refactor worker into worker/worker_job
This commit is contained in:
parent
54dc6db900
commit
844221616e
39
src/main.rs
39
src/main.rs
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@ -73,20 +73,17 @@ impl Resources {
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queue.pop_front()
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}
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fn worker(&self) -> Result<(), Error> {
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let db = PgConnection::establish(&self.db_url)?;
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loop {
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fn worker_job(&self, db: &PgConnection) -> Result<bool, Error> {
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let (id, cal_opts) = match self.next() {
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Some(next) => next,
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None => return Ok(()),
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None => return Ok(true),
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};
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let (etag, last_modified) = db.transaction::<_, Error, _>(|| {
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let cals = calendars
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.filter(schema::calendars::dsl::id.eq(id.clone()))
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.limit(1)
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.load::<Calendar>(&db)?;
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.load::<Calendar>(db)?;
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match cals.first() {
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None => {
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let cal = NewCalendar {
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@ -96,14 +93,14 @@ impl Resources {
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};
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diesel::insert_into(calendars)
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.values(&cal)
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.execute(&db)?;
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.execute(db)?;
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Ok((None, None))
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}
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Some(cal) => {
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diesel::update(calendars)
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.filter(schema::calendars::dsl::id.eq(id.clone()))
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.set(schema::calendars::dsl::last_fetch.eq(Utc::now().naive_utc()))
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.execute(&db)?;
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.execute(db)?;
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let result =
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// Use ETag/Last-Modified only if URL hasn't changed
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if cal.url == cal_opts.url {
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@ -135,8 +132,8 @@ impl Resources {
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.filter(schema::calendars::dsl::id.eq(id.clone()))
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.set((schema::calendars::dsl::last_success.eq(Utc::now().naive_utc()),
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schema::calendars::dsl::error_message.eq(msg)))
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.execute(&db)?;
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return Ok(())
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.execute(db)?;
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return Ok(false)
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}
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let etag = res.headers().get(ETAG)
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@ -152,7 +149,7 @@ impl Resources {
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.set((schema::calendars::dsl::last_success.eq(Utc::now().naive_utc()),
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schema::calendars::dsl::etag.eq(etag),
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schema::calendars::dsl::last_modified.eq(last_modified)))
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.execute(&db)?;
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.execute(db)?;
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let mut p = Parser::new();
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let mut buf = [0; 1024];
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@ -184,16 +181,28 @@ impl Resources {
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println!("[{}] {} events", id, events.len());
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diesel::delete(schema::events::dsl::events)
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.filter(schema::events::dsl::calendar.eq(id))
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.execute(&db)?;
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.execute(db)?;
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for event in events.values() {
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diesel::insert_into(schema::events::dsl::events)
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.values(event)
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.execute(&db)?;
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.execute(db)?;
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}
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Ok(())
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Ok(false)
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})?;
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Ok(false)
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}
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fn worker_loop(&self) -> Result<(), Error> {
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let db = PgConnection::establish(&self.db_url)?;
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let mut done = false;
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while ! done {
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done = self.worker_job(&db)
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.map_err(|e| println!("{:?}", e))
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.unwrap_or(false);
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}
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Ok(())
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}
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}
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@ -244,7 +253,7 @@ fn main() {
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let cpus = num_cpus::get();
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let workers: Vec<_> = (0..cpus)
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.map(|_| s.spawn(|_| {
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res.worker()
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res.worker_loop()
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.map_err(|e| println!("{:?}", e))
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}))
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.collect();
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