Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % DDDD IIIII SSSSS TTTTT RRRR IIIII BBBB U U TTTTT EEEEE % |
| 6 | % D D I SS T R R I B B U U T E % |
| 7 | % D D I SSS T RRRR I BBBB U U T EEE % |
| 8 | % D D I SS T R R I B B U U T E % |
| 9 | % DDDDA IIIII SSSSS T R R IIIII BBBB UUU T EEEEE % |
| 10 | % % |
| 11 | % CCCC AAA CCCC H H EEEEE % |
| 12 | % C A A C H H E % |
| 13 | % C AAAAA C HHHHH EEE % |
| 14 | % C A A C H H E % |
| 15 | % CCCC A A CCCC H H EEEEE % |
| 16 | % % |
| 17 | % % |
| 18 | % MagickCore Distributed Pixel Cache Methods % |
| 19 | % % |
| 20 | % Software Design % |
| 21 | % Cristy % |
| 22 | % January 2013 % |
| 23 | % % |
| 24 | % % |
Cristy | f6ff9ea | 2016-12-05 09:53:35 -0500 | [diff] [blame] | 25 | % Copyright 1999-2017 ImageMagick Studio LLC, a non-profit organization % |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 26 | % dedicated to making software imaging solutions freely available. % |
| 27 | % % |
| 28 | % You may not use this file except in compliance with the License. You may % |
| 29 | % obtain a copy of the License at % |
| 30 | % % |
Cristy | f19d414 | 2017-04-24 11:34:30 -0400 | [diff] [blame^] | 31 | % https://www.imagemagick.org/script/license.php % |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 32 | % % |
| 33 | % Unless required by applicable law or agreed to in writing, software % |
| 34 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 35 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 36 | % See the License for the specific language governing permissions and % |
| 37 | % limitations under the License. % |
| 38 | % % |
| 39 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 40 | % |
| 41 | % A distributed pixel cache is an extension of the traditional pixel cache |
| 42 | % available on a single host. The distributed pixel cache may span multiple |
| 43 | % servers so that it can grow in size and transactional capacity to support |
| 44 | % very large images. Start up the pixel cache server on one or more machines. |
| 45 | % When you read or operate on an image and the local pixel cache resources are |
| 46 | % exhausted, ImageMagick contacts one or more of these remote pixel servers to |
| 47 | % store or retrieve pixels. |
| 48 | % |
| 49 | */ |
| 50 | |
| 51 | /* |
| 52 | Include declarations. |
| 53 | */ |
| 54 | #include "MagickCore/studio.h" |
| 55 | #include "MagickCore/cache.h" |
| 56 | #include "MagickCore/cache-private.h" |
| 57 | #include "MagickCore/distribute-cache.h" |
| 58 | #include "MagickCore/distribute-cache-private.h" |
| 59 | #include "MagickCore/exception.h" |
| 60 | #include "MagickCore/exception-private.h" |
| 61 | #include "MagickCore/geometry.h" |
| 62 | #include "MagickCore/image.h" |
| 63 | #include "MagickCore/image-private.h" |
| 64 | #include "MagickCore/list.h" |
| 65 | #include "MagickCore/locale_.h" |
| 66 | #include "MagickCore/memory_.h" |
| 67 | #include "MagickCore/nt-base-private.h" |
| 68 | #include "MagickCore/pixel.h" |
| 69 | #include "MagickCore/policy.h" |
| 70 | #include "MagickCore/random_.h" |
| 71 | #include "MagickCore/registry.h" |
| 72 | #include "MagickCore/splay-tree.h" |
| 73 | #include "MagickCore/string_.h" |
| 74 | #include "MagickCore/string-private.h" |
| 75 | #include "MagickCore/version.h" |
| 76 | #include "MagickCore/version-private.h" |
| 77 | #undef MAGICKCORE_HAVE_DISTRIBUTE_CACHE |
| 78 | #if defined(MAGICKCORE_HAVE_SOCKET) && defined(MAGICKCORE_THREAD_SUPPORT) |
| 79 | #include <netinet/in.h> |
| 80 | #include <netdb.h> |
| 81 | #include <sys/socket.h> |
| 82 | #include <arpa/inet.h> |
| 83 | #define CHAR_TYPE_CAST |
| 84 | #define CLOSE_SOCKET(socket) (void) close(socket) |
| 85 | #define HANDLER_RETURN_TYPE void * |
| 86 | #define HANDLER_RETURN_VALUE (void *) NULL |
| 87 | #define SOCKET_TYPE int |
| 88 | #define LENGTH_TYPE size_t |
| 89 | #define MAGICKCORE_HAVE_DISTRIBUTE_CACHE |
| 90 | #elif defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 91 | #define CHAR_TYPE_CAST (char *) |
| 92 | #define CLOSE_SOCKET(socket) (void) closesocket(socket) |
| 93 | #define HANDLER_RETURN_TYPE DWORD WINAPI |
| 94 | #define HANDLER_RETURN_VALUE 0 |
| 95 | #define SOCKET_TYPE SOCKET |
| 96 | #define LENGTH_TYPE int |
| 97 | #define MAGICKCORE_HAVE_DISTRIBUTE_CACHE |
| 98 | #else |
| 99 | #ifdef __VMS |
| 100 | #define CLOSE_SOCKET(socket) (void) close(socket) |
| 101 | #else |
| 102 | #define CLOSE_SOCKET(socket) |
| 103 | #endif |
| 104 | #define HANDLER_RETURN_TYPE void * |
| 105 | #define HANDLER_RETURN_VALUE (void *) NULL |
| 106 | #define SOCKET_TYPE int |
| 107 | #undef send |
| 108 | #undef recv |
| 109 | #define send(file,buffer,length,flags) 0 |
| 110 | #define recv(file,buffer,length,flags) 0 |
| 111 | #endif |
| 112 | |
| 113 | /* |
| 114 | Define declarations. |
| 115 | */ |
| 116 | #define DPCHostname "127.0.0.1" |
| 117 | #define DPCPendingConnections 10 |
| 118 | #define DPCPort 6668 |
| 119 | #define DPCSessionKeyLength 8 |
| 120 | #ifndef MSG_NOSIGNAL |
| 121 | # define MSG_NOSIGNAL 0 |
| 122 | #endif |
| 123 | |
| 124 | /* |
| 125 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 126 | % % |
| 127 | % % |
| 128 | % % |
| 129 | + A c q u i r e D i s t r i b u t e C a c h e I n f o % |
| 130 | % % |
| 131 | % % |
| 132 | % % |
| 133 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 134 | % |
| 135 | % AcquireDistributeCacheInfo() allocates the DistributeCacheInfo structure. |
| 136 | % |
| 137 | % The format of the AcquireDistributeCacheInfo method is: |
| 138 | % |
| 139 | % DistributeCacheInfo *AcquireDistributeCacheInfo(ExceptionInfo *exception) |
| 140 | % |
| 141 | % A description of each parameter follows: |
| 142 | % |
| 143 | % o exception: return any errors or warnings in this structure. |
| 144 | % |
| 145 | */ |
| 146 | |
| 147 | static inline MagickOffsetType dpc_read(int file,const MagickSizeType length, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 148 | unsigned char *magick_restrict message) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 149 | { |
| 150 | register MagickOffsetType |
| 151 | i; |
| 152 | |
| 153 | ssize_t |
| 154 | count; |
| 155 | |
| 156 | #if !defined(MAGICKCORE_HAVE_DISTRIBUTE_CACHE) |
| 157 | magick_unreferenced(file); |
| 158 | magick_unreferenced(message); |
| 159 | #endif |
| 160 | |
| 161 | count=0; |
| 162 | for (i=0; i < (MagickOffsetType) length; i+=count) |
| 163 | { |
| 164 | count=recv(file,CHAR_TYPE_CAST message+i,(LENGTH_TYPE) MagickMin(length-i, |
| 165 | (MagickSizeType) SSIZE_MAX),0); |
| 166 | if (count <= 0) |
| 167 | { |
| 168 | count=0; |
| 169 | if (errno != EINTR) |
| 170 | break; |
| 171 | } |
| 172 | } |
| 173 | return(i); |
| 174 | } |
| 175 | |
| 176 | static int ConnectPixelCacheServer(const char *hostname,const int port, |
| 177 | size_t *session_key,ExceptionInfo *exception) |
| 178 | { |
| 179 | #if defined(MAGICKCORE_HAVE_DISTRIBUTE_CACHE) |
| 180 | char |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 181 | service[MagickPathExtent], |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 182 | *shared_secret; |
| 183 | |
| 184 | int |
| 185 | status; |
| 186 | |
| 187 | SOCKET_TYPE |
| 188 | client_socket; |
| 189 | |
| 190 | ssize_t |
| 191 | count; |
| 192 | |
| 193 | struct addrinfo |
| 194 | hint, |
| 195 | *result; |
| 196 | |
| 197 | unsigned char |
| 198 | secret[MagickPathExtent]; |
| 199 | |
| 200 | /* |
| 201 | Connect to distributed pixel cache and get session key. |
| 202 | */ |
| 203 | *session_key=0; |
Cristy | 2d44ac8 | 2017-03-13 08:45:31 -0400 | [diff] [blame] | 204 | shared_secret=GetPolicyValue("cache:shared-secret"); |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 205 | if (shared_secret == (char *) NULL) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 206 | { |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 207 | shared_secret=DestroyString(shared_secret); |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 208 | (void) ThrowMagickException(exception,GetMagickModule(),CacheError, |
| 209 | "DistributedPixelCache","'%s'","shared secret expected"); |
| 210 | return(-1); |
| 211 | } |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 212 | shared_secret=DestroyString(shared_secret); |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 213 | #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 214 | NTInitializeWinsock(MagickTrue); |
| 215 | #endif |
| 216 | (void) ResetMagickMemory(&hint,0,sizeof(hint)); |
| 217 | hint.ai_family=AF_INET; |
| 218 | hint.ai_socktype=SOCK_STREAM; |
| 219 | hint.ai_flags=AI_PASSIVE; |
| 220 | (void) FormatLocaleString(service,MagickPathExtent,"%d",port); |
| 221 | status=getaddrinfo(hostname,service,&hint,&result); |
| 222 | if (status != 0) |
| 223 | { |
| 224 | (void) ThrowMagickException(exception,GetMagickModule(),CacheError, |
| 225 | "DistributedPixelCache","'%s'",hostname); |
| 226 | return(-1); |
| 227 | } |
| 228 | client_socket=socket(result->ai_family,result->ai_socktype, |
| 229 | result->ai_protocol); |
| 230 | if (client_socket == -1) |
| 231 | { |
| 232 | freeaddrinfo(result); |
| 233 | (void) ThrowMagickException(exception,GetMagickModule(),CacheError, |
| 234 | "DistributedPixelCache","'%s'",hostname); |
| 235 | return(-1); |
| 236 | } |
| 237 | status=connect(client_socket,result->ai_addr,(socklen_t) result->ai_addrlen); |
| 238 | if (status == -1) |
| 239 | { |
| 240 | CLOSE_SOCKET(client_socket); |
| 241 | freeaddrinfo(result); |
| 242 | (void) ThrowMagickException(exception,GetMagickModule(),CacheError, |
| 243 | "DistributedPixelCache","'%s'",hostname); |
| 244 | return(-1); |
| 245 | } |
| 246 | count=recv(client_socket,CHAR_TYPE_CAST secret,MagickPathExtent,0); |
| 247 | if (count != -1) |
| 248 | { |
| 249 | StringInfo |
| 250 | *nonce; |
| 251 | |
| 252 | nonce=AcquireStringInfo(count); |
| 253 | (void) memcpy(GetStringInfoDatum(nonce),secret,(size_t) count); |
| 254 | *session_key=GetMagickSignature(nonce); |
| 255 | nonce=DestroyStringInfo(nonce); |
| 256 | } |
| 257 | if (*session_key == 0) |
| 258 | { |
| 259 | CLOSE_SOCKET(client_socket); |
| 260 | client_socket=(SOCKET_TYPE) (-1); |
| 261 | } |
| 262 | freeaddrinfo(result); |
| 263 | return(client_socket); |
| 264 | #else |
| 265 | (void) ThrowMagickException(exception,GetMagickModule(),MissingDelegateError, |
| 266 | "DelegateLibrarySupportNotBuiltIn","distributed pixel cache"); |
| 267 | return(MagickFalse); |
| 268 | #endif |
| 269 | } |
| 270 | |
| 271 | static char *GetHostname(int *port,ExceptionInfo *exception) |
| 272 | { |
| 273 | char |
| 274 | *host, |
| 275 | *hosts, |
| 276 | **hostlist; |
| 277 | |
| 278 | int |
| 279 | argc; |
| 280 | |
| 281 | register ssize_t |
| 282 | i; |
| 283 | |
| 284 | static size_t |
| 285 | id = 0; |
| 286 | |
| 287 | /* |
| 288 | Parse host list (e.g. 192.168.100.1:6668,192.168.100.2:6668). |
| 289 | */ |
| 290 | hosts=(char *) GetImageRegistry(StringRegistryType,"cache:hosts",exception); |
| 291 | if (hosts == (char *) NULL) |
| 292 | { |
| 293 | *port=DPCPort; |
| 294 | return(AcquireString(DPCHostname)); |
| 295 | } |
| 296 | (void) SubstituteString(&hosts,","," "); |
| 297 | hostlist=StringToArgv(hosts,&argc); |
| 298 | hosts=DestroyString(hosts); |
| 299 | if (hostlist == (char **) NULL) |
| 300 | { |
| 301 | *port=DPCPort; |
| 302 | return(AcquireString(DPCHostname)); |
| 303 | } |
| 304 | hosts=AcquireString(hostlist[(id++ % (argc-1))+1]); |
| 305 | for (i=0; i < (ssize_t) argc; i++) |
| 306 | hostlist[i]=DestroyString(hostlist[i]); |
| 307 | hostlist=(char **) RelinquishMagickMemory(hostlist); |
| 308 | (void) SubstituteString(&hosts,":"," "); |
| 309 | hostlist=StringToArgv(hosts,&argc); |
| 310 | if (hostlist == (char **) NULL) |
| 311 | { |
| 312 | *port=DPCPort; |
| 313 | return(AcquireString(DPCHostname)); |
| 314 | } |
| 315 | host=AcquireString(hostlist[1]); |
| 316 | if (hostlist[2] == (char *) NULL) |
| 317 | *port=DPCPort; |
| 318 | else |
| 319 | *port=StringToLong(hostlist[2]); |
| 320 | for (i=0; i < (ssize_t) argc; i++) |
| 321 | hostlist[i]=DestroyString(hostlist[i]); |
| 322 | hostlist=(char **) RelinquishMagickMemory(hostlist); |
| 323 | return(host); |
| 324 | } |
| 325 | |
| 326 | MagickPrivate DistributeCacheInfo *AcquireDistributeCacheInfo( |
| 327 | ExceptionInfo *exception) |
| 328 | { |
| 329 | char |
| 330 | *hostname; |
| 331 | |
| 332 | DistributeCacheInfo |
| 333 | *server_info; |
| 334 | |
| 335 | size_t |
| 336 | session_key; |
| 337 | |
| 338 | /* |
| 339 | Connect to the distributed pixel cache server. |
| 340 | */ |
| 341 | server_info=(DistributeCacheInfo *) AcquireMagickMemory(sizeof(*server_info)); |
| 342 | if (server_info == (DistributeCacheInfo *) NULL) |
| 343 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 344 | (void) ResetMagickMemory(server_info,0,sizeof(*server_info)); |
| 345 | server_info->signature=MagickCoreSignature; |
| 346 | server_info->port=0; |
| 347 | hostname=GetHostname(&server_info->port,exception); |
| 348 | session_key=0; |
| 349 | server_info->file=ConnectPixelCacheServer(hostname,server_info->port, |
| 350 | &session_key,exception); |
| 351 | if (server_info->file == -1) |
| 352 | server_info=DestroyDistributeCacheInfo(server_info); |
| 353 | else |
| 354 | { |
| 355 | server_info->session_key=session_key; |
| 356 | (void) CopyMagickString(server_info->hostname,hostname,MagickPathExtent); |
| 357 | server_info->debug=IsEventLogging(); |
| 358 | } |
| 359 | hostname=DestroyString(hostname); |
| 360 | return(server_info); |
| 361 | } |
| 362 | |
| 363 | /* |
| 364 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 365 | % % |
| 366 | % % |
| 367 | % % |
| 368 | + D e s t r o y D i s t r i b u t e C a c h e I n f o % |
| 369 | % % |
| 370 | % % |
| 371 | % % |
| 372 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 373 | % |
| 374 | % DestroyDistributeCacheInfo() deallocates memory associated with an |
| 375 | % DistributeCacheInfo structure. |
| 376 | % |
| 377 | % The format of the DestroyDistributeCacheInfo method is: |
| 378 | % |
| 379 | % DistributeCacheInfo *DestroyDistributeCacheInfo( |
| 380 | % DistributeCacheInfo *server_info) |
| 381 | % |
| 382 | % A description of each parameter follows: |
| 383 | % |
| 384 | % o server_info: the distributed cache info. |
| 385 | % |
| 386 | */ |
| 387 | MagickPrivate DistributeCacheInfo *DestroyDistributeCacheInfo( |
| 388 | DistributeCacheInfo *server_info) |
| 389 | { |
| 390 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 391 | assert(server_info->signature == MagickCoreSignature); |
| 392 | if (server_info->file > 0) |
| 393 | CLOSE_SOCKET(server_info->file); |
| 394 | server_info->signature=(~MagickCoreSignature); |
| 395 | server_info=(DistributeCacheInfo *) RelinquishMagickMemory(server_info); |
| 396 | return(server_info); |
| 397 | } |
| 398 | |
| 399 | /* |
| 400 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 401 | % % |
| 402 | % % |
| 403 | % % |
| 404 | + D i s t r i b u t e P i x e l C a c h e S e r v e r % |
| 405 | % % |
| 406 | % % |
| 407 | % % |
| 408 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 409 | % |
| 410 | % DistributePixelCacheServer() waits on the specified port for commands to |
| 411 | % create, read, update, or destroy a pixel cache. |
| 412 | % |
| 413 | % The format of the DistributePixelCacheServer() method is: |
| 414 | % |
| 415 | % void DistributePixelCacheServer(const int port) |
| 416 | % |
| 417 | % A description of each parameter follows: |
| 418 | % |
| 419 | % o port: connect the distributed pixel cache at this port. |
| 420 | % |
| 421 | % o exception: return any errors or warnings in this structure. |
| 422 | % |
| 423 | */ |
| 424 | |
| 425 | static MagickBooleanType DestroyDistributeCache(SplayTreeInfo *registry, |
| 426 | const size_t session_key) |
| 427 | { |
| 428 | /* |
| 429 | Destroy distributed pixel cache. |
| 430 | */ |
| 431 | return(DeleteNodeFromSplayTree(registry,(const void *) session_key)); |
| 432 | } |
| 433 | |
| 434 | static inline MagickOffsetType dpc_send(int file,const MagickSizeType length, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 435 | const unsigned char *magick_restrict message) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 436 | { |
| 437 | MagickOffsetType |
| 438 | count; |
| 439 | |
| 440 | register MagickOffsetType |
| 441 | i; |
| 442 | |
| 443 | #if !defined(MAGICKCORE_HAVE_DISTRIBUTE_CACHE) |
| 444 | magick_unreferenced(file); |
| 445 | magick_unreferenced(message); |
| 446 | #endif |
| 447 | |
| 448 | /* |
| 449 | Ensure a complete message is sent. |
| 450 | */ |
| 451 | count=0; |
| 452 | for (i=0; i < (MagickOffsetType) length; i+=count) |
| 453 | { |
| 454 | count=(MagickOffsetType) send(file,CHAR_TYPE_CAST message+i,(LENGTH_TYPE) |
| 455 | MagickMin(length-i,(MagickSizeType) SSIZE_MAX),MSG_NOSIGNAL); |
| 456 | if (count <= 0) |
| 457 | { |
| 458 | count=0; |
| 459 | if (errno != EINTR) |
| 460 | break; |
| 461 | } |
| 462 | } |
| 463 | return(i); |
| 464 | } |
| 465 | |
| 466 | static MagickBooleanType OpenDistributeCache(SplayTreeInfo *registry,int file, |
| 467 | const size_t session_key,ExceptionInfo *exception) |
| 468 | { |
| 469 | Image |
| 470 | *image; |
| 471 | |
| 472 | MagickBooleanType |
| 473 | status; |
| 474 | |
| 475 | MagickOffsetType |
| 476 | count; |
| 477 | |
| 478 | MagickSizeType |
| 479 | length; |
| 480 | |
| 481 | register unsigned char |
| 482 | *p; |
| 483 | |
| 484 | unsigned char |
| 485 | message[MagickPathExtent]; |
| 486 | |
| 487 | /* |
| 488 | Open distributed pixel cache. |
| 489 | */ |
| 490 | image=AcquireImage((ImageInfo *) NULL,exception); |
| 491 | if (image == (Image *) NULL) |
| 492 | return(MagickFalse); |
| 493 | length=sizeof(image->storage_class)+sizeof(image->colorspace)+ |
| 494 | sizeof(image->alpha_trait)+sizeof(image->read_mask)+ |
| 495 | sizeof(image->write_mask)+sizeof(image->columns)+sizeof(image->rows)+ |
| 496 | sizeof(image->number_channels)+MaxPixelChannels*sizeof(*image->channel_map)+ |
| 497 | sizeof(image->metacontent_extent); |
| 498 | count=dpc_read(file,length,message); |
| 499 | if (count != (MagickOffsetType) length) |
| 500 | return(MagickFalse); |
| 501 | /* |
| 502 | Deserialize the image attributes. |
| 503 | */ |
| 504 | p=message; |
| 505 | (void) memcpy(&image->storage_class,p,sizeof(image->storage_class)); |
| 506 | p+=sizeof(image->storage_class); |
| 507 | (void) memcpy(&image->colorspace,p,sizeof(image->colorspace)); |
| 508 | p+=sizeof(image->colorspace); |
| 509 | (void) memcpy(&image->alpha_trait,p,sizeof(image->alpha_trait)); |
| 510 | p+=sizeof(image->alpha_trait); |
| 511 | (void) memcpy(&image->read_mask,p,sizeof(image->read_mask)); |
| 512 | p+=sizeof(image->read_mask); |
| 513 | (void) memcpy(&image->write_mask,p,sizeof(image->write_mask)); |
| 514 | p+=sizeof(image->write_mask); |
| 515 | (void) memcpy(&image->columns,p,sizeof(image->columns)); |
| 516 | p+=sizeof(image->columns); |
| 517 | (void) memcpy(&image->rows,p,sizeof(image->rows)); |
| 518 | p+=sizeof(image->rows); |
| 519 | (void) memcpy(&image->number_channels,p,sizeof(image->number_channels)); |
| 520 | p+=sizeof(image->number_channels); |
| 521 | (void) memcpy(image->channel_map,p,MaxPixelChannels* |
| 522 | sizeof(*image->channel_map)); |
| 523 | p+=MaxPixelChannels*sizeof(*image->channel_map); |
| 524 | (void) memcpy(&image->metacontent_extent,p,sizeof(image->metacontent_extent)); |
| 525 | p+=sizeof(image->metacontent_extent); |
| 526 | if (SyncImagePixelCache(image,exception) == MagickFalse) |
| 527 | return(MagickFalse); |
| 528 | status=AddValueToSplayTree(registry,(const void *) session_key,image); |
| 529 | return(status); |
| 530 | } |
| 531 | |
| 532 | static MagickBooleanType ReadDistributeCacheMetacontent(SplayTreeInfo *registry, |
| 533 | int file,const size_t session_key,ExceptionInfo *exception) |
| 534 | { |
| 535 | const unsigned char |
| 536 | *metacontent; |
| 537 | |
| 538 | Image |
| 539 | *image; |
| 540 | |
| 541 | MagickOffsetType |
| 542 | count; |
| 543 | |
| 544 | MagickSizeType |
| 545 | length; |
| 546 | |
| 547 | RectangleInfo |
| 548 | region; |
| 549 | |
| 550 | register const Quantum |
| 551 | *p; |
| 552 | |
| 553 | register unsigned char |
| 554 | *q; |
| 555 | |
| 556 | unsigned char |
| 557 | message[MagickPathExtent]; |
| 558 | |
| 559 | /* |
| 560 | Read distributed pixel cache metacontent. |
| 561 | */ |
| 562 | image=(Image *) GetValueFromSplayTree(registry,(const void *) session_key); |
| 563 | if (image == (Image *) NULL) |
| 564 | return(MagickFalse); |
| 565 | length=sizeof(region.width)+sizeof(region.height)+sizeof(region.x)+ |
| 566 | sizeof(region.y)+sizeof(length); |
| 567 | count=dpc_read(file,length,message); |
| 568 | if (count != (MagickOffsetType) length) |
| 569 | return(MagickFalse); |
| 570 | q=message; |
| 571 | (void) memcpy(®ion.width,q,sizeof(region.width)); |
| 572 | q+=sizeof(region.width); |
| 573 | (void) memcpy(®ion.height,q,sizeof(region.height)); |
| 574 | q+=sizeof(region.height); |
| 575 | (void) memcpy(®ion.x,q,sizeof(region.x)); |
| 576 | q+=sizeof(region.x); |
| 577 | (void) memcpy(®ion.y,q,sizeof(region.y)); |
| 578 | q+=sizeof(region.y); |
| 579 | (void) memcpy(&length,q,sizeof(length)); |
| 580 | q+=sizeof(length); |
| 581 | p=GetVirtualPixels(image,region.x,region.y,region.width,region.height, |
| 582 | exception); |
| 583 | if (p == (const Quantum *) NULL) |
| 584 | return(MagickFalse); |
| 585 | metacontent=(const unsigned char *) GetVirtualMetacontent(image); |
| 586 | count=dpc_send(file,length,metacontent); |
| 587 | if (count != (MagickOffsetType) length) |
| 588 | return(MagickFalse); |
| 589 | return(MagickTrue); |
| 590 | } |
| 591 | |
| 592 | static MagickBooleanType ReadDistributeCachePixels(SplayTreeInfo *registry, |
| 593 | int file,const size_t session_key,ExceptionInfo *exception) |
| 594 | { |
| 595 | Image |
| 596 | *image; |
| 597 | |
| 598 | MagickOffsetType |
| 599 | count; |
| 600 | |
| 601 | MagickSizeType |
| 602 | length; |
| 603 | |
| 604 | RectangleInfo |
| 605 | region; |
| 606 | |
| 607 | register const Quantum |
| 608 | *p; |
| 609 | |
| 610 | register unsigned char |
| 611 | *q; |
| 612 | |
| 613 | unsigned char |
| 614 | message[MagickPathExtent]; |
| 615 | |
| 616 | /* |
| 617 | Read distributed pixel cache pixels. |
| 618 | */ |
| 619 | image=(Image *) GetValueFromSplayTree(registry,(const void *) session_key); |
| 620 | if (image == (Image *) NULL) |
| 621 | return(MagickFalse); |
| 622 | length=sizeof(region.width)+sizeof(region.height)+sizeof(region.x)+ |
| 623 | sizeof(region.y)+sizeof(length); |
| 624 | count=dpc_read(file,length,message); |
| 625 | if (count != (MagickOffsetType) length) |
| 626 | return(MagickFalse); |
| 627 | q=message; |
| 628 | (void) memcpy(®ion.width,q,sizeof(region.width)); |
| 629 | q+=sizeof(region.width); |
| 630 | (void) memcpy(®ion.height,q,sizeof(region.height)); |
| 631 | q+=sizeof(region.height); |
| 632 | (void) memcpy(®ion.x,q,sizeof(region.x)); |
| 633 | q+=sizeof(region.x); |
| 634 | (void) memcpy(®ion.y,q,sizeof(region.y)); |
| 635 | q+=sizeof(region.y); |
| 636 | (void) memcpy(&length,q,sizeof(length)); |
| 637 | q+=sizeof(length); |
| 638 | p=GetVirtualPixels(image,region.x,region.y,region.width,region.height, |
| 639 | exception); |
| 640 | if (p == (const Quantum *) NULL) |
| 641 | return(MagickFalse); |
| 642 | count=dpc_send(file,length,(unsigned char *) p); |
| 643 | if (count != (MagickOffsetType) length) |
| 644 | return(MagickFalse); |
| 645 | return(MagickTrue); |
| 646 | } |
| 647 | |
| 648 | static void *RelinquishImageRegistry(void *image) |
| 649 | { |
| 650 | return((void *) DestroyImageList((Image *) image)); |
| 651 | } |
| 652 | |
| 653 | static MagickBooleanType WriteDistributeCacheMetacontent( |
| 654 | SplayTreeInfo *registry,int file,const size_t session_key, |
| 655 | ExceptionInfo *exception) |
| 656 | { |
| 657 | Image |
| 658 | *image; |
| 659 | |
| 660 | MagickOffsetType |
| 661 | count; |
| 662 | |
| 663 | MagickSizeType |
| 664 | length; |
| 665 | |
| 666 | RectangleInfo |
| 667 | region; |
| 668 | |
| 669 | register Quantum |
| 670 | *q; |
| 671 | |
| 672 | register unsigned char |
| 673 | *p; |
| 674 | |
| 675 | unsigned char |
| 676 | message[MagickPathExtent], |
| 677 | *metacontent; |
| 678 | |
| 679 | /* |
| 680 | Write distributed pixel cache metacontent. |
| 681 | */ |
| 682 | image=(Image *) GetValueFromSplayTree(registry,(const void *) session_key); |
| 683 | if (image == (Image *) NULL) |
| 684 | return(MagickFalse); |
| 685 | length=sizeof(region.width)+sizeof(region.height)+sizeof(region.x)+ |
| 686 | sizeof(region.y)+sizeof(length); |
| 687 | count=dpc_read(file,length,message); |
| 688 | if (count != (MagickOffsetType) length) |
| 689 | return(MagickFalse); |
| 690 | p=message; |
| 691 | (void) memcpy(®ion.width,p,sizeof(region.width)); |
| 692 | p+=sizeof(region.width); |
| 693 | (void) memcpy(®ion.height,p,sizeof(region.height)); |
| 694 | p+=sizeof(region.height); |
| 695 | (void) memcpy(®ion.x,p,sizeof(region.x)); |
| 696 | p+=sizeof(region.x); |
| 697 | (void) memcpy(®ion.y,p,sizeof(region.y)); |
| 698 | p+=sizeof(region.y); |
| 699 | (void) memcpy(&length,p,sizeof(length)); |
| 700 | p+=sizeof(length); |
| 701 | q=GetAuthenticPixels(image,region.x,region.y,region.width,region.height, |
| 702 | exception); |
| 703 | if (q == (Quantum *) NULL) |
| 704 | return(MagickFalse); |
| 705 | metacontent=(unsigned char *) GetAuthenticMetacontent(image); |
| 706 | count=dpc_read(file,length,metacontent); |
| 707 | if (count != (MagickOffsetType) length) |
| 708 | return(MagickFalse); |
| 709 | return(SyncAuthenticPixels(image,exception)); |
| 710 | } |
| 711 | |
| 712 | static MagickBooleanType WriteDistributeCachePixels(SplayTreeInfo *registry, |
| 713 | int file,const size_t session_key,ExceptionInfo *exception) |
| 714 | { |
| 715 | Image |
| 716 | *image; |
| 717 | |
| 718 | MagickOffsetType |
| 719 | count; |
| 720 | |
| 721 | MagickSizeType |
| 722 | length; |
| 723 | |
| 724 | RectangleInfo |
| 725 | region; |
| 726 | |
| 727 | register Quantum |
| 728 | *q; |
| 729 | |
| 730 | register unsigned char |
| 731 | *p; |
| 732 | |
| 733 | unsigned char |
| 734 | message[MagickPathExtent]; |
| 735 | |
| 736 | /* |
| 737 | Write distributed pixel cache pixels. |
| 738 | */ |
| 739 | image=(Image *) GetValueFromSplayTree(registry,(const void *) session_key); |
| 740 | if (image == (Image *) NULL) |
| 741 | return(MagickFalse); |
| 742 | length=sizeof(region.width)+sizeof(region.height)+sizeof(region.x)+ |
| 743 | sizeof(region.y)+sizeof(length); |
| 744 | count=dpc_read(file,length,message); |
| 745 | if (count != (MagickOffsetType) length) |
| 746 | return(MagickFalse); |
| 747 | p=message; |
| 748 | (void) memcpy(®ion.width,p,sizeof(region.width)); |
| 749 | p+=sizeof(region.width); |
| 750 | (void) memcpy(®ion.height,p,sizeof(region.height)); |
| 751 | p+=sizeof(region.height); |
| 752 | (void) memcpy(®ion.x,p,sizeof(region.x)); |
| 753 | p+=sizeof(region.x); |
| 754 | (void) memcpy(®ion.y,p,sizeof(region.y)); |
| 755 | p+=sizeof(region.y); |
| 756 | (void) memcpy(&length,p,sizeof(length)); |
| 757 | p+=sizeof(length); |
| 758 | q=GetAuthenticPixels(image,region.x,region.y,region.width,region.height, |
| 759 | exception); |
| 760 | if (q == (Quantum *) NULL) |
| 761 | return(MagickFalse); |
| 762 | count=dpc_read(file,length,(unsigned char *) q); |
| 763 | if (count != (MagickOffsetType) length) |
| 764 | return(MagickFalse); |
| 765 | return(SyncAuthenticPixels(image,exception)); |
| 766 | } |
| 767 | |
| 768 | static HANDLER_RETURN_TYPE DistributePixelCacheClient(void *socket) |
| 769 | { |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 770 | char |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 771 | *shared_secret; |
| 772 | |
| 773 | ExceptionInfo |
| 774 | *exception; |
| 775 | |
| 776 | MagickBooleanType |
| 777 | status; |
| 778 | |
| 779 | MagickOffsetType |
| 780 | count; |
| 781 | |
| 782 | register unsigned char |
| 783 | *p; |
| 784 | |
| 785 | RandomInfo |
| 786 | *random_info; |
| 787 | |
| 788 | size_t |
| 789 | key, |
| 790 | session_key; |
| 791 | |
| 792 | SOCKET_TYPE |
| 793 | client_socket; |
| 794 | |
| 795 | SplayTreeInfo |
| 796 | *registry; |
| 797 | |
| 798 | StringInfo |
| 799 | *secret; |
| 800 | |
| 801 | unsigned char |
| 802 | command, |
| 803 | session[2*MagickPathExtent]; |
| 804 | |
| 805 | /* |
| 806 | Distributed pixel cache client. |
| 807 | */ |
Cristy | 2d44ac8 | 2017-03-13 08:45:31 -0400 | [diff] [blame] | 808 | shared_secret=GetPolicyValue("cache:shared-secret"); |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 809 | if (shared_secret == (char *) NULL) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 810 | ThrowFatalException(CacheFatalError,"shared secret expected"); |
| 811 | p=session; |
| 812 | (void) CopyMagickString((char *) p,shared_secret,MagickPathExtent); |
| 813 | p+=strlen(shared_secret); |
Cristy | 35fdb3f | 2016-05-19 20:40:12 -0400 | [diff] [blame] | 814 | shared_secret=DestroyString(shared_secret); |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 815 | random_info=AcquireRandomInfo(); |
| 816 | secret=GetRandomKey(random_info,DPCSessionKeyLength); |
| 817 | (void) memcpy(p,GetStringInfoDatum(secret),DPCSessionKeyLength); |
| 818 | session_key=GetMagickSignature(secret); |
| 819 | random_info=DestroyRandomInfo(random_info); |
| 820 | exception=AcquireExceptionInfo(); |
| 821 | registry=NewSplayTree((int (*)(const void *,const void *)) NULL, |
| 822 | (void *(*)(void *)) NULL,RelinquishImageRegistry); |
| 823 | client_socket=(*(SOCKET_TYPE *) socket); |
| 824 | count=dpc_send(client_socket,DPCSessionKeyLength,GetStringInfoDatum(secret)); |
| 825 | secret=DestroyStringInfo(secret); |
| 826 | for ( ; ; ) |
| 827 | { |
| 828 | count=dpc_read(client_socket,1,(unsigned char *) &command); |
| 829 | if (count <= 0) |
| 830 | break; |
| 831 | count=dpc_read(client_socket,sizeof(key),(unsigned char *) &key); |
| 832 | if ((count != (MagickOffsetType) sizeof(key)) || (key != session_key)) |
| 833 | break; |
| 834 | status=MagickFalse; |
| 835 | switch (command) |
| 836 | { |
| 837 | case 'o': |
| 838 | { |
| 839 | status=OpenDistributeCache(registry,client_socket,session_key, |
| 840 | exception); |
| 841 | count=dpc_send(client_socket,sizeof(status),(unsigned char *) &status); |
| 842 | break; |
| 843 | } |
| 844 | case 'r': |
| 845 | { |
| 846 | status=ReadDistributeCachePixels(registry,client_socket,session_key, |
| 847 | exception); |
| 848 | break; |
| 849 | } |
| 850 | case 'R': |
| 851 | { |
| 852 | status=ReadDistributeCacheMetacontent(registry,client_socket, |
| 853 | session_key,exception); |
| 854 | break; |
| 855 | } |
| 856 | case 'w': |
| 857 | { |
| 858 | status=WriteDistributeCachePixels(registry,client_socket,session_key, |
| 859 | exception); |
| 860 | break; |
| 861 | } |
| 862 | case 'W': |
| 863 | { |
| 864 | status=WriteDistributeCacheMetacontent(registry,client_socket, |
| 865 | session_key,exception); |
| 866 | break; |
| 867 | } |
| 868 | case 'd': |
| 869 | { |
| 870 | status=DestroyDistributeCache(registry,session_key); |
| 871 | break; |
| 872 | } |
| 873 | default: |
| 874 | break; |
| 875 | } |
| 876 | if (status == MagickFalse) |
| 877 | break; |
| 878 | if (command == 'd') |
| 879 | break; |
| 880 | } |
| 881 | count=dpc_send(client_socket,sizeof(status),(unsigned char *) &status); |
| 882 | CLOSE_SOCKET(client_socket); |
| 883 | exception=DestroyExceptionInfo(exception); |
| 884 | registry=DestroySplayTree(registry); |
| 885 | return(HANDLER_RETURN_VALUE); |
| 886 | } |
| 887 | |
| 888 | MagickExport void DistributePixelCacheServer(const int port, |
| 889 | ExceptionInfo *exception) |
| 890 | { |
| 891 | #if defined(MAGICKCORE_HAVE_DISTRIBUTE_CACHE) |
| 892 | char |
| 893 | service[MagickPathExtent]; |
| 894 | |
| 895 | int |
| 896 | status; |
| 897 | |
| 898 | #if defined(MAGICKCORE_THREAD_SUPPORT) |
| 899 | pthread_attr_t |
| 900 | attributes; |
| 901 | |
| 902 | pthread_t |
| 903 | threads; |
| 904 | #elif defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 905 | DWORD |
| 906 | threadID; |
| 907 | #else |
| 908 | Not implemented! |
| 909 | #endif |
| 910 | |
| 911 | register struct addrinfo |
| 912 | *p; |
| 913 | |
| 914 | SOCKET_TYPE |
| 915 | server_socket; |
| 916 | |
| 917 | struct addrinfo |
| 918 | hint, |
| 919 | *result; |
| 920 | |
| 921 | struct sockaddr_in |
| 922 | address; |
| 923 | |
| 924 | /* |
| 925 | Launch distributed pixel cache server. |
| 926 | */ |
| 927 | assert(exception != (ExceptionInfo *) NULL); |
| 928 | assert(exception->signature == MagickCoreSignature); |
| 929 | #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 930 | NTInitializeWinsock(MagickFalse); |
| 931 | #endif |
| 932 | (void) ResetMagickMemory(&hint,0,sizeof(hint)); |
| 933 | hint.ai_family=AF_INET; |
| 934 | hint.ai_socktype=SOCK_STREAM; |
| 935 | hint.ai_flags=AI_PASSIVE; |
| 936 | (void) FormatLocaleString(service,MagickPathExtent,"%d",port); |
| 937 | status=getaddrinfo((const char *) NULL,service,&hint,&result); |
| 938 | if (status != 0) |
| 939 | ThrowFatalException(CacheFatalError,"UnableToListen"); |
| 940 | server_socket=(SOCKET_TYPE) 0; |
| 941 | for (p=result; p != (struct addrinfo *) NULL; p=p->ai_next) |
| 942 | { |
| 943 | int |
| 944 | one; |
| 945 | |
| 946 | server_socket=socket(p->ai_family,p->ai_socktype,p->ai_protocol); |
| 947 | if (server_socket == -1) |
| 948 | continue; |
| 949 | one=1; |
| 950 | status=setsockopt(server_socket,SOL_SOCKET,SO_REUSEADDR, |
| 951 | CHAR_TYPE_CAST &one,(socklen_t) sizeof(one)); |
| 952 | if (status == -1) |
| 953 | { |
| 954 | CLOSE_SOCKET(server_socket); |
| 955 | continue; |
| 956 | } |
| 957 | status=bind(server_socket,p->ai_addr,(socklen_t) p->ai_addrlen); |
| 958 | if (status == -1) |
| 959 | { |
| 960 | CLOSE_SOCKET(server_socket); |
| 961 | continue; |
| 962 | } |
| 963 | break; |
| 964 | } |
| 965 | if (p == (struct addrinfo *) NULL) |
| 966 | ThrowFatalException(CacheFatalError,"UnableToBind"); |
| 967 | freeaddrinfo(result); |
| 968 | status=listen(server_socket,DPCPendingConnections); |
| 969 | if (status != 0) |
| 970 | ThrowFatalException(CacheFatalError,"UnableToListen"); |
| 971 | #if defined(MAGICKCORE_THREAD_SUPPORT) |
| 972 | pthread_attr_init(&attributes); |
| 973 | #endif |
| 974 | for ( ; ; ) |
| 975 | { |
| 976 | SOCKET_TYPE |
| 977 | client_socket; |
| 978 | |
| 979 | socklen_t |
| 980 | length; |
| 981 | |
| 982 | length=(socklen_t) sizeof(address); |
| 983 | client_socket=accept(server_socket,(struct sockaddr *) &address,&length); |
| 984 | if (client_socket == -1) |
| 985 | ThrowFatalException(CacheFatalError,"UnableToEstablishConnection"); |
| 986 | #if defined(MAGICKCORE_THREAD_SUPPORT) |
| 987 | status=pthread_create(&threads,&attributes,DistributePixelCacheClient, |
| 988 | (void *) &client_socket); |
| 989 | if (status == -1) |
| 990 | ThrowFatalException(CacheFatalError,"UnableToCreateClientThread"); |
| 991 | #elif defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 992 | if (CreateThread(0,0,DistributePixelCacheClient,(void*) &client_socket,0, |
| 993 | &threadID) == (HANDLE) NULL) |
| 994 | ThrowFatalException(CacheFatalError,"UnableToCreateClientThread"); |
| 995 | #else |
| 996 | Not implemented! |
| 997 | #endif |
| 998 | } |
| 999 | #else |
| 1000 | magick_unreferenced(port); |
| 1001 | magick_unreferenced(exception); |
| 1002 | ThrowFatalException(MissingDelegateError,"DelegateLibrarySupportNotBuiltIn"); |
| 1003 | #endif |
| 1004 | } |
| 1005 | |
| 1006 | /* |
| 1007 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1008 | % % |
| 1009 | % % |
| 1010 | % % |
| 1011 | + G e t D i s t r i b u t e C a c h e F i l e % |
| 1012 | % % |
| 1013 | % % |
| 1014 | % % |
| 1015 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1016 | % |
| 1017 | % GetDistributeCacheFile() returns the file associated with this |
| 1018 | % DistributeCacheInfo structure. |
| 1019 | % |
| 1020 | % The format of the GetDistributeCacheFile method is: |
| 1021 | % |
| 1022 | % int GetDistributeCacheFile(const DistributeCacheInfo *server_info) |
| 1023 | % |
| 1024 | % A description of each parameter follows: |
| 1025 | % |
| 1026 | % o server_info: the distributed cache info. |
| 1027 | % |
| 1028 | */ |
| 1029 | MagickPrivate int GetDistributeCacheFile(const DistributeCacheInfo *server_info) |
| 1030 | { |
| 1031 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1032 | assert(server_info->signature == MagickCoreSignature); |
| 1033 | return(server_info->file); |
| 1034 | } |
| 1035 | |
| 1036 | /* |
| 1037 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1038 | % % |
| 1039 | % % |
| 1040 | % % |
| 1041 | + G e t D i s t r i b u t e C a c h e H o s t n a m e % |
| 1042 | % % |
| 1043 | % % |
| 1044 | % % |
| 1045 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1046 | % |
| 1047 | % GetDistributeCacheHostname() returns the hostname associated with this |
| 1048 | % DistributeCacheInfo structure. |
| 1049 | % |
| 1050 | % The format of the GetDistributeCacheHostname method is: |
| 1051 | % |
| 1052 | % const char *GetDistributeCacheHostname( |
| 1053 | % const DistributeCacheInfo *server_info) |
| 1054 | % |
| 1055 | % A description of each parameter follows: |
| 1056 | % |
| 1057 | % o server_info: the distributed cache info. |
| 1058 | % |
| 1059 | */ |
| 1060 | MagickPrivate const char *GetDistributeCacheHostname( |
| 1061 | const DistributeCacheInfo *server_info) |
| 1062 | { |
| 1063 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1064 | assert(server_info->signature == MagickCoreSignature); |
| 1065 | return(server_info->hostname); |
| 1066 | } |
| 1067 | |
| 1068 | /* |
| 1069 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1070 | % % |
| 1071 | % % |
| 1072 | % % |
| 1073 | + G e t D i s t r i b u t e C a c h e P o r t % |
| 1074 | % % |
| 1075 | % % |
| 1076 | % % |
| 1077 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1078 | % |
| 1079 | % GetDistributeCachePort() returns the port associated with this |
| 1080 | % DistributeCacheInfo structure. |
| 1081 | % |
| 1082 | % The format of the GetDistributeCachePort method is: |
| 1083 | % |
| 1084 | % int GetDistributeCachePort(const DistributeCacheInfo *server_info) |
| 1085 | % |
| 1086 | % A description of each parameter follows: |
| 1087 | % |
| 1088 | % o server_info: the distributed cache info. |
| 1089 | % |
| 1090 | */ |
| 1091 | MagickPrivate int GetDistributeCachePort(const DistributeCacheInfo *server_info) |
| 1092 | { |
| 1093 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1094 | assert(server_info->signature == MagickCoreSignature); |
| 1095 | return(server_info->port); |
| 1096 | } |
| 1097 | |
| 1098 | /* |
| 1099 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1100 | % % |
| 1101 | % % |
| 1102 | % % |
| 1103 | + O p e n D i s t r i b u t e P i x e l C a c h e % |
| 1104 | % % |
| 1105 | % % |
| 1106 | % % |
| 1107 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1108 | % |
| 1109 | % OpenDistributePixelCache() opens a pixel cache on a remote server. |
| 1110 | % |
| 1111 | % The format of the OpenDistributePixelCache method is: |
| 1112 | % |
| 1113 | % MagickBooleanType *OpenDistributePixelCache( |
| 1114 | % DistributeCacheInfo *server_info,Image *image) |
| 1115 | % |
| 1116 | % A description of each parameter follows: |
| 1117 | % |
| 1118 | % o server_info: the distributed cache info. |
| 1119 | % |
| 1120 | % o image: the image. |
| 1121 | % |
| 1122 | */ |
| 1123 | MagickPrivate MagickBooleanType OpenDistributePixelCache( |
| 1124 | DistributeCacheInfo *server_info,Image *image) |
| 1125 | { |
| 1126 | MagickBooleanType |
| 1127 | #ifdef __VMS |
| 1128 | status=MagickTrue; |
| 1129 | #else |
| 1130 | status; |
| 1131 | #endif |
| 1132 | |
| 1133 | MagickOffsetType |
| 1134 | count; |
| 1135 | |
| 1136 | register unsigned char |
| 1137 | *p; |
| 1138 | |
| 1139 | unsigned char |
| 1140 | message[MagickPathExtent]; |
| 1141 | |
| 1142 | /* |
| 1143 | Open distributed pixel cache. |
| 1144 | */ |
| 1145 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1146 | assert(server_info->signature == MagickCoreSignature); |
| 1147 | assert(image != (Image *) NULL); |
| 1148 | assert(image->signature == MagickCoreSignature); |
| 1149 | p=message; |
| 1150 | *p++='o'; /* open */ |
| 1151 | /* |
| 1152 | Serialize image attributes (see ValidatePixelCacheMorphology()). |
| 1153 | */ |
| 1154 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1155 | p+=sizeof(server_info->session_key); |
| 1156 | (void) memcpy(p,&image->storage_class,sizeof(image->storage_class)); |
| 1157 | p+=sizeof(image->storage_class); |
| 1158 | (void) memcpy(p,&image->colorspace,sizeof(image->colorspace)); |
| 1159 | p+=sizeof(image->colorspace); |
| 1160 | (void) memcpy(p,&image->alpha_trait,sizeof(image->alpha_trait)); |
| 1161 | p+=sizeof(image->alpha_trait); |
| 1162 | (void) memcpy(p,&image->read_mask,sizeof(image->read_mask)); |
| 1163 | p+=sizeof(image->read_mask); |
| 1164 | (void) memcpy(p,&image->write_mask,sizeof(image->write_mask)); |
| 1165 | p+=sizeof(image->write_mask); |
| 1166 | (void) memcpy(p,&image->columns,sizeof(image->columns)); |
| 1167 | p+=sizeof(image->columns); |
| 1168 | (void) memcpy(p,&image->rows,sizeof(image->rows)); |
| 1169 | p+=sizeof(image->rows); |
| 1170 | (void) memcpy(p,&image->number_channels,sizeof(image->number_channels)); |
| 1171 | p+=sizeof(image->number_channels); |
| 1172 | (void) memcpy(p,image->channel_map,MaxPixelChannels* |
| 1173 | sizeof(*image->channel_map)); |
| 1174 | p+=MaxPixelChannels*sizeof(*image->channel_map); |
| 1175 | (void) memcpy(p,&image->metacontent_extent,sizeof(image->metacontent_extent)); |
| 1176 | p+=sizeof(image->metacontent_extent); |
| 1177 | count=dpc_send(server_info->file,p-message,message); |
| 1178 | if (count != (MagickOffsetType) (p-message)) |
| 1179 | return(MagickFalse); |
| 1180 | status=MagickFalse; |
| 1181 | count=dpc_read(server_info->file,sizeof(status),(unsigned char *) &status); |
| 1182 | if (count != (MagickOffsetType) sizeof(status)) |
| 1183 | return(MagickFalse); |
| 1184 | return(status); |
| 1185 | } |
| 1186 | |
| 1187 | /* |
| 1188 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1189 | % % |
| 1190 | % % |
| 1191 | % % |
| 1192 | + R e a d D i s t r i b u t e P i x e l C a c h e M e t a c o n t e n t % |
| 1193 | % % |
| 1194 | % % |
| 1195 | % % |
| 1196 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1197 | % |
| 1198 | % ReadDistributePixelCacheMetacontents() reads metacontent from the specified |
| 1199 | % region of the distributed pixel cache. |
| 1200 | % |
| 1201 | % The format of the ReadDistributePixelCacheMetacontents method is: |
| 1202 | % |
| 1203 | % MagickOffsetType ReadDistributePixelCacheMetacontents( |
| 1204 | % DistributeCacheInfo *server_info,const RectangleInfo *region, |
| 1205 | % const MagickSizeType length,unsigned char *metacontent) |
| 1206 | % |
| 1207 | % A description of each parameter follows: |
| 1208 | % |
| 1209 | % o server_info: the distributed cache info. |
| 1210 | % |
| 1211 | % o image: the image. |
| 1212 | % |
| 1213 | % o region: read the metacontent from this region of the image. |
| 1214 | % |
| 1215 | % o length: the length in bytes of the metacontent. |
| 1216 | % |
| 1217 | % o metacontent: read these metacontent from the pixel cache. |
| 1218 | % |
| 1219 | */ |
| 1220 | MagickPrivate MagickOffsetType ReadDistributePixelCacheMetacontent( |
| 1221 | DistributeCacheInfo *server_info,const RectangleInfo *region, |
| 1222 | const MagickSizeType length,unsigned char *metacontent) |
| 1223 | { |
| 1224 | MagickOffsetType |
| 1225 | count; |
| 1226 | |
| 1227 | register unsigned char |
| 1228 | *p; |
| 1229 | |
| 1230 | unsigned char |
| 1231 | message[MagickPathExtent]; |
| 1232 | |
| 1233 | /* |
| 1234 | Read distributed pixel cache metacontent. |
| 1235 | */ |
| 1236 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1237 | assert(server_info->signature == MagickCoreSignature); |
| 1238 | assert(region != (RectangleInfo *) NULL); |
| 1239 | assert(metacontent != (unsigned char *) NULL); |
| 1240 | if (length > (MagickSizeType) SSIZE_MAX) |
| 1241 | return(-1); |
| 1242 | p=message; |
| 1243 | *p++='R'; |
| 1244 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1245 | p+=sizeof(server_info->session_key); |
| 1246 | (void) memcpy(p,®ion->width,sizeof(region->width)); |
| 1247 | p+=sizeof(region->width); |
| 1248 | (void) memcpy(p,®ion->height,sizeof(region->height)); |
| 1249 | p+=sizeof(region->height); |
| 1250 | (void) memcpy(p,®ion->x,sizeof(region->x)); |
| 1251 | p+=sizeof(region->x); |
| 1252 | (void) memcpy(p,®ion->y,sizeof(region->y)); |
| 1253 | p+=sizeof(region->y); |
| 1254 | (void) memcpy(p,&length,sizeof(length)); |
| 1255 | p+=sizeof(length); |
| 1256 | count=dpc_send(server_info->file,p-message,message); |
| 1257 | if (count != (MagickOffsetType) (p-message)) |
| 1258 | return(-1); |
| 1259 | return(dpc_read(server_info->file,length,metacontent)); |
| 1260 | } |
| 1261 | |
| 1262 | /* |
| 1263 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1264 | % % |
| 1265 | % % |
| 1266 | % % |
| 1267 | + R e a d D i s t r i b u t e P i x e l C a c h e P i x e l s % |
| 1268 | % % |
| 1269 | % % |
| 1270 | % % |
| 1271 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1272 | % |
| 1273 | % ReadDistributePixelCachePixels() reads pixels from the specified region of |
| 1274 | % the distributed pixel cache. |
| 1275 | % |
| 1276 | % The format of the ReadDistributePixelCachePixels method is: |
| 1277 | % |
| 1278 | % MagickOffsetType ReadDistributePixelCachePixels( |
| 1279 | % DistributeCacheInfo *server_info,const RectangleInfo *region, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 1280 | % const MagickSizeType length,unsigned char *magick_restrict pixels) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 1281 | % |
| 1282 | % A description of each parameter follows: |
| 1283 | % |
| 1284 | % o server_info: the distributed cache info. |
| 1285 | % |
| 1286 | % o image: the image. |
| 1287 | % |
| 1288 | % o region: read the pixels from this region of the image. |
| 1289 | % |
| 1290 | % o length: the length in bytes of the pixels. |
| 1291 | % |
| 1292 | % o pixels: read these pixels from the pixel cache. |
| 1293 | % |
| 1294 | */ |
| 1295 | MagickPrivate MagickOffsetType ReadDistributePixelCachePixels( |
| 1296 | DistributeCacheInfo *server_info,const RectangleInfo *region, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 1297 | const MagickSizeType length,unsigned char *magick_restrict pixels) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 1298 | { |
| 1299 | MagickOffsetType |
| 1300 | count; |
| 1301 | |
| 1302 | register unsigned char |
| 1303 | *p; |
| 1304 | |
| 1305 | unsigned char |
| 1306 | message[MagickPathExtent]; |
| 1307 | |
| 1308 | /* |
| 1309 | Read distributed pixel cache pixels. |
| 1310 | */ |
| 1311 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1312 | assert(server_info->signature == MagickCoreSignature); |
| 1313 | assert(region != (RectangleInfo *) NULL); |
| 1314 | assert(pixels != (unsigned char *) NULL); |
| 1315 | if (length > (MagickSizeType) SSIZE_MAX) |
| 1316 | return(-1); |
| 1317 | p=message; |
| 1318 | *p++='r'; |
| 1319 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1320 | p+=sizeof(server_info->session_key); |
| 1321 | (void) memcpy(p,®ion->width,sizeof(region->width)); |
| 1322 | p+=sizeof(region->width); |
| 1323 | (void) memcpy(p,®ion->height,sizeof(region->height)); |
| 1324 | p+=sizeof(region->height); |
| 1325 | (void) memcpy(p,®ion->x,sizeof(region->x)); |
| 1326 | p+=sizeof(region->x); |
| 1327 | (void) memcpy(p,®ion->y,sizeof(region->y)); |
| 1328 | p+=sizeof(region->y); |
| 1329 | (void) memcpy(p,&length,sizeof(length)); |
| 1330 | p+=sizeof(length); |
| 1331 | count=dpc_send(server_info->file,p-message,message); |
| 1332 | if (count != (MagickOffsetType) (p-message)) |
| 1333 | return(-1); |
| 1334 | return(dpc_read(server_info->file,length,pixels)); |
| 1335 | } |
| 1336 | |
| 1337 | /* |
| 1338 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1339 | % % |
| 1340 | % % |
| 1341 | % % |
| 1342 | + R e l i n q u i s h D i s t r i b u t e P i x e l C a c h e % |
| 1343 | % % |
| 1344 | % % |
| 1345 | % % |
| 1346 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1347 | % |
| 1348 | % RelinquishDistributePixelCache() frees resources acquired with |
| 1349 | % OpenDistributePixelCache(). |
| 1350 | % |
| 1351 | % The format of the RelinquishDistributePixelCache method is: |
| 1352 | % |
| 1353 | % MagickBooleanType RelinquishDistributePixelCache( |
| 1354 | % DistributeCacheInfo *server_info) |
| 1355 | % |
| 1356 | % A description of each parameter follows: |
| 1357 | % |
| 1358 | % o server_info: the distributed cache info. |
| 1359 | % |
| 1360 | */ |
| 1361 | MagickPrivate MagickBooleanType RelinquishDistributePixelCache( |
| 1362 | DistributeCacheInfo *server_info) |
| 1363 | { |
| 1364 | MagickBooleanType |
| 1365 | #ifdef __VMS |
| 1366 | status = MagickTrue; |
| 1367 | #else |
| 1368 | status; |
| 1369 | #endif |
| 1370 | |
| 1371 | MagickOffsetType |
| 1372 | count; |
| 1373 | |
| 1374 | register unsigned char |
| 1375 | *p; |
| 1376 | |
| 1377 | unsigned char |
| 1378 | message[MagickPathExtent]; |
| 1379 | |
| 1380 | /* |
| 1381 | Delete distributed pixel cache. |
| 1382 | */ |
| 1383 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1384 | assert(server_info->signature == MagickCoreSignature); |
| 1385 | p=message; |
| 1386 | *p++='d'; |
| 1387 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1388 | p+=sizeof(server_info->session_key); |
| 1389 | count=dpc_send(server_info->file,p-message,message); |
| 1390 | if (count != (MagickOffsetType) (p-message)) |
| 1391 | return(MagickFalse); |
| 1392 | count=dpc_read(server_info->file,sizeof(status),(unsigned char *) &status); |
| 1393 | if (count != (MagickOffsetType) sizeof(status)) |
| 1394 | return(MagickFalse); |
| 1395 | return(status); |
| 1396 | } |
| 1397 | |
| 1398 | /* |
| 1399 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1400 | % % |
| 1401 | % % |
| 1402 | % % |
| 1403 | + W r i t e D i s t r i b u t e P i x e l C a c h e M e t a c o n t e n t % |
| 1404 | % % |
| 1405 | % % |
| 1406 | % % |
| 1407 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1408 | % |
| 1409 | % WriteDistributePixelCacheMetacontents() writes image metacontent to the |
| 1410 | % specified region of the distributed pixel cache. |
| 1411 | % |
| 1412 | % The format of the WriteDistributePixelCacheMetacontents method is: |
| 1413 | % |
| 1414 | % MagickOffsetType WriteDistributePixelCacheMetacontents( |
| 1415 | % DistributeCacheInfo *server_info,const RectangleInfo *region, |
| 1416 | % const MagickSizeType length,const unsigned char *metacontent) |
| 1417 | % |
| 1418 | % A description of each parameter follows: |
| 1419 | % |
| 1420 | % o server_info: the distributed cache info. |
| 1421 | % |
| 1422 | % o image: the image. |
| 1423 | % |
| 1424 | % o region: write the metacontent to this region of the image. |
| 1425 | % |
| 1426 | % o length: the length in bytes of the metacontent. |
| 1427 | % |
| 1428 | % o metacontent: write these metacontent to the pixel cache. |
| 1429 | % |
| 1430 | */ |
| 1431 | MagickPrivate MagickOffsetType WriteDistributePixelCacheMetacontent( |
| 1432 | DistributeCacheInfo *server_info,const RectangleInfo *region, |
| 1433 | const MagickSizeType length,const unsigned char *metacontent) |
| 1434 | { |
| 1435 | MagickOffsetType |
| 1436 | count; |
| 1437 | |
| 1438 | register unsigned char |
| 1439 | *p; |
| 1440 | |
| 1441 | unsigned char |
| 1442 | message[MagickPathExtent]; |
| 1443 | |
| 1444 | /* |
| 1445 | Write distributed pixel cache metacontent. |
| 1446 | */ |
| 1447 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1448 | assert(server_info->signature == MagickCoreSignature); |
| 1449 | assert(region != (RectangleInfo *) NULL); |
| 1450 | assert(metacontent != (unsigned char *) NULL); |
| 1451 | if (length > (MagickSizeType) SSIZE_MAX) |
| 1452 | return(-1); |
| 1453 | p=message; |
| 1454 | *p++='W'; |
| 1455 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1456 | p+=sizeof(server_info->session_key); |
| 1457 | (void) memcpy(p,®ion->width,sizeof(region->width)); |
| 1458 | p+=sizeof(region->width); |
| 1459 | (void) memcpy(p,®ion->height,sizeof(region->height)); |
| 1460 | p+=sizeof(region->height); |
| 1461 | (void) memcpy(p,®ion->x,sizeof(region->x)); |
| 1462 | p+=sizeof(region->x); |
| 1463 | (void) memcpy(p,®ion->y,sizeof(region->y)); |
| 1464 | p+=sizeof(region->y); |
| 1465 | (void) memcpy(p,&length,sizeof(length)); |
| 1466 | p+=sizeof(length); |
| 1467 | count=dpc_send(server_info->file,p-message,message); |
| 1468 | if (count != (MagickOffsetType) (p-message)) |
| 1469 | return(-1); |
| 1470 | return(dpc_send(server_info->file,length,metacontent)); |
| 1471 | } |
| 1472 | |
| 1473 | /* |
| 1474 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1475 | % % |
| 1476 | % % |
| 1477 | % % |
| 1478 | + W r i t e D i s t r i b u t e P i x e l C a c h e P i x e l s % |
| 1479 | % % |
| 1480 | % % |
| 1481 | % % |
| 1482 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1483 | % |
| 1484 | % WriteDistributePixelCachePixels() writes image pixels to the specified |
| 1485 | % region of the distributed pixel cache. |
| 1486 | % |
| 1487 | % The format of the WriteDistributePixelCachePixels method is: |
| 1488 | % |
| 1489 | % MagickBooleanType WriteDistributePixelCachePixels( |
| 1490 | % DistributeCacheInfo *server_info,const RectangleInfo *region, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 1491 | % const MagickSizeType length, |
| 1492 | % const unsigned char *magick_restrict pixels) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 1493 | % |
| 1494 | % A description of each parameter follows: |
| 1495 | % |
| 1496 | % o server_info: the distributed cache info. |
| 1497 | % |
| 1498 | % o image: the image. |
| 1499 | % |
| 1500 | % o region: write the pixels to this region of the image. |
| 1501 | % |
| 1502 | % o length: the length in bytes of the pixels. |
| 1503 | % |
| 1504 | % o pixels: write these pixels to the pixel cache. |
| 1505 | % |
| 1506 | */ |
| 1507 | MagickPrivate MagickOffsetType WriteDistributePixelCachePixels( |
| 1508 | DistributeCacheInfo *server_info,const RectangleInfo *region, |
dirk | 05d2ff7 | 2015-11-18 23:13:43 +0100 | [diff] [blame] | 1509 | const MagickSizeType length,const unsigned char *magick_restrict pixels) |
Cristy | 9125cd5 | 2015-09-17 20:16:13 -0400 | [diff] [blame] | 1510 | { |
| 1511 | MagickOffsetType |
| 1512 | count; |
| 1513 | |
| 1514 | register unsigned char |
| 1515 | *p; |
| 1516 | |
| 1517 | unsigned char |
| 1518 | message[MagickPathExtent]; |
| 1519 | |
| 1520 | /* |
| 1521 | Write distributed pixel cache pixels. |
| 1522 | */ |
| 1523 | assert(server_info != (DistributeCacheInfo *) NULL); |
| 1524 | assert(server_info->signature == MagickCoreSignature); |
| 1525 | assert(region != (RectangleInfo *) NULL); |
| 1526 | assert(pixels != (const unsigned char *) NULL); |
| 1527 | if (length > (MagickSizeType) SSIZE_MAX) |
| 1528 | return(-1); |
| 1529 | p=message; |
| 1530 | *p++='w'; |
| 1531 | (void) memcpy(p,&server_info->session_key,sizeof(server_info->session_key)); |
| 1532 | p+=sizeof(server_info->session_key); |
| 1533 | (void) memcpy(p,®ion->width,sizeof(region->width)); |
| 1534 | p+=sizeof(region->width); |
| 1535 | (void) memcpy(p,®ion->height,sizeof(region->height)); |
| 1536 | p+=sizeof(region->height); |
| 1537 | (void) memcpy(p,®ion->x,sizeof(region->x)); |
| 1538 | p+=sizeof(region->x); |
| 1539 | (void) memcpy(p,®ion->y,sizeof(region->y)); |
| 1540 | p+=sizeof(region->y); |
| 1541 | (void) memcpy(p,&length,sizeof(length)); |
| 1542 | p+=sizeof(length); |
| 1543 | count=dpc_send(server_info->file,p-message,message); |
| 1544 | if (count != (MagickOffsetType) (p-message)) |
| 1545 | return(-1); |
| 1546 | return(dpc_send(server_info->file,length,pixels)); |
| 1547 | } |