va_gc Struct Reference

#include <vec.h>

Inheritance diagram for va_gc:

Public Types
typedef vl_embed	default_layout

Public Member Functions
template<typename T , typename A >
void	reserve (vec< T, A, vl_embed > *&v, unsigned reserve, bool exact MEM_STAT_DECL)

Static Public Member Functions
template<typename T , typename A >
static void	reserve (vec< T, A, vl_embed > *&, unsigned, bool CXX_MEM_STAT_INFO)
template<typename T , typename A >
static void	release (vec< T, A, vl_embed > *&v)

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Detailed Description

   Allocator type for GC vectors.  Notice that we need the structure
   declaration even if GC is not enabled.  

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Member Typedef Documentation

typedef vl_embed va_gc::default_layout

     Use vl_embed as the default layout for GC vectors.  Due to GTY
     limitations, GC vectors must always be pointers, so it is more
     efficient to use a pointer to the vl_embed layout, rather than
     using a pointer to a pointer as would be the case with vl_ptr.  

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Member Function Documentation

template<typename T , typename A >

void va_gc::release ( vec< T, A, vl_embed > *&  v )

inlinestatic

   Free GC memory used by V and reset V to NULL.  

Referenced by va_heap::release().

template<typename T , typename A >

static void va_gc::reserve ( vec< T, A, vl_embed > *&  , unsigned  , bool  CXX_MEM_STAT_INFO  )

static

Referenced by va_heap::release().

template<typename T , typename A >

void va_gc::reserve	(	vec< T, A, vl_embed > *&	v,
		unsigned	reserve,
		bool exact	MEM_STAT_DECL
	)

   Allocator for GC memory.  Ensure there are at least RESERVE free
   slots in V.  If EXACT is true, grow exactly, else grow
   exponentially.  As a special case, if the vector had not been
   allocated and and RESERVE is 0, no vector will be created.  

     Calculate the amount of space we want.  

     Ask the allocator how much space it will really give us.  

     Adjust the number of slots accordingly.  

     And finally, recalculate the amount of space we ask for.  

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The documentation for this struct was generated from the following file:

• vec.h