diff --git a/src/matoya.h b/src/matoya.h
index 6643f062b..2f2c021d5 100644
--- a/src/matoya.h
+++ b/src/matoya.h
@@ -1836,10 +1836,11 @@ typedef enum {
 
 /// @brief File properties.
 typedef struct {
-	char *path;    ///< The base path to the file.
-	char *name;    ///< The file name.
-	uint64_t size; ///< The file size in bytes.
-	bool dir;      ///< The file is a directory.
+	char *path;    			///< The base path to the file.
+	char *name;    			///< The file name.
+	uint64_t size; 			///< The file size in bytes.
+	uint64_t modified_time; ///< the modified time in seconds.
+	bool dir;      			///< The file is a directory.
 } MTY_FileDesc;
 
 /// @brief A list of files.
@@ -2727,6 +2728,10 @@ MTY_ThreadDetach(MTY_ThreadFunc func, void *opaque);
 MTY_EXPORT int64_t
 MTY_ThreadGetID(MTY_Thread *ctx);
 
+/// @brief Returns the process ID of the current thread.
+MTY_EXPORT uint64_t
+MTY_GetCurrentProcessID();
+
 /// @brief Create an MTY_Mutex for synchronization.
 /// @details A mutex can be locked by only one thread at a time. Other threads trying
 ///   to take the same mutex will block until it becomes unlocked.
diff --git a/src/unix/file.c b/src/unix/file.c
index 4ef270ac7..e89e629ec 100644
--- a/src/unix/file.c
+++ b/src/unix/file.c
@@ -235,6 +235,7 @@ MTY_FileList *MTY_GetFileList(const char *path, const char *filter)
 			struct stat st;
 			if (!is_dir && stat(jpath, &st) == 0)
 				fl->files[fl->len].size = st.st_size;
+			fl->files[fl->len].modified_time = st.st_mtime;
 
 			fl->len++;
 		}
diff --git a/src/unix/system.c b/src/unix/system.c
index eee98ba06..32abb2a6c 100644
--- a/src/unix/system.c
+++ b/src/unix/system.c
@@ -115,3 +115,8 @@ bool MTY_GetRunOnStartup(const char *name)
 void MTY_SetRunOnStartup(const char *name, const char *path, const char *args)
 {
 }
+
+uint64_t MTY_GetCurrentProcessID()
+{
+	return (uint64_t)getpid();
+}
diff --git a/src/windows/filew.c b/src/windows/filew.c
index 6f1cebf8d..04e5fce1b 100644
--- a/src/windows/filew.c
+++ b/src/windows/filew.c
@@ -259,6 +259,7 @@ MTY_FileList *MTY_GetFileList(const char *path, const char *filter)
 			fl->files[fl->len].path = MTY_Strdup(MTY_JoinPath(pathd, name));
 			fl->files[fl->len].dir = is_dir;
 			fl->files[fl->len].size = (uint64_t) ent.nFileSizeHigh << 32 | ent.nFileSizeLow;
+			fl->files[fl->len].modified_time = (uint64_t) ent.ftLastWriteTime.dwHighDateTime << 32 | ent.ftLastWriteTime.dwLowDateTime;
 			fl->len++;
 
 		} else {
diff --git a/src/windows/systemw.c b/src/windows/systemw.c
index 457b416aa..baf8acebc 100644
--- a/src/windows/systemw.c
+++ b/src/windows/systemw.c
@@ -391,3 +391,8 @@ void *MTY_GetJNIEnv(void)
 {
 	return NULL;
 }
+
+uint64_t MTY_GetCurrentProcessID()
+{
+	return (uint64_t)GetCurrentProcessId();
+}