engine::subprocess::ChildProcess Class Reference

#include <userver/engine/subprocess/child_process.hpp>

Detailed Description

Class that allows controlling child process; usually retrieved from engine::subprocess::ProcessStarter.

Definition at line 21 of file child_process.hpp.

Public Member Functions
	ChildProcess (ChildProcess &&) noexcept
ChildProcess &	operator= (ChildProcess &&) noexcept
	~ChildProcess ()
	Does not terminate the child process (just detaches from it).
int	GetPid () const
	Returns pid of the child process.
void	Wait ()
	Wait for the child process to terminate. Ignores cancellations of the current task.
template<typename Rep, typename Period>
bool	WaitFor (std::chrono::duration< Rep, Period > duration)
	Wait for the child process to terminate.
template<typename Clock, typename Duration>
bool	WaitUntil (std::chrono::time_point< Clock, Duration > until)
	Wait for the child process to terminate.
bool	WaitUntil (Deadline deadline)
ChildProcessStatus	Get ()
	Wait for the child process to terminate, ignoring cancellations.
void	SendSignal (int signum)
	Send a signal to the child process.

Member Function Documentation

Get()

ChildProcessStatus engine::subprocess::ChildProcess::Get ( )

nodiscard

Wait for the child process to terminate, ignoring cancellations.

Returns

ChildProcessStatus of finished subprocess

WaitFor()

template<typename Rep, typename Period>

bool engine::subprocess::ChildProcess::WaitFor ( std::chrono::duration< Rep, Period > duration )

inlinenodiscard

Wait for the child process to terminate.

Returns

false if this did not happen for the specified timeout duration or a task cancellation happened; true otherwise.

Definition at line 44 of file child_process.hpp.

WaitUntil() [1/2]

bool engine::subprocess::ChildProcess::WaitUntil ( Deadline deadline )

nodiscard

Wait for the child process to terminate. Returns if this did not happen until the specified Deadline has been reached.

WaitUntil() [2/2]

template<typename Clock, typename Duration>

bool engine::subprocess::ChildProcess::WaitUntil ( std::chrono::time_point< Clock, Duration > until )

inlinenodiscard

Wait for the child process to terminate.

Returns

false if this did not happen until the specified time point has been reached or a task cancellation

Definition at line 52 of file child_process.hpp.

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

• userver/engine/subprocess/child_process.hpp