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<title>Trash Stacks: GLib Reference Manual</title>
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Top  | 
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                  Description
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Home
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Up
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Prev
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Next
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Trash Stacks
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Trash Stacks — maintain a stack of unused allocated memory chunks
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Functions
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void
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g_trash_stack_push ()
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gpointer
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g_trash_stack_pop ()
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gpointer
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g_trash_stack_peek ()
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guint
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g_trash_stack_height ()
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Types and Values
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struct
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GTrashStack
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Includes
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#include <gmodule.h>
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Description
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A GTrashStack is an efficient way to keep a stack of unused allocated
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memory chunks. Each memory chunk is required to be large enough to hold
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a gpointer. This allows the stack to be maintained without any space
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overhead, since the stack pointers can be stored inside the memory chunks.
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There is no function to create a GTrashStack. A NULL GTrashStack*
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is a perfectly valid empty stack.
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There is no longer any good reason to use GTrashStack.  If you have
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extra pieces of memory, free() them and allocate them again later.
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Functions
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g_trash_stack_push ()
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void
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g_trash_stack_push (GTrashStack **stack_p,
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                    gpointer data_p);
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g_trash_stack_push has been deprecated since version 2.48 and should not be used in newly-written code.
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GTrashStack is deprecated without replacement
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Pushes a piece of memory onto a GTrashStack.
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Parameters
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stack_p
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a GTrashStack
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data_p
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the piece of memory to push on the stack.
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[not nullable]
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g_trash_stack_pop ()
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gpointer
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g_trash_stack_pop (GTrashStack **stack_p);
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g_trash_stack_pop has been deprecated since version 2.48 and should not be used in newly-written code.
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GTrashStack is deprecated without replacement
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Pops a piece of memory off a GTrashStack.
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Parameters
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stack_p
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a GTrashStack
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Returns
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 the element at the top of the stack
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g_trash_stack_peek ()
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gpointer
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g_trash_stack_peek (GTrashStack **stack_p);
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g_trash_stack_peek has been deprecated since version 2.48 and should not be used in newly-written code.
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GTrashStack is deprecated without replacement
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Returns the element at the top of a GTrashStack
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which may be NULL.
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Parameters
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stack_p
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a GTrashStack
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Returns
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 the element at the top of the stack
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g_trash_stack_height ()
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guint
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g_trash_stack_height (GTrashStack **stack_p);
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g_trash_stack_height has been deprecated since version 2.48 and should not be used in newly-written code.
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GTrashStack is deprecated without replacement
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Returns the height of a GTrashStack.
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Note that execution of this function is of O(N) complexity
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where N denotes the number of items on the stack.
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Parameters
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stack_p
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a GTrashStack
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Returns
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 the height of the stack
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Types and Values
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struct GTrashStack
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struct GTrashStack {
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  GTrashStack *next;
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};
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GTrashStack has been deprecated since version 2.48 and should not be used in newly-written code.
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GTrashStack is deprecated without replacement
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Each piece of memory that is pushed onto the stack
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is cast to a GTrashStack*.
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Members
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GTrashStack *next;
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pointer to the previous element of the stack,
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gets stored in the first sizeof (gpointer)
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bytes of the element
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