loggingcentral.h File Reference

Detailed Description

Date

Mar 8, 2015

Author

Andrey Belomutskiy, (c) 2012-2020

Definition in file loggingcentral.h.

Data Structures
struct	LogLineBuffer
class	LogBuffer< TBufferSize >

Namespaces
namespace	priv

Functions
void	startLoggingProcessor ()
const char *	swapOutputBuffers (size_t *actualOutputBufferSize)
void	priv::efiPrintfInternal (const char *format,...)
void	scheduleLogging (Logging *logging)

Function Documentation

scheduleLogging()

void scheduleLogging

(

Logging *

logging

)

This is the legacy function to copy the contents of a local Logging object in to the output buffer

This method appends the content of specified thread-local logger into the global buffer of logging content.

This is a legacy function, most normal logging should use efiPrintf

Definition at line 237 of file loggingcentral.cpp.

                                       {
#if (EFI_PROD_CODE || EFI_SIMULATOR) && EFI_TEXT_LOGGING
    // Lock the buffer mutex - inhibit buffer swaps while writing
    {
        chibios_rt::MutexLocker lock(logBufferMutex);
 
        writeBuffer->writeLogger(logging);
    }
 
    // Reset the logging now that it's been written out
    logging->reset();
#endif
}

Referenced by printHistogram(), WaveChart::publish(), and updateDevConsoleState().

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startLoggingProcessor()

void startLoggingProcessor

(

)

Definition at line 159 of file loggingcentral.cpp.

                             {
    // Push all buffers in to the free queue
    for (size_t i = 0; i < lineBufferCount; i++) {
        freeBuffers.post(&lineBuffers[i], TIME_INFINITE);
    }
 
    // Start processing used buffers
    lbf.start();
}

Referenced by runRusEfi().

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swapOutputBuffers()

const char * swapOutputBuffers

(

size_t *

actualOutputBufferSize

)

Actual communication layer invokes this method when it's ready to send some data out

Returns

pointer to the buffer which should be print to console

Definition at line 93 of file loggingcentral.cpp.

                                                              {
    {
        chibios_rt::MutexLocker lock(logBufferMutex);
 
        // Swap buffers under lock
        auto temp = writeBuffer;
        writeBuffer = readBuffer;
        readBuffer = temp;
 
        // Reset the front buffer - it's now empty
        writeBuffer->reset();
    }
 
    *actualOutputBufferSize = readBuffer->length();
#if EFI_ENABLE_ASSERTS
    size_t expectedOutputSize = std::strlen(readBuffer->get());
 
    // Check that the actual length of the buffer matches the expected length of how much we thought we wrote
    if (*actualOutputBufferSize != expectedOutputSize) {
        firmwareError(ObdCode::ERROR_LOGGING_SIZE_CALC, "lsize mismatch %d vs strlen %d", *actualOutputBufferSize, expectedOutputSize);
 
        return nullptr;
    }
#endif /* EFI_ENABLE_ASSERTS */
    return readBuffer->get();
}

Referenced by handleGetText().

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