1 /* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/s4u/Host.hpp"
9 #include "smx_private.hpp"
10 #include "src/kernel/activity/IoImpl.hpp"
11 #include "src/simix/smx_io_private.hpp"
12 #include "src/surf/StorageImpl.hpp"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
16 void simcall_HANDLER_storage_read(smx_simcall_t simcall, surf_storage_t st, sg_size_t size)
18 smx_activity_t synchro = SIMIX_storage_read(st, size);
19 synchro->simcalls_.push_back(simcall);
20 simcall->issuer->waiting_synchro = synchro;
23 smx_activity_t SIMIX_storage_read(surf_storage_t st, sg_size_t size)
25 simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
26 synchro->surf_action_ = st->read(size);
28 synchro->surf_action_->set_data(synchro);
29 XBT_DEBUG("Create io synchro %p", synchro);
34 void simcall_HANDLER_storage_write(smx_simcall_t simcall, surf_storage_t st, sg_size_t size)
36 smx_activity_t synchro = SIMIX_storage_write(st, size);
37 synchro->simcalls_.push_back(simcall);
38 simcall->issuer->waiting_synchro = synchro;
41 smx_activity_t SIMIX_storage_write(surf_storage_t st, sg_size_t size)
43 simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
44 synchro->surf_action_ = st->write(size);
45 synchro->surf_action_->set_data(synchro);
46 XBT_DEBUG("Create io synchro %p", synchro);
51 void SIMIX_io_destroy(smx_activity_t synchro)
53 simgrid::kernel::activity::IoImplPtr io = boost::static_pointer_cast<simgrid::kernel::activity::IoImpl>(synchro);
54 XBT_DEBUG("Destroy synchro %p", synchro.get());
56 io->surf_action_->unref();
59 void SIMIX_io_finish(smx_activity_t synchro)
61 for (smx_simcall_t const& simcall : synchro->simcalls_) {
62 switch (synchro->state_) {
64 /* do nothing, synchro done */
67 SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
70 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
73 xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state_));
76 if (simcall->issuer->host_->is_off()) {
77 simcall->issuer->context_->iwannadie = 1;
80 simcall->issuer->waiting_synchro = nullptr;
81 SIMIX_simcall_answer(simcall);
84 /* We no longer need it */
85 SIMIX_io_destroy(synchro);