Jan/WLED_MM_Infinity
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

fix presets.json corruption, part 2: mutex for presets file writing

Browse Source 
prevents concurrent presets.json writes from doSaveState() and savePreset()
This commit is contained in:
Frank
2025-12-29 20:48:07 +01:00
parent 6247ee066d
commit 2a56f9b658
3 changed files with 27 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
wled00/wled.cpp
View File

@@ -480,11 +480,14 @@ void WLED::setup()
busDrawMux = xSemaphoreCreateRecursiveMutex(); // WLEDMM prevent concurrent running of strip.show and strip.service
segmentMux = xSemaphoreCreateRecursiveMutex(); // WLEDMM prevent segment changes while effects are running
jsonBufferLockMutex = xSemaphoreCreateRecursiveMutex(); // WLEDMM prevent concurrent JSON buffer writing
if ((busDrawMux == nullptr) || (segmentMux == nullptr) || (jsonBufferLockMutex == nullptr))
presetFileMux = xSemaphoreCreateRecursiveMutex(); // WLEDMM prevent concurrent presets.json file writing
if ((busDrawMux == nullptr) || (segmentMux == nullptr) || (jsonBufferLockMutex == nullptr) || (presetFileMux == nullptr)) {
USER_PRINTLN(F("setup error: xSemaphoreCreateRecursiveMutex failed.")); // should never happen.
}
xSemaphoreGiveRecursive(busDrawMux); // init semaphores to initially allow drawing
xSemaphoreGiveRecursive(segmentMux);
xSemaphoreGiveRecursive(jsonBufferLockMutex);
xSemaphoreGiveRecursive(presetFileMux);
#endif
#ifdef ARDUINO_ARCH_ESP32