Manual Pages for UNIX Operating System command usage for man cpc_pctx_invalidate

CPU Performance Counters Library Functions
                                        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 
     #include 

     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);


DESCRIPTION
     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  control-
     ling  process, to manipulate the performance counters in the
     context of a controlled process. The controlled  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 con-
     text 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 pro-
     cess.

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





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CPU Performance Counters Library Functions
                                        cpc_pctx_bind_event(3CPC)



ERRORS
     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:

     EACCES    For cpc_pctx_bind_event(), access to the requested
               hypervisor event was denied.


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


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | Unsafe                      |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|


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

NOTES
     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 func-
     tions  will  not  compile.  These functions are obsolete and
     might be removed in a future  release.  Applications  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 version of this API.  In  the  current
     implementation, the flags field must be specified as 0.







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CPU Performance Counters Library Functions
                                        cpc_pctx_bind_event(3CPC)






















































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