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Fix windows build (this is now used from the java library)
[simgrid.git] / src / simix / smx_io.c
1 /* Copyright (c) 2007-2010, 2012-2014. The SimGrid Team.
2  * All rights reserved.                                                     */
3
4 /* This program is free software; you can redistribute it and/or modify it
5  * under the terms of the license (GNU LGPL) which comes with this package. */
6
7 #include "smx_private.h"
8 //#include "surf/storage_private.h"
9 #include "xbt/sysdep.h"
10 #include "xbt/log.h"
11 #include "xbt/dict.h"
12 #include "mc/mc.h"
13
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix,
15                                 "Logging specific to SIMIX (io)");
16
17
18 /**
19  * \brief Internal function to create a SIMIX storage.
20  * \param name name of the storage to create
21  * \param storage the SURF storage to encapsulate
22  * \param data some user data (may be NULL)
23  */
24 smx_storage_t SIMIX_storage_create(const char *name, void *storage, void *data)
25 {
26   smx_storage_priv_t smx_storage = xbt_new0(s_smx_storage_priv_t, 1);
27
28   smx_storage->data = data;
29
30   /* Update global variables */
31   xbt_lib_set(storage_lib,name,SIMIX_STORAGE_LEVEL,smx_storage);
32   return xbt_lib_get_elm_or_null(storage_lib, name);
33 }
34
35 /**
36  * \brief Internal function to destroy a SIMIX storage.
37  *
38  * \param s the host to destroy (a smx_storage_t)
39  */
40 void SIMIX_storage_destroy(void *s)
41 {
42   smx_storage_priv_t storage = (smx_storage_priv_t) s;
43
44   xbt_assert((storage != NULL), "Invalid parameters");
45   if (storage->data)
46     free(storage->data);
47
48   /* Clean storage structure */
49   free(storage);
50 }
51
52 //SIMIX FILE READ
53 void simcall_HANDLER_file_read(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, smx_host_t host)
54 {
55   smx_synchro_t synchro = SIMIX_file_read(fd, size, host);
56   xbt_fifo_push(synchro->simcalls, simcall);
57   simcall->issuer->waiting_synchro = synchro;
58 }
59
60 smx_synchro_t SIMIX_file_read(smx_file_t fd, sg_size_t size, smx_host_t host)
61 {
62   smx_synchro_t synchro;
63
64   /* check if the host is active */
65   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
66     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
67            sg_host_name(host));
68   }
69
70   synchro = xbt_mallocator_get(simix_global->synchro_mallocator);
71   synchro->type = SIMIX_SYNC_IO;
72   synchro->name = NULL;
73 #ifdef HAVE_TRACING
74   synchro->category = NULL;
75 #endif
76
77   synchro->io.host = host;
78   synchro->io.surf_io = surf_workstation_read(host, fd->surf_file, size);
79
80   surf_action_set_data(synchro->io.surf_io, synchro);
81   XBT_DEBUG("Create io synchro %p", synchro);
82
83   return synchro;
84 }
85
86 //SIMIX FILE WRITE
87 void simcall_HANDLER_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, smx_host_t host)
88 {
89   smx_synchro_t synchro = SIMIX_file_write(fd,  size, host);
90   xbt_fifo_push(synchro->simcalls, simcall);
91   simcall->issuer->waiting_synchro = synchro;
92 }
93
94 smx_synchro_t SIMIX_file_write(smx_file_t fd, sg_size_t size, smx_host_t host)
95 {
96   smx_synchro_t synchro;
97
98   /* check if the host is active */
99   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
100     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
101            sg_host_name(host));
102   }
103
104   synchro = xbt_mallocator_get(simix_global->synchro_mallocator);
105   synchro->type = SIMIX_SYNC_IO;
106   synchro->name = NULL;
107 #ifdef HAVE_TRACING
108   synchro->category = NULL;
109 #endif
110
111   synchro->io.host = host;
112   synchro->io.surf_io = surf_workstation_write(host, fd->surf_file, size);
113
114   surf_action_set_data(synchro->io.surf_io, synchro);
115   XBT_DEBUG("Create io synchro %p", synchro);
116
117   return synchro;
118 }
119
120 //SIMIX FILE OPEN
121 void simcall_HANDLER_file_open(smx_simcall_t simcall, const char* fullpath, smx_host_t host)
122 {
123   smx_synchro_t synchro = SIMIX_file_open(fullpath, host);
124   xbt_fifo_push(synchro->simcalls, simcall);
125   simcall->issuer->waiting_synchro = synchro;
126 }
127
128 smx_synchro_t SIMIX_file_open(const char* fullpath, smx_host_t host)
129 {
130   smx_synchro_t synchro;
131
132   /* check if the host is active */
133   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
134     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
135            sg_host_name(host));
136   }
137
138   synchro = xbt_mallocator_get(simix_global->synchro_mallocator);
139   synchro->type = SIMIX_SYNC_IO;
140   synchro->name = NULL;
141 #ifdef HAVE_TRACING
142   synchro->category = NULL;
143 #endif
144
145   synchro->io.host = host;
146   synchro->io.surf_io = surf_workstation_open(host, fullpath);
147
148   surf_action_set_data(synchro->io.surf_io, synchro);
149   XBT_DEBUG("Create io synchro %p", synchro);
150
151   return synchro;
152 }
153
154 //SIMIX FILE CLOSE
155 void simcall_HANDLER_file_close(smx_simcall_t simcall, smx_file_t fd, smx_host_t host)
156 {
157   smx_synchro_t synchro = SIMIX_file_close(fd, host);
158   xbt_fifo_push(synchro->simcalls, simcall);
159   simcall->issuer->waiting_synchro = synchro;
160 }
161
162 smx_synchro_t SIMIX_file_close(smx_file_t fd, smx_host_t host)
163 {
164   smx_synchro_t synchro;
165
166   /* check if the host is active */
167   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
168     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
169            sg_host_name(host));
170   }
171
172   synchro = xbt_mallocator_get(simix_global->synchro_mallocator);
173   synchro->type = SIMIX_SYNC_IO;
174   synchro->name = NULL;
175 #ifdef HAVE_TRACING
176   synchro->category = NULL;
177 #endif
178
179   synchro->io.host = host;
180   synchro->io.surf_io = surf_workstation_close(host, fd->surf_file);
181
182   surf_action_set_data(synchro->io.surf_io, synchro);
183   XBT_DEBUG("Create io synchro %p", synchro);
184
185   return synchro;
186 }
187
188
189 //SIMIX FILE UNLINK
190 int SIMIX_file_unlink(smx_file_t fd, smx_host_t host)
191 {
192   /* check if the host is active */
193   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
194     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
195            sg_host_name(host));
196   }
197
198   int res = surf_workstation_unlink(host, fd->surf_file);
199   xbt_free(fd);
200   return !!res;
201 }
202
203 sg_size_t simcall_HANDLER_file_get_size(smx_simcall_t simcall, smx_file_t fd)
204 {
205   return SIMIX_file_get_size(simcall->issuer, fd);
206 }
207
208 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
209 {
210   smx_host_t host = process->smx_host;
211   return  surf_workstation_get_size(host, fd->surf_file);
212 }
213
214 sg_size_t simcall_HANDLER_file_tell(smx_simcall_t simcall, smx_file_t fd)
215 {
216   return SIMIX_file_tell(simcall->issuer, fd);
217 }
218
219 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
220 {
221   smx_host_t host = process->smx_host;
222   return  surf_workstation_file_tell(host, fd->surf_file);
223 }
224
225
226 xbt_dynar_t simcall_HANDLER_file_get_info(smx_simcall_t simcall, smx_file_t fd)
227 {
228   return SIMIX_file_get_info(simcall->issuer, fd);
229 }
230
231 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
232 {
233   smx_host_t host = process->smx_host;
234   return  surf_workstation_get_info(host, fd->surf_file);
235 }
236
237 int simcall_HANDLER_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_offset_t offset, int origin)
238 {
239   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
240 }
241
242 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_offset_t offset, int origin)
243 {
244   smx_host_t host = process->smx_host;
245   return  surf_workstation_file_seek(host, fd->surf_file, offset, origin);
246 }
247
248 int simcall_HANDLER_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
249 {
250   return SIMIX_file_move(simcall->issuer, file, fullpath);
251 }
252
253 int SIMIX_file_move(smx_process_t process, smx_file_t file, const char* fullpath)
254 {
255   smx_host_t host = process->smx_host;
256   return  surf_workstation_file_move(host, file->surf_file, fullpath);
257 }
258
259 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
260   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
261   return surf_storage_get_size(storage);
262 }
263
264 sg_size_t simcall_HANDLER_storage_get_free_size(smx_simcall_t simcall, smx_storage_t storage)
265 {
266   return SIMIX_storage_get_free_size(simcall->issuer, storage);
267 }
268
269 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, smx_storage_t storage)
270 {
271   return  surf_storage_get_free_size(storage);
272 }
273
274 sg_size_t simcall_HANDLER_storage_get_used_size(smx_simcall_t simcall, smx_storage_t storage)
275 {
276   return SIMIX_storage_get_used_size(simcall->issuer, storage);
277 }
278
279 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, smx_storage_t storage)
280 {
281   return  surf_storage_get_used_size(storage);
282 }
283
284 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
285   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
286   return surf_resource_get_properties(surf_storage_resource_priv(storage));
287 }
288
289 const char* SIMIX_storage_get_name(smx_storage_t storage){
290   xbt_assert((storage != NULL), "Invalid parameters");
291   return sg_storage_name(storage);
292 }
293
294 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
295   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
296   return surf_storage_get_content(storage);
297 }
298
299 const char* SIMIX_storage_get_host(smx_storage_t storage){
300   xbt_assert((storage != NULL), "Invalid parameters");
301   return surf_storage_get_host(storage);
302 }
303
304 void SIMIX_post_io(smx_synchro_t synchro)
305 {
306   xbt_fifo_item_t i;
307   smx_simcall_t simcall;
308
309   xbt_fifo_foreach(synchro->simcalls,i,simcall,smx_simcall_t) {
310     switch (simcall->call) {
311     case SIMCALL_FILE_OPEN: {
312       smx_file_t tmp = xbt_new(s_smx_file_t,1);
313       tmp->surf_file = surf_storage_action_get_file(synchro->io.surf_io);
314       simcall_file_open__set__result(simcall, tmp);
315       break;
316     }
317     case SIMCALL_FILE_CLOSE:
318       xbt_free(simcall_file_close__get__fd(simcall));
319       simcall_file_close__set__result(simcall, 0);
320       break;
321     case SIMCALL_FILE_WRITE:
322       simcall_file_write__set__result(simcall, surf_action_get_cost(synchro->io.surf_io));
323       break;
324
325     case SIMCALL_FILE_READ:
326       simcall_file_read__set__result(simcall, surf_action_get_cost(synchro->io.surf_io));
327       break;
328
329     default:
330       break;
331     }
332   }
333
334   switch (surf_action_get_state(synchro->io.surf_io)) {
335
336     case SURF_ACTION_FAILED:
337       synchro->state = SIMIX_FAILED;
338       break;
339
340     case SURF_ACTION_DONE:
341       synchro->state = SIMIX_DONE;
342       break;
343
344     default:
345       THROW_IMPOSSIBLE;
346       break;
347   }
348
349   SIMIX_io_finish(synchro);
350 }
351
352 void SIMIX_io_destroy(smx_synchro_t synchro)
353 {
354   XBT_DEBUG("Destroy synchro %p", synchro);
355   if (synchro->io.surf_io)
356     surf_action_unref(synchro->io.surf_io);
357   xbt_mallocator_release(simix_global->synchro_mallocator, synchro);
358 }
359
360 void SIMIX_io_finish(smx_synchro_t synchro)
361 {
362   xbt_fifo_item_t item;
363   smx_simcall_t simcall;
364
365   xbt_fifo_foreach(synchro->simcalls, item, simcall, smx_simcall_t) {
366
367     switch (synchro->state) {
368
369       case SIMIX_DONE:
370         /* do nothing, synchro done */
371         break;
372
373       case SIMIX_FAILED:
374         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
375         break;
376
377       case SIMIX_CANCELED:
378         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
379         break;
380
381       default:
382         xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d",
383             (int)synchro->state);
384     }
385
386     if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
387       simcall->issuer->context->iwannadie = 1;
388     }
389
390     simcall->issuer->waiting_synchro = NULL;
391     SIMIX_simcall_answer(simcall);
392   }
393
394   /* We no longer need it */
395   SIMIX_io_destroy(synchro);
396 }