search for: iso_can_cach

...buf) == -1) { - nbdkit_error ("fstat: %m"); - return -1; - } - - return statbuf.st_size; -} - /* Serves the same data over multiple connections. */ static int iso_can_multi_conn (void *handle) @@ -219,35 +239,6 @@ iso_can_multi_conn (void *handle) return 1; } -static int -iso_can_cache (void *handle) -{ - /* Let nbdkit call pread to populate the file system cache. */ - return NBDKIT_CACHE_EMULATE; -} - -/* Read data from the file. */ -static int -iso_pread (void *handle, void *buf, uint32_t count, uint64_t offset) -{ - while (count > 0) { - ssize_t r = pread (fd, buf, c...

...= 1, /* zlib does not appear to use fork() */ }; NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/iso/iso.c b/plugins/iso/iso.c index 5634bac9..bb942f85 100644 --- a/plugins/iso/iso.c +++ b/plugins/iso/iso.c @@ -260,6 +260,7 @@ static struct nbdkit_plugin plugin = { .can_cache = iso_can_cache, .pread = iso_pread, .errno_is_preserved = 1, + .fork_safe = 1, /* no fork()s after .config_complete */ }; NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/libvirt/libvirt-plugin.c b/plugins/libvirt/libvirt-plugin.c index 71cac42b..cd4e326c 100644 --- a/plugins/lib...

Needs some work still, see in particular the commit message for patch 3. Rich.

Since v1: - rework .can_cache to be tri-state, with default of no advertisement (ripple effect through other patches) - add a lot more patches in order to round out filter support And in the meantime, Rich pushed NBD_CMD_CACHE support into libnbd, so in theory we now have a way to test cache commands through the entire stack. Eric Blake (24): server: Internal hooks for implementing

This is a major rewrite compared to my v1 series, where I've tried a lot harder to ensure that we still accommodate building on Haiku (although I have not actually yet fired up a Haiku VM to try it for myself). I also managed to make the sh plugin fully parallel, on capable platforms. See also my question on patch 10 on whether I've picked the best naming convention. Eric Blake (17):