/* 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 <exception>
+#include <functional>
+#include <string>
+#include <utility>
+
+#include <boost/range/algorithm.hpp>
+
+#include <xbt/functional.hpp>
+#include <xbt/ex.hpp>
+#include <xbt/sysdep.h>
+#include <xbt/log.h>
+#include <xbt/dict.h>
+
+#include <simgrid/s4u/host.hpp>
+
+#include <mc/mc.h>
+
#include "src/surf/surf_interface.hpp"
#include "smx_private.h"
-#include "xbt/sysdep.h"
-#include "xbt/log.h"
-#include "xbt/dict.h"
-#include "mc/mc.h"
#include "src/mc/mc_replay.h"
#include "src/mc/Client.hpp"
#include "src/msg/msg_private.h"
-
#include "src/simix/SynchroSleep.hpp"
#include "src/simix/SynchroRaw.hpp"
#include "src/simix/SynchroIo.hpp"
unsigned long simix_process_maxpid = 0;
+/** Increase the refcount for this process */
+smx_process_t SIMIX_process_ref(smx_process_t process)
+{
+ if (process != nullptr)
+ intrusive_ptr_add_ref(process);
+ return process;
+}
+
+/** Decrease the refcount for this process */
+void SIMIX_process_unref(smx_process_t process)
+{
+ if (process != nullptr)
+ intrusive_ptr_release(process);
+}
+
/**
* \brief Returns the current agent.
*
{
smx_context_t self_context = SIMIX_context_self();
- return self_context ? self_context->process() : NULL;
+ return self_context ? self_context->process() : nullptr;
}
/**
XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p",
process->name.c_str(), process, process->waiting_synchro);
+ process->finished = true;
SIMIX_process_on_exit_runall(process);
/* Unregister from the kill timer if any */
- if (process->kill_timer != NULL)
+ if (process->kill_timer != nullptr)
SIMIX_timer_remove(process->kill_timer);
xbt_os_mutex_acquire(simix_global->mutex);
if (comm->src_proc == process) {
XBT_DEBUG("Found an unfinished send comm %p (detached = %d), state %d, src = %p, dst = %p",
comm, comm->detached, (int)comm->state, comm->src_proc, comm->dst_proc);
- comm->src_proc = NULL;
+ comm->src_proc = nullptr;
/* I'm not supposed to destroy a detached comm from the sender side, */
if (comm->detached)
else if (comm->dst_proc == process){
XBT_DEBUG("Found an unfinished recv comm %p, state %d, src = %p, dst = %p",
comm, (int)comm->state, comm->src_proc, comm->dst_proc);
- comm->dst_proc = NULL;
+ comm->dst_proc = nullptr;
- if (comm->detached && comm->src_proc != NULL) {
+ if (comm->detached && comm->src_proc != nullptr) {
/* the comm will be freed right now, remove it from the sender */
xbt_fifo_remove(comm->src_proc->comms, comm);
}
*/
void SIMIX_process_empty_trash(void)
{
- smx_process_t process = NULL;
+ smx_process_t process = nullptr;
while ((process = (smx_process_t) xbt_swag_extract(simix_global->process_to_destroy))) {
XBT_DEBUG("Getting rid of %p",process);
-
- delete process->context;
-
- /* Free the exception allocated at creation time */
- free(process->running_ctx);
- xbt_dict_free(&process->properties);
-
- xbt_fifo_free(process->comms);
-
- xbt_dynar_free(&process->on_exit);
-
- delete process;
+ intrusive_ptr_release(process);
}
}
namespace simgrid {
namespace simix {
+Process::~Process()
+{
+ delete this->context;
+ if (this->properties)
+ xbt_dict_free(&this->properties);
+ if (this->comms != nullptr)
+ xbt_fifo_free(this->comms);
+ if (this->on_exit)
+ xbt_dynar_free(&this->on_exit);
+}
+
void create_maestro(std::function<void()> code)
{
- smx_process_t maestro = NULL;
+ smx_process_t maestro = nullptr;
/* Create maestro process and intilialize it */
maestro = new simgrid::simix::Process();
maestro->pid = simix_process_maxpid++;
maestro->ppid = -1;
maestro->name = "";
maestro->data = nullptr;
- maestro->running_ctx = (xbt_running_ctx_t*) xbt_malloc0(sizeof(xbt_running_ctx_t));
- XBT_RUNNING_CTX_INITIALIZE(maestro->running_ctx);
if (!code) {
- maestro->context = SIMIX_context_new(std::function<void()>(), NULL, maestro);
+ maestro->context = SIMIX_context_new(std::function<void()>(), nullptr, maestro);
} else {
if (!simix_global)
xbt_die("simix is not initialized, please call MSG_init first");
* and stops its context.
*/
void SIMIX_process_stop(smx_process_t arg) {
+ arg->finished = true;
/* execute the on_exit functions */
SIMIX_process_on_exit_runall(arg);
/* Add the process to the list of process to restart, only if the host is down */
int auto_restart,
smx_process_t parent_process)
{
- smx_process_t process = NULL;
+ smx_process_t process = nullptr;
sg_host_t host = sg_host_by_name(hostname);
XBT_DEBUG("Start process %s on host '%s'", name, hostname);
else {
process = new simgrid::simix::Process();
- xbt_assert(code && host != NULL, "Invalid parameters");
+ xbt_assert(code && host != nullptr, "Invalid parameters");
/* Process data */
process->pid = simix_process_maxpid++;
process->name = simgrid::xbt::string(name);
/* Initiliaze data segment to default value */
SIMIX_segment_index_set(process, -1);
- if (parent_process != NULL) {
+ if (parent_process != nullptr) {
process->ppid = SIMIX_process_get_PID(parent_process);
/* SMPI process have their own data segment and
each other inherit from their father */
std::move(code),
simix_global->cleanup_process_function, process);
- process->running_ctx = (xbt_running_ctx_t*) xbt_malloc0(sizeof(xbt_running_ctx_t));
- XBT_RUNNING_CTX_INITIALIZE(process->running_ctx);
-
- if(MC_is_active()){
- MC_ignore_heap(process->running_ctx, sizeof(*process->running_ctx));
- }
-
/* Add properties */
process->properties = properties;
process->ppid = -1;
/* Initiliaze data segment to default value */
SIMIX_segment_index_set(process, -1);
- if (parent_process != NULL) {
+ if (parent_process != nullptr) {
process->ppid = SIMIX_process_get_PID(parent_process);
/* SMPI process have their own data segment and
each other inherit from their father */
process->context = simix_global->context_factory->attach(
simix_global->cleanup_process_function, process);
- process->running_ctx = (xbt_running_ctx_t*) xbt_malloc0(sizeof(xbt_running_ctx_t));
- XBT_RUNNING_CTX_INITIALIZE(process->running_ctx);
-
- if(MC_is_active()){
- MC_ignore_heap(process->running_ctx, sizeof(*process->running_ctx));
- }
-
/* Add properties */
process->properties = properties;
process->context->iwannadie = 1;
process->blocked = 0;
process->suspended = 0;
- process->doexception = 0;
+ process->exception = nullptr;
/* destroy the blocking synchro if any */
if (process->waiting_synchro) {
} else if (comm != nullptr) {
xbt_fifo_remove(process->comms, process->waiting_synchro);
comm->cancel();
- xbt_fifo_remove(process->waiting_synchro->simcalls, &process->simcall);
+
+ // Remove first occurence of &process->simcall:
+ auto i = boost::range::find(
+ process->waiting_synchro->simcalls,
+ &process->simcall);
+ if (i != process->waiting_synchro->simcalls.end())
+ process->waiting_synchro->simcalls.remove(&process->simcall);
+
comm->unref();
} else if (sleep != nullptr) {
break;
} */
- process->waiting_synchro = NULL;
+ process->waiting_synchro = nullptr;
}
if(!xbt_dynar_member(simix_global->process_to_run, &(process)) && process != issuer) {
XBT_DEBUG("Inserting %s in the to_run list", process->name.c_str());
SIMIX_io_destroy(process->waiting_synchro);
}
}
- process->waiting_synchro = NULL;
+ process->waiting_synchro = nullptr;
}
*/
void SIMIX_process_killall(smx_process_t issuer, int reset_pid)
{
- smx_process_t p = NULL;
+ smx_process_t p = nullptr;
while ((p = (smx_process_t) xbt_swag_extract(simix_global->process_list))) {
if (p != issuer) {
void SIMIX_process_change_host(smx_process_t process,
sg_host_t dest)
{
- xbt_assert((process != NULL), "Invalid parameters");
+ xbt_assert((process != nullptr), "Invalid parameters");
xbt_swag_remove(process, sg_host_simix(process->host)->process_list);
process->host = dest;
xbt_swag_insert(process, sg_host_simix(dest)->process_list);
if (process != simcall->issuer) {
SIMIX_simcall_answer(simcall);
} else {
- xbt_fifo_push(sync_suspend->simcalls, simcall);
+ sync_suspend->simcalls.push_back(simcall);
process->waiting_synchro = sync_suspend;
process->waiting_synchro->suspend();
}
{
if (process->suspended) {
XBT_DEBUG("Process '%s' is already suspended", process->name.c_str());
- return NULL;
+ return nullptr;
}
process->suspended = 1;
process->waiting_synchro->suspend();
/* If the other process is not waiting, its suspension is delayed to when the process is rescheduled. */
- return NULL;
+ return nullptr;
} else {
/* FIXME: computation size is zero. Is it okay that bound is zero ? */
return SIMIX_execution_start(process, "suspend", 0.0, 1.0, 0.0, 0);
}
int SIMIX_process_get_PID(smx_process_t self){
- if (self == NULL)
+ if (self == nullptr)
return 0;
else
return self->pid;
}
int SIMIX_process_get_PPID(smx_process_t self){
- if (self == NULL)
+ if (self == nullptr)
return 0;
else
return self->ppid;
smx_process_t self = SIMIX_process_self();
if (!self) {
- return NULL;
+ return nullptr;
}
return SIMIX_process_get_data(self);
}
const char* SIMIX_process_self_get_name(void) {
smx_process_t process = SIMIX_process_self();
- if (process == NULL || process == simix_global->maestro_process)
+ if (process == nullptr || process == simix_global->maestro_process)
return "maestro";
return SIMIX_process_get_name(process);
if (proc->name == name)
return proc;
}
- return NULL;
+ return nullptr;
}
int SIMIX_process_is_suspended(smx_process_t process)
void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_process_t process, double timeout)
{
+ if (process->finished) {
+ // The joined process is already finished, just wake up the issuer process right away
+ simcall_process_sleep__set__result(simcall, SIMIX_DONE);
+ SIMIX_simcall_answer(simcall);
+ return;
+ }
smx_synchro_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
- xbt_fifo_push(sync->simcalls, simcall);
+ sync->simcalls.push_back(simcall);
simcall->issuer->waiting_synchro = sync;
}
if (sleep->surf_sleep) {
sleep->surf_sleep->cancel();
- smx_simcall_t simcall;
- while ((simcall = (smx_simcall_t) xbt_fifo_shift(sleep->simcalls))) {
+ while (!sleep->simcalls.empty()) {
+ smx_simcall_t simcall = sleep->simcalls.front();
+ sleep->simcalls.pop_front();
simcall_process_sleep__set__result(simcall, SIMIX_DONE);
- simcall->issuer->waiting_synchro = NULL;
+ simcall->issuer->waiting_synchro = nullptr;
if (simcall->issuer->suspended) {
XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
simcall->issuer->suspended = 0;
}
}
sleep->surf_sleep->unref();
- sleep->surf_sleep = NULL;
+ sleep->surf_sleep = nullptr;
}
- delete sleep;
+ sleep->unref();
return 0;
}
smx_synchro_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout)
{
smx_synchro_t res = SIMIX_process_sleep(issuer, timeout);
+ static_cast<simgrid::simix::Synchro*>(res)->ref();
SIMIX_process_on_exit(process, (int_f_pvoid_pvoid_t)SIMIX_process_join_finish, res);
return res;
}
return;
}
smx_synchro_t sync = SIMIX_process_sleep(simcall->issuer, duration);
- xbt_fifo_push(sync->simcalls, simcall);
+ sync->simcalls.push_back(simcall);
simcall->issuer->waiting_synchro = sync;
}
THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
simgrid::simix::Sleep *synchro = new simgrid::simix::Sleep();
- synchro->name = NULL;
-
synchro->host = host;
synchro->surf_sleep = surf_host_sleep(host, duration);
synchro->surf_sleep->setData(synchro);
if (sleep->surf_sleep) {
sleep->surf_sleep->unref();
- sleep->surf_sleep = NULL;
+ sleep->surf_sleep = nullptr;
+ sleep->unref();
}
}
if (self->new_host) {
SIMIX_process_change_host(self, self->new_host);
- self->new_host = NULL;
+ self->new_host = nullptr;
}
if (self->context->iwannadie){
if (self->suspended) {
XBT_DEBUG("Hey! I'm suspended.");
- xbt_assert(!self->doexception, "Gasp! This exception may be lost by subsequent calls.");
+ xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls.");
self->suspended = 0;
SIMIX_process_suspend(self, self);
}
- if (self->doexception) {
+ if (self->exception != nullptr) {
XBT_DEBUG("Wait, maestro left me an exception");
- self->doexception = 0;
- RETHROW;
+ std::exception_ptr exception = std::move(self->exception);
+ self->exception = nullptr;
+ std::rethrow_exception(std::move(exception));
}
if(SMPI_switch_data_segment && self->segment_index != -1){
}
}
-/* callback: context fetching */
-xbt_running_ctx_t *SIMIX_process_get_running_context(void)
-{
- smx_process_t process = SIMIX_process_self();
- if (process)
- return process->running_ctx;
- else
- return nullptr;
-}
-
/* callback: termination */
void SIMIX_process_exception_terminate(xbt_ex_t * e)
{
if (proc->pid == (unsigned long) PID)
return proc;
}
- return NULL;
+ return nullptr;
}
/** @brief returns a dynar containg all currently existing processes */
xbt_dynar_t SIMIX_processes_as_dynar(void) {
smx_process_t proc;
- xbt_dynar_t res = xbt_dynar_new(sizeof(smx_process_t),NULL);
+ xbt_dynar_t res = xbt_dynar_new(sizeof(smx_process_t),nullptr);
xbt_swag_foreach(proc, simix_global->process_list) {
xbt_dynar_push(res,&proc);
}
xbt_assert(process, "current process not found: are you in maestro context ?");
if (!process->on_exit) {
- process->on_exit = xbt_dynar_new(sizeof(s_smx_process_exit_fun_t), NULL);
+ process->on_exit = xbt_dynar_new(sizeof(s_smx_process_exit_fun_t), nullptr);
}
s_smx_process_exit_fun_t exit_fun = {fun, data};
arg.hostname = sg_host_get_name(process->host);
arg.kill_time = SIMIX_timer_get_date(process->kill_timer);
arg.data = process->data;
- arg.properties = NULL;
+ arg.properties = nullptr;
arg.auto_restart = process->auto_restart;
//kill the old process
proc->segment_index = index;
}
+/**
+ * \ingroup simix_process_management
+ * \brief Creates and runs a new SIMIX process.
+ *
+ * The structure and the corresponding thread are created and put in the list of ready processes.
+ *
+ * \param name a name for the process. It is for user-level information and can be nullptr.
+ * \param code the main function 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 simcall_process_get_data.
+ * \param hostname name of the host where the new agent is executed.
+ * \param kill_time time when the process is killed
+ * \param argc first argument passed to \a code
+ * \param argv second argument passed to \a code
+ * \param properties the properties of the process
+ * \param auto_restart either it is autorestarting or not.
+ */
+smx_process_t simcall_process_create(const char *name,
+ xbt_main_func_t code,
+ void *data,
+ const char *hostname,
+ double kill_time,
+ int argc, char **argv,
+ xbt_dict_t properties,
+ int auto_restart)
+{
+ if (name == nullptr)
+ name = "";
+ auto wrapped_code = simgrid::xbt::wrapMain(code, argc, argv);
+ for (int i = 0; i != argc; ++i)
+ xbt_free(argv[i]);
+ xbt_free(argv);
+ smx_process_t res = simcall_process_create(name,
+ std::move(wrapped_code),
+ data, hostname, kill_time, properties, auto_restart);
+ return res;
+}
+
smx_process_t simcall_process_create(
const char *name, std::function<void()> code, void *data,
const char *hostname, double kill_time,
if (name == nullptr)
name = "";
smx_process_t self = SIMIX_process_self();
- return simgrid::simix::kernel([&] {
+ return simgrid::simix::kernelImmediate([&] {
return SIMIX_process_create(name,
std::move(code), data, hostname,
kill_time, properties, auto_restart,
self);
});
-}
\ No newline at end of file
+}
