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signal() semantics are pretty unclearly specified. For example, depending on OS kernel and libc, the handler may be returned to SIG_DFL (hence the inner call to read the signal handler). Moving to sigaction() means the behaviour is consistently defined. Using SA_NOCLDWAIT also allows us to avoid calling the non-reentrant function die() in the handler. Some addditional notes for archival purposes: * NRK pointed out errno of waitpid could also theoretically get clobbered. * The original patch was iterated on and modified by NRK and Hiltjo: * SIG_DFL was changed to SIG_IGN, this is required, atleast on older systems such as tested on Slackware 11. * signals are not blocked using sigprocmask, because in theory it would briefly for example also ignore a SIGTERM signal. It is OK if waitpid() is (in theory interrupted). POSIX reference: "Consequences of Process Termination": https://pubs.opengroup.org/onlinepubs/9699919799/functions/_Exit.html#tag_16_01_03_01
|1 week ago|
|LICENSE||9 months ago|
|Makefile||5 years ago|
|README||5 years ago|
|config.def.h||3 months ago|
|config.mk||4 months ago|
|drw.c||5 months ago|
|drw.h||9 months ago|
|dwm.1||3 years ago|
|dwm.c||1 week ago|
|dwm.png||17 years ago|
|transient.c||12 years ago|
|util.c||6 months ago|
|util.h||7 years ago|
dwm - dynamic window manager
dwm is an extremely fast, small, and dynamic window manager for X.
In order to build dwm you need the Xlib header files.
Edit config.mk to match your local setup (dwm is installed into
the /usr/local namespace by default).
Afterwards enter the following command to build and install dwm (if
necessary as root):
make clean install
Add the following line to your .xinitrc to start dwm using startx:
In order to connect dwm to a specific display, make sure that
the DISPLAY environment variable is set correctly, e.g.:
DISPLAY=foo.bar:1 exec dwm
(This will start dwm on display :1 of the host foo.bar.)
In order to display status info in the bar, you can do something
like this in your .xinitrc:
while xsetroot -name "`date` `uptime | sed 's/.*,//'`"
The configuration of dwm is done by creating a custom config.h
and (re)compiling the source code.