diff --git a/libprocessgroup/cgroup_map.cpp b/libprocessgroup/cgroup_map.cpp
index ce7f10b00..c8ae2161a 100644
--- a/libprocessgroup/cgroup_map.cpp
+++ b/libprocessgroup/cgroup_map.cpp
@@ -104,7 +104,7 @@ std::string CgroupController::GetProcsFilePath(const std::string& rel_path, uid_
     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 5cdf8b28c..5c6d3e21c 100644
--- a/libprocessgroup/cgroup_map.h
+++ b/libprocessgroup/cgroup_map.h
@@ -43,7 +43,8 @@ class CgroupController {
 
     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 c67fd9ecb..0f4c97f3b 100644
--- a/libprocessgroup/include/processgroup/processgroup.h
+++ b/libprocessgroup/include/processgroup/processgroup.h
@@ -32,19 +32,20 @@ bool CgroupsAvailable();
 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
@@ -94,7 +95,7 @@ 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
diff --git a/libprocessgroup/processgroup.cpp b/libprocessgroup/processgroup.cpp
index c6646eb40..f8ed43054 100644
--- a/libprocessgroup/processgroup.cpp
+++ b/libprocessgroup/processgroup.cpp
@@ -120,7 +120,7 @@ bool CgroupGetAttributePath(const std::string& attr_name, std::string* path) {
     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);
 
@@ -171,17 +171,18 @@ bool SetProcessProfilesCached(uid_t uid, pid_t pid, const std::vector<std::strin
             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);
 }
 
@@ -623,7 +624,7 @@ int createProcessGroup(uid_t uid, int initialPid, bool memControl) {
     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()) {
         PLOG(ERROR) << "Memcg is not mounted.";
         return false;
@@ -654,7 +655,7 @@ bool setProcessGroupLimit(uid_t, int 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);
 }
 
diff --git a/libprocessgroup/sched_policy.cpp b/libprocessgroup/sched_policy.cpp
index f743ed81b..d7e66c4ad 100644
--- a/libprocessgroup/sched_policy.cpp
+++ b/libprocessgroup/sched_policy.cpp
@@ -38,7 +38,7 @@ static inline SchedPolicy _policy(SchedPolicy p) {
 
 #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();
     }
@@ -65,7 +65,7 @@ int set_cpuset_policy(int tid, SchedPolicy policy) {
     return 0;
 }
 
-int set_sched_policy(int tid, SchedPolicy policy) {
+int set_sched_policy(pid_t tid, SchedPolicy policy) {
     if (tid == 0) {
         tid = GetThreadId();
     }
@@ -155,7 +155,7 @@ bool schedboost_enabled() {
     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;
@@ -188,7 +188,7 @@ static int get_sched_policy_from_group(const std::string& group, SchedPolicy* po
     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 4aa88a475..df5206a38 100644
--- a/libprocessgroup/task_profiles.cpp
+++ b/libprocessgroup/task_profiles.cpp
@@ -136,7 +136,7 @@ bool ProfileAttribute::GetPathForProcess(uid_t uid, pid_t pid, std::string* path
     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 @@ bool SetClampsAction::ExecuteForTask(int) const {
 // 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 @@ bool SetAttributeAction::ExecuteForProcess(uid_t uid, pid_t pid) const {
     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 @@ bool SetAttributeAction::IsValidForProcess(uid_t, pid_t pid) const {
     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 @@ SetCgroupAction::SetCgroupAction(const CgroupController& c, const std::string& p
     FdCacheHelper::Init(controller_.GetProcsFilePath(path_, 0, 0), fd_[ProfileAction::RCT_PROCESS]);
 }
 
-bool SetCgroupAction::AddTidToCgroup(int tid, int fd, const char* controller_name) {
+bool SetCgroupAction::AddTidToCgroup(pid_t tid, int fd, const char* controller_name) {
     if (tid <= 0) {
         return true;
     }
@@ -399,7 +399,7 @@ bool SetCgroupAction::ExecuteForProcess(uid_t uid, pid_t pid) const {
     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;
@@ -588,7 +588,7 @@ bool WriteFileAction::ExecuteForProcess(uid_t uid, pid_t pid) const {
     return true;
 }
 
-bool WriteFileAction::ExecuteForTask(int tid) const {
+bool WriteFileAction::ExecuteForTask(pid_t tid) const {
     return WriteValueToFile(value_, ProfileAction::RCT_TASK, getuid(), tid, logfailures_);
 }
 
@@ -653,7 +653,7 @@ bool ApplyProfileAction::ExecuteForProcess(uid_t uid, pid_t pid) const {
     return true;
 }
 
-bool ApplyProfileAction::ExecuteForTask(int tid) const {
+bool ApplyProfileAction::ExecuteForTask(pid_t tid) const {
     for (const auto& profile : profiles_) {
         profile->ExecuteForTask(tid);
     }
@@ -681,7 +681,7 @@ bool ApplyProfileAction::IsValidForProcess(uid_t uid, pid_t pid) const {
     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;
@@ -705,7 +705,7 @@ bool TaskProfile::ExecuteForProcess(uid_t uid, pid_t pid) const {
     return true;
 }
 
-bool TaskProfile::ExecuteForTask(int tid) const {
+bool TaskProfile::ExecuteForTask(pid_t tid) const {
     if (tid == 0) {
         tid = GetThreadId();
     }
@@ -759,7 +759,7 @@ bool TaskProfile::IsValidForProcess(uid_t uid, pid_t pid) const {
     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;
     }
@@ -1035,7 +1035,7 @@ bool TaskProfiles::SetProcessProfiles(uid_t uid, pid_t pid, std::span<const T> p
 }
 
 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);
@@ -1061,9 +1061,9 @@ template bool TaskProfiles::SetProcessProfiles(uid_t uid, pid_t pid,
 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 b16224b1c..1e1acc5b7 100644
--- a/libprocessgroup/task_profiles.h
+++ b/libprocessgroup/task_profiles.h
@@ -37,7 +37,7 @@ class IProfileAttribute {
     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 @@ class ProfileAttribute : public IProfileAttribute {
                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 @@ class ProfileAction {
     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 @@ class SetClampsAction : public ProfileAction {
 
     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 @@ class SetTimerSlackAction : public ProfileAction {
     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 @@ class SetAttributeAction : public ProfileAction {
 
     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 @@ class SetCgroupAction : public ProfileAction {
 
     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 @@ class SetCgroupAction : public ProfileAction {
     android::base::unique_fd fd_[ProfileAction::RCT_COUNT];
     mutable std::mutex fd_mutex_;
 
-    static bool AddTidToCgroup(int tid, int fd, const char* controller_name);
+    static bool AddTidToCgroup(pid_t tid, int fd, const char* controller_name);
     CacheUseResult UseCachedFd(ResourceCacheType cache_type, int id) const;
 };
 
@@ -172,11 +172,11 @@ class WriteFileAction : public ProfileAction {
 
     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_;
@@ -198,12 +198,12 @@ class TaskProfile {
     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 @@ class ApplyProfileAction : public ProfileAction {
 
     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 @@ class TaskProfiles {
     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);