fence-virt/include/server_plugin.h
Lon Hohberger fec2b03eeb Make serial_init match mcast_init.
Signed-off-by: Lon Hohberger <lhh@redhat.com>
2009-08-20 12:33:05 -04:00

97 lines
2.8 KiB
C

/* */
#include <uuid/uuid.h>
#define PLUGIN_VERSION_FRONTEND ((double)0.1)
#define PLUGIN_VERSION_BACKEND ((double)0.1)
#define FRONTEND_VER_SYM frontend_plugin_version
#define BACKEND_VER_SYM backend_plugin_version
#define FRONTEND_INFO_SYM frontend_plugin_info
#define BACKEND_INFO_SYM backend_plugin_info
#define FRONTEND_VER_STR "frontend_plugin_version"
#define BACKEND_VER_STR "backend_plugin_version"
#define FRONTEND_INFO_STR "frontend_plugin_info"
#define BACKEND_INFO_STR "backend_plugin_info"
typedef void * srv_context_t;
/* These callbacks hand requests off to the
appropriate backend. */
/* Do nothing. Returns 1 (failure) to caller */
typedef int (*fence_null_callback)(const char *vm_name,
void *priv);
/* Turn the VM 'off'. Returns 0 to caller if successful or
nonzero if unsuccessful. */
typedef int (*fence_off_callback)(const char *vm_name,
void *priv);
/* Turn the VM 'on'. Returns 0 to caller if successful or
nonzero if unsuccessful. */
typedef int (*fence_on_callback)(const char *vm_name,
void *priv);
/* Reboot a VM. Returns 0 to caller if successful or
nonzero if unsuccessful. */
typedef int (*fence_reboot_callback)(const char *vm_name,
void *priv);
/* Get status of a VM. Returns 0 to caller if VM is alive or
nonzero if VM is not alive. */
typedef int (*fence_status_callback)(const char *vm_name,
void *priv);
/* Get status of backend. Returns 0 to caller if backend
is responding to requests. */
typedef int (*fence_devstatus_callback)(void *priv);
typedef int (*fence_init_callback)(srv_context_t *c, config_object_t *config);
typedef int (*fence_cleanup_callback)(srv_context_t c);
typedef struct _fence_callbacks {
fence_null_callback null;
fence_off_callback off;
fence_on_callback on;
fence_reboot_callback reboot;
fence_status_callback status;
fence_devstatus_callback devstatus;
} fence_callbacks_t;
typedef struct _backend_plugin {
const char *name;
const char *version;
const fence_callbacks_t *callbacks;
fence_init_callback init;
fence_cleanup_callback cleanup;
} plugin_t;
int plugin_register(const plugin_t *plugin);
const plugin_t *plugin_find(const char *name);
void plugin_dump(void);
#ifdef _MODULE
int plugin_load(const char *libpath);
#endif
/* TODO: make these 'plugins' instead of static uses */
typedef void serial_options;
/* Directory path / hypervisor uri if using libvirt...
.. whatever you think you need... */
int serial_init(srv_context_t *, fence_callbacks_t *,
config_object_t *, void *priv);
/* NULL = no timeout; wait forever */
int serial_dispatch(srv_context_t, struct timeval *timeout);
int serial_shutdown(srv_context_t);
int mcast_init(srv_context_t *, const fence_callbacks_t *,
config_object_t *, void *priv);
int mcast_dispatch(srv_context_t, struct timeval *timeout);
int mcast_shutdown(srv_context_t);