| /* |
| Copyright (c) 2012-2013 Martin Sustrik All rights reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), |
| to deal in the Software without restriction, including without limitation |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| and/or sell copies of the Software, and to permit persons to whom |
| the Software is furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| IN THE SOFTWARE. |
| */ |
| |
| #ifndef NN_REQ_INCLUDED |
| #define NN_REQ_INCLUDED |
| |
| #include "xreq.h" |
| #include "task.h" |
| |
| #include "../../protocol.h" |
| #include "../../aio/fsm.h" |
| |
| struct nn_req { |
| |
| /* The base class. Raw REQ socket. */ |
| struct nn_xreq xreq; |
| |
| /* The state machine. */ |
| struct nn_fsm fsm; |
| int state; |
| |
| /* Last request ID assigned. */ |
| uint32_t lastid; |
| |
| /* Protocol-specific socket options. */ |
| int resend_ivl; |
| |
| /* The request being processed. */ |
| struct nn_task task; |
| }; |
| |
| extern struct nn_socktype *nn_req_socktype; |
| |
| /* Some users may want to extend the REQ protocol similar to how REQ extends XREQ. |
| Expose these methods to improve extensibility. */ |
| void nn_req_init (struct nn_req *self, |
| const struct nn_sockbase_vfptr *vfptr, void *hint); |
| void nn_req_term (struct nn_req *self); |
| int nn_req_inprogress (struct nn_req *self); |
| void nn_req_handler (struct nn_fsm *self, int src, int type, |
| void *srcptr); |
| void nn_req_shutdown (struct nn_fsm *self, int src, int type, |
| void *srcptr); |
| void nn_req_action_send (struct nn_req *self, int allow_delay); |
| |
| /* Implementation of nn_sockbase's virtual functions. */ |
| void nn_req_stop (struct nn_sockbase *self); |
| void nn_req_destroy (struct nn_sockbase *self); |
| void nn_req_in (struct nn_sockbase *self, struct nn_pipe *pipe); |
| void nn_req_out (struct nn_sockbase *self, struct nn_pipe *pipe); |
| int nn_req_events (struct nn_sockbase *self); |
| int nn_req_csend (struct nn_sockbase *self, struct nn_msg *msg); |
| void nn_req_rm (struct nn_sockbase *self, struct nn_pipe *pipe); |
| int nn_req_crecv (struct nn_sockbase *self, struct nn_msg *msg); |
| int nn_req_setopt (struct nn_sockbase *self, int level, int option, |
| const void *optval, size_t optvallen); |
| int nn_req_getopt (struct nn_sockbase *self, int level, int option, |
| void *optval, size_t *optvallen); |
| int nn_req_csend (struct nn_sockbase *self, struct nn_msg *msg); |
| int nn_req_crecv (struct nn_sockbase *self, struct nn_msg *msg); |
| |
| #endif |