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add api counter

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Chuck
2025-08-10 16:17:51 -05:00
parent eed64334e3
commit f8ebcffa08
3 changed files with 28 additions and 11 deletions
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13
web_interface_v2.py
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@@ -62,8 +62,17 @@ class DisplayMonitor:
try:
# Prefer service-provided snapshot if available (works when ledmatrix service is running)
if os.path.exists(snapshot_path):
with open(snapshot_path, 'rb') as f:
img_bytes = f.read()
# Read atomically by reopening; ignore partials by retrying once
img_bytes = None
for _ in range(2):
try:
with open(snapshot_path, 'rb') as f:
img_bytes = f.read()
break
except Exception:
socketio.sleep(0.02)
if not img_bytes:
raise RuntimeError('Snapshot read failed')
img_str = base64.b64encode(img_bytes).decode()
# If we can infer dimensions from display_manager, include them; else leave 0
width = display_manager.width if display_manager else 0