mb_send
mb_send
SYNOPSIS
int mb_send( int socket, char *app_name, int msg_type, int msg_id, int msg_len, u_char *msg )
DESCRIPTION
mb_send sends msg_len bytes of msg to another process registered as app_name.
socket is a connector returned by a previous call to mb_bind.
msg_id is a request number which can be used to uniquely identify the reply.
msg_type can be MB_ONEWAY, MB_TWOWAY or MB_MULTIWAY. Include mb.h to define these constants.
| MB_ONEWAY | '1' | Sends msg to a process registered as app_name. Asks for no reply. |
| MB_TWOWAY | '2' | Sends msg to a process registered as app_name. Asks for a reply. |
| MB_MULTIWAY | 'M' | Broadcasts msg to all processes registered as app_name. Asks for no reply. |
mb_send returns 0 if msg could be written to socket or -1 if an error occurred.
If msg_type is MB_ONEWAY or MB_MULTIWAY, no reply is expected from the process or the processes registered as app_name. If msg_type is MB_TWOWAY, the process registered as app_name is expected to return a reply message.
If no process is registered in the domain app_name, the bus sends a MB_NOBODY message to the sender. If a reply is expected and the receiver doesn't reply after a certain delay, 60 seconds in the standard configuration, the bus sends a MB_TIMEOUT to the sender.
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