pathrex-sys 0.1.0

Native FFI bindings for SuiteSparse:GraphBLAS and LAGraph used by the pathrex crate.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147

//------------------------------------------------------------------------------
// LG_check_export: export G->A for testing
//------------------------------------------------------------------------------

// LAGraph, (c) 2019-2022 by The LAGraph Contributors, All Rights Reserved.
// SPDX-License-Identifier: BSD-2-Clause
//
// For additional details (including references to third party source code and
// other files) see the LICENSE file or contact permission@sei.cmu.edu. See
// Contributors.txt for a full list of contributors. Created, in part, with
// funding and support from the U.S. Government (see Acknowledgments.txt file).
// DM22-0790

// Contributed by Timothy A. Davis, Texas A&M University

//------------------------------------------------------------------------------

// Export G->A in CSR format, for testing only.
// See test_export for a brutal memory test of this method.

#define LG_FREE_ALL                             \
{                                               \
    LAGraph_Free ((void **) Ap_handle, NULL) ;  \
    LAGraph_Free ((void **) Aj_handle, NULL) ;  \
    LAGraph_Free ((void **) Ax_handle, NULL) ;  \
}

#include "LG_internal.h"
#include "LG_test.h"

int LG_check_export
(
    // input
    LAGraph_Graph G,        // export G->A in CSR format
    // output
    GrB_Index **Ap_handle,  // size Ap_len on output
    GrB_Index **Aj_handle,  // size Aj_len on output
    void **Ax_handle,       // size Ax_len * typesize on output
    GrB_Index *Ap_len,
    GrB_Index *Aj_len,
    GrB_Index *Ax_len,
    size_t *typesize,       // size of the type of A
    char *msg
)
{
    LG_CLEAR_MSG ;

    GrB_Index *Ap = NULL, *Aj = NULL ;
    void *Ax = NULL ;
    LG_TRY (LAGraph_CheckGraph (G, msg)) ;

    LG_ASSERT_MSG (Ap_handle != NULL, GrB_NULL_POINTER, "&Ap is NULL") ;
    LG_ASSERT_MSG (Aj_handle != NULL, GrB_NULL_POINTER, "&Aj is NULL") ;
    LG_ASSERT_MSG (Ax_handle != NULL, GrB_NULL_POINTER, "&Ax is NULL") ;
    LG_ASSERT_MSG (Ap_len != NULL, GrB_NULL_POINTER, "&Ap_len is NULL") ;
    LG_ASSERT_MSG (Aj_len != NULL, GrB_NULL_POINTER, "&Aj_len is NULL") ;
    LG_ASSERT_MSG (Ax_len != NULL, GrB_NULL_POINTER, "&Ax_len is NULL") ;
    LG_ASSERT_MSG (typesize != NULL, GrB_NULL_POINTER, "&typesize is NULL") ;

    // get the type of G->A
    GrB_Type atype = NULL ;
    char atype_name [LAGRAPH_MAX_NAME_LEN] ;
    LG_TRY (LAGraph_Matrix_TypeName (atype_name, G->A, msg)) ;
    LG_TRY (LAGraph_TypeFromName (&atype, atype_name, msg)) ;

    size_t s = 0 ;
    if      (atype == GrB_BOOL  ) s = sizeof (bool    ) ;
    else if (atype == GrB_INT8  ) s = sizeof (int8_t  ) ;
    else if (atype == GrB_INT16 ) s = sizeof (int16_t ) ;
    else if (atype == GrB_INT32 ) s = sizeof (int32_t ) ;
    else if (atype == GrB_INT64 ) s = sizeof (int64_t ) ;
    else if (atype == GrB_UINT8 ) s = sizeof (uint8_t ) ;
    else if (atype == GrB_UINT16) s = sizeof (uint16_t) ;
    else if (atype == GrB_UINT32) s = sizeof (uint32_t) ;
    else if (atype == GrB_UINT64) s = sizeof (uint64_t) ;
    else if (atype == GrB_FP32  ) s = sizeof (float   ) ;
    else if (atype == GrB_FP64  ) s = sizeof (double  ) ;
    LG_ASSERT_MSG (s != 0, GrB_NOT_IMPLEMENTED, "unsupported type") ;
    (*typesize) = s ;

    GRB_TRY (GrB_Matrix_exportSize (Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT,
        G->A)) ;
    LG_TRY (LAGraph_Malloc ((void **) Ap_handle, *Ap_len, sizeof (GrB_Index), msg)) ;
    LG_TRY (LAGraph_Malloc ((void **) Aj_handle, *Aj_len, sizeof (GrB_Index), msg)) ;
    LG_TRY (LAGraph_Malloc ((void **) Ax_handle, *Ax_len, s, msg)) ;
    Ap = (*Ap_handle) ;
    Aj = (*Aj_handle) ;
    Ax = (*Ax_handle) ;

    if      (atype == GrB_BOOL  )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (bool     *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_INT8  )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (int8_t   *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_INT16 )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (int16_t  *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_INT32 )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (int32_t  *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_INT64 )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (int64_t  *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_UINT8 )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (uint8_t  *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_UINT16)
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (uint16_t *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_UINT32)
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (uint32_t *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_UINT64)
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (uint64_t *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_FP32  )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (float    *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }
    else if (atype == GrB_FP64  )
    {
        GRB_TRY (GrB_Matrix_export (Ap, Aj, (double   *) Ax,
            Ap_len, Aj_len, Ax_len, GrB_CSR_FORMAT, G->A)) ;
    }

    return (GrB_SUCCESS) ;
}