1 /* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "smx_private.h"
8 #include "xbt/sysdep.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix,
14 "Logging specific to SIMIX (io)");
18 void SIMIX_pre_file_read(smx_simcall_t simcall)
20 smx_action_t action = SIMIX_file_read(simcall->issuer,
21 simcall->file_read.ptr,
22 simcall->file_read.size,
23 simcall->file_read.nmemb,
24 simcall->file_read.stream);
25 xbt_fifo_push(action->simcalls, simcall);
26 simcall->issuer->waiting_action = action;
29 smx_action_t SIMIX_file_read(smx_process_t process, void* ptr, size_t size, size_t nmemb, smx_file_t stream)
32 smx_host_t host = process->smx_host;
34 /* check if the host is active */
35 if (surf_workstation_model->extension.
36 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
37 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
41 action = xbt_mallocator_get(simix_global->action_mallocator);
42 action->type = SIMIX_ACTION_IO;
45 action->category = NULL;
48 action->io.host = host;
49 action->io.surf_io = surf_workstation_model->extension.workstation.read(host->host, ptr, size, nmemb, stream->surf_file);
51 surf_workstation_model->action_data_set(action->io.surf_io, action);
52 XBT_DEBUG("Create io action %p", action);
58 void SIMIX_pre_file_write(smx_simcall_t simcall)
60 smx_action_t action = SIMIX_file_write(simcall->issuer,
61 simcall->file_write.ptr,
62 simcall->file_write.size,
63 simcall->file_write.nmemb,
64 simcall->file_write.stream);
65 xbt_fifo_push(action->simcalls, simcall);
66 simcall->issuer->waiting_action = action;
69 smx_action_t SIMIX_file_write(smx_process_t process, const void* ptr, size_t size, size_t nmemb, smx_file_t stream)
72 smx_host_t host = process->smx_host;
74 /* check if the host is active */
75 if (surf_workstation_model->extension.
76 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
77 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
81 action = xbt_mallocator_get(simix_global->action_mallocator);
82 action->type = SIMIX_ACTION_IO;
85 action->category = NULL;
88 action->io.host = host;
89 action->io.surf_io = surf_workstation_model->extension.workstation.write(host->host, ptr, size, nmemb, stream->surf_file);
91 surf_workstation_model->action_data_set(action->io.surf_io, action);
92 XBT_DEBUG("Create io action %p", action);
98 void SIMIX_pre_file_open(smx_simcall_t simcall)
100 smx_action_t action = SIMIX_file_open(simcall->issuer,
101 simcall->file_open.mount,
102 simcall->file_open.path,
103 simcall->file_open.mode);
104 xbt_fifo_push(action->simcalls, simcall);
105 simcall->issuer->waiting_action = action;
108 smx_action_t SIMIX_file_open(smx_process_t process ,const char* mount, const char* path, const char* mode)
111 smx_host_t host = process->smx_host;
113 /* check if the host is active */
114 if (surf_workstation_model->extension.
115 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
116 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
120 action = xbt_mallocator_get(simix_global->action_mallocator);
121 action->type = SIMIX_ACTION_IO;
124 action->category = NULL;
127 action->io.host = host;
128 action->io.surf_io = surf_workstation_model->extension.workstation.open(host->host, mount, path, mode);
130 surf_workstation_model->action_data_set(action->io.surf_io, action);
131 XBT_DEBUG("Create io action %p", action);
137 void SIMIX_pre_file_close(smx_simcall_t simcall)
139 smx_action_t action = SIMIX_file_close(simcall->issuer,
140 simcall->file_close.fp);
141 xbt_fifo_push(action->simcalls, simcall);
142 simcall->issuer->waiting_action = action;
145 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fp)
148 smx_host_t host = process->smx_host;
150 /* check if the host is active */
151 if (surf_workstation_model->extension.
152 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
153 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
157 action = xbt_mallocator_get(simix_global->action_mallocator);
158 action->type = SIMIX_ACTION_IO;
161 action->category = NULL;
164 action->io.host = host;
165 action->io.surf_io = surf_workstation_model->extension.workstation.close(host->host, fp->surf_file);
167 surf_workstation_model->action_data_set(action->io.surf_io, action);
168 XBT_DEBUG("Create io action %p", action);
174 void SIMIX_pre_file_stat(smx_simcall_t simcall)
176 smx_action_t action = SIMIX_file_stat(simcall->issuer,
177 simcall->file_stat.fd,
178 simcall->file_stat.buf);
179 xbt_fifo_push(action->simcalls, simcall);
180 simcall->issuer->waiting_action = action;
183 smx_action_t SIMIX_file_stat(smx_process_t process, smx_file_t fd, s_file_stat_t buf)
186 smx_host_t host = process->smx_host;
187 /* check if the host is active */
188 if (surf_workstation_model->extension.
189 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
190 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
194 action = xbt_mallocator_get(simix_global->action_mallocator);
195 action->type = SIMIX_ACTION_IO;
198 action->category = NULL;
201 action->io.host = host;
202 action->io.surf_io = surf_workstation_model->extension.workstation.stat(host->host, fd->surf_file);
204 surf_workstation_model->action_data_set(action->io.surf_io, action);
205 XBT_DEBUG("Create io action %p", action);
211 void SIMIX_pre_file_unlink(smx_simcall_t simcall)
213 smx_action_t action = SIMIX_file_unlink(simcall->issuer,
214 simcall->file_unlink.fd);
215 xbt_fifo_push(action->simcalls, simcall);
216 simcall->issuer->waiting_action = action;
219 smx_action_t SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
222 smx_host_t host = process->smx_host;
223 /* check if the host is active */
224 if (surf_workstation_model->extension.
225 workstation.get_state(host->host) != SURF_RESOURCE_ON) {
226 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
230 action = xbt_mallocator_get(simix_global->action_mallocator);
231 action->type = SIMIX_ACTION_IO;
234 action->category = NULL;
237 action->io.host = host;
238 action->io.surf_io = surf_workstation_model->extension.workstation.unlink(host->host, fd->surf_file);
240 surf_workstation_model->action_data_set(action->io.surf_io, action);
241 XBT_DEBUG("Create io action %p", action);
247 void SIMIX_pre_file_ls(smx_simcall_t simcall)
249 smx_action_t action = SIMIX_file_ls(simcall->issuer,
250 simcall->file_ls.mount, simcall->file_ls.path);
251 xbt_fifo_push(action->simcalls, simcall);
252 simcall->issuer->waiting_action = action;
254 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
257 smx_host_t host = process->smx_host;
258 /* check if the host is active */
259 if (surf_workstation_model->extension.workstation.get_state(host->host) != SURF_RESOURCE_ON) {
260 THROWF(host_error, 0, "Host %s failed, you cannot call this function",
264 action = xbt_mallocator_get(simix_global->action_mallocator);
265 action->type = SIMIX_ACTION_IO;
268 action->category = NULL;
271 action->io.host = host;
272 action->io.surf_io = surf_workstation_model->extension.workstation.ls(host->host,mount,path);
274 surf_workstation_model->action_data_set(action->io.surf_io, action);
275 XBT_DEBUG("Create io action %p", action);
279 static void free_file_stat(void *p)
286 xbt_free(fs->user_rights);
290 void SIMIX_post_io(smx_action_t action)
293 smx_simcall_t simcall;
295 xbt_dict_cursor_t cursor = NULL;
296 s_file_stat_t *dst = NULL;
297 s_file_stat_t *src = NULL;
299 xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
300 switch (simcall->call) {
301 case SIMCALL_FILE_OPEN:
302 simcall->file_open.result = xbt_new(s_smx_file_t,1);
303 simcall->file_open.result->surf_file = (action->io.surf_io)->file;
306 case SIMCALL_FILE_CLOSE:
307 xbt_free(simcall->file_close.fp);
308 simcall->file_close.result = 0;
311 case SIMCALL_FILE_WRITE:
312 simcall->file_write.result = (action->io.surf_io)->cost;
315 case SIMCALL_FILE_READ:
316 simcall->file_read.result = (action->io.surf_io)->cost;
319 case SIMCALL_FILE_STAT:
320 simcall->file_stat.result = 0;
321 dst = &(simcall->file_stat.buf);
322 src = &((action->io.surf_io)->stat);
323 file_stat_copy(src,dst);
326 case SIMCALL_FILE_UNLINK:
327 xbt_free(simcall->file_unlink.fd);
328 simcall->file_unlink.result = 0;
331 case SIMCALL_FILE_LS:
332 xbt_dict_foreach((action->io.surf_io)->ls_dict,cursor,key, src){
333 // if there is a stat we have to duplicate it
335 dst = xbt_new0(s_file_stat_t,1);
336 file_stat_copy(src, dst);
337 xbt_dict_set((action->io.surf_io)->ls_dict,key,dst,free_file_stat);
340 simcall->file_ls.result = (action->io.surf_io)->ls_dict;
348 switch (surf_workstation_model->action_state_get(action->io.surf_io)) {
350 case SURF_ACTION_FAILED:
351 action->state = SIMIX_FAILED;
354 case SURF_ACTION_DONE:
355 action->state = SIMIX_DONE;
363 SIMIX_io_finish(action);
366 void SIMIX_io_destroy(smx_action_t action)
368 XBT_DEBUG("Destroy action %p", action);
369 if (action->io.surf_io)
370 action->io.surf_io->model_type->action_unref(action->io.surf_io);
371 xbt_mallocator_release(simix_global->action_mallocator, action);
374 void SIMIX_io_finish(smx_action_t action)
376 xbt_fifo_item_t item;
377 smx_simcall_t simcall;
379 xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
381 switch (action->state) {
384 /* do nothing, action done */
388 SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
392 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
396 xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
400 if (surf_workstation_model->extension.
401 workstation.get_state(simcall->issuer->smx_host->host) != SURF_RESOURCE_ON) {
402 simcall->issuer->context->iwannadie = 1;
405 simcall->issuer->waiting_action = NULL;
406 SIMIX_simcall_answer(simcall);
409 /* We no longer need it */
410 SIMIX_io_destroy(action);