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Selection-specific scratch buffer

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Arun Prakash Jana 2021-07-18 11:45:50 +05:30
parent 29a7a25445
commit 3b5800fc7a
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GPG key ID: A75979F35C080412
1 changed files with 18 additions and 15 deletions
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33
src/nnn.c
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@ -492,6 +492,9 @@ static struct sigaction oldsigwinch;
/* For use in functions which are isolated and don't return the buffer */
static char g_buf[CMD_LEN_MAX] __attribute__ ((aligned));
/* For use as a scratch buffer in selection manipulation */
static char g_sel[PATH_MAX] __attribute__ ((aligned));
/* Buffer to store tmp file path to show selection, file stats and help */
static char g_tmpfpath[TMP_LEN_MAX] __attribute__ ((aligned));
@ -1540,12 +1543,12 @@ static char *findinsel(char *startpos, int len)
* memmem(3):
* This function is not specified in POSIX.1, but is present on a number of other systems.
*/
found = memmem(found, buflen - (found - startpos), g_buf, len);
found = memmem(found, buflen - (found - startpos), g_sel, len);
if (!found)
return NULL;
if (found == startpos || *(found - 1) == '\0')
return found;
/* We found g_buf as a substring of a path, move forward */
/* We found g_sel as a substring of a path, move forward */
found += len;
if (found >= startpos + buflen)
return NULL;
@ -1560,10 +1563,10 @@ static int markcmp(const void *va, const void *vb)
return ma->startpos - mb->startpos;
}
static inline void findmarkentry(const char *path, struct entry *dentp)
static inline void findmarkentry(size_t len, struct entry *dentp)
{
if (!(dentp->flags & FILE_SCANNED)) {
if (findinsel(findselpos, mkpath(path, dentp->name, g_buf)))
if (findinsel(findselpos, len + xstrsncpy(g_sel + len, dentp->name, dentp->nlen)))
dentp->flags |= FILE_SELECTED;
dentp->flags |= FILE_SCANNED;
}
@ -1576,7 +1579,7 @@ static inline void findmarkentry(const char *path, struct entry *dentp)
static void invertselbuf(const int pathlen)
{
size_t len, endpos, shrinklen = 0, alloclen = 0;
char * const pbuf = g_buf + pathlen;
char * const pbuf = g_sel + pathlen;
char *found;
int i, nmarked = 0, prev = 0;
struct entry *dentp;
@ -1682,7 +1685,7 @@ static void invertselbuf(const int pathlen)
for (i = 0; i < ndents; ++i) {
if (pdents[i].flags & FILE_SELECTED) {
len = pathlen + xstrsncpy(pbuf, pdents[i].name, NAME_MAX);
appendfpath(g_buf, len);
appendfpath(g_sel, len);
++nselected;
}
}
@ -1700,7 +1703,7 @@ static void addtoselbuf(const int pathlen, int startid, int endid)
size_t len, alloclen = 0;
struct entry *dentp;
char *found;
char * const pbuf = g_buf + pathlen;
char * const pbuf = g_sel + pathlen;
/* Remember current selection buffer position */
for (i = startid; i <= endid; ++i) {
@ -1727,7 +1730,7 @@ static void addtoselbuf(const int pathlen, int startid, int endid)
for (i = startid; i <= endid; ++i) {
if (!(pdents[i].flags & FILE_SELECTED)) {
len = pathlen + xstrsncpy(pbuf, pdents[i].name, NAME_MAX);
appendfpath(g_buf, len);
appendfpath(g_sel, len);
++nselected;
pdents[i].flags |= (FILE_SCANNED | FILE_SELECTED);
}
@ -1736,7 +1739,7 @@ static void addtoselbuf(const int pathlen, int startid, int endid)
writesel(pselbuf, selbufpos - 1); /* Truncate NULL from end */
}
/* Removes g_buf from selbuf */
/* Removes g_sel from selbuf */
static void rmfromselbuf(size_t len)
{
char *found = findinsel(findselpos, len);
@ -1752,14 +1755,14 @@ static void rmfromselbuf(size_t len)
static int scanselforpath(const char *path, bool getsize)
{
if (!path[1]) { /* path should always be at least two bytes (including NULL) */
g_buf[0] = '/';
g_sel[0] = '/';
findselpos = pselbuf;
return 1; /* Length of '/' is 1 */
}
size_t off = xstrsncpy(g_buf, path, PATH_MAX);
size_t off = xstrsncpy(g_sel, path, PATH_MAX);
g_buf[off - 1] = '/';
g_sel[off - 1] = '/';
/*
* We set findselpos only here. Directories can be listed in arbitrary order.
* This is the best best we can do for remembering position.
@ -2436,7 +2439,7 @@ static void xrmfromsel(char *path, char *fpath)
clearselection();
else if (pdents[cur].flags & FILE_SELECTED) {
--nselected;
rmfromselbuf(mkpath(path, pdents[cur].name, g_buf));
rmfromselbuf(mkpath(path, pdents[cur].name, g_sel));
}
#ifndef NOX11
else
@ -6276,7 +6279,7 @@ static void redraw(char *path)
move(++j, 0);
if (len)
findmarkentry(path, &pdents[i]);
findmarkentry(len, &pdents[i]);
printent(&pdents[i], ncols, i == cur);
}
@ -7075,7 +7078,7 @@ nochange:
writesel(pselbuf, selbufpos - 1); /* Truncate NULL from end */
} else {
--nselected;
rmfromselbuf(mkpath(path, pdents[cur].name, g_buf));
rmfromselbuf(mkpath(path, pdents[cur].name, g_sel));
}
#ifndef NOX11