#include "lightningd/io_loop_with_timers.h" #include <ccan/io/io.h> #include <ccan/timer/timer.h> #include <common/timeout.h> #include <lightningd/lightningd.h> #include <wallet/db.h> #include <wallet/wallet.h> void *io_loop_with_timers(struct lightningd *ld) { void *retval = NULL; struct timer *expired; while (!retval) { /* ~ccan/io's io_loop() continuously calls * io_poll_lightningd() for all file descriptors registered * with it, then calls their callbacks or closes them if they * fail, as appropriate. * * It will only exit if there's an expired timer, *or* someone * calls io_break, or if there are no more file descriptors * (which never happens in our code). */ retval = io_loop(ld->timers, &expired); /*~ Notice that timers are called here in the event loop like * anything else, so there are no weird concurrency issues. */ if (expired) { /* This routine is legal in early startup, too. */ if (ld->wallet) db_begin_transaction(ld->wallet->db); timer_expired(ld, expired); if (ld->wallet) db_commit_transaction(ld->wallet->db); } } return retval; }