[LINUX/BASE] Fixed mmap usage and (re)-implemented most parts of memory_posix.cc #2230
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Outdated suggestions cannot be applied.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.
As the title says. Previously the MapFileView function did not take into account the handle argument, as it used the MAP_ANONYMOUS and the MAP_PRIVATE flags.
Additionally, AllocFixed used mmap and DeallocFixed used munmap always, with the MAP_FIXED flag. This was not ideal for several reasons:
For more information regarding mmap, see:
https://man7.org/linux/man-pages/man2/mmap.2.html