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

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prevents concurrent presets.json writes from doSaveState() and savePreset()
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Frank
2025-12-29 20:48:07 +01:00
parent 6247ee066d
commit 2a56f9b658
3 changed files with 27 additions and 4 deletions
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wled00/wled.h
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@@ -7,7 +7,7 @@
*/
// version code in format yymmddb (b = daily build)
#define VERSION 2512291
#define VERSION 2512292
// WLEDMM - you can check for this define in usermods, to only enabled WLEDMM specific code in the "right" fork. Its not defined in AC WLED.
#define _MoonModules_WLED_
@@ -771,6 +771,7 @@ WLED_GLOBAL volatile bool OTAisRunning _INIT(false); // WLEDMM temporaril
WLED_GLOBAL SemaphoreHandle_t busDrawMux _INIT(nullptr);
WLED_GLOBAL SemaphoreHandle_t segmentMux _INIT(nullptr);
WLED_GLOBAL SemaphoreHandle_t jsonBufferLockMutex _INIT(nullptr);
WLED_GLOBAL SemaphoreHandle_t presetFileMux _INIT(nullptr); // Protects presets.json file writes
#define esp32SemTake(mux,timeout) xSemaphoreTakeRecursive(mux, pdMS_TO_TICKS(timeout)) // convenience macro that expands to xSemaphoreTakeRecursive - timeout is in milliseconds
#define esp32SemGive(mux) xSemaphoreGiveRecursive(mux) // convenience macro that expands to xSemaphoreGiveRecursive
#define WLED_create_spinlock(theSname) static portMUX_TYPE theSname = portMUX_INITIALIZER_UNLOCKED