Check-in [eadd78dd7f]

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Overview
Comment:Correction from Christian Werner
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SHA3-256: eadd78dd7f042520bef208785e726702a585f990f2ed49be522e4c00ab37d092
User & Date: dkf 2018-06-22 14:18:11.355
Context
2018-06-25
20:41
New TIP: 512 check-in: c348a9d6eb user: jan.nijtmans tags: trunk
2018-06-22
14:18
Correction from Christian Werner check-in: eadd78dd7f user: dkf tags: trunk
2018-06-20
12:20
Added TIP 511 for Christian Werner, who is having problems with his fossil login check-in: 063fc0cf1c user: dkf tags: trunk
Changes
Unified Diff Ignore Whitespace Patch
Changes to tip/511.md.
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that thread-specific `Tcl_AsyncHandlers` are directed to interrupt the
owning target thread of the `Tcl_AsyncHandler`.

# Related Bugs

Bug #f4f44174 demonstrates a deadlock issue with a script based on TclX
observed with the Tcl 8.6 `select()`-based notifier. It is caused by the
`posix_mutex_*()` functions not supporting reentrant locking by default and
not being async-signal-safe.

# Implementation

Currently, there's a fork/proof of concept available in
https://www.androwish.org/index.html/info/40790af1e8e4ec9f based
on the Tcl 8.6 `select()` notifier.








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that thread-specific `Tcl_AsyncHandlers` are directed to interrupt the
owning target thread of the `Tcl_AsyncHandler`.

# Related Bugs

Bug #f4f44174 demonstrates a deadlock issue with a script based on TclX
observed with the Tcl 8.6 `select()`-based notifier. It is caused by the
`pthread_mutex_*()` functions not supporting reentrant locking by default and
not being async-signal-safe.

# Implementation

Currently, there's a fork/proof of concept available in
https://www.androwish.org/index.html/info/40790af1e8e4ec9f based
on the Tcl 8.6 `select()` notifier.
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