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@ -22,10 +22,14 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <signal.h>
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#include <sys/select.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <X11/keysym.h>
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#include "types.h"
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@ -38,8 +42,6 @@
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#include "config.h"
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enum {
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BAR_L_LEN = 512,
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BAR_R_LEN = 64,
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FILENAME_CNT = 1024,
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TITLE_LEN = 256
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};
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@ -70,12 +72,11 @@ int prefix;
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bool resized = false;
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const char * const INFO_SCRIPT = ".sxiv/exec/image-info";
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char *info_script;
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struct {
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char l[BAR_L_LEN];
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char r[BAR_R_LEN];
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} bar;
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char *script;
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int fd;
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unsigned int i, lastsep;
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} info;
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timeout_t timeouts[] = {
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{ { 0, 0 }, false, redraw },
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@ -212,35 +213,66 @@ bool check_timeouts(struct timeval *t)
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return tmin > 0;
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}
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void open_info(void)
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{
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static pid_t pid;
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int pfd[2];
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win.bar.l[0] = '\0';
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if (info.fd != -1) {
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close(info.fd);
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kill(pid, SIGTERM);
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while (waitpid(-1, NULL, WNOHANG) > 0);
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info.fd = -1;
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}
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if (info.script == NULL || pipe(pfd) < 0)
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return;
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pid = fork();
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if (pid > 0) {
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close(pfd[1]);
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fcntl(pfd[0], F_SETFL, O_NONBLOCK);
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info.fd = pfd[0];
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info.i = info.lastsep = 0;
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} else if (pid == 0) {
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close(pfd[0]);
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dup2(pfd[1], 1);
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execl(info.script, info.script, files[fileidx].name, NULL);
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}
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}
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void read_info(void)
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{
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char cmd[4096];
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FILE *outp;
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int c, i = 0, n = sizeof(bar.l) - 1;
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bool lastsep = false;
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if (info_script != NULL) {
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snprintf(cmd, sizeof(cmd), "%s \"%s\"", info_script, files[fileidx].name);
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outp = popen(cmd, "r");
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if (outp == NULL)
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ssize_t i, n;
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char buf[BAR_L_LEN];
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while (true) {
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n = read(info.fd, buf, sizeof(buf));
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if (n < 0 && errno == EAGAIN)
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return;
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else if (n == 0)
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goto end;
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while (i < n && (c = fgetc(outp)) != EOF) {
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if (c == '\n') {
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if (!lastsep) {
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bar.l[i++] = ' ';
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lastsep = true;
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for (i = 0; i < n; i++) {
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if (buf[i] == '\n') {
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if (info.lastsep == 0) {
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win.bar.l[info.i++] = ' ';
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info.lastsep = 1;
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}
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} else {
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bar.l[i++] = c;
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lastsep = false;
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win.bar.l[info.i++] = buf[i];
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info.lastsep = 0;
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}
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if (info.i + 1 == sizeof(win.bar.l))
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goto end;
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}
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pclose(outp);
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}
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end:
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if (lastsep)
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i--;
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bar.l[i] = '\0';
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info.i -= info.lastsep;
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win.bar.l[info.i] = '\0';
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win_update_bar(&win);
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info.fd = -1;
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while (waitpid(-1, NULL, WNOHANG) > 0);
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}
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void load_image(int new)
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@ -261,7 +293,7 @@ void load_image(int new)
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alternate = fileidx;
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fileidx = new;
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read_info();
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open_info();
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if (img.multi.cnt > 0 && img.multi.animate)
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set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
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@ -271,9 +303,10 @@ void load_image(int new)
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void update_info(void)
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{
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unsigned int i, fn, fw, n, len = sizeof(bar.r);
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int sel;
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char *t = bar.r, title[TITLE_LEN];
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unsigned int i, fn, fw, n;
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unsigned int llen = sizeof(win.bar.l), rlen = sizeof(win.bar.r);
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char *lt = win.bar.l, *rt = win.bar.r, title[TITLE_LEN];
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bool ow_info;
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for (fw = 0, i = filecnt; i > 0; fw++, i /= 10);
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@ -283,39 +316,37 @@ void update_info(void)
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win_set_title(&win, "sxiv");
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if (tns.cnt == filecnt) {
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n = snprintf(t, len, "%0*d/%d", fw, sel + 1, filecnt);
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n = snprintf(rt, rlen, "%0*d/%d", fw, sel + 1, filecnt);
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ow_info = true;
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} else {
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snprintf(bar.l, sizeof(bar.l), "Loading... %0*d/%d",
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fw, tns.cnt, filecnt);
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bar.r[0] = '\0';
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snprintf(lt, llen, "Loading... %0*d/%d", fw, tns.cnt, filecnt);
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rt[0] = '\0';
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ow_info = false;
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}
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} else {
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snprintf(title, sizeof(title), "sxiv - %s", files[sel].name);
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win_set_title(&win, title);
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n = snprintf(t, len, "%3d%% ", (int) (img.zoom * 100.0));
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n = snprintf(rt, rlen, "%3d%% ", (int) (img.zoom * 100.0));
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if (img.multi.cnt > 0) {
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for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
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n += snprintf(t + n, len - n, "(%0*d/%d) ",
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n += snprintf(rt + n, rlen - n, "(%0*d/%d) ",
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fn, img.multi.sel + 1, img.multi.cnt);
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}
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n += snprintf(t + n, len - n, "%0*d/%d", fw, sel + 1, filecnt);
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ow_info = bar.l[0] == '\0';
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n += snprintf(rt + n, rlen - n, "%0*d/%d", fw, sel + 1, filecnt);
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ow_info = info.script == NULL;
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}
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if (ow_info) {
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fn = strlen(files[sel].name);
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if (fn < sizeof(bar.l) &&
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if (fn < llen &&
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win_textwidth(files[sel].name, fn, true) +
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win_textwidth(bar.r, n, true) < win.w)
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win_textwidth(rt, n, true) < win.w)
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{
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strncpy(bar.l, files[sel].name, sizeof(bar.l));
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strncpy(lt, files[sel].name, llen);
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} else {
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strncpy(bar.l, files[sel].base, sizeof(bar.l));
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strncpy(lt, files[sel].base, llen);
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}
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}
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win_set_bar_info(&win, bar.l, bar.r);
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}
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void redraw(void)
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@ -458,8 +489,8 @@ void run(void)
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int xfd;
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fd_set fds;
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struct timeval timeout;
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bool discard, to_set;
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XEvent ev, nextev;
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bool discard;
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redraw();
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@ -482,12 +513,20 @@ void run(void)
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check_timeouts(NULL);
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}
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while (XPending(win.env.dpy) == 0 && check_timeouts(&timeout)) {
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/* wait for timeouts */
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while (XPending(win.env.dpy) == 0
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&& ((to_set = check_timeouts(&timeout)) || info.fd != -1))
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{
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/* check for timeouts & input */
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xfd = ConnectionNumber(win.env.dpy);
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FD_ZERO(&fds);
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FD_SET(xfd, &fds);
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select(xfd + 1, &fds, 0, 0, &timeout);
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if (info.fd != -1) {
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FD_SET(info.fd, &fds);
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xfd = MAX(xfd, info.fd);
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}
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select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
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if (FD_ISSET(info.fd, &fds))
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read_info();
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}
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do {
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@ -641,13 +680,14 @@ int main(int argc, char **argv)
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warn("could not locate home directory");
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} else {
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len = strlen(homedir) + strlen(INFO_SCRIPT) + 2;
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info_script = (char*) s_malloc(len);
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snprintf(info_script, len, "%s/%s", homedir, INFO_SCRIPT);
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if (access(info_script, X_OK) != 0) {
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free(info_script);
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info_script = NULL;
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info.script = (char*) s_malloc(len);
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snprintf(info.script, len, "%s/%s", homedir, INFO_SCRIPT);
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if (access(info.script, X_OK) != 0) {
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free(info.script);
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info.script = NULL;
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}
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}
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info.fd = -1;
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if (options->thumb_mode) {
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mode = MODE_THUMB;
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