WLED/wled00/util.cpp

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#include "wled.h"
#include "fcn_declare.h"
#include "const.h"
//threading/network callback details: https://github.com/Aircoookie/WLED/pull/2336#discussion_r762276994
bool requestJSONBufferLock(uint8_t module)
{
unsigned long now = millis();
while (jsonBufferLock && millis()-now < 1000) delay(1); // wait for a second for buffer lock
if (millis()-now >= 1000) {
DEBUG_PRINT(F("ERROR: Locking JSON buffer failed! ("));
DEBUG_PRINT(jsonBufferLock);
DEBUG_PRINTLN(")");
return false; // waiting time-outed
}
jsonBufferLock = module ? module : 255;
fileDoc = &doc; // used for applying presets (presets.cpp)
doc.clear();
return true;
}
void releaseJSONBufferLock()
{
DEBUG_PRINT(F("JSON buffer released. ("));
DEBUG_PRINT(jsonBufferLock);
DEBUG_PRINTLN(")");
fileDoc = nullptr;
jsonBufferLock = 0;
}