void MemoryPressureHandler::ReliefLogger::logMemoryUsageChange()
{
#if PLATFORM(WPE)
#define STRING_SPECIFICATION "%s"
#define MEMORYPRESSURE_LOG(...) LOG(MemoryPressure, __VA_ARGS__)
#elif !RELEASE_LOG_DISABLED
#define STRING_SPECIFICATION "%{public}s"
#define MEMORYPRESSURE_LOG(...) RELEASE_LOG(__VA_ARGS__)
#else
#define STRING_SPECIFICATION "%s"
#define MEMORYPRESSURE_LOG(...) WTFLogAlways(__VA_ARGS__)
#endif
size_t currentMemory = platformMemoryUsage();
if (currentMemory == static_cast<size_t>(-1) || m_initialMemory == static_cast<size_t>(-1)) {
MEMORYPRESSURE_LOG("Memory pressure relief: " STRING_SPECIFICATION ": (Unable to get dirty memory information for process)", m_logString);
return;
}
long memoryDiff = currentMemory - m_initialMemory;
if (memoryDiff < 0)
MEMORYPRESSURE_LOG("Memory pressure relief: " STRING_SPECIFICATION ": -dirty %ld bytes (from %zu to %zu)", m_logString, (memoryDiff * -1), m_initialMemory, currentMemory);
else if (memoryDiff > 0)
MEMORYPRESSURE_LOG("Memory pressure relief: " STRING_SPECIFICATION ": +dirty %ld bytes (from %zu to %zu)", m_logString, memoryDiff, m_initialMemory, currentMemory);
else
MEMORYPRESSURE_LOG("Memory pressure relief: " STRING_SPECIFICATION ": =dirty (at %zu bytes)", m_logString, currentMemory);
}
void MemoryPressureHandler::ReliefLogger::platformLog()
{
size_t currentMemory = platformMemoryUsage();
if (currentMemory == static_cast<size_t>(-1) || m_initialMemory == static_cast<size_t>(-1)) {
LOG(MemoryPressure, "%s (Unable to get dirty memory information for process)", m_logString);
return;
}
ssize_t memoryDiff = currentMemory - m_initialMemory;
if (memoryDiff < 0)
LOG(MemoryPressure, "Pressure relief: %s: -dirty %lu bytes (from %lu to %lu)", m_logString, static_cast<unsigned long>(memoryDiff * -1), static_cast<unsigned long>(m_initialMemory), static_cast<unsigned long>(currentMemory));
else if (memoryDiff > 0)
LOG(MemoryPressure, "Pressure relief: %s: +dirty %lu bytes (from %lu to %lu)", m_logString, static_cast<unsigned long>(memoryDiff), static_cast<unsigned long>(m_initialMemory), static_cast<unsigned long>(currentMemory));
else
LOG(MemoryPressure, "Pressure relief: %s: =dirty (at %lu bytes)", m_logString, static_cast<unsigned long>(currentMemory));
}