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These man pages list references to the various sd_event_add_xyz() calls
at the bottom, but sd_event_add_inotify() was never added there.
Moreover, some list references to sd_event_add_post() and
sd_event_add_exit() even though these have shared man pages with
sd_event_add_defer(), and given that the "SEE ALSO" section should
probably reference pages instead of functions let's drop this.
Then, let's always specify the sd_event_add_xyz() calls in the same
order.
Finally, in the sd_event_new(3) text explaining the basic logic,
actually mention sd_event_add_post() and sd_event_add_exit() as well, as
in that case we actually want to list functions, not man pages.
Also, while we are at it, beef it up, by adding json-seq support (i.e.
https://tools.ietf.org/html/rfc7464). This is particularly useful in
conjunction with jq's --seq switch.
This reverts commit 56f56d5ad8.
This broke the compilation for coverity under travis. Our build script does
something like this:
$ CFLAGS='-D_Float128=long\ double -D_Float64=double -D_Float64x=long\ double -D_Float32=float -D_Float32x=double' meson cov-build -Dman=false
$ ninja -C build
...
[pid 27096] execve("/usr/bin/cc", ["/usr/bin/cc", "-D_Float128=long", "double", "-D_Float64=double", "-D_Float64x=long", "double", "-D_Float32=float", "-D_Float32x=double", "-E", "-dM", "-include", "linux/capability.h", "-include", "config.h", "-include", "../src/basic/missing.h", "-"], 0x55ab75ea4e80 /* 91 vars */) = 0
cc: error: double: No such file or directory
cc: error: double: No such file or directory
[pid 27096] +++ exited with 1 +++
I'm sure this could be fixed somehow, but since the original motivation for
56f56d5ad8 wasn't very strong, let's just revert
it as this seems to be the simplest solution.
If a memory error occurred, we would still go through the path which sets the
error on ferror(). It is unlikely that ferror() returns true, but it's seems
cleaner to just propagate the error we already have.
The handling of fgets() returning NULL is also simplified: according to the man
page, it returns NULL only on EOF or error. So if feof() returns true, I don't
think we should call ferror() again.
While at it, let's set errno to 0 and check that it is set before returning it
as an error. The man pages for fgets() and feof() do not say anything about
setting errno.
Here the behaviour is nominally changed, because we will decrease the
counter on error. But the only caller quits the program if error occurs,
so this makes no practical difference.
A new switch "-j" or "--json=" is added which transforms dbus
marshalling into json. This is extremely useful in combination with
tools such as "jq" to process bus calls further.
Mempool use is enabled or disabled based on the mempool_use_allowed symbol that
is linked in.
Should fix assert crashes in external programs caused by #9792.
Replaces #10286.
v2:
- use two different source files instead of a gcc constructor
linux/capability.h's CAP_TO_MASK potentially shifts a signed int "1"
(i.e. 32bit wide) left by 31 which means it becomes negative. That's
just weird, and ubsan complains about it. Let's introduce our own macro
CAP_TO_MASK_CORRECTED which doesn't fall into this trap, and make use of
it.
Fixes: #10347
As preparation for OCI support in nspawn, let's add a JSON parser.
The json.h file contains an explanation why this is new code instead of
just us linking against an existing JSON library.
