To preserve behaviour, explicit polls are added:
- in caml_raise, to raise the right exception when as system
call is interrupted by a signal.
- in sigprocmask, to ensure that signals are handled as soon
as they are unmasked.
Fix Thread.sigmaks, by checking whether a signal is masked before handling it.
We use [sigprocmask] (if available) to check whether a signal is
blocked when the systhread library is not loaded. As soon as the
[Thread] module gets loaded, we use [pthread_sigmask] instead, and
redirect all the calls to [sigprocmask] to [pthread_sigmask]. Indeed,
the latter has unspecified behavior in a multi-threaded context
anyway. In practice, this should not change the semantics of
[Unix.sigprocmask] on Linux, since on this platform, [pthread_sigmask]
is actually an alias for [sigprocmask]. On MacOSX, the semantics will
change, since [sigprocmask] changes the masks of the whole process on
this platform.
Also, include [caml_pending_signals] in signals returned by
[Unix.sigpending]. Indeed, some signals might have been handled in the
POSIX sense by the C handler in the OCaml runtime, but not been
handled in the OCaml sense (for example, because they are blocked).
This commit un-reverts 1c82c481a, which has been reverted in
79eb572e4. The issues of the original commit are corrected in this commit.
We use [sigprocmask] (if available) to check whether a signal is blocked when
the systhread library is not loaded. When it gets loaded, we use
[pthread_sigmask] instead.
Also, include [caml_pending_signals] in signals returned by
[Unix.sigpending]. Indeed, some signals might have been handled in the
POSIX sense by the C handler in the OCaml runtime, but not been
handled in the OCaml sense (for example, because they are blocked).
* Don't use the compatibility macros, neither in the C stub code nor in the testsuite.
* Make sure compiler sources do not use deprecated C identifiers.
This is achieved by ensuring that the CAML_NAME_SPACE macro is defined
everytime a C source file is compiled, rather than being defined only
in a few places. Defining this macro guarantees that the compatibility.h
header (where these deprecated identifiers are defined) will not be
included.
Stephen Dolan
Jacques-Henri Jourdan
David Allsopp
Jacques-Henri Jourdan
ygrek
Sébastien Hinderer
Fabrice Le Fessant
Damien Doligez
Gabriel Scherer
Damien Doligez
Xavier Leroy