freebsd man page for pmc_init

PMC_INIT(3)						   BSD Library Functions Manual 					       PMC_INIT(3)

NAME
     pmc_init -- initialize library

LIBRARY
     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS
     #include <pmc.h>

     int
     pmc_init(void);

DESCRIPTION
     Function pmc_init() initializes the PMC library.  This function must be called before any of the other functions in the library.

RETURN VALUES
     The pmc_init() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi-
     cate the error.

ERRORS
     A call to pmc_init() may fail with the following errors:

     [ENOENT]		The hwpmc(4) module was not found in the kernel.

     [EPROGMISMATCH]	The library's version number did not match that expected by hwpmc(4).

     [ENXIO]		PMC hardware on this system is unsupported.

SEE ALSO
     pmc(3), hwpmc(4)

BSD
								 November 24, 2007							       BSD