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platform_system_core
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storaged: call getNamesForUids to get uid names 

Calls getNamesForUids when one of the two conditions are true.
1. entries for new uids are reported from io stats
2. previous getNamesForUids failed

Bug: 62805090
Merged-In: I120b81e1857b2aa0a90d0fb85c8d749e985df78e
Change-Id: I120b81e1857b2aa0a90d0fb85c8d749e985df78e
This commit is contained in:
Jin Qian 2017-07-28 18:45:59 -07:00
parent 1146fa1379
commit 9c54268dce
2 changed files with 48 additions and 23 deletions
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1
storaged/Android.mk
View File

@ -9,7 +9,6 @@ LIBSTORAGED_SHARED_LIBRARIES := \
libcutils \
liblog \
libsysutils \
libpackagelistparser \
libbatteryservice \
include $(CLEAR_VARS)

70
storaged/storaged_uid_monitor.cpp
View File

@ -22,33 +22,24 @@
#include <string>
#include <unordered_map>
#include <android/content/pm/IPackageManagerNative.h>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/macros.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <android-base/stringprintf.h>
#include <binder/IServiceManager.h>
#include <log/log_event_list.h>
#include <packagelistparser/packagelistparser.h>
#include "storaged.h"
#include "storaged_uid_monitor.h"
using namespace android;
using namespace android::base;
using namespace android::content::pm;
static bool packagelist_parse_cb(pkg_info* info, void* userdata)
{
std::unordered_map<uint32_t, struct uid_info>* uids =
reinterpret_cast<std::unordered_map<uint32_t, struct uid_info>*>(userdata);
if (uids->find(info->uid) != uids->end()) {
(*uids)[info->uid].name = info->name;
}
packagelist_free(info);
return true;
}
static bool refresh_uid_names;
std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats()
{
@ -56,6 +47,38 @@ std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats()
return get_uid_io_stats_locked();
};
static void get_uid_names(const vector<int>& uids, const vector<std::string*>& uid_names)
{
sp<IServiceManager> sm = defaultServiceManager();
if (sm == NULL) {
LOG_TO(SYSTEM, ERROR) << "defaultServiceManager failed";
return;
}
sp<IBinder> binder = sm->getService(String16("package_native"));
if (binder == NULL) {
LOG_TO(SYSTEM, ERROR) << "getService package_native failed";
return;
}
sp<IPackageManagerNative> package_mgr = interface_cast<IPackageManagerNative>(binder);
std::vector<std::string> names;
binder::Status status = package_mgr->getNamesForUids(uids, &names);
if (!status.isOk()) {
LOG_TO(SYSTEM, ERROR) << "package_native::getNamesForUids failed: "
<< status.exceptionMessage();
return;
}
for (uint32_t i = 0; i < uid_names.size(); i++) {
if (!names[i].empty()) {
*uid_names[i] = names[i];
}
}
refresh_uid_names = false;
}
std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats_locked()
{
std::unordered_map<uint32_t, struct uid_info> uid_io_stats;
@ -67,7 +90,8 @@ std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats_lock
std::vector<std::string> io_stats = Split(buffer, "\n");
struct uid_info u;
bool refresh_uid = false;
vector<int> uids;
vector<std::string*> uid_names;
for (uint32_t i = 0; i < io_stats.size(); i++) {
if (io_stats[i].empty()) {
@ -91,17 +115,19 @@ std::unordered_map<uint32_t, struct uid_info> uid_monitor::get_uid_io_stats_lock
continue;
}
if (last_uid_io_stats.find(u.uid) == last_uid_io_stats.end()) {
refresh_uid = true;
u.name = std::to_string(u.uid);
} else {
u.name = last_uid_io_stats[u.uid].name;
}
uid_io_stats[u.uid] = u;
uid_io_stats[u.uid].name = std::to_string(u.uid);
uids.push_back(u.uid);
uid_names.push_back(&uid_io_stats[u.uid].name);
if (last_uid_io_stats.find(u.uid) == last_uid_io_stats.end()) {
refresh_uid_names = true;
} else {
uid_io_stats[u.uid].name = last_uid_io_stats[u.uid].name;
}
}
if (refresh_uid) {
packagelist_parse(packagelist_parse_cb, &uid_io_stats);
if (!uids.empty() && refresh_uid_names) {
get_uid_names(uids, uid_names);
}
return uid_io_stats;