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I2C: Provide byte[] JNI interfaces.

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This avoids a direct byte buffer allocation on every read/write/transaction
on the byte[] variants.

Changes HAL I2C interfaces to use const for dataToSend.
This commit is contained in:
Peter Johnson
2017-11-15 21:41:58 -08:00
parent 6307d41002
commit 9021b37fd2
8 changed files with 161 additions and 58 deletions
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5
hal/src/main/native/sim/MockData/I2CData.cpp
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@@ -97,10 +97,11 @@ void I2CData::CancelWriteCallback(int32_t uid) {
m_writeCallbacks = CancelCallback(m_writeCallbacks, uid);
}
void I2CData::Write(int32_t deviceAddress, uint8_t* dataToSend,
void I2CData::Write(int32_t deviceAddress, const uint8_t* dataToSend,
int32_t sendSize) {
std::lock_guard<wpi::mutex> lock(m_dataMutex);
InvokeCallback(m_writeCallbacks, "Write", dataToSend, sendSize);
InvokeCallback(m_writeCallbacks, "Write", const_cast<uint8_t*>(dataToSend),
sendSize);
}
void I2CData::Read(int32_t deviceAddress, uint8_t* buffer, int32_t count) {
std::lock_guard<wpi::mutex> lock(m_dataMutex);