The sd-event is a event loop framework similar to libev, libuv, libevent, etc, I need to implement libev event loop for monitoring services. All the man pages I can find talk about the use of sd_bus_get_fd(), sd_bus_get_events() and sd_bus_get_timeout(), for example, on this page. Does anyone have a project example for using those three functions?
- I noticed this issue sometime ago because I was interested in sd-bus with libev. I work on a project that uses libev but 99% of the project code calls wrappers on top of libev. I am currently working on this PR in github, which perhaps you or others can get hints on sd-bus + libev: github.com/flux-framework/flux-core/pull/3864Albert Chu– Albert Chu2022-01-11 22:36:23 +00:00Commented Jan 11, 2022 at 22:36
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Don't have anything for libev but for libevent + sdbus , it goes something like this
//Global static sd_bus *bus = NULL; static struct event_base *base = NULL; void bus_process(evutil_socket_t fd, short what, void *arg) { sd_bus_process(bus, NULL); } void main() { sd_bus_default_system(&bus); sd_bus_request_name(bus, BUS_NAME, 0); int fd = 0; int events = 0; uint64_t usec; struct event *ev_read; base = event_base_new() fd = sd_bus_get_fd(bus); events = sd_bus_get_events(bus); sd_bus_get_timeout(bus, &usec); evutil_make_socket_nonblocking(fd); ev_read = event_new(base, fd, EV_READ|EV_PERSIST, bus_process, NULL); event_add(ev_read, NULL); event_base_dispatch(base); // wont get here, loop is now running and processing return; } 