This source file includes following definitions.
- MPI_Unpack
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21 #include "ompi_config.h"
22 #include <stdio.h>
23
24 #include "ompi/mpi/c/bindings.h"
25 #include "ompi/runtime/params.h"
26 #include "ompi/communicator/communicator.h"
27 #include "ompi/errhandler/errhandler.h"
28 #include "ompi/datatype/ompi_datatype.h"
29 #include "opal/datatype/opal_convertor.h"
30 #include "ompi/memchecker.h"
31
32 #if OMPI_BUILD_MPI_PROFILING
33 #if OPAL_HAVE_WEAK_SYMBOLS
34 #pragma weak MPI_Unpack = PMPI_Unpack
35 #endif
36 #define MPI_Unpack PMPI_Unpack
37 #endif
38
39 static const char FUNC_NAME[] = "MPI_Unpack";
40
41
42 int MPI_Unpack(const void *inbuf, int insize, int *position,
43 void *outbuf, int outcount, MPI_Datatype datatype,
44 MPI_Comm comm)
45 {
46 int rc = MPI_SUCCESS;
47 opal_convertor_t local_convertor;
48 struct iovec outvec;
49 unsigned int iov_count;
50 size_t size;
51
52 MEMCHECKER(
53 memchecker_datatype(datatype);
54 memchecker_call(&opal_memchecker_base_isdefined, outbuf, outcount, datatype);
55 memchecker_comm(comm);
56 );
57
58 if (MPI_PARAM_CHECK) {
59 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
60 if (ompi_comm_invalid(comm)) {
61 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
62 FUNC_NAME);
63 }
64
65 if ((NULL == inbuf) || (NULL == position)) {
66 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
67 }
68
69 if (outcount < 0) {
70 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
71 }
72
73 OMPI_CHECK_DATATYPE_FOR_RECV(rc, datatype, outcount);
74 OMPI_ERRHANDLER_CHECK(rc, comm, rc, FUNC_NAME);
75 OMPI_CHECK_USER_BUFFER(rc, outbuf, datatype, outcount);
76 OMPI_ERRHANDLER_CHECK(rc, comm, rc, FUNC_NAME);
77 }
78
79 OPAL_CR_ENTER_LIBRARY();
80
81 if( insize > 0 ) {
82 int ret;
83 OBJ_CONSTRUCT( &local_convertor, opal_convertor_t );
84
85 opal_convertor_copy_and_prepare_for_recv( ompi_mpi_local_convertor, &(datatype->super),
86 outcount, outbuf, 0, &local_convertor );
87
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89 opal_convertor_get_packed_size( &local_convertor, &size );
90 if( (*position + size) > (unsigned int)insize ) {
91 OBJ_DESTRUCT( &local_convertor );
92 OPAL_CR_EXIT_LIBRARY();
93 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TRUNCATE, FUNC_NAME);
94 }
95
96
97 outvec.iov_base = (char*) inbuf + (*position);
98 outvec.iov_len = size;
99
100
101 iov_count = 1;
102 ret = opal_convertor_unpack( &local_convertor, &outvec, &iov_count, &size );
103 *position += size;
104 OBJ_DESTRUCT( &local_convertor );
105
106
107 if (1 != ret) {
108 rc = OMPI_ERROR;
109 }
110 }
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112 OPAL_CR_EXIT_LIBRARY();
113
114 OMPI_ERRHANDLER_RETURN(rc, comm, MPI_ERR_UNKNOWN, FUNC_NAME);
115 }