seastar::experimental::process Class Reference

Detailed Description

Interact with a spawned subprocess

Note

the spawned subprocess should always be wait()'ed. Otherwise, the Seastar application spawning the subprocess will leave us with one ore more zombie subprocesses after it exists.

#include <seastar/util/process.hh>

Classes
struct	wait_exited
struct	wait_signaled

Public Types
using	wait_status = std::variant< wait_exited, wait_signaled >

Public Member Functions
	process (create_tag, pid_t pid, file_desc &&cin, file_desc &&cout, file_desc &&cerr)
output_stream< char >	cin ()
	Return an writable stream which provides input from the child process.
input_stream< char >	cout ()
	Return an writable stream which provides stdout output from the child process.
input_stream< char >	cerr ()
	Return an writable stream which provides stderr output from the child process.
future< wait_status >	wait ()
void	terminate ()
	Stop the process using SIGTERM.
void	kill ()
	Force the process to exit using SIGKILL.

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Class Documentation

seastar::experimental::process::wait_exited

struct seastar::experimental::process::wait_exited

Class Members
int	exit_code

seastar::experimental::process::wait_signaled

struct seastar::experimental::process::wait_signaled

Class Members
int	terminating_signal

Member Function Documentation

wait()

future< wait_status > seastar::experimental::process::wait

(

)

Wait until the child process exits or terminates

Returns

the exit status

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

• seastar/util/process.hh