PSYNC(3PROC) Process Control Library Functions PSYNC(3PROC)

Psync, Lsync
synchronize cached tracing flags and modifications

Process Control Library (libproc, -lproc)

#include <libproc.h>

Psync(struct ps_prochandle *P);

Lsync(struct ps_lwphandle *L);

The Psync() function synchronizes modifications to the process handle P back to the underlying active process. The Psync() function ensures that any outstanding process holds, register modifications, signal injections, and modifications to the various fault and system call tracing flags are taken care of.

Normally this function is not required as other library routines take care of synchronizing this state out to the process when it is required. If the underlying /proc file system routines are used outside of the library, calling this function may be required.

The Psync() function is only meaningful for active processes. It will do nothing on process handles that refer to core files, zombie processes, and ELF objects.

The Lsync() function is equivalent to the Psync() function, except rather than operating on the entire process and its representative thread, it instead operates on the thread handle L.


See LOCKING in libproc(3LIB).

libproc(3LIB), Pfault(3PROC), Pputareg(3PROC), Psetfault(3PROC), Psetsignal(3PROC), Psetsysentry(3PROC), Psetsysexit(3PROC), Psignal(3PROC), Psysentry(3PROC), Psysexit(3PROC), proc(5)
May 11, 2016 OmniOS