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https://gitlab.com/libvirt/libvirt.git
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6a943419c5
Define the basic framework lock manager plugins. The
basic plugin API for 3rd parties to implemented is
defined in
src/locking/lock_driver.h
This allows dlopen()able modules for alternative locking
schemes, however, we do not install the header. This
requires lock plugins to be in-tree allowing changing of
the lock manager plugin API in future.
The libvirt code for loading & calling into plugins
is in
src/locking/lock_manager.{c,h}
* include/libvirt/virterror.h, src/util/virterror.c: Add
VIR_FROM_LOCKING
* src/locking/lock_driver.h: API for lock driver plugins
to implement
* src/locking/lock_manager.c, src/locking/lock_manager.h:
Internal API for managing locking
* src/Makefile.am: Add locking code
275 lines
12 KiB
C
275 lines
12 KiB
C
/*
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* virterror.h:
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* Summary: error handling interfaces for the libvirt library
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* Description: Provides the interfaces of the libvirt library to handle
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* errors raised while using the library.
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*
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* Copy: Copyright (C) 2006, 2010 Red Hat, Inc.
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*
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* See COPYING.LIB for the License of this software
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*
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* Author: Daniel Veillard <veillard@redhat.com>
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*/
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#ifndef __VIR_VIRERR_H__
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# define __VIR_VIRERR_H__
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# include <libvirt/libvirt.h>
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# ifdef __cplusplus
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extern "C" {
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# endif
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/**
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* virErrorLevel:
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*
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* Indicates the level of an error
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*/
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typedef enum {
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VIR_ERR_NONE = 0,
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VIR_ERR_WARNING = 1, /* A simple warning */
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VIR_ERR_ERROR = 2 /* An error */
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} virErrorLevel;
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/**
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* virErrorDomain:
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*
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* Indicates where an error may have come from. This should remain
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* stable, with all additions placed at the end since libvirt 0.1.0.
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*/
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typedef enum {
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VIR_FROM_NONE = 0,
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VIR_FROM_XEN = 1, /* Error at Xen hypervisor layer */
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VIR_FROM_XEND = 2, /* Error at connection with xend daemon */
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VIR_FROM_XENSTORE = 3, /* Error at connection with xen store */
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VIR_FROM_SEXPR = 4, /* Error in the S-Expression code */
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VIR_FROM_XML = 5, /* Error in the XML code */
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VIR_FROM_DOM = 6, /* Error when operating on a domain */
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VIR_FROM_RPC = 7, /* Error in the XML-RPC code */
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VIR_FROM_PROXY = 8, /* Error in the proxy code; unused since
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0.8.6 */
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VIR_FROM_CONF = 9, /* Error in the configuration file handling */
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VIR_FROM_QEMU = 10, /* Error at the QEMU daemon */
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VIR_FROM_NET = 11, /* Error when operating on a network */
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VIR_FROM_TEST = 12, /* Error from test driver */
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VIR_FROM_REMOTE = 13, /* Error from remote driver */
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VIR_FROM_OPENVZ = 14, /* Error from OpenVZ driver */
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VIR_FROM_XENXM = 15, /* Error at Xen XM layer */
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VIR_FROM_STATS_LINUX = 16, /* Error in the Linux Stats code */
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VIR_FROM_LXC = 17, /* Error from Linux Container driver */
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VIR_FROM_STORAGE = 18, /* Error from storage driver */
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VIR_FROM_NETWORK = 19, /* Error from network config */
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VIR_FROM_DOMAIN = 20, /* Error from domain config */
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VIR_FROM_UML = 21, /* Error at the UML driver */
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VIR_FROM_NODEDEV = 22, /* Error from node device monitor */
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VIR_FROM_XEN_INOTIFY = 23, /* Error from xen inotify layer */
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VIR_FROM_SECURITY = 24, /* Error from security framework */
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VIR_FROM_VBOX = 25, /* Error from VirtualBox driver */
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VIR_FROM_INTERFACE = 26, /* Error when operating on an interface */
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VIR_FROM_ONE = 27, /* The OpenNebula driver no longer exists. Retained for ABI/API compat only */
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VIR_FROM_ESX = 28, /* Error from ESX driver */
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VIR_FROM_PHYP = 29, /* Error from IBM power hypervisor */
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VIR_FROM_SECRET = 30, /* Error from secret storage */
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VIR_FROM_CPU = 31, /* Error from CPU driver */
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VIR_FROM_XENAPI = 32, /* Error from XenAPI */
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VIR_FROM_NWFILTER = 33, /* Error from network filter driver */
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VIR_FROM_HOOK = 34, /* Error from Synchronous hooks */
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VIR_FROM_DOMAIN_SNAPSHOT = 35,/* Error from domain snapshot */
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VIR_FROM_AUDIT = 36, /* Error from auditing subsystem */
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VIR_FROM_SYSINFO = 37, /* Error from sysinfo/SMBIOS */
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VIR_FROM_STREAMS = 38, /* Error from I/O streams */
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VIR_FROM_VMWARE = 39, /* Error from VMware driver */
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VIR_FROM_EVENT = 40, /* Error from event loop impl */
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VIR_FROM_LIBXL = 41, /* Error from libxenlight driver */
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VIR_FROM_LOCKING = 42, /* Error from lock manager */
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} virErrorDomain;
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/**
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* virError:
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*
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* A libvirt Error instance.
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*
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* The conn, dom and net fields should be used with extreme care.
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* Reference counts are not incremented so the underlying objects
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* may be deleted without notice after the error has been delivered.
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*/
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typedef struct _virError virError;
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typedef virError *virErrorPtr;
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struct _virError {
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int code; /* The error code, a virErrorNumber */
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int domain; /* What part of the library raised this error */
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char *message;/* human-readable informative error message */
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virErrorLevel level;/* how consequent is the error */
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virConnectPtr conn VIR_DEPRECATED; /* connection if available, deprecated
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see note above */
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virDomainPtr dom VIR_DEPRECATED; /* domain if available, deprecated
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see note above */
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char *str1; /* extra string information */
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char *str2; /* extra string information */
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char *str3; /* extra string information */
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int int1; /* extra number information */
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int int2; /* extra number information */
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virNetworkPtr net VIR_DEPRECATED; /* network if available, deprecated
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see note above */
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};
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/**
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* virErrorNumber:
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*
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* The full list of errors the library can generate
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*
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* This list should remain stable, with all additions placed at the
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* end since libvirt 0.1.0. There is one exception: values added
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* between libvirt 0.7.1 and libvirt 0.7.7 (VIR_WAR_NO_SECRET through
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* VIR_ERR_MIGRATE_PERSIST_FAILED) were inadvertently relocated by
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* four positions in 0.8.0. If you suspect version mismatch between a
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* server and client, then you can decipher values as follows:
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*
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* switch (err.code) {
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* case 60:
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* // no way to tell VIR_WAR_NO_SECRET apart from VIR_WAR_NO_NWFILTER,
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* // but both are very similar warnings
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* break;
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* case 61: case 62: case 63:
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* if (err.domain != VIR_FROM_NWFILTER)
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* err.code += 4;
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* break;
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* case 64:
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* if (err.domain == VIR_FROM_QEMU)
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* err.code += 4;
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* break;
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* case 65:
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* if (err.domain == VIR_FROM_XEN)
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* err.code += 4;
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* break;
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* default:
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* }
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*/
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typedef enum {
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VIR_ERR_OK = 0,
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VIR_ERR_INTERNAL_ERROR = 1, /* internal error */
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VIR_ERR_NO_MEMORY = 2, /* memory allocation failure */
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VIR_ERR_NO_SUPPORT = 3, /* no support for this function */
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VIR_ERR_UNKNOWN_HOST = 4, /* could not resolve hostname */
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VIR_ERR_NO_CONNECT = 5, /* can't connect to hypervisor */
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VIR_ERR_INVALID_CONN = 6, /* invalid connection object */
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VIR_ERR_INVALID_DOMAIN = 7, /* invalid domain object */
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VIR_ERR_INVALID_ARG = 8, /* invalid function argument */
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VIR_ERR_OPERATION_FAILED = 9, /* a command to hypervisor failed */
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VIR_ERR_GET_FAILED = 10, /* a HTTP GET command to failed */
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VIR_ERR_POST_FAILED = 11, /* a HTTP POST command to failed */
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VIR_ERR_HTTP_ERROR = 12, /* unexpected HTTP error code */
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VIR_ERR_SEXPR_SERIAL = 13, /* failure to serialize an S-Expr */
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VIR_ERR_NO_XEN = 14, /* could not open Xen hypervisor
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control */
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VIR_ERR_XEN_CALL = 15, /* failure doing an hypervisor call */
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VIR_ERR_OS_TYPE = 16, /* unknown OS type */
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VIR_ERR_NO_KERNEL = 17, /* missing kernel information */
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VIR_ERR_NO_ROOT = 18, /* missing root device information */
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VIR_ERR_NO_SOURCE = 19, /* missing source device information */
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VIR_ERR_NO_TARGET = 20, /* missing target device information */
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VIR_ERR_NO_NAME = 21, /* missing domain name information */
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VIR_ERR_NO_OS = 22, /* missing domain OS information */
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VIR_ERR_NO_DEVICE = 23, /* missing domain devices information */
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VIR_ERR_NO_XENSTORE = 24, /* could not open Xen Store control */
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VIR_ERR_DRIVER_FULL = 25, /* too many drivers registered */
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VIR_ERR_CALL_FAILED = 26, /* not supported by the drivers
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(DEPRECATED) */
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VIR_ERR_XML_ERROR = 27, /* an XML description is not well
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formed or broken */
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VIR_ERR_DOM_EXIST = 28, /* the domain already exist */
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VIR_ERR_OPERATION_DENIED = 29, /* operation forbidden on read-only
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connections */
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VIR_ERR_OPEN_FAILED = 30, /* failed to open a conf file */
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VIR_ERR_READ_FAILED = 31, /* failed to read a conf file */
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VIR_ERR_PARSE_FAILED = 32, /* failed to parse a conf file */
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VIR_ERR_CONF_SYNTAX = 33, /* failed to parse the syntax of a
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conf file */
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VIR_ERR_WRITE_FAILED = 34, /* failed to write a conf file */
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VIR_ERR_XML_DETAIL = 35, /* detail of an XML error */
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VIR_ERR_INVALID_NETWORK = 36, /* invalid network object */
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VIR_ERR_NETWORK_EXIST = 37, /* the network already exist */
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VIR_ERR_SYSTEM_ERROR = 38, /* general system call failure */
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VIR_ERR_RPC = 39, /* some sort of RPC error */
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VIR_ERR_GNUTLS_ERROR = 40, /* error from a GNUTLS call */
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VIR_WAR_NO_NETWORK = 41, /* failed to start network */
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VIR_ERR_NO_DOMAIN = 42, /* domain not found or unexpectedly
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disappeared */
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VIR_ERR_NO_NETWORK = 43, /* network not found */
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VIR_ERR_INVALID_MAC = 44, /* invalid MAC address */
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VIR_ERR_AUTH_FAILED = 45, /* authentication failed */
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VIR_ERR_INVALID_STORAGE_POOL = 46, /* invalid storage pool object */
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VIR_ERR_INVALID_STORAGE_VOL = 47, /* invalid storage vol object */
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VIR_WAR_NO_STORAGE = 48, /* failed to start storage */
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VIR_ERR_NO_STORAGE_POOL = 49, /* storage pool not found */
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VIR_ERR_NO_STORAGE_VOL = 50, /* storage pool not found */
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VIR_WAR_NO_NODE = 51, /* failed to start node driver */
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VIR_ERR_INVALID_NODE_DEVICE = 52, /* invalid node device object */
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VIR_ERR_NO_NODE_DEVICE = 53, /* node device not found */
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VIR_ERR_NO_SECURITY_MODEL = 54, /* security model not found */
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VIR_ERR_OPERATION_INVALID = 55, /* operation is not applicable at this
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time */
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VIR_WAR_NO_INTERFACE = 56, /* failed to start interface driver */
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VIR_ERR_NO_INTERFACE = 57, /* interface driver not running */
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VIR_ERR_INVALID_INTERFACE = 58, /* invalid interface object */
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VIR_ERR_MULTIPLE_INTERFACES = 59, /* more than one matching interface
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found */
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VIR_WAR_NO_NWFILTER = 60, /* failed to start nwfilter driver */
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VIR_ERR_INVALID_NWFILTER = 61, /* invalid nwfilter object */
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VIR_ERR_NO_NWFILTER = 62, /* nw filter pool not found */
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VIR_ERR_BUILD_FIREWALL = 63, /* nw filter pool not found */
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VIR_WAR_NO_SECRET = 64, /* failed to start secret storage */
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VIR_ERR_INVALID_SECRET = 65, /* invalid secret */
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VIR_ERR_NO_SECRET = 66, /* secret not found */
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VIR_ERR_CONFIG_UNSUPPORTED = 67, /* unsupported configuration
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construct */
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VIR_ERR_OPERATION_TIMEOUT = 68, /* timeout occurred during operation */
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VIR_ERR_MIGRATE_PERSIST_FAILED = 69,/* a migration worked, but making the
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VM persist on the dest host failed */
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VIR_ERR_HOOK_SCRIPT_FAILED = 70, /* a synchronous hook script failed */
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VIR_ERR_INVALID_DOMAIN_SNAPSHOT = 71,/* invalid domain snapshot */
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VIR_ERR_NO_DOMAIN_SNAPSHOT = 72, /* domain snapshot not found */
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VIR_ERR_INVALID_STREAM = 73, /* stream pointer not valid */
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} virErrorNumber;
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/**
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* virErrorFunc:
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* @userData: user provided data for the error callback
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* @error: the error being raised.
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*
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* Signature of a function to use when there is an error raised by the library.
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*/
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typedef void (*virErrorFunc) (void *userData, virErrorPtr error);
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/*
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* Errors can be handled as asynchronous callbacks or after the routine
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* failed. They can also be handled globally at the library level, or
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* at the connection level (which then has priority).
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*/
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virErrorPtr virGetLastError (void);
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virErrorPtr virSaveLastError (void);
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void virResetLastError (void);
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void virResetError (virErrorPtr err);
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void virFreeError (virErrorPtr err);
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virErrorPtr virConnGetLastError (virConnectPtr conn);
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void virConnResetLastError (virConnectPtr conn);
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int virCopyLastError (virErrorPtr to);
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void virDefaultErrorFunc (virErrorPtr err);
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void virSetErrorFunc (void *userData,
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virErrorFunc handler);
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void virConnSetErrorFunc (virConnectPtr conn,
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void *userData,
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virErrorFunc handler);
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int virConnCopyLastError (virConnectPtr conn,
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virErrorPtr to);
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# ifdef __cplusplus
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}
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# endif
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#endif /* __VIR_VIRERR_H__ */
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