search for: 6665cd9

I got annoyed by qemu-nbd's default of only allowing a single connection; combine that with nbdkit's nbd plugin, and even 'qemu-nbd --list' of nbdkit counts as the single connection and immediately hangs up. If we introduce a shared mode, then 'qemu-nbd --list' can connect as many times as it wants without killing the original qemu-nbd wrapped by nbdkit. But this in turn

...+ nbdkit --exit-with-parent --filter=partition nbd socket=$sock \ + shared=1 retry=5 partition=1 & exec qemu-nbd -k $sock -f qcow2 /path/to/image.qcow2 ) Conversely, expose the contents of export I<foo> from a new style diff --git a/plugins/nbd/nbd.c b/plugins/nbd/nbd.c index 6665cd9..9389a55 100644 --- a/plugins/nbd/nbd.c +++ b/plugins/nbd/nbd.c @@ -57,6 +57,37 @@ #include "byte-swapping.h" #include "cleanup.h" +/* The per-transaction details */ +struct transaction { + uint64_t cookie; + sem_t sem; + void *buf; + uint64_t offset; + uint32_t count; +...