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Optimize saving, matching old entry

This commit is contained in:
Arun Prakash Jana 2017-12-24 23:23:52 +05:30
parent 78f544c41d
commit c0255db4f1
No known key found for this signature in database
GPG Key ID: A75979F35C080412
1 changed files with 45 additions and 35 deletions
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nnn.c
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@ -171,6 +171,7 @@ disabledbg()
#define printwarn() printmsg(strerror(errno))
#define istopdir(path) (path[1] == '\0' && path[0] == '/')
#define copyfilter() xstrlcpy(fltr, ifilter, NAME_MAX)
#define copycurname() xstrlcpy(oldname, dents[cur].name, NAME_MAX + 1)
#define settimeout() timeout(1000)
#define cleartimeout() timeout(-1)
#define errexit() printerr(__LINE__)
@ -425,6 +426,7 @@ xstrcmp(const char *s1, const char *s2)
/*
* The poor man's implementation of memrchr(3).
* We are only looking for '/' in this program.
* And we are NOT expecting a '/' at the end.
* Ideally 0 < n <= strlen(s).
*/
static void *
@ -506,6 +508,15 @@ xdirname(const char *path)
return buf;
}
static char *
xbasename(char *path)
{
static char *base;
base = xmemrchr((uchar *)path, '/', xstrlen(path));
return base ? base + 1 : path;
}
/*
* Return number of dots if all chars in a string are dots, else 0
*/
@ -1952,26 +1963,24 @@ dentfree(struct entry *dents)
/* Return the position of the matching entry or 0 otherwise */
static int
dentfind(struct entry *dents, char *path, int n)
dentfind(struct entry *dents, const char *fname, int n)
{
static int i;
static char *p;
if (!path)
if (!fname)
return 0;
p = basename(path);
DPRINTF_S(p);
DPRINTF_S(fname);
for (i = 0; i < n; ++i)
if (xstrcmp(p, dents[i].name) == 0)
if (xstrcmp(fname, dents[i].name) == 0)
return i;
return 0;
}
static int
populate(char *path, char *oldpath, char *fltr)
populate(char *path, char *oldname, char *fltr)
{
static regex_t re;
@ -2005,7 +2014,7 @@ populate(char *path, char *oldpath, char *fltr)
#endif
/* Find cur from history */
cur = dentfind(dents, oldpath, ndents);
cur = dentfind(dents, oldname, ndents);
return 0;
}
@ -2140,8 +2149,9 @@ redraw(char *path)
static void
browse(char *ipath, char *ifilter)
{
static char path[PATH_MAX], oldpath[PATH_MAX], newpath[PATH_MAX], lastdir[PATH_MAX], mark[PATH_MAX];
static char path[PATH_MAX], newpath[PATH_MAX], lastdir[PATH_MAX], mark[PATH_MAX];
static char fltr[NAME_MAX + 1];
static char oldname[NAME_MAX + 1];
char *dir, *tmp, *run = NULL, *env = NULL;
struct stat sb;
int r, fd, presel;
@ -2150,7 +2160,7 @@ browse(char *ipath, char *ifilter)
xstrlcpy(path, ipath, PATH_MAX);
copyfilter();
oldpath[0] = newpath[0] = lastdir[0] = mark[0] = '\0';
oldname[0] = newpath[0] = lastdir[0] = mark[0] = '\0';
if (cfg.filtermode)
presel = FILTER;
@ -2177,7 +2187,7 @@ begin:
}
#endif
if (populate(path, oldpath, fltr) == -1) {
if (populate(path, oldname, fltr) == -1) {
printwarn();
goto nochange;
}
@ -2221,7 +2231,7 @@ nochange:
}
/* Save history */
xstrlcpy(oldpath, path, PATH_MAX);
xstrlcpy(oldname, xbasename(path), NAME_MAX + 1);
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
@ -2267,7 +2277,7 @@ nochange:
dir_changed = TRUE;
xstrlcpy(path, newpath, PATH_MAX);
oldpath[0] = '\0';
oldname[0] = '\0';
/* Reset filter */
copyfilter();
if (cfg.filtermode)
@ -2432,7 +2442,7 @@ nochange:
* We mark the current dir in parent dir
*/
if (r == 1) {
xstrlcpy(oldpath, path, PATH_MAX);
xstrlcpy(oldname, xbasename(path), NAME_MAX + 1);
truecd = 2;
}
@ -2451,10 +2461,10 @@ nochange:
if (xstrcmp(path, newpath) == 0)
break;
oldpath[0] = '\0';
oldname[0] = '\0';
} else if (truecd == 1)
/* Sure change in dir */
oldpath[0] = '\0';
oldname[0] = '\0';
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
@ -2493,7 +2503,7 @@ nochange:
dir_changed = TRUE;
xstrlcpy(path, dir, PATH_MAX);
oldpath[0] = '\0';
oldname[0] = '\0';
/* Reset filter */
copyfilter();
DPRINTF_S(path);
@ -2522,7 +2532,7 @@ nochange:
xstrlcpy(lastdir, path, PATH_MAX);
dir_changed = TRUE;
xstrlcpy(path, newpath, PATH_MAX);
oldpath[0] = '\0';
oldname[0] = '\0';
/* Reset filter */
copyfilter();
DPRINTF_S(path);
@ -2547,7 +2557,7 @@ nochange:
if (xstrcmp(path, newpath) == 0)
break;
oldpath[0] = '\0';
oldname[0] = '\0';
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
@ -2573,7 +2583,7 @@ nochange:
DPRINTF_S(fltr);
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto nochange;
case SEL_MFLTR:
cfg.filtermode ^= 1;
@ -2595,18 +2605,18 @@ nochange:
cfg.showdetail ? (printptr = &printent_long) : (printptr = &printent);
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto begin;
case SEL_STATS:
if (ndents > 0) {
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
mkpath(path, dents[cur].name, newpath, PATH_MAX);
if (lstat(oldpath, &sb) == -1) {
if (lstat(newpath, &sb) == -1) {
if (dents)
dentfree(dents);
errexit();
} else {
if (show_stats(oldpath, dents[cur].name, &sb) < 0) {
if (show_stats(newpath, dents[cur].name, &sb) < 0) {
printwarn();
goto nochange;
}
@ -2618,12 +2628,12 @@ nochange:
case SEL_MEDIA: // fallthrough
case SEL_FMEDIA:
if (ndents > 0) {
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
mkpath(path, dents[cur].name, newpath, PATH_MAX);
if (sel == SEL_MEDIA || sel == SEL_FMEDIA)
r = show_mediainfo(oldpath, run);
r = show_mediainfo(newpath, run);
else
r = handle_archive(oldpath, run, path);
r = handle_archive(newpath, run, path);
if (r == -1) {
if (sel == SEL_MEDIA || sel == SEL_FMEDIA)
@ -2650,7 +2660,7 @@ nochange:
cfg.blkorder = 0;
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto begin;
case SEL_BSIZE:
cfg.blkorder ^= 1;
@ -2662,7 +2672,7 @@ nochange:
cfg.sizeorder = 0;
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto begin;
case SEL_MTIME:
cfg.mtimeorder ^= 1;
@ -2670,12 +2680,12 @@ nochange:
cfg.blkorder = 0;
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto begin;
case SEL_REDRAW:
/* Save current */
if (ndents > 0)
mkpath(path, dents[cur].name, oldpath, PATH_MAX);
copycurname();
goto begin;
case SEL_COPY:
if (copier && ndents) {
@ -2696,7 +2706,7 @@ nochange:
break;
/* Allow only relative, same dir paths */
if (tmp[0] == '/' || xstrcmp(basename(tmp), tmp) != 0) {
if (tmp[0] == '/' || xstrcmp(xbasename(tmp), tmp) != 0) {
printmsg(STR_INPUT);
goto nochange;
}
@ -2736,7 +2746,7 @@ nochange:
}
close(fd);
mkpath(path, tmp, oldpath, PATH_MAX);
xstrlcpy(oldname, tmp, NAME_MAX + 1);
goto begin;
case SEL_RENAME:
if (ndents <= 0)
@ -2749,7 +2759,7 @@ nochange:
break;
/* Allow only relative, same dir paths */
if (tmp[0] == '/' || xstrcmp(basename(tmp), tmp) != 0) {
if (tmp[0] == '/' || xstrcmp(xbasename(tmp), tmp) != 0) {
printmsg(STR_INPUT);
goto nochange;
}
@ -2786,7 +2796,7 @@ nochange:
}
close(fd);
mkpath(path, tmp, oldpath, PATH_MAX);
xstrlcpy(oldname, tmp, NAME_MAX + 1);
goto begin;
case SEL_HELP:
show_help(path);