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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "storaged"
#define KLOG_LEVEL 6
#include <fcntl.h>
#include <getopt.h>
#include <pthread.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <vector>
#include <android-base/macros.h>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <binder/ProcessState.h>
#include <binder/IServiceManager.h>
#include <binder/IPCThreadState.h>
#include <cutils/android_get_control_file.h>
#include <cutils/sched_policy.h>
#include <private/android_filesystem_config.h>
#include <storaged.h>
#include <storaged_service.h>
#include <storaged_utils.h>
using namespace std;
using namespace android;
sp<storaged_t> storaged_sp;
// Function of storaged's main thread
void* storaged_main(void* /* unused */) {
storaged_sp = new storaged_t();
storaged_sp->init();
storaged_sp->report_storage_info();
LOG_TO(SYSTEM, INFO) << "storaged: Start";
for (;;) {
storaged_sp->event_checked();
storaged_sp->pause();
}
return NULL;
}
void help_message(void) {
printf("usage: storaged [OPTION]\n");
printf(" -u --uid Dump uid I/O usage to stdout\n");
printf(" -t --task Dump task I/O usage to stdout\n");
printf(" -p --perf Dump I/O perf history to stdout\n");
printf(" -s --start Start storaged (default)\n");
fflush(stdout);
}
int main(int argc, char** argv) {
bool flag_main_service = false;
bool flag_dump_uid = false;
bool flag_dump_task = false;
bool flag_dump_perf = false;
int opt;
for (;;) {
int opt_idx = 0;
static struct option long_options[] = {
{"perf", no_argument, nullptr, 'p'},
{"start", no_argument, nullptr, 's'},
{"task", no_argument, nullptr, 't'},
{"uid", no_argument, nullptr, 'u'},
{nullptr, 0, nullptr, 0}
};
opt = getopt_long(argc, argv, ":pstu", long_options, &opt_idx);
if (opt == -1) {
break;
}
switch (opt) {
case 'p':
flag_dump_perf = true;
break;
case 's':
flag_main_service = true;
break;
case 't':
flag_dump_task = true;
break;
case 'u':
flag_dump_uid = true;
break;
default:
help_message();
return 0;
}
}
if (argc == 1) {
flag_main_service = true;
}
if (flag_main_service && (flag_dump_uid || flag_dump_task)) {
fprintf(stderr, "Invalid arguments. Option \"start\" and \"dump\" cannot be used together.\n");
help_message();
return -1;
}
if (flag_main_service) { // start main thread
// Start the main thread of storaged
pthread_t storaged_main_thread;
errno = pthread_create(&storaged_main_thread, NULL, storaged_main, NULL);
if (errno != 0) {
PLOG_TO(SYSTEM, ERROR) << "Failed to create main thread";
return -1;
}
if (StoragedService::start() != android::OK ||
StoragedPrivateService::start() != android::OK) {
PLOG_TO(SYSTEM, ERROR) << "Failed to start storaged service";
return -1;
}
android::ProcessState::self()->startThreadPool();
IPCThreadState::self()->joinThreadPool();
pthread_join(storaged_main_thread, NULL);
return 0;
}
sp<IStoragedPrivate> storaged_service = get_storaged_pri_service();
if (storaged_service == NULL) {
fprintf(stderr, "Cannot find storaged service.\nMaybe run storaged --start first?\n");
return -1;
}
if (flag_dump_uid || flag_dump_task) {
vector<UidInfo> uid_io;
binder::Status status = storaged_service->dumpUids(&uid_io);
if (!status.isOk() || uid_io.size() == 0) {
fprintf(stderr, "UID I/O info is not available.\n");
return 0;
}
sort_running_uids_info(uid_io);
log_console_running_uids_info(uid_io, flag_dump_task);
}
if (flag_dump_perf) {
vector<int> perf_history;
binder::Status status = storaged_service->dumpPerfHistory(&perf_history);
if (!status.isOk() || perf_history.size() == 0) {
fprintf(stderr, "I/O perf history is not available.\n");
return 0;
}
log_console_perf_history(perf_history);
}
return 0;
}
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