-/* Copyright (c) 2004-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2004-2021. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "msg_private.hpp"
+#include "simgrid/Exception.hpp"
#include "simgrid/s4u/Host.hpp"
-#include "src/instr/instr_private.hpp"
-#include "src/simix/ActorImpl.hpp"
#include "src/simix/smx_private.hpp"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_process, msg, "Logging specific to MSG (process)");
-
-std::string instr_pid(msg_process_t proc)
-{
- return std::string(proc->get_name()) + "-" + std::to_string(proc->get_pid());
-}
-
/******************************** Process ************************************/
-
/** @brief Creates and runs a new #msg_process_t.
*
* Does exactly the same as #MSG_process_create_with_arguments but without providing standard arguments
* (@a argc, @a argv, @a start_time, @a kill_time).
*/
-msg_process_t MSG_process_create(const char *name, xbt_main_func_t code, void *data, msg_host_t host)
+msg_process_t MSG_process_create(const char* name, int (*code)(int, char**), void* data, msg_host_t host)
{
return MSG_process_create_with_environment(name == nullptr ? "" : name, code, data, host, 0, nullptr, nullptr);
}
* @param name a name for the object. It is for user-level information and can be nullptr.
* @param code is a function describing the behavior of the process.
* @param data a pointer to any data one may want to attach to the new object. It is for user-level information and
- * can be nullptr. It can be retrieved with the function @ref MSG_process_get_data.
+ * can be nullptr. It can be retrieved with the function MSG_process_get_data().
* @param host the location where the new process is executed.
* @param argc first argument passed to @a code
* @param argv second argument passed to @a code
*/
-msg_process_t MSG_process_create_with_arguments(const char *name, xbt_main_func_t code, void *data, msg_host_t host,
- int argc, char **argv)
+msg_process_t MSG_process_create_with_arguments(const char* name, int (*code)(int, char**), void* data, msg_host_t host,
+ int argc, char** argv)
{
return MSG_process_create_with_environment(name, code, data, host, argc, argv, nullptr);
}
* @param name a name for the object. It is for user-level information and can be nullptr.
* @param code is a function describing the behavior of the process.
* @param data a pointer to any data one may want to attach to the new object. It is for user-level information and
- * can be nullptr. It can be retrieved with the function @ref MSG_process_get_data.
+ * can be nullptr. It can be retrieved with the function MSG_process_get_data().
* @param host the location where the new process is executed.
* @param argc first argument passed to @a code
* @param argv second argument passed to @a code. WARNING, these strings are freed by the SimGrid kernel when the
* @see msg_process_t
* @return The new corresponding object.
*/
-msg_process_t MSG_process_create_with_environment(const char *name, xbt_main_func_t code, void *data, msg_host_t host,
- int argc, char **argv, xbt_dict_t properties)
+msg_process_t MSG_process_create_with_environment(const char* name, int (*code)(int, char**), void* data,
+ msg_host_t host, int argc, char** argv, xbt_dict_t properties)
{
xbt_assert(host != nullptr, "Invalid parameters: host param must not be nullptr");
+ sg_actor_t actor = sg_actor_init(std::move(name), host);
+
+ try {
+ if (data != nullptr) {
+ sg_actor_set_data(actor, data);
+ xbt_dict_cursor_t cursor = nullptr;
+ char* key;
+ char* value;
+ xbt_dict_foreach (properties, cursor, key, value)
+ actor->set_property(key, value);
+ }
+ actor->start(std::move(simgrid::xbt::wrap_main(code, argc, argv)));
+ } catch (simgrid::HostFailureException const&) {
+ xbt_die("Could not launch a new process on failed host %s.", host->get_cname());
+ }
- simgrid::simix::ActorCode function;
- if (code)
- function = simgrid::xbt::wrap_main(code, argc, static_cast<const char* const*>(argv));
-
- std::unordered_map<std::string, std::string> props;
- xbt_dict_cursor_t cursor = nullptr;
- char* key;
- char* value;
- xbt_dict_foreach (properties, cursor, key, value)
- props[key] = value;
xbt_dict_free(&properties);
-
- smx_actor_t self = SIMIX_process_self();
- smx_actor_t process = simgrid::simix::simcall([name, function, data, host, &props, self] {
- return simgrid::kernel::actor::ActorImpl::create(std::move(name), std::move(function), data, host, &props, self)
- .get();
- });
-
for (int i = 0; i != argc; ++i)
xbt_free(argv[i]);
xbt_free(argv);
- if (process == nullptr)
- return nullptr;
-
- MSG_process_yield();
- return process->ciface();
-}
-
-/* Become a process in the simulation
- *
- * Currently this can only be called by the main thread (once) and only work with some thread factories
- * (currently ThreadContextFactory).
- *
- * In the future, it might be extended in order to attach other threads created by a third party library.
- */
-msg_process_t MSG_process_attach(const char *name, void *data, msg_host_t host, xbt_dict_t properties)
-{
- xbt_assert(host != nullptr, "Invalid parameters: host and code params must not be nullptr");
- std::unordered_map<std::string, std::string> props;
- xbt_dict_cursor_t cursor = nullptr;
- char* key;
- char* value;
- xbt_dict_foreach (properties, cursor, key, value)
- props[key] = value;
- xbt_dict_free(&properties);
-
- /* Let's create the process: SIMIX may decide to start it right now, even before returning the flow control to us */
- smx_actor_t process = SIMIX_process_attach(name, data, host->get_cname(), &props, nullptr);
- if (not process)
- xbt_die("Could not attach");
- MSG_process_yield();
- return process->ciface();
-}
-
-/** @brief Detach a process attached with `MSG_process_attach()`
- *
- * This is called when the current process has finished its job.
- * Used in the main thread, it waits for the simulation to finish before returning. When it returns, the other
- * simulated processes and the maestro are destroyed.
- */
-void MSG_process_detach()
-{
- SIMIX_process_detach();
-}
-
-/** @brief Returns the user data of a process.
- *
- * This function checks whether @a process is a valid pointer and returns the user data associated to this process.
- */
-void* MSG_process_get_data(msg_process_t process)
-{
- xbt_assert(process != nullptr, "Invalid parameter: first parameter must not be nullptr!");
-
- /* get from SIMIX the MSG process data, and then the user data */
- return process->get_impl()->get_user_data();
-}
-
-/** @brief Sets the user data of a process.
- *
- * This function checks whether @a process is a valid pointer and sets the user data associated to this process.
- */
-msg_error_t MSG_process_set_data(msg_process_t process, void *data)
-{
- xbt_assert(process != nullptr, "Invalid parameter: first parameter must not be nullptr!");
-
- process->get_impl()->set_user_data(data);
-
- return MSG_OK;
+ simgrid::s4u::this_actor::yield();
+ return actor;
}
/** @brief Sets a cleanup function to be called to free the userdata of a process when a process is destroyed.
}
/** @brief returns a list of all currently existing processes */
-xbt_dynar_t MSG_processes_as_dynar() {
+xbt_dynar_t MSG_processes_as_dynar() // XBT_ATTRIB_DEPRECATED_v330
+{
xbt_dynar_t res = xbt_dynar_new(sizeof(smx_actor_t), nullptr);
for (auto const& kv : simix_global->process_list) {
smx_actor_t actor = kv.second;
}
return res;
}
-
-/** @brief Return the current number MSG processes. */
-int MSG_process_get_number()
-{
- return SIMIX_process_count();
-}
-
-/** @brief Return the PID of the current process.
- *
- * This function returns the PID of the currently running #msg_process_t.
- */
-int MSG_process_self_PID()
-{
- smx_actor_t self = SIMIX_process_self();
- return self == nullptr ? 0 : self->get_pid();
-}
-
-/** @brief Return the PPID of the current process.
- *
- * This function returns the PID of the parent of the currently running #msg_process_t.
- */
-int MSG_process_self_PPID()
-{
- return MSG_process_get_PPID(MSG_process_self());
-}
-
-/** @brief Return the name of the current process. */
-const char* MSG_process_self_name()
-{
- return SIMIX_process_self_get_name();
-}
-
-/** @brief Return the current process.
- *
- * This function returns the currently running #msg_process_t.
- */
-msg_process_t MSG_process_self()
-{
- return SIMIX_process_self()->ciface();
-}
-
-smx_context_t MSG_process_get_smx_ctx(msg_process_t process) { // deprecated -- smx_context_t should die afterward
- return process->get_impl()->context_;
-}
-/** @brief Add a function to the list of "on_exit" functions for the current process.
- * The on_exit functions are the functions executed when your process is killed.
- * You should use them to free the data used by your process.
- */
-void MSG_process_on_exit(int_f_pvoid_pvoid_t fun, void *data) {
- simgrid::s4u::this_actor::on_exit([fun](int a, void* b) { fun((void*)(intptr_t)a, b); }, data);
-}
-
-/** @brief Take an extra reference on that process to prevent it to be garbage-collected */
-XBT_PUBLIC void MSG_process_ref(msg_process_t process)
-{
- intrusive_ptr_add_ref(process);
-}
-/** @brief Release a reference on that process so that it can get be garbage-collected */
-XBT_PUBLIC void MSG_process_unref(msg_process_t process)
-{
- intrusive_ptr_release(process);
-}
