search for: filtering

We documented our intent of only allowing a filter to run with the same version of nbdkit it was compiled against, but up to now, were not actually enforcing that - we had only been insisting on the looser notion of a matching ._api_version, which doesn't help when we've forgotten to bump that macro when making incompatible API/ABI changes (see commit 6934d4c1). However, we can't use

Being able to programmatically force nbdkit to be less parallel can be useful during testing. I was less sure about patch 3, but if you like it, I'm inclined to instead squash it into patch 1. This patch is written to apply after my NBD_CMD_CACHE work (since I touched the nocache filter); but can be rearranged if we think this series should go in first while that one undergoes any adjustments

No need for filters to specify their model in two different ways; the callback alone is sufficient. Since all filters are in-tree, we can deal with the API/ABI change made here. Signed-off-by: Eric Blake <eblake@redhat.com> --- docs/nbdkit-filter.pod | 48 +++++++++++++++------------------ include/nbdkit-filter.h | 6 ++--- filters/cow/cow.c | 2 --

Similar to the existing fua, nozero and noextents filters, add a filter to make it easy to override the basic caching functionality, in part to facilitate timing tests of whether a plugin's cache implementation is worthwhile. A worthwhile test to add to the testsuite would connect the log filter both before and after the nocache filter, to prove how caching requests are altered. However,

When using a filter that rounds up to alignment boundaries, the tail bytes of the plugin are difficult to access correctly. Rather than duplicating lots of code already in the truncate filter, it's easier to just make the other filters default to rounding down and add doc links on how to round up instead. Eric Blake (2): blocksize: Lift restriction against 0-size file cache, cow: Round

Hi, I'm a R newbie and want to accelerate the following pre-filtering step of a data set with more than 115,000 rows : #----------------- # Function to filter out constant data columns filter.const<-function(X, vectors=c('column', 'row'), tol=0){ realdata=c() filteredX<-matrix() if( vectors[1] == 'row' ){ for( row in (1:...

The blocksize filter already rounds sizes down, to avoid having to special-case a partial action at the end of an unaligned file. But our current behavior for cache and cow is not similarly careful, and can end up causing errors by passing a too-large count to the plugin. The bulk of our plugins are somewhat safe, in that they either fail the pread (for example, the file plugin gets a short read

--- configure.ac | 2 ++ filters/blocksize/Makefile.am | 1 + filters/cache/Makefile.am | 1 + filters/cacheextents/Makefile.am | 1 + filters/cow/Makefile.am | 1 + filters/ddrescue/Makefile.am | 1 + filters/delay/Makefile.am | 3 +++ filters/error/Makefile.am | 1 + filters/exitlast/Makefile.am | 3 +++

This is a second version of the limit filter. v1 was posted here: https://www.redhat.com/archives/libguestfs/2020-March/msg00015.html I didn't bother to repost the other three patches because they are the same. The difference is this version of the filter takes security more seriously. It shouldn't be possible for malicious clients to connect more than limit=N times to the plugin now,

--- docs/nbdkit-captive.pod | 4 ++-- docs/nbdkit-plugin.pod | 2 +- docs/nbdkit-service.pod | 2 +- docs/nbdkit-tls.pod | 2 +- filters/cow/nbdkit-cow-filter.pod | 4 ++-- filters/delay/nbdkit-delay-filter.pod | 2 +- filters/error/nbdkit-error-filter.pod | 6 +++---

--- docs/nbdkit-captive.pod | 4 ++-- docs/nbdkit-plugin.pod | 2 +- docs/nbdkit-service.pod | 2 +- docs/nbdkit-tls.pod | 2 +- filters/cow/nbdkit-cow-filter.pod | 4 ++-- filters/delay/nbdkit-delay-filter.pod | 2 +- filters/error/nbdkit-error-filter.pod | 6 +++---

--- docs/nbdkit-service.pod | 1 + filters/exitlast/nbdkit-exitlast-filter.pod | 1 + filters/ip/nbdkit-ip-filter.pod | 1 + filters/limit/nbdkit-limit-filter.pod | 61 +++++++++ filters/rate/nbdkit-rate-filter.pod | 1 + configure.ac | 2 + filters/limit/Makefile.am | 66 ++++++++++

Hi list, I''m playing with tc and found a strange behavior when I try to delete filters. For example, this simple scenario: tc qdisc add dev eth1 root handle 1: htb default 100 tc class add dev eth1 parent 1: classid 1:1 htb rate 128Kbit tc class add dev eth1 parent 1: classid 1:2 htb rate 258Kbit tc class add dev eth1 parent 1: classid 1:100 htb rate 32Kbit tc filter add dev eth1 parent

I want to put a bug in bugzilla but i prefer first asking here what is revelant in this console output concerning race driver GRID demo Code: fixme:mixer:ALSA_MixerInit No master control found on Brooktree Bt878, disabling mixer fixme:ntdll:NtQueryInformationProcess (0xffffffff,info_class=34,0x218a3b8,0x0000 0004,0x218a3b4) Unknown information class fixme:ntdll:NtQuerySystemInformation

--- docs/nbdkit-service.pod | 1 + filters/exitlast/nbdkit-exitlast-filter.pod | 58 +++++++++++++++ filters/ip/nbdkit-ip-filter.pod | 1 + filters/rate/nbdkit-rate-filter.pod | 1 + configure.ac | 3 + filters/exitlast/Makefile.am | 60 ++++++++++++++++ tests/Makefile.am | 3 +

Patch 3 still needs tests added, but it is at least working from my simple command line tests. Eric Blake (3): server: Implement nbdkit_is_tls for use during .open server: Expose final thread_model to filter's .get_ready tlsdummy: New filter docs/nbdkit-filter.pod | 21 +- docs/nbdkit-plugin.pod | 34 ++- docs/nbdkit-tls.pod

Sometimes, it's nice to see what a difference it makes in timing or in destination file size when sparse handling is enabled or disabled. Add a new filter that makes it trivial to disable write zero support. Signed-off-by: Eric Blake <eblake@redhat.com> --- TODO | 2 +- configure.ac | 3 +- docs/nbdkit-filter.pod

This incomplete patch adds a new filter allowing more control over when nbdkit exits. You can now get nbdkit to exit gracefully on certain events, such as a file being created, a pipe held open by another process going away, or when another PID exits. There is also a script option to allow for completely custom events. It is untested at the moment, I'm posting it to get feedback on the

The next patch wants to add a filter that will prevent DoS attacks from a plaintext client; to be successful, the filter must guarantee that nbdkit did not settle on SERIALIZE_CONNECTIONS. The easiest way to solve this is to expose the final thread model to .get_ready, which is after the point where .config_complete may have altered it, and before any connections are permitted. Signed-off-by:

https://bugzilla.samba.org/show_bug.cgi?id=4855 Summary: skipped local filters cause segfault while deleting (- rFR --delete) Product: rsync Version: 3.0.0 Platform: x86 OS/Version: Linux Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned@samba.org