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Major bugfix related to pidfile

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This commit is contained in:
Ashish Kumar Yadav 2021-01-10 05:26:10 +05:30
parent ef4238d88e
commit d021510bad
4 changed files with 55 additions and 29 deletions
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4
dwmblocks.c
View file

@ -326,14 +326,14 @@ writepid()
int fd; int fd;
struct flock fl; struct flock fl;
fd = open(LOCKFILE, O_RDWR|O_CREAT, 0644); fd = open(LOCKFILE, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (fd == -1) { if (fd == -1) {
perror("writepid - open"); perror("writepid - open");
exit(1); exit(1);
} }
fl.l_type = F_WRLCK; fl.l_type = F_WRLCK;
fl.l_start = 0;
fl.l_whence = SEEK_SET; fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0; fl.l_len = 0;
if (fcntl(fd, F_SETLK, &fl) == -1) { if (fcntl(fd, F_SETLK, &fl) == -1) {
if (errno == EACCES || errno == EAGAIN) { if (errno == EACCES || errno == EAGAIN) {

34
patches/dwm-dwmblocks-6.2.diff
View file

@ -43,7 +43,7 @@ diff -ruN dwm-6.2-ori/config.def.h dwm-6.2/config.def.h
{ ClkClientWin, MODKEY, Button3, resizemouse, {0} }, { ClkClientWin, MODKEY, Button3, resizemouse, {0} },
diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
--- dwm-6.2-ori/dwm.c 2019-02-02 18:25:28.000000000 +0530 --- dwm-6.2-ori/dwm.c 2019-02-02 18:25:28.000000000 +0530
+++ dwm-6.2/dwm.c 2020-12-30 16:24:10.847012386 +0530 +++ dwm-6.2/dwm.c 2021-01-10 05:23:06.472038418 +0530
@@ -40,6 +40,7 @@ @@ -40,6 +40,7 @@
#include <X11/extensions/Xinerama.h> #include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */ #endif /* XINERAMA */
@ -277,28 +277,40 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
cursor[CurResize] = drw_cur_create(drw, XC_sizing); cursor[CurResize] = drw_cur_create(drw, XC_sizing);
cursor[CurMove] = drw_cur_create(drw, XC_fleur); cursor[CurMove] = drw_cur_create(drw, XC_fleur);
/* init appearance */ /* init appearance */
@@ -1637,6 +1689,28 @@ @@ -1637,6 +1689,40 @@
} }
void void
+sigdwmblocks(const Arg *arg) +sigdwmblocks(const Arg *arg)
+{ +{
+ int fd; + static int fd = -1;
+ struct flock fl; + struct flock fl;
+ union sigval sv; + union sigval sv;
+ +
+ if (!dwmblockssig) + if (!dwmblockssig)
+ return; + return;
+ sv.sival_int = (dwmblockssig << 8) | arg->i;
+ fd = open(DWMBLOCKSLOCKFILE, O_RDONLY);
+ if (fd == -1)
+ return;
+ fl.l_type = F_WRLCK; + fl.l_type = F_WRLCK;
+ fl.l_start = 0;
+ fl.l_whence = SEEK_SET; + fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0; + fl.l_len = 0;
+ if (fd == -1) {
+ if ((fd = open(DWMBLOCKSLOCKFILE, O_RDONLY)) == -1)
+ return;
+ if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK) + if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK)
+ return; + return;
+ } else {
+ if (fcntl(fd, F_GETLK, &fl) == -1)
+ return;
+ if (fl.l_type == F_UNLCK) {
+ close(fd);
+ if ((fd = open(DWMBLOCKSLOCKFILE, O_RDONLY)) == -1)
+ return;
+ fl.l_type = F_WRLCK;
+ if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK)
+ return;
+ }
+ }
+ sv.sival_int = (dwmblockssig << 8) | arg->i;
+ sigqueue(fl.l_pid, SIGRTMIN, sv); + sigqueue(fl.l_pid, SIGRTMIN, sv);
+} +}
+ +
@ -306,7 +318,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
spawn(const Arg *arg) spawn(const Arg *arg)
{ {
if (arg->v == dmenucmd) if (arg->v == dmenucmd)
@@ -1805,7 +1879,7 @@ @@ -1805,7 +1891,7 @@
XSetWindowAttributes wa = { XSetWindowAttributes wa = {
.override_redirect = True, .override_redirect = True,
.background_pixmap = ParentRelative, .background_pixmap = ParentRelative,
@ -315,7 +327,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
}; };
XClassHint ch = {"dwm", "dwm"}; XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) { for (m = mons; m; m = m->next) {
@@ -1847,6 +1921,41 @@ @@ -1847,6 +1933,41 @@
(unsigned char *) &(c->win), 1); (unsigned char *) &(c->win), 1);
} }
@ -357,7 +369,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
int int
updategeom(void) updategeom(void)
{ {
@@ -1987,9 +2096,27 @@ @@ -1987,9 +2108,27 @@
void void
updatestatus(void) updatestatus(void)
{ {

34
patches/dwm-systray-dwmblocks-6.2.diff
View file

@ -43,7 +43,7 @@ diff -ruN dwm-6.2-ori/config.def.h dwm-6.2/config.def.h
{ ClkClientWin, MODKEY, Button3, resizemouse, {0} }, { ClkClientWin, MODKEY, Button3, resizemouse, {0} },
diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
--- dwm-6.2-ori/dwm.c 2020-08-17 23:51:19.057243495 +0530 --- dwm-6.2-ori/dwm.c 2020-08-17 23:51:19.057243495 +0530
+++ dwm-6.2/dwm.c 2020-12-30 16:26:04.168439847 +0530 +++ dwm-6.2/dwm.c 2021-01-10 05:24:06.575894250 +0530
@@ -40,6 +40,7 @@ @@ -40,6 +40,7 @@
#include <X11/extensions/Xinerama.h> #include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */ #endif /* XINERAMA */
@ -314,28 +314,40 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
cursor[CurResize] = drw_cur_create(drw, XC_sizing); cursor[CurResize] = drw_cur_create(drw, XC_sizing);
cursor[CurMove] = drw_cur_create(drw, XC_fleur); cursor[CurMove] = drw_cur_create(drw, XC_fleur);
/* init appearance */ /* init appearance */
@@ -1825,6 +1881,28 @@ @@ -1825,6 +1881,40 @@
} }
void void
+sigdwmblocks(const Arg *arg) +sigdwmblocks(const Arg *arg)
+{ +{
+ int fd; + static int fd = -1;
+ struct flock fl; + struct flock fl;
+ union sigval sv; + union sigval sv;
+ +
+ if (!dwmblockssig) + if (!dwmblockssig)
+ return; + return;
+ sv.sival_int = (dwmblockssig << 8) | arg->i;
+ fd = open(DWMBLOCKSLOCKFILE, O_RDONLY);
+ if (fd == -1)
+ return;
+ fl.l_type = F_WRLCK; + fl.l_type = F_WRLCK;
+ fl.l_start = 0;
+ fl.l_whence = SEEK_SET; + fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0; + fl.l_len = 0;
+ if (fd == -1) {
+ if ((fd = open(DWMBLOCKSLOCKFILE, O_RDONLY)) == -1)
+ return;
+ if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK) + if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK)
+ return; + return;
+ } else {
+ if (fcntl(fd, F_GETLK, &fl) == -1)
+ return;
+ if (fl.l_type == F_UNLCK) {
+ close(fd);
+ if ((fd = open(DWMBLOCKSLOCKFILE, O_RDONLY)) == -1)
+ return;
+ fl.l_type = F_WRLCK;
+ if (fcntl(fd, F_GETLK, &fl) == -1 || fl.l_type == F_UNLCK)
+ return;
+ }
+ }
+ sv.sival_int = (dwmblockssig << 8) | arg->i;
+ sigqueue(fl.l_pid, SIGRTMIN, sv); + sigqueue(fl.l_pid, SIGRTMIN, sv);
+} +}
+ +
@ -343,7 +355,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
spawn(const Arg *arg) spawn(const Arg *arg)
{ {
if (arg->v == dmenucmd) if (arg->v == dmenucmd)
@@ -2011,7 +2089,7 @@ @@ -2011,7 +2101,7 @@
XSetWindowAttributes wa = { XSetWindowAttributes wa = {
.override_redirect = True, .override_redirect = True,
.background_pixmap = ParentRelative, .background_pixmap = ParentRelative,
@ -352,7 +364,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
}; };
XClassHint ch = {"dwm", "dwm"}; XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) { for (m = mons; m; m = m->next) {
@@ -2058,6 +2136,41 @@ @@ -2058,6 +2148,41 @@
(unsigned char *) &(c->win), 1); (unsigned char *) &(c->win), 1);
} }
@ -394,7 +406,7 @@ diff -ruN dwm-6.2-ori/dwm.c dwm-6.2/dwm.c
int int
updategeom(void) updategeom(void)
{ {
@@ -2198,10 +2311,27 @@ @@ -2198,10 +2323,27 @@
void void
updatestatus(void) updatestatus(void)
{ {

4
sigdwmblocks.c
View file

@ -60,13 +60,15 @@ sendsignal(int sig, union sigval sv)
exit(1); exit(1);
} }
fl.l_type = F_WRLCK; fl.l_type = F_WRLCK;
fl.l_start = 0;
fl.l_whence = SEEK_SET; fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0; fl.l_len = 0;
if (fcntl(fd, F_GETLK, &fl) == -1) { if (fcntl(fd, F_GETLK, &fl) == -1) {
perror("sendsignal - fcntl"); perror("sendsignal - fcntl");
close(fd);
exit(1); exit(1);
} }
close(fd);
if (fl.l_type == F_UNLCK) { if (fl.l_type == F_UNLCK) {
fputs("Error: no running instance of dwmblocks.\n", stderr); fputs("Error: no running instance of dwmblocks.\n", stderr);
exit(3); exit(3);