C++ ACTIVE_TASK::process_exists方法代码示例

void ACTIVE_TASK_SET::process_control_poll() {
    unsigned int i;
    ACTIVE_TASK* atp;

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        if (!atp->app_client_shm.shm) continue;

        // if app has had the same message in its send buffer for 180 sec,
        // assume it's hung and restart it
        //
        if (atp->process_control_queue.timeout(180)) {
            if (log_flags.task_debug) {
                msg_printf(atp->result->project, MSG_INFO,
                           "Restarting %s - message timeout", atp->result->name
                          );
            }
            atp->kill_task(true);
        } else {
            atp->process_control_queue.msg_queue_poll(
                atp->app_client_shm.shm->process_control_request
            );
        }
    }
}

void ACTIVE_TASK_SET::request_reread_app_info() {
    for (unsigned int i=0; i<active_tasks.size(); i++) {
        ACTIVE_TASK* atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        atp->request_reread_app_info();
    }
}

void ACTIVE_TASK_SET::send_heartbeats() {
    unsigned int i;
    ACTIVE_TASK* atp;
    char buf[1024];
    double ar = gstate.available_ram();

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        if (!atp->app_client_shm.shm) continue;
        snprintf(buf, sizeof(buf), "<heartbeat/>"
                 "<wss>%e</wss>"
                 "<max_wss>%e</max_wss>",
                 atp->procinfo.working_set_size, ar
                );
        bool sent = atp->app_client_shm.shm->heartbeat.send_msg(buf);
        if (log_flags.app_msg_send) {
            if (sent) {
                msg_printf(atp->result->project, MSG_INFO,
                           "[app_msg_send] sent heartbeat to %s",
                           atp->result->name
                          );
            } else {
                msg_printf(atp->result->project, MSG_INFO,
                           "[app_msg_send] failed to send heartbeat to %s",
                           atp->result->name
                          );
            }
        }
    }
}

void ACTIVE_TASK_SET::send_heartbeats() {
    unsigned int i;
    ACTIVE_TASK* atp;
    char buf[1024];
    double ar = gstate.available_ram();

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        if (!atp->app_client_shm.shm) continue;
        snprintf(buf, sizeof(buf), "<heartbeat/>"
            "<wss>%e</wss>"
            "<max_wss>%e</max_wss>",
            atp->procinfo.working_set_size, ar
        );
        if (gstate.network_suspended) {
            strcat(buf, "<network_suspended/>");
        }
        bool sent = atp->app_client_shm.shm->heartbeat.send_msg(buf);
        if (log_flags.heartbeat_debug) {
            if (sent) {
                msg_printf(atp->result->project, MSG_INFO,
                    "[heartbeat] Heartbeat sent to task %s",
                    atp->result->name
                );
            } else {
                msg_printf(atp->result->project, MSG_INFO,
                    "[heartbeat] Heartbeat to task %s failed, previous message unread",
                    atp->result->name
                );
            }
        }
    }
}

// check for msgs from active tasks,
// and update their elapsed time and other info
//
void ACTIVE_TASK_SET::get_msgs() {
//LOGD("app_control: ACTIVE_TASK::get_msgs");
    unsigned int i;
    ACTIVE_TASK *atp;
    double old_time;
    static double last_time=0;
    double delta_t;
    if (last_time) {
        delta_t = gstate.now - last_time;

        // Normally this is called every second.
        // If delta_t is > 10, we'll assume that a period of hibernation
        // or suspension happened, and treat it as zero.
        // If negative, must be clock reset.  Ignore.
        //
        if (delta_t > 10 || delta_t < 0) {
            delta_t = 0;
        }
    } else {
        delta_t = 0;
    }
    last_time = gstate.now;

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        old_time = atp->checkpoint_cpu_time;
        if (atp->task_state() == PROCESS_EXECUTING) {
            atp->elapsed_time += delta_t;
        }
        if (atp->get_app_status_msg()) {
            if (old_time != atp->checkpoint_cpu_time) {
                char buf[256];
                sprintf(buf, "%s checkpointed", atp->result->name);
                if (atp->overdue_checkpoint) {
                    gstate.request_schedule_cpus(buf);
                }
                atp->checkpoint_wall_time = gstate.now;
                atp->premature_exit_count = 0;
                atp->checkpoint_elapsed_time = atp->elapsed_time;
                atp->checkpoint_fraction_done = atp->fraction_done;
                atp->checkpoint_fraction_done_elapsed_time = atp->fraction_done_elapsed_time;
                if (log_flags.checkpoint_debug) {
                    msg_printf(atp->wup->project, MSG_INFO,
                        "[checkpoint] result %s checkpointed",
                        atp->result->name
                    );
                } else if (log_flags.task_debug) {
                    msg_printf(atp->wup->project, MSG_INFO,
                        "[task] result %s checkpointed",
                        atp->result->name
                    );
                }
                atp->write_task_state_file();
            }
        }
        atp->get_trickle_up_msg();
        atp->get_graphics_msg();
    }
}

// See if any processes have exited
//
bool ACTIVE_TASK_SET::check_app_exited() {
//LOGD("app_control: ACTIVE_TASK_SET::check_app_exited");
    ACTIVE_TASK* atp;
    bool found = false;

#ifdef _WIN32
    unsigned long exit_code;
    unsigned int i;

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        if (GetExitCodeProcess(atp->process_handle, &exit_code)) {
            if (exit_code != STILL_ACTIVE) {
                found = true;
                atp->handle_exited_app(exit_code);
            }
        } else {
            if (log_flags.task_debug) {
                char errmsg[1024];
                msg_printf(atp->result->project, MSG_INFO,
                    "[task] task %s GetExitCodeProcess() failed - %s GLE %d (0x%x)",
                    atp->result->name,
                    windows_format_error_string(
                        GetLastError(), errmsg, sizeof(errmsg)
                    ),
                    GetLastError(), GetLastError()
                );
            }

            // The process doesn't seem to be there.
            // Mark task as aborted so we don't check it again.
            //
            atp->set_task_state(PROCESS_ABORTED, "check_app_exited");
        }
    }
#else
    int pid, stat;

    if ((pid = waitpid(-1, &stat, WNOHANG)) > 0) {
        atp = lookup_pid(pid);
        if (!atp) {
            // if we're running benchmarks, exited process
            // is probably a benchmark process; don't show error
            //
            if (!gstate.are_cpu_benchmarks_running() && log_flags.task_debug) {
                msg_printf(NULL, MSG_INTERNAL_ERROR,
                    "Process %d not found\n", pid
                );
            }
            return false;
        }
        atp->handle_exited_app(stat);
        found = true;
    }
#endif

    return found;
}

// Send kill signal to all app processes
// Don't wait for them to exit
//
void ACTIVE_TASK_SET::kill_tasks(PROJECT* proj) {
    unsigned int i;
    ACTIVE_TASK *atp;
    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (proj && atp->wup->project != proj) continue;
        if (!atp->process_exists()) continue;
        atp->kill_task(false);
    }
}

// tell all running apps of a project to reread prefs
//
void ACTIVE_TASK_SET::request_reread_prefs(PROJECT* project) {
    unsigned int i;
    ACTIVE_TASK* atp;

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (atp->result->project != project) continue;
        if (!atp->process_exists()) continue;
        atp->request_reread_prefs();
    }
}

// Send quit message to all app processes
// This is called when the core client exits,
// or when a project is detached or reset
//
void ACTIVE_TASK_SET::request_tasks_exit(PROJECT* proj) {
LOGD("app_control: ACTIVE_TASK::request_tasks_exit");
    unsigned int i;
    ACTIVE_TASK *atp;
    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (proj && atp->wup->project != proj) continue;
        if (!atp->process_exists()) continue;
        atp->request_exit();
    }
}

void ACTIVE_TASK_SET::graphics_poll() {
    unsigned int i;
    ACTIVE_TASK* atp;

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        atp->graphics_request_queue.msg_queue_poll(
            atp->app_client_shm.shm->graphics_request
        );
        atp->check_graphics_mode_ack();
    }
}

void ACTIVE_TASK_SET::send_trickle_downs() {
    unsigned int i;
    ACTIVE_TASK* atp;
    bool sent;
    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        if (atp->have_trickle_down) {
            if (!atp->app_client_shm.shm) continue;
            sent = atp->app_client_shm.shm->trickle_down.send_msg("<have_trickle_down/>\n");
            if (sent) atp->have_trickle_down = false;
        }
        if (atp->send_upload_file_status) {
            if (!atp->app_client_shm.shm) continue;
            sent = atp->app_client_shm.shm->trickle_down.send_msg("<upload_file_status/>\n");
            if (sent) atp->send_upload_file_status = false;
       }
    }
}

// check for msgs from active tasks,
// and update their elapsed time and other info
//
void ACTIVE_TASK_SET::get_msgs() {
    unsigned int i;
    ACTIVE_TASK *atp;
    double old_time;
    static double last_time=0;
    double delta_t;
    if (!gstate.clock_change && last_time) {
        delta_t = gstate.now - last_time;

        // Normally this is called every second.
        // If delta_t is > 10, we'll assume that a period of hibernation
        // or suspension happened, and treat it as zero.
        // If negative, must be clock reset.  Ignore.
        //
        if (delta_t > 10 || delta_t < 0) {
            delta_t = 0;
        }
    } else {
        delta_t = 0;
    }
    last_time = gstate.now;

    double et_diff, et_diff_throttle;
    switch (gstate.suspend_reason) {
    case 0:
    case SUSPEND_REASON_CPU_THROTTLE:
        et_diff = delta_t;
        et_diff_throttle = delta_t * gstate.global_prefs.cpu_usage_limit/100;
        break;
    default:
        et_diff = et_diff_throttle = 0;
        break;
    }

    for (i=0; i<active_tasks.size(); i++) {
        atp = active_tasks[i];
        if (!atp->process_exists()) continue;
        old_time = atp->checkpoint_cpu_time;
        if (atp->scheduler_state == CPU_SCHED_SCHEDULED) {
            atp->elapsed_time += atp->result->dont_throttle()?et_diff:et_diff_throttle;
        }
        if (atp->get_app_status_msg()) {
            if (old_time != atp->checkpoint_cpu_time) {
                char buf[256];
                sprintf(buf, "%s checkpointed", atp->result->name);
                if (atp->overdue_checkpoint) {
                    gstate.request_schedule_cpus(buf);
                }
                atp->checkpoint_wall_time = gstate.now;
                atp->premature_exit_count = 0;
                atp->checkpoint_elapsed_time = atp->elapsed_time;
                atp->checkpoint_fraction_done = atp->fraction_done;
                atp->checkpoint_fraction_done_elapsed_time = atp->fraction_done_elapsed_time;
                if (log_flags.checkpoint_debug) {
                    msg_printf(atp->wup->project, MSG_INFO,
                        "[checkpoint] result %s checkpointed",
                        atp->result->name
                    );
                } else if (log_flags.task_debug) {
                    msg_printf(atp->wup->project, MSG_INFO,
                        "[task] result %s checkpointed",
                        atp->result->name
                    );
                }
                atp->write_task_state_file();
            }
        }
        atp->get_trickle_up_msg();
        atp->get_graphics_msg();
    }
}