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AgeCommit message (Collapse)Author
2016-02-22Rename `PathMatcher::isMatching` to `PathMatcher::is_matching`Adrian Kummerlaender
Purely cosmetic change to match the overall naming scheme.
2016-02-20Interpose `open` library functionAdrian Kummerlaender
`open` is not as side effect free as I had imagined - i.e. if the flag `O_TRUNC` is passed it truncates the file contents alongside opening the file descriptor. In practice this is done by _emacs_ prior to writing the new file content and as such needs to be intercepted so we can start tracking the file before it is changed. Interposing `open` required some changes to make the library work without including `fcntl.h`. This header not only defines some of the flags we require to check if a library call actually is able to change files but also defines the `open` library function. While implementing this change I noticed that the function interpositions implemented in C++ actually need to be declared as `external "C"` so their names do not get wrangled during compilation. I suspect that this was previously implicitly done for e.g. `mmap` and `write` by the included C standard library headers. However this did not work for `open` which is why all function interpositions are now explicitly declared external. End result: _emacs_ file changes are now tracked correctly.
2016-02-17Separate static allocator from payload function interpositionsAdrian Kummerlaender