[SOLVED] file properties - last access/modified time

[gmsa]

I need the 'last access time' of a file in microseconds.
Struct stat returns the time in seconds. Is there any other way to get access/modified time of files?

struct stat sb;
if(stat(filename.c_str(), &sb) != -1)
{
time_t accesTime = sb.st_atime; //accessTime in seconds

...some code...
}

[Lakshmipathi]

If I'm not wrong,ext3 file system saves timestamps in seconds - Only ext4 saves timestamp in nano seconds.

If you need ext3 timestamp in other format , you can convert it (from seconds to micro/nano seconds ) manually in your code.

[gmsa]

If I'm not wrong,ext3 file system saves timestamps in seconds - Only ext4 saves timestamp in nano seconds.

If you need ext3 timestamp in other format , you can convert it (from seconds to micro/nano seconds ) manually in your code.

Thanks for your reply.
I have some files which have same 'access time' in seconds. If I read those times in seconds and convert it manually to microseconds (seconds*pow (10,6)), I'll get the same access time for all files again.
I wanted to read the access time more precisely.

[Lakshmipathi]

Thanks for your reply.
I have some files which have same 'access time' in seconds. If I read those times in seconds and convert it manually to microseconds (seconds*pow (10,6)), I'll get the same access time for all files again.
I wanted to read the access time more precisely.

Again , I'm not wrong you can't achieve your requirement with ext3 file system. May be you can check all timestamps like ctime and mtime and combine to them to get results - if that's not suitable to your program,you need to go for file systems that supports micro/nano timestamp.


HTH