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/* Copyright (c) 2008-2022 the MRtrix3 contributors.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Covered Software is provided under this License on an "as is"
* basis, without warranty of any kind, either expressed, implied, or
* statutory, including, without limitation, warranties that the
* Covered Software is free of defects, merchantable, fit for a
* particular purpose or non-infringing.
* See the Mozilla Public License v. 2.0 for more details.
*
* For more details, see http://www.mrtrix.org/.
*/
#include "app.h"
#include "progressbar.h"
// MSYS2 supports VT100, and file redirection is handled explicitly so this can be used globally
#define CLEAR_LINE_CODE "\033[0K"
#define WRAP_ON_CODE "\033[?7h"
#define WRAP_OFF_CODE "\033[?7l"
namespace MR
{
extern bool __need_newline;
namespace
{
const char* busy[] = {
". ",
" . ",
" . ",
" .",
" . ",
" . "
};
void display_func_multithreaded (const ProgressBar& p)
{
ProgressBar::notification_is_genuine = true;
ProgressBar::notifier.notify_all();
}
void display_func_terminal (const ProgressBar& p)
{
__need_newline = true;
if (p.show_percent())
__print_stderr (printf (WRAP_OFF_CODE "\r%s: [%3" PRI_SIZET "%%] %s%s" CLEAR_LINE_CODE WRAP_ON_CODE,
App::NAME.c_str(), p.value(), p.text().c_str(), p.ellipsis().c_str()));
else
__print_stderr (printf (WRAP_OFF_CODE "\r%s: [%s] %s%s" CLEAR_LINE_CODE WRAP_ON_CODE,
App::NAME.c_str(), busy[p.value()%6], p.text().c_str(), p.ellipsis().c_str()));
}
void done_func_terminal (const ProgressBar& p)
{
if (p.show_percent())
__print_stderr (printf ("\r%s: [100%%] %s" CLEAR_LINE_CODE "\n",
App::NAME.c_str(), p.text().c_str()));
else
__print_stderr (printf ("\r%s: [done] %s" CLEAR_LINE_CODE "\n",
App::NAME.c_str(), p.text().c_str()));
__need_newline = false;
}
void display_func_redirect (const ProgressBar& p)
{
static size_t count = 0;
static size_t next_update_at = 0;
// need to update whole line since text may have changed:
if (p.text_has_been_modified()) {
__need_newline = false;
if (p.value() == 0 && p.count() == 0)
count = next_update_at = 0;
if (count++ == next_update_at) {
if (p.show_percent()) {
__print_stderr (printf ("%s: [%3" PRI_SIZET "%%] %s%s\n",
App::NAME.c_str(), p.value(), p.text().c_str(), p.ellipsis().c_str()));;
}
else {
__print_stderr (printf ("%s: [%s] %s%s\n",
App::NAME.c_str(), busy[p.value()%6], p.text().c_str(), p.ellipsis().c_str()));
}
if (next_update_at)
next_update_at *= 2;
else
next_update_at = 1;
}
}
// text is static - can simply append to the current line:
else {
__need_newline = true;
if (p.show_percent()) {
if (p.first_time) {
p.first_time = false;
__print_stderr (printf ("%s: %s%s [",
App::NAME.c_str(), p.text().c_str(), p.ellipsis().c_str()));;
}
else while (p.last_value < p.value()) {
__print_stderr (printf ("="));
p.last_value += 2;
}
}
else {
if (p.value() == 0) {
__print_stderr (printf ("%s: %s%s ",
App::NAME.c_str(), p.text().c_str(), p.ellipsis().c_str()));;
}
else if (!(p.value() & (p.value()-1))) {
__print_stderr (".");
}
}
}
}
void done_func_redirect (const ProgressBar& p)
{
if (p.text_has_been_modified()) {
if (p.show_percent()) {
__print_stderr (printf ("%s: [100%%] %s\n", App::NAME.c_str(), p.text().c_str()));;
}
else {
__print_stderr (printf ("%s: [done] %s\n", App::NAME.c_str(), p.text().c_str()));
}
}
else {
if (p.show_percent())
__print_stderr (printf ("]\n"));
else
__print_stderr (printf ("done\n"));
}
__need_newline = false;
}
}
void (*ProgressBar::display_func) (const ProgressBar& p) = display_func_terminal;
void (*ProgressBar::done_func) (const ProgressBar& p) = done_func_terminal;
void (*ProgressBar::previous_display_func) (const ProgressBar& p) = nullptr;
std::condition_variable ProgressBar::notifier;
bool ProgressBar::notification_is_genuine = false;
std::mutex ProgressBar::mutex;
void* ProgressBar::data = nullptr;
bool ProgressBar::progressbar_active = false;
ProgressBar::SwitchToMultiThreaded::SwitchToMultiThreaded () {
ProgressBar::previous_display_func = ProgressBar::display_func;
ProgressBar::display_func = display_func_multithreaded;
}
ProgressBar::SwitchToMultiThreaded::~SwitchToMultiThreaded () {
ProgressBar::display_func = ProgressBar::previous_display_func;
ProgressBar::previous_display_func = nullptr;
}
void (*previous_display_func) (ProgressBar& p);
bool ProgressBar::set_update_method ()
{
bool stderr_to_file = false;
struct stat buf;
if (fstat (STDERR_FILENO, &buf))
// unable to determine nature of stderr; assuming socket
stderr_to_file = false;
else
stderr_to_file = S_ISREG (buf.st_mode);
if (stderr_to_file) {
ProgressBar::display_func = display_func_redirect;
ProgressBar::done_func = done_func_redirect;
}
else {
ProgressBar::display_func = display_func_terminal;
ProgressBar::done_func = done_func_terminal;
}
return stderr_to_file;
}
}
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