:sig
String file_pread(u64 h, u64 offset, u64 len)

:params
h : handle from file_open() opened for reading
offset : absolute byte offset to read from
len : maximum number of bytes to read
return value : up to `len` bytes read at `offset`

:content
Reads `len` bytes from an absolute `offset` without moving the handle's current offset. Useful for random access reads that interleave with sequential ones.

:example
u64 w = file_open("/tmp/doc-pread.txt", "w");
file_write(w, "hello world");
file_close(w);
u64 r = file_open("/tmp/doc-pread.txt", "r");
print(file_pread(r, 6, 5), "\n");
file_close(r);

:see
>sys
file_read
file_pwrite
file_open