Fix GH-16769: php_pcntl_set_user_signal_infos aborts when a signal is a reference.

close GH-16772

Use "must not" instead of "cannot" wording

ext/pcntl: Use standard wording for ValueError

Use new helper function for "cannot be empty" ValueErrors

ext/pcntl adding Pcntl namespace for Qos class.

Close GH-14892

ext/pcntl: Added new function pcntl_waitid

to obtain status information pertaining termination, stop, and/or
continue events in one the caller's child processes.

close GH-14617

Trim trailing whitespace (#14721)

Preferably include from build dir (#13516)

* Include from build dir first

This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.

Preferably include from build dir (#13516)

* Include from build dir first

This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.

Before, out of tree builds would preferably include files from the src dir, as
the include path was defined as follows (ignoring includes from ext/ and sapi/) :

-I$(top_builddir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/main
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
-I$(top_builddir)/

As a result, an out of tree build would include configure artifacts such as
`main/php_config.h` from the src dir.

After this change, the include path is defined as follows:

-I$(top_builddir)/main
-I$(top_builddir)
-I$(top_srcdir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM

* Fix extension include path for out of tree builds

* Include config.h with the brackets form

`#include "config.h"` searches in the directory containing the including-file
before any other include path. This can include the wrong config.h when building
out of tree and a config.h exists in the source tree.

Using `#include <config.h>` uses exclusively the include path, and gives
priority to the build dir.

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Clean-up some more headers (#14416)

Remove unused headers (such as php_ini.h for extensions that don't define INI settings)
Use more specific headers when possible

ext/pcntl: Fix [-Wsign-compare] warnings

ext/pcntl: adding SIGTRAP handling for freebsd.

if a restricted file descriptor based syscall by the system had been attempted,
a SIGTRAP is raised with the syscall id.

close GH

ext/pcntl: adding SIGTRAP handling for freebsd.

if a restricted file descriptor based syscall by the system had been attempted,
a SIGTRAP is raised with the syscall id.

close GH-14266

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ext/pcntl: cpu affinity support for solaris/illumos. (#14199)

ext/pcntl: add pcntl_getcpu support for solaris.

using getcpuid having similar signature too.

close GH-14188

ext/pcntl: porting pcntl cpu affinity api to netbsd. (#14056)

ext/pcntl: pcntl_fork refining error handling. (#14021)

ext/pcntl: pcntl_getqos_class/pcntl_setqos_class addition.

Introducting macOs Quality Of Service through those two calls.
on macOs arm64/M*, there is no concept of individual cores, thus

ext/pcntl: pcntl_getqos_class/pcntl_setqos_class addition.

Introducting macOs Quality Of Service through those two calls.
on macOs arm64/M*, there is no concept of individual cores, thus
the old thread policy for cpu affinity does not work here.
Instead, the user can apply to the current process the level of
performance/energy consumption they wish from the highest
QosClass::UserInteractive to QosClass::Background.

Close GH-13945

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ext/pcntl: getpriority/setpriority `who` default value handling change. (#13911)

0 refers to the calling process, all across unixes, thus saving one
syscall.

ext/pcntl: adding pcntl_getcpu.

using sched_getcpu under the hood (Linux and FreeBSD).
Returns the current cpu id for the current process.
For Linux, we need to see beyond the sole p

ext/pcntl: adding pcntl_getcpu.

using sched_getcpu under the hood (Linux and FreeBSD).
Returns the current cpu id for the current process.
For Linux, we need to see beyond the sole presence of the symbol
to consider it.
Mostly useful, for now, in the cpu affinity context since
the os can migrate processes as it sees fits otherwise.

Clos GH-13908

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ext/pcntl: pcntl affinity improves EINVAL handling in both cases. (#13907)

also disable tests on travis.

ext/pcntl pcntl_signal_get_handler update.

The situation varies from platform to another, thus taking in
account the complexity of it.

Close GH-13902

ext/pcntl: cpu affinity api introduction.

For now, working on Linux, FreeBSD >= 13.x and DragonFlyBSD.
Handy wrapper to assign an array of cpu ids or to retrieve the cpu ids
assigned

ext/pcntl: cpu affinity api introduction.

For now, working on Linux, FreeBSD >= 13.x and DragonFlyBSD.
Handy wrapper to assign an array of cpu ids or to retrieve the cpu ids
assigned to a given process.

pcntl_setaffinity inserts valid unique cpu ids (within the range of available
cpus).

Close GH-13893

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ext/pcntl: pcnt_setns few nitpicks changes. (#13885)

ext/pcntl: adding pcntl_setns for Linux >= 5.3

allows a given process to join an existing Linux namespace, relatively
complementary to the existing pcntl_unshare.

Close GH-13878

ext/pcntl: pcntl_unshare minor error message clarification (for EINVAL). (#13872)

it is not necessarily a bad flag but can just be unsupported by the
current kernel.

Refactor pcntl_sigprocmask()/pcntl_sigwaitinfo()/pcntl_sigtimedwait() (#11860)