diff options
| author | Elliott Hughes <enh@google.com> | 2020-01-22 15:10:52 -0800 |
|---|---|---|
| committer | Elliott Hughes <enh@google.com> | 2020-01-22 15:10:52 -0800 |
| commit | b5a7741bb3250c2bcb93bee748512e90a9fd99b1 (patch) | |
| tree | 9dbf7b0c793877598392fdc9521ad8e0779f6bf0 /docs | |
| parent | 73e9f242ed07631798433df4e35f5f73443cb9f9 (diff) | |
Mention why we don't have pthread_cancel().
It's a somewhat frequently asked question.
Change-Id: I2ad88e8d79607e49a891eb2304e9be63494ad193
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/status.md | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/status.md b/docs/status.md index 547066882..fb88dd297 100644 --- a/docs/status.md +++ b/docs/status.md @@ -33,7 +33,11 @@ Missing functions are either obsolete or explicitly disallowed by SELinux: Missing functionality: * `<aio.h>` * `<wordexp.h>` - * Thread cancellation (`pthread_cancel`). + * Thread cancellation (`pthread_cancel`). Unlikely to ever be implemented + because of the difficulty and cost of implementing it, and the difficulty + of using it correctly. See + [This is why we can't have safe cancellation points](https://lwn.net/Articles/683118/) + for more about thread cancellation. * Robust mutexes Run `./libc/tools/check-symbols-glibc.py` in bionic/ for the current |