Mercurial > repos > rhope

comparison net.c @ 0:76568becd6d6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Rhope Alpha 2a source import
author Mike Pavone <pavone@retrodev.com>
date Tue, 28 Apr 2009 23:06:07 +0000
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:76568becd6d6
1 #ifdef WIN32
2 #include <winsock.h>
3 #else
4 #include <sys/types.h>
5 #include <sys/socket.h>
6 #include <netinet/in.h>
7 #include <netdb.h>
8 #include <arpa/inet.h>
9 #endif
10 #include <string.h>
11 #include <stdlib.h>
12 #include "datum.h"
13 #include "structs.h"
14 #include "vis_threading.h"
15 #include "interp.h"
16
17 #ifdef WIN32
18 #define VIS_CloseSocket(sock) closesocket(sock)
19 #else
20 #define VIS_CloseSocket(sock) close(sock)
21 #endif
22
23 #define NET_SEARCH_BUFFER_SIZE 512
24
25 typedef struct netbuffer {
26 char buffer[NET_SEARCH_BUFFER_SIZE];
27 int index;
28 struct netbuffer * next;
29 } netbuffer;
30 /*
31 typedef struct
32 {
33 int sockfd;
34 netbuffer * buffers;
35 VIS_CRITICAL_SECTION(lock)
36 } net_client_data;*/
37
38 int send_all(int sockfd, char * data, int len)
39 {
40 int sent = 0;
41 int temp;
42 while(sent < len)
43 {
44 temp = send(sockfd, data+sent, len-sent, 0);
45 if(temp < 0)
46 {
47 DEBUGPUTS("send_all() failed\n");
48 return 0-sent;
49 }
50 sent += temp;
51 }
52 return sent;
53 }
54
55 int recv_all(int sockfd, char * data, int len)
56 {
57 int temp;
58 int received = 0;
59 while(received < len)
60 {
61 temp = recv(sockfd, data, len-received, 0);
62 if(temp < 0)
63 {
64 return 0 - received;
65 }
66 received += temp;
67 }
68 return received;
69 }
70
71 int net_client_new(datum ** params, queue_entry * worker_entry)
72 {
73 int sockfd, i;
74 //net_client_data * net;
75 struct sockaddr_in dest;
76 struct hostent * h;
77 char * host = params[0]->c.generic.data;
78 int hostlen = params[0]->c.generic.len;
79 for(i = 0; i < hostlen; ++i)
80 if((host[i] < '0' || host[i] > '0') && host[i] != '.')
81 {
82 h = gethostbyname(host);
83 if(!h)
84 {
85 release_ref(params[0]);
86 release_ref(params[1]);
87 params[0] = NULL;
88 params[1] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, worker_entry->instance->def->program);
89 params[1]->c.integers.num_a = 0;
90 return 0;
91 }
92 host = inet_ntoa(*((struct in_addr *)h->h_addr));
93 break;
94 }
95 sockfd = socket(PF_INET, SOCK_STREAM, 0);
96
97 dest.sin_family = AF_INET;
98 dest.sin_port = htons(params[1]->c.integers.num_a);
99 dest.sin_addr.s_addr = inet_addr(host);
100 memset(&(dest.sin_zero), '\0', 8);
101
102 release_ref(params[0]);
103 release_ref(params[1]);
104 params[0] = params[1] = NULL;
105
106 if(connect(sockfd, (struct sockaddr *)&dest, sizeof(struct sockaddr)) != 1)
107 {
108 params[0] = new_datum(BUILTIN_TYPE_NETCLIENT, 2, 0, worker_entry->instance->def->program);//sizeof(net_client_data));
109 params[0]->c.integers.num_a = sockfd;
110 /*net = params[0]->c.generic.data;
111 net->sockfd = sockfd;
112 net->buffers = NULL;*/
113
114 // VIS_InitializeCriticalSection(net->lock);
115 DEBUGPUTS("Connection established\n");
116 }
117 else
118 {
119 params[1] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, worker_entry->instance->def->program);
120 params[1]->c.integers.num_a = 0;
121 DEBUGPUTS("connect() failed\n");
122 }
123 return 0;
124 }
125
126 int net_client_put_string(datum ** params, queue_entry * worker_entry)
127 {
128 //net_client_data * net = params[0]->c.generic.data;
129 //int sockfd = net->sockfd;
130 int sockfd = params[0]->c.integers.num_a;
131 int to_send = params[1]->c.generic.len-1;
132 char * data = params[1]->c.generic.data;
133 int sent;
134 if(to_send)
135 {
136 sent = send_all(sockfd, data, to_send);
137
138 if(sent != to_send)
139 {
140 release_ref(params[0]);
141 release_ref(params[1]);
142 params[0] = NULL;
143 params[1] = new_datum(BUILTIN_TYPE_WHOLE, 2, 0, worker_entry->instance->def->program);
144 params[1]->c.integers.num_a = 0-sent;
145 DEBUGPUTS("send() failed\n");
146 return 0;
147 }
148 }
149 DEBUGPRINTF("Sent %s\n", data);
150 release_ref(params[1]);
151 params[1] = NULL;
152 return 0;
153 }
154
155 int net_client_get_fstring(datum ** params, queue_entry * worker_entry)
156 {
157 char * buf;
158 //net_client_data * net = params[0]->c.generic.data;
159 //int sockfd = net->sockfd;
160 int sockfd = params[0]->c.integers.num_a;
161 int to_receive = params[1]->c.integers.num_a;
162 int temp, received = 0;
163 datum * output = new_datum(BUILTIN_TYPE_STRING, 1, params[1]->c.integers.num_a+1, worker_entry->instance->def->program);
164 release_ref(params[1]);
165 buf = output->c.generic.data;
166 while(received < to_receive)
167 {
168 temp = recv(sockfd, buf+received, to_receive-received, 0);
169 if(temp < 0)
170 {
171 release_ref(params[0]);
172 params[0] = params[1] = NULL;
173 params[2] = output;
174 return 0;
175 }
176 received += temp;
177 }
178 params[1] = output;
179 params[2] = NULL;
180 return 0;
181 }
182
183 int net_client_get_dstring(datum ** inputlist, queue_entry * worker_entry)
184 {
185 BOOL found = FALSE;
186 netbuffer buf;
187 netbuffer * current, *first, *temp,*temp2;
188 int i,j,k,startk;
189 int found_entry;
190 int string_offset;
191 int search_offset;
192 netbuffer * search_start;
193 int search_start_offset;
194 int *search_offsets;
195 netbuffer ** search_starts;
196 int *search_start_offsets;
197 int read_bytes;
198 int buf_pos;
199 int sockfd = inputlist[0]->c.integers.num_a;
200 //net_client_data * net = inputlist[0]->c.generic.data;
201
202 list_data * list;
203 if(inputlist[1]->company->type_id == BUILTIN_TYPE_LIST)
204 {
205
206 list = ((list_data *)inputlist[1]->c.generic.data);
207 DEBUGPRINTF("Delimeter input is a list with %d entries.\n", list->num_entries);
208 search_offsets = malloc(sizeof(int) * (list->num_entries));
209 DEBUGPRINTF("Allocated %d bytes.\n", sizeof(int) * (list->num_entries));
210 search_starts = malloc(sizeof(netbuffer *) * (list->num_entries));
211 DEBUGPRINTF("Allocated %d bytes.\n", sizeof(netbuffer *) * (list->num_entries));
212 search_start_offsets = malloc(sizeof(int) * (list->num_entries));
213 DEBUGPRINTF("Allocated %d bytes.\n", sizeof(int) * (list->num_entries));
214 for(i = 0; i < list->num_entries; ++i)
215 {
216 DEBUGPRINTF("Setting search_offsets[%d] = 0.\n", i);
217 search_offsets[i] = 0;
218 }
219 }
220 search_offset = 0;
221 first = &buf;
222 first->next = NULL;
223 current = first;
224 current->index = 0;
225 first = current;
226 read_bytes = 1;
227 while(!found && read_bytes == 1)
228 {
229 buf_pos = 0;
230 for(i = 0; i < NET_SEARCH_BUFFER_SIZE && !found; ++i)
231 {
232 if(i >= buf_pos)
233 {
234 read_bytes = recv(sockfd, current->buffer+i, 1, 0);
235 if(read_bytes != 1)
236 break;
237 ++buf_pos;
238 }
239 DEBUGPRINTF("Checking character #%d (%c)\n", i, current->buffer[i]);
240 switch(inputlist[1]->company->type_id)
241 {
242 case BUILTIN_TYPE_WHOLE:
243 if((int)current->buffer[i] == inputlist[1]->c.integers.num_a)
244 {
245 found = TRUE;
246 search_offset = 1;
247 search_start = current;
248 search_start_offset = i;
249 }
250 break;
251 case BUILTIN_TYPE_STRING:
252 DEBUGPRINTF("Comparing with character %d of delim: %c (%X)\n", search_offset, ((char *)inputlist[1]->c.generic.data)[search_offset], ((char *)inputlist[1]->c.generic.data)[search_offset]);
253 if(current->buffer[i] == ((char *)inputlist[1]->c.generic.data)[search_offset])
254 {
255 if(search_offset == 0)
256 {
257 search_start = current;
258 search_start_offset = i;
259 }
260 ++search_offset;
261 DEBUGPRINTF("Search offset is: %d, delim len is: %d\n", search_offset, (inputlist[1]->c.generic.len-1));
262 if(search_offset == (inputlist[1]->c.generic.len-1))
263 {
264 found = TRUE;
265 DEBUGPUTS("Matched delim\n");
266 }
267 }
268 else
269 {
270 if(search_offset > 0)
271 {
272 current = search_start;
273 i = search_start_offset;
274 }
275 search_offset = 0;
276 }
277 break;
278 case BUILTIN_TYPE_LIST:
279 for(j = 0; j < list->num_entries; ++j)
280 {
281 DEBUGPRINTF("Testing list entry %d against character %d in buffer %d\n", j, i, current->index);
282 if(list->entries[j]->company->type_id == BUILTIN_TYPE_WHOLE && (int)current->buffer[i] == list->entries[j]->c.integers.num_a)
283 {
284 DEBUGPUTS("Matched whole number entry.\n");
285 found = TRUE;
286 found_entry = j;
287 search_offset = 1;
288 search_start = current;
289 search_start_offset = i;
290 break;
291 }
292 else if(list->entries[j]->company->type_id == BUILTIN_TYPE_STRING)
293 {
294 DEBUGPUTS("String entry.\n");
295 if(current->buffer[i] == ((char *)list->entries[j]->c.generic.data)[search_offsets[j]])
296 {
297 DEBUGPRINTF("%c in buffer matches character #%d in entry.\n", current->buffer[i], search_offsets[j]);
298 if(search_offsets[j] == 0)
299 {
300 search_starts[j] = current;
301 search_start_offsets[j] = i;
302 }
303 ++search_offsets[j];
304 if(search_offsets[j] == (list->entries[j]->c.generic.len-1))
305 {
306 DEBUGPUTS("Entire string matched.\n");
307 found = TRUE;
308 found_entry = j;
309 search_offset = search_offsets[j];
310 search_start = search_starts[j];
311 search_start_offset = search_start_offsets[j];
312 break;
313 }
314 }
315 else if(search_offsets[j] > 0)
316 {
317 DEBUGPRINTF("%c in bufer does not match character #%d in entry.\n", current->buffer[i], search_offsets[j]);
318 temp = search_starts[j];
319 search_offsets[j] = 0;
320 startk = search_start_offsets[j];
321 while(temp && !found)
322 {
323 DEBUGPRINTF("Scanning block %d for possible missed match from %d to %d.\n", temp->index, startk, (temp == current ? i : NET_SEARCH_BUFFER_SIZE)-1);
324 for(k = startk; k < (temp == current ? i : NET_SEARCH_BUFFER_SIZE); ++k)
325 {
326 if(temp->buffer[k] == ((char *)list->entries[j]->c.generic.data)[search_offsets[j]])
327 {
328 if(!search_offsets[j])
329 {
330 search_starts[j] = temp;
331 search_start_offsets[j] = k;
332 }
333 ++search_offsets[j];
334 if(search_offset == (list->entries[j]->c.generic.len-1))
335 {
336 found = TRUE;
337 found_entry = j;
338 search_start = search_starts[j];
339 search_start_offset = search_start_offsets[j];
340 }
341 }
342 else
343 {
344 if(search_offsets[j] > 0)
345 {
346 temp = search_starts[j];
347 k = search_start_offsets[j];
348 }
349 search_offsets[j] = 0;
350 }
351 }
352 startk = 0;
353 temp = temp->next;
354 }
355
356 }
357 else
358 search_offsets[j] = 0;
359
360 }
361 }
362 break;
363 }
364 }
365 if(!found && read_bytes == 1)
366 {
367 current->next = malloc(sizeof(netbuffer));
368 current->next->index = current->index+1;
369 //current->next->offset = current->next->filled = 0;
370 current->next->next = NULL;
371 current = current->next;
372 }
373 }
374 if(inputlist[1]->company->type_id == BUILTIN_TYPE_LIST)
375 {
376 VIS_FREE(search_offsets, "Get DString@Net Clinet, search offsets");
377 VIS_FREE(search_starts, "Get DString@Net Clinet, search starts");
378 VIS_FREE(search_start_offsets, "Get DString@Net Clinet, search start offsets");
379 }
380 if(found)
381 {
382 if(inputlist[1]->company->type_id == BUILTIN_TYPE_LIST)
383 {
384 inputlist[2] = add_ref(list->entries[found_entry]);
385 release_ref(inputlist[1]);
386 }
387 else
388 inputlist[2] = inputlist[1];
389 inputlist[3] = NULL;
390 }
391 else
392 {
393 release_ref(inputlist[1]);
394 inputlist[3] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, worker_entry->instance->def->program);
395 datum_set_yesno(inputlist[3], 0);
396 inputlist[2] = NULL;
397 release_ref(inputlist[0]);
398 inputlist[0] = NULL;
399 }
400 //Does this need to be here still or was it just working around another bug?
401 if(search_start_offset < 0)
402 search_start_offset = 0;
403 if(!found) {
404 search_start = current;
405 search_start_offset = i;
406 }
407 DEBUGPRINTF("Allocating string of length: %d = %d * %d + %d + 1\n", NET_SEARCH_BUFFER_SIZE * search_start->index + search_start_offset+1, NET_SEARCH_BUFFER_SIZE , search_start->index, search_start_offset);
408 inputlist[1] = new_datum(BUILTIN_TYPE_STRING, 1, NET_SEARCH_BUFFER_SIZE * search_start->index + search_start_offset+1, worker_entry->instance->def->program);
409 temp = first;
410 string_offset = 0;
411 while(temp)
412 {
413 DEBUGPRINTF("Copying from index %d to offset %X\n", temp->index, string_offset);
414 if(temp == search_start)
415 {
416 //if(found)
417 //{
418 temp->buffer[search_start_offset] = '\0';
419 memcpy(((char *)inputlist[1]->c.generic.data)+string_offset, temp->buffer, search_start_offset);
420 string_offset += search_start_offset;
421 /*}
422 else
423 {
424 memcpy(((char *)inputlist[1]->c.generic.data)+string_offset, temp->buffer, i);
425 string_offset += i;
426 }*/
427 break;
428 }
429 else
430 {
431 memcpy(((char *)inputlist[1]->c.generic.data)+string_offset, temp->buffer, NET_SEARCH_BUFFER_SIZE);
432 string_offset += NET_SEARCH_BUFFER_SIZE;
433 }
434 if(temp != first)
435 {
436 temp2 = temp->next;
437 VIS_FREE(temp, "Get DString@Net Client, buffer node");
438 temp = temp2;
439 }
440 else
441 temp = temp->next;
442 }
443 while(temp)
444 {
445 if(temp != first)
446 {
447 temp2 = temp->next;
448 VIS_FREE(temp, "Get DString@Net Client, buffer node");
449 temp = temp2;
450 }
451 else
452 temp = temp->next;
453 }
454 ((char *)inputlist[1]->c.generic.data)[string_offset] = '\0';
455 DEBUGPRINTF("Retrieved: %s\ninputlist[0] = %X\n", inputlist[1]->c.generic.data, inputlist[0]);
456 return 0;
457 }
458
459 int net_client_put_raw(datum ** params, queue_entry * entry)
460 {
461 int sockfd = params[0]->c.integers.num_a;
462 int sent;
463 if(params[1]->union_type == 1 && params[1]->c.generic.len)
464 {
465 sent = send_all(sockfd, params[1]->c.generic.data, params[1]->c.generic.len);
466 if(sent <= 0)
467 {
468 release_ref(params[0]);
469 release_ref(params[1]);
470 params[0] = NULL;
471 params[1] = new_datum(BUILTIN_TYPE_WHOLE, 2, 0, entry->instance->def->program);
472 params[1]->c.integers.num_a = 0-sent;
473 return 0;
474 }
475 }
476 release_ref(params[1]);
477 params[1] = NULL;
478 return 0;
479 }
480
481 int net_client_get_raw(datum ** params, queue_entry * entry)
482 {
483 int sockfd = params[0]->c.integers.num_a;
484 int got;
485 params[1] = copy_datum(params[1], 0);
486 if(params[1]->union_type == 1 && params[1]->c.generic.len)
487 {
488 got = recv_all(sockfd, params[1]->c.generic.data, params[1]->c.generic.len);
489 if(got <= 0)
490 {
491 release_ref(params[0]);
492 release_ref(params[1]);
493 params[0] = params[1] = NULL;
494 params[2] = new_datum(BUILTIN_TYPE_WHOLE, 2, 0, entry->instance->def->program);
495 params[2]->c.integers.num_a = 0-got;
496 return 0;
497 }
498 }
499 params[2] = NULL;
500 return 0;
501 }
502
503 typedef struct
504 {
505 int sockfd;
506 datum * callback;
507 program * program;
508 } net_listen_data;
509
510 DWORD WINAPI listen_thread(net_listen_data * listen)
511 {
512 worker_datum * work = listen->callback->c.generic.data;
513 struct sockaddr_in client_addy;
514 int addy_len;
515 int newsock;
516 int i;
517 queue_entry entry;
518 datum * params[32];
519 BOOL netparam;
520 worker_instance inst;
521 entry.worker_num = 0;
522 entry.instance = &inst;
523 inst.def = listen->program->defs->deflist;//Use Main
524 inst.caller_instance = NULL;
525 inst.trans = NULL;
526 inst.num_workers = inst.num_wires = 0;
527 VIS_InitializeCriticalSection(inst.counter_lock);
528
529 while(execute_active)
530 {
531 addy_len = sizeof(client_addy);
532 newsock = accept(listen->sockfd, (struct sockaddr *)&client_addy, &addy_len);
533 if(newsock != -1)
534 {
535 netparam = FALSE;
536 for(i = 0; i < work->def->num_inputs; ++i)
537 if(work->params[i])
538 params[i] = add_ref(work->params[i]);
539 else if(!netparam)
540 {
541 params[i] = new_datum(BUILTIN_TYPE_NETCLIENT, 2, 0, listen->program);
542 params[i]->c.integers.num_a = newsock;
543 netparam = TRUE;
544 }
545 else
546 params[i] = NULL;
547 //Make sure that our fake instance is never cleaned up
548 inst.in_progress_count = inst.in_queue_count = 1000;
549 execute_def(work->def, entry, params, NULL);
550 }
551 }
552 release_ref(listen->callback);
553 VIS_CloseSocket(listen->sockfd);
554 VIS_FREE(listen, "Net listener object");
555 return 0;
556 }
557
558 int vis_net_listenport(datum ** params, queue_entry * entry)
559 {
560 int junk;
561 struct sockaddr_in my_address;
562 int port = params[0]->c.integers.num_a;
563 net_listen_data * listener = malloc(sizeof(net_listen_data));
564 release_ref(params[0]);
565
566 DEBUGPUTS("calling socket\n");
567 listener->callback = params[1];
568 listener->sockfd = socket(PF_INET, SOCK_STREAM, 0);
569 listener->program = entry->instance->def->program;
570 if(listener->sockfd == -1)
571 {
572 release_ref(params[1]);
573 VIS_FREE(listener, "net listener object");
574 params[1] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, entry->instance->def->program);
575 params[1]->c.integers.num_a = 0;
576 params[0] = NULL;
577 return 0;
578 }
579 DEBUGPRINTF("Socket: %X\n", listener->sockfd);
580
581 my_address.sin_family = AF_INET;
582 my_address.sin_port = htons(port);
583 my_address.sin_addr.s_addr = INADDR_ANY;
584 memset(&(my_address.sin_zero), '\0', 8);
585
586 DEBUGPRINTF("Calling bind on port: %d\n", port);
587 junk = bind(listener->sockfd, (struct sockaddr *)&my_address, sizeof(struct sockaddr));
588 DEBUGPRINTF("Bind returned: %d\n", junk);
589 if(junk == -1)
590 {
591 perror("bind");
592 DEBUGPUTS("bind failed, releasing ref to callback worker\n");
593 release_ref(params[1]);
594 DEBUGPUTS("Closing socket\n");
595 DEBUGPRINTF("Socket: %X\n", listener->sockfd);
596 VIS_CloseSocket(listener->sockfd);
597 DEBUGPUTS("Freeing listener data\n");
598 VIS_FREE(listener, "net listener object");
599 DEBUGPUTS("Allocating error output\n");
600 params[1] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, entry->instance->def->program);
601 params[1]->c.integers.num_a = 0;
602 params[0] = NULL;
603 return 0;
604 }
605
606 DEBUGPUTS("Calling listen\n");
607 if(listen(listener->sockfd, 10) == -1)
608 {
609 release_ref(params[1]);
610 VIS_CloseSocket(listener->sockfd);
611 VIS_FREE(listener, "net listener object");
612 params[1] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, entry->instance->def->program);
613 params[1]->c.integers.num_a = 0;
614 params[0] = NULL;
615 return 0;
616 }
617 DEBUGPUTS("Creating new thread\n");
618 VIS_NewThread(listen_thread, listener);
619 params[0] = new_datum(BUILTIN_TYPE_YESNO, 2, 0, entry->instance->def->program);
620 params[0]->c.integers.num_a = 0;
621 params[1] = NULL;
622 return 0;
623 }
624
625