JOKOH: A simple generic C wrapper for low level timers

This repository aims to provide a C interface for low-level timers with almost zero overhead.

Moreover, it allows the user to code a small wrapper to 1 interfaces offered by **jokoh**, and then only have to change this line in the code to change the counter used in the whole code. See below:

#include <stdint.h>
#include <jokoh.h>

uint64_t get_time(void)
{
  return get_time_monotonic_raw();
}

Insallation

$ git clone https://github.com/Sholde/jokoh.git
$ make
$ sudo make install

Help

$ make help
###################################################################
This is the Makefile for the execution of libjokoh.so
make help shows this extra information

Usage: make target VAR=
target is one of:
  help                      : show this help message
  all                       : build the project
  clean                     : removes everything that can be rebuilt
  prepare                   : create empty directories for objects and binaries
  install                   : install the shared library in INSTALL_PREFIX
  uninstall                 : uninstall the shared library in INSTALL_PREFIX
VAR can be one of:
  VERBOSE                   : by default it is set to '@' and disables verbosity, set it to '' to enable verbosity
  INSTALL_PREFIX            : by default it is defined as '/usr/local', it specifies the directory where the shared library will be installed

List of supported functions

/* clock_gettime API in nanoseconds */
uint64_t get_time_realtime(void);
uint64_t get_time_monotonic(void);
uint64_t get_time_monotonic_raw(void);
uint64_t get_time_process(void);
uint64_t get_time_thread(void);

/* clock_gettime API in seconds */
uint64_t get_time_realtime_sec(void);
uint64_t get_time_monotonic_sec(void);
uint64_t get_time_monotonic_raw_sec(void);
uint64_t get_time_process_sec(void);
uint64_t get_time_thread_sec(void);

/* x86/amd64 counter API */
#if defined(__x86_64__)
uint64_t get_time_x86(void);
uint64_t get_time_x86_serialized(void);
uint64_t get_time_amd64(void);
uint64_t get_time_amd64_serialized(void);
#elif defined(__i386__)
uint32_t get_time_x86(void);
uint32_t get_time_x86_serialized(void);
uint32_t get_time_amd64(void);
uint32_t get_time_amd64_serialized(void);
#endif

/* aarch64 counter API */
#if defined(__aarch64__)
uint64_t get_time_aarch64_physical(void);
uint64_t get_time_aarch64_physical_serialized(void);
uint64_t get_time_aarch64_virtual(void);
uint64_t get_time_aarch64_virtual_serialized(void);
uint64_t get_time_aarch64_performance(void);
#endif