diff options
Diffstat (limited to 'xlators/experimental/jbr-server/src/jbr-internal.h')
| -rw-r--r-- | xlators/experimental/jbr-server/src/jbr-internal.h | 147 |
1 files changed, 74 insertions, 73 deletions
diff --git a/xlators/experimental/jbr-server/src/jbr-internal.h b/xlators/experimental/jbr-server/src/jbr-internal.h index 46a29910d1f..f225e988a5f 100644 --- a/xlators/experimental/jbr-server/src/jbr-internal.h +++ b/xlators/experimental/jbr-server/src/jbr-internal.h @@ -11,82 +11,82 @@ #include <sys/stat.h> #include <sys/types.h> -#define LEADER_XATTR "user.jbr.leader" -#define SECOND_CHILD(xl) (xl->children->next->xlator) -#define RECONCILER_PATH JBR_SCRIPT_PREFIX"/reconciler.py" -#define CHANGELOG_ENTRY_SIZE 128 +#define LEADER_XATTR "user.jbr.leader" +#define SECOND_CHILD(xl) (xl->children->next->xlator) +#define RECONCILER_PATH JBR_SCRIPT_PREFIX "/reconciler.py" +#define CHANGELOG_ENTRY_SIZE 128 enum { - gf_mt_jbr_private_t = gf_common_mt_end + 1, - gf_mt_jbr_fd_ctx_t, - gf_mt_jbr_inode_ctx_t, - gf_mt_jbr_dirty_t, - gf_mt_jbr_end + gf_mt_jbr_private_t = gf_common_mt_end + 1, + gf_mt_jbr_fd_ctx_t, + gf_mt_jbr_inode_ctx_t, + gf_mt_jbr_dirty_t, + gf_mt_jbr_end }; typedef enum jbr_recon_notify_ev_id_t { - JBR_RECON_SET_LEADER = 1, - JBR_RECON_ADD_CHILD = 2 + JBR_RECON_SET_LEADER = 1, + JBR_RECON_ADD_CHILD = 2 } jbr_recon_notify_ev_id_t; typedef struct _jbr_recon_notify_ev_s { - jbr_recon_notify_ev_id_t id; - uint32_t index; /* in case of add */ - struct list_head list; + jbr_recon_notify_ev_id_t id; + uint32_t index; /* in case of add */ + struct list_head list; } jbr_recon_notify_ev_t; typedef struct { - /* - * This is a hack to allow a non-leader to accept requests while the - * leader is down, and it only works for n=2. The way it works is that - * "config_leader" indicates the state from our options (via init or - * reconfigure) but "leader" is what the fop code actually looks at. If - * config_leader is true, then leader will *always* be true as well, - * giving that brick precedence. If config_leader is false, then - * leader will only be true if there is no connection to the other - * brick (tracked in jbr_notify). - * - * TBD: implement real leader election - */ - gf_boolean_t config_leader; - gf_boolean_t leader; - uint8_t up_children; - uint8_t n_children; - char *vol_file; - uint32_t current_term; - uint32_t kid_state; - gf_lock_t dirty_lock; - struct list_head dirty_fds; - uint32_t index; - gf_lock_t index_lock; - double quorum_pct; - int term_fd; - long term_total; - long term_read; - /* - * This is a super-duper hack, but it will do for now. The reason it's - * a hack is that we pass this to dict_set_static_bin, so we don't have - * to mess around with allocating and freeing it on every single IPC - * request, but it's totally not thread-safe. On the other hand, there - * should only be one reconciliation thread running and calling these - * functions at a time, so maybe that doesn't matter. - * - * TBD: re-evaluate how to manage this - */ - char term_buf[CHANGELOG_ENTRY_SIZE]; - gf_boolean_t child_up; /* To maintain the state of * - * the translator */ + /* + * This is a hack to allow a non-leader to accept requests while the + * leader is down, and it only works for n=2. The way it works is that + * "config_leader" indicates the state from our options (via init or + * reconfigure) but "leader" is what the fop code actually looks at. If + * config_leader is true, then leader will *always* be true as well, + * giving that brick precedence. If config_leader is false, then + * leader will only be true if there is no connection to the other + * brick (tracked in jbr_notify). + * + * TBD: implement real leader election + */ + gf_boolean_t config_leader; + gf_boolean_t leader; + uint8_t up_children; + uint8_t n_children; + char *vol_file; + uint32_t current_term; + uint32_t kid_state; + gf_lock_t dirty_lock; + struct list_head dirty_fds; + uint32_t index; + gf_lock_t index_lock; + double quorum_pct; + int term_fd; + long term_total; + long term_read; + /* + * This is a super-duper hack, but it will do for now. The reason it's + * a hack is that we pass this to dict_set_static_bin, so we don't have + * to mess around with allocating and freeing it on every single IPC + * request, but it's totally not thread-safe. On the other hand, there + * should only be one reconciliation thread running and calling these + * functions at a time, so maybe that doesn't matter. + * + * TBD: re-evaluate how to manage this + */ + char term_buf[CHANGELOG_ENTRY_SIZE]; + gf_boolean_t child_up; /* To maintain the state of * + * the translator */ } jbr_private_t; typedef struct { - call_stub_t *stub; - call_stub_t *qstub; - uint32_t call_count; - uint32_t successful_acks; - uint32_t successful_op_ret; - fd_t *fd; - struct list_head qlinks; - dict_t *xdata; + call_stub_t *stub; + call_stub_t *qstub; + uint32_t call_count; + uint32_t successful_acks; + uint32_t successful_op_ret; + fd_t *fd; + struct list_head qlinks; + dict_t *xdata; } jbr_local_t; /* @@ -96,22 +96,23 @@ typedef struct { typedef uint32_t log_id_t; typedef struct { - struct list_head links; - log_id_t id; + struct list_head links; + log_id_t id; } jbr_dirty_list_t; typedef struct { - fd_t *fd; - struct list_head dirty_list; - struct list_head fd_list; + fd_t *fd; + struct list_head dirty_list; + struct list_head fd_list; } jbr_fd_ctx_t; typedef struct { - gf_lock_t lock; - uint32_t active; - struct list_head aqueue; - uint32_t pending; - struct list_head pqueue; + gf_lock_t lock; + uint32_t active; + struct list_head aqueue; + uint32_t pending; + struct list_head pqueue; } jbr_inode_ctx_t; -void jbr_start_reconciler (xlator_t *this); +void +jbr_start_reconciler(xlator_t *this); |