nsxiv/main.c
N-R-K 6922d5d01b
replace select() with poll() (#270)
usage of select (3) in modern programs is typically discouraged.
this simply replaces the select call with poll (3) instead.

and since poll conveniently ignores negative fds, this also reduces
needs for some special casing.

this also handles error if they occur, while old implementation didn't.
other than the error handling, no change in functionality should occur.
2022-04-28 03:12:15 +00:00

956 lines
21 KiB
C

/* Copyright 2011-2020 Bert Muennich
* Copyright 2021-2022 nsxiv contributors
*
* This file is a part of nsxiv.
*
* nsxiv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* nsxiv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with nsxiv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "nsxiv.h"
#include "commands.h"
#define _MAPPINGS_CONFIG
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <poll.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <time.h>
#include <X11/keysym.h>
#include <X11/XF86keysym.h>
#define MODMASK(mask) ((mask) & USED_MODMASK)
#define BAR_SEP " "
typedef struct {
struct timeval when;
bool active;
timeout_f handler;
} timeout_t;
/* timeout handler functions: */
void redraw(void);
void reset_cursor(void);
void animate(void);
void slideshow(void);
void clear_resize(void);
appmode_t mode;
arl_t arl;
img_t img;
tns_t tns;
win_t win;
const XButtonEvent *xbutton_ev;
fileinfo_t *files;
int filecnt, fileidx;
int alternate;
int markcnt;
int markidx;
int prefix;
static bool extprefix;
static bool resized = false;
typedef struct {
int err;
char *cmd;
} extcmd_t;
static struct {
extcmd_t f;
int fd;
unsigned int i, lastsep;
pid_t pid;
} info;
static struct {
extcmd_t f;
bool warned;
} keyhandler;
static struct {
extcmd_t f;
} wintitle;
static timeout_t timeouts[] = {
{ { 0, 0 }, false, redraw },
{ { 0, 0 }, false, reset_cursor },
{ { 0, 0 }, false, animate },
{ { 0, 0 }, false, slideshow },
{ { 0, 0 }, false, clear_resize },
};
/**************************
function implementations
**************************/
static void cleanup(void)
{
img_close(&img, false);
arl_cleanup(&arl);
tns_free(&tns);
win_close(&win);
}
static bool xgetline(char **lineptr, size_t *n)
{
ssize_t len = getdelim(lineptr, n, options->using_null ? '\0' : '\n', stdin);
if (!options->using_null && len > 0 && (*lineptr)[len-1] == '\n')
(*lineptr)[len-1] = '\0';
return len > 0;
}
static void check_add_file(char *filename, bool given)
{
char *path;
if (*filename == '\0')
return;
if (access(filename, R_OK) < 0 ||
(path = realpath(filename, NULL)) == NULL)
{
if (given)
error(0, errno, "%s", filename);
return;
}
if (fileidx == filecnt) {
filecnt *= 2;
files = erealloc(files, filecnt * sizeof(*files));
memset(&files[filecnt/2], 0, filecnt/2 * sizeof(*files));
}
files[fileidx].name = estrdup(filename);
files[fileidx].path = path;
if (given)
files[fileidx].flags |= FF_WARN;
fileidx++;
}
void remove_file(int n, bool manual)
{
if (n < 0 || n >= filecnt)
return;
if (filecnt == 1) {
if (!manual)
fprintf(stderr, "nsxiv: no more files to display, aborting\n");
exit(manual ? EXIT_SUCCESS : EXIT_FAILURE);
}
if (files[n].flags & FF_MARK)
markcnt--;
if (files[n].path != files[n].name)
free((void*) files[n].path);
free((void*) files[n].name);
if (n + 1 < filecnt) {
if (tns.thumbs != NULL) {
if (tns.thumbs[n].im != NULL) {
imlib_context_set_image(tns.thumbs[n].im);
imlib_free_image_and_decache();
}
memmove(tns.thumbs + n, tns.thumbs + n + 1, (filecnt - n - 1) *
sizeof(*tns.thumbs));
memset(tns.thumbs + filecnt - 1, 0, sizeof(*tns.thumbs));
}
memmove(files + n, files + n + 1, (filecnt - n - 1) * sizeof(*files));
}
filecnt--;
if (fileidx > n || fileidx == filecnt)
fileidx--;
if (alternate > n || alternate == filecnt)
alternate--;
if (markidx > n || markidx == filecnt)
markidx--;
}
void set_timeout(timeout_f handler, int time, bool overwrite)
{
unsigned int i;
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == handler) {
if (!timeouts[i].active || overwrite) {
gettimeofday(&timeouts[i].when, 0);
TV_ADD_MSEC(&timeouts[i].when, time);
timeouts[i].active = true;
}
return;
}
}
}
void reset_timeout(timeout_f handler)
{
unsigned int i;
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == handler) {
timeouts[i].active = false;
return;
}
}
}
static bool check_timeouts(struct timeval *t)
{
int i = 0, tdiff, tmin = -1;
struct timeval now;
while (i < ARRLEN(timeouts)) {
if (timeouts[i].active) {
gettimeofday(&now, 0);
tdiff = TV_DIFF(&timeouts[i].when, &now);
if (tdiff <= 0) {
timeouts[i].active = false;
if (timeouts[i].handler != NULL)
timeouts[i].handler();
i = tmin = -1;
} else if (tmin < 0 || tdiff < tmin) {
tmin = tdiff;
}
}
i++;
}
if (tmin > 0 && t != NULL)
TV_SET_MSEC(t, tmin);
return tmin > 0;
}
size_t get_win_title(unsigned char *buf, int len, bool init)
{
char *argv[8];
spawn_t pfd;
char w[12] = "", h[12] = "", z[12] = "", fidx[12], fcnt[12];
ssize_t n = -1;
if (buf == NULL || len <= 0)
return 0;
if (init) {
n = snprintf((char *)buf, len, "%s", options->res_name != NULL ?
options->res_name : "nsxiv");
} else if (!wintitle.f.err) {
if (mode == MODE_IMAGE) {
snprintf(w, ARRLEN(w), "%d", img.w);
snprintf(h, ARRLEN(h), "%d", img.h);
snprintf(z, ARRLEN(z), "%d", (int)(img.zoom * 100));
}
snprintf(fidx, ARRLEN(fidx), "%d", fileidx+1);
snprintf(fcnt, ARRLEN(fcnt), "%d", filecnt);
construct_argv(argv, ARRLEN(argv), wintitle.f.cmd, files[fileidx].path,
fidx, fcnt, w, h, z, NULL);
pfd = spawn(wintitle.f.cmd, argv, X_READ);
if (pfd.readfd >= 0) {
if ((n = read(pfd.readfd, buf, len-1)) > 0)
buf[n] = '\0';
close(pfd.readfd);
}
}
return MAX(0, n);
}
void close_info(void)
{
if (info.fd != -1) {
kill(info.pid, SIGTERM);
close(info.fd);
info.fd = -1;
}
}
void open_info(void)
{
spawn_t pfd;
char w[12], h[12];
char *argv[5];
if (info.f.err || info.fd >= 0 || win.bar.h == 0)
return;
win.bar.l.buf[0] = '\0';
snprintf(w, sizeof(w), "%d", img.w);
snprintf(h, sizeof(h), "%d", img.h);
construct_argv(argv, ARRLEN(argv), info.f.cmd, files[fileidx].name, w, h, NULL);
pfd = spawn(info.f.cmd, argv, X_READ);
if (pfd.readfd >= 0) {
fcntl(pfd.readfd, F_SETFL, O_NONBLOCK);
info.fd = pfd.readfd;
info.i = info.lastsep = 0;
info.pid = pfd.pid;
}
}
static void read_info(void)
{
ssize_t i, n;
char buf[BAR_L_LEN];
while (true) {
n = read(info.fd, buf, sizeof(buf));
if (n < 0 && errno == EAGAIN)
return;
else if (n == 0)
goto end;
for (i = 0; i < n; i++) {
if (buf[i] == '\n') {
if (info.lastsep == 0) {
win.bar.l.buf[info.i++] = ' ';
info.lastsep = 1;
}
} else {
win.bar.l.buf[info.i++] = buf[i];
info.lastsep = 0;
}
if (info.i + 1 == win.bar.l.size)
goto end;
}
}
end:
info.i -= info.lastsep;
win.bar.l.buf[info.i] = '\0';
win_draw(&win);
close_info();
}
void load_image(int new)
{
bool prev = new < fileidx;
static int current;
if (new < 0 || new >= filecnt)
return;
if (win.xwin != None)
win_set_cursor(&win, CURSOR_WATCH);
reset_timeout(slideshow);
if (new != current)
alternate = current;
img_close(&img, false);
while (!img_load(&img, &files[new])) {
remove_file(new, false);
if (new >= filecnt)
new = filecnt - 1;
else if (new > 0 && prev)
new--;
}
files[new].flags &= ~FF_WARN;
fileidx = current = new;
close_info();
open_info();
arl_setup(&arl, files[fileidx].path);
if (img.multi.cnt > 0 && img.multi.animate)
set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
else
reset_timeout(animate);
}
bool mark_image(int n, bool on)
{
markidx = n;
if (!!(files[n].flags & FF_MARK) != on) {
files[n].flags ^= FF_MARK;
markcnt += on ? 1 : -1;
if (mode == MODE_THUMB)
tns_mark(&tns, n, on);
return true;
}
return false;
}
static void bar_put(win_bar_t *bar, const char *fmt, ...)
{
size_t len = bar->size - (bar->p - bar->buf), n;
va_list ap;
va_start(ap, fmt);
n = vsnprintf(bar->p, len, fmt, ap);
bar->p += MIN(len, n);
va_end(ap);
}
static void update_info(void)
{
unsigned int i, fn, fw;
const char * mark;
win_bar_t *l = &win.bar.l, *r = &win.bar.r;
/* update bar contents */
if (win.bar.h == 0)
return;
for (fw = 0, i = filecnt; i > 0; fw++, i /= 10);
mark = files[fileidx].flags & FF_MARK ? "* " : "";
l->p = l->buf;
r->p = r->buf;
if (mode == MODE_THUMB) {
if (tns.loadnext < tns.end)
bar_put(l, "Loading... %0*d", fw, tns.loadnext + 1);
else if (tns.initnext < filecnt)
bar_put(l, "Caching... %0*d", fw, tns.initnext + 1);
else
strncpy(l->buf, files[fileidx].name, l->size);
bar_put(r, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
} else {
bar_put(r, "%s", mark);
if (img.ss.on) {
if (img.ss.delay % 10 != 0)
bar_put(r, "%2.1fs" BAR_SEP, (float)img.ss.delay / 10);
else
bar_put(r, "%ds" BAR_SEP, img.ss.delay / 10);
}
if (img.gamma)
bar_put(r, "G%+d" BAR_SEP, img.gamma);
bar_put(r, "%3d%%" BAR_SEP, (int) (img.zoom * 100.0));
if (img.multi.cnt > 0) {
for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
bar_put(r, "%0*d/%d" BAR_SEP, fn, img.multi.sel + 1, img.multi.cnt);
}
bar_put(r, "%0*d/%d", fw, fileidx + 1, filecnt);
if (info.f.err)
strncpy(l->buf, files[fileidx].name, l->size);
}
}
int nav_button(void)
{
int x, y, nw;
if (NAV_WIDTH == 0)
return 1;
win_cursor_pos(&win, &x, &y);
nw = NAV_IS_REL ? win.w * NAV_WIDTH / 100 : NAV_WIDTH;
nw = MIN(nw, (win.w + 1) / 2);
if (x < nw)
return 0;
else if (x < win.w-nw)
return 1;
else
return 2;
}
void redraw(void)
{
int t;
if (mode == MODE_IMAGE) {
img_render(&img);
if (img.ss.on) {
t = img.ss.delay * 100;
if (img.multi.cnt > 0 && img.multi.animate)
t = MAX(t, img.multi.length);
set_timeout(slideshow, t, false);
}
} else {
tns_render(&tns);
}
update_info();
win_set_title(&win, false);
win_draw(&win);
reset_timeout(redraw);
reset_cursor();
}
void reset_cursor(void)
{
int c;
unsigned int i;
cursor_t cursor = CURSOR_NONE;
if (mode == MODE_IMAGE) {
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == reset_cursor) {
if (timeouts[i].active) {
c = nav_button();
c = MAX(fileidx > 0 ? 0 : 1, c);
c = MIN(fileidx + 1 < filecnt ? 2 : 1, c);
cursor = imgcursor[c];
}
break;
}
}
} else {
if (tns.loadnext < tns.end || tns.initnext < filecnt)
cursor = CURSOR_WATCH;
else
cursor = CURSOR_ARROW;
}
win_set_cursor(&win, cursor);
}
void animate(void)
{
if (img_frame_animate(&img)) {
set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
redraw();
}
}
void slideshow(void)
{
load_image(fileidx + 1 < filecnt ? fileidx + 1 : 0);
redraw();
}
void clear_resize(void)
{
resized = false;
}
Bool is_input_ev(Display *dpy, XEvent *ev, XPointer arg)
{
return ev->type == ButtonPress || ev->type == KeyPress;
}
void handle_key_handler(bool init)
{
extprefix = init;
if (win.bar.h == 0)
return;
if (init) {
close_info();
snprintf(win.bar.l.buf, win.bar.l.size, "Getting key handler input "
"(%s to abort)...", XKeysymToString(KEYHANDLER_ABORT));
} else { /* abort */
open_info();
update_info();
}
win_draw(&win);
}
static bool run_key_handler(const char *key, unsigned int mask)
{
FILE *pfs;
bool marked = mode == MODE_THUMB && markcnt > 0;
bool changed = false;
int f, i;
int fcnt = marked ? markcnt : 1;
char kstr[32];
struct stat *oldst, st;
XEvent dump;
char *argv[3];
spawn_t pfd;
if (keyhandler.f.err) {
if (!keyhandler.warned) {
error(0, keyhandler.f.err, "%s", keyhandler.f.cmd);
keyhandler.warned = true;
}
return false;
}
if (key == NULL)
return false;
close_info();
strncpy(win.bar.l.buf, "Running key handler...", win.bar.l.size);
win_draw(&win);
win_set_cursor(&win, CURSOR_WATCH);
setenv("NSXIV_USING_NULL", options->using_null ? "1" : "0", 1);
snprintf(kstr, sizeof(kstr), "%s%s%s%s",
mask & ControlMask ? "C-" : "",
mask & Mod1Mask ? "M-" : "",
mask & ShiftMask ? "S-" : "", key);
construct_argv(argv, ARRLEN(argv), keyhandler.f.cmd, kstr, NULL);
pfd = spawn(keyhandler.f.cmd, argv, X_WRITE);
if (pfd.writefd < 0)
return false;
if ((pfs = fdopen(pfd.writefd, "w")) == NULL) {
close(pfd.writefd);
error(0, errno, "open pipe");
return false;
}
oldst = emalloc(fcnt * sizeof(*oldst));
for (f = i = 0; f < fcnt; i++) {
if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
stat(files[i].path, &oldst[f]);
fprintf(pfs, "%s%c", files[i].name, options->using_null ? '\0' : '\n');
f++;
}
}
fclose(pfs);
while (waitpid(pfd.pid, NULL, 0) == -1 && errno == EINTR);
for (f = i = 0; f < fcnt; i++) {
if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
if (stat(files[i].path, &st) != 0 ||
memcmp(&oldst[f].st_mtime, &st.st_mtime, sizeof(st.st_mtime)) != 0)
{
if (tns.thumbs != NULL) {
tns_unload(&tns, i);
tns.loadnext = MIN(tns.loadnext, i);
}
changed = true;
}
f++;
}
}
/* drop user input events that occurred while running the key handler */
while (XCheckIfEvent(win.env.dpy, &dump, is_input_ev, NULL));
if (mode == MODE_IMAGE) {
if (changed) {
img_close(&img, true);
load_image(fileidx);
} else {
open_info();
}
}
free(oldst);
reset_cursor();
return true;
}
static bool process_bindings(const keymap_t *bindings, unsigned int len, KeySym ksym_or_button,
unsigned int state, unsigned int implicit_mod)
{
unsigned int i;
bool dirty = false;
for (i = 0; i < len; i++) {
if (bindings[i].ksym_or_button == ksym_or_button &&
MODMASK(bindings[i].mask | implicit_mod) == MODMASK(state) &&
bindings[i].cmd.func &&
(bindings[i].cmd.mode == MODE_ALL || bindings[i].cmd.mode == mode))
{
if (bindings[i].cmd.func(bindings[i].arg))
dirty = true;
}
}
return dirty;
}
static void on_keypress(XKeyEvent *kev)
{
unsigned int sh = 0;
KeySym ksym, shksym;
char dummy, key;
bool dirty = false;
XLookupString(kev, &key, 1, &ksym, NULL);
if (kev->state & ShiftMask) {
kev->state &= ~ShiftMask;
XLookupString(kev, &dummy, 1, &shksym, NULL);
kev->state |= ShiftMask;
if (ksym != shksym)
sh = ShiftMask;
}
if (IsModifierKey(ksym))
return;
if (extprefix && ksym == KEYHANDLER_ABORT && MODMASK(kev->state) == 0) {
handle_key_handler(false);
} else if (extprefix) {
if ((dirty = run_key_handler(XKeysymToString(ksym), kev->state & ~sh)))
extprefix = false;
else
handle_key_handler(false);
} else if (key >= '0' && key <= '9') {
/* number prefix for commands */
prefix = prefix * 10 + (int) (key - '0');
return;
} else {
dirty = process_bindings(keys, ARRLEN(keys), ksym, kev->state, sh);
}
if (dirty)
redraw();
prefix = 0;
}
static void on_buttonpress(const XButtonEvent *bev)
{
bool dirty = false;
if (mode == MODE_IMAGE) {
set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
reset_cursor();
dirty = process_bindings(buttons_img, ARRLEN(buttons_img), bev->button, bev->state, 0);
} else { /* thumbnail mode */
dirty = process_bindings(buttons_tns, ARRLEN(buttons_tns), bev->button, bev->state, 0);
}
if (dirty)
redraw();
prefix = 0;
}
static void run(void)
{
enum { FD_X, FD_INFO, FD_ARL, FD_CNT };
struct pollfd pfd[FD_CNT];
struct timeval timeout = {0};
const struct timespec ten_ms = {0, 10000000};
bool discard, init_thumb, load_thumb, to_set;
XEvent ev, nextev;
xbutton_ev = &ev.xbutton;
while (true) {
to_set = check_timeouts(&timeout);
init_thumb = mode == MODE_THUMB && tns.initnext < filecnt;
load_thumb = mode == MODE_THUMB && tns.loadnext < tns.end;
if ((init_thumb || load_thumb || to_set || info.fd != -1 ||
arl.fd != -1) && XPending(win.env.dpy) == 0)
{
if (load_thumb) {
set_timeout(redraw, TO_REDRAW_THUMBS, false);
if (!tns_load(&tns, tns.loadnext, false, false)) {
remove_file(tns.loadnext, false);
tns.dirty = true;
}
if (tns.loadnext >= tns.end)
redraw();
} else if (init_thumb) {
set_timeout(redraw, TO_REDRAW_THUMBS, false);
if (!tns_load(&tns, tns.initnext, false, true))
remove_file(tns.initnext, false);
} else {
pfd[FD_X].fd = ConnectionNumber(win.env.dpy);
pfd[FD_INFO].fd = info.fd;
pfd[FD_ARL].fd = arl.fd;
pfd[FD_X].events = pfd[FD_INFO].events = pfd[FD_ARL].events = POLLIN;
if (poll(pfd, ARRLEN(pfd), to_set ? TV_TO_MS(&timeout) : -1) < 0)
continue;
if (pfd[FD_INFO].revents & POLLIN)
read_info();
if (pfd[FD_ARL].revents & POLLIN) {
if (arl_handle(&arl)) {
/* when too fast, imlib2 can't load the image */
nanosleep(&ten_ms, NULL);
img_close(&img, true);
load_image(fileidx);
redraw();
}
}
}
continue;
}
do {
XNextEvent(win.env.dpy, &ev);
discard = false;
if (XEventsQueued(win.env.dpy, QueuedAlready) > 0) {
XPeekEvent(win.env.dpy, &nextev);
switch (ev.type) {
case ConfigureNotify:
case MotionNotify:
discard = ev.type == nextev.type;
break;
case KeyPress:
discard = (nextev.type == KeyPress || nextev.type == KeyRelease)
&& ev.xkey.keycode == nextev.xkey.keycode;
break;
}
}
} while (discard);
switch (ev.type) {
/* handle events */
case ButtonPress:
on_buttonpress(&ev.xbutton);
break;
case ClientMessage:
if ((Atom) ev.xclient.data.l[0] == atoms[ATOM_WM_DELETE_WINDOW])
cg_quit(EXIT_SUCCESS);
break;
case DestroyNotify:
cg_quit(EXIT_FAILURE);
break;
case ConfigureNotify:
if (win_configure(&win, &ev.xconfigure)) {
if (mode == MODE_IMAGE) {
img.dirty = true;
img.checkpan = true;
} else {
tns.dirty = true;
}
if (!resized) {
redraw();
set_timeout(clear_resize, TO_REDRAW_RESIZE, false);
resized = true;
} else {
set_timeout(redraw, TO_REDRAW_RESIZE, false);
}
}
break;
case KeyPress:
on_keypress(&ev.xkey);
break;
case MotionNotify:
if (mode == MODE_IMAGE) {
set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
reset_cursor();
}
break;
}
}
}
static int fncmp(const void *a, const void *b)
{
return strcoll(((fileinfo_t*) a)->name, ((fileinfo_t*) b)->name);
}
void sigchld(int sig)
{
while (waitpid(-1, NULL, WNOHANG) > 0);
}
static void setup_signal(int sig, void (*handler)(int sig))
{
struct sigaction sa;
sa.sa_handler = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_NOCLDSTOP;
if (sigaction(sig, &sa, 0) == -1)
error(EXIT_FAILURE, errno, "signal %d", sig);
}
int main(int argc, char *argv[])
{
int i, start;
size_t n;
char *filename;
const char *homedir, *dsuffix = "";
struct stat fstats;
r_dir_t dir;
setup_signal(SIGCHLD, sigchld);
setup_signal(SIGPIPE, SIG_IGN);
setlocale(LC_COLLATE, "");
parse_options(argc, argv);
if (options->clean_cache) {
tns_init(&tns, NULL, NULL, NULL, NULL);
tns_clean_cache();
exit(EXIT_SUCCESS);
}
if (options->filecnt == 0 && !options->from_stdin) {
print_usage();
exit(EXIT_FAILURE);
}
if (options->recursive || options->from_stdin)
filecnt = 1024;
else
filecnt = options->filecnt;
files = ecalloc(filecnt, sizeof(*files));
fileidx = 0;
if (options->from_stdin) {
n = 0;
filename = NULL;
while (xgetline(&filename, &n))
check_add_file(filename, true);
free(filename);
}
for (i = 0; i < options->filecnt; i++) {
filename = options->filenames[i];
if (stat(filename, &fstats) < 0) {
error(0, errno, "%s", filename);
continue;
}
if (!S_ISDIR(fstats.st_mode)) {
check_add_file(filename, true);
} else {
if (r_opendir(&dir, filename, options->recursive) < 0) {
error(0, errno, "%s", filename);
continue;
}
start = fileidx;
while ((filename = r_readdir(&dir, true)) != NULL) {
check_add_file(filename, false);
free((void*) filename);
}
r_closedir(&dir);
if (fileidx - start > 1)
qsort(files + start, fileidx - start, sizeof(fileinfo_t), fncmp);
}
}
if (fileidx == 0)
error(EXIT_FAILURE, 0, "No valid image file given, aborting");
filecnt = fileidx;
fileidx = options->startnum < filecnt ? options->startnum : 0;
win_init(&win);
img_init(&img, &win);
arl_init(&arl);
if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || homedir[0] == '\0') {
homedir = getenv("HOME");
dsuffix = "/.config";
}
if (homedir != NULL) {
extcmd_t *cmd[] = { &info.f, &keyhandler.f, &wintitle.f };
const char *name[] = { "image-info", "key-handler", "win-title" };
const char *s = "/nsxiv/exec/";
for (i = 0; i < ARRLEN(cmd); i++) {
n = strlen(homedir) + strlen(dsuffix) + strlen(s) + strlen(name[i]) + 1;
cmd[i]->cmd = emalloc(n);
snprintf(cmd[i]->cmd, n, "%s%s%s%s", homedir, dsuffix, s, name[i]);
if (access(cmd[i]->cmd, X_OK) != 0)
cmd[i]->err = errno;
}
} else {
error(0, 0, "Exec directory not found");
}
info.fd = -1;
if (options->thumb_mode) {
mode = MODE_THUMB;
tns_init(&tns, files, &filecnt, &fileidx, &win);
while (!tns_load(&tns, fileidx, false, false))
remove_file(fileidx, false);
} else {
mode = MODE_IMAGE;
tns.thumbs = NULL;
load_image(fileidx);
}
win_open(&win);
win_set_cursor(&win, CURSOR_WATCH);
atexit(cleanup);
set_timeout(redraw, 25, false);
run();
return 0;
}