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https://github.com/linux-msm/qdl.git
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8c32a74086
Not providing any user feedback during flashing is not very user friendly, in particular when, in some situations, it can take minutes to flash very large files. Introduce a progress bar for the flashing and patching steps to provide such feedback to the user, when stdout is determined to be a terminal of sufficient size (i.e. tools programmatically invoking qdl should see no difference). Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
#include <stdarg.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include "qdl.h"
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#define MIN(x, y) ((x) < (y) ? (x) : (y))
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#define UX_PROGRESS_REFRESH_RATE 10
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#define UX_PROGRESS_SIZE_MAX 120
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static const char * const progress_hashes = "########################################################################################################################";
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static const char * const progress_dashes = "------------------------------------------------------------------------------------------------------------------------";
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static unsigned int ux_width;
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static unsigned int ux_cur_line_length;
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/*
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* Levels of output:
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*
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* error: used to signal errors to the user
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* info: used to inform the user about progress
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* logs: log prints from the device
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* debug: protocol logs
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*/
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/* Clear ux_cur_line_length characters of the progress bar from the screen */
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static void ux_clear_line(void)
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{
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if (!ux_cur_line_length)
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return;
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printf("%*s\r", ux_cur_line_length, "");
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fflush(stdout);
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ux_cur_line_length = 0;
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}
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void ux_init(void)
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{
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struct winsize w;
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int ret;
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ret = ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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if (!ret)
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ux_width = MIN(w.ws_col, UX_PROGRESS_SIZE_MAX);
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}
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void ux_err(const char *fmt, ...)
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{
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va_list ap;
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ux_clear_line();
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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fflush(stderr);
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}
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void ux_info(const char *fmt, ...)
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{
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va_list ap;
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ux_clear_line();
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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fflush(stdout);
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}
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void ux_log(const char *fmt, ...)
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{
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va_list ap;
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if (!qdl_debug)
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return;
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ux_clear_line();
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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fflush(stdout);
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}
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void ux_debug(const char *fmt, ...)
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{
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va_list ap;
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if (!qdl_debug)
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return;
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ux_clear_line();
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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fflush(stdout);
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}
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void ux_progress(const char *fmt, unsigned int value, unsigned int max, ...)
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{
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static struct timeval last_progress_update;
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unsigned long elapsed_us;
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unsigned int bar_length;
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unsigned int bars;
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unsigned int dashes;
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struct timeval now;
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char task_name[32];
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float percent;
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va_list ap;
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/* Don't print progress is window is too narrow, or if stdout is redirected */
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if (ux_width < 30)
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return;
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/* Avoid updating the console more than UX_PROGRESS_REFRESH_RATE per second */
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if (last_progress_update.tv_sec) {
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gettimeofday(&now, NULL);
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elapsed_us = (now.tv_sec - last_progress_update.tv_sec) * 1000000 +
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(now.tv_usec - last_progress_update.tv_usec);
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if (elapsed_us < (1000000 / UX_PROGRESS_REFRESH_RATE))
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return;
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}
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va_start(ap, max);
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vsnprintf(task_name, sizeof(task_name), fmt, ap);
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va_end(ap);
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bar_length = ux_width - (20 + 4 + 6);
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percent = (float)value / max;
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bars = percent * bar_length;
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dashes = bar_length - bars;
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printf("%-20.20s [%.*s%.*s] %1.2f%%%n\r", task_name,
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bars, progress_hashes,
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dashes, progress_dashes,
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percent * 100,
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&ux_cur_line_length);
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fflush(stdout);
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gettimeofday(&last_progress_update, NULL);
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}
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