Parse the timeout parameter as double in the blocking command

[Yangsx-1]

Close #1503
Convert timeout parameter in commands blpop/brpop, bzpopmin/max and bzmpop from int to double.

[Yangsx-1]

@torwig There is something wrong in CI with Darwin Clang, what can i do to deal with it?

[torwig]

@Yangsx-1 You can try casting timeout_microsecond to int by using static_cast(timeout_microsecond) because according to the warning, the second argument should be int not int64.

[torwig]

@Yangsx-1 According to this:

struct timeval {
   time_t      tv_sec;   // Number of whole seconds of elapsed time
   long int    tv_usec;  // Number of microseconds of rest of elapsed time minus tv_sec. Always less than one million
};

The number of microseconds is always less than one million so int is OK. Or what is your concern?

[Yangsx-1]

@Yangsx-1 According to this:

struct timeval {
   time_t      tv_sec;   // Number of whole seconds of elapsed time
   long int    tv_usec;  // Number of microseconds of rest of elapsed time minus tv_sec. Always less than one million
};

The number of microseconds is always less than one million so int is OK. Or what is your concern?

Oh, i understand. There is no need to worry about overflow!

[torwig]

LGTM.
@Yangsx-1 Thank you for your contribution.

[git-hulk]

Thanks all, merging...