summaryrefslogtreecommitdiff
path: root/src/libcore/service.h
diff options
context:
space:
mode:
authorLuke Shumaker <lukeshu@sbcglobal.net>2016-06-13 11:45:15 -0400
committerLuke Shumaker <lukeshu@sbcglobal.net>2016-06-13 11:45:15 -0400
commit28282a3f352f1be7a4ff956fbeb0bca37bb8bc64 (patch)
tree2a4bcd23e614dfc487d48a2b6d8395b9d2437016 /src/libcore/service.h
parentfc18b7fdd1286d96a4cc36b74e4da81c6ad6a326 (diff)
./move.sh
Diffstat (limited to 'src/libcore/service.h')
-rw-r--r--src/libcore/service.h220
1 files changed, 220 insertions, 0 deletions
diff --git a/src/libcore/service.h b/src/libcore/service.h
new file mode 100644
index 0000000000..4af3d40439
--- /dev/null
+++ b/src/libcore/service.h
@@ -0,0 +1,220 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+typedef struct Service Service;
+typedef struct ServiceFDStore ServiceFDStore;
+
+#include "exit-status.h"
+#include "kill.h"
+#include "path.h"
+#include "ratelimit.h"
+
+typedef enum ServiceRestart {
+ SERVICE_RESTART_NO,
+ SERVICE_RESTART_ON_SUCCESS,
+ SERVICE_RESTART_ON_FAILURE,
+ SERVICE_RESTART_ON_ABNORMAL,
+ SERVICE_RESTART_ON_WATCHDOG,
+ SERVICE_RESTART_ON_ABORT,
+ SERVICE_RESTART_ALWAYS,
+ _SERVICE_RESTART_MAX,
+ _SERVICE_RESTART_INVALID = -1
+} ServiceRestart;
+
+typedef enum ServiceType {
+ SERVICE_SIMPLE, /* we fork and go on right-away (i.e. modern socket activated daemons) */
+ SERVICE_FORKING, /* forks by itself (i.e. traditional daemons) */
+ SERVICE_ONESHOT, /* we fork and wait until the program finishes (i.e. programs like fsck which run and need to finish before we continue) */
+ SERVICE_DBUS, /* we fork and wait until a specific D-Bus name appears on the bus */
+ SERVICE_NOTIFY, /* we fork and wait until a daemon sends us a ready message with sd_notify() */
+ SERVICE_IDLE, /* much like simple, but delay exec() until all jobs are dispatched. */
+ _SERVICE_TYPE_MAX,
+ _SERVICE_TYPE_INVALID = -1
+} ServiceType;
+
+typedef enum ServiceExecCommand {
+ SERVICE_EXEC_START_PRE,
+ SERVICE_EXEC_START,
+ SERVICE_EXEC_START_POST,
+ SERVICE_EXEC_RELOAD,
+ SERVICE_EXEC_STOP,
+ SERVICE_EXEC_STOP_POST,
+ _SERVICE_EXEC_COMMAND_MAX,
+ _SERVICE_EXEC_COMMAND_INVALID = -1
+} ServiceExecCommand;
+
+typedef enum NotifyAccess {
+ NOTIFY_NONE,
+ NOTIFY_ALL,
+ NOTIFY_MAIN,
+ _NOTIFY_ACCESS_MAX,
+ _NOTIFY_ACCESS_INVALID = -1
+} NotifyAccess;
+
+typedef enum NotifyState {
+ NOTIFY_UNKNOWN,
+ NOTIFY_READY,
+ NOTIFY_RELOADING,
+ NOTIFY_STOPPING,
+ _NOTIFY_STATE_MAX,
+ _NOTIFY_STATE_INVALID = -1
+} NotifyState;
+
+typedef enum ServiceResult {
+ SERVICE_SUCCESS,
+ SERVICE_FAILURE_RESOURCES, /* a bit of a misnomer, just our catch-all error for errnos we didn't expect */
+ SERVICE_FAILURE_TIMEOUT,
+ SERVICE_FAILURE_EXIT_CODE,
+ SERVICE_FAILURE_SIGNAL,
+ SERVICE_FAILURE_CORE_DUMP,
+ SERVICE_FAILURE_WATCHDOG,
+ SERVICE_FAILURE_START_LIMIT_HIT,
+ _SERVICE_RESULT_MAX,
+ _SERVICE_RESULT_INVALID = -1
+} ServiceResult;
+
+struct ServiceFDStore {
+ Service *service;
+
+ int fd;
+ char *fdname;
+ sd_event_source *event_source;
+
+ LIST_FIELDS(ServiceFDStore, fd_store);
+};
+
+struct Service {
+ Unit meta;
+
+ ServiceType type;
+ ServiceRestart restart;
+ ExitStatusSet restart_prevent_status;
+ ExitStatusSet restart_force_status;
+ ExitStatusSet success_status;
+
+ /* If set we'll read the main daemon PID from this file */
+ char *pid_file;
+
+ usec_t restart_usec;
+ usec_t timeout_start_usec;
+ usec_t timeout_stop_usec;
+ usec_t runtime_max_usec;
+
+ dual_timestamp watchdog_timestamp;
+ usec_t watchdog_usec;
+ sd_event_source *watchdog_event_source;
+
+ ExecCommand* exec_command[_SERVICE_EXEC_COMMAND_MAX];
+
+ ExecContext exec_context;
+ KillContext kill_context;
+ CGroupContext cgroup_context;
+
+ ServiceState state, deserialized_state;
+
+ /* The exit status of the real main process */
+ ExecStatus main_exec_status;
+
+ /* The currently executed control process */
+ ExecCommand *control_command;
+
+ /* The currently executed main process, which may be NULL if
+ * the main process got started via forking mode and not by
+ * us */
+ ExecCommand *main_command;
+
+ /* The ID of the control command currently being executed */
+ ServiceExecCommand control_command_id;
+
+ /* Runtime data of the execution context */
+ ExecRuntime *exec_runtime;
+
+ pid_t main_pid, control_pid;
+ int socket_fd;
+ bool socket_fd_selinux_context_net;
+
+ bool permissions_start_only;
+ bool root_directory_start_only;
+ bool remain_after_exit;
+ bool guess_main_pid;
+
+ /* If we shut down, remember why */
+ ServiceResult result;
+ ServiceResult reload_result;
+
+ bool main_pid_known:1;
+ bool main_pid_alien:1;
+ bool bus_name_good:1;
+ bool forbid_restart:1;
+ bool start_timeout_defined:1;
+
+ bool reset_cpu_usage:1;
+
+ char *bus_name;
+ char *bus_name_owner; /* unique name of the current owner */
+
+ char *status_text;
+ int status_errno;
+
+ FailureAction failure_action;
+
+ UnitRef accept_socket;
+
+ sd_event_source *timer_event_source;
+ PathSpec *pid_file_pathspec;
+
+ NotifyAccess notify_access;
+ NotifyState notify_state;
+
+ ServiceFDStore *fd_store;
+ unsigned n_fd_store;
+ unsigned n_fd_store_max;
+
+ char *usb_function_descriptors;
+ char *usb_function_strings;
+
+ int stdin_fd;
+ int stdout_fd;
+ int stderr_fd;
+};
+
+extern const UnitVTable service_vtable;
+
+int service_set_socket_fd(Service *s, int fd, struct Socket *socket, bool selinux_context_net);
+void service_close_socket_fd(Service *s);
+
+const char* service_restart_to_string(ServiceRestart i) _const_;
+ServiceRestart service_restart_from_string(const char *s) _pure_;
+
+const char* service_type_to_string(ServiceType i) _const_;
+ServiceType service_type_from_string(const char *s) _pure_;
+
+const char* service_exec_command_to_string(ServiceExecCommand i) _const_;
+ServiceExecCommand service_exec_command_from_string(const char *s) _pure_;
+
+const char* notify_access_to_string(NotifyAccess i) _const_;
+NotifyAccess notify_access_from_string(const char *s) _pure_;
+
+const char* notify_state_to_string(NotifyState i) _const_;
+NotifyState notify_state_from_string(const char *s) _pure_;
+
+const char* service_result_to_string(ServiceResult i) _const_;
+ServiceResult service_result_from_string(const char *s) _pure_;