lib/tsocket/tsocket_internal.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher 2009
   5
   6      ** NOTE! The following LGPL license applies to the tevent
   7      ** library. This does NOT imply that all of Samba is released
   8      ** under the LGPL
   9
  10    This library is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU Lesser General Public
  12    License as published by the Free Software Foundation; either
  13    version 3 of the License, or (at your option) any later version.
  14
  15    This library is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public
  21    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #ifndef _TSOCKET_INTERNAL_H
  25 #define _TSOCKET_INTERNAL_H
  26
  27 #include <unistd.h>
  28 #include <sys/uio.h>
  29
  30 struct tsocket_address_ops {
  31         const char *name;
  32
  33         char *(*string)(const struct tsocket_address *addr,
  34                         TALLOC_CTX *mem_ctx);
  35
  36         struct tsocket_address *(*copy)(const struct tsocket_address *addr,
  37                                         TALLOC_CTX *mem_ctx,
  38                                         const char *location);
  39 };
  40
  41 struct tsocket_address {
  42         const char *location;
  43         const struct tsocket_address_ops *ops;
  44
  45         void *private_data;
  46 };
  47
  48 struct tsocket_address *_tsocket_address_create(TALLOC_CTX *mem_ctx,
  49                                         const struct tsocket_address_ops *ops,
  50                                         void *pstate,
  51                                         size_t psize,
  52                                         const char *type,
  53                                         const char *location);
  54 #define tsocket_address_create(mem_ctx, ops, state, type, location) \
  55         _tsocket_address_create(mem_ctx, ops, state, sizeof(type), \
  56                                 #type, location)
  57
  58 struct tdgram_context_ops {
  59         const char *name;
  60
  61         struct tevent_req *(*recvfrom_send)(TALLOC_CTX *mem_ctx,
  62                                             struct tevent_context *ev,
  63                                             struct tdgram_context *dgram);
  64         ssize_t (*recvfrom_recv)(struct tevent_req *req,
  65                                  int *perrno,
  66                                  TALLOC_CTX *mem_ctx,
  67                                  uint8_t **buf,
  68                                  struct tsocket_address **src);
  69
  70         struct tevent_req *(*sendto_send)(TALLOC_CTX *mem_ctx,
  71                                           struct tevent_context *ev,
  72                                           struct tdgram_context *dgram,
  73                                           const uint8_t *buf, size_t len,
  74                                           const struct tsocket_address *dst);
  75         ssize_t (*sendto_recv)(struct tevent_req *req,
  76                                int *perrno);
  77
  78         struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
  79                                               struct tevent_context *ev,
  80                                               struct tdgram_context *dgram);
  81         int (*disconnect_recv)(struct tevent_req *req,
  82                                int *perrno);
  83 };
  84
  85 struct tdgram_context *_tdgram_context_create(TALLOC_CTX *mem_ctx,
  86                                         const struct tdgram_context_ops *ops,
  87                                         void *pstate,
  88                                         size_t psize,
  89                                         const char *type,
  90                                         const char *location);
  91 #define tdgram_context_create(mem_ctx, ops, state, type, location) \
  92         _tdgram_context_create(mem_ctx, ops, state, sizeof(type), \
  93                                 #type, location)
  94
  95 void *_tdgram_context_data(struct tdgram_context *dgram);
  96 #define tdgram_context_data(_req, _type) \
  97         talloc_get_type_abort(_tdgram_context_data(_req), _type)
  98
  99 struct tstream_context_ops {
 100         const char *name;
 101
 102         ssize_t (*pending_bytes)(struct tstream_context *stream);
 103
 104         struct tevent_req *(*readv_send)(TALLOC_CTX *mem_ctx,
 105                                          struct tevent_context *ev,
 106                                          struct tstream_context *stream,
 107                                          struct iovec *vector,
 108                                          size_t count);
 109         int (*readv_recv)(struct tevent_req *req,
 110                           int *perrno);
 111
 112         struct tevent_req *(*writev_send)(TALLOC_CTX *mem_ctx,
 113                                           struct tevent_context *ev,
 114                                           struct tstream_context *stream,
 115                                           const struct iovec *vector,
 116                                           size_t count);
 117         int (*writev_recv)(struct tevent_req *req,
 118                            int *perrno);
 119
 120         struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
 121                                               struct tevent_context *ev,
 122                                               struct tstream_context *stream);
 123         int (*disconnect_recv)(struct tevent_req *req,
 124                                int *perrno);
 125 };
 126
 127 struct tstream_context *_tstream_context_create(TALLOC_CTX *mem_ctx,
 128                                         const struct tstream_context_ops *ops,
 129                                         void *pstate,
 130                                         size_t psize,
 131                                         const char *type,
 132                                         const char *location);
 133 #define tstream_context_create(mem_ctx, ops, state, type, location) \
 134         _tstream_context_create(mem_ctx, ops, state, sizeof(type), \
 135                                 #type, location)
 136
 137 void *_tstream_context_data(struct tstream_context *stream);
 138 #define tstream_context_data(_req, _type) \
 139         talloc_get_type_abort(_tstream_context_data(_req), _type)
 140
 141 int tsocket_simple_int_recv(struct tevent_req *req, int *perrno);
 142
 143 #endif /* _TSOCKET_H */
 144