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https://github.com/wpilibsuite/allwpilib
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f84018af5f
During shared library loading, a different libLLVM can be pulled in, causing llvm symbols from dependent libraries to resolve to that library instead of this one. This has been seen in the wild with the Mesa OpenGL implementation in JavaFX applications (see wpilibsuite/shuffleboard#361). This is clearly a very breaking change. For some level of backwards compatibility, a namespace alias from llvm to wpi is performed in the "llvm" headers. Unfortunately, forward declarations of llvm classes will still break, but compilers seem to generate clear error messages in those cases ("namespace alias 'llvm' not allowed here, assuming 'wpi'"). This change also moves all the wpiutil headers to a single "wpi" subdirectory from the previously split "llvm", "support", "tcpsockets", and "udpsockets". Shim headers will be added for backwards compatibility in a later commit.
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2015-2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#ifndef CSCORE_TELEMETRY_H_
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#define CSCORE_TELEMETRY_H_
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#include <wpi/SafeThread.h>
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#include "cscore_cpp.h"
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namespace cs {
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class SourceImpl;
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class Telemetry {
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friend class TelemetryTest;
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public:
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static Telemetry& GetInstance() {
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static Telemetry instance;
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return instance;
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}
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~Telemetry();
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void Start();
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void Stop();
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// User interface
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void SetPeriod(double seconds);
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double GetElapsedTime();
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int64_t GetValue(CS_Handle handle, CS_TelemetryKind kind, CS_Status* status);
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double GetAverageValue(CS_Handle handle, CS_TelemetryKind kind,
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CS_Status* status);
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// Telemetry events
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void RecordSourceBytes(const SourceImpl& source, int quantity);
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void RecordSourceFrames(const SourceImpl& source, int quantity);
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private:
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Telemetry();
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class Thread;
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wpi::SafeThreadOwner<Thread> m_owner;
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};
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} // namespace cs
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#endif // CSCORE_TELEMETRY_H_
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