| paul@543 | 1 | /* |
| paul@543 | 2 | * A process monitor abstraction. |
| paul@543 | 3 | * |
| paul@618 | 4 | * Copyright (C) 2022, 2023, 2024 Paul Boddie <paul@boddie.org.uk> |
| paul@543 | 5 | * |
| paul@543 | 6 | * This program is free software; you can redistribute it and/or |
| paul@543 | 7 | * modify it under the terms of the GNU General Public License as |
| paul@543 | 8 | * published by the Free Software Foundation; either version 2 of |
| paul@543 | 9 | * the License, or (at your option) any later version. |
| paul@543 | 10 | * |
| paul@543 | 11 | * This program is distributed in the hope that it will be useful, |
| paul@543 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| paul@543 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| paul@543 | 14 | * GNU General Public License for more details. |
| paul@543 | 15 | * |
| paul@543 | 16 | * You should have received a copy of the GNU General Public License |
| paul@543 | 17 | * along with this program; if not, write to the Free Software |
| paul@543 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| paul@543 | 19 | * Boston, MA 02110-1301, USA |
| paul@543 | 20 | */ |
| paul@543 | 21 | |
| paul@543 | 22 | #pragma once |
| paul@543 | 23 | |
| paul@543 | 24 | #include <fsserver/notification.h> |
| paul@543 | 25 | #include <resource/resource.h> |
| paul@543 | 26 | |
| paul@543 | 27 | #include "parent_notification_object_interface.h" |
| paul@543 | 28 | |
| paul@543 | 29 | |
| paul@543 | 30 | |
| paul@543 | 31 | /* A process monitor receiving signals from a task. */ |
| paul@543 | 32 | |
| paul@543 | 33 | class ProcessMonitor : public ParentNotificationObject, public NotificationSupport, |
| paul@543 | 34 | public Resource |
| paul@543 | 35 | { |
| paul@543 | 36 | protected: |
| paul@618 | 37 | bool _debug; |
| paul@543 | 38 | |
| paul@543 | 39 | /* Resources associated with the created process. */ |
| paul@543 | 40 | |
| paul@543 | 41 | l4_cap_idx_t _pager = L4_INVALID_CAP, _mapped_pager = L4_INVALID_CAP, |
| paul@543 | 42 | _parent = L4_INVALID_CAP, _mapped_parent = L4_INVALID_CAP, |
| paul@543 | 43 | _task = L4_INVALID_CAP, _mapped_task = L4_INVALID_CAP, |
| paul@543 | 44 | _thread = L4_INVALID_CAP, _mapped_thread = L4_INVALID_CAP; |
| paul@543 | 45 | |
| paul@548 | 46 | /* Notification support. */ |
| paul@548 | 47 | |
| paul@548 | 48 | l4_cap_idx_t _notifier = L4_INVALID_CAP; |
| paul@548 | 49 | |
| paul@543 | 50 | public: |
| paul@618 | 51 | explicit ProcessMonitor(bool debug = false); |
| paul@543 | 52 | |
| paul@543 | 53 | /* Server details. */ |
| paul@543 | 54 | |
| paul@543 | 55 | virtual ipc_server_default_config_type config(); |
| paul@543 | 56 | |
| paul@543 | 57 | virtual void *interface() |
| paul@543 | 58 | { return static_cast<ParentNotificationObject *>(this); } |
| paul@543 | 59 | |
| paul@543 | 60 | /* Capability management. */ |
| paul@543 | 61 | |
| paul@543 | 62 | virtual void set_pager(l4_cap_idx_t cap, l4_cap_idx_t mapped_cap); |
| paul@543 | 63 | virtual void set_parent(l4_cap_idx_t cap, l4_cap_idx_t mapped_cap); |
| paul@543 | 64 | virtual void set_task(l4_cap_idx_t cap, l4_cap_idx_t mapped_cap); |
| paul@543 | 65 | virtual void set_thread(l4_cap_idx_t cap, l4_cap_idx_t mapped_cap); |
| paul@543 | 66 | |
| paul@543 | 67 | /* Lifecycle management. */ |
| paul@543 | 68 | |
| paul@543 | 69 | virtual void pager_ended(); |
| paul@543 | 70 | |
| paul@543 | 71 | /* Resource methods. */ |
| paul@543 | 72 | |
| paul@543 | 73 | virtual void close(); |
| paul@543 | 74 | |
| paul@543 | 75 | /* Parent methods. */ |
| paul@543 | 76 | |
| paul@543 | 77 | virtual long signal(unsigned long sig, unsigned long val); |
| paul@543 | 78 | |
| paul@543 | 79 | /* Notification methods. */ |
| paul@543 | 80 | |
| paul@543 | 81 | virtual long subscribe(l4_cap_idx_t notifier, notify_flags_t flags); |
| paul@543 | 82 | |
| paul@548 | 83 | virtual long unsubscribe(); |
| paul@543 | 84 | }; |
| paul@543 | 85 | |
| paul@543 | 86 | /* vim: tabstop=2 expandtab shiftwidth=2 |
| paul@543 | 87 | */ |
