/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ /* dbus-message.h DBusMessage object * * Copyright (C) 2002, 2003, 2005 Red Hat Inc. * * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later * * Licensed under the Academic Free License version 2.1 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION) #error "Only can be included directly, this file may disappear or change contents." #endif #ifndef DBUS_MESSAGE_H #define DBUS_MESSAGE_H #include #include #include #include #include #include DBUS_BEGIN_DECLS /** * @addtogroup DBusMessage * @{ */ typedef struct DBusMessage DBusMessage; /** * Opaque type representing a message iterator. Can be copied by value and * allocated on the stack. * * A DBusMessageIter usually contains no allocated memory. However, there * is one special case: after a successful call to * dbus_message_iter_open_container(), the caller is responsible for calling * either dbus_message_iter_close_container() or * dbus_message_iter_abandon_container() exactly once, with the same pair * of iterators. */ typedef struct DBusMessageIter DBusMessageIter; /** * DBusMessageIter struct; contains no public fields. */ struct DBusMessageIter { #if DBUS_SIZEOF_VOID_P > 8 void *dummy[16]; /**< Don't use this */ #else void *dummy1; /**< Don't use this */ void *dummy2; /**< Don't use this */ dbus_uint32_t dummy3; /**< Don't use this */ int dummy4; /**< Don't use this */ int dummy5; /**< Don't use this */ int dummy6; /**< Don't use this */ int dummy7; /**< Don't use this */ int dummy8; /**< Don't use this */ int dummy9; /**< Don't use this */ int dummy10; /**< Don't use this */ int dummy11; /**< Don't use this */ int pad1; /**< Don't use this */ void *pad2; /**< Don't use this */ void *pad3; /**< Don't use this */ #endif }; /** * A message iterator for which dbus_message_iter_abandon_container_if_open() * is the only valid operation. */ #if DBUS_SIZEOF_VOID_P > 8 #define DBUS_MESSAGE_ITER_INIT_CLOSED \ { \ { \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL \ } \ } #else #define DBUS_MESSAGE_ITER_INIT_CLOSED \ { \ NULL, /* dummy1 */ \ NULL, /* dummy2 */ \ 0, /* dummy3 */ \ 0, /* dummy4 */ \ 0, /* dummy5 */ \ 0, /* dummy6 */ \ 0, /* dummy7 */ \ 0, /* dummy8 */ \ 0, /* dummy9 */ \ 0, /* dummy10 */ \ 0, /* dummy11 */ \ 0, /* pad1 */ \ NULL, /* pad2 */ \ NULL /* pad3 */ \ } #endif DBUS_EXPORT DBusMessage* dbus_message_new (int message_type); DBUS_EXPORT DBusMessage* dbus_message_new_method_call (const char *bus_name, const char *path, const char *iface, const char *method); DBUS_EXPORT DBusMessage* dbus_message_new_method_return (DBusMessage *method_call); DBUS_EXPORT DBusMessage* dbus_message_new_signal (const char *path, const char *iface, const char *name); DBUS_EXPORT DBusMessage* dbus_message_new_error (DBusMessage *reply_to, const char *error_name, const char *error_message); DBUS_EXPORT DBusMessage* dbus_message_new_error_printf (DBusMessage *reply_to, const char *error_name, const char *error_format, ...) _DBUS_GNUC_PRINTF (3, 4); DBUS_EXPORT DBusMessage* dbus_message_copy (const DBusMessage *message); DBUS_EXPORT DBusMessage* dbus_message_ref (DBusMessage *message); DBUS_EXPORT void dbus_message_unref (DBusMessage *message); DBUS_EXPORT int dbus_message_get_type (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_set_path (DBusMessage *message, const char *object_path); DBUS_EXPORT const char* dbus_message_get_path (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_has_path (DBusMessage *message, const char *object_path); DBUS_EXPORT dbus_bool_t dbus_message_set_interface (DBusMessage *message, const char *iface); DBUS_EXPORT const char* dbus_message_get_interface (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_has_interface (DBusMessage *message, const char *iface); DBUS_EXPORT dbus_bool_t dbus_message_set_member (DBusMessage *message, const char *member); DBUS_EXPORT const char* dbus_message_get_member (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_has_member (DBusMessage *message, const char *member); DBUS_EXPORT dbus_bool_t dbus_message_set_error_name (DBusMessage *message, const char *name); DBUS_EXPORT const char* dbus_message_get_error_name (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_set_destination (DBusMessage *message, const char *destination); DBUS_EXPORT const char* dbus_message_get_destination (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_set_sender (DBusMessage *message, const char *sender); DBUS_EXPORT const char* dbus_message_get_sender (DBusMessage *message); DBUS_EXPORT const char* dbus_message_get_signature (DBusMessage *message); DBUS_EXPORT void dbus_message_set_no_reply (DBusMessage *message, dbus_bool_t no_reply); DBUS_EXPORT dbus_bool_t dbus_message_get_no_reply (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_is_method_call (DBusMessage *message, const char *iface, const char *method); DBUS_EXPORT dbus_bool_t dbus_message_is_signal (DBusMessage *message, const char *iface, const char *signal_name); DBUS_EXPORT dbus_bool_t dbus_message_is_error (DBusMessage *message, const char *error_name); DBUS_EXPORT dbus_bool_t dbus_message_has_destination (DBusMessage *message, const char *bus_name); DBUS_EXPORT dbus_bool_t dbus_message_has_sender (DBusMessage *message, const char *unique_bus_name); DBUS_EXPORT dbus_bool_t dbus_message_has_signature (DBusMessage *message, const char *signature); DBUS_EXPORT dbus_uint32_t dbus_message_get_serial (DBusMessage *message); DBUS_EXPORT void dbus_message_set_serial (DBusMessage *message, dbus_uint32_t serial); DBUS_EXPORT dbus_bool_t dbus_message_set_reply_serial (DBusMessage *message, dbus_uint32_t reply_serial); DBUS_EXPORT dbus_uint32_t dbus_message_get_reply_serial (DBusMessage *message); DBUS_EXPORT void dbus_message_set_auto_start (DBusMessage *message, dbus_bool_t auto_start); DBUS_EXPORT dbus_bool_t dbus_message_get_auto_start (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_get_path_decomposed (DBusMessage *message, char ***path); DBUS_EXPORT const char *dbus_message_get_container_instance (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_set_container_instance (DBusMessage *message, const char *object_path); DBUS_EXPORT dbus_bool_t dbus_message_append_args (DBusMessage *message, int first_arg_type, ...); DBUS_EXPORT dbus_bool_t dbus_message_append_args_valist (DBusMessage *message, int first_arg_type, va_list var_args); DBUS_EXPORT dbus_bool_t dbus_message_get_args (DBusMessage *message, DBusError *error, int first_arg_type, ...); DBUS_EXPORT dbus_bool_t dbus_message_get_args_valist (DBusMessage *message, DBusError *error, int first_arg_type, va_list var_args); DBUS_EXPORT dbus_bool_t dbus_message_contains_unix_fds (DBusMessage *message); DBUS_EXPORT void dbus_message_iter_init_closed (DBusMessageIter *iter); DBUS_EXPORT dbus_bool_t dbus_message_iter_init (DBusMessage *message, DBusMessageIter *iter); DBUS_EXPORT dbus_bool_t dbus_message_iter_has_next (DBusMessageIter *iter); DBUS_EXPORT dbus_bool_t dbus_message_iter_next (DBusMessageIter *iter); DBUS_EXPORT char* dbus_message_iter_get_signature (DBusMessageIter *iter); DBUS_EXPORT int dbus_message_iter_get_arg_type (DBusMessageIter *iter); DBUS_EXPORT int dbus_message_iter_get_element_type (DBusMessageIter *iter); DBUS_EXPORT void dbus_message_iter_recurse (DBusMessageIter *iter, DBusMessageIter *sub); DBUS_EXPORT void dbus_message_iter_get_basic (DBusMessageIter *iter, void *value); DBUS_EXPORT int dbus_message_iter_get_element_count(DBusMessageIter *iter); #ifndef DBUS_DISABLE_DEPRECATED /* This function returns the wire protocol size of the array in bytes, * you do not want to know that probably */ DBUS_EXPORT DBUS_DEPRECATED int dbus_message_iter_get_array_len (DBusMessageIter *iter); #endif DBUS_EXPORT void dbus_message_iter_get_fixed_array (DBusMessageIter *iter, void *value, int *n_elements); DBUS_EXPORT void dbus_message_iter_init_append (DBusMessage *message, DBusMessageIter *iter); DBUS_EXPORT dbus_bool_t dbus_message_iter_append_basic (DBusMessageIter *iter, int type, const void *value); DBUS_EXPORT dbus_bool_t dbus_message_iter_append_fixed_array (DBusMessageIter *iter, int element_type, const void *value, int n_elements); DBUS_EXPORT dbus_bool_t dbus_message_iter_open_container (DBusMessageIter *iter, int type, const char *contained_signature, DBusMessageIter *sub); DBUS_EXPORT dbus_bool_t dbus_message_iter_close_container (DBusMessageIter *iter, DBusMessageIter *sub); DBUS_EXPORT void dbus_message_iter_abandon_container (DBusMessageIter *iter, DBusMessageIter *sub); DBUS_EXPORT void dbus_message_iter_abandon_container_if_open (DBusMessageIter *iter, DBusMessageIter *sub); DBUS_EXPORT void dbus_message_lock (DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_set_error_from_message (DBusError *error, DBusMessage *message); DBUS_EXPORT dbus_bool_t dbus_message_allocate_data_slot (dbus_int32_t *slot_p); DBUS_EXPORT void dbus_message_free_data_slot (dbus_int32_t *slot_p); DBUS_EXPORT dbus_bool_t dbus_message_set_data (DBusMessage *message, dbus_int32_t slot, void *data, DBusFreeFunction free_data_func); DBUS_EXPORT void* dbus_message_get_data (DBusMessage *message, dbus_int32_t slot); DBUS_EXPORT int dbus_message_type_from_string (const char *type_str); DBUS_EXPORT const char* dbus_message_type_to_string (int type); DBUS_EXPORT dbus_bool_t dbus_message_marshal (DBusMessage *msg, char **marshalled_data_p, int *len_p); DBUS_EXPORT DBusMessage* dbus_message_demarshal (const char *str, int len, DBusError *error); DBUS_EXPORT int dbus_message_demarshal_bytes_needed (const char *str, int len); DBUS_EXPORT void dbus_message_set_allow_interactive_authorization (DBusMessage *message, dbus_bool_t allow); DBUS_EXPORT dbus_bool_t dbus_message_get_allow_interactive_authorization ( DBusMessage *message); /** * Clear a variable or struct member that contains a #DBusMessage. * If it does not contain #NULL, the message that was previously * there is unreferenced with dbus_message_unref(). * * This is very similar to dbus_clear_connection(): see that function * for more details. * * @param pointer_to_message A pointer to a variable or struct member. * pointer_to_message must not be #NULL, but *pointer_to_message * may be #NULL. */ static inline void dbus_clear_message (DBusMessage **pointer_to_message) { _dbus_clear_pointer_impl (DBusMessage, pointer_to_message, dbus_message_unref); } /** @} */ DBUS_END_DECLS #endif /* DBUS_MESSAGE_H */