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39 #include <nbdkit-plugin.h>
42 shutdown_unload (void)
44 nbdkit_debug ("clean shutdown");
48 shutdown_open (int readonly
)
50 return NBDKIT_HANDLE_NOT_NEEDED
;
54 shutdown_get_size (void *handle
)
59 #define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
62 shutdown_pread (void *handle
, void *buf
, uint32_t count
, uint64_t offset
)
64 memset (buf
, 0, count
);
68 /* Writing 0x55 to any location causes a shutdown. */
70 shutdown_pwrite (void *handle
, const void *buf
, uint32_t count
, uint64_t offset
)
72 if (memchr (buf
, 0x55, count
) != NULL
) {
73 nbdkit_debug ("shutdown triggered!");
79 static struct nbdkit_plugin plugin
= {
81 .version
= PACKAGE_VERSION
,
82 .unload
= shutdown_unload
,
83 .open
= shutdown_open
,
84 .get_size
= shutdown_get_size
,
85 .pread
= shutdown_pread
,
86 .pwrite
= shutdown_pwrite
,
89 NBDKIT_REGISTER_PLUGIN (plugin
)