xref: /libCEED/rust/libceed-sys/c-src/backends/blocked/ceed-blocked.c (revision 3d8e882215d238700cdceb37404f76ca7fa24eaa)
1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors.
2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3 //
4 // SPDX-License-Identifier: BSD-2-Clause
5 //
6 // This file is part of CEED:  http://github.com/ceed
7 
8 #include <ceed/ceed.h>
9 #include <ceed/backend.h>
10 #include <stdbool.h>
11 #include <string.h>
12 #include "ceed-blocked.h"
13 
14 //------------------------------------------------------------------------------
15 // Backend Init
16 //------------------------------------------------------------------------------
17 CEED_INTERN int CeedInit_Blocked(const char *resource, Ceed ceed) {
18   int ierr;
19   if (strcmp(resource, "/cpu/self")
20       && strcmp(resource, "/cpu/self/ref/blocked"))
21     // LCOV_EXCL_START
22     return CeedError(ceed, CEED_ERROR_BACKEND,
23                      "Blocked backend cannot use resource: %s", resource);
24   // LCOV_EXCL_STOP
25   ierr = CeedSetDeterministic(ceed, true); CeedChkBackend(ierr);
26 
27   // Create reference CEED that implementation will be dispatched
28   //   through unless overridden
29   Ceed ceed_ref;
30   CeedInit("/cpu/self/ref/serial", &ceed_ref);
31   ierr = CeedSetDelegate(ceed, ceed_ref); CeedChkBackend(ierr);
32 
33   // Set fallback CEED resource for advanced operator functionality
34   const char fallbackresource[] = "/cpu/self/ref/serial";
35   ierr = CeedSetOperatorFallbackResource(ceed, fallbackresource);
36   CeedChkBackend(ierr);
37 
38   ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate",
39                                 CeedOperatorCreate_Blocked); CeedChkBackend(ierr);
40 
41   return CEED_ERROR_SUCCESS;
42 }
43 
44 //------------------------------------------------------------------------------
45 // Backend Register
46 //------------------------------------------------------------------------------
47 CEED_INTERN int CeedRegister_Ref_Blocked(void) {
48   return CeedRegister("/cpu/self/ref/blocked", CeedInit_Blocked, 55);
49 }
50 //------------------------------------------------------------------------------
51