osmo_io: Avoid implementing non-existant situations

Both of our back-ends have a register_fd and unregister_fd back-end.

Let's simplify the code by not treating them as optional, which
introduces code paths that we never take, adds small runtime overhead
and makes the code harder to follow.

Should we ever introduce more backends which might not need those
call-backs, we can either have empty functions or think about how to
make them optional.

Change-Id: I0077151eb676f61320b3fa2124448852aa8fd4a9
This commit is contained in:
Harald Welte 2024-03-07 10:41:57 +01:00
parent 257e7898c5
commit 8b7af448d6
1 changed files with 4 additions and 7 deletions

View File

@ -106,6 +106,8 @@ static __attribute__((constructor(103))) void on_dso_load_osmo_io(void)
}
OSMO_ASSERT(osmo_iofd_ops.close);
OSMO_ASSERT(osmo_iofd_ops.register_fd);
OSMO_ASSERT(osmo_iofd_ops.unregister_fd);
OSMO_ASSERT(osmo_iofd_ops.write_enable);
OSMO_ASSERT(osmo_iofd_ops.write_disable);
OSMO_ASSERT(osmo_iofd_ops.read_enable);
@ -695,8 +697,7 @@ int osmo_iofd_register(struct osmo_io_fd *iofd, int fd)
return -EBADF;
}
if (osmo_iofd_ops.register_fd)
rc = osmo_iofd_ops.register_fd(iofd);
rc = osmo_iofd_ops.register_fd(iofd);
if (rc)
return rc;
@ -720,11 +721,7 @@ int osmo_iofd_register(struct osmo_io_fd *iofd, int fd)
*/
int osmo_iofd_unregister(struct osmo_io_fd *iofd)
{
if (osmo_iofd_ops.unregister_fd)
return osmo_iofd_ops.unregister_fd(iofd);
IOFD_FLAG_SET(iofd, IOFD_FLAG_CLOSED);
return 0;
return osmo_iofd_ops.unregister_fd(iofd);
}
/*! Get the number of messages in the tx queue.