search for: supports_uri

nbd_get_version returns the library version as a string. nbd_supports_uri returns whether or not the library was compiled with NBD URI support (ie. with libxml2). nbd_get_package_name is fairly useless as it always returns the string "libnbd", however it replaces a function that was written for the Python bindings. These take a handle parameter but don't...

On 6/3/19 4:59 AM, Richard W.M. Jones wrote: > nbd_get_version returns the library version as a string. > > nbd_supports_uri returns whether or not the library was compiled with > NBD URI support (ie. with libxml2). > > nbd_get_package_name is fairly useless as it always returns the string > "libnbd", however it replaces a function that was written for the > Python bindings. > > These tak...

This is slightly redundant with just trying nbd_set_tls(nbd, 2) then checking for failure; however, this function does not set errors and looks more similar to nbd_supports_uri. --- This is borderline enough that I figured I'd post it to check if we want it. generator/generator | 45 ++++++++++++++++++++++++++++++++++++++------- interop/interop.c | 4 ++++ lib/handle.c | 12 ++++++++++++ 3 files changed, 54 insertions(+), 7 deletions(-) diff --git a/gene...

...1, 0); + "aio_peek_command_completed", (1, 0); + "aio_in_flight", (1, 0); + "connection_state", (1, 0); + "get_package_name", (1, 0); + "get_version", (1, 0); + "kill_subprocess", (1, 0); + "supports_tls", (1, 0); + "supports_uri", (1, 0); + + (* Added in 1.1 development series. *) + "can_fast_zero", (1, 2); ] (* Constants, etc. *) @@ -3336,13 +3423,37 @@ let () = | _ -> () ) handle_calls; - (* First stable version must be 1.x where x is even. *) + (* first_version must be (0, 0) in handl...

...HETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires nbdsh -c 'i = nbd.CMD_FLAG_FAST_ZERO +exit(not h.supports_uri())' + +files="retry-zero-flags-count retry-zero-flags-open-count" +rm -f $files +cleanup_fn rm -f $files + +touch retry-zero-flags-count retry-zero-flags-open-count +start_t=$SECONDS + +# Create a custom plugin which will test retrying. +nbdkit -v -U - \ + sh - \ + --filte...

This doesn't include Eric's new APIs, but if you push those then I can rebase this one on top. Rich.

v2 was here: https://www.redhat.com/archives/libguestfs/2020-April/msg00075.html In v3: - Add [VAR=VALUE ...] to manual. - Various minor improvements to the manual. - Work (at least, in theory - not tested) with block devices or symlinks. I didn't document this because it's hard to ensure these files or block devices would be cleaned up, so here be dragons. - Remove O_NOCTTY. -

...OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Demonstrate a fix for a bug where blocksize used to cause extents failures + +source ./functions.sh +set -e +set -x + +requires nbdsh --base-allocation -c 'exit(not h.supports_uri())' + +# Script a server that requires 512-byte aligned requests, reports only one +# extent at a time, and with a hole placed unaligned to 4k bounds +exts=' +if test $3 -gt $(( 32 * 1024 )); then + echo "EINVAL request too large" 2>&1 + exit 1 +fi +if test $(( ($3|$4) &a...

...LIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Concatenating sparse and data files should have observable extents. + +source ./functions.sh +set -e +set -x + +requires nbdsh --base-allocation -c 'exit(not h.supports_uri())' +requires truncate --help +requires stat --help + +files="test-split-extents.1 test-split-extents.2" +rm -f $files +cleanup_fn rm -f $files + +# Create two files, each half data and half sparse +truncate --size=512k test-split-extents.1 +if test "$(stat -c %b test-split-exten...

...D +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -xe + +requires nbdsh -c 'exit (not h.supports_uri ())' + +plugin=.libs/test-stdio-plugin.so +requires test -f $plugin + +sock1=`mktemp -u` +sock2=`mktemp -u` +files="test-stdio.in test-stdio.out test-stdio.err + test-stdio.pid1 test-stdio.pid2 $sock1 $sock2" +rm -f $files +cleanup_fn rm -f $files + +# Using a seekable file lets us p...

...ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires nbdsh -c 'exit (not h.supports_uri ())' + +# - If multiple parameters appear, last one is used. +# - Test quoting. +# - size=0 because we ignore it in the command itself. +nbdkit -f -v -U - tmpdisk 0 a=2 a=1 b=1024 c="a ' b ' c" \ + command=' +set -x +set -e +if [ $a -ne 1 ]; then exit 1; fi +if [ &qu...

I'm still working on another set of patches to have reopen call .finalize/.prepare (so that another filter can safely appear between retry and the plugin), but for tonight, these are the patches I think are ready to go. Eric Blake (4): retry: Handle can_fua and can_fast_zero changes tests: Test retry with different fua/fast-zero flags server: Close backends if a filter's .open fails

...# Test handling of NBD maximum string length of 4k. +echo "$0: This test needs to be rewritten to use alternate method to" +echo "send back the export name to the client." +exit 77 + requires qemu-io --version requires qemu-nbd --version requires nbdsh -c 'exit(not h.supports_uri())' -- 2.27.0

In v2: - use int instead of bool in the public header - split the tests from the code - don't overload test-layers; instead, add new tests - add a missing fflush exposed by the new tests - other minor cleanups Eric Blake (3): server: Add nbdkit_stdio_safe server: Sanitize stdin/out before running plugin code server: More tests of stdin/out handling docs/nbdkit-plugin.pod |

Also available here: https://github.com/rwmjones/nbdkit/tree/2020-windows-mingw-nolib After a lot of work I have made the port to Windows work without using a separate library. Instead, on Windows only, we build an "import library" (library of stubs) which resolves references to nbdkit_* functions in the main program and fixes up the plugin, basically the first technique outlined in