Re: Problem with select(2) in single threaded runtime.

4 Nov 2014

      Hi Herbert,
...
On 4 Nov 2014, at 0:34, Herbert Valerio Riedel  wrote:
Was the passed `timeval` structure valid? I.e. is the tv_usec value inside
the [0,1e6-1] range? and was tv_sec>=0 ?
The simple test I wrote is:

#include 
#include 
#include 
#include 
#include 
#include 

int main(int argc, char **argv)
{
    fd_set set;
    FD_ZERO(&set);

    struct timeval tv;
    tv.tv_sec = INT_MAX;
    tv.tv_usec = 0;

    FD_SET(0, &set);

    int ret = select(1, &set, &set, &set, &tv);
    printf("Result %d: %s\n", ret, strerror(errno));
    printf("time_t: %lu suseconds_t: %lu\n", sizeof(time_t), sizeof(suseconds_t));
    return 0;
}

This exits with EINVAL for me on OSX, if I replace INT_MAX with 1000, it runs just fine. The man page on OSX mentions EINVAL for values that exceed the maximum timeout, so it looks like OSX is not following the spec, then...

Cheers,
Merijn

Re: Problem with select(2) in single threaded runtime.

Merijn Verstraaten