text: /* -*- Mode: C; c-basic-offset:4 ; -*- */
  /* 
   *
   *   Copyright (C) 1997 University of Chicago. 
   *   See COPYRIGHT notice in top-level directory.
   */
  
  #include "mpioimpl.h"
  
  #ifdef HAVE_WEAK_SYMBOLS
  
  #if defined(HAVE_PRAGMA_WEAK)
  #pragma weak MPI_File_read_all_begin = PMPI_File_read_all_begin
  #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
  #pragma _HP_SECONDARY_DEF PMPI_File_read_all_begin MPI_File_read_all_begin
  #elif defined(HAVE_PRAGMA_CRI_DUP)
  #pragma _CRI duplicate MPI_File_read_all_begin as PMPI_File_read_all_begin
  /* end of weak pragmas */
  #endif
  
  /* Include mapping from MPI->PMPI */
  #define MPIO_BUILD_PROFILING
  #include "mpioprof.h"
  #endif
  
  /*@
      MPI_File_read_all_begin - Begin a split collective read using individual file pointer
  
  Input Parameters:
  . fh - file handle (handle)
  . count - number of elements in buffer (nonnegative integer)
  . datatype - datatype of each buffer element (handle)
  
  Output Parameters:
  . buf - initial address of buffer (choice)
  
  .N fortran
  @*/
  int MPI_File_read_all_begin(MPI_File mpi_fh, void *buf, int count, 
                              MPI_Datatype datatype)
  {
      int error_code;
      static char myname[] = "MPI_FILE_READ_ALL_BEGIN";
  
      error_code = MPIOI_File_read_all_begin(mpi_fh, (MPI_Offset) 0,
  					   ADIO_INDIVIDUAL, buf, count,
  					   datatype, myname);
  
      return error_code;
  }
  
  /* prevent multiple definitions of this routine */
  #ifdef MPIO_BUILD_PROFILING
  int MPIOI_File_read_all_begin(MPI_File mpi_fh,
  			      MPI_Offset offset,
  			      int file_ptr_type,
  			      void *buf,
  			      int count,
  			      MPI_Datatype datatype,
  			      char *myname)
  {
      int error_code, datatype_size;
      ADIO_File fh;
  
      MPIU_THREAD_CS_ENTER(ALLFUNC,);
  
      fh = MPIO_File_resolve(mpi_fh);
  
      /* --BEGIN ERROR HANDLING-- */
      MPIO_CHECK_FILE_HANDLE(fh, myname, error_code);
      MPIO_CHECK_COUNT(fh, count, myname, error_code);
      MPIO_CHECK_DATATYPE(fh, datatype, myname, error_code);
  
      if (file_ptr_type == ADIO_EXPLICIT_OFFSET && offset < 0)
      {
  	error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
  					  myname, __LINE__, MPI_ERR_ARG,
  					  "**iobadoffset", 0);
  	error_code = MPIO_Err_return_file(fh, error_code);
  	goto fn_exit;
      }
      /* --END ERROR HANDLING-- */
      
      MPI_Type_size(datatype, &datatype_size);
  
      /* --BEGIN ERROR HANDLING-- */
      MPIO_CHECK_INTEGRAL_ETYPE(fh, count, datatype_size, myname, error_code);
      MPIO_CHECK_READABLE(fh, myname, error_code);
      MPIO_CHECK_NOT_SEQUENTIAL_MODE(fh, myname, error_code);
  
      if (fh->split_coll_count) {
  	error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
  					  myname, __LINE__, MPI_ERR_IO, 
  					  "**iosplitcoll", 0);
  	error_code = MPIO_Err_return_file(fh, error_code);
  	goto fn_exit;
      }
      MPIO_CHECK_COUNT_SIZE(fh, count, datatype_size, myname, error_code);
      /* --END ERROR HANDLING-- */
  
      fh->split_coll_count = 1;
  
      ADIO_ReadStridedColl(fh, buf, count, datatype, file_ptr_type,
  			 offset, &fh->split_status, &error_code);
  
      /* --BEGIN ERROR HANDLING-- */
      if (error_code != MPI_SUCCESS)
  	error_code = MPIO_Err_return_file(fh, error_code);
      /* --END ERROR HANDLING-- */
  
  fn_exit:
      MPIU_THREAD_CS_EXIT(ALLFUNC,);
  
      return error_code;
  }
  #endif
  