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Diffstat (limited to 'libpthread/signal/TODO')
| -rw-r--r-- | libpthread/signal/TODO | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/libpthread/signal/TODO b/libpthread/signal/TODO deleted file mode 100644 index 1148abb3..00000000 --- a/libpthread/signal/TODO +++ /dev/null @@ -1,29 +0,0 @@ -Unimplemented Functionality ---------------------------- - -We don't support interruptible functions. That is, if a signal is -delivered when a thread is in e.g. the write system call, then the -write function should be interrupted and return EINTR when the signal -handler is finished. To realize this behavior, we could have a thread -local interruptible flag and a setjmp buffer. A function that is -interruptible would fill the jump buffer and set the interruptible -flag. If a signal comes in and the interruptible flag is set, rather -than resuming the thread, we longjmp to the buffer. - -If a signal action has set the SA_SIGINFO, the third argument must be -a pointer to a ucontext describing the thread's interrupted state; -this implementation passes NULL. This isn't as bad as it sounds as -the the ucontext family of functions are marked obsolete in SUSv3 with -the advisory that any use of them should be replaced by the use of -pthread functionality (cf. makecontext rationale). - -stop and continue signals are not implemented (as we need to stop all -threads, this requires being in bed with libpthread). - -Implementation is not yet cancellation-safe. - -There are not even stubs for sighold, sigingore, sigpause, sigrelse, -however, according to posix: "Use of any of these functions is -unspecified in a multi-threaded process." - -Implement sigtimedwait, sigqueue.
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