/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
/* -- Begin Profiling Symbol Block for routine MPI_Alloc_mem */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Alloc_mem = PMPI_Alloc_mem
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Alloc_mem MPI_Alloc_mem
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Alloc_mem as PMPI_Alloc_mem
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Alloc_mem(MPI_Aint size, MPI_Info info, void *baseptr)
__attribute__ ((weak, alias("PMPI_Alloc_mem")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Alloc_mem
#define MPI_Alloc_mem PMPI_Alloc_mem
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Alloc_mem
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Alloc_mem - Allocate memory for message passing and RMA
Input Parameters:
+ size - size of memory segment in bytes (nonnegative integer)
- info - info argument (handle)
Output Parameters:
. baseptr - pointer to beginning of memory segment allocated
Notes:
Using this routine from Fortran requires that the Fortran compiler accept
a common pointer extension. See Section 4.11 (Memory Allocation) in the
MPI-2 standard for more information and examples.
Also note that while 'baseptr' is a 'void *' type, this is
simply to allow easy use of any pointer object for this parameter.
In fact, this argument is really a 'void **' type, that is, a
pointer to a pointer.
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_INFO
.N MPI_ERR_ARG
.N MPI_ERR_NO_MEM
@*/
int MPI_Alloc_mem(MPI_Aint size, MPI_Info info, void *baseptr)
{
int mpi_errno = MPI_SUCCESS;
void *ap;
MPIR_Info *info_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_ALLOC_MEM);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_ALLOC_MEM);
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_ARGNEG(size, "size", mpi_errno);
MPIR_ERRTEST_ARGNULL(baseptr, "baseptr", mpi_errno);
MPIR_ERRTEST_INFO_OR_NULL(info, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
MPIR_Info_get_ptr(info, info_ptr);
/* ... body of routine ... */
MPIR_Ensure_Aint_fits_in_pointer(size);
ap = MPID_Alloc_mem(size, info_ptr);
/* --BEGIN ERROR HANDLING-- */
if (!ap) {
mpi_errno =
MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__,
MPI_ERR_NO_MEM, "**allocmem", 0);
goto fn_fail;
}
/* --END ERROR HANDLING-- */
MPL_VG_MEM_INIT(ap, size);
*(void **) baseptr = ap;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_ALLOC_MEM);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_alloc_mem", "**mpi_alloc_mem %d %I %p", size, info,
baseptr);
}
#endif
mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}