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34 .TH EVS_MCAST_JOINED 3 3004-08-31 "openais Man Page" "Openais Programmer's Manual"
36 evs_join \- Multicasts to all groups joined to an handle
38 .B #include <sys/uio.h>
39 .B #include <openais/evs.h>
41 .BI "int evs_mcast_joined(evs_handle_t " handle ", evs_guraantee_t " guarantee ", struct iovec *" iovec ", int " iov_len ");
45 function is multicast a message to all the groups that have been joined with the
47 function for the argument
49 Messages that are sent to any of the groups joined to the parameter
51 will be delivered to all processors in the system.
55 requests a delivery guarantee for the message to be sent. The evs_guarantee_t type is
63 EVS_TYPE_UNORDERED, /* not implemented */
64 EVS_TYPE_FIFO, /* same as agreed */
65 EVS_TYPE_AGREED, /* implemented */
66 EVS_TYPE_SAFE /* not implemented */
74 The meanings of the evs_gaurantee_t typedef are:
76 .B EVS_GUARANTEE_UNORDERED
77 Messages are guaranteed to be delivered, but with no particular order. This
78 mode is unimplemented in the EVS library.
81 Messages are guaranteed to be delivered in first sent first delivery order
82 from one one. In fact, this guarantee is actually the AGREED guarantee.
84 .B EVS_GUARANTEE_AGREED
85 All processors must agree on the order of delivery. If a message is sent
86 from two or more processors at about the same time, the delivery will occur
87 in the same order to all processors.
90 All processors must agree on the order of delivery. Further all processors
91 must have a copy of the message before any delivery takes place. This mode is
92 unimplemented in the EVS library.
96 argument describes the scatter/gather list which is used to transmit a message. This
97 is a standard socket structure described by:
105 void *iov_base; /* Pointer to data. */
106 size_t iov_len; /* Length of data. */
116 argument describes the number of entires in the
121 This call returns the EVS_OK value if successful, otherwise an error is returned.
124 The errors are undocumented.
126 .BR evs_overview (8),
127 .BR evs_initialize (3),
128 .BR evs_finalize (3),
130 .BR evs_dispatch (3),
133 .BR evs_mcast_groups (3),
134 .BR evs_mmembership_get (3)