Merge changes I6e95870e,Ibcef6b73,I302ce3c2 into main

* changes:
  libprocessgroup: Use pid_t consistently for TIDs
  libprocessgroup: Use pid_t consistently for PIDs
  libprocessgroup: Use uid_t consistently for UIDs
diff --git a/libprocessgroup/cgroup_map.cpp b/libprocessgroup/cgroup_map.cpp
index ce7f10b..c8ae216 100644
--- a/libprocessgroup/cgroup_map.cpp
+++ b/libprocessgroup/cgroup_map.cpp
@@ -104,7 +104,7 @@
     return proc_path.append(CGROUP_PROCS_FILE);
 }
 
-bool CgroupController::GetTaskGroup(int tid, std::string* group) const {
+bool CgroupController::GetTaskGroup(pid_t tid, std::string* group) const {
     std::string file_name = StringPrintf("/proc/%d/cgroup", tid);
     std::string content;
     if (!android::base::ReadFileToString(file_name, &content)) {
diff --git a/libprocessgroup/cgroup_map.h b/libprocessgroup/cgroup_map.h
index 5cdf8b2..5c6d3e2 100644
--- a/libprocessgroup/cgroup_map.h
+++ b/libprocessgroup/cgroup_map.h
@@ -43,7 +43,8 @@
 
     std::string GetTasksFilePath(const std::string& path) const;
     std::string GetProcsFilePath(const std::string& path, uid_t uid, pid_t pid) const;
-    bool GetTaskGroup(int tid, std::string* group) const;
+    bool GetTaskGroup(pid_t tid, std::string* group) const;
+
   private:
     enum ControllerState {
         UNKNOWN = 0,
diff --git a/libprocessgroup/include/processgroup/processgroup.h b/libprocessgroup/include/processgroup/processgroup.h
index ca6868c..ffffeb4 100644
--- a/libprocessgroup/include/processgroup/processgroup.h
+++ b/libprocessgroup/include/processgroup/processgroup.h
@@ -33,19 +33,20 @@
 bool CgroupGetControllerPath(const std::string& cgroup_name, std::string* path);
 bool CgroupGetControllerFromPath(const std::string& path, std::string* cgroup_name);
 bool CgroupGetAttributePath(const std::string& attr_name, std::string* path);
-bool CgroupGetAttributePathForTask(const std::string& attr_name, int tid, std::string* path);
+bool CgroupGetAttributePathForTask(const std::string& attr_name, pid_t tid, std::string* path);
 
-bool SetTaskProfiles(int tid, const std::vector<std::string>& profiles, bool use_fd_cache = false);
+bool SetTaskProfiles(pid_t tid, const std::vector<std::string>& profiles,
+                     bool use_fd_cache = false);
 bool SetProcessProfiles(uid_t uid, pid_t pid, const std::vector<std::string>& profiles);
 bool SetUserProfiles(uid_t uid, const std::vector<std::string>& profiles);
 
 __END_DECLS
 
-bool SetTaskProfiles(int tid, std::initializer_list<std::string_view> profiles,
+bool SetTaskProfiles(pid_t tid, std::initializer_list<std::string_view> profiles,
                      bool use_fd_cache = false);
 bool SetProcessProfiles(uid_t uid, pid_t pid, std::initializer_list<std::string_view> profiles);
 #if _LIBCPP_STD_VER > 17
-bool SetTaskProfiles(int tid, std::span<const std::string_view> profiles,
+bool SetTaskProfiles(pid_t tid, std::span<const std::string_view> profiles,
                      bool use_fd_cache = false);
 bool SetProcessProfiles(uid_t uid, pid_t pid, std::span<const std::string_view> profiles);
 #endif
@@ -67,35 +68,35 @@
 
 // Return 0 if all processes were killed and the cgroup was successfully removed.
 // Returns -1 in the case of an error occurring or if there are processes still running.
-int killProcessGroup(uid_t uid, int initialPid, int signal);
+int killProcessGroup(uid_t uid, pid_t initialPid, int signal);
 
 // Returns the same as killProcessGroup(), however it does not retry, which means
 // that it only returns 0 in the case that the cgroup exists and it contains no processes.
-int killProcessGroupOnce(uid_t uid, int initialPid, int signal);
+int killProcessGroupOnce(uid_t uid, pid_t initialPid, int signal);
 
 // Sends the provided signal to all members of a process group, but does not wait for processes to
 // exit, or for the cgroup to be removed. Callers should also ensure that killProcessGroup is called
 // later to ensure the cgroup is fully removed, otherwise system resources will leak.
 // Returns true if no errors are encountered sending signals, otherwise false.
-bool sendSignalToProcessGroup(uid_t uid, int initialPid, int signal);
+bool sendSignalToProcessGroup(uid_t uid, pid_t initialPid, int signal);
 
-int createProcessGroup(uid_t uid, int initialPid, bool memControl = false);
+int createProcessGroup(uid_t uid, pid_t initialPid, bool memControl = false);
 
 // Set various properties of a process group. For these functions to work, the process group must
 // have been created by passing memControl=true to createProcessGroup.
-bool setProcessGroupSwappiness(uid_t uid, int initialPid, int swappiness);
-bool setProcessGroupSoftLimit(uid_t uid, int initialPid, int64_t softLimitInBytes);
-bool setProcessGroupLimit(uid_t uid, int initialPid, int64_t limitInBytes);
+bool setProcessGroupSwappiness(uid_t uid, pid_t initialPid, int swappiness);
+bool setProcessGroupSoftLimit(uid_t uid, pid_t initialPid, int64_t softLimitInBytes);
+bool setProcessGroupLimit(uid_t uid, pid_t initialPid, int64_t limitInBytes);
 
 void removeAllEmptyProcessGroups(void);
 
 // Provides the path for an attribute in a specific process group
 // Returns false in case of error, true in case of success
-bool getAttributePathForTask(const std::string& attr_name, int tid, std::string* path);
+bool getAttributePathForTask(const std::string& attr_name, pid_t tid, std::string* path);
 
 // Check if a profile can be applied without failing.
 // Returns true if it can be applied without failing, false otherwise
-bool isProfileValidForProcess(const std::string& profile_name, int uid, int pid);
+bool isProfileValidForProcess(const std::string& profile_name, uid_t uid, pid_t pid);
 
 #endif // __ANDROID_VNDK__
 
diff --git a/libprocessgroup/processgroup.cpp b/libprocessgroup/processgroup.cpp
index 3209adf..94d9502 100644
--- a/libprocessgroup/processgroup.cpp
+++ b/libprocessgroup/processgroup.cpp
@@ -82,7 +82,7 @@
     return StringPrintf("%s/uid_%u", cgroup, uid);
 }
 
-static std::string ConvertUidPidToPath(const char* cgroup, uid_t uid, int pid) {
+static std::string ConvertUidPidToPath(const char* cgroup, uid_t uid, pid_t pid) {
     return StringPrintf("%s/uid_%u/pid_%d", cgroup, uid, pid);
 }
 
@@ -147,7 +147,7 @@
     return true;
 }
 
-bool CgroupGetAttributePathForTask(const std::string& attr_name, int tid, std::string* path) {
+bool CgroupGetAttributePathForTask(const std::string& attr_name, pid_t tid, std::string* path) {
     const TaskProfiles& tp = TaskProfiles::GetInstance();
     const IProfileAttribute* attr = tp.GetAttribute(attr_name);
 
@@ -198,17 +198,18 @@
             uid, pid, std::span<const std::string>(profiles), true);
 }
 
-bool SetTaskProfiles(int tid, const std::vector<std::string>& profiles, bool use_fd_cache) {
+bool SetTaskProfiles(pid_t tid, const std::vector<std::string>& profiles, bool use_fd_cache) {
     return TaskProfiles::GetInstance().SetTaskProfiles(tid, std::span<const std::string>(profiles),
                                                        use_fd_cache);
 }
 
-bool SetTaskProfiles(int tid, std::initializer_list<std::string_view> profiles, bool use_fd_cache) {
+bool SetTaskProfiles(pid_t tid, std::initializer_list<std::string_view> profiles,
+                     bool use_fd_cache) {
     return TaskProfiles::GetInstance().SetTaskProfiles(
             tid, std::span<const std::string_view>(profiles), use_fd_cache);
 }
 
-bool SetTaskProfiles(int tid, std::span<const std::string_view> profiles, bool use_fd_cache) {
+bool SetTaskProfiles(pid_t tid, std::span<const std::string_view> profiles, bool use_fd_cache) {
     return TaskProfiles::GetInstance().SetTaskProfiles(tid, profiles, use_fd_cache);
 }
 
@@ -232,7 +233,7 @@
                                                        false);
 }
 
-static int RemoveCgroup(const char* cgroup, uid_t uid, int pid) {
+static int RemoveCgroup(const char* cgroup, uid_t uid, pid_t pid) {
     auto path = ConvertUidPidToPath(cgroup, uid, pid);
     int ret = TEMP_FAILURE_RETRY(rmdir(path.c_str()));
 
@@ -370,7 +371,7 @@
     return false;
 }
 
-bool sendSignalToProcessGroup(uid_t uid, int initialPid, int signal) {
+bool sendSignalToProcessGroup(uid_t uid, pid_t initialPid, int signal) {
     std::set<pid_t> pgids, pids;
 
     if (CgroupsAvailable()) {
@@ -525,7 +526,7 @@
 // implementation of this function. The default retry value was 40 for killing and 400 for cgroup
 // removal with 5ms sleeps between each retry.
 static int KillProcessGroup(
-        uid_t uid, int initialPid, int signal, bool once = false,
+        uid_t uid, pid_t initialPid, int signal, bool once = false,
         std::chrono::steady_clock::time_point until = std::chrono::steady_clock::now() + 2200ms) {
     CHECK_GE(uid, 0);
     CHECK_GT(initialPid, 0);
@@ -632,15 +633,15 @@
     return ret;
 }
 
-int killProcessGroup(uid_t uid, int initialPid, int signal) {
+int killProcessGroup(uid_t uid, pid_t initialPid, int signal) {
     return KillProcessGroup(uid, initialPid, signal);
 }
 
-int killProcessGroupOnce(uid_t uid, int initialPid, int signal) {
+int killProcessGroupOnce(uid_t uid, pid_t initialPid, int signal) {
     return KillProcessGroup(uid, initialPid, signal, true);
 }
 
-static int createProcessGroupInternal(uid_t uid, int initialPid, std::string cgroup,
+static int createProcessGroupInternal(uid_t uid, pid_t initialPid, std::string cgroup,
                                       bool activate_controllers) {
     auto uid_path = ConvertUidToPath(cgroup.c_str(), uid);
 
@@ -687,7 +688,7 @@
     return ret;
 }
 
-int createProcessGroup(uid_t uid, int initialPid, bool memControl) {
+int createProcessGroup(uid_t uid, pid_t initialPid, bool memControl) {
     CHECK_GE(uid, 0);
     CHECK_GT(initialPid, 0);
 
@@ -712,7 +713,7 @@
     return createProcessGroupInternal(uid, initialPid, cgroup, true);
 }
 
-static bool SetProcessGroupValue(int tid, const std::string& attr_name, int64_t value) {
+static bool SetProcessGroupValue(pid_t tid, const std::string& attr_name, int64_t value) {
     if (!isMemoryCgroupSupported()) {
         LOG(ERROR) << "Memcg is not mounted.";
         return false;
@@ -731,23 +732,23 @@
     return true;
 }
 
-bool setProcessGroupSwappiness(uid_t, int pid, int swappiness) {
+bool setProcessGroupSwappiness(uid_t, pid_t pid, int swappiness) {
     return SetProcessGroupValue(pid, "MemSwappiness", swappiness);
 }
 
-bool setProcessGroupSoftLimit(uid_t, int pid, int64_t soft_limit_in_bytes) {
+bool setProcessGroupSoftLimit(uid_t, pid_t pid, int64_t soft_limit_in_bytes) {
     return SetProcessGroupValue(pid, "MemSoftLimit", soft_limit_in_bytes);
 }
 
-bool setProcessGroupLimit(uid_t, int pid, int64_t limit_in_bytes) {
+bool setProcessGroupLimit(uid_t, pid_t pid, int64_t limit_in_bytes) {
     return SetProcessGroupValue(pid, "MemLimit", limit_in_bytes);
 }
 
-bool getAttributePathForTask(const std::string& attr_name, int tid, std::string* path) {
+bool getAttributePathForTask(const std::string& attr_name, pid_t tid, std::string* path) {
     return CgroupGetAttributePathForTask(attr_name, tid, path);
 }
 
-bool isProfileValidForProcess(const std::string& profile_name, int uid, int pid) {
+bool isProfileValidForProcess(const std::string& profile_name, uid_t uid, pid_t pid) {
     const TaskProfile* tp = TaskProfiles::GetInstance().GetProfile(profile_name);
 
     if (tp == nullptr) {
diff --git a/libprocessgroup/sched_policy.cpp b/libprocessgroup/sched_policy.cpp
index 169b1d3..1005b1e 100644
--- a/libprocessgroup/sched_policy.cpp
+++ b/libprocessgroup/sched_policy.cpp
@@ -38,7 +38,7 @@
 
 #if defined(__ANDROID__)
 
-int set_cpuset_policy(int tid, SchedPolicy policy) {
+int set_cpuset_policy(pid_t tid, SchedPolicy policy) {
     if (tid == 0) {
         tid = GetThreadId();
     }
@@ -64,7 +64,7 @@
     return 0;
 }
 
-int set_sched_policy(int tid, SchedPolicy policy) {
+int set_sched_policy(pid_t tid, SchedPolicy policy) {
     if (tid == 0) {
         tid = GetThreadId();
     }
@@ -154,7 +154,7 @@
     return enabled;
 }
 
-static int getCGroupSubsys(int tid, const char* subsys, std::string& subgroup) {
+static int getCGroupSubsys(pid_t tid, const char* subsys, std::string& subgroup) {
     auto controller = CgroupMap::GetInstance().FindController(subsys);
 
     if (!controller.IsUsable()) return -1;
@@ -185,7 +185,7 @@
     return 0;
 }
 
-int get_sched_policy(int tid, SchedPolicy* policy) {
+int get_sched_policy(pid_t tid, SchedPolicy* policy) {
     if (tid == 0) {
         tid = GetThreadId();
     }
diff --git a/libprocessgroup/task_profiles.cpp b/libprocessgroup/task_profiles.cpp
index d5bd47c..2353cf1 100644
--- a/libprocessgroup/task_profiles.cpp
+++ b/libprocessgroup/task_profiles.cpp
@@ -136,7 +136,7 @@
     return GetPathForTask(pid, path);
 }
 
-bool ProfileAttribute::GetPathForTask(int tid, std::string* path) const {
+bool ProfileAttribute::GetPathForTask(pid_t tid, std::string* path) const {
     std::string subgroup;
     if (!controller()->GetTaskGroup(tid, &subgroup)) {
         return false;
@@ -179,13 +179,13 @@
 // To avoid issues in sdk_mac build
 #if defined(__ANDROID__)
 
-bool SetTimerSlackAction::IsTimerSlackSupported(int tid) {
+bool SetTimerSlackAction::IsTimerSlackSupported(pid_t tid) {
     auto file = StringPrintf("/proc/%d/timerslack_ns", tid);
 
     return (access(file.c_str(), W_OK) == 0);
 }
 
-bool SetTimerSlackAction::ExecuteForTask(int tid) const {
+bool SetTimerSlackAction::ExecuteForTask(pid_t tid) const {
     static bool sys_supports_timerslack = IsTimerSlackSupported(tid);
 
     // v4.6+ kernels support the /proc/<tid>/timerslack_ns interface.
@@ -250,7 +250,7 @@
     return WriteValueToFile(path);
 }
 
-bool SetAttributeAction::ExecuteForTask(int tid) const {
+bool SetAttributeAction::ExecuteForTask(pid_t tid) const {
     std::string path;
 
     if (!attribute_->GetPathForTask(tid, &path)) {
@@ -288,7 +288,7 @@
     return IsValidForTask(pid);
 }
 
-bool SetAttributeAction::IsValidForTask(int tid) const {
+bool SetAttributeAction::IsValidForTask(pid_t tid) const {
     std::string path;
 
     if (!attribute_->GetPathForTask(tid, &path)) {
@@ -316,7 +316,7 @@
     FdCacheHelper::Init(controller_.GetProcsFilePath(path_, 0, 0), fd_[ProfileAction::RCT_PROCESS]);
 }
 
-bool SetCgroupAction::AddTidToCgroup(int tid, int fd, ResourceCacheType cache_type) const {
+bool SetCgroupAction::AddTidToCgroup(pid_t tid, int fd, ResourceCacheType cache_type) const {
     if (tid <= 0) {
         return true;
     }
@@ -401,7 +401,7 @@
     return true;
 }
 
-bool SetCgroupAction::ExecuteForTask(int tid) const {
+bool SetCgroupAction::ExecuteForTask(pid_t tid) const {
     CacheUseResult result = UseCachedFd(ProfileAction::RCT_TASK, tid);
     if (result != ProfileAction::UNUSED) {
         return result == ProfileAction::SUCCESS;
@@ -489,7 +489,7 @@
 }
 
 bool WriteFileAction::WriteValueToFile(const std::string& value_, ResourceCacheType cache_type,
-                                       int uid, int pid, bool logfailures) const {
+                                       uid_t uid, pid_t pid, bool logfailures) const {
     std::string value(value_);
 
     value = StringReplace(value, "<uid>", std::to_string(uid), true);
@@ -564,7 +564,7 @@
     DIR* d;
     struct dirent* de;
     char proc_path[255];
-    int t_pid;
+    pid_t t_pid;
 
     sprintf(proc_path, "/proc/%d/task", pid);
     if (!(d = opendir(proc_path))) {
@@ -590,7 +590,7 @@
     return true;
 }
 
-bool WriteFileAction::ExecuteForTask(int tid) const {
+bool WriteFileAction::ExecuteForTask(pid_t tid) const {
     return WriteValueToFile(value_, ProfileAction::RCT_TASK, getuid(), tid, logfailures_);
 }
 
@@ -655,7 +655,7 @@
     return true;
 }
 
-bool ApplyProfileAction::ExecuteForTask(int tid) const {
+bool ApplyProfileAction::ExecuteForTask(pid_t tid) const {
     for (const auto& profile : profiles_) {
         profile->ExecuteForTask(tid);
     }
@@ -683,7 +683,7 @@
     return true;
 }
 
-bool ApplyProfileAction::IsValidForTask(int tid) const {
+bool ApplyProfileAction::IsValidForTask(pid_t tid) const {
     for (const auto& profile : profiles_) {
         if (!profile->IsValidForTask(tid)) {
             return false;
@@ -707,7 +707,7 @@
     return true;
 }
 
-bool TaskProfile::ExecuteForTask(int tid) const {
+bool TaskProfile::ExecuteForTask(pid_t tid) const {
     if (tid == 0) {
         tid = GetThreadId();
     }
@@ -761,7 +761,7 @@
     return true;
 }
 
-bool TaskProfile::IsValidForTask(int tid) const {
+bool TaskProfile::IsValidForTask(pid_t tid) const {
     for (const auto& element : elements_) {
         if (!element->IsValidForTask(tid)) return false;
     }
@@ -1043,7 +1043,7 @@
 }
 
 template <typename T>
-bool TaskProfiles::SetTaskProfiles(int tid, std::span<const T> profiles, bool use_fd_cache) {
+bool TaskProfiles::SetTaskProfiles(pid_t tid, std::span<const T> profiles, bool use_fd_cache) {
     bool success = true;
     for (const auto& name : profiles) {
         TaskProfile* profile = GetProfile(name);
@@ -1069,9 +1069,9 @@
 template bool TaskProfiles::SetProcessProfiles(uid_t uid, pid_t pid,
                                                std::span<const std::string_view> profiles,
                                                bool use_fd_cache);
-template bool TaskProfiles::SetTaskProfiles(int tid, std::span<const std::string> profiles,
+template bool TaskProfiles::SetTaskProfiles(pid_t tid, std::span<const std::string> profiles,
                                             bool use_fd_cache);
-template bool TaskProfiles::SetTaskProfiles(int tid, std::span<const std::string_view> profiles,
+template bool TaskProfiles::SetTaskProfiles(pid_t tid, std::span<const std::string_view> profiles,
                                             bool use_fd_cache);
 template bool TaskProfiles::SetUserProfiles(uid_t uid, std::span<const std::string> profiles,
                                             bool use_fd_cache);
diff --git a/libprocessgroup/task_profiles.h b/libprocessgroup/task_profiles.h
index 16ffe63..2fa1931 100644
--- a/libprocessgroup/task_profiles.h
+++ b/libprocessgroup/task_profiles.h
@@ -37,7 +37,7 @@
     virtual const CgroupController* controller() const = 0;
     virtual const std::string& file_name() const = 0;
     virtual bool GetPathForProcess(uid_t uid, pid_t pid, std::string* path) const = 0;
-    virtual bool GetPathForTask(int tid, std::string* path) const = 0;
+    virtual bool GetPathForTask(pid_t tid, std::string* path) const = 0;
     virtual bool GetPathForUID(uid_t uid, std::string* path) const = 0;
 };
 
@@ -57,7 +57,7 @@
                const std::string& file_v2_name) override;
 
     bool GetPathForProcess(uid_t uid, pid_t pid, std::string* path) const override;
-    bool GetPathForTask(int tid, std::string* path) const override;
+    bool GetPathForTask(pid_t tid, std::string* path) const override;
     bool GetPathForUID(uid_t uid, std::string* path) const override;
 
   private:
@@ -83,7 +83,7 @@
     virtual void EnableResourceCaching(ResourceCacheType) {}
     virtual void DropResourceCaching(ResourceCacheType) {}
     virtual bool IsValidForProcess(uid_t uid, pid_t pid) const { return false; }
-    virtual bool IsValidForTask(int tid) const { return false; }
+    virtual bool IsValidForTask(pid_t tid) const { return false; }
 
   protected:
     enum CacheUseResult { SUCCESS, FAIL, UNUSED };
@@ -96,7 +96,7 @@
 
     const char* Name() const override { return "SetClamps"; }
     bool ExecuteForProcess(uid_t uid, pid_t pid) const override;
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
 
   protected:
     int boost_;
@@ -108,14 +108,14 @@
     SetTimerSlackAction(unsigned long slack) noexcept : slack_(slack) {}
 
     const char* Name() const override { return "SetTimerSlack"; }
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
     bool IsValidForProcess(uid_t uid, pid_t pid) const override { return true; }
-    bool IsValidForTask(int tid) const override { return true; }
+    bool IsValidForTask(pid_t tid) const override { return true; }
 
   private:
     unsigned long slack_;
 
-    static bool IsTimerSlackSupported(int tid);
+    static bool IsTimerSlackSupported(pid_t tid);
 };
 
 // Set attribute profile element
@@ -126,10 +126,10 @@
 
     const char* Name() const override { return "SetAttribute"; }
     bool ExecuteForProcess(uid_t uid, pid_t pid) const override;
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
     bool ExecuteForUID(uid_t uid) const override;
     bool IsValidForProcess(uid_t uid, pid_t pid) const override;
-    bool IsValidForTask(int tid) const override;
+    bool IsValidForTask(pid_t tid) const override;
 
   private:
     const IProfileAttribute* attribute_;
@@ -146,11 +146,11 @@
 
     const char* Name() const override { return "SetCgroup"; }
     bool ExecuteForProcess(uid_t uid, pid_t pid) const override;
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
     void EnableResourceCaching(ResourceCacheType cache_type) override;
     void DropResourceCaching(ResourceCacheType cache_type) override;
     bool IsValidForProcess(uid_t uid, pid_t pid) const override;
-    bool IsValidForTask(int tid) const override;
+    bool IsValidForTask(pid_t tid) const override;
 
     const CgroupController* controller() const { return &controller_; }
 
@@ -160,7 +160,7 @@
     android::base::unique_fd fd_[ProfileAction::RCT_COUNT];
     mutable std::mutex fd_mutex_;
 
-    bool AddTidToCgroup(int tid, int fd, ResourceCacheType cache_type) const;
+    bool AddTidToCgroup(pid_t tid, int fd, ResourceCacheType cache_type) const;
     CacheUseResult UseCachedFd(ResourceCacheType cache_type, int id) const;
 };
 
@@ -172,11 +172,11 @@
 
     const char* Name() const override { return "WriteFile"; }
     bool ExecuteForProcess(uid_t uid, pid_t pid) const override;
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
     void EnableResourceCaching(ResourceCacheType cache_type) override;
     void DropResourceCaching(ResourceCacheType cache_type) override;
     bool IsValidForProcess(uid_t uid, pid_t pid) const override;
-    bool IsValidForTask(int tid) const override;
+    bool IsValidForTask(pid_t tid) const override;
 
   private:
     std::string task_path_, proc_path_, value_;
@@ -184,8 +184,8 @@
     android::base::unique_fd fd_[ProfileAction::RCT_COUNT];
     mutable std::mutex fd_mutex_;
 
-    bool WriteValueToFile(const std::string& value, ResourceCacheType cache_type, int uid, int pid,
-                          bool logfailures) const;
+    bool WriteValueToFile(const std::string& value, ResourceCacheType cache_type, uid_t uid,
+                          pid_t pid, bool logfailures) const;
     CacheUseResult UseCachedFd(ResourceCacheType cache_type, const std::string& value) const;
 };
 
@@ -198,12 +198,12 @@
     void MoveTo(TaskProfile* profile);
 
     bool ExecuteForProcess(uid_t uid, pid_t pid) const;
-    bool ExecuteForTask(int tid) const;
+    bool ExecuteForTask(pid_t tid) const;
     bool ExecuteForUID(uid_t uid) const;
     void EnableResourceCaching(ProfileAction::ResourceCacheType cache_type);
     void DropResourceCaching(ProfileAction::ResourceCacheType cache_type);
     bool IsValidForProcess(uid_t uid, pid_t pid) const;
-    bool IsValidForTask(int tid) const;
+    bool IsValidForTask(pid_t tid) const;
 
   private:
     const std::string name_;
@@ -219,11 +219,11 @@
 
     const char* Name() const override { return "ApplyProfileAction"; }
     bool ExecuteForProcess(uid_t uid, pid_t pid) const override;
-    bool ExecuteForTask(int tid) const override;
+    bool ExecuteForTask(pid_t tid) const override;
     void EnableResourceCaching(ProfileAction::ResourceCacheType cache_type) override;
     void DropResourceCaching(ProfileAction::ResourceCacheType cache_type) override;
     bool IsValidForProcess(uid_t uid, pid_t pid) const override;
-    bool IsValidForTask(int tid) const override;
+    bool IsValidForTask(pid_t tid) const override;
 
   private:
     std::vector<std::shared_ptr<TaskProfile>> profiles_;
@@ -240,7 +240,7 @@
     template <typename T>
     bool SetProcessProfiles(uid_t uid, pid_t pid, std::span<const T> profiles, bool use_fd_cache);
     template <typename T>
-    bool SetTaskProfiles(int tid, std::span<const T> profiles, bool use_fd_cache);
+    bool SetTaskProfiles(pid_t tid, std::span<const T> profiles, bool use_fd_cache);
     template <typename T>
     bool SetUserProfiles(uid_t uid, std::span<const T> profiles, bool use_fd_cache);