PROBLEM: zfile_eof () does not work OR i am not using it propertly

build

# Tried agains latest upstream master
# libzqm commit fc7d5e7fbb64e4a0feaf6b2dbce3676678e664d6
# czmq: commit 6634a6c26b79b55f606a823be728e1eed1441e83

rm -f test
gcc -lczmq test.c -o test

state_file

123456789

test.c

#include <czmq.h>

static const char *STATE_PATH = ".";
static const char *STATE_FILE = "state_file";

void
test_zfile_eof () {
    zfile_t *file = zfile_new (STATE_PATH, STATE_FILE);
    assert (file);

    int rv = zfile_input (file);
    assert (rv != -1);

    uint64_t offset = 0;
    while (!zfile_eof (file)) {
        zchunk_t *chunk = zfile_read (file, 1, offset);
        assert (chunk);
        offset += 1;
        zfile_restat (file);
        zsys_debug ("Offset == % "PRIu64"\tByte read (hex) %x", offset, *zchunk_data (chunk));
        zchunk_destroy (&chunk);
        zclock_sleep (300);
    }
    zfile_close (file);
    zfile_destroy (&file);
}


int main () {
    zsys_debug ("zfile_eof () test start");

    test_zfile_eof ();

    zsys_debug ("test stop");
    return EXIT_SUCCESS;
}

• I would expect the while () cycle to end, but it reads from file indefinitely
• The zfile_restat (file); is probably redundant