libvirt/src
Daniel P. Berrange 0231e37a53 Fix race condition when destroying guests
When running virDomainDestroy, we need to make sure that no other
background thread cleans up the domain while we're doing our work.
This can happen if we release the domain object while in the
middle of work, because the monitor might detect EOF in this window.
For this reason we have a 'beingDestroyed' flag to stop the monitor
from doing its normal cleanup. Unfortunately this flag was only
being used to protect qemuDomainBeginJob, and not qemuProcessKill

This left open a race condition where either libvirtd could crash,
or alternatively report bogus error messages about the domain already
having been destroyed to the caller

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 81621f3e6e)

Conflicts:
	src/qemu/qemu_driver.c
2013-01-28 14:12:33 -05:00
..
conf conf: fix virDomainNetGetActualDirect*() and BridgeName() 2012-12-03 14:15:36 -05:00
cpu Cleanup for a return statement in source files 2012-03-26 14:45:22 -06:00
esx esx: Fix memory leaks in error paths related to transferred ownership 2012-06-14 18:16:48 -04:00
hyperv Consistent style for usage of sizeof operator 2012-03-30 11:47:24 +01:00
interface Cleanup for a return statement in source files 2012-03-26 14:45:22 -06:00
libxl build: fix unused variable after last patch 2012-06-14 18:22:51 -04:00
locking sanlock: Use STREQ_NULLABLE instead of STREQ on strings that may be null 2012-03-08 11:49:32 +01:00
lxc Don't autostart domains when reloading config 2012-08-12 19:23:51 -04:00
network network: prevent dnsmasq from listening on localhost 2012-12-13 12:43:58 -05:00
node_device node_device: fix possible non-terminated string 2012-06-14 11:16:40 -04:00
nwfilter nwfilter: address coverity findings 2012-04-27 14:17:01 -04:00
openvz openvz: Handle domain obj hash map errors 2012-08-12 19:23:51 -04:00
phyp Coverity: Fix resource leaks in phyp driver 2012-06-07 18:16:02 -04:00
qemu Fix race condition when destroying guests 2013-01-28 14:12:33 -05:00
remote keepalive: Add ability to disable keepalive messages 2012-08-12 21:15:47 -04:00
rpc rpc: Fix crash on error paths of message dispatching 2013-01-28 20:04:59 +01:00
secret secret: add Ceph secret type 2011-10-28 11:34:17 -06:00
security selinux: Don't fail RestoreAll if file doesn't have a default label 2012-10-27 15:46:10 -04:00
storage storage: lvm: Don't overwrite lvcreate errors 2012-10-27 15:25:12 -04:00
test Coverity: Fix resource leak in test driver 2012-06-14 11:16:04 -04:00
uml Don't autostart domains when reloading config 2012-08-12 19:23:51 -04:00
util util: fix botched check for new netlink request filters 2013-01-08 12:44:45 -05:00
vbox vbox: Fix passing an empty IMedium* array to IMachine::Delete 2012-04-25 16:40:53 -04:00
vmware build: use correct type for pid and similar types 2012-03-02 06:57:43 -07:00
vmx vmx: fix resource leak 2012-06-14 11:16:26 -04:00
xen Ensure failure to talk to Xen hypervisor is fatal when privileged 2012-08-12 19:23:51 -04:00
xenapi Consistent style for usage of sizeof operator 2012-03-30 11:47:24 +01:00
xenxs Remove last usage of PATH_MAX and ban its future use 2012-06-14 18:22:52 -04:00
datatypes.c Cleanup for a return statement in source files 2012-03-26 14:45:22 -06:00
datatypes.h Fixed URI parsing 2012-02-24 16:49:21 -07:00
driver.c libvirt: do not mix internal flags into public API 2011-07-18 13:50:51 -06:00
driver.h xml: use long long internally, to centralize overflow checks 2012-03-07 18:24:43 -07:00
dtrace2systemtap.pl Add a systemtap script for watching QEMU monitor interactions 2011-10-27 10:42:14 +01:00
fdstream.c fdstream: avoid double close bug 2012-06-14 18:23:21 -04:00
fdstream.h fdstream: Add internal callback on stream close 2012-02-27 15:05:17 +01:00
gnutls_1_0_compat.h Fix detection of GnuTLS 1.x.y 2011-08-03 19:22:29 +02:00
internal.h build: make ATTRIBUTE_NONNULL() a NOP unless STATIC_ANALYSIS is on 2012-06-07 18:08:53 -04:00
libvirt_daemon.syms
libvirt_dbus.syms Fix build on Mingw32 wrt export of virNetServerGetDBusConn 2011-11-21 11:46:52 +00:00
libvirt_driver_modules.syms
libvirt_internal.h Introduce virConnectSetKeepAlive 2011-11-24 11:44:08 +01:00
libvirt_linux.syms Add linuxNodeInfoCPUPopulate to src/libvirt_linux.syms 2012-04-16 12:39:08 +01:00
libvirt_network.syms network: provide internal API to return IP of a network 2011-07-25 13:48:55 +08:00
libvirt_nwfilter.syms
libvirt_private.syms util: new virSocketAddrIsPrivate function 2012-11-29 21:36:45 -05:00
libvirt_public.syms Introduce virDomainPMWakeup API 2012-02-27 11:43:59 +01:00
libvirt_qemu.syms Define a QEMU specific API to attach to a running QEMU process 2011-07-12 15:39:03 +01:00
libvirt_sasl.syms build: fix mingw build without sasl 2011-10-11 16:30:25 -06:00
libvirt_vmx.syms esx: Move VMX handling code out of the driver directory 2010-12-21 22:40:17 +01:00
libvirt_xenxs.syms Fix build with --with-driver-modules enabled 2011-05-27 09:51:28 +02:00
libvirt-qemu.c build: use correct type for pid and similar types 2012-03-02 06:57:43 -07:00
libvirt.c keepalive: Add ability to disable keepalive messages 2012-08-12 21:15:47 -04:00
libvirt.conf Allow overriding default URI in config file 2012-03-15 11:20:17 +00:00
Makefile.am Fix typo s/AM_CLFAGS/AM_CFLAGS/ in sanlock link 2012-08-12 21:15:46 -04:00
nodeinfo.c S390: Fixed Parser for /proc/cpuinfo needs to be adapted for your architecture 2012-08-12 19:22:10 -04:00
nodeinfo.h add nodeGetCPUmap() for getting available CPU IDs in a cpumap. 2012-03-06 21:54:48 -07:00
probes.d rpc: Remove unused parameter in virKeepAliveStopInternal 2012-08-12 21:15:47 -04:00
qemu_protocol-structs build: use correct type for pid and similar types 2012-03-02 06:57:43 -07:00
README hyperv: Add basic documentation 2011-08-26 17:52:55 +02:00
remote_protocol-structs build: fix incorrect enum declaration 2012-03-23 14:29:00 -06:00
virkeepaliveprotocol-structs build: Properly generate and check virkeepaliveprotocol-structs 2011-11-24 14:44:04 +01:00
virnetprotocol-structs Extend RPC protocol to allow FD passing 2011-10-28 10:27:15 +01:00

       libvirt library code README
       ===========================

The directory provides the bulk of the libvirt codebase. Everything
except for the libvirtd daemon and client tools. The build uses a
large number of libtool convenience libraries - one for each child
directory, and then links them together for the final libvirt.so,
although some bits get linked directly to libvirtd daemon instead.

The files directly in this directory are supporting the public API
entry points & data structures.

There are two core shared modules to be aware of:

 * util/  - a collection of shared APIs that can be used by any
            code. This directory is always in the include path
            for all things built

 * conf/  - APIs for parsing / manipulating all the official XML
            files used by the public API. This directory is only
            in the include path for driver implementation modules

 * vmx/   - VMware VMX config handling (used by esx/ and vmware/)


Then there are the hypervisor implementations:

 * esx/          - VMware ESX and GSX support using vSphere API over SOAP
 * hyperv/       - Microsoft Hyper-V support using WinRM
 * lxc/          - Linux Native Containers
 * openvz/       - OpenVZ containers using cli tools
 * phyp/         - IBM Power Hypervisor using CLI tools over SSH
 * qemu/         - QEMU / KVM using qemu CLI/monitor
 * remote/       - Generic libvirt native RPC client
 * test/         - A "mock" driver for testing
 * uml/          - User Mode Linux
 * vbox/         - Virtual Box using native API
 * vmware/       - VMware Workstation and Player using the vmrun tool
 * xen/          - Xen using hypercalls, XenD SEXPR & XenStore
 * xenapi/       - Xen using libxenserver


Finally some secondary drivers that are shared for several HVs.
Currently these are used by LXC, OpenVZ, QEMU, UML and Xen drivers.
The ESX, Hyper-V, Power Hypervisor, Remote, Test & VirtualBox drivers all
implement the secondary drivers directly

 * cpu/          - CPU feature management
 * interface/    - Host network interface management
 * network/      - Virtual NAT networking
 * nwfilter/     - Network traffic filtering rules
 * node_device/  - Host device enumeration
 * secret/       - Secret management
 * security/     - Mandatory access control drivers
 * storage/      - Storage management drivers


Since both the hypervisor and secondary drivers can be built as
dlopen()able modules, it is *FORBIDDEN* to have build dependencies
between these directories. Drivers are only allowed to depend on
the public API, and the internal APIs in the util/ and conf/
directories