logind: add ListInhibitors Varlink method
The Varlink ListInhibitors method is the counterpart of D-Bus ListInhibitors. Like its D-Bus counterpart it is zero-filter and streams the full list of currently registered inhibitors using the SD_VARLINK_METHOD_MORE pattern, returning InhibitorInfo objects with Id, What, Who, Why, Mode, UID, PID, and Since fields. There is no D-Bus GetInhibitor getter to fold in, so no unique-key filter is introduced here.
This commit is contained in:
Yaping Li
@@ -230,9 +230,60 @@ static SD_VARLINK_DEFINE_METHOD_FULL(
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SD_VARLINK_FIELD_COMMENT("Runtime information of the seat"),
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SD_VARLINK_DEFINE_OUTPUT_BY_TYPE(runtime, SeatRuntime, 0));
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SD_VARLINK_DEFINE_ENUM_TYPE(
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InhibitMode,
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SD_VARLINK_FIELD_COMMENT("Hard inhibition; blocks the operation entirely"),
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SD_VARLINK_DEFINE_ENUM_VALUE(block),
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SD_VARLINK_FIELD_COMMENT("Weak hard inhibition; like block, but the user who set it can override it without polkit authorization"),
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SD_VARLINK_DEFINE_ENUM_VALUE(block_weak),
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SD_VARLINK_FIELD_COMMENT("Soft inhibition; delays the operation but ultimately permits it"),
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SD_VARLINK_DEFINE_ENUM_VALUE(delay));
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SD_VARLINK_DEFINE_ENUM_TYPE(
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InhibitWhat,
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SD_VARLINK_DEFINE_ENUM_VALUE(shutdown),
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SD_VARLINK_DEFINE_ENUM_VALUE(sleep),
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SD_VARLINK_DEFINE_ENUM_VALUE(idle),
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SD_VARLINK_DEFINE_ENUM_VALUE(handle_power_key),
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SD_VARLINK_DEFINE_ENUM_VALUE(handle_suspend_key),
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SD_VARLINK_DEFINE_ENUM_VALUE(handle_hibernate_key),
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SD_VARLINK_DEFINE_ENUM_VALUE(handle_lid_switch),
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SD_VARLINK_DEFINE_ENUM_VALUE(handle_reboot_key));
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static SD_VARLINK_DEFINE_STRUCT_TYPE(
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InhibitorContext,
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SD_VARLINK_FIELD_COMMENT("The inhibitor identifier"),
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SD_VARLINK_DEFINE_FIELD(Id, SD_VARLINK_STRING, 0),
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SD_VARLINK_FIELD_COMMENT("What is being inhibited"),
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SD_VARLINK_DEFINE_FIELD_BY_TYPE(What, InhibitWhat, SD_VARLINK_ARRAY),
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SD_VARLINK_FIELD_COMMENT("A human-readable descriptive string of who is taking the inhibition"),
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SD_VARLINK_DEFINE_FIELD(Who, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
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SD_VARLINK_FIELD_COMMENT("A human-readable descriptive string of why the inhibition is taken"),
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SD_VARLINK_DEFINE_FIELD(Why, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
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SD_VARLINK_FIELD_COMMENT("The inhibition mode"),
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SD_VARLINK_DEFINE_FIELD_BY_TYPE(Mode, InhibitMode, 0),
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SD_VARLINK_FIELD_COMMENT("The UID of the user taking the inhibition"),
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SD_VARLINK_DEFINE_FIELD(UID, SD_VARLINK_INT, 0));
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static SD_VARLINK_DEFINE_STRUCT_TYPE(
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InhibitorRuntime,
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SD_VARLINK_FIELD_COMMENT("The PID of the process taking the inhibition"),
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SD_VARLINK_DEFINE_FIELD_BY_TYPE(PID, ProcessId, SD_VARLINK_NULLABLE),
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SD_VARLINK_FIELD_COMMENT("The inhibitor timestamps"),
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SD_VARLINK_DEFINE_FIELD_BY_TYPE(Since, Timestamp, SD_VARLINK_NULLABLE));
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static SD_VARLINK_DEFINE_METHOD_FULL(
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ListInhibitors,
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SD_VARLINK_REQUIRES_MORE,
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SD_VARLINK_FIELD_COMMENT("Configuration of the inhibitor"),
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SD_VARLINK_DEFINE_OUTPUT_BY_TYPE(context, InhibitorContext, 0),
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SD_VARLINK_FIELD_COMMENT("Runtime information of the inhibitor"),
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SD_VARLINK_DEFINE_OUTPUT_BY_TYPE(runtime, InhibitorRuntime, 0));
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static SD_VARLINK_DEFINE_ERROR(NoSuchSession);
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static SD_VARLINK_DEFINE_ERROR(NoSuchUser);
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static SD_VARLINK_DEFINE_ERROR(NoSuchSeat);
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static SD_VARLINK_DEFINE_ERROR(NoSuchInhibitor);
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static SD_VARLINK_DEFINE_ERROR(AlreadySessionMember);
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static SD_VARLINK_DEFINE_ERROR(VirtualTerminalAlreadyTaken);
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static SD_VARLINK_DEFINE_ERROR(TooManySessions);
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@@ -259,26 +310,38 @@ SD_VARLINK_DEFINE_INTERFACE(
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&vl_method_CreateSession,
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SD_VARLINK_SYMBOL_COMMENT("Releases an existing session. Currently, will be refused unless originating from the session to release itself."),
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&vl_method_ReleaseSession,
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SD_VARLINK_SYMBOL_COMMENT("Lists current sessions. If an ID or PID filter is provided, returns the single matching session; otherwise streams all current sessions (requires the 'more' flag)."),
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SD_VARLINK_SYMBOL_COMMENT("Lists current sessions. If an Id or PID filter is provided, returns the single matching session; otherwise streams all current sessions (requires the 'more' flag)."),
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&vl_method_ListSessions,
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SD_VARLINK_SYMBOL_COMMENT("Configuration aspects of a user"),
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&vl_type_UserContext,
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SD_VARLINK_SYMBOL_COMMENT("Runtime state and dynamic information of a user"),
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&vl_type_UserRuntime,
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SD_VARLINK_SYMBOL_COMMENT("Lists current users. If a UID or PID filter is provided, returns the single matching user; otherwise streams all current users (requires the 'more' flag). If called with no parameters and no 'more' flag, resolves to the caller's user."),
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SD_VARLINK_SYMBOL_COMMENT("Lists current users. If a UID or PID filter is provided, returns the single matching user; otherwise streams all current users (requires the 'more' flag)."),
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&vl_method_ListUsers,
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SD_VARLINK_SYMBOL_COMMENT("Configuration aspects of a seat"),
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&vl_type_SeatContext,
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SD_VARLINK_SYMBOL_COMMENT("Runtime state and dynamic information of a seat"),
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&vl_type_SeatRuntime,
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SD_VARLINK_SYMBOL_COMMENT("Lists current seats. If an Id filter is provided (or the caller has a session), returns the single matching seat; otherwise streams all current seats (requires the 'more' flag). If called with no parameters and no 'more' flag, resolves to the caller's seat."),
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SD_VARLINK_SYMBOL_COMMENT("Lists current seats. If an Id filter is provided, returns the single matching seat; otherwise streams all current seats (requires the 'more' flag)."),
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&vl_method_ListSeats,
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SD_VARLINK_SYMBOL_COMMENT("Inhibition mode"),
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&vl_type_InhibitMode,
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SD_VARLINK_SYMBOL_COMMENT("Operations that can be inhibited"),
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&vl_type_InhibitWhat,
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SD_VARLINK_SYMBOL_COMMENT("Configuration aspects of an inhibitor"),
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&vl_type_InhibitorContext,
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SD_VARLINK_SYMBOL_COMMENT("Runtime state and dynamic information of an inhibitor"),
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&vl_type_InhibitorRuntime,
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SD_VARLINK_SYMBOL_COMMENT("Lists all current inhibitors."),
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&vl_method_ListInhibitors,
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SD_VARLINK_SYMBOL_COMMENT("No session by this name found"),
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&vl_error_NoSuchSession,
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SD_VARLINK_SYMBOL_COMMENT("No seat by this name found"),
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&vl_error_NoSuchSeat,
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SD_VARLINK_SYMBOL_COMMENT("No user by this UID found"),
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&vl_error_NoSuchUser,
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SD_VARLINK_SYMBOL_COMMENT("No inhibitor found"),
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&vl_error_NoSuchInhibitor,
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SD_VARLINK_SYMBOL_COMMENT("Process already member of a session"),
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&vl_error_AlreadySessionMember,
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SD_VARLINK_SYMBOL_COMMENT("The specified virtual terminal (VT) is already taken by another session"),
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@@ -5,5 +5,7 @@
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extern const sd_varlink_symbol vl_type_SessionType;
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extern const sd_varlink_symbol vl_type_SessionClass;
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extern const sd_varlink_symbol vl_type_InhibitMode;
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extern const sd_varlink_symbol vl_type_InhibitWhat;
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extern const sd_varlink_interface vl_interface_io_systemd_Login;
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