fix(InstanceContext): Don't use uintptr for Data #94
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Previously an uintptr to user data was passed across the CGo FFI which would become invalid if any stack frame occurred. This commit avoids this by never passing any pointers across the CGo FFI. A registry map is used instead to keep Go data on the Go side, and only an int index into the map is passed across to the C side. fix wasmerio#93 re wasmerio#44 wasmerio#85 wasmerio#83
Hywan
added
🐞 bug
Hywan
approved these changes
Dec 6, 2019
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Previously an uintptr to user data was passed across the CGo FFI which
would become invalid if any stack frame occurred. This commit avoids
this by never passing any pointers across the CGo FFI. A registry map is
used instead to keep Go data on the Go side, and only an int index into
the map is passed across to the C side.
fix #93
re #44 #85 #83