67 lines
1.4 KiB
C++
67 lines
1.4 KiB
C++
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#include "debug.h"
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#include "SystemTimeSource.h"
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SystemTimeSource::SystemTimeSource()
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: BMediaNode("System Clock"),
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BTimeSource(),
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fControlThread(-1)
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{
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TRACE("SystemTimeSource::SystemTimeSource\n");
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}
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SystemTimeSource::~SystemTimeSource()
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{
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TRACE("SystemTimeSource::~SystemTimeSource enter\n");
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close_port(ControlPort());
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if (fControlThread != -1) {
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status_t err;
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wait_for_thread(fControlThread, &err);
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}
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TRACE("SystemTimeSource::~SystemTimeSource exit\n");
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}
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BMediaAddOn*
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SystemTimeSource::AddOn(int32 * internal_id) const
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{
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return NULL;
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}
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status_t
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SystemTimeSource::TimeSourceOp(const time_source_op_info & op, void * _reserved)
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{
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TRACE("######## SystemTimeSource::TimeSourceOp\n");
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bigtime_t real = RealTime();
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PublishTime(real, real, 1.0);
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return B_OK;
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}
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/* virtual */ void
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SystemTimeSource::NodeRegistered()
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{
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ASSERT(fControlThread == -1);
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fControlThread = spawn_thread(_ControlThreadStart, "System Clock control", 12, this);
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resume_thread(fControlThread);
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}
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int32
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SystemTimeSource::_ControlThreadStart(void *arg)
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{
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reinterpret_cast<SystemTimeSource *>(arg)->ControlThread();
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return 0;
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}
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void
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SystemTimeSource::ControlThread()
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{
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TRACE("SystemTimeSource::ControlThread() enter\n");
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status_t err;
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do {
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err = WaitForMessage(B_INFINITE_TIMEOUT);
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} while (err == B_OK || err == B_ERROR);
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TRACE("SystemTimeSource::ControlThread() exit\n");
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}
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