mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-02 11:21:12 +00:00
94f8205359
To retrieve node cpu statistics on Linux system, the linuxNodeGetCPUstats function simply uses STRPREFIX() to match the cpuid with the one read from /proc/stat. However, as the file is read line by line it may happen, that some CPUs share the same prefix. So if user requested stats for the first CPU, which is offline, then there's no cpu1 in the stats file so the one that we match is cpu10. Which is obviously wrong. Fortunately, the IDs are terminated by a space, so we can utilize that. Signed-off-by: Bing Bu Cao <mars@linux.vnet.ibm.com> |
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| .. | ||
| access | ||
| conf | ||
| cpu | ||
| esx | ||
| hyperv | ||
| interface | ||
| libxl | ||
| locking | ||
| lxc | ||
| network | ||
| node_device | ||
| nwfilter | ||
| openvz | ||
| parallels | ||
| phyp | ||
| qemu | ||
| remote | ||
| rpc | ||
| secret | ||
| security | ||
| storage | ||
| test | ||
| uml | ||
| util | ||
| vbox | ||
| vmware | ||
| vmx | ||
| xen | ||
| xenapi | ||
| xenxs | ||
| check-aclperms.pl | ||
| check-aclrules.pl | ||
| check-driverimpls.pl | ||
| check-drivername.pl | ||
| check-symfile.pl | ||
| check-symsorting.pl | ||
| datatypes.c | ||
| datatypes.h | ||
| driver.c | ||
| driver.h | ||
| dtrace2systemtap.pl | ||
| fdstream.c | ||
| fdstream.h | ||
| gnutls_1_0_compat.h | ||
| internal.h | ||
| libvirt_atomic.syms | ||
| libvirt_daemon.syms | ||
| libvirt_driver_modules.syms | ||
| libvirt_esx.syms | ||
| libvirt_gnutls.syms | ||
| libvirt_internal.h | ||
| libvirt_libssh2.syms | ||
| libvirt_linux.syms | ||
| libvirt_lxc.syms | ||
| libvirt_openvz.syms | ||
| libvirt_private.syms | ||
| libvirt_probes.d | ||
| libvirt_public.syms | ||
| libvirt_qemu_probes.d | ||
| libvirt_qemu.syms | ||
| libvirt_remote.syms | ||
| libvirt_sasl.syms | ||
| libvirt_vmware.syms | ||
| libvirt_vmx.syms | ||
| libvirt_xenxs.syms | ||
| libvirt-lxc.c | ||
| libvirt-qemu.c | ||
| libvirt.c | ||
| libvirt.conf | ||
| lock_protocol-structs | ||
| lxc_monitor_protocol-structs | ||
| lxc_protocol-structs | ||
| Makefile.am | ||
| nodeinfo.c | ||
| nodeinfo.h | ||
| qemu_protocol-structs | ||
| README | ||
| remote_protocol-structs | ||
| virkeepaliveprotocol-structs | ||
| virnetprotocol-structs | ||
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