install command line tool onto device to get exact modification time; use it instead of ls and md5 computation, since md5 may be not available on some devices

1 files changed, 15 insertions, 0 deletions

diff --git a/android/ultimate/get_modification_time/jni/get_modification_time.c b/android/ultimate/get_modification_time/jni/get_modification_time.c
new file mode 100644
index 00000000000..0ccd2705029
--- /dev/null
+++ b/android/ultimate/get_modification_time/jni/get_modification_time.c
@@ -0,0 +1,15 @@
+#include <sys/stat.h>
+#include <stdio.h>
+
+int main(int argc, char** args) {
+    struct stat st;
+    char* filename = args[1];
+    
+    if (stat(filename, &st) < 0) {
+        perror(filename);
+        return 1;
+    }
+    printf("%lu\n", st.st_mtime);
+    return 0;
+}
+