core::posix::Process Class Reference

The Process class models a process and possible operations on it. More...

#include <process.h>

Inheritance diagram for core::posix::Process:

Collaboration diagram for core::posix::Process:

Classes
struct	Private

Public Member Functions
	Process (pid_t pid)
	Creates a process instance wrapping an existing process.
virtual	~Process () noexcept
	Frees resources associated with the process.
virtual pid_t	pid () const
	Query the pid of the process.
virtual ProcessGroup	process_group_or_throw () const
	Queries the id of the process group this process belongs to.
virtual ProcessGroup	process_group (std::error_code &se) const noexcept(true)
	Queries the id of the process group this process belongs to.
Public Member Functions inherited from core::posix::Signalable
virtual void	send_signal_or_throw (Signal signal)
	Sends a signal to this signalable object.
virtual void	send_signal (Signal signal, std::error_code &e) noexcept(true)
	Sends a signal to this signalable object.

Static Public Member Functions
static Process	invalid ()
	Returns an invalid instance for testing purposes.

Additional Inherited Members
Protected Member Functions inherited from core::posix::Signalable
CORE_POSIX_DLL_LOCAL	Signalable (pid_t pid)

Detailed Description

The Process class models a process and possible operations on it.

The process class is implicitly shared.

Definition at line 44 of file process.h.

Constructor & Destructor Documentation

Process()

core::posix::Process::Process ( pid_t pid )

explicit

Creates a process instance wrapping an existing process.

Exceptions

Throw

std::system_error if pid is invalid, i.e., pid < 0.

Parameters

pid	The process identifier of the existing process.

Definition at line 47 of file process.cpp.

References pid(), and core::posix::Signalable::Signalable().

Referenced by invalid().

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~Process()

core::posix::Process::~Process ( )

virtualnoexcept

Frees resources associated with the process.

Definition at line 55 of file process.cpp.

Member Function Documentation

invalid()

Process core::posix::Process::invalid ( )

static

Returns an invalid instance for testing purposes.

Returns

An invalid instance.

Definition at line 38 of file process.cpp.

References Process().

Referenced by TEST(), and TEST().

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pid()

pid_t core::posix::Process::pid ( ) const

virtual

Query the pid of the process.

Returns

The pid of the process.

Definition at line 59 of file process.cpp.

Referenced by core::posix::ChildProcess::fork, core::posix::ChildProcess::Private::Private(), Process(), process_group(), process_group_or_throw(), TEST(), TEST(), TEST(), TEST(), core::posix::ChildProcess::vfork, and core::posix::ChildProcess::wait_for().

process_group()

ProcessGroup core::posix::Process::process_group ( std::error_code & se ) const

virtualnoexcept

Queries the id of the process group this process belongs to.

Returns

A tuple with the first element being the id of the process group this process belongs to and the second element a boolean flag indicating an error if true.

Definition at line 74 of file process.cpp.

References pid().

Referenced by TEST(), and TEST().

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process_group_or_throw()

ProcessGroup core::posix::Process::process_group_or_throw ( ) const

virtual

Queries the id of the process group this process belongs to.

Exceptions

std::system_error

in case of errors.

Returns

The id of the process group this process belongs to.

Definition at line 64 of file process.cpp.

References pid().

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The documentation for this class was generated from the following files:

• process.h
• process.cpp