NAME

Pcreate_agent — create the agent LWP

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
Pcreate_agent(struct ps_prochandle *P);

DESCRIPTION

The Pcreate_agent() function creates the agent LWP in the process represented by the handle P. The agent LWP is used as a means to force system calls to be invoked on the controlled process. For more information on the agent LWP, see proc(5).

The agent LWP cannot be created for process handles corresponding to core files, zombie processes, processes that have yet to run, and ELF objects.

The Pcreate_agent() function is reentrant. It may be entered recursively. The act of creating the agent LWP will cause the process to be stopped. For every call to the Pcreate_agent() function, a corresponding call to Pdestroy_agent(3PROC) is required.

RETURN VALUES

Upon successful completion, the Pcreate_agent() function returns 0 and creates the agent LWP. Otherwise, -1 is returned, errno is set to indicate the error, and the agent LWP is not created.

ERRORS

The Pcreate_agent() function will fail if:

ENOENT: The process referred to by P is a core file, zombie, ELF object, or has not begun execution.

Note, it is possible for other error numbers to be returned. If they are, they represent unanticipated failure.

INTERFACE STABILITY

Uncommitted

MT-LEVEL

See LOCKING in libproc(3LIB).