1 /*
2 * Copyright (C) 2016 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 "storaged"
18 #define KLOG_LEVEL 6
19
20 #include <fcntl.h>
21 #include <getopt.h>
22 #include <pthread.h>
23 #include <stdio.h>
24 #include <sys/stat.h>
25 #include <sys/types.h>
26 #include <vector>
27
28 #include <android-base/macros.h>
29 #include <android-base/logging.h>
30 #include <android-base/stringprintf.h>
31 #include <binder/ProcessState.h>
32 #include <binder/IServiceManager.h>
33 #include <binder/IPCThreadState.h>
34 #include <cutils/android_get_control_file.h>
35 #include <cutils/sched_policy.h>
36 #include <private/android_filesystem_config.h>
37
38 #include <storaged.h>
39 #include <storaged_service.h>
40 #include <storaged_utils.h>
41
42 using namespace std;
43 using namespace android;
44
45 sp<storaged_t> storaged_sp;
46
47 // Function of storaged's main thread
storaged_main(void *)48 void* storaged_main(void* /* unused */) {
49 LOG(INFO) << "storaged: Start";
50
51 for (;;) {
52 storaged_sp->event_checked();
53 storaged_sp->pause();
54 }
55 return NULL;
56 }
57
help_message(void)58 void help_message(void) {
59 printf("usage: storaged [OPTION]\n");
60 printf(" -u --uid Dump uid I/O usage to stdout\n");
61 printf(" -t --task Dump task I/O usage to stdout\n");
62 printf(" -p --perf Dump I/O perf history to stdout\n");
63 printf(" -s --start Start storaged (default)\n");
64 fflush(stdout);
65 }
66
main(int argc,char ** argv)67 int main(int argc, char** argv) {
68 bool flag_main_service = false;
69 bool flag_dump_uid = false;
70 bool flag_dump_task = false;
71 bool flag_dump_perf = false;
72 int opt;
73
74 signal(SIGPIPE, SIG_IGN);
75 android::base::InitLogging(argv, android::base::LogdLogger(android::base::SYSTEM));
76
77 for (;;) {
78 int opt_idx = 0;
79 static struct option long_options[] = {
80 {"perf", no_argument, nullptr, 'p'},
81 {"start", no_argument, nullptr, 's'},
82 {"task", no_argument, nullptr, 't'},
83 {"uid", no_argument, nullptr, 'u'},
84 {nullptr, 0, nullptr, 0}
85 };
86 opt = getopt_long(argc, argv, ":pstu", long_options, &opt_idx);
87 if (opt == -1) {
88 break;
89 }
90
91 switch (opt) {
92 case 'p':
93 flag_dump_perf = true;
94 break;
95 case 's':
96 flag_main_service = true;
97 break;
98 case 't':
99 flag_dump_task = true;
100 break;
101 case 'u':
102 flag_dump_uid = true;
103 break;
104 default:
105 help_message();
106 return 0;
107 }
108 }
109
110 if (argc == 1) {
111 flag_main_service = true;
112 }
113
114 if (flag_main_service && (flag_dump_uid || flag_dump_task)) {
115 fprintf(stderr, "Invalid arguments. Option \"start\" and \"dump\" cannot be used together.\n");
116 help_message();
117 return -1;
118 }
119
120 if (flag_main_service) { // start main thread
121 // Start the main thread of storaged
122 storaged_sp = new storaged_t();
123 storaged_sp->init();
124 storaged_sp->report_storage_info();
125 pthread_t storaged_main_thread;
126 errno = pthread_create(&storaged_main_thread, NULL, storaged_main, NULL);
127 if (errno != 0) {
128 PLOG(ERROR) << "Failed to create main thread";
129 return -1;
130 }
131
132 if (StoragedService::start() != android::OK ||
133 StoragedPrivateService::start() != android::OK) {
134 PLOG(ERROR) << "Failed to start storaged service";
135 return -1;
136 }
137
138 android::ProcessState::self()->startThreadPool();
139 IPCThreadState::self()->joinThreadPool();
140 pthread_join(storaged_main_thread, NULL);
141
142 return 0;
143 }
144
145 sp<IStoragedPrivate> storaged_service = get_storaged_pri_service();
146 if (storaged_service == NULL) {
147 fprintf(stderr, "Cannot find storaged service.\nMaybe run storaged --start first?\n");
148 return -1;
149 }
150
151 if (flag_dump_uid || flag_dump_task) {
152 vector<UidInfo> uid_io;
153 binder::Status status = storaged_service->dumpUids(&uid_io);
154 if (!status.isOk() || uid_io.size() == 0) {
155 fprintf(stderr, "UID I/O info is not available.\n");
156 return 0;
157 }
158
159 sort_running_uids_info(uid_io);
160 log_console_running_uids_info(uid_io, flag_dump_task);
161 }
162
163 if (flag_dump_perf) {
164 vector<int> perf_history;
165 binder::Status status = storaged_service->dumpPerfHistory(&perf_history);
166 if (!status.isOk() || perf_history.size() == 0) {
167 fprintf(stderr, "I/O perf history is not available.\n");
168 return 0;
169 }
170
171 log_console_perf_history(perf_history);
172 }
173
174 return 0;
175 }
176