cuttlefish::process_sandboxer::PidFd Class Reference

#include <pidfd.h>

Collaboration diagram for cuttlefish::process_sandboxer::PidFd:

Public Member Functions
int	Get () const
absl::StatusOr< std::vector< std::pair< sapi::file_util::fileops::FDCloser, int > > >	AllFds ()
absl::StatusOr< std::vector< std::string > >	Argv ()
absl::StatusOr< std::vector< std::string > >	Env ()
absl::Status	HaltHierarchy ()
absl::Status	HaltChildHierarchy ()

Static Public Member Functions
static absl::StatusOr< PidFd >	FromRunningProcess (pid_t pid)
static absl::StatusOr< PidFd >	LaunchSubprocess (absl::Span< const std::string > argv, std::vector< std::pair< sapi::file_util::fileops::FDCloser, int > > fds, absl::Span< const std::string > env)

Private Member Functions
	PidFd (sapi::file_util::fileops::FDCloser, pid_t)
absl::Status	SendSignal (int signal)

Private Attributes
sapi::file_util::fileops::FDCloser	fd_
pid_t	pid_

Constructor & Destructor Documentation

PidFd()

cuttlefish::process_sandboxer::PidFd::PidFd ( sapi::file_util::fileops::FDCloser  , pid_t    )

private

Member Function Documentation

AllFds()

absl::StatusOr< std::vector< std::pair< FDCloser, int > > > cuttlefish::process_sandboxer::PidFd::AllFds

(

)

Copies file descriptors from the target process, mapping them into the current process.

Keys are file descriptor numbers in the target process, values are open file descriptors in the current process.

Argv()

absl::StatusOr< std::vector< std::string > > cuttlefish::process_sandboxer::PidFd::Argv

(

)

Env()

absl::StatusOr< std::vector< std::string > > cuttlefish::process_sandboxer::PidFd::Env

(

)

FromRunningProcess()

absl::StatusOr< PidFd > cuttlefish::process_sandboxer::PidFd::FromRunningProcess ( pid_t  pid )

static

Returns a managed pidfd tracking a previously started process with pid.

Only reliably refers to the process pid if the caller can guarantee it was not reaped while this is executing, otherwise it may refer to an unknown process.

Get()

int cuttlefish::process_sandboxer::PidFd::Get

(

)

const

HaltChildHierarchy()

absl::Status cuttlefish::process_sandboxer::PidFd::HaltChildHierarchy

(

)

Halt all descendants of the process. Only safe to use if the caller guarantees the process doesn't spawn or reap any children while running.

HaltHierarchy()

absl::Status cuttlefish::process_sandboxer::PidFd::HaltHierarchy

(

)

Halt the process and all its descendants.

LaunchSubprocess()

absl::StatusOr< PidFd > cuttlefish::process_sandboxer::PidFd::LaunchSubprocess ( absl::Span< const std::string >  argv, std::vector< std::pair< sapi::file_util::fileops::FDCloser, int > >  fds, absl::Span< const std::string >  env  )

static

Launches a subprocess and returns a pidfd tracking the newly launched process.

SendSignal()

absl::Status cuttlefish::process_sandboxer::PidFd::SendSignal ( int  signal )

private

Member Data Documentation

fd_

sapi::file_util::fileops::FDCloser cuttlefish::process_sandboxer::PidFd::fd_

private

pid_

pid_t cuttlefish::process_sandboxer::PidFd::pid_

private

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

• cuttlefish/host/commands/process_sandboxer/pidfd.h
• cuttlefish/host/commands/process_sandboxer/pidfd.cpp