diff options
| author | Soumya Koduri <skoduri@redhat.com> | 2015-02-16 11:47:58 +0530 |
|---|---|---|
| committer | Kaleb KEITHLEY <kkeithle@redhat.com> | 2015-03-17 14:01:21 -0700 |
| commit | 2a4561ef08b8be3b7d79b951252e87ba8f987120 (patch) | |
| tree | ed5cc0c87f6532b167ebb2b775389a9a391a3cf4 /api/src/glfs-internal.h | |
| parent | d81182cf69a4f188f304fcce6d651ffd56b67aac (diff) | |
gfapi: APIs to store and process upcall notifications received
In case of any upcall cbk events received by the protocol/client,
gfapi will be notified which queues them up in a list (<gfapi_cbk_upcall>).
Applicatons are responsible to provide APIs to process & notify them in case
of any such upcall events queued.
Added a new API which will be used by Ganesha to repeatedly poll for any
such upcall event notified (<glfs_h_poll_upcall>).
A new test-file has been added to test the cache_invalidation upcall events.
Below link has a writeup which explains the code changes done -
URL: https://soumyakoduri.wordpress.com/2015/02/25/glusterfs-understanding-upcall-infrastructure-and-cache-invalidation-support/
Change-Id: Iafc6880000c865fd4da22d0cfc388ec135b5a1c5
BUG: 1200262
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: http://review.gluster.org/9536
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Diffstat (limited to 'api/src/glfs-internal.h')
| -rw-r--r-- | api/src/glfs-internal.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/api/src/glfs-internal.h b/api/src/glfs-internal.h index b704c558722..2c0dfe8074e 100644 --- a/api/src/glfs-internal.h +++ b/api/src/glfs-internal.h @@ -108,6 +108,25 @@ struct glfs; +/* This enum should be in sync with + * 'upcall_event_type' declared in + * 'xlators/features/upcall/src/upcall.h' + */ +enum upcall_event_type_t { + EVENT_NULL, + CACHE_INVALIDATION, +}; +typedef enum upcall_event_type_t upcall_event_type; + +struct _upcall_entry_t { + struct list_head upcall_list; + uuid_t gfid; + upcall_event_type event_type; + uint32_t flags; + uint32_t expire_time_attr; +}; +typedef struct _upcall_entry_t upcall_entry; + typedef int (*glfs_init_cbk) (struct glfs *fs, int ret); struct glfs { @@ -140,6 +159,11 @@ struct glfs { struct list_head openfds; gf_boolean_t migration_in_progress; + + struct list_head upcall_list; + pthread_mutex_t upcall_list_mutex; /* mutex for upcall entry list */ + + uint32_t pin_refcnt; }; struct glfs_fd { @@ -182,6 +206,9 @@ fd_t *__glfs_migrate_fd (struct glfs *fs, xlator_t *subvol, struct glfs_fd *glfd int glfs_first_lookup (xlator_t *subvol); +void glfs_process_upcall_event (struct glfs *fs, void *data); + GFAPI_PRIVATE(glfs_process_upcall_event, 3.7.0); + static inline void __glfs_entry_fs (struct glfs *fs) { |