo_buffers_empty->out(p);
return p;
}
StreamBuffer* get_buffer() {
bool put_empty(StreamBuffer* const p) {
p->empty();
return fifo_buffers_empty->in(p);
}
StreamBuffer* get_full() {
StreamBuffer* p { nullptr };
fifo_buffers_full->out(p);
return p;
}
bool release_buffer(StreamBuffer* const p) {
p->empty();
return fifo_buffers_empty->in(p);
bool put_full(StreamBuffer* const p) {
return fifo_buffers_full->in(p);
}
static FIFO<StreamBuffer*>* fifo_buffers_empty;
@ -126,13 +132,13 @@ Optional<File::Error> CaptureThread::run() {
StreamOutput stream { &config };
while( !chThdShouldTerminate() ) {
if( stream.available() ) {
auto buffer = stream.get_buffer();
auto buffer = stream.get_full();
if( buffer ) {
auto write_result = writer->write(buffer->data(), buffer->size());
if( write_result.is_error() ) {
return write_result.error();
}
stream.release_buffer(buffer);
stream.put_empty(buffer);
} else {
chEvtWaitAny(event_mask_loop_wake);
}