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...BACK (%s_callback);\n" cbname + | OFlags _ -> () + ) optargs; if is_locked then ( pr " if (h->public_state != get_next_state (h))\n"; pr " h->public_state = get_next_state (h);\n"; diff --git a/lib/debug.c b/lib/debug.c index 1b503d9..b598ad3 100644 --- a/lib/debug.c +++ b/lib/debug.c @@ -54,6 +54,7 @@ nbd_unlocked_set_debug_callback (struct nbd_handle *h, nbd_unlocked_clear_debug_callback (h); h->debug_callback = *debug_callback; + SET_CALLBACK_TO_NULL (*debug_callback); return 0; } diff --git a/lib/opt.c b/lib/opt.c in...

As promised in my earlier thread on libnbd completion callback question. Eric Blake (2): generator: Refactor handling of closures in unlocked functions generator: Free closures on failure docs/libnbd.pod | 2 +- generator/C.ml | 48 +++++++++++------ generator/C.mli | 1 + lib/debug.c | 7 +-- lib/opt.c | 31 ++++++-----