ACPR/android_system_core
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge "Set input thread priority to RT - try 2" into main

Browse source
This commit is contained in:
Treehugger Robot 2024-10-31 23:51:47 +00:00 • committed by Gerrit Code Review
commit 7ba45dca19
1 changed files with 40 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

56
libprocessgroup/task_profiles.cpp
View file

@ -20,6 +20,7 @@
#include <task_profiles.h>
#include <map>
#include <optional>
#include <string>
#include <dirent.h>
@ -54,6 +55,7 @@ static constexpr const char* TASK_PROFILE_DB_VENDOR_FILE = "/vendor/etc/task_pro
static constexpr const char* TEMPLATE_TASK_PROFILE_API_FILE =
"/etc/task_profiles/task_profiles_%u.json";
namespace {
class FdCacheHelper {
public:
@ -64,8 +66,11 @@ class FdCacheHelper {
};
static void Cache(const std::string& path, android::base::unique_fd& fd);
static void Drop(android::base::unique_fd& fd);
static void Init(const std::string& path, android::base::unique_fd& fd);
static bool IsCached(const android::base::unique_fd& fd) { return fd > FDS_INACCESSIBLE; }
private:
@ -116,6 +121,17 @@ bool FdCacheHelper::IsAppDependentPath(const std::string& path) {
return path.find("<uid>", 0) != std::string::npos || path.find("<pid>", 0) != std::string::npos;
}
std::optional<long> readLong(const std::string& str) {
char* end;
const long result = strtol(str.c_str(), &end, 10);
if (end > str.c_str()) {
return result;
}
return std::nullopt;
}
} // namespace
IProfileAttribute::~IProfileAttribute() = default;
const std::string& ProfileAttribute::file_name() const {
@ -913,15 +929,12 @@ bool TaskProfiles::Load(const CgroupMap& cg_map, const std::string& file_name) {
LOG(WARNING) << "JoinCgroup: controller " << controller_name << " is not found";
}
} else if (action_name == "SetTimerSlack") {
std::string slack_value = params_val["Slack"].asString();
char* end;
unsigned long slack;
slack = strtoul(slack_value.c_str(), &end, 10);
if (end > slack_value.c_str()) {
profile->Add(std::make_unique<SetTimerSlackAction>(slack));
const std::string slack_string = params_val["Slack"].asString();
std::optional<long> slack = readLong(slack_string);
if (slack && *slack >= 0) {
profile->Add(std::make_unique<SetTimerSlackAction>(*slack));
} else {
LOG(WARNING) << "SetTimerSlack: invalid parameter: " << slack_value;
LOG(WARNING) << "SetTimerSlack: invalid parameter: " << slack_string;
}
} else if (action_name == "SetAttribute") {
std::string attr_name = params_val["Name"].asString();
@ -980,15 +993,19 @@ bool TaskProfiles::Load(const CgroupMap& cg_map, const std::string& file_name) {
// If present, this optional value will be passed in an additional syscall
// to setpriority(), since the sched_priority value must be 0 for calls to
// sched_setscheduler() with "normal" policies.
const int nice = params_val["Nice"].asInt();
const std::string nice_string = params_val["Nice"].asString();
const std::optional<int> nice = readLong(nice_string);
if (!nice) {
LOG(FATAL) << "Invalid nice value specified: " << nice_string;
}
const int LINUX_MIN_NICE = -20;
const int LINUX_MAX_NICE = 19;
if (nice < LINUX_MIN_NICE || nice > LINUX_MAX_NICE) {
LOG(WARNING) << "SetSchedulerPolicy: Provided nice (" << nice
if (*nice < LINUX_MIN_NICE || *nice > LINUX_MAX_NICE) {
LOG(WARNING) << "SetSchedulerPolicy: Provided nice (" << *nice
<< ") appears out of range.";
}
profile->Add(std::make_unique<SetSchedulerPolicyAction>(policy, nice));
profile->Add(std::make_unique<SetSchedulerPolicyAction>(policy, *nice));
} else {
profile->Add(std::make_unique<SetSchedulerPolicyAction>(policy));
}
@ -1001,11 +1018,18 @@ bool TaskProfiles::Load(const CgroupMap& cg_map, const std::string& file_name) {
// This is a "virtual priority" as described by `man 2 sched_get_priority_min`
// that will be mapped onto the following range for the provided policy:
// [sched_get_priority_min(), sched_get_priority_max()]
const int virtual_priority = params_val["Priority"].asInt();
int priority;
if (SetSchedulerPolicyAction::toPriority(policy, virtual_priority, priority)) {
profile->Add(std::make_unique<SetSchedulerPolicyAction>(policy, priority));
const std::string priority_string = params_val["Priority"].asString();
std::optional<long> virtual_priority = readLong(priority_string);
if (virtual_priority && *virtual_priority > 0) {
int priority;
if (SetSchedulerPolicyAction::toPriority(policy, *virtual_priority,
priority)) {
profile->Add(
std::make_unique<SetSchedulerPolicyAction>(policy, priority));
}
} else {
LOG(WARNING) << "Invalid priority value: " << priority_string;
}
}
} else {