pidgin/pidgin

Fix memory leak when creating an IRCv3 account
default tip
2 days ago, Markus Fischer
96d1ed6df91c
Fix memory leak when creating an IRCv3 account

Testing Done:
Created a new IRCv3 account while running in valgrind.

Reviewed at https://reviews.imfreedom.org/r/3262/
/*
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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 library 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 library; if not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif
#ifndef PURPLE_SIGNALS_H
#define PURPLE_SIGNALS_H
#include <glib.h>
#include <glib-object.h>
#include "purpleversion.h"
/**
* PurpleSignalMarshalFunc:
* @cb: The #GCallback to call.
* @args: The arguments to the function.
* @data: Userdata to pass to @cb.
* @return_val: (optional) (out): A return address for a return value.
*
* A generic function pointer type used to register signals.
*
* Since: 2.0
*/
typedef void (*PurpleSignalMarshalFunc)(GCallback cb, va_list args,
void *data, void **return_val);
G_BEGIN_DECLS
/******************************************************************************
* Signal API
*****************************************************************************/
/**
* PURPLE_SIGNAL_PRIORITY_DEFAULT:
*
* The priority of a signal connected using purple_signal_connect().
*
* See purple_signal_connect_priority()
*/
#define PURPLE_SIGNAL_PRIORITY_DEFAULT 0
/**
* PURPLE_SIGNAL_PRIORITY_HIGHEST:
*
* The largest signal priority; signals with this priority will be called
* <emphasis>last</emphasis>. (This is highest as in numerical value, not as in
* order of importance.)
*
* See purple_signal_connect_priority().
*/
#define PURPLE_SIGNAL_PRIORITY_HIGHEST 9999
/**
* PURPLE_SIGNAL_PRIORITY_LOWEST:
*
* The smallest signal priority; signals with this priority will be called
* <emphasis>first</emphasis>. (This is lowest as in numerical value, not as in
* order of importance.)
*
* See purple_signal_connect_priority().
*/
#define PURPLE_SIGNAL_PRIORITY_LOWEST -9999
/**
* purple_signal_register:
* @instance: The instance to register the signal for.
* @signal: The signal name.
* @marshal: (scope notified): The marshal function.
* @ret_type: The return type, or G_TYPE_NONE for no return type.
* @num_values: The number of values to be passed to the callbacks.
* @...: The types of the parameters for the callbacks.
*
* Registers a signal in an instance.
*
* Returns: The signal ID local to that instance, or 0 if the signal
* couldn't be registered.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
gulong purple_signal_register(void *instance, const char *signal, PurpleSignalMarshalFunc marshal, GType ret_type, int num_values, ...);
/**
* purple_signal_unregister:
* @instance: The instance to unregister the signal for.
* @signal: The signal name.
*
* Unregisters a signal in an instance.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signal_unregister(void *instance, const char *signal);
/**
* purple_signals_unregister_by_instance:
* @instance: The instance to unregister the signal for.
*
* Unregisters all signals in an instance.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signals_unregister_by_instance(void *instance);
/**
* purple_signal_connect_priority:
* @instance: The instance to connect to.
* @signal: The name of the signal to connect.
* @handle: The handle of the receiver.
* @func: (scope notified): The callback function.
* @data: The data to pass to the callback function.
* @priority: The priority with which the handler should be called. Signal
* handlers are called in ascending numerical order of
* @priority from #PURPLE_SIGNAL_PRIORITY_LOWEST to
* #PURPLE_SIGNAL_PRIORITY_HIGHEST.
*
* Connects a signal handler to a signal for a particular object.
*
* Take care not to register a handler function twice. Purple will
* not correct any mistakes for you in this area.
*
* See purple_signal_disconnect()
*
* Returns: The signal handler ID.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
gulong purple_signal_connect_priority(void *instance, const char *signal, void *handle, GCallback func, void *data, int priority);
/**
* purple_signal_connect:
* @instance: The instance to connect to.
* @signal: The name of the signal to connect.
* @handle: The handle of the receiver.
* @func: (scope notified): The callback function.
* @data: The data to pass to the callback function.
*
* Connects a signal handler to a signal for a particular object.
* (Its priority defaults to 0, aka #PURPLE_SIGNAL_PRIORITY_DEFAULT.)
*
* Take care not to register a handler function twice. Purple will
* not correct any mistakes for you in this area.
*
* See purple_signal_disconnect()
*
* Returns: The signal handler ID.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
gulong purple_signal_connect(void *instance, const char *signal, void *handle, GCallback func, void *data);
/**
* purple_signal_disconnect:
* @instance: The instance to disconnect from.
* @signal: The name of the signal to disconnect.
* @handle: The handle of the receiver.
* @func: (scope call): The registered function to disconnect.
*
* Disconnects a signal handler from a signal on an object.
*
* See purple_signal_connect()
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signal_disconnect(void *instance, const char *signal, void *handle, GCallback func);
/**
* purple_signals_disconnect_by_handle:
* @handle: The receiver handle.
*
* Removes all callbacks associated with a receiver handle.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signals_disconnect_by_handle(void *handle);
/**
* purple_signal_emit:
* @instance: The instance emitting the signal.
* @signal: The signal being emitted.
* @...: The arguments to pass to the callbacks.
*
* Emits a signal.
*
* See purple_signal_connect(), purple_signal_disconnect()
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signal_emit(void *instance, const char *signal, ...);
/**
* purple_signal_emit_return_1:
* @instance: The instance emitting the signal.
* @signal: The signal being emitted.
* @...: The arguments to pass to the callbacks.
*
* Emits a signal and returns the first non-NULL return value.
*
* Further signal handlers are NOT called after a handler returns
* something other than NULL.
*
* Returns: The first non-NULL return value
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void *purple_signal_emit_return_1(void *instance, const char *signal, ...);
/**
* purple_signals_init:
*
* Initializes the signals subsystem.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signals_init(void);
/**
* purple_signals_uninit:
*
* Uninitializes the signals subsystem.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_signals_uninit(void);
/**************************************************************************/
/* Marshal Functions */
/**************************************************************************/
/**
* purple_marshal_VOID:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with no arguments.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_VOID(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_VOID__POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with a single pointer
* argument.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_VOID__POINTER(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_VOID__POINTER_UINT:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with a pointer and
* an unsigned integer argument.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_VOID__POINTER_UINT(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_VOID__POINTER_INT_INT:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with a pointer and
* two integer arguments.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_VOID__POINTER_INT_INT(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_VOID__POINTER_INT_POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with a pointer, an
* integer, and then another pointer argument.
*
* Since: 2.3
*/
PURPLE_AVAILABLE_IN_2_3
void purple_marshal_VOID__POINTER_INT_POINTER(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_VOID__POINTER_POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with two pointer
* arguments.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_VOID__POINTER_POINTER(
GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_BOOLEAN__POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with a single pointer
* argument and returns a boolean.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_BOOLEAN__POINTER(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_BOOLEAN__POINTER_POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with two pointer
* arguments and returns a boolean.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_BOOLEAN__POINTER_POINTER(GCallback cb, va_list args, void *data, void **return_val);
/**
* purple_marshal_BOOLEAN__POINTER_POINTER_POINTER:
* @cb: (scope call): Callback this marshaller is designed to invoke
* @args: va_list of arguments to be passed to the closure
* @data: (nullable): Data to be passed to the callback
* @return_val: (nullable): Value to store the callback's return value
*
* A purple marshaller function for use with signals with three pointer
* arguments and returns a boolean.
*
* Since: 2.0
*/
PURPLE_AVAILABLE_IN_ALL
void purple_marshal_BOOLEAN__POINTER_POINTER_POINTER(GCallback cb, va_list args, void *data, void **return_val);
G_END_DECLS
#endif /* PURPLE_SIGNALS_H */