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265 lines
9.5 KiB
C
265 lines
9.5 KiB
C
/* Common declarations for all of GNU Fortran libcaf implementations.
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Copyright (C) 2011-2018 Free Software Foundation, Inc.
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Contributed by Tobias Burnus <burnus@net-b.de>
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This file is part of the GNU Fortran Coarray Runtime Library (libcaf).
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Libcaf is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libcaf is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef LIBCAF_H
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#define LIBCAF_H
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#include <stdbool.h>
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#include <stddef.h> /* For size_t. */
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#include "libgfortran.h"
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#if 0
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#ifndef __GNUC__
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#define __attribute__(x)
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#define likely(x) (x)
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#define unlikely(x) (x)
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#else
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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#endif
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/* Definitions of the Fortran 2008 standard; need to kept in sync with
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ISO_FORTRAN_ENV, cf. gcc/fortran/libgfortran.h. */
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typedef enum
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{
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CAF_STAT_UNLOCKED = 0,
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CAF_STAT_LOCKED,
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CAF_STAT_LOCKED_OTHER_IMAGE,
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CAF_STAT_STOPPED_IMAGE = 6000,
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CAF_STAT_FAILED_IMAGE = 6001
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}
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caf_stat_codes_t;
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/* Describes what type of array we are registerring. Keep in sync with
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gcc/fortran/trans.h. */
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typedef enum caf_register_t {
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CAF_REGTYPE_COARRAY_STATIC,
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CAF_REGTYPE_COARRAY_ALLOC,
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CAF_REGTYPE_LOCK_STATIC,
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CAF_REGTYPE_LOCK_ALLOC,
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CAF_REGTYPE_CRITICAL,
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CAF_REGTYPE_EVENT_STATIC,
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CAF_REGTYPE_EVENT_ALLOC,
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CAF_REGTYPE_COARRAY_ALLOC_REGISTER_ONLY,
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CAF_REGTYPE_COARRAY_ALLOC_ALLOCATE_ONLY
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}
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caf_register_t;
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/* Describes the action to take on _caf_deregister. Keep in sync with
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gcc/fortran/trans.h. */
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typedef enum caf_deregister_t {
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CAF_DEREGTYPE_COARRAY_DEREGISTER,
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CAF_DEREGTYPE_COARRAY_DEALLOCATE_ONLY
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}
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caf_deregister_t;
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typedef void* caf_token_t;
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typedef void * caf_team_t;
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typedef gfc_array_void gfc_descriptor_t;
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/* Linked list of static coarrays registered. */
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typedef struct caf_static_t {
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caf_token_t token;
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struct caf_static_t *prev;
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}
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caf_static_t;
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/* When there is a vector subscript in this dimension, nvec == 0, otherwise,
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lower_bound, upper_bound, stride contains the bounds relative to the declared
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bounds; kind denotes the integer kind of the elements of vector[]. */
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typedef struct caf_vector_t {
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size_t nvec;
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union {
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struct {
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void *vector;
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int kind;
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} v;
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struct {
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ptrdiff_t lower_bound, upper_bound, stride;
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} triplet;
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} u;
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}
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caf_vector_t;
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typedef enum caf_ref_type_t {
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/* Reference a component of a derived type, either regular one or an
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allocatable or pointer type. For regular ones idx in caf_reference_t is
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set to -1. */
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CAF_REF_COMPONENT,
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/* Reference an allocatable array. */
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CAF_REF_ARRAY,
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/* Reference a non-allocatable/non-pointer array. */
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CAF_REF_STATIC_ARRAY
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} caf_ref_type_t;
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typedef enum caf_array_ref_t {
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/* No array ref. This terminates the array ref. */
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CAF_ARR_REF_NONE = 0,
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/* Reference array elements given by a vector. Only for this mode
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caf_reference_t.u.a.dim[i].v is valid. */
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CAF_ARR_REF_VECTOR,
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/* A full array ref (:). */
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CAF_ARR_REF_FULL,
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/* Reference a range on elements given by start, end and stride. */
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CAF_ARR_REF_RANGE,
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/* Only a single item is referenced given in the start member. */
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CAF_ARR_REF_SINGLE,
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/* An array ref of the kind (i:), where i is an arbitrary valid index in the
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array. The index i is given in the start member. */
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CAF_ARR_REF_OPEN_END,
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/* An array ref of the kind (:i), where the lower bound of the array ref
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is given by the remote side. The index i is given in the end member. */
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CAF_ARR_REF_OPEN_START
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} caf_array_ref_t;
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/* References to remote components of a derived type. */
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typedef struct caf_reference_t {
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/* A pointer to the next ref or NULL. */
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struct caf_reference_t *next;
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/* The type of the reference. */
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/* caf_ref_type_t, replaced by int to allow specification in fortran FE. */
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int type;
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/* The size of an item referenced in bytes. I.e. in an array ref this is
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the factor to advance the array pointer with to get to the next item.
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For component refs this gives just the size of the element referenced. */
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size_t item_size;
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union {
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struct {
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/* The offset (in bytes) of the component in the derived type. */
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ptrdiff_t offset;
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/* The offset (in bytes) to the caf_token associated with this
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component. NULL, when not allocatable/pointer ref. */
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ptrdiff_t caf_token_offset;
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} c;
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struct {
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/* The mode of the array ref. See CAF_ARR_REF_*. */
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/* caf_array_ref_t, replaced by unsigend char to allow specification in
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fortran FE. */
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unsigned char mode[GFC_MAX_DIMENSIONS];
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/* The type of a static array. Unset for array's with descriptors. */
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int static_array_type;
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/* Subscript refs (s) or vector refs (v). */
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union {
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struct {
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/* The start and end boundary of the ref and the stride. */
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index_type start, end, stride;
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} s;
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struct {
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/* nvec entries of kind giving the elements to reference. */
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void *vector;
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/* The number of entries in vector. */
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size_t nvec;
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/* The integer kind used for the elements in vector. */
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int kind;
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} v;
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} dim[GFC_MAX_DIMENSIONS];
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} a;
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} u;
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} caf_reference_t;
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void _gfortran_caf_init (int *, char ***);
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void _gfortran_caf_finalize (void);
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int _gfortran_caf_this_image (int);
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int _gfortran_caf_num_images (int, int);
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void _gfortran_caf_register (size_t, caf_register_t, caf_token_t *,
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gfc_descriptor_t *, int *, char *, size_t);
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void _gfortran_caf_deregister (caf_token_t *, caf_deregister_t, int *, char *,
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size_t);
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void _gfortran_caf_sync_all (int *, char *, size_t);
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void _gfortran_caf_sync_memory (int *, char *, size_t);
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void _gfortran_caf_sync_images (int, int[], int *, char *, size_t);
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void _gfortran_caf_stop_numeric (int, bool)
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__attribute__ ((noreturn));
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void _gfortran_caf_stop_str (const char *, size_t, bool)
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__attribute__ ((noreturn));
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void _gfortran_caf_error_stop_str (const char *, size_t, bool)
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__attribute__ ((noreturn));
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void _gfortran_caf_error_stop (int, bool) __attribute__ ((noreturn));
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void _gfortran_caf_fail_image (void) __attribute__ ((noreturn));
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void _gfortran_caf_co_broadcast (gfc_descriptor_t *, int, int *, char *, size_t);
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void _gfortran_caf_co_sum (gfc_descriptor_t *, int, int *, char *, size_t);
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void _gfortran_caf_co_min (gfc_descriptor_t *, int, int *, char *, int, size_t);
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void _gfortran_caf_co_max (gfc_descriptor_t *, int, int *, char *, int, size_t);
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void _gfortran_caf_co_reduce (gfc_descriptor_t *, void* (*) (void *, void*),
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int, int, int *, char *, int, size_t);
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void _gfortran_caf_get (caf_token_t, size_t, int, gfc_descriptor_t *,
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caf_vector_t *, gfc_descriptor_t *, int, int, bool,
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int *);
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void _gfortran_caf_send (caf_token_t, size_t, int, gfc_descriptor_t *,
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caf_vector_t *, gfc_descriptor_t *, int, int, bool,
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int *);
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void _gfortran_caf_sendget (caf_token_t, size_t, int, gfc_descriptor_t *,
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caf_vector_t *, caf_token_t, size_t, int,
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gfc_descriptor_t *, caf_vector_t *, int, int, bool);
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void _gfortran_caf_get_by_ref (caf_token_t token, int image_idx,
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gfc_descriptor_t *dst, caf_reference_t *refs, int dst_kind,
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int src_kind, bool may_require_tmp, bool dst_reallocatable, int *stat,
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int src_type);
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void _gfortran_caf_send_by_ref (caf_token_t token, int image_index,
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gfc_descriptor_t *src, caf_reference_t *refs, int dst_kind,
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int src_kind, bool may_require_tmp, bool dst_reallocatable, int *stat,
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int dst_type);
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void _gfortran_caf_sendget_by_ref (
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caf_token_t dst_token, int dst_image_index, caf_reference_t *dst_refs,
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caf_token_t src_token, int src_image_index, caf_reference_t *src_refs,
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int dst_kind, int src_kind, bool may_require_tmp, int *dst_stat,
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int *src_stat, int dst_type, int src_type);
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void _gfortran_caf_atomic_define (caf_token_t, size_t, int, void *, int *,
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int, int);
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void _gfortran_caf_atomic_ref (caf_token_t, size_t, int, void *, int *,
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int, int);
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void _gfortran_caf_atomic_cas (caf_token_t, size_t, int, void *, void *,
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void *, int *, int, int);
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void _gfortran_caf_atomic_op (int, caf_token_t, size_t, int, void *, void *,
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int *, int, int);
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void _gfortran_caf_lock (caf_token_t, size_t, int, int *, int *, char *, size_t);
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void _gfortran_caf_unlock (caf_token_t, size_t, int, int *, char *, size_t);
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void _gfortran_caf_event_post (caf_token_t, size_t, int, int *, char *, size_t);
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void _gfortran_caf_event_wait (caf_token_t, size_t, int, int *, char *, size_t);
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void _gfortran_caf_event_query (caf_token_t, size_t, int, int *, int *);
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void _gfortran_caf_failed_images (gfc_descriptor_t *,
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caf_team_t * __attribute__ ((unused)), int *);
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int _gfortran_caf_image_status (int, caf_team_t * __attribute__ ((unused)));
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void _gfortran_caf_stopped_images (gfc_descriptor_t *,
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caf_team_t * __attribute__ ((unused)),
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int *);
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int _gfortran_caf_is_present (caf_token_t, int, caf_reference_t *);
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#endif /* LIBCAF_H */
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