retrying 0.1.0

General-purpose retrying library for Rust with macros and functions
Documentation 
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use retrying::retry;
use std::num::ParseIntError;

#[allow(unused_must_use)]
fn main() {
    try_retry_attempts("try_retry_attempts");

    try_retry_duration("try_retry_duration");

    try_retry_attempts_fixed("try_retry_attempts_fixed");

    try_retry_attempts_random("try_retry_attempts_random");

    try_retry_attempts_exponential("try_retry_attempts_exponential");

    std::env::set_var("MY_METHOD__RETRYING__STOP__ATTEMPTS", "3");
    std::env::set_var("MY_METHOD__RETRYING__WAIT__FIXED", "1.01");
    try_retry_attempts_fixed_env("try_retry_attempts_fixed_env");

    try_retry_if_errors("try_retry_if_errors");

    try_retry_if_not_errors("try_retry_if_not_errors");

    try_retry("try_retry");
}

#[retry(stop=attempts(2))]
fn try_retry_attempts(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=duration(0.2))]
fn try_retry_duration(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=(attempts(4)|duration(2)),wait=fixed(0.9))]
fn try_retry_attempts_fixed(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=attempts(4),wait=random(min=1,max=1.555))]
fn try_retry_attempts_random(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=attempts(4),wait=exponential(multiplier=0.555, min=1,max=10))]
fn try_retry_attempts_exponential(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=attempts(1000),wait=fixed(1000.4),envs_prefix="MY_METHOD")]
fn try_retry_attempts_fixed_env(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=attempts(3),retry=if_errors(std::num::ParseIntError, ::std::num::ParseIntError))]
fn try_retry_if_errors(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry(stop=attempts(3),retry=if_not_errors(::std::num::ParseIntError, ::std::num::ParseIntError))]
fn try_retry_if_not_errors(in_param: &str) -> Result<i32, ParseIntError> {
    println!("{}", in_param);
    in_param.parse::<i32>()
}

#[retry]
fn try_retry(in_param: &str) -> Result<i32, ParseIntError> {
    println!("retry macros without parameters will never stop. Use CTRL+C to top this example");
    ::retrying::sleep_sync(::retrying::Duration::from_secs(2));
    in_param.parse::<i32>()
}