membership_update

March 26, 2020 Contributors

Name

membership_update

Synopsis

#include "hooks/cluster/membership_update.h"

| void **membership_update** ( | closure, |   |
|   | spc, |   |
|   | sender); |   |

void * <var class="pdparam">closure</var>;
sp_closure_t * <var class="pdparam">spc</var>;
const char * <var class="pdparam">sender</var>;

| int **has_cluster_membership_update_hook** ( | ); |   |

| void **register_cluster_membership_update_hook_first** ( | hook, |   |
|   | closure); |   |

ec_hook_cluster_membership_update_func_t <var class="pdparam">hook</var>;
void *<var class="pdparam">closure</var>;

| void **register_cluster_membership_update_hook_last** ( | hook, |   |
|   | closure); |   |

ec_hook_cluster_membership_update_func_t <var class="pdparam">hook</var>;
void *<var class="pdparam">closure</var>;

| void **call_cluster_membership_update_hook** ( | spc, |   |
|   | sender); |   |

sp_closure_t * <var class="pdparam">spc</var>;
const char * <var class="pdparam">sender</var>;

Description

Functions registered with this hook will be called whenever a cluster membership update is detected. The required arugments are the appropriate sp_closure_t structure and the group name of the change. The registered function should verify that it is the desired group.