Reduce TLS memory requirements for KOReader sync

Split heap gate into separate free-memory (50KB) and largest-block (20KB) thresholds based on field measurements. Enable wolfSSL single-precision ECC to use fixed 256-bit arrays instead of heap-allocated fast-math bignums, reducing TLS handshake memory footprint. Reclaim ~7KB by right-sizing ESP timer task stacks and move WiFi code out of IRAM to free ~25-30KB for heap. Add memory audit landmarks for font and EPUB allocations.
2026-07-14 14:53:41 -04:00
parent 02398c8a96
commit a86a644adc
16 changed files with 200 additions and 75 deletions
@@ -32,6 +32,7 @@ class SdCardFontManager {
  // Get name of currently loaded family (empty if none).
  const std::string& currentFamilyName() const { return loadedFamilyName_; };

+  // MEMFIX-PORT: font manager audit passthrough; portable
  // Sum of loaded fonts' resident heap (see SdCardFont::reportMemory).
  size_t reportMemory() const;