- Devel - libvirt List Archives

[libvirt] [snmp PATCH 0/2] Cleanup for libvirt-snmp
by Martin Kletzander 30 May '12

30 May '12

This series cleans up the libvirt-snmp codebase with some visual (whitespaces) and semantic (memory leaks) cleanups. Martin Kletzander (2): cleanup: whitespaces removed from ends of lines Stop event thread on server stop autogen.sh | 4 +- docs/libvirtMib_subagent.pod | 4 +- src/LIBVIRT-MIB.txt | 4 +- src/libvirtGuestTable-README-FIRST.txt | 6 +- src/libvirtGuestTable-README-libvirtGuestTable.txt | 16 ++-- src/libvirtGuestTable.c | 16 ++-- src/libvirtGuestTable.h | 22 +++--- src/libvirtGuestTable_data_access.c | 8 +- src/libvirtGuestTable_data_get.c | 8 +- src/libvirtGuestTable_data_set.c | 22 +++--- src/libvirtGuestTable_enums.h | 24 +++--- src/libvirtGuestTable_interface.c | 82 ++++++++++---------- src/libvirtGuestTable_interface.h | 2 +- src/libvirtGuestTable_oids.h | 20 +++--- src/libvirtMib_subagent.c | 22 +++--- src/libvirtSnmp.c | 20 +++++- 16 files changed, 150 insertions(+), 130 deletions(-) -- 1.7.8.6

2 5

[libvirt] [PATCH] file: Log closing filedescriptors
by Jiri Denemark 30 May '12

30 May '12

--- src/util/virfile.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/util/virfile.c b/src/util/virfile.c index db3d737..bc7f2c9 100644 --- a/src/util/virfile.c +++ b/src/util/virfile.c @@ -35,6 +35,7 @@ #include "configmake.h" #include "memory.h" #include "virterror_internal.h" +#include "logging.h" #define VIR_FROM_THIS VIR_FROM_NONE #define virFileError(code, ...) \ @@ -51,6 +52,15 @@ int virFileClose(int *fdptr, bool preserve_errno) if (preserve_errno) saved_errno = errno; rc = close(*fdptr); + if (rc < 0) { + if (errno != EBADF) { + char ebuf[1024] ATTRIBUTE_UNUSED; + VIR_DEBUG("Failed to close fd %d: %d", + *fdptr, virStrerror(errno, ebuf, sizeof(ebuf))); + } + } else { + VIR_DEBUG("Closed fd %d", *fdptr); + } *fdptr = -1; if (preserve_errno) errno = saved_errno; -- 1.7.10.2

2 3

[libvirt] [PATCH] command: Fix debug message during handshake
by Jiri Denemark 30 May '12

30 May '12

Probably a result of copy&paste... --- src/util/command.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/command.c b/src/util/command.c index 5b94f1e..8b581cf 100644 --- a/src/util/command.c +++ b/src/util/command.c @@ -2538,7 +2538,7 @@ int virCommandHandshakeNotify(virCommandPtr cmd) return -1; } - VIR_DEBUG("Notify handshake on %d", cmd->handshakeWait[0]); + VIR_DEBUG("Notify handshake on %d", cmd->handshakeNotify[1]); if (safewrite(cmd->handshakeNotify[1], &c, sizeof(c)) != sizeof(c)) { virReportSystemError(errno, "%s", _("Unable to notify child process")); VIR_FORCE_CLOSE(cmd->handshakeNotify[1]); -- 1.7.10.2

2 1

[libvirt] [PATCH] build: Fixed generating of libvirt_qemu_probes.h
by Martin Kletzander 30 May '12

30 May '12

I added libvirt_qemu_probes.h into BUILT_SOURCES. That makes it generated, but most probably it is not the clearest way how to do that, but it fixes the build. --- Feel free to clean this, but for the time being, I'm pushing this as a build breaker. src/Makefile.am | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index c8efa5b..1fde936 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1294,6 +1294,7 @@ BUILT_SOURCES += libvirt_probes.h libvirt_probes.stp libvirt_functions.stp if WITH_QEMU libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.lo nodist_libvirt_driver_qemu_la_SOURCES = libvirt_qemu_probes.h +BUILT_SOURCES += libvirt_qemu_probes.h endif tapsetdir = $(datadir)/systemtap/tapset -- 1.7.8.6

2 3

[libvirt] [PATCH] virCommand: Extend debug message for handshake
by Michal Privoznik 30 May '12

30 May '12

Currently, we are logging only one side of pipes we create in virCommandRequireHandshake(); This is enough in cases where pipe2() returns two consecutive FDs. However, it is not guaranteed and it may return any FDs. Therefore, it's wise to log the other ends as well. --- src/util/command.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/src/util/command.c b/src/util/command.c index eaa9f16..5b94f1e 100644 --- a/src/util/command.c +++ b/src/util/command.c @@ -2443,8 +2443,10 @@ void virCommandRequireHandshake(virCommandPtr cmd) return; } - VIR_DEBUG("Transfer handshake wait=%d notify=%d", - cmd->handshakeWait[1], cmd->handshakeNotify[0]); + VIR_DEBUG("Transfer handshake wait=%d notify=%d, " + "keep handshake wait=%d notify=%d", + cmd->handshakeWait[1], cmd->handshakeNotify[0], + cmd->handshakeWait[0], cmd->handshakeNotify[1]); virCommandTransferFD(cmd, cmd->handshakeWait[1]); virCommandTransferFD(cmd, cmd->handshakeNotify[0]); cmd->handshake = true; -- 1.7.8.5

2 2

[libvirt] [PATCH libvirt-java] Return a byte[] array with secretGetValue
by Wido den Hollander 30 May '12

30 May '12

Signed-off-by: Wido den Hollander <wido(a)widodh.nl> --- src/main/java/org/libvirt/Secret.java | 11 +++++++++-- src/main/java/org/libvirt/jna/Libvirt.java | 2 +- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/src/main/java/org/libvirt/Secret.java b/src/main/java/org/libvirt/Secret.java index e536cf4..a874925 100644 --- a/src/main/java/org/libvirt/Secret.java +++ b/src/main/java/org/libvirt/Secret.java @@ -5,6 +5,9 @@ import org.libvirt.jna.SecretPointer; import com.sun.jna.Native; import com.sun.jna.NativeLong; +import com.sun.jna.ptr.LongByReference; +import com.sun.jna.Pointer; +import java.nio.ByteBuffer; /** * A secret defined by libvirt @@ -109,9 +112,13 @@ public class Secret { * * @return the value of the secret, or null on failure. */ - public String getValue() throws LibvirtException { - String returnValue = libvirt.virSecretGetValue(VSP, new NativeLong(), 0); + public byte[] getValue() throws LibvirtException { + LongByReference value_size = new LongByReference(); + Pointer value = libvirt.virSecretGetValue(VSP, value_size, 0); processError(); + ByteBuffer bb = value.getByteBuffer(0, value_size.getValue()); + byte[] returnValue = new byte[bb.remaining()]; + bb.get(returnValue); return returnValue; } diff --git a/src/main/java/org/libvirt/jna/Libvirt.java b/src/main/java/org/libvirt/jna/Libvirt.java index 2c8c03d..3804d55 100644 --- a/src/main/java/org/libvirt/jna/Libvirt.java +++ b/src/main/java/org/libvirt/jna/Libvirt.java @@ -330,7 +330,7 @@ public interface Libvirt extends Library { public int virSecretGetUUID(SecretPointer virSecretPtr, byte[] uuidString); public int virSecretGetUUIDString(SecretPointer virSecretPtr, byte[] uuidString); public String virSecretGetUsageID(SecretPointer virSecretPtr); - public String virSecretGetValue(SecretPointer virSecretPtr, NativeLong value_size, int flags); + public Pointer virSecretGetValue(SecretPointer virSecretPtr, LongByReference value_size, int flags); public String virSecretGetXMLDesc(SecretPointer virSecretPtr, int flags); public SecretPointer virSecretLookupByUsage(ConnectionPointer virConnectPtr, int usageType, String usageID); public SecretPointer virSecretLookupByUUID(ConnectionPointer virConnectPtr, byte[] uuidBytes); -- 1.7.5.4

2 2

[libvirt] [PATCH] lxc: return correct number of CPUs
by Martin Kletzander 30 May '12

30 May '12

When getting number of CPUs the host has assigned, there was always number "1" returned. Even though all lxc domains with no pinning launched by libvirt run on all pCPUs (by default, no matter what's the number), we should at least return the same number as the user specified when creating the domain. --- The bug addressed above will be managed later, because I believe this needs to be discussed first (we don't say that <vcpu> is not supported for lxc, but we are able to set only pinning, shares, not number of CPUs; due to using cgroups). The question will be: "Should we change the docs and ban it in the code or make some workaround for fixing it?" src/lxc/lxc_driver.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 9aea556..33b2774 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -590,7 +590,7 @@ static int lxcDomainGetInfo(virDomainPtr dom, } info->maxMem = vm->def->mem.max_balloon; - info->nrVirtCpu = 1; + info->nrVirtCpu = vm->def->vcpus; ret = 0; cleanup: -- 1.7.8.6

2 2

[libvirt] serial console/events example script
by Dave Allan 30 May '12

30 May '12

Hi all, A while back I wrote the attached code to demonstrate how to use events and serial console to create a serial console that stays up even when the VM is down. Is it worth adding to the examples? It might need some work, as I am not terribly strong with Python. Dave

3 5

[libvirt] [PATCH] build: don't lose probes.o files
by Eric Blake 29 May '12

29 May '12

The previous patch fixed an incremental build, but missed that on a fresh checkout, we now have nothing requiring that stops make from nuking libvirt_qemu_probes.o. * src/Makefile.am ($(libvirt_driver_qemu_la_SOURCES)): Delete, since this variable is empty. (.PRECIOUS): Add %_probes.o, so they don't get nuked as an intermediate by-product after creating %_probes.lo. --- Pushing under the build-breaker rule; this time I've done more testing, including ./autobuild.sh on a fresh checkout (that died later on, due to the augeas issue mentioned here[1], but at least it got past the probes.o hangup). [1] https://www.redhat.com/archives/libvir-list/2012-May/msg01296.html src/Makefile.am | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index 533e78a..c8efa5b 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1294,8 +1294,6 @@ BUILT_SOURCES += libvirt_probes.h libvirt_probes.stp libvirt_functions.stp if WITH_QEMU libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.lo nodist_libvirt_driver_qemu_la_SOURCES = libvirt_qemu_probes.h - -$(libvirt_driver_qemu_la_SOURCES): libvirt_qemu_probes.h endif tapsetdir = $(datadir)/systemtap/tapset @@ -1304,6 +1302,7 @@ tapset_DATA = libvirt_probes.stp libvirt_qemu_probes.stp libvirt_functions.stp %_probes.h: %_probes.d $(AM_V_GEN)$(DTRACE) -o $@ -h -s $< +.PRECIOUS: %_probes.o %_probes.o: %_probes.d $(AM_V_GEN)$(DTRACE) -o $@ -G -s $< -- 1.7.7.6

1 0

[libvirt] Compiling Error
by Alex Jia 29 May '12

29 May '12

Hi all, I met some compiling error since May 26: <snip> make[3]: Entering directory `/home/ajia/Workspace/libvirt/src' CCLD libvirt_driver_qemu.la libtool: link: `libvirt_qemu_probes.lo' is not a valid libtool object make[3]: *** [libvirt_driver_qemu.la] Error 1 make[3]: Leaving directory `/home/ajia/Workspace/libvirt/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/ajia/Workspace/libvirt/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/ajia/Workspace/libvirt' make: *** [all] Error 2 </snip> Some details: <snip> File `libvirt_driver_qemu.la' does not exist. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_agent.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_agent.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_command.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_conf.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_domain.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_capabilities.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_capabilities.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_command.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_bridge_filter.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_domain.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_migration.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_cgroup.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_cgroup.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_hostdev.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_hostdev.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_hotplug.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_hotplug.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_conf.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_process.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_process.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_migration.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor_text.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor_json.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor_text.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_monitor_json.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_driver.c'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_driver.h'. Prerequisite `libvirt_qemu_probes.h' is newer than target `qemu/qemu_bridge_filter.c'. Must remake target `libvirt_driver_qemu.la'. </snip> Notes, in fact, libvirt_driver_qemu.la hasn't been generated: [root@202 libvirt]# find . -name libvirt_driver_qemu.la [root@202 libvirt]# find . -name libvirt_qemu_probes.lo [root@202 libvirt]# Regards, Alex

4 6