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/* Copyright 2018 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
*/
#include <inttypes.h>
#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <assert.h>
#include <stdbool.h>
#include "progress.h"
static uint64_t progress_pcent;
static uint64_t progress_n_upd;
static time_t progress_prevsec;
static struct timespec progress_start;
static bool shutup;
#define PROGRESS_CHARS 50
static void progress_bar(unsigned int percent)
{
unsigned int i, progress;
assert(percent <= 100);
if (shutup)
return;
progress = (percent * PROGRESS_CHARS) / 101;
fprintf(stderr, "\r[");
for (i = 0; i <= progress; i++)
fprintf(stderr, "=");
for (; i < PROGRESS_CHARS; i++)
fprintf(stderr, " ");
fprintf(stderr, "] %u%%", percent);
fflush(stderr);
}
void progress_shutup(void)
{
shutup = true;
}
void progress_init(void)
{
progress_pcent = 0;
progress_n_upd = ULONG_MAX;
progress_prevsec = ULONG_MAX;
progress_bar(0);
clock_gettime(CLOCK_MONOTONIC, &progress_start);
}
void progress_tick(uint64_t cur, uint64_t end)
{
struct timespec now;
unsigned int pcent;
double sec;
if (shutup)
return;
pcent = (unsigned int)((cur * 100) / end);
if (progress_pcent == pcent && cur < progress_n_upd &&
cur < end)
return;
progress_pcent = pcent;
clock_gettime(CLOCK_MONOTONIC, &now);
progress_bar(pcent);
sec = difftime(now.tv_sec, progress_start.tv_sec);
if (sec >= 5 && pcent > 0) {
uint64_t persec = cur / sec;
uint64_t rem_sec;
if (!persec)
persec = 1;
progress_n_upd = cur + persec;
rem_sec = ((sec * 100) + (pcent / 2)) / pcent - sec;
if (rem_sec > progress_prevsec)
rem_sec = progress_prevsec;
progress_prevsec = rem_sec;
if (rem_sec < 60)
fprintf(stderr, " ETA:%" PRIu64 "s ", rem_sec);
else {
fprintf(stderr, " ETA:%" PRIu64 ":%02" PRIu64 ":%02" PRIu64 " ",
rem_sec / 3600,
(rem_sec / 60) % 60,
rem_sec % 60);
}
}
fflush(stderr);
}
void progress_end(void)
{
if (shutup)
return;
fprintf(stderr, "\n");
}
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