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-rw-r--r--src/3rd_party/dbus-1.7.8/dbus/dbus-resources.c290
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diff --git a/src/3rd_party/dbus-1.7.8/dbus/dbus-resources.c b/src/3rd_party/dbus-1.7.8/dbus/dbus-resources.c
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index 80fb55b2fa..0000000000
--- a/src/3rd_party/dbus-1.7.8/dbus/dbus-resources.c
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-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/* dbus-resources.c Resource tracking/limits
- *
- * Copyright (C) 2003 Red Hat Inc.
- *
- * 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
- *
- */
-
-#include <config.h>
-#include <dbus/dbus-resources.h>
-#include <dbus/dbus-internals.h>
-
-/**
- * @defgroup DBusResources Resource limits related code
- * @ingroup DBusInternals
- * @brief DBusCounter and other stuff related to resource limits
- *
- * Types and functions related to tracking resource limits,
- * such as the maximum amount of memory/unix fds a connection can use
- * for messages, etc.
- */
-
-/**
- * @defgroup DBusResourcesInternals Resource limits implementation details
- * @ingroup DBusInternals
- * @brief Resource limits implementation details
- *
- * Implementation details of resource limits code.
- *
- * @{
- */
-
-/**
- * @brief Internals of DBusCounter.
- *
- * DBusCounter internals. DBusCounter is an opaque object, it must be
- * used via accessor functions.
- */
-struct DBusCounter
-{
- int refcount; /**< reference count */
-
- long size_value; /**< current size counter value */
- long unix_fd_value; /**< current unix fd counter value */
-
-#ifdef DBUS_ENABLE_STATS
- long peak_size_value; /**< largest ever size counter value */
- long peak_unix_fd_value; /**< largest ever unix fd counter value */
-#endif
-
- long notify_size_guard_value; /**< call notify function when crossing this size value */
- long notify_unix_fd_guard_value; /**< call notify function when crossing this unix fd value */
-
- DBusCounterNotifyFunction notify_function; /**< notify function */
- void *notify_data; /**< data for notify function */
- dbus_bool_t notify_pending : 1; /**< TRUE if the guard value has been crossed */
-};
-
-/** @} */ /* end of resource limits internals docs */
-
-/**
- * @addtogroup DBusResources
- * @{
- */
-
-/**
- * Creates a new DBusCounter. DBusCounter is used
- * to count usage of some resource such as memory.
- *
- * @returns new counter or #NULL on failure
- */
-DBusCounter*
-_dbus_counter_new (void)
-{
- DBusCounter *counter;
-
- counter = dbus_new0 (DBusCounter, 1);
- if (counter == NULL)
- return NULL;
-
- counter->refcount = 1;
-
- return counter;
-}
-
-/**
- * Increments refcount of the counter
- *
- * @param counter the counter
- * @returns the counter
- */
-DBusCounter *
-_dbus_counter_ref (DBusCounter *counter)
-{
- _dbus_assert (counter->refcount > 0);
-
- counter->refcount += 1;
-
- return counter;
-}
-
-/**
- * Decrements refcount of the counter and possibly
- * finalizes the counter.
- *
- * @param counter the counter
- */
-void
-_dbus_counter_unref (DBusCounter *counter)
-{
- _dbus_assert (counter->refcount > 0);
-
- counter->refcount -= 1;
-
- if (counter->refcount == 0)
- {
-
- dbus_free (counter);
- }
-}
-
-/**
- * Adjusts the value of the size counter by the given
- * delta which may be positive or negative.
- *
- * This function may be called with locks held. After calling it, when
- * any relevant locks are no longer held you must call _dbus_counter_notify().
- *
- * @param counter the counter
- * @param delta value to add to the size counter's current value
- */
-void
-_dbus_counter_adjust_size (DBusCounter *counter,
- long delta)
-{
- long old = counter->size_value;
-
- counter->size_value += delta;
-
-#ifdef DBUS_ENABLE_STATS
- if (counter->peak_size_value < counter->size_value)
- counter->peak_size_value = counter->size_value;
-#endif
-
-#if 0
- _dbus_verbose ("Adjusting counter %ld by %ld = %ld\n",
- old, delta, counter->size_value);
-#endif
-
- if (counter->notify_function != NULL &&
- ((old < counter->notify_size_guard_value &&
- counter->size_value >= counter->notify_size_guard_value) ||
- (old >= counter->notify_size_guard_value &&
- counter->size_value < counter->notify_size_guard_value)))
- counter->notify_pending = TRUE;
-}
-
-/**
- * Calls the notify function from _dbus_counter_set_notify(),
- * if that function has been specified and the counter has crossed the
- * guard value (in either direction) since the last call to this function.
- *
- * This function must not be called with locks held, since it can call out
- * to user code.
- */
-void
-_dbus_counter_notify (DBusCounter *counter)
-{
- if (counter->notify_pending)
- {
- counter->notify_pending = FALSE;
- (* counter->notify_function) (counter, counter->notify_data);
- }
-}
-
-/**
- * Adjusts the value of the unix fd counter by the given
- * delta which may be positive or negative.
- *
- * This function may be called with locks held. After calling it, when
- * any relevant locks are no longer held you must call _dbus_counter_notify().
- *
- * @param counter the counter
- * @param delta value to add to the unix fds counter's current value
- */
-void
-_dbus_counter_adjust_unix_fd (DBusCounter *counter,
- long delta)
-{
- long old = counter->unix_fd_value;
-
- counter->unix_fd_value += delta;
-
-#ifdef DBUS_ENABLE_STATS
- if (counter->peak_unix_fd_value < counter->unix_fd_value)
- counter->peak_unix_fd_value = counter->unix_fd_value;
-#endif
-
-#if 0
- _dbus_verbose ("Adjusting counter %ld by %ld = %ld\n",
- old, delta, counter->unix_fd_value);
-#endif
-
- if (counter->notify_function != NULL &&
- ((old < counter->notify_unix_fd_guard_value &&
- counter->unix_fd_value >= counter->notify_unix_fd_guard_value) ||
- (old >= counter->notify_unix_fd_guard_value &&
- counter->unix_fd_value < counter->notify_unix_fd_guard_value)))
- counter->notify_pending = TRUE;
-}
-
-/**
- * Gets the current value of the size counter.
- *
- * @param counter the counter
- * @returns its current size value
- */
-long
-_dbus_counter_get_size_value (DBusCounter *counter)
-{
- return counter->size_value;
-}
-
-/**
- * Gets the current value of the unix fd counter.
- *
- * @param counter the counter
- * @returns its current unix fd value
- */
-long
-_dbus_counter_get_unix_fd_value (DBusCounter *counter)
-{
- return counter->unix_fd_value;
-}
-
-/**
- * Sets the notify function for this counter; the notify function is
- * called whenever the counter's values cross the guard values in
- * either direction (moving up, or moving down).
- *
- * @param counter the counter
- * @param size_guard_value the value we're notified if the size counter crosses
- * @param unix_fd_guard_value the value we're notified if the unix fd counter crosses
- * @param function function to call in order to notify
- * @param user_data data to pass to the function
- */
-void
-_dbus_counter_set_notify (DBusCounter *counter,
- long size_guard_value,
- long unix_fd_guard_value,
- DBusCounterNotifyFunction function,
- void *user_data)
-{
- counter->notify_size_guard_value = size_guard_value;
- counter->notify_unix_fd_guard_value = unix_fd_guard_value;
- counter->notify_function = function;
- counter->notify_data = user_data;
- counter->notify_pending = FALSE;
-}
-
-#ifdef DBUS_ENABLE_STATS
-long
-_dbus_counter_get_peak_size_value (DBusCounter *counter)
-{
- return counter->peak_size_value;
-}
-
-long
-_dbus_counter_get_peak_unix_fd_value (DBusCounter *counter)
-{
- return counter->peak_unix_fd_value;
-}
-#endif
-
-/** @} */ /* end of resource limits exported API */
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