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cpg_fd_get(3) [centos man page]

CPG_FD_GET(3)					    Corosync Cluster Engine Programmer's Manual 				     CPG_FD_GET(3)

NAME
cpg_fd_get - Dispatches callbacks from the CPG service SYNOPSIS
#include <corosync/cpg.h> int cpg_fd_get(cpg_handle_t handle, int *fd); DESCRIPTION
The cpg_fd_get function is used to retrieve the file descriptor that may be used with the poll system call to determine when cpg_dis- patch(3) won't block. The handle argument may not be used directly with poll because it is not the file descriptor, but instead an inter- nal identifier used by the CPG library. RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is returned. ERRORS
The errors are undocumented. SEE ALSO
cpg_overview(8), cpg_initialize(3), cpg_finalize(3), cpg_fd_get(3), cpg_dispatch(3), cpg_join(3), cpg_leave(3), cpg_mcast_joined(3), cpg_membership_get(3) cpg_zcb_alloc(3) cpg_zcb_free(3) cpg_zcb_mcast_joined(3) cpg_context_get(3) cpg_context_set(3) cpg_local_get(3) CS_ERR_TRY_AGAIN Resource temporarily unavailable CS_ERR_INVALID_PARAM Invalid argument CS_ERR_ACCESS Permission denied CS_ERR_LIBRARY The connection failed CS_ERR_INTERRUPT System call inturrupted by a signal CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported CS_ERR_MESSAGE_ERROR Incorrect auth message received CS_ERR_NO_MEMORY Not enough memory to completed the requested task corosync Man Page 2004-08-31 CPG_FD_GET(3)

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CPG_DISPATCH(3) 				    Corosync Cluster Engine Programmer's Manual 				   CPG_DISPATCH(3)

NAME
cpg_dispatch - Dispatches callbacks from the CPG service SYNOPSIS
#include <corosync/cpg.h> int cpg_dispatch(cpg_handle_t handle, cpg_dispatch_t *dispatch_types); DESCRIPTION
The cpg_dispatch function is used to dispatch configuration changes or messages from the closed process groups API. Each application may have several connections to the CPG API. Each application uses the handle argument to uniquely identify the connec- tion. The dispatch_types argument is used to identify the type of dispatch to execute. The possible types are defined by the structure: typedef enum { CS_DISPATCH_ONE, CS_DISPATCH_ALL, CS_DISPATCH_BLOCKING } cpg_dispatch_t; The dispatch values have the following meanings: CS_DISPATCH_ONE Dispatch atleast one callback, blocking until the callback is dispatched. CS_DISPATCH_ALL Dispatch all waiting callbacks without blocking to wait for any callbacks. CS_DISPATCH_BLOCKING Dispatch all callbacks, blocking indefinitely. This is used in a threaded program where a thread is created, and then cpg_dis- patch() is called immediately from the created thread to execute callbacks. CS_DISPATCH_ONE_NONBLOCKING Dispatch at most one callback. If there is no pending callback, CS_ERR_TRY_AGAIN is returned. RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is returned. ERRORS
The errors are undocumented. SEE ALSO
cpg_overview(8), cpg_initialize(3), cpg_finalize(3), cpg_fd_get(3), cpg_dispatch(3), cpg_join(3), cpg_leave(3), cpg_mcast_joined(3), cpg_membership_get(3) cpg_zcb_alloc(3) cpg_zcb_free(3) cpg_zcb_mcast_joined(3) cpg_context_get(3) cpg_context_set(3) cpg_local_get(3) CS_ERR_TRY_AGAIN Resource temporarily unavailable CS_ERR_INVALID_PARAM Invalid argument CS_ERR_ACCESS Permission denied CS_ERR_LIBRARY The connection failed CS_ERR_INTERRUPT System call inturrupted by a signal CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported CS_ERR_MESSAGE_ERROR Incorrect auth message received CS_ERR_NO_MEMORY Not enough memory to completed the requested task corosync Man Page 2004-08-31 CPG_DISPATCH(3)
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