1 /*
2 * Copyright (C) 2024 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "TestServerHost"
18
19 #include <android-base/unique_fd.h>
20 #include <binder/IInterface.h>
21 #include <binder/IPCThreadState.h>
22 #include <binder/IServiceManager.h>
23 #include <binder/ProcessState.h>
24 #include <binder/Status.h>
25 #include <gui/BufferQueue.h>
26 #include <gui/IConsumerListener.h>
27 #include <gui/IGraphicBufferConsumer.h>
28 #include <gui/IGraphicBufferProducer.h>
29 #include <libgui_test_server/BnTestServer.h>
30 #include <log/log.h>
31 #include <utils/Errors.h>
32
33 #include <memory>
34 #include <vector>
35
36 #include <fcntl.h>
37 #include <unistd.h>
38 #include <cstddef>
39 #include <cstdlib>
40
41 #include "TestServerCommon.h"
42 #include "TestServerHost.h"
43
44 namespace android {
45
46 namespace {
47
ForkTestServer(const char * filename,char * name)48 pid_t ForkTestServer(const char* filename, char* name) {
49 pid_t childPid = fork();
50 LOG_ALWAYS_FATAL_IF(childPid == -1);
51
52 if (childPid != 0) {
53 return childPid;
54 }
55
56 // We forked!
57 const char* test_server_flag = "--test-server";
58 char* args[] = {
59 const_cast<char*>(filename),
60 const_cast<char*>(test_server_flag),
61 name,
62 nullptr,
63 };
64
65 int ret = execv(filename, args);
66 ALOGE("Failed to exec libgui_test as a TestServer. ret=%d errno=%d (%s)", ret, errno,
67 strerror(errno));
68 _exit(EXIT_FAILURE);
69 }
70
71 } // namespace
72
TestServerHostMain(const char * filename,base::unique_fd sendPipeFd,base::unique_fd recvPipeFd)73 int TestServerHostMain(const char* filename, base::unique_fd sendPipeFd,
74 base::unique_fd recvPipeFd) {
75 status_t status = OK;
76 LOG_ALWAYS_FATAL_IF(sizeof(status) != write(sendPipeFd.get(), &status, sizeof(status)));
77
78 ALOGE("Launched TestServerHost");
79
80 while (true) {
81 CreateServerRequest request = {};
82 ssize_t bytes = read(recvPipeFd.get(), &request, sizeof(request));
83 LOG_ALWAYS_FATAL_IF(bytes != sizeof(request));
84 pid_t childPid = ForkTestServer(filename, request.name);
85
86 CreateServerResponse response = {};
87 response.pid = childPid;
88 bytes = write(sendPipeFd.get(), &response, sizeof(response));
89 LOG_ALWAYS_FATAL_IF(bytes != sizeof(response));
90 }
91
92 return 0;
93 }
94
95 } // namespace android