profiling.h

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/*
 * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_PROFILING_H
#define _RTEMS_PROFILING_H

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

typedef enum {
  RTEMS_PROFILING_PER_CPU,

  RTEMS_PROFILING_SMP_LOCK
} rtems_profiling_type;

typedef struct {
  rtems_profiling_type type;
} rtems_profiling_header;

typedef struct {
  rtems_profiling_header header;

  uint32_t processor_index;

  uint32_t max_thread_dispatch_disabled_time;

  uint64_t thread_dispatch_disabled_count;

  uint64_t total_thread_dispatch_disabled_time;

  uint32_t max_interrupt_delay;

  uint32_t max_interrupt_time;

  uint64_t interrupt_count;

  uint64_t total_interrupt_time;
} rtems_profiling_per_cpu;

#define RTEMS_PROFILING_SMP_LOCK_CONTENTION_COUNTS 4

typedef struct {
  rtems_profiling_header header;

  const char *name;

  uint32_t max_acquire_time;

  uint32_t max_section_time;

  uint64_t usage_count;

  uint64_t total_acquire_time;

  uint64_t total_section_time;

  uint64_t contention_counts[RTEMS_PROFILING_SMP_LOCK_CONTENTION_COUNTS];
} rtems_profiling_smp_lock;

typedef union {
  rtems_profiling_header header;

  rtems_profiling_per_cpu per_cpu;

  rtems_profiling_smp_lock smp_lock;
} rtems_profiling_data;

typedef void (*rtems_profiling_visitor)(
  void *arg,
  const rtems_profiling_data *data
);

void rtems_profiling_iterate(
  rtems_profiling_visitor visitor,
  void *visitor_arg
);

typedef int (*rtems_profiling_printf)(void *arg, const char *format, ...);

int rtems_profiling_report_xml(
  const char *name,
  rtems_profiling_printf printf_func,
  void *printf_arg,
  uint32_t indentation_level,
  const char *indentation
);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* _RTEMS_PROFILING_H */