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//------------------------------------------------------------------------------
// GxB_Context_get_*: get a field in a context
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "get_set/GB_get_set.h"
//------------------------------------------------------------------------------
// GxB_Context_get_Scalar
//------------------------------------------------------------------------------
GrB_Info GxB_Context_get_Scalar
(
GxB_Context Context,
GrB_Scalar scalar,
int field
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_RETURN_IF_NULL_OR_FAULTY (Context) ;
GB_RETURN_IF_NULL (scalar) ;
GB_WHERE_1 (scalar, "GxB_Context_get_Scalar (Context, scalar, field)") ;
ASSERT_CONTEXT_OK (Context, "context for get", GB0) ;
//--------------------------------------------------------------------------
// get the field
//--------------------------------------------------------------------------
double dvalue = 0 ;
int32_t ivalue = 0 ;
switch ((int) field)
{
case GxB_CONTEXT_CHUNK : // same as GxB_CHUNK
dvalue = GB_Context_chunk_get (Context) ;
break ;
case GxB_CONTEXT_NTHREADS : // same as GxB_NTHREADS
ivalue = GB_Context_nthreads_max_get (Context) ;
break ;
case GxB_CONTEXT_GPU_ID : // same as GxB_GPU_ID
ivalue= GB_Context_gpu_id_get (Context) ;
break ;
default :
return (GrB_INVALID_VALUE) ;
}
switch ((int) field)
{
case GxB_CONTEXT_CHUNK : // same as GxB_CHUNK
info = GB_setElement ((GrB_Matrix) scalar, NULL, &dvalue, 0, 0,
GB_FP64_code, Werk) ;
break ;
default :
info = GB_setElement ((GrB_Matrix) scalar, NULL, &ivalue, 0, 0,
GB_INT32_code, Werk) ;
break ;
}
return (info) ;
}
//------------------------------------------------------------------------------
// GxB_Context_get_String
//------------------------------------------------------------------------------
GrB_Info GxB_Context_get_String
(
GxB_Context Context,
char * value,
int field
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_CHECK_INIT ;
GB_RETURN_IF_NULL_OR_FAULTY (Context) ;
GB_RETURN_IF_NULL (value) ;
ASSERT_CONTEXT_OK (Context, "context for get", GB0) ;
//--------------------------------------------------------------------------
// get the field
//--------------------------------------------------------------------------
if (field != GrB_NAME)
{
return (GrB_INVALID_VALUE) ;
}
(*value) = '\0' ;
if (Context == GxB_CONTEXT_WORLD)
{
// built-in Context
strcpy (value, "GxB_CONTEXT_WORLD") ;
}
else if (Context->user_name_size > 0)
{
// user-defined Context, with name defined by GrB_set
strcpy (value, Context->user_name) ;
}
#pragma omp flush
return (GrB_SUCCESS) ;
}
//------------------------------------------------------------------------------
// GxB_Context_get_INT
//------------------------------------------------------------------------------
GrB_Info GxB_Context_get_INT
(
GxB_Context Context,
int32_t * value,
int field
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_CHECK_INIT ;
GB_RETURN_IF_NULL_OR_FAULTY (Context) ;
GB_RETURN_IF_NULL (value) ;
ASSERT_CONTEXT_OK (Context, "context for get", GB0) ;
//--------------------------------------------------------------------------
// get the field
//--------------------------------------------------------------------------
switch ((int) field)
{
case GxB_CONTEXT_NTHREADS : // same as GxB_NTHREADS
(*value) = GB_Context_nthreads_max_get (Context) ;
break ;
case GxB_CONTEXT_GPU_ID : // same as GxB_GPU_ID
(*value) = GB_Context_gpu_id_get (Context) ;
break ;
default :
return (GrB_INVALID_VALUE) ;
}
#pragma omp flush
return (GrB_SUCCESS) ;
}
//------------------------------------------------------------------------------
// GxB_Context_get_SIZE
//------------------------------------------------------------------------------
GrB_Info GxB_Context_get_SIZE
(
GxB_Context Context,
size_t * value,
int field
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_CHECK_INIT ;
GB_RETURN_IF_NULL_OR_FAULTY (Context) ;
GB_RETURN_IF_NULL (value) ;
ASSERT_CONTEXT_OK (Context, "context for get", GB0) ;
//--------------------------------------------------------------------------
// get the field
//--------------------------------------------------------------------------
if (field != GrB_NAME)
{
return (GrB_INVALID_VALUE) ;
}
if (Context->user_name != NULL)
{
(*value) = Context->user_name_size ;
}
else
{
(*value) = GxB_MAX_NAME_LEN ;
}
return (GrB_SUCCESS) ;
}
//------------------------------------------------------------------------------
// GxB_Context_get_VOID
//------------------------------------------------------------------------------
GrB_Info GxB_Context_get_VOID
(
GxB_Context Context,
void * value,
int field
)
{
return (GrB_INVALID_VALUE) ;
}
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