sunos man page for cpc_pctx_take_sample

cpc_pctx_bind_event(3CPC)												 cpc_pctx_bind_event(3CPC)

NAME
       cpc_pctx_bind_event, cpc_pctx_take_sample, cpc_pctx_rele, cpc_pctx_invalidate - access CPU performance counters in other processes

SYNOPSIS
       cc [ flag... ] file... -lcpc -lpctx [ library... ]
       #include <libpctx.h>
       #include <libcpc.h>

       int cpc_pctx_bind_event(pctx_t *pctx, id_t lwpid, cpc_event_t *event, int flags);

       int cpc_pctx_take_sample(pctx_t *pctx, id_t lwpid, cpc_event_t *event);

       int cpc_pctx_rele(pctx_t *pctx, id_t lwpid);

       int cpc_pctx_invalidate(pctx_t *pctx, id_t lwpid);

       These  functions  are  designed to be run in the context of an event handler created using the libpctx(3LIB) family of functions that allow
       the caller, also known as the controlling process, to manipulate the performance counters in the context of a controlled process. The  con-
       trolled process is described by the pctx argument, which must be obtained from an invocation of pctx_capture(3CPC) or pctx_create(3CPC) and
       passed to the functions described on this page in the context of an event handler.

       The semantics of the functions cpc_pctx_bind_event(), cpc_pctx_take_sample(), and  cpc_pctx_rele()  are	directly  analogous  to  those	of
       cpc_bind_event(), cpc_take_sample(), and cpc_rele() described on the cpc_bind_event(3CPC) manual page.

       The cpc_pctx_invalidate() function allows the performance context to be invalidated in an LWP in the controlled process.

       These functions return 0 on success.  On failure, they return -1 and set errno to indicate the error.

       The  cpc_pctx_bind_event(),  cpc_pctx_take_sample(),  and  cpc_pctx_rele()  functions  return the same errno values the analogous functions
       described on the cpc_bind_event(3CPC) manual page. In addition, these function may fail if:

       ESRCH	       The value of the lwpid argument is invalid in the context of the controlled process.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       cpc(3CPC), cpc_bind_event(3CPC), libcpc(3LIB), pctx_capture(3CPC), pctx_create(3CPC), attributes(5)

       The cpc_pctx_bind_event(), cpc_pctx_invalidate(), cpc_pctx_rele(), and cpc_pctx_take_sample()  functions  exist	for  binary  compatibility
       only.  Source  containing these functions will not compile. These functions are obsolete and might be removed in a future release. Applica-
       tions should use cpc_bind_pctx(3CPC), cpc_unbind(3CPC), and cpc_set_sample(3CPC) instead.

       The capability to create and analyze overflow events in other processes is not available, though it may be made available in a future  ver-
       sion of this API.  In the current implementation, the flags field must be specified as 0.

								    28 Mar 2005 					 cpc_pctx_bind_event(3CPC)