openrc.git/src/supervise-daemon, branch master

openrc: rework pathing functions

2023-10-19T08:56:54+00:00

this simplifies the allocation of path string. also fixes some memory leaks from the ealier commit also changes the log path for users to XDG_CACHE_HOME, default ~/.cache/openrc Signed-off-by: Anna (navi) Figueiredo Gomes

openrc: Add support for user services.

2023-10-19T08:56:54+00:00

Modifies many functions where filesystem paths were hardcoded. In non-user-services mode, they still are. In user-services mode, they are allocated, since XDG_ dirs are to be set via environment variables. Signed-off-by: Anna (navi) Figueiredo Gomes

Relocate pipes.c and pipes.h file to shared directory.

2023-10-03T21:43:39+00:00

With the addition of logger process redirect in supervise-daemon, pipes.c and pipes.h are now included in both s-s-d and supervise-daemon. Thus it makes sense to move the source files to the src/shared dir.

supervise-daemon: implement output_logger and error_logger.

2023-10-03T21:43:39+00:00

Allows redirecting process stdin and stdout to another process, just like is already possible with start-stop-daemon. Also added --stdout-logger and --stderr-logger to the man page.

misc: add cloexec_fds_from() helper function

2023-09-13T03:53:12+00:00

Move logic to set file descriptors to a cloexec_fds_from() function in misc.c so it can be shared by both supervisor-daemon and start-stop-daemon, and hide the details behind.

supervise-daemon: rename HAVE_CLOSE_RANGE_EXEC to HAVE_CLOSE_RANGE

2023-09-13T03:53:12+00:00

Use HAVE_CLOSE_RANGE to tell if system provides a close_range(2) wrapper, which better explains the purpose. Add a compat inline which returns -1 if close_range is unavailable.

Rename attribute macros to namespaced RC_*

2023-04-19T20:44:51+00:00

This conflicts with linux-headers which uses __unused for some padding members on ppc64le at least. Closes: https://github.com/OpenRC/openrc/issues/622

supervise-daemon: missing includes from IWYU

2023-01-29T17:32:22+00:00

supervise-daemon: mark various functions as noreturn

2023-01-25T05:50:43+00:00

For -Wmissing-noreturn.

start-stop-daemon, supervise-daemon: use closefrom()/close_range()

2023-01-21T03:44:37+00:00

On systems with a very large RLIMIT_NOFILE, calling close() in a loop from 3 to getdtablesize() effects an enormous number of system calls. There are better alternatives. Both BSD and Linux have the closefrom() system call that closes all file descriptors with indices not less than a specified minimum. Have start-stop-daemon call closefrom() on systems where it's implemented, falling back to the old loop elsewhere. Likewise, calling fcntl(i, F_SETFD, FD_CLOEXEC) in a loop from 3 to getdtablesize() raises a similar performance concern. Linux 5.11 and onward has a close_range() system call with a CLOSE_RANGE_CLOEXEC flag that sets the FD_CLOEXEC flag on all file descriptors in a specified range. Have supervise-daemon utilize this feature on systems where it's implemented, falling back to the old loop elsewhere.