Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
Benny Prijono | 844653c | 2008-12-23 17:27:53 +0000 | [diff] [blame] | 3 | * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/activesock.h> |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 21 | #include <pj/compat/socket.h> |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 22 | #include <pj/assert.h> |
| 23 | #include <pj/errno.h> |
| 24 | #include <pj/pool.h> |
| 25 | #include <pj/sock.h> |
| 26 | #include <pj/string.h> |
| 27 | |
| 28 | #define PJ_ACTIVESOCK_MAX_LOOP 50 |
| 29 | |
| 30 | |
| 31 | enum read_type |
| 32 | { |
| 33 | TYPE_NONE, |
| 34 | TYPE_RECV, |
| 35 | TYPE_RECV_FROM |
| 36 | }; |
| 37 | |
| 38 | struct read_op |
| 39 | { |
| 40 | pj_ioqueue_op_key_t op_key; |
| 41 | pj_uint8_t *pkt; |
| 42 | unsigned max_size; |
| 43 | pj_size_t size; |
| 44 | pj_sockaddr src_addr; |
| 45 | int src_addr_len; |
| 46 | }; |
| 47 | |
| 48 | struct accept_op |
| 49 | { |
| 50 | pj_ioqueue_op_key_t op_key; |
| 51 | pj_sock_t new_sock; |
| 52 | pj_sockaddr rem_addr; |
| 53 | int rem_addr_len; |
| 54 | }; |
| 55 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 56 | struct send_data |
| 57 | { |
| 58 | pj_uint8_t *data; |
| 59 | pj_ssize_t len; |
| 60 | pj_ssize_t sent; |
| 61 | unsigned flags; |
| 62 | }; |
| 63 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 64 | struct pj_activesock_t |
| 65 | { |
| 66 | pj_ioqueue_key_t *key; |
| 67 | pj_bool_t stream_oriented; |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 68 | pj_bool_t whole_data; |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 69 | pj_ioqueue_t *ioqueue; |
| 70 | void *user_data; |
| 71 | unsigned async_count; |
| 72 | unsigned max_loop; |
| 73 | pj_activesock_cb cb; |
| 74 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 75 | struct send_data send_data; |
| 76 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 77 | struct read_op *read_op; |
| 78 | pj_uint32_t read_flags; |
| 79 | enum read_type read_type; |
| 80 | |
| 81 | struct accept_op *accept_op; |
| 82 | }; |
| 83 | |
| 84 | |
| 85 | static void ioqueue_on_read_complete(pj_ioqueue_key_t *key, |
| 86 | pj_ioqueue_op_key_t *op_key, |
| 87 | pj_ssize_t bytes_read); |
| 88 | static void ioqueue_on_write_complete(pj_ioqueue_key_t *key, |
| 89 | pj_ioqueue_op_key_t *op_key, |
| 90 | pj_ssize_t bytes_sent); |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 91 | #if PJ_HAS_TCP |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 92 | static void ioqueue_on_accept_complete(pj_ioqueue_key_t *key, |
| 93 | pj_ioqueue_op_key_t *op_key, |
| 94 | pj_sock_t sock, |
| 95 | pj_status_t status); |
| 96 | static void ioqueue_on_connect_complete(pj_ioqueue_key_t *key, |
| 97 | pj_status_t status); |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 98 | #endif |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 99 | |
| 100 | PJ_DEF(void) pj_activesock_cfg_default(pj_activesock_cfg *cfg) |
| 101 | { |
| 102 | pj_bzero(cfg, sizeof(*cfg)); |
| 103 | cfg->async_cnt = 1; |
| 104 | cfg->concurrency = -1; |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 105 | cfg->whole_data = PJ_TRUE; |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | |
| 109 | PJ_DEF(pj_status_t) pj_activesock_create( pj_pool_t *pool, |
| 110 | pj_sock_t sock, |
| 111 | int sock_type, |
| 112 | const pj_activesock_cfg *opt, |
| 113 | pj_ioqueue_t *ioqueue, |
| 114 | const pj_activesock_cb *cb, |
Benny Prijono | ea8e436 | 2008-06-06 14:12:23 +0000 | [diff] [blame] | 115 | void *user_data, |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 116 | pj_activesock_t **p_asock) |
| 117 | { |
| 118 | pj_activesock_t *asock; |
| 119 | pj_ioqueue_callback ioq_cb; |
| 120 | pj_status_t status; |
| 121 | |
| 122 | PJ_ASSERT_RETURN(pool && ioqueue && cb && p_asock, PJ_EINVAL); |
| 123 | PJ_ASSERT_RETURN(sock!=0 && sock!=PJ_INVALID_SOCKET, PJ_EINVAL); |
| 124 | PJ_ASSERT_RETURN(sock_type==pj_SOCK_STREAM() || |
| 125 | sock_type==pj_SOCK_DGRAM(), PJ_EINVAL); |
| 126 | PJ_ASSERT_RETURN(!opt || opt->async_cnt >= 1, PJ_EINVAL); |
| 127 | |
| 128 | asock = PJ_POOL_ZALLOC_T(pool, pj_activesock_t); |
| 129 | asock->ioqueue = ioqueue; |
| 130 | asock->stream_oriented = (sock_type == pj_SOCK_STREAM()); |
| 131 | asock->async_count = (opt? opt->async_cnt : 1); |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 132 | asock->whole_data = (opt? opt->whole_data : 1); |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 133 | asock->max_loop = PJ_ACTIVESOCK_MAX_LOOP; |
Benny Prijono | ea8e436 | 2008-06-06 14:12:23 +0000 | [diff] [blame] | 134 | asock->user_data = user_data; |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 135 | pj_memcpy(&asock->cb, cb, sizeof(*cb)); |
| 136 | |
| 137 | pj_bzero(&ioq_cb, sizeof(ioq_cb)); |
| 138 | ioq_cb.on_read_complete = &ioqueue_on_read_complete; |
| 139 | ioq_cb.on_write_complete = &ioqueue_on_write_complete; |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 140 | #if PJ_HAS_TCP |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 141 | ioq_cb.on_connect_complete = &ioqueue_on_connect_complete; |
| 142 | ioq_cb.on_accept_complete = &ioqueue_on_accept_complete; |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 143 | #endif |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 144 | |
| 145 | status = pj_ioqueue_register_sock(pool, ioqueue, sock, asock, |
| 146 | &ioq_cb, &asock->key); |
| 147 | if (status != PJ_SUCCESS) { |
| 148 | pj_activesock_close(asock); |
| 149 | return status; |
| 150 | } |
| 151 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 152 | if (asock->whole_data) { |
| 153 | /* Must disable concurrency otherwise there is a race condition */ |
| 154 | pj_ioqueue_set_concurrency(asock->key, 0); |
| 155 | } else if (opt && opt->concurrency >= 0) { |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 156 | pj_ioqueue_set_concurrency(asock->key, opt->concurrency); |
| 157 | } |
| 158 | |
| 159 | *p_asock = asock; |
| 160 | return PJ_SUCCESS; |
| 161 | } |
| 162 | |
| 163 | |
| 164 | PJ_DEF(pj_status_t) pj_activesock_create_udp( pj_pool_t *pool, |
| 165 | const pj_sockaddr *addr, |
| 166 | const pj_activesock_cfg *opt, |
| 167 | pj_ioqueue_t *ioqueue, |
| 168 | const pj_activesock_cb *cb, |
Benny Prijono | ea8e436 | 2008-06-06 14:12:23 +0000 | [diff] [blame] | 169 | void *user_data, |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 170 | pj_activesock_t **p_asock, |
| 171 | pj_sockaddr *bound_addr) |
| 172 | { |
| 173 | pj_sock_t sock_fd; |
| 174 | pj_sockaddr default_addr; |
| 175 | pj_status_t status; |
| 176 | |
| 177 | if (addr == NULL) { |
| 178 | pj_sockaddr_init(pj_AF_INET(), &default_addr, NULL, 0); |
| 179 | addr = &default_addr; |
| 180 | } |
| 181 | |
| 182 | status = pj_sock_socket(addr->addr.sa_family, pj_SOCK_DGRAM(), 0, |
| 183 | &sock_fd); |
| 184 | if (status != PJ_SUCCESS) { |
| 185 | return status; |
| 186 | } |
| 187 | |
| 188 | status = pj_sock_bind(sock_fd, addr, pj_sockaddr_get_len(addr)); |
| 189 | if (status != PJ_SUCCESS) { |
| 190 | pj_sock_close(sock_fd); |
| 191 | return status; |
| 192 | } |
| 193 | |
| 194 | status = pj_activesock_create(pool, sock_fd, pj_SOCK_DGRAM(), opt, |
Benny Prijono | ea8e436 | 2008-06-06 14:12:23 +0000 | [diff] [blame] | 195 | ioqueue, cb, user_data, p_asock); |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 196 | if (status != PJ_SUCCESS) { |
| 197 | pj_sock_close(sock_fd); |
| 198 | return status; |
| 199 | } |
| 200 | |
| 201 | if (bound_addr) { |
| 202 | int addr_len = sizeof(*bound_addr); |
| 203 | status = pj_sock_getsockname(sock_fd, bound_addr, &addr_len); |
| 204 | if (status != PJ_SUCCESS) { |
| 205 | pj_activesock_close(*p_asock); |
| 206 | return status; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | return PJ_SUCCESS; |
| 211 | } |
| 212 | |
| 213 | |
| 214 | PJ_DEF(pj_status_t) pj_activesock_close(pj_activesock_t *asock) |
| 215 | { |
| 216 | PJ_ASSERT_RETURN(asock, PJ_EINVAL); |
| 217 | if (asock->key) { |
| 218 | pj_ioqueue_unregister(asock->key); |
| 219 | asock->key = NULL; |
| 220 | } |
| 221 | return PJ_SUCCESS; |
| 222 | } |
| 223 | |
| 224 | |
| 225 | PJ_DEF(pj_status_t) pj_activesock_set_user_data( pj_activesock_t *asock, |
| 226 | void *user_data) |
| 227 | { |
| 228 | PJ_ASSERT_RETURN(asock, PJ_EINVAL); |
| 229 | asock->user_data = user_data; |
| 230 | return PJ_SUCCESS; |
| 231 | } |
| 232 | |
| 233 | |
| 234 | PJ_DEF(void*) pj_activesock_get_user_data(pj_activesock_t *asock) |
| 235 | { |
| 236 | PJ_ASSERT_RETURN(asock, NULL); |
| 237 | return asock->user_data; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | PJ_DEF(pj_status_t) pj_activesock_start_read(pj_activesock_t *asock, |
| 242 | pj_pool_t *pool, |
| 243 | unsigned buff_size, |
| 244 | pj_uint32_t flags) |
| 245 | { |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 246 | void **readbuf; |
| 247 | unsigned i; |
| 248 | |
| 249 | PJ_ASSERT_RETURN(asock && pool && buff_size, PJ_EINVAL); |
| 250 | |
| 251 | readbuf = (void**) pj_pool_calloc(pool, asock->async_count, |
| 252 | sizeof(void*)); |
| 253 | |
| 254 | for (i=0; i<asock->async_count; ++i) { |
| 255 | readbuf[i] = pj_pool_alloc(pool, buff_size); |
| 256 | } |
| 257 | |
| 258 | return pj_activesock_start_read2(asock, pool, buff_size, readbuf, flags); |
| 259 | } |
| 260 | |
| 261 | |
| 262 | PJ_DEF(pj_status_t) pj_activesock_start_read2( pj_activesock_t *asock, |
| 263 | pj_pool_t *pool, |
| 264 | unsigned buff_size, |
| 265 | void *readbuf[], |
| 266 | pj_uint32_t flags) |
| 267 | { |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 268 | unsigned i; |
| 269 | pj_status_t status; |
| 270 | |
| 271 | PJ_ASSERT_RETURN(asock && pool && buff_size, PJ_EINVAL); |
| 272 | PJ_ASSERT_RETURN(asock->read_type == TYPE_NONE, PJ_EINVALIDOP); |
| 273 | PJ_ASSERT_RETURN(asock->read_op == NULL, PJ_EINVALIDOP); |
| 274 | |
| 275 | asock->read_op = (struct read_op*) |
| 276 | pj_pool_calloc(pool, asock->async_count, |
| 277 | sizeof(struct read_op)); |
| 278 | asock->read_type = TYPE_RECV; |
| 279 | asock->read_flags = flags; |
| 280 | |
| 281 | for (i=0; i<asock->async_count; ++i) { |
| 282 | struct read_op *r = &asock->read_op[i]; |
| 283 | pj_ssize_t size_to_read; |
| 284 | |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 285 | r->pkt = (pj_uint8_t*)readbuf[i]; |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 286 | r->max_size = size_to_read = buff_size; |
| 287 | |
| 288 | status = pj_ioqueue_recv(asock->key, &r->op_key, r->pkt, &size_to_read, |
| 289 | PJ_IOQUEUE_ALWAYS_ASYNC | flags); |
| 290 | PJ_ASSERT_RETURN(status != PJ_SUCCESS, PJ_EBUG); |
| 291 | |
| 292 | if (status != PJ_EPENDING) |
| 293 | return status; |
| 294 | } |
| 295 | |
| 296 | return PJ_SUCCESS; |
| 297 | } |
| 298 | |
| 299 | |
| 300 | PJ_DEF(pj_status_t) pj_activesock_start_recvfrom(pj_activesock_t *asock, |
| 301 | pj_pool_t *pool, |
| 302 | unsigned buff_size, |
| 303 | pj_uint32_t flags) |
| 304 | { |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 305 | void **readbuf; |
| 306 | unsigned i; |
| 307 | |
| 308 | PJ_ASSERT_RETURN(asock && pool && buff_size, PJ_EINVAL); |
| 309 | |
| 310 | readbuf = (void**) pj_pool_calloc(pool, asock->async_count, |
| 311 | sizeof(void*)); |
| 312 | |
| 313 | for (i=0; i<asock->async_count; ++i) { |
| 314 | readbuf[i] = pj_pool_alloc(pool, buff_size); |
| 315 | } |
| 316 | |
| 317 | return pj_activesock_start_recvfrom2(asock, pool, buff_size, |
| 318 | readbuf, flags); |
| 319 | } |
| 320 | |
| 321 | |
| 322 | PJ_DEF(pj_status_t) pj_activesock_start_recvfrom2( pj_activesock_t *asock, |
| 323 | pj_pool_t *pool, |
| 324 | unsigned buff_size, |
| 325 | void *readbuf[], |
| 326 | pj_uint32_t flags) |
| 327 | { |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 328 | unsigned i; |
| 329 | pj_status_t status; |
| 330 | |
| 331 | PJ_ASSERT_RETURN(asock && pool && buff_size, PJ_EINVAL); |
| 332 | PJ_ASSERT_RETURN(asock->read_type == TYPE_NONE, PJ_EINVALIDOP); |
| 333 | |
| 334 | asock->read_op = (struct read_op*) |
| 335 | pj_pool_calloc(pool, asock->async_count, |
| 336 | sizeof(struct read_op)); |
| 337 | asock->read_type = TYPE_RECV_FROM; |
| 338 | asock->read_flags = flags; |
| 339 | |
| 340 | for (i=0; i<asock->async_count; ++i) { |
| 341 | struct read_op *r = &asock->read_op[i]; |
| 342 | pj_ssize_t size_to_read; |
| 343 | |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 344 | r->pkt = (pj_uint8_t*) readbuf[i]; |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 345 | r->max_size = size_to_read = buff_size; |
| 346 | r->src_addr_len = sizeof(r->src_addr); |
| 347 | |
| 348 | status = pj_ioqueue_recvfrom(asock->key, &r->op_key, r->pkt, |
| 349 | &size_to_read, |
| 350 | PJ_IOQUEUE_ALWAYS_ASYNC | flags, |
| 351 | &r->src_addr, &r->src_addr_len); |
| 352 | PJ_ASSERT_RETURN(status != PJ_SUCCESS, PJ_EBUG); |
| 353 | |
| 354 | if (status != PJ_EPENDING) |
| 355 | return status; |
| 356 | } |
| 357 | |
| 358 | return PJ_SUCCESS; |
| 359 | } |
| 360 | |
| 361 | |
| 362 | static void ioqueue_on_read_complete(pj_ioqueue_key_t *key, |
| 363 | pj_ioqueue_op_key_t *op_key, |
| 364 | pj_ssize_t bytes_read) |
| 365 | { |
| 366 | pj_activesock_t *asock; |
| 367 | struct read_op *r = (struct read_op*)op_key; |
| 368 | unsigned loop = 0; |
| 369 | pj_status_t status; |
| 370 | |
| 371 | asock = (pj_activesock_t*) pj_ioqueue_get_user_data(key); |
| 372 | |
| 373 | do { |
| 374 | unsigned flags; |
| 375 | |
| 376 | if (bytes_read > 0) { |
| 377 | /* |
| 378 | * We've got new data. |
| 379 | */ |
| 380 | pj_size_t remainder; |
| 381 | pj_bool_t ret; |
| 382 | |
| 383 | /* Append this new data to existing data. If socket is stream |
| 384 | * oriented, user might have left some data in the buffer. |
| 385 | * Otherwise if socket is datagram there will be nothing in |
| 386 | * existing packet hence the packet will contain only the new |
| 387 | * packet. |
| 388 | */ |
| 389 | r->size += bytes_read; |
| 390 | |
| 391 | /* Set default remainder to zero */ |
| 392 | remainder = 0; |
| 393 | |
| 394 | /* And return value to TRUE */ |
| 395 | ret = PJ_TRUE; |
| 396 | |
| 397 | /* Notify callback */ |
| 398 | if (asock->read_type == TYPE_RECV && asock->cb.on_data_read) { |
| 399 | ret = (*asock->cb.on_data_read)(asock, r->pkt, r->size, |
| 400 | PJ_SUCCESS, &remainder); |
| 401 | } else if (asock->read_type == TYPE_RECV_FROM && |
| 402 | asock->cb.on_data_recvfrom) |
| 403 | { |
| 404 | ret = (*asock->cb.on_data_recvfrom)(asock, r->pkt, r->size, |
| 405 | &r->src_addr, |
| 406 | r->src_addr_len, |
| 407 | PJ_SUCCESS); |
| 408 | } |
| 409 | |
| 410 | /* If callback returns false, we have been destroyed! */ |
| 411 | if (!ret) |
| 412 | return; |
| 413 | |
| 414 | /* Only stream oriented socket may leave data in the packet */ |
| 415 | if (asock->stream_oriented) { |
| 416 | r->size = remainder; |
| 417 | } else { |
| 418 | r->size = 0; |
| 419 | } |
| 420 | |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 421 | } else if (bytes_read <= 0 && |
| 422 | -bytes_read != PJ_STATUS_FROM_OS(OSERR_EWOULDBLOCK) && |
| 423 | -bytes_read != PJ_STATUS_FROM_OS(OSERR_EINPROGRESS) && |
Benny Prijono | 3eb5963 | 2008-08-26 19:27:23 +0000 | [diff] [blame] | 424 | (asock->stream_oriented || |
| 425 | -bytes_read != PJ_STATUS_FROM_OS(OSERR_ECONNRESET))) |
Benny Prijono | bd344ff | 2008-08-04 09:59:02 +0000 | [diff] [blame] | 426 | { |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 427 | pj_size_t remainder; |
| 428 | pj_bool_t ret; |
| 429 | |
| 430 | if (bytes_read == 0) { |
| 431 | /* For stream/connection oriented socket, this means the |
| 432 | * connection has been closed. For datagram sockets, it means |
| 433 | * we've received datagram with zero length. |
| 434 | */ |
| 435 | if (asock->stream_oriented) |
| 436 | status = PJ_EEOF; |
| 437 | else |
| 438 | status = PJ_SUCCESS; |
| 439 | } else { |
| 440 | /* This means we've got an error. If this is stream/connection |
| 441 | * oriented, it means connection has been closed. For datagram |
| 442 | * sockets, it means we've got some error (e.g. EWOULDBLOCK). |
| 443 | */ |
| 444 | status = -bytes_read; |
| 445 | } |
| 446 | |
| 447 | /* Set default remainder to zero */ |
| 448 | remainder = 0; |
| 449 | |
| 450 | /* And return value to TRUE */ |
| 451 | ret = PJ_TRUE; |
| 452 | |
| 453 | /* Notify callback */ |
| 454 | if (asock->read_type == TYPE_RECV && asock->cb.on_data_read) { |
| 455 | /* For connection oriented socket, we still need to report |
| 456 | * the remainder data (if any) to the user to let user do |
| 457 | * processing with the remainder data before it closes the |
| 458 | * connection. |
| 459 | * If there is no remainder data, set the packet to NULL. |
| 460 | */ |
Nanang Izzuddin | a326fbf | 2009-10-26 14:09:09 +0000 | [diff] [blame] | 461 | |
| 462 | /* Shouldn't set the packet to NULL, as there may be active |
| 463 | * socket user, such as SSL socket, that needs to have access |
| 464 | * to the read buffer packet. |
| 465 | */ |
| 466 | //ret = (*asock->cb.on_data_read)(asock, (r->size? r->pkt:NULL), |
| 467 | // r->size, status, &remainder); |
| 468 | ret = (*asock->cb.on_data_read)(asock, r->pkt, r->size, |
| 469 | status, &remainder); |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 470 | |
| 471 | } else if (asock->read_type == TYPE_RECV_FROM && |
| 472 | asock->cb.on_data_recvfrom) |
| 473 | { |
| 474 | /* This would always be datagram oriented hence there's |
| 475 | * nothing in the packet. We can't be sure if there will be |
| 476 | * anything useful in the source_addr, so just put NULL |
| 477 | * there too. |
| 478 | */ |
Benny Prijono | 758decb | 2008-08-26 17:10:51 +0000 | [diff] [blame] | 479 | /* In some scenarios, status may be PJ_SUCCESS. The upper |
| 480 | * layer application may not expect the callback to be called |
| 481 | * with successful status and NULL data, so lets not call the |
| 482 | * callback if the status is PJ_SUCCESS. |
| 483 | */ |
| 484 | if (status != PJ_SUCCESS ) { |
| 485 | ret = (*asock->cb.on_data_recvfrom)(asock, NULL, 0, |
| 486 | NULL, 0, status); |
| 487 | } |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 488 | } |
| 489 | |
| 490 | /* If callback returns false, we have been destroyed! */ |
| 491 | if (!ret) |
| 492 | return; |
| 493 | |
| 494 | /* Only stream oriented socket may leave data in the packet */ |
| 495 | if (asock->stream_oriented) { |
| 496 | r->size = remainder; |
| 497 | } else { |
| 498 | r->size = 0; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | /* Read next data. We limit ourselves to processing max_loop immediate |
| 503 | * data, so when the loop counter has exceeded this value, force the |
| 504 | * read()/recvfrom() to return pending operation to allow the program |
| 505 | * to do other jobs. |
| 506 | */ |
| 507 | bytes_read = r->max_size - r->size; |
| 508 | flags = asock->read_flags; |
| 509 | if (++loop >= asock->max_loop) |
| 510 | flags |= PJ_IOQUEUE_ALWAYS_ASYNC; |
| 511 | |
| 512 | if (asock->read_type == TYPE_RECV) { |
| 513 | status = pj_ioqueue_recv(key, op_key, r->pkt + r->size, |
| 514 | &bytes_read, flags); |
| 515 | } else { |
| 516 | r->src_addr_len = sizeof(r->src_addr); |
| 517 | status = pj_ioqueue_recvfrom(key, op_key, r->pkt + r->size, |
| 518 | &bytes_read, flags, |
| 519 | &r->src_addr, &r->src_addr_len); |
| 520 | } |
| 521 | |
Benny Prijono | 7f6ca73 | 2008-08-26 20:47:53 +0000 | [diff] [blame] | 522 | if (status == PJ_SUCCESS) { |
| 523 | /* Immediate data */ |
| 524 | ; |
| 525 | } else if (status != PJ_EPENDING && status != PJ_ECANCELLED) { |
| 526 | /* Error */ |
Benny Prijono | 758decb | 2008-08-26 17:10:51 +0000 | [diff] [blame] | 527 | bytes_read = -status; |
| 528 | } else { |
| 529 | break; |
| 530 | } |
| 531 | } while (1); |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 532 | |
| 533 | } |
| 534 | |
| 535 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 536 | static pj_status_t send_remaining(pj_activesock_t *asock, |
| 537 | pj_ioqueue_op_key_t *send_key) |
| 538 | { |
| 539 | struct send_data *sd = (struct send_data*)send_key->activesock_data; |
| 540 | pj_status_t status; |
| 541 | |
| 542 | do { |
| 543 | pj_ssize_t size; |
| 544 | |
| 545 | size = sd->len - sd->sent; |
| 546 | status = pj_ioqueue_send(asock->key, send_key, |
| 547 | sd->data+sd->sent, &size, sd->flags); |
| 548 | if (status != PJ_SUCCESS) { |
| 549 | /* Pending or error */ |
| 550 | break; |
| 551 | } |
| 552 | |
| 553 | sd->sent += size; |
| 554 | if (sd->sent == sd->len) { |
| 555 | /* The whole data has been sent. */ |
| 556 | return PJ_SUCCESS; |
| 557 | } |
| 558 | |
| 559 | } while (sd->sent < sd->len); |
| 560 | |
| 561 | return status; |
| 562 | } |
| 563 | |
| 564 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 565 | PJ_DEF(pj_status_t) pj_activesock_send( pj_activesock_t *asock, |
| 566 | pj_ioqueue_op_key_t *send_key, |
| 567 | const void *data, |
| 568 | pj_ssize_t *size, |
| 569 | unsigned flags) |
| 570 | { |
| 571 | PJ_ASSERT_RETURN(asock && send_key && data && size, PJ_EINVAL); |
| 572 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 573 | send_key->activesock_data = NULL; |
| 574 | |
| 575 | if (asock->whole_data) { |
| 576 | pj_ssize_t whole; |
| 577 | pj_status_t status; |
| 578 | |
| 579 | whole = *size; |
| 580 | |
| 581 | status = pj_ioqueue_send(asock->key, send_key, data, size, flags); |
| 582 | if (status != PJ_SUCCESS) { |
| 583 | /* Pending or error */ |
| 584 | return status; |
| 585 | } |
| 586 | |
| 587 | if (*size == whole) { |
| 588 | /* The whole data has been sent. */ |
| 589 | return PJ_SUCCESS; |
| 590 | } |
| 591 | |
| 592 | /* Data was partially sent */ |
| 593 | asock->send_data.data = (pj_uint8_t*)data; |
| 594 | asock->send_data.len = whole; |
| 595 | asock->send_data.sent = *size; |
| 596 | asock->send_data.flags = flags; |
| 597 | send_key->activesock_data = &asock->send_data; |
| 598 | |
| 599 | /* Try again */ |
| 600 | status = send_remaining(asock, send_key); |
| 601 | if (status == PJ_SUCCESS) { |
| 602 | *size = whole; |
| 603 | } |
| 604 | return status; |
| 605 | |
| 606 | } else { |
| 607 | return pj_ioqueue_send(asock->key, send_key, data, size, flags); |
| 608 | } |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | |
| 612 | PJ_DEF(pj_status_t) pj_activesock_sendto( pj_activesock_t *asock, |
| 613 | pj_ioqueue_op_key_t *send_key, |
| 614 | const void *data, |
| 615 | pj_ssize_t *size, |
| 616 | unsigned flags, |
| 617 | const pj_sockaddr_t *addr, |
| 618 | int addr_len) |
| 619 | { |
| 620 | PJ_ASSERT_RETURN(asock && send_key && data && size && addr && addr_len, |
| 621 | PJ_EINVAL); |
| 622 | |
| 623 | return pj_ioqueue_sendto(asock->key, send_key, data, size, flags, |
| 624 | addr, addr_len); |
| 625 | } |
| 626 | |
| 627 | |
| 628 | static void ioqueue_on_write_complete(pj_ioqueue_key_t *key, |
| 629 | pj_ioqueue_op_key_t *op_key, |
| 630 | pj_ssize_t bytes_sent) |
| 631 | { |
| 632 | pj_activesock_t *asock; |
| 633 | |
| 634 | asock = (pj_activesock_t*) pj_ioqueue_get_user_data(key); |
| 635 | |
Benny Prijono | 417d605 | 2008-07-29 20:15:15 +0000 | [diff] [blame] | 636 | if (bytes_sent > 0 && op_key->activesock_data) { |
| 637 | /* whole_data is requested. Make sure we send all the data */ |
| 638 | struct send_data *sd = (struct send_data*)op_key->activesock_data; |
| 639 | |
| 640 | sd->sent += bytes_sent; |
| 641 | if (sd->sent == sd->len) { |
| 642 | /* all has been sent */ |
| 643 | bytes_sent = sd->sent; |
| 644 | op_key->activesock_data = NULL; |
| 645 | } else { |
| 646 | /* send remaining data */ |
| 647 | pj_status_t status; |
| 648 | |
| 649 | status = send_remaining(asock, op_key); |
| 650 | if (status == PJ_EPENDING) |
| 651 | return; |
| 652 | else if (status == PJ_SUCCESS) |
| 653 | bytes_sent = sd->sent; |
| 654 | else |
| 655 | bytes_sent = -status; |
| 656 | |
| 657 | op_key->activesock_data = NULL; |
| 658 | } |
| 659 | } |
| 660 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 661 | if (asock->cb.on_data_sent) { |
| 662 | pj_bool_t ret; |
| 663 | |
| 664 | ret = (*asock->cb.on_data_sent)(asock, op_key, bytes_sent); |
| 665 | |
| 666 | /* If callback returns false, we have been destroyed! */ |
| 667 | if (!ret) |
| 668 | return; |
| 669 | } |
| 670 | } |
| 671 | |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 672 | #if PJ_HAS_TCP |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 673 | PJ_DEF(pj_status_t) pj_activesock_start_accept(pj_activesock_t *asock, |
| 674 | pj_pool_t *pool) |
| 675 | { |
| 676 | unsigned i; |
| 677 | |
| 678 | PJ_ASSERT_RETURN(asock, PJ_EINVAL); |
| 679 | PJ_ASSERT_RETURN(asock->accept_op==NULL, PJ_EINVALIDOP); |
| 680 | |
| 681 | asock->accept_op = (struct accept_op*) |
| 682 | pj_pool_calloc(pool, asock->async_count, |
| 683 | sizeof(struct accept_op)); |
| 684 | for (i=0; i<asock->async_count; ++i) { |
| 685 | struct accept_op *a = &asock->accept_op[i]; |
| 686 | pj_status_t status; |
| 687 | |
| 688 | do { |
| 689 | a->new_sock = PJ_INVALID_SOCKET; |
| 690 | a->rem_addr_len = sizeof(a->rem_addr); |
| 691 | |
| 692 | status = pj_ioqueue_accept(asock->key, &a->op_key, &a->new_sock, |
| 693 | NULL, &a->rem_addr, &a->rem_addr_len); |
| 694 | if (status == PJ_SUCCESS) { |
| 695 | /* We've got immediate connection. Not sure if it's a good |
| 696 | * idea to call the callback now (probably application will |
| 697 | * not be prepared to process it), so lets just silently |
| 698 | * close the socket. |
| 699 | */ |
| 700 | pj_sock_close(a->new_sock); |
| 701 | } |
| 702 | } while (status == PJ_SUCCESS); |
| 703 | |
| 704 | if (status != PJ_EPENDING) { |
| 705 | return status; |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | return PJ_SUCCESS; |
| 710 | } |
| 711 | |
| 712 | |
| 713 | static void ioqueue_on_accept_complete(pj_ioqueue_key_t *key, |
| 714 | pj_ioqueue_op_key_t *op_key, |
| 715 | pj_sock_t new_sock, |
| 716 | pj_status_t status) |
| 717 | { |
| 718 | pj_activesock_t *asock = (pj_activesock_t*) pj_ioqueue_get_user_data(key); |
| 719 | struct accept_op *accept_op = (struct accept_op*) op_key; |
| 720 | |
Nanang Izzuddin | 7369d22 | 2009-11-03 12:58:54 +0000 | [diff] [blame] | 721 | PJ_UNUSED_ARG(new_sock); |
| 722 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 723 | do { |
| 724 | if (status==PJ_SUCCESS && asock->cb.on_accept_complete) { |
| 725 | pj_bool_t ret; |
| 726 | |
| 727 | /* Notify callback */ |
Nanang Izzuddin | 36aa1fb | 2009-11-03 12:44:11 +0000 | [diff] [blame] | 728 | ret = (*asock->cb.on_accept_complete)(asock, accept_op->new_sock, |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 729 | &accept_op->rem_addr, |
| 730 | accept_op->rem_addr_len); |
| 731 | |
| 732 | /* If callback returns false, we have been destroyed! */ |
| 733 | if (!ret) |
| 734 | return; |
| 735 | |
| 736 | } else if (status==PJ_SUCCESS) { |
| 737 | /* Application doesn't handle the new socket, we need to |
| 738 | * close it to avoid resource leak. |
| 739 | */ |
| 740 | pj_sock_close(accept_op->new_sock); |
| 741 | } |
| 742 | |
| 743 | /* Prepare next accept() */ |
| 744 | accept_op->new_sock = PJ_INVALID_SOCKET; |
| 745 | accept_op->rem_addr_len = sizeof(accept_op->rem_addr); |
| 746 | |
| 747 | status = pj_ioqueue_accept(asock->key, op_key, &accept_op->new_sock, |
| 748 | NULL, &accept_op->rem_addr, |
| 749 | &accept_op->rem_addr_len); |
| 750 | |
| 751 | } while (status != PJ_EPENDING && status != PJ_ECANCELLED); |
| 752 | } |
| 753 | |
| 754 | |
| 755 | PJ_DEF(pj_status_t) pj_activesock_start_connect( pj_activesock_t *asock, |
| 756 | pj_pool_t *pool, |
| 757 | const pj_sockaddr_t *remaddr, |
| 758 | int addr_len) |
| 759 | { |
| 760 | PJ_UNUSED_ARG(pool); |
| 761 | return pj_ioqueue_connect(asock->key, remaddr, addr_len); |
| 762 | } |
| 763 | |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 764 | static void ioqueue_on_connect_complete(pj_ioqueue_key_t *key, |
| 765 | pj_status_t status) |
| 766 | { |
| 767 | pj_activesock_t *asock = (pj_activesock_t*) pj_ioqueue_get_user_data(key); |
| 768 | |
| 769 | if (asock->cb.on_connect_complete) { |
| 770 | pj_bool_t ret; |
| 771 | |
| 772 | ret = (*asock->cb.on_connect_complete)(asock, status); |
| 773 | |
| 774 | if (!ret) { |
| 775 | /* We've been destroyed */ |
| 776 | return; |
| 777 | } |
| 778 | } |
| 779 | } |
Benny Prijono | 1dd5420 | 2008-07-25 10:45:34 +0000 | [diff] [blame] | 780 | #endif /* PJ_HAS_TCP */ |
Benny Prijono | 4bac2c1 | 2008-05-11 18:12:16 +0000 | [diff] [blame] | 781 | |