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);
210 void SIMIX_post_io(smx_action_t action)
213 smx_simcall_t simcall;
215 xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
216 switch (simcall->call) {
217 case SIMCALL_FILE_OPEN:
218 simcall->file_open.result = xbt_new(s_smx_file_t,1);
219 simcall->file_open.result->surf_file = (action->io.surf_io)->file;
221 case SIMCALL_FILE_CLOSE:
222 simcall->file_read.result = 0;
224 case SIMCALL_FILE_WRITE:
225 simcall->file_write.result = (action->io.surf_io)->cost;
227 case SIMCALL_FILE_READ:
228 simcall->file_read.result = (action->io.surf_io)->cost;
230 case SIMCALL_FILE_STAT:
231 simcall->file_stat.result = 0;
232 s_file_stat_t *dst = &(simcall->file_stat.buf);
233 s_file_stat_t *src = &((action->io.surf_io)->stat);
234 file_stat_copy(src,dst);
241 switch (surf_workstation_model->action_state_get(action->io.surf_io)) {
243 case SURF_ACTION_FAILED:
244 action->state = SIMIX_FAILED;
247 case SURF_ACTION_DONE:
248 action->state = SIMIX_DONE;
256 SIMIX_io_finish(action);
259 void SIMIX_io_destroy(smx_action_t action)
261 XBT_DEBUG("Destroy action %p", action);
262 if (action->io.surf_io)
263 action->io.surf_io->model_type->action_unref(action->io.surf_io);
264 xbt_mallocator_release(simix_global->action_mallocator, action);
267 void SIMIX_io_finish(smx_action_t action)
269 xbt_fifo_item_t item;
270 smx_simcall_t simcall;
272 xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
274 switch (action->state) {
277 /* do nothing, action done */
281 SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
285 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
289 xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
292 simcall->issuer->waiting_action = NULL;
293 SIMIX_simcall_answer(simcall);
296 /* We no longer need it */
297 SIMIX_io_destroy(action);