+ // release mesh mutex during select
+ if(mutex) {
+ pthread_mutex_unlock(mutex);
+ }
+
+ int n = select(fds, &readable, &writable, NULL, tv);
+
+ if(mutex) {
+ pthread_mutex_lock(mutex);
+ }
+
+ gettimeofday(&loop->now, NULL);
+
+ if(n < 0) {
+ if(sockwouldblock(errno)) {
+ continue;
+ } else {
+ return false;
+ }
+ }
+
+ if(!n) {
+ continue;
+ }
+
+ // Normally, splay_each allows the current node to be deleted. However,
+ // it can be that one io callback triggers the deletion of another io,
+ // so we have to detect this and break the loop.
+
+ loop->deletion = false;
+
+ for splay_each(io_t, io, &loop->ios) {
+ if(FD_ISSET(io->fd, &writable) && io->cb) {
+ io->cb(loop, io->data, IO_WRITE);
+ }
+
+ if(loop->deletion) {
+ break;
+ }
+
+ if(FD_ISSET(io->fd, &readable) && io->cb) {
+ io->cb(loop, io->data, IO_READ);
+ }
+
+ if(loop->deletion) {
+ break;
+ }
+ }
+ }
+
+ return true;