diff options
Diffstat (limited to 'src/H5Fmpio.c')
| -rw-r--r-- | src/H5Fmpio.c | 88 |
1 files changed, 54 insertions, 34 deletions
diff --git a/src/H5Fmpio.c b/src/H5Fmpio.c index b9f2238..4c24621 100644 --- a/src/H5Fmpio.c +++ b/src/H5Fmpio.c @@ -38,9 +38,6 @@ * that the number of bytes read is always equal to the number * requested. This kluge is activated by #ifdef MPI_KLUGE0202. * - * H5F_MPIOff_to_haddr and H5F_haddr_to_MPIOff - * - For now, we assume that MPI_Offset and haddr_t - * are the same size. Needs to be generalized. */ #include <mpi.h> #include <mpio.h> @@ -70,8 +67,8 @@ static herr_t H5F_mpio_read(H5F_low_t *lf, const haddr_t *addr, static herr_t H5F_mpio_write(H5F_low_t *lf, const haddr_t *addr, size_t size, const uint8 *buf); static herr_t H5F_mpio_flush(H5F_low_t *lf); -static haddr_t H5F_MPIOff_to_haddr( MPI_Offset mpi_off ); -static MPI_Offset H5F_haddr_to_MPIOff( haddr_t addr ); +static herr_t H5F_MPIOff_to_haddr( MPI_Offset mpi_off, haddr_t *addr); +static herr_t H5F_haddr_to_MPIOff( haddr_t addr, MPI_Offset *mpi_off); const H5F_low_class_t H5F_LOW_MPIO[1] = { @@ -261,7 +258,12 @@ H5F_mpio_open(const char *name, uintn flags, H5F_search_t *key /*out */ ) MPI_Error_string( mpierr, mpierrmsg, &msglen ); HRETURN_ERROR(H5E_IO, H5E_CANTOPENFILE, NULL, mpierrmsg ); } else { - haddr_t new_eof = H5F_MPIOff_to_haddr( size ); + haddr_t new_eof; + if (SUCCEED != H5F_MPIOff_to_haddr( size, &new_eof )) { + MPI_File_close( &(lf->u.mpio.f) ); + HRETURN_ERROR(H5E_IO, H5E_CANTOPENFILE, NULL, + "couldn't convert size to haddr_t" ); + } H5F_low_seteof( lf, &new_eof ); } @@ -370,9 +372,18 @@ H5F_mpio_read(H5F_low_t *lf, const haddr_t *addr, size_t size, uint8 *buf) if (0 == size) HRETURN(SUCCEED); - /* Read the data. */ - mpi_off = H5F_haddr_to_MPIOff( *addr ); + /* numeric conversion of offset and size */ + if (SUCCEED != H5F_haddr_to_MPIOff( *addr, &mpi_off )) { + HRETURN_ERROR(H5E_IO, H5E_READERROR, FAIL, + "couldn't convert addr to MPIOffset" ); + } size_i = (int)size; + if (size_i != size) { /* check type conversion */ + HRETURN_ERROR(H5E_IO, H5E_READERROR, FAIL, + "couldn't convert size to int" ); + } + + /* Read the data. */ mpierr = MPI_File_read_at( lf->u.mpio.f, mpi_off, (void*) buf, size_i, MPI_BYTE, &mpi_stat ); if (mpierr != MPI_SUCCESS) { @@ -446,9 +457,8 @@ H5F_mpio_write(H5F_low_t *lf, const haddr_t *addr, size_t size, { MPI_Offset mpi_off; MPI_Status mpi_stat; - int mpierr; + int mpierr, msglen, size_i; char mpierrmsg[MPI_MAX_ERROR_STRING]; - int msglen; FUNC_ENTER(H5F_mpio_write, FAIL); #ifdef H5F_MPIO_DEBUG @@ -459,10 +469,20 @@ H5F_mpio_write(H5F_low_t *lf, const haddr_t *addr, size_t size, if (0 == size) HRETURN(SUCCEED); + /* numeric conversion of offset and size */ + if (SUCCEED != H5F_haddr_to_MPIOff( *addr, &mpi_off )) { + HRETURN_ERROR(H5E_IO, H5E_READERROR, FAIL, + "couldn't convert addr to MPIOffset" ); + } + size_i = (int)size; + if (size_i != size) { /* check type conversion */ + HRETURN_ERROR(H5E_IO, H5E_READERROR, FAIL, + "couldn't convert size to int" ); + } + /* Write the data. */ - mpi_off = H5F_haddr_to_MPIOff( *addr ); mpierr = MPI_File_write_at( lf->u.mpio.f, mpi_off, (void*) buf, - (int) size, MPI_BYTE, &mpi_stat ); + size_i, MPI_BYTE, &mpi_stat ); if (mpierr != MPI_SUCCESS) { MPI_Error_string( mpierr, mpierrmsg, &msglen ); HRETURN_ERROR(H5E_IO, H5E_READERROR, FAIL, mpierrmsg ); @@ -517,17 +537,16 @@ H5F_mpio_flush(H5F_low_t *lf) } /*------------------------------------------------------------------------- - * Function: H5F_MPIOff_to_haddr(size) ); + * Function: H5F_MPIOff_to_haddr * * Purpose: Convert an MPI_Offset value to haddr_t. * * Problems and limitations: - * For now, we assume that MPI_Offset and haddr_t - * are the same size. Needs to be generalized. * - * Return: Success: the offset value, as an hddr_t. + * Return: Success: return value is SUCCEED + * and the haddr_t contains the converted value * - * Failure: 0 + * Failure: return value is FAIL, the haddr_t is undefined * * Programmer: * January 30, 1998 @@ -536,28 +555,29 @@ H5F_mpio_flush(H5F_low_t *lf) * *------------------------------------------------------------------------- */ -static haddr_t -H5F_MPIOff_to_haddr( MPI_Offset mpi_off ) +static herr_t +H5F_MPIOff_to_haddr( MPI_Offset mpi_off, haddr_t *addr ) { - haddr_t addr; + herr_t ret_val = FAIL; - addr.offset = (uint64) mpi_off; + addr->offset = (uint64) mpi_off; + if (addr->offset == mpi_off) + ret_val = SUCCEED; - return(addr); + return (ret_val); } /*------------------------------------------------------------------------- - * Function: H5F_haddr_to_MPIOff(size) ); + * Function: H5F_haddr_to_MPIOff * * Purpose: Convert an haddr_t value to MPI_Offset. * * Problems and limitations: - * For now, we assume that MPI_Offset and haddr_t - * are the same size. Needs to be generalized. * - * Return: Success: the offset value, as an MPI_Offset. + * Return: Success: return value is SUCCEED + * and the MPIOffset contains the converted value * - * Failure: 0 + * Failure: return value is FAIL, the MPIOffset is undefined * * Programmer: * January 30, 1998 @@ -566,14 +586,14 @@ H5F_MPIOff_to_haddr( MPI_Offset mpi_off ) * *------------------------------------------------------------------------- */ -static MPI_Offset -H5F_haddr_to_MPIOff( haddr_t addr ) +static herr_t +H5F_haddr_to_MPIOff( haddr_t addr, MPI_Offset *mpi_off ) { - MPI_Offset mpi_off; - - FUNC_ENTER(H5F_haddr_to_MPIOff, (MPI_Offset)0); + herr_t ret_val = FAIL; - mpi_off = (MPI_Offset) addr.offset; + *mpi_off = (MPI_Offset) addr.offset; + if (*mpi_off == addr.offset) + ret_val = SUCCEED; - FUNC_LEAVE(mpi_off); + return (ret_val); } |