xref: /llvm-project/libc/test/integration/startup/gpu/rpc_interface_test.cpp (revision 89614ceb401711d2389bac838d0059c95eadcfff)
1 //===-- Loader test to check the RPC interface with the loader ------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "include/llvm-libc-types/test_rpc_opcodes_t.h"
10 #include "src/__support/GPU/utils.h"
11 #include "src/__support/RPC/rpc_client.h"
12 #include "test/IntegrationTest/test.h"
13 
14 using namespace LIBC_NAMESPACE;
15 
16 // Test to ensure that we can use aribtrary combinations of sends and recieves
17 // as long as they are mirrored.
18 static void test_interface(bool end_with_send) {
19   uint64_t cnt = 0;
20   LIBC_NAMESPACE::rpc::Client::Port port =
21       LIBC_NAMESPACE::rpc::client.open<RPC_TEST_INTERFACE>();
22   port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
23     buffer->data[0] = end_with_send;
24   });
25   port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
26     buffer->data[0] = cnt = cnt + 1;
27   });
28   port.recv([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
29     cnt = buffer->data[0];
30   });
31   port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
32     buffer->data[0] = cnt = cnt + 1;
33   });
34   port.recv([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
35     cnt = buffer->data[0];
36   });
37   port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
38     buffer->data[0] = cnt = cnt + 1;
39   });
40   port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
41     buffer->data[0] = cnt = cnt + 1;
42   });
43   port.recv([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
44     cnt = buffer->data[0];
45   });
46   port.recv([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
47     cnt = buffer->data[0];
48   });
49   if (end_with_send)
50     port.send([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
51       buffer->data[0] = cnt = cnt + 1;
52     });
53   else
54     port.recv([&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
55       cnt = buffer->data[0];
56     });
57   port.close();
58 
59   ASSERT_TRUE(cnt == 9 && "Invalid number of increments");
60 }
61 
62 TEST_MAIN(int argc, char **argv, char **envp) {
63   test_interface(true);
64   test_interface(false);
65 
66   return 0;
67 }
68