fix library_websocket after pull request 19064 (len is undefined) #19190
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
In pull request #19064 variable "len" was moved to WEBSOCKET_DEBUG define, but it's used later in the function:
HEAPU32[(WS.socketEvent+8)>>2] = len;
So in case if we compile emscripten without "WEBSOCKET_DEBUG" define - value of "len" is undefined and being saved as 0 into structure on HEAP. Those websocket functionality with messages stops working.
This change was verified on our local project.