Module virterror from libvirt
Provides the interfaces of the libvirt library to handle errors raised while using the library.
Table of Contents
Types
typedef struct _virError virError typedef enum virErrorDomain typedef enum virErrorLevel typedef enum virErrorNumber typedef virError * virErrorPtr
Functions
int virConnCopyLastError (virConnectPtr conn,
virErrorPtr to) virErrorPtr virConnGetLastError (virConnectPtr conn) void virConnResetLastError (virConnectPtr conn) void virConnSetErrorFunc (virConnectPtr conn,
void * userData,
virErrorFunc handler) int virCopyLastError (virErrorPtr to) void virDefaultErrorFunc (virErrorPtr err) typedef virErrorFunc void virErrorFunc (void * userData,
virErrorPtr error) virErrorPtr virGetLastError (void) void virResetError (virErrorPtr err) void virResetLastError (void) void virSetErrorFunc (void * userData,
virErrorFunc handler)
Description
Types
virError
struct virError{
int | code | : The error code, a virErrorNumber |
int | domain | : What part of the library raised this error |
char * | message | : human-readable informative error message |
virErrorLevel | level | : how consequent is the error |
virConnectPtr | conn | : connection if available, deprecated see note above |
virDomainPtr | dom | : domain if available, deprecated see note above |
char * | str1 | : extra string information |
char * | str2 | : extra string information |
char * | str3 | : extra string information |
int | int1 | : extra number information |
int | int2 | : extra number information |
virNetworkPtr | net | : network if available, deprecated see note above |
}
virErrorDomain
enum virErrorDomain {
VIR_FROM_NONE | = | 0 | |
VIR_FROM_XEN | = | 1 | : Error at Xen hypervisor layer |
VIR_FROM_XEND | = | 2 | : Error at connection with xend daemon |
VIR_FROM_XENSTORE | = | 3 | : Error at connection with xen store |
VIR_FROM_SEXPR | = | 4 | : Error in the S-Expression code |
VIR_FROM_XML | = | 5 | : Error in the XML code |
VIR_FROM_DOM | = | 6 | : Error when operating on a domain |
VIR_FROM_RPC | = | 7 | : Error in the XML-RPC code |
VIR_FROM_PROXY | = | 8 | : Error in the proxy code |
VIR_FROM_CONF | = | 9 | : Error in the configuration file handling |
VIR_FROM_QEMU | = | 10 | : Error at the QEMU daemon |
VIR_FROM_NET | = | 11 | : Error when operating on a network |
VIR_FROM_TEST | = | 12 | : Error from test driver |
VIR_FROM_REMOTE | = | 13 | : Error from remote driver |
VIR_FROM_OPENVZ | = | 14 | : Error from OpenVZ driver |
VIR_FROM_XENXM | = | 15 | : Error at Xen XM layer |
VIR_FROM_STATS_LINUX | = | 16 | : Error in the Linux Stats code |
VIR_FROM_LXC | = | 17 | : Error from Linux Container driver |
VIR_FROM_STORAGE | = | 18 | : Error from storage driver |
VIR_FROM_NETWORK | = | 19 | : Error from network config |
VIR_FROM_DOMAIN | = | 20 | : Error from domain config |
}
virErrorLevel
enum virErrorLevel {
VIR_ERR_NONE | = | 0 | |
VIR_ERR_WARNING | = | 1 | : A simple warning |
VIR_ERR_ERROR | = | 2 | : An error |
}
virErrorNumber
enum virErrorNumber {
VIR_ERR_OK | = | 0 | |
VIR_ERR_INTERNAL_ERROR | = | 1 | : internal error |
VIR_ERR_NO_MEMORY | = | 2 | : memory allocation failure |
VIR_ERR_NO_SUPPORT | = | 3 | : no support for this function |
VIR_ERR_UNKNOWN_HOST | = | 4 | : could not resolve hostname |
VIR_ERR_NO_CONNECT | = | 5 | : can't connect to hypervisor |
VIR_ERR_INVALID_CONN | = | 6 | : invalid connection object |
VIR_ERR_INVALID_DOMAIN | = | 7 | : invalid domain object |
VIR_ERR_INVALID_ARG | = | 8 | : invalid function argument |
VIR_ERR_OPERATION_FAILED | = | 9 | : a command to hypervisor failed |
VIR_ERR_GET_FAILED | = | 10 | : a HTTP GET command to failed |
VIR_ERR_POST_FAILED | = | 11 | : a HTTP POST command to failed |
VIR_ERR_HTTP_ERROR | = | 12 | : unexpected HTTP error code |
VIR_ERR_SEXPR_SERIAL | = | 13 | : failure to serialize an S-Expr |
VIR_ERR_NO_XEN | = | 14 | : could not open Xen hypervisor control |
VIR_ERR_XEN_CALL | = | 15 | : failure doing an hypervisor call |
VIR_ERR_OS_TYPE | = | 16 | : unknown OS type |
VIR_ERR_NO_KERNEL | = | 17 | : missing kernel information |
VIR_ERR_NO_ROOT | = | 18 | : missing root device information |
VIR_ERR_NO_SOURCE | = | 19 | : missing source device information |
VIR_ERR_NO_TARGET | = | 20 | : missing target device information |
VIR_ERR_NO_NAME | = | 21 | : missing domain name information |
VIR_ERR_NO_OS | = | 22 | : missing domain OS information |
VIR_ERR_NO_DEVICE | = | 23 | : missing domain devices information |
VIR_ERR_NO_XENSTORE | = | 24 | : could not open Xen Store control |
VIR_ERR_DRIVER_FULL | = | 25 | : too many drivers registered |
VIR_ERR_CALL_FAILED | = | 26 | : not supported by the drivers (DEPRECATED) |
VIR_ERR_XML_ERROR | = | 27 | : an XML description is not well formed or broken |
VIR_ERR_DOM_EXIST | = | 28 | : the domain already exist |
VIR_ERR_OPERATION_DENIED | = | 29 | : operation forbidden on read-only connections |
VIR_ERR_OPEN_FAILED | = | 30 | : failed to open a conf file |
VIR_ERR_READ_FAILED | = | 31 | : failed to read a conf file |
VIR_ERR_PARSE_FAILED | = | 32 | : failed to parse a conf file |
VIR_ERR_CONF_SYNTAX | = | 33 | : failed to parse the syntax of a conf file |
VIR_ERR_WRITE_FAILED | = | 34 | : failed to write a conf file |
VIR_ERR_XML_DETAIL | = | 35 | : detail of an XML error |
VIR_ERR_INVALID_NETWORK | = | 36 | : invalid network object |
VIR_ERR_NETWORK_EXIST | = | 37 | : the network already exist |
VIR_ERR_SYSTEM_ERROR | = | 38 | : general system call failure |
VIR_ERR_RPC | = | 39 | : some sort of RPC error |
VIR_ERR_GNUTLS_ERROR | = | 40 | : error from a GNUTLS call |
VIR_WAR_NO_NETWORK | = | 41 | : failed to start network |
VIR_ERR_NO_DOMAIN | = | 42 | : domain not found or unexpectedly disappeared |
VIR_ERR_NO_NETWORK | = | 43 | : network not found |
VIR_ERR_INVALID_MAC | = | 44 | : invalid MAC address |
VIR_ERR_AUTH_FAILED | = | 45 | : authentication failed |
VIR_ERR_INVALID_STORAGE_POOL | = | 46 | : invalid storage pool object |
VIR_ERR_INVALID_STORAGE_VOL | = | 47 | : invalid storage vol object |
VIR_WAR_NO_STORAGE | = | 48 | : failed to start storage |
VIR_ERR_NO_STORAGE_POOL | = | 49 | : storage pool not found |
VIR_ERR_NO_STORAGE_VOL | = | 50 | : storage pool not found |
}
Functions
virConnCopyLastError
int virConnCopyLastError (virConnectPtr conn,
virErrorPtr to)
Copy the content of the last error caught on that connection One will need to free the result with virResetError()
conn: | pointer to the hypervisor connection |
to: | target to receive the copy |
Returns: | 0 if no error was found and the error code otherwise and -1 in case of parameter error. |
virConnGetLastError
virErrorPtr virConnGetLastError (virConnectPtr conn)
Provide a pointer to the last error caught on that connection Simpler but may not be suitable for multithreaded accesses, in which case use virConnCopyLastError()
conn: | pointer to the hypervisor connection |
Returns: | a pointer to the last error or NULL if none occurred. |
virConnResetLastError
void virConnResetLastError (virConnectPtr conn)
Reset the last error caught on that connection
conn: | pointer to the hypervisor connection |
virConnSetErrorFunc
void virConnSetErrorFunc (virConnectPtr conn,
void * userData,
virErrorFunc handler)
Set a connection error handling function, if @handler is NULL it will reset to default which is to pass error back to the global library handler.
conn: | pointer to the hypervisor connection |
userData: | pointer to the user data provided in the handler callback |
handler: | the function to get called in case of error or NULL |
virCopyLastError
int virCopyLastError (virErrorPtr to)
Copy the content of the last error caught at the library level One will need to free the result with virResetError()
to: | target to receive the copy |
Returns: | 0 if no error was found and the error code otherwise and -1 in case of parameter error. |
virDefaultErrorFunc
void virDefaultErrorFunc (virErrorPtr err)
Default routine reporting an error to stderr.
err: | pointer to the error. |
virErrorFunc
typedef void (*virErrorFunc ) (void * userData,
virErrorPtr error)
Signature of a function to use when there is an error raised by the library.
userData: | user provided data for the error callback |
error: | the error being raised. |
virGetLastError
virErrorPtr virGetLastError (void)
Provide a pointer to the last error caught at the library level Simpler but may not be suitable for multithreaded accesses, in which case use virCopyLastError()
Returns: | a pointer to the last error or NULL if none occurred. |
virResetError
void virResetError (virErrorPtr err)
Reset the error being pointed to
err: | pointer to the virError to clean up |
virResetLastError
void virResetLastError (void)
Reset the last error caught at the library level.
virSetErrorFunc
void virSetErrorFunc (void * userData,
virErrorFunc handler)
Set a library global error handling function, if @handler is NULL, it will reset to default printing on stderr. The error raised there are those for which no handler at the connection level could caught.
userData: | pointer to the user data provided in the handler callback |
handler: | the function to get called in case of error or NULL |