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);
246 void SIMIX_post_io(smx_action_t action)
249 smx_simcall_t simcall;
251 xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
252 switch (simcall->call) {
253 case SIMCALL_FILE_OPEN:
254 simcall->file_open.result = xbt_new(s_smx_file_t,1);
255 simcall->file_open.result->surf_file = (action->io.surf_io)->file;
257 case SIMCALL_FILE_CLOSE:
258 xbt_free(simcall->file_close.fp);
259 simcall->file_close.result = 0;
261 case SIMCALL_FILE_WRITE:
262 simcall->file_write.result = (action->io.surf_io)->cost;
264 case SIMCALL_FILE_READ:
265 simcall->file_read.result = (action->io.surf_io)->cost;
267 case SIMCALL_FILE_STAT:
268 simcall->file_stat.result = 0;
269 s_file_stat_t *dst = &(simcall->file_stat.buf);
270 s_file_stat_t *src = &((action->io.surf_io)->stat);
271 file_stat_copy(src,dst);
273 case SIMCALL_FILE_UNLINK:
274 xbt_free(simcall->file_unlink.fd);
275 simcall->file_unlink.result = 0;
282 switch (surf_workstation_model->action_state_get(action->io.surf_io)) {
284 case SURF_ACTION_FAILED:
285 action->state = SIMIX_FAILED;
288 case SURF_ACTION_DONE:
289 action->state = SIMIX_DONE;
297 SIMIX_io_finish(action);
300 void SIMIX_io_destroy(smx_action_t action)
302 XBT_DEBUG("Destroy action %p", action);
303 if (action->io.surf_io)
304 action->io.surf_io->model_type->action_unref(action->io.surf_io);
305 xbt_mallocator_release(simix_global->action_mallocator, action);
308 void SIMIX_io_finish(smx_action_t action)
310 xbt_fifo_item_t item;
311 smx_simcall_t simcall;
313 xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
315 switch (action->state) {
318 /* do nothing, action done */
322 SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
326 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
330 xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
334 if (surf_workstation_model->extension.
335 workstation.get_state(simcall->issuer->smx_host->host) != SURF_RESOURCE_ON) {
336 simcall->issuer->context->iwannadie = 1;
339 simcall->issuer->waiting_action = NULL;
340 SIMIX_simcall_answer(simcall);
343 /* We no longer need it */
344 SIMIX_io_destroy(action);