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//------------------------------------------------------------------------------
// GB_mex_test39: load/unload
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_mex.h"
#include "GB_mex_errors.h"
#undef FREE_ALL
#define FREE_ALL \
{ \
if (X4 != NULL) mxFree (X4) ; \
X3 = NULL ; \
if (X != NULL) mxFree (X) ; \
X = NULL ; \
GxB_Container_free (&Container) ; \
GrB_Vector_free (&V) ; \
GrB_Matrix_free (&A) ; \
GrB_Matrix_free (&C) ; \
}
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
//--------------------------------------------------------------------------
// startup GraphBLAS
//--------------------------------------------------------------------------
GrB_Info info ;
GrB_Vector V = NULL ;
GrB_Matrix A = NULL, C = NULL ;
GxB_Container Container = NULL ;
uint32_t *X = NULL, *X2 = NULL, *X3 = NULL, *X4 = NULL, *X5 = NULL ;
bool malloc_debug = GB_mx_get_global (true) ;
uint64_t n = 10, n2 = 999, X_size, X_size2 = 911, n4 = 0, X4_size = 0,
n5 = 0, X5_size = 0 ;
GrB_Type type = NULL ;
int handling = 0 ;
//--------------------------------------------------------------------------
// test load/unload
//--------------------------------------------------------------------------
X_size = GB_IMAX (1, n * sizeof (uint32_t)) ;
X = mxMalloc (X_size) ; // X is owned by the user application
X2 = X ;
printf ("mxMalloc: X = %p\n", (void *) X) ;
OK (GrB_Vector_new (&V, GrB_FP64, 0)) ;
OK (GxB_print (V, 5)) ;
for (int64_t i = 0 ; i < n ; i++)
{
X [i] = i ;
}
int expected = GrB_INVALID_VALUE ;
ERR (GxB_Vector_load (V, (void **) &X, GrB_UINT32, n, 2, GrB_DEFAULT,
NULL)) ;
CHECK (X == X2) ; // X is still owned by the user application
// handling is GrB_DEFAULT, so after the load, X is owned by GraphBLAS
OK (GxB_Vector_load (V, (void **) &X, GrB_UINT32, n, X_size, GrB_DEFAULT,
NULL)) ;
OK (GxB_print (V, 5)) ;
CHECK (X == NULL) ; // X is not freed, but owned by V
CHECK (X2 != NULL) ; // X2 is not owned by the user application
// handling is GrB_DEFAULT, so after the unload, X is owned by the user
// application (this test function)
OK (GxB_Vector_unload (V, (void **) &X, &type, &n2, &X_size2, &handling,
NULL)) ;
OK (GxB_print (V, 5)) ;
CHECK (X == X2) ; // X is owned by the user application again
CHECK (n2 == n) ;
CHECK (X_size == X_size2) ;
CHECK (type == GrB_UINT32) ;
CHECK (handling == GrB_DEFAULT) ;
for (int64_t i = 0 ; i < n ; i++)
{
CHECK (X [i] == i) ;
}
// unload an empty vector
OK (GxB_Vector_unload (V, (void **) &X3, &type, &n2, &X_size2, &handling,
NULL)) ;
OK (GxB_print (V, 5)) ;
CHECK (X3 == NULL) ;
CHECK (n2 == 0) ;
CHECK (X_size2 == 0) ;
CHECK (type == GrB_UINT32) ;
CHECK (handling == GrB_DEFAULT) ;
OK (GrB_Vector_free (&V)) ;
OK (GrB_Vector_new (&V, GrB_UINT32, n)) ;
OK (GrB_set (V, GxB_SPARSE, GxB_SPARSITY_CONTROL)) ;
for (int64_t i = 0 ; i < n ; i++)
{
OK (GrB_Vector_setElement_UINT32 (V, 2*i, i)) ;
}
// handling should be GrB_DEFAULT, so X4 is now owned by the user
// application
OK (GxB_print (V, 5)) ;
OK (GxB_Vector_unload (V, (void **) &X4, &type, &n4, &X4_size, &handling,
NULL)) ;
OK (GxB_print (V, 5)) ;
CHECK (n4 == n) ;
CHECK (X4 != NULL) ; // X4 is owned by the user application
for (int64_t i = 0 ; i < n ; i++)
{
CHECK (X4 [i] == 2*i) ;
}
CHECK (handling == GrB_DEFAULT) ;
expected = GrB_INVALID_OBJECT ;
OK (GrB_Vector_free (&V)) ;
OK (GrB_Vector_new (&V, GrB_FP64, n)) ;
ERR (GxB_Vector_unload (V, (void **) &X5, &type, &n5, &X5_size, &handling,
NULL)) ;
OK (GrB_Vector_free (&V)) ;
//--------------------------------------------------------------------------
// test the Container with a matrix
//--------------------------------------------------------------------------
printf ("\n------------------- testing Container unload (Matrix):\n") ;
OK (GrB_Matrix_new (&A, GrB_FP64, n, n)) ;
for (int i = 0 ; i < n ; i++)
{
double x = 2*i + 0.1 ;
OK (GrB_Matrix_setElement_FP64 (A, x, i, i)) ;
}
OK (GxB_print (A, 5)) ;
OK (GxB_Container_new (&Container)) ;
OK (GxB_unload_Matrix_into_Container (A, Container, NULL)) ;
OK (GxB_print (A, 5)) ;
printf ("\n------------------- testing Container load (Matrix):\n") ;
OK (GxB_load_Matrix_from_Container (A, Container, NULL)) ;
OK (GxB_print (A, 5)) ;
//--------------------------------------------------------------------------
// test the Container with a vector
//--------------------------------------------------------------------------
printf ("\n------------------- testing Container unload (Matrix):\n") ;
OK (GrB_Vector_new (&V, GrB_FP64, n)) ;
for (int i = 0 ; i < n/2 ; i++)
{
double x = 2*i + 0.1 ;
OK (GrB_Vector_setElement_FP64 (V, x, i)) ;
}
OK (GxB_print (V, 5)) ;
OK (GxB_unload_Vector_into_Container (V, Container, NULL)) ;
OK (GxB_print (V, 5)) ;
printf ("\n------------------- testing Container load (Vector):\n") ;
OK (GxB_load_Vector_from_Container (V, Container, NULL)) ;
OK (GxB_print (V, 5)) ;
//--------------------------------------------------------------------------
// test extract with empty vectors
//--------------------------------------------------------------------------
OK (GrB_Matrix_new (&C, GrB_FP64, 0, 0)) ;
OK (GrB_Vector_clear (V)) ;
#define GET_DEEP_COPY ;
#define FREE_DEEP_COPY ;
METHOD (GxB_Matrix_extract_Vector_(C, NULL, NULL, A, V, V, NULL)) ;
OK (GxB_print (C, 5)) ;
//--------------------------------------------------------------------------
// test the container error conditions
//--------------------------------------------------------------------------
printf ("test errors ...\n") ;
OK (GrB_Matrix_free (&C)) ;
OK (GrB_Matrix_new (&C, GrB_FP64, 100, 100)) ;
OK (GxB_unload_Matrix_into_Container (C, Container, NULL)) ;
OK (GrB_Vector_free (&(Container->h))) ;
OK (GrB_Vector_new (&(Container->h), GrB_UINT64, 42)) ;
OK (GrB_Vector_assign_UINT64 (Container->h, NULL, NULL, 0, GrB_ALL, 100,
NULL)) ;
expected = GrB_INVALID_VALUE ;
ERR (GxB_load_Matrix_from_Container (C, Container, NULL)) ;
OK (GrB_Matrix_free (&C)) ;
OK (GrB_Matrix_new (&C, GrB_FP64, 100, 100)) ;
Container->format = GxB_BITMAP ;
Container->nrows = 100 ;
Container->ncols = 100 ;
ERR (GxB_load_Matrix_from_Container (C, Container, NULL)) ;
Container->format = GxB_SPARSE ;
OK (GrB_Matrix_free (&C)) ;
OK (GrB_Matrix_new (&C, GrB_FP64, 100, 100)) ;
ERR (GxB_load_Matrix_from_Container (C, Container, NULL)) ;
OK (GrB_Matrix_free (&C)) ;
OK (GxB_Container_free (&Container)) ;
OK (GxB_Container_new (&Container)) ;
OK (GrB_Matrix_new (&C, GrB_FP64, 100, 100)) ;
OK (GxB_unload_Matrix_into_Container (C, Container, NULL)) ;
void *x = Container->p->x ;
size_t x_size = Container->p->x_size ;
Container->p->x_shallow = true ;
Container->jumbled = true ;
ERR (GxB_load_Matrix_from_Container (C, Container, NULL)) ;
Container->p->x_shallow = false ;
GB_FREE_MEMORY ((void **) &x, x_size) ;
OK (GxB_Container_free (&Container)) ;
//--------------------------------------------------------------------------
// finalize GraphBLAS
//--------------------------------------------------------------------------
FREE_ALL ;
GB_mx_put_global (true) ;
printf ("\nGB_mex_test39: all tests passed\n\n") ;
}
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