Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- Changes | 1 + Virt.xs | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ lib/Sys/Virt/Domain.pm | 6 ++++++ t/030-api-coverage.t | 1 + 4 files changed, 56 insertions(+) diff --git a/Changes b/Changes index aee699d..4d6136f 100644 --- a/Changes +++ b/Changes @@ -11,6 +11,7 @@ Revision history for perl module Sys::Virt - Add PERF_PARAM_PAGE_FAULTS_MAJ constant - Add PERF_PARAM_ALIGNMENT_FAULTS constant - Add PERF_PARAM_EMULATION_FAULTS constant + - Add block threshold event 3.1.0 2017-03-03 diff --git a/Virt.xs b/Virt.xs index e80182f..e0588f0 100644 --- a/Virt.xs +++ b/Virt.xs @@ -1136,6 +1136,50 @@ _domain_event_metadata_change_callback(virConnectPtr con, static int +_domain_event_block_threshold_callback(virConnectPtr con, + virDomainPtr dom, + const char *dev, + const char *path, + unsigned long long threshold, + unsigned long long excess, + void *opaque) +{ + AV *data = opaque; + SV **self; + SV **cb; + SV *domref; + dSP; + + self = av_fetch(data, 0, 0); + cb = av_fetch(data, 1, 0); + + SvREFCNT_inc(*self); + + ENTER; + SAVETMPS; + + PUSHMARK(SP); + XPUSHs(*self); + domref = sv_newmortal(); + sv_setref_pv(domref, "Sys::Virt::Domain", (void *) dom); + virDomainRef(dom); + XPUSHs(domref); + XPUSHs(sv_2mortal(newSVpv(dev, 0))); + XPUSHs(sv_2mortal(newSVpv(path, 0))); + XPUSHs(sv_2mortal(newSViv(threshold))); + XPUSHs(sv_2mortal(newSViv(excess))); + PUTBACK; + + call_sv(*cb, G_DISCARD); + + FREETMPS; + LEAVE; + + return 0; +} + + +static int _network_event_lifecycle_callback(virConnectPtr con, virNetworkPtr net, int event, @@ -3375,6 +3419,9 @@ PREINIT: case VIR_DOMAIN_EVENT_ID_METADATA_CHANGE: callback = VIR_DOMAIN_EVENT_CALLBACK(_domain_event_metadata_change_callback); break; + case VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD: + callback = VIR_DOMAIN_EVENT_CALLBACK(_domain_event_block_threshold_callback); + break; default: callback = VIR_DOMAIN_EVENT_CALLBACK(_domain_event_generic_callback); break; @@ -8384,6 +8431,7 @@ BOOT: REGISTER_CONSTANT(VIR_DOMAIN_EVENT_ID_JOB_COMPLETED, EVENT_ID_JOB_COMPLETED); REGISTER_CONSTANT(VIR_DOMAIN_EVENT_ID_DEVICE_REMOVAL_FAILED, EVENT_ID_DEVICE_REMOVAL_FAILED); REGISTER_CONSTANT(VIR_DOMAIN_EVENT_ID_METADATA_CHANGE, EVENT_ID_METADATA_CHANGE); + REGISTER_CONSTANT(VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD, EVENT_ID_BLOCK_THRESHOLD); REGISTER_CONSTANT(VIR_DOMAIN_EVENT_WATCHDOG_NONE, EVENT_WATCHDOG_NONE); REGISTER_CONSTANT(VIR_DOMAIN_EVENT_WATCHDOG_PAUSE, EVENT_WATCHDOG_PAUSE); diff --git a/lib/Sys/Virt/Domain.pm b/lib/Sys/Virt/Domain.pm index eea8b26..b46eca1 100644 --- a/lib/Sys/Virt/Domain.pm +++ b/lib/Sys/Virt/Domain.pm @@ -3274,6 +3274,12 @@ Guest device removal has failed. The domain metadata has changed +=item Sys::Virt::Domain::EVENT_ID_BLOCK_THRESHOLD + +The event occurs when the hypervisor detects that the given +storage element was written beyond the point specified by +threshold. The event is useful for thin-provisioned storage. + =back =head2 IO ERROR EVENT CONSTANTS diff --git a/t/030-api-coverage.t b/t/030-api-coverage.t index 3a0d0c5..3049713 100644 --- a/t/030-api-coverage.t +++ b/t/030-api-coverage.t @@ -95,6 +95,7 @@ virConnectDomainEventMigrationIterationCallback virConnectDomainEventJobCompletedCallback virConnectDomainEventDeviceRemovalFailedCallback virConnectDomainEventMetadataChangeCallback +virConnectDomainEventBlockThresholdCallback virConnectNetworkEventLifecycleCallback -- 2.10.2

Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- Changes | 1 + Virt.xs | 12 ++++++++++++ lib/Sys/Virt/Domain.pm | 9 +++++++++ 3 files changed, 22 insertions(+) diff --git a/Changes b/Changes index 4d6136f..3faaf08 100644 --- a/Changes +++ b/Changes @@ -12,6 +12,7 @@ Revision history for perl module Sys::Virt - Add PERF_PARAM_ALIGNMENT_FAULTS constant - Add PERF_PARAM_EMULATION_FAULTS constant - Add block threshold event + - Add virDomainSetBlockThreshold API 3.1.0 2017-03-03 diff --git a/Virt.xs b/Virt.xs index e0588f0..a05cf4d 100644 --- a/Virt.xs +++ b/Virt.xs @@ -6120,6 +6120,18 @@ send_process_signal(dom, pidsv, signum, flags=0) if (virDomainSendProcessSignal(dom, pid, signum, flags) < 0) _croak_error(); +void +set_block_threshold(dom, dev, thresholdsv, flags=0) + virDomainPtr dom; + const char *dev; + SV *thresholdsv; + unsigned int flags; + PREINIT: + unsigned long long threshold; + PPCODE: + threshold = virt_SvIVull(thresholdsv); + if (virDomainSetBlockThreshold(dom, dev, threshold, flags) < 0) + _croak_error(); void destroy(dom_rv, flags=0) diff --git a/lib/Sys/Virt/Domain.pm b/lib/Sys/Virt/Domain.pm index b46eca1..a192ad5 100644 --- a/lib/Sys/Virt/Domain.pm +++ b/lib/Sys/Virt/Domain.pm @@ -1924,6 +1924,15 @@ C<$signum> value must be one of the constants listed later, not a POSIX or Linux signal value. C<$flags> is currently unused and defaults to zero. +=item $dom->set_block_threshold($dev, $threshold, $flags=0); + +Set the threshold level for delivering the +EVENT_ID_BLOCK_THRESHOLD if the device or backing chain element +described by C<$dev> is written beyond the set C<$threshold> +level. The threshold level is unset once the event fires. The +event might not be delivered at all if libvirtd was not running +at the moment when the threshold was reached. + =back =head1 CONSTANTS -- 2.10.2