/*
 * Copyright (C) by Argonne National Laboratory
 *     See COPYRIGHT in top-level directory
 */

/* -- THIS FILE IS AUTO-GENERATED -- */

#include "mpiimpl.h"

/* -- Begin Profiling Symbol Block for routine MPI_Start */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Start = PMPI_Start
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Start  MPI_Start
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Start as PMPI_Start
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Start(MPI_Request *request)  __attribute__ ((weak, alias("PMPI_Start")));
#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_Start
#define MPI_Start PMPI_Start
#endif /* MPICH_MPI_FROM_PMPI */

static int internal_Start(MPI_Request *request)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_Request *request_ptr ATTRIBUTE((unused)) = NULL;

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_ENTER;

#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_ERRTEST_ARGNULL(request, "request", mpi_errno);
            MPIR_ERRTEST_REQUEST(*request, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    MPIR_Request_get_ptr(*request, request_ptr);

#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_Request_valid_ptr(request_ptr, mpi_errno);
            if (mpi_errno) {
                goto fn_fail;
            }
            MPIR_ERRTEST_STARTREQ(request_ptr, mpi_errno);
            MPIR_ERRTEST_STARTREQ_ACTIVE(request_ptr, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ... */
    mpi_errno = MPID_Startall(1, &request_ptr);
    if (mpi_errno != MPI_SUCCESS)
        goto fn_fail;
    /* ... end of body of routine ... */

  fn_exit:
    MPIR_FUNC_TERSE_EXIT;
    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    return mpi_errno;

  fn_fail:
    /* --BEGIN ERROR HANDLINE-- */
#ifdef HAVE_ERROR_CHECKING
    mpi_errno = MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, __func__, __LINE__, MPI_ERR_OTHER,
                                     "**mpi_start", "**mpi_start %p", request);
#endif
    mpi_errno = MPIR_Err_return_comm(0, __func__, mpi_errno);
    /* --END ERROR HANDLING-- */
    goto fn_exit;
}

/*@
   MPI_Start - Initiates a communication with a persistent request handle

Input/Output Parameters:
. request - communication request (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS

.N MPI_ERR_REQUEST
.N MPI_ERR_OTHER

@*/

#ifdef ENABLE_QMPI
#ifndef MPICH_MPI_FROM_PMPI
int QMPI_Start(QMPI_Context context, int tool_id, MPI_Request *request) MPICH_API_PUBLIC
{
    return internal_Start(request);
}
#endif /* MPICH_MPI_FROM_PMPI */
int MPI_Start(MPI_Request *request)
{
    QMPI_Context context;
    QMPI_Start_t *fn_ptr;

    context.storage_stack = NULL;

    if (MPIR_QMPI_num_tools == 0)
        return QMPI_Start(context, 0, request);

    fn_ptr = (QMPI_Start_t *) MPIR_QMPI_first_fn_ptrs[MPI_START_T];

    return (*fn_ptr) (context, MPIR_QMPI_first_tool_ids[MPI_START_T], request);
}
#else /* ENABLE_QMPI */
int MPI_Start(MPI_Request *request)
{
    return internal_Start(request);
}
#endif /* ENABLE_QMPI */
