Source / Include Folder (#88)

Moved Source Files Into `src` Folder

1 files changed, 0 insertions, 248 deletions

diff --git a/bar.c b/bar.c
deleted file mode 100644
index b0e595e..0000000
--- a/bar.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/****************************************************************************
- * bfs                                                                      *
- * Copyright (C) 2020-2022 Tavian Barnes <tavianator@tavianator.com>        *
- *                                                                          *
- * Permission to use, copy, modify, and/or distribute this software for any *
- * purpose with or without fee is hereby granted.                           *
- *                                                                          *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES *
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         *
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  *
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   *
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    *
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  *
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           *
- ****************************************************************************/
-
-#include "bar.h"
-#include "dstring.h"
-#include "util.h"
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <unistd.h>
-
-struct bfs_bar {
-	int fd;
-	volatile sig_atomic_t width;
-	volatile sig_atomic_t height;
-};
-
-/** The global status bar instance. */
-static struct bfs_bar the_bar = {
-	.fd = -1,
-};
-
-/** Get the terminal size, if possible. */
-static int bfs_bar_getsize(struct bfs_bar *bar) {
-#ifdef TIOCGWINSZ
-	struct winsize ws;
-	if (ioctl(bar->fd, TIOCGWINSZ, &ws) != 0) {
-		return -1;
-	}
-
-	bar->width = ws.ws_col;
-	bar->height = ws.ws_row;
-	return 0;
-#else
-	errno = ENOTSUP;
-	return -1;
-#endif
-}
-
-/** Async Signal Safe puts(). */
-static int ass_puts(int fd, const char *str) {
-	size_t len = strlen(str);
-	return xwrite(fd, str, len) == len ? 0 : -1;
-}
-
-/** Number of decimal digits needed for terminal sizes. */
-#define ITOA_DIGITS ((sizeof(unsigned short) * CHAR_BIT + 2) / 3)
-
-/** Async Signal Safe itoa(). */
-static char *ass_itoa(char *str, unsigned int n) {
-	char *end = str + ITOA_DIGITS;
-	*end = '\0';
-
-	char *c = end;
-	do {
-		*--c = '0' + (n % 10);
-		n /= 10;
-	} while (n);
-
-	size_t len = end - c;
-	memmove(str, c, len + 1);
-	return str + len;
-}
-
-/** Update the size of the scrollable region. */
-static int bfs_bar_resize(struct bfs_bar *bar) {
-	char esc_seq[12 + ITOA_DIGITS] =
-		"\0337"   // DECSC: Save cursor
-		"\033[;"; // DECSTBM: Set scrollable region
-
-	// DECSTBM takes the height as the second argument
-	char *ptr = esc_seq + strlen(esc_seq);
-	ptr = ass_itoa(ptr, bar->height - 1);
-
-	strcpy(ptr,
-		"r"      // DECSTBM
-		"\0338"  // DECRC: Restore the cursor
-		"\033[J" // ED: Erase display from cursor to end
-	);
-
-	return ass_puts(bar->fd, esc_seq);
-}
-
-#ifdef SIGWINCH
-/** SIGWINCH handler. */
-static void sighand_winch(int sig) {
-	int error = errno;
-
-	bfs_bar_getsize(&the_bar);
-	bfs_bar_resize(&the_bar);
-
-	errno = error;
-}
-#endif
-
-/** Reset the scrollable region and hide the bar. */
-static int bfs_bar_reset(struct bfs_bar *bar) {
-	return ass_puts(bar->fd,
-		"\0337"  // DECSC: Save cursor
-		"\033[r" // DECSTBM: Reset scrollable region
-		"\0338"  // DECRC: Restore cursor
-		"\033[J" // ED: Erase display from cursor to end
-	);
-}
-
-/** Signal handler for process-terminating signals. */
-static void sighand_reset(int sig) {
-	bfs_bar_reset(&the_bar);
-	raise(sig);
-}
-
-/** Register sighand_reset() for a signal. */
-static void reset_before_death_by(int sig) {
-	struct sigaction sa = {
-		.sa_handler = sighand_reset,
-		.sa_flags = SA_RESETHAND,
-	};
-	sigemptyset(&sa.sa_mask);
-	sigaction(sig, &sa, NULL);
-}
-
-/** printf() to the status bar with a single write(). */
-BFS_FORMATTER(2, 3)
-static int bfs_bar_printf(struct bfs_bar *bar, const char *format, ...) {
-	va_list args;
-	va_start(args, format);
-	char *str = dstrvprintf(format, args);
-	va_end(args);
-
-	if (!str) {
-		return -1;
-	}
-
-	int ret = ass_puts(bar->fd, str);
-	dstrfree(str);
-	return ret;
-}
-
-struct bfs_bar *bfs_bar_show(void) {
-	if (the_bar.fd >= 0) {
-		errno = EBUSY;
-		goto fail;
-	}
-
-	char term[L_ctermid];
-	ctermid(term);
-	if (strlen(term) == 0) {
-		errno = ENOTTY;
-		goto fail;
-	}
-
-	the_bar.fd = open(term, O_RDWR | O_CLOEXEC);
-	if (the_bar.fd < 0) {
-		goto fail;
-	}
-
-	if (bfs_bar_getsize(&the_bar) != 0) {
-		goto fail_close;
-	}
-
-	reset_before_death_by(SIGABRT);
-	reset_before_death_by(SIGINT);
-	reset_before_death_by(SIGPIPE);
-	reset_before_death_by(SIGQUIT);
-	reset_before_death_by(SIGTERM);
-
-#ifdef SIGWINCH
-	struct sigaction sa = {
-		.sa_handler = sighand_winch,
-		.sa_flags = SA_RESTART,
-	};
-	sigemptyset(&sa.sa_mask);
-	sigaction(SIGWINCH, &sa, NULL);
-#endif
-
-	bfs_bar_printf(&the_bar,
-		"\n"        // Make space for the bar
-		"\0337"     // DECSC: Save cursor
-		"\033[;%ur" // DECSTBM: Set scrollable region
-		"\0338"     // DECRC: Restore cursor
-		"\033[1A",  // CUU: Move cursor up 1 row
-		(unsigned int)(the_bar.height - 1)
-	);
-
-	return &the_bar;
-
-fail_close:
-	close_quietly(the_bar.fd);
-	the_bar.fd = -1;
-fail:
-	return NULL;
-}
-
-unsigned int bfs_bar_width(const struct bfs_bar *bar) {
-	return bar->width;
-}
-
-int bfs_bar_update(struct bfs_bar *bar, const char *str) {
-	return bfs_bar_printf(bar,
-		"\0337"      // DECSC: Save cursor
-		"\033[%u;0f" // HVP: Move cursor to row, column
-		"\033[K"     // EL: Erase line
-		"\033[7m"    // SGR reverse video
-		"%s"
-		"\033[27m"   // SGR reverse video off
-		"\0338",     // DECRC: Restore cursor
-		(unsigned int)bar->height,
-		str
-	);
-}
-
-void bfs_bar_hide(struct bfs_bar *bar) {
-	if (!bar) {
-		return;
-	}
-
-	signal(SIGABRT, SIG_DFL);
-	signal(SIGINT, SIG_DFL);
-	signal(SIGPIPE, SIG_DFL);
-	signal(SIGQUIT, SIG_DFL);
-	signal(SIGTERM, SIG_DFL);
-#ifdef SIGWINCH
-	signal(SIGWINCH, SIG_DFL);
-#endif
-
-	bfs_bar_reset(bar);
-
-	xclose(bar->fd);
-	bar->fd = -1;
-}