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/*
* perf_counter.c
*
* Created on: Sep 24, 2014
* Author: roman
*/
#include <stdlib.h>
#include <stdio.h>
#include <systemlib/perf_counter.h>
perf_counter_t perf_alloc(enum perf_counter_type type, const char *name)
{
return NULL;
}
/**
* Free a counter.
*
* @param handle The performance counter's handle.
*/
void perf_free(perf_counter_t handle)
{
}
/**
* Count a performance event.
*
* This call only affects counters that take single events; PC_COUNT, PC_INTERVAL etc.
*
* @param handle The handle returned from perf_alloc.
*/
void perf_count(perf_counter_t handle)
{
}
/**
* Begin a performance event.
*
* This call applies to counters that operate over ranges of time; PC_ELAPSED etc.
*
* @param handle The handle returned from perf_alloc.
*/
void perf_begin(perf_counter_t handle)
{
}
/**
* End a performance event.
*
* This call applies to counters that operate over ranges of time; PC_ELAPSED etc.
* If a call is made without a corresopnding perf_begin call, or if perf_cancel
* has been called subsequently, no change is made to the counter.
*
* @param handle The handle returned from perf_alloc.
*/
void perf_end(perf_counter_t handle)
{
}
/**
* Cancel a performance event.
*
* This call applies to counters that operate over ranges of time; PC_ELAPSED etc.
* It reverts the effect of a previous perf_begin.
*
* @param handle The handle returned from perf_alloc.
*/
void perf_cancel(perf_counter_t handle)
{
}
/**
* Reset a performance counter.
*
* This call resets performance counter to initial state
*
* @param handle The handle returned from perf_alloc.
*/
void perf_reset(perf_counter_t handle)
{
}
/**
* Print one performance counter to stdout
*
* @param handle The counter to print.
*/
void perf_print_counter(perf_counter_t handle)
{
}
/**
* Print one performance counter to a fd.
*
* @param fd File descriptor to print to - e.g. 0 for stdout
* @param handle The counter to print.
*/
void perf_print_counter_fd(int fd, perf_counter_t handle)
{
}
/**
* Print all of the performance counters.
*
* @param fd File descriptor to print to - e.g. 0 for stdout
*/
void perf_print_all(int fd)
{
}
/**
* Reset all of the performance counters.
*/
void perf_reset_all(void)
{
}
/**
* Return current event_count
*
* @param handle The counter returned from perf_alloc.
* @return event_count
*/
uint64_t perf_event_count(perf_counter_t handle)
{
}
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