MaplePushGMPAllocators
push a set of GMP memory management functions
MaplePopGMPAllocators
pop a set of GMP memory management functions
Calling Sequence
Parameters
Description
Examples
MaplePushGMPAllocators(kv, void *(GMP_DECL *malloc)( size_t ), void *(GMP_DECL *realloc)( void *, size_t, size_t ), void (GMP_DECL *free)( void *, size_t ) )
MaplePopGMPAllocators(kv)
kv
-
kernel handle of type MKernelVector
malloc, realloc, free
memory management functions for GMP
Maple uses the GMP library internally to perform integer calculations. If an external call library wants to use the GMP library, it should override the GMP memory management functions.
The MaplePushGMPAllocator and MaplePopGMPAllocator functions allow external code to register set of thread local memory management functions without interfering with Maple's internal memory management.
GMP's function mp_set_memory_functions should not be used in a Maple external calling library.
If an exception occurs between a call to MaplePushGMPAllocators and MaplePopGMPAllocators, the pushed GMP allocators will be automatically popped off the stack, so there is no need to call MaplePopGMPAllocators.
These functions can only be called from threads created within Maple or registered with the MapleRegisterThread function.
#include "maplec.h"
ALGEB M_DECL DoGMPWork( MKernelVector kv, ALGEB *args )
{
MaplePushGMPAllocators( kv, ext_malloc, ext_realloc, ext_free );
CallGMPRoutines( args );
MaplePopGMPAllocators( kv );
return ToMapleNULL( kv );
}
See Also
CustomWrapper
define_external
eval
OpenMaple
OpenMaple/C/API
OpenMaple/C/Examples
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