1 use std
::collections
::{HashMap, VecDeque}
;
3 use std
::path
::PathBuf
;
4 use std
::io
::{Read, Write, BufRead, BufReader}
;
5 use std
::panic
::UnwindSafe
;
6 use std
::sync
::atomic
::{AtomicBool, Ordering}
;
7 use std
::sync
::{Arc, Mutex}
;
9 use anyhow
::{bail, format_err, Error}
;
11 use lazy_static
::lazy_static
;
12 use serde_json
::{json, Value}
;
13 use serde
::{Serialize, Deserialize}
;
14 use tokio
::sync
::oneshot
;
15 use nix
::fcntl
::OFlag
;
16 use once_cell
::sync
::OnceCell
;
18 use proxmox
::sys
::linux
::procfs
;
19 use proxmox
::try_block
;
20 use proxmox
::tools
::fs
::{create_path, replace_file, atomic_open_or_create_file, CreateOptions}
;
21 use proxmox
::api
::upid
::UPID
;
23 use pbs_tools
::logrotate
::{LogRotate, LogRotateFiles}
;
25 use crate::{CommandoSocket, FileLogger, FileLogOptions}
;
27 struct TaskListLockGuard(File
);
29 struct WorkerTaskSetup
{
30 file_opts
: CreateOptions
,
32 task_lock_fn
: PathBuf
,
33 active_tasks_fn
: PathBuf
,
34 task_index_fn
: PathBuf
,
35 task_archive_fn
: PathBuf
,
38 static WORKER_TASK_SETUP
: OnceCell
<WorkerTaskSetup
> = OnceCell
::new();
40 fn worker_task_setup() -> Result
<&'
static WorkerTaskSetup
, Error
> {
41 WORKER_TASK_SETUP
.get()
42 .ok_or_else(|| format_err
!("WorkerTask library is not initialized"))
45 impl WorkerTaskSetup
{
47 fn new(basedir
: PathBuf
, file_opts
: CreateOptions
) -> Self {
49 let mut taskdir
= basedir
.clone();
50 taskdir
.push("tasks");
52 let mut task_lock_fn
= taskdir
.clone();
53 task_lock_fn
.push(".active.lock");
55 let mut active_tasks_fn
= taskdir
.clone();
56 active_tasks_fn
.push("active");
58 let mut task_index_fn
= taskdir
.clone();
59 task_index_fn
.push("index");
61 let mut task_archive_fn
= taskdir
.clone();
62 task_archive_fn
.push("archive");
74 fn lock_task_list_files(&self, exclusive
: bool
) -> Result
<TaskListLockGuard
, Error
> {
75 let options
= self.file_opts
.clone()
76 .perm(nix
::sys
::stat
::Mode
::from_bits_truncate(0o660));
78 let timeout
= std
::time
::Duration
::new(10, 0);
80 let file
= proxmox
::tools
::fs
::open_file_locked(
87 Ok(TaskListLockGuard(file
))
90 fn log_path(&self, upid
: &UPID
) -> std
::path
::PathBuf
{
91 let mut path
= self.taskdir
.clone();
92 path
.push(format
!("{:02X}", upid
.pstart
% 256));
93 path
.push(upid
.to_string());
97 // atomically read/update the task list, update status of finished tasks
98 // new_upid is added to the list when specified.
99 fn update_active_workers(&self, new_upid
: Option
<&UPID
>) -> Result
<(), Error
> {
101 let lock
= self.lock_task_list_files(true)?
;
103 // TODO remove with 1.x
104 let mut finish_list
: Vec
<TaskListInfo
> = read_task_file_from_path(&self.task_index_fn
)?
;
105 let had_index_file
= !finish_list
.is_empty();
107 // We use filter_map because one negative case wants to *move* the data into `finish_list`,
108 // clippy doesn't quite catch this!
109 #[allow(clippy::unnecessary_filter_map)]
110 let mut active_list
: Vec
<TaskListInfo
> = read_task_file_from_path(&self.active_tasks_fn
)?
113 if info
.state
.is_some() {
114 // this can happen when the active file still includes finished tasks
115 finish_list
.push(info
);
119 if !worker_is_active_local(&info
.upid
) {
120 // println!("Detected stopped task '{}'", &info.upid_str);
121 let now
= proxmox
::tools
::time
::epoch_i64();
122 let status
= upid_read_status(&info
.upid
).unwrap_or(TaskState
::Unknown { endtime: now }
);
123 finish_list
.push(TaskListInfo
{
125 upid_str
: info
.upid_str
,
134 if let Some(upid
) = new_upid
{
135 active_list
.push(TaskListInfo { upid: upid.clone(), upid_str: upid.to_string(), state: None }
);
138 let active_raw
= render_task_list(&active_list
);
140 let options
= self.file_opts
.clone()
141 .perm(nix
::sys
::stat
::Mode
::from_bits_truncate(0o660));
144 &self.active_tasks_fn
,
145 active_raw
.as_bytes(),
149 finish_list
.sort_unstable_by(|a
, b
| {
150 match (&a
.state
, &b
.state
) {
151 (Some(s1
), Some(s2
)) => s1
.cmp(&s2
),
152 (Some(_
), None
) => std
::cmp
::Ordering
::Less
,
153 (None
, Some(_
)) => std
::cmp
::Ordering
::Greater
,
154 _
=> a
.upid
.starttime
.cmp(&b
.upid
.starttime
),
158 if !finish_list
.is_empty() {
159 let options
= self.file_opts
.clone()
160 .perm(nix
::sys
::stat
::Mode
::from_bits_truncate(0o660));
162 let mut writer
= atomic_open_or_create_file(
163 &self.task_archive_fn
,
164 OFlag
::O_APPEND
| OFlag
::O_RDWR
,
168 for info
in &finish_list
{
169 writer
.write_all(render_task_line(&info
).as_bytes())?
;
173 // TODO Remove with 1.x
174 // for compatibility, if we had an INDEX file, we do not need it anymore
176 let _
= nix
::unistd
::unlink(&self.task_index_fn
);
184 // Create task log directory with correct permissions
185 fn create_task_log_dirs(&self) -> Result
<(), Error
> {
188 let dir_opts
= self.file_opts
.clone()
189 .perm(nix
::sys
::stat
::Mode
::from_bits_truncate(0o755));
191 create_path(&self.taskdir
, Some(dir_opts
.clone()), Some(dir_opts
.clone()))?
;
192 // fixme:??? create_path(pbs_buildcfg::PROXMOX_BACKUP_RUN_DIR, None, Some(opts))?;
194 }).map_err(|err
: Error
| format_err
!("unable to create task log dir - {}", err
))
198 /// Initialize the WorkerTask library
199 pub fn init_worker_tasks(basedir
: PathBuf
, file_opts
: CreateOptions
) -> Result
<(), Error
> {
200 let setup
= WorkerTaskSetup
::new(basedir
, file_opts
);
201 setup
.create_task_log_dirs()?
;
202 WORKER_TASK_SETUP
.set(setup
)
203 .map_err(|_
| format_err
!("init_worker_tasks failed - already initialized"))
206 /// checks if the Task Archive is bigger that 'size_threshold' bytes, and
207 /// rotates it if it is
208 pub fn rotate_task_log_archive(size_threshold
: u64, compress
: bool
, max_files
: Option
<usize>) -> Result
<bool
, Error
> {
210 let setup
= worker_task_setup()?
;
212 let _lock
= setup
.lock_task_list_files(true)?
;
214 let mut logrotate
= LogRotate
::new(&setup
.task_archive_fn
, compress
)
215 .ok_or_else(|| format_err
!("could not get archive file names"))?
;
217 logrotate
.rotate(size_threshold
, None
, max_files
)
221 /// Path to the worker log file
222 pub fn upid_log_path(upid
: &UPID
) -> Result
<std
::path
::PathBuf
, Error
> {
223 let setup
= worker_task_setup()?
;
224 Ok(setup
.log_path(upid
))
227 /// Read endtime (time of last log line) and exitstatus from task log file
228 /// If there is not a single line with at valid datetime, we assume the
229 /// starttime to be the endtime
230 pub fn upid_read_status(upid
: &UPID
) -> Result
<TaskState
, Error
> {
232 let setup
= worker_task_setup()?
;
234 let mut status
= TaskState
::Unknown { endtime: upid.starttime }
;
236 let path
= setup
.log_path(upid
);
238 let mut file
= File
::open(path
)?
;
240 /// speedup - only read tail
242 use std
::io
::SeekFrom
;
243 let _
= file
.seek(SeekFrom
::End(-8192)); // ignore errors
245 let mut data
= Vec
::with_capacity(8192);
246 file
.read_to_end(&mut data
)?
;
248 // strip newlines at the end of the task logs
249 while data
.last() == Some(&b'
\n'
) {
253 let last_line
= match data
.iter().rposition(|c
| *c
== b'
\n'
) {
254 Some(start
) if data
.len() > (start
+1) => &data
[start
+1..],
255 Some(_
) => &data
, // should not happen, since we removed all trailing newlines
259 let last_line
= std
::str::from_utf8(last_line
)
260 .map_err(|err
| format_err
!("upid_read_status: utf8 parse failed: {}", err
))?
;
262 let mut iter
= last_line
.splitn(2, ": ");
263 if let Some(time_str
) = iter
.next() {
264 if let Ok(endtime
) = proxmox
::tools
::time
::parse_rfc3339(time_str
) {
265 // set the endtime even if we cannot parse the state
266 status
= TaskState
::Unknown { endtime }
;
267 if let Some(rest
) = iter
.next().and_then(|rest
| rest
.strip_prefix("TASK ")) {
268 if let Ok(state
) = TaskState
::from_endtime_and_message(endtime
, rest
) {
279 static ref WORKER_TASK_LIST
: Mutex
<HashMap
<usize, Arc
<WorkerTask
>>> = Mutex
::new(HashMap
::new());
282 /// checks if the task UPID refers to a worker from this process
283 fn is_local_worker(upid
: &UPID
) -> bool
{
284 upid
.pid
== crate::pid() && upid
.pstart
== crate::pstart()
287 /// Test if the task is still running
288 pub async
fn worker_is_active(upid
: &UPID
) -> Result
<bool
, Error
> {
289 if is_local_worker(upid
) {
290 return Ok(WORKER_TASK_LIST
.lock().unwrap().contains_key(&upid
.task_id
));
293 if procfs
::check_process_running_pstart(upid
.pid
, upid
.pstart
).is_none() {
297 let sock
= crate::ctrl_sock_from_pid(upid
.pid
);
299 "command": "worker-task-status",
301 "upid": upid
.to_string(),
304 let status
= crate::send_command(sock
, &cmd
).await?
;
306 if let Some(active
) = status
.as_bool() {
309 bail
!("got unexpected result {:?} (expected bool)", status
);
313 /// Test if the task is still running (fast but inaccurate implementation)
315 /// If the task is spawned from a different process, we simply return if
316 /// that process is still running. This information is good enough to detect
318 pub fn worker_is_active_local(upid
: &UPID
) -> bool
{
319 if is_local_worker(upid
) {
320 WORKER_TASK_LIST
.lock().unwrap().contains_key(&upid
.task_id
)
322 procfs
::check_process_running_pstart(upid
.pid
, upid
.pstart
).is_some()
326 pub fn register_task_control_commands(
327 commando_sock
: &mut CommandoSocket
,
328 ) -> Result
<(), Error
> {
329 fn get_upid(args
: Option
<&Value
>) -> Result
<UPID
, Error
> {
330 let args
= if let Some(args
) = args { args }
else { bail!("missing args") }
;
331 let upid
= match args
.get("upid") {
332 Some(Value
::String(upid
)) => upid
.parse
::<UPID
>()?
,
333 None
=> bail
!("no upid in args"),
334 _
=> bail
!("unable to parse upid"),
336 if !is_local_worker(&upid
) {
337 bail
!("upid does not belong to this process");
342 commando_sock
.register_command("worker-task-abort".into(), move |args
| {
343 let upid
= get_upid(args
)?
;
345 abort_local_worker(upid
);
349 commando_sock
.register_command("worker-task-status".into(), move |args
| {
350 let upid
= get_upid(args
)?
;
352 let active
= WORKER_TASK_LIST
.lock().unwrap().contains_key(&upid
.task_id
);
360 pub fn abort_worker_async(upid
: UPID
) {
361 tokio
::spawn(async
move {
362 if let Err(err
) = abort_worker(upid
).await
{
363 eprintln
!("abort worker failed - {}", err
);
368 pub async
fn abort_worker(upid
: UPID
) -> Result
<(), Error
> {
370 let sock
= crate::ctrl_sock_from_pid(upid
.pid
);
372 "command": "worker-task-abort",
374 "upid": upid
.to_string(),
377 crate::send_command(sock
, &cmd
).map_ok(|_
| ()).await
380 fn parse_worker_status_line(line
: &str) -> Result
<(String
, UPID
, Option
<TaskState
>), Error
> {
382 let data
= line
.splitn(3, ' '
).collect
::<Vec
<&str>>();
384 let len
= data
.len();
387 1 => Ok((data
[0].to_owned(), data
[0].parse
::<UPID
>()?
, None
)),
389 let endtime
= i64::from_str_radix(data
[1], 16)?
;
390 let state
= TaskState
::from_endtime_and_message(endtime
, data
[2])?
;
391 Ok((data
[0].to_owned(), data
[0].parse
::<UPID
>()?
, Some(state
)))
393 _
=> bail
!("wrong number of components"),
398 #[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
400 /// The Task ended with an undefined state
401 Unknown { endtime: i64 }
,
402 /// The Task ended and there were no errors or warnings
404 /// The Task had 'count' amount of warnings and no errors
405 Warning { count: u64, endtime: i64 }
,
406 /// The Task ended with the error described in 'message'
407 Error { message: String, endtime: i64 }
,
411 pub fn endtime(&self) -> i64 {
413 TaskState
::Unknown { endtime }
=> endtime
,
414 TaskState
::OK { endtime }
=> endtime
,
415 TaskState
::Warning { endtime, .. }
=> endtime
,
416 TaskState
::Error { endtime, .. }
=> endtime
,
420 fn result_text(&self) -> String
{
422 TaskState
::Error { message, .. }
=> format
!("TASK ERROR: {}", message
),
423 other
=> format
!("TASK {}", other
),
427 fn from_endtime_and_message(endtime
: i64, s
: &str) -> Result
<Self, Error
> {
429 Ok(TaskState
::Unknown { endtime }
)
430 } else if s
== "OK" {
431 Ok(TaskState
::OK { endtime }
)
432 } else if let Some(warnings
) = s
.strip_prefix("WARNINGS: ") {
433 let count
: u64 = warnings
.parse()?
;
434 Ok(TaskState
::Warning{ count, endtime }
)
435 } else if !s
.is_empty() {
436 let message
= if let Some(err
) = s
.strip_prefix("ERROR: ") { err }
else { s }
.to_string();
437 Ok(TaskState
::Error{ message, endtime }
)
439 bail
!("unable to parse Task Status '{}'", s
);
444 impl std
::cmp
::PartialOrd
for TaskState
{
445 fn partial_cmp(&self, other
: &Self) -> Option
<std
::cmp
::Ordering
> {
446 Some(self.endtime().cmp(&other
.endtime()))
450 impl std
::cmp
::Ord
for TaskState
{
451 fn cmp(&self, other
: &Self) -> std
::cmp
::Ordering
{
452 self.endtime().cmp(&other
.endtime())
456 impl std
::fmt
::Display
for TaskState
{
457 fn fmt(&self, f
: &mut std
::fmt
::Formatter
<'_
>) -> std
::fmt
::Result
{
459 TaskState
::Unknown { .. }
=> write
!(f
, "unknown"),
460 TaskState
::OK { .. }
=> write
!(f
, "OK"),
461 TaskState
::Warning { count, .. }
=> write
!(f
, "WARNINGS: {}", count
),
462 TaskState
::Error { message, .. }
=> write
!(f
, "{}", message
),
467 /// Task details including parsed UPID
469 /// If there is no `state`, the task is still running.
471 pub struct TaskListInfo
{
474 /// UPID string representation
475 pub upid_str
: String
,
476 /// Task `(endtime, status)` if already finished
477 pub state
: Option
<TaskState
>, // endtime, status
480 fn render_task_line(info
: &TaskListInfo
) -> String
{
481 let mut raw
= String
::new();
482 if let Some(status
) = &info
.state
{
483 raw
.push_str(&format
!("{} {:08X} {}\n", info
.upid_str
, status
.endtime(), status
));
485 raw
.push_str(&info
.upid_str
);
492 fn render_task_list(list
: &[TaskListInfo
]) -> String
{
493 let mut raw
= String
::new();
495 raw
.push_str(&render_task_line(&info
));
500 // note this is not locked, caller has to make sure it is
501 // this will skip (and log) lines that are not valid status lines
502 fn read_task_file
<R
: Read
>(reader
: R
) -> Result
<Vec
<TaskListInfo
>, Error
>
504 let reader
= BufReader
::new(reader
);
505 let mut list
= Vec
::new();
506 for line
in reader
.lines() {
508 match parse_worker_status_line(&line
) {
509 Ok((upid_str
, upid
, state
)) => list
.push(TaskListInfo
{
515 eprintln
!("unable to parse worker status '{}' - {}", line
, err
);
524 // note this is not locked, caller has to make sure it is
525 fn read_task_file_from_path
<P
>(path
: P
) -> Result
<Vec
<TaskListInfo
>, Error
>
527 P
: AsRef
<std
::path
::Path
> + std
::fmt
::Debug
,
529 let file
= match File
::open(&path
) {
531 Err(err
) if err
.kind() == std
::io
::ErrorKind
::NotFound
=> return Ok(Vec
::new()),
532 Err(err
) => bail
!("unable to open task list {:?} - {}", path
, err
),
538 pub struct TaskListInfoIterator
{
539 list
: VecDeque
<TaskListInfo
>,
541 archive
: Option
<LogRotateFiles
>,
542 lock
: Option
<TaskListLockGuard
>,
545 impl TaskListInfoIterator
{
546 pub fn new(active_only
: bool
) -> Result
<Self, Error
> {
548 let setup
= worker_task_setup()?
;
550 let (read_lock
, active_list
) = {
551 let lock
= setup
.lock_task_list_files(false)?
;
552 let active_list
= read_task_file_from_path(&setup
.active_tasks_fn
)?
;
554 let needs_update
= active_list
556 .any(|info
| info
.state
.is_some() || !worker_is_active_local(&info
.upid
));
558 // TODO remove with 1.x
559 let index_exists
= setup
.task_index_fn
.is_file();
561 if needs_update
|| index_exists
{
563 setup
.update_active_workers(None
)?
;
564 let lock
= setup
.lock_task_list_files(false)?
;
565 let active_list
= read_task_file_from_path(&setup
.active_tasks_fn
)?
;
572 let archive
= if active_only
{
575 let logrotate
= LogRotate
::new(&setup
.task_archive_fn
, true)
576 .ok_or_else(|| format_err
!("could not get archive file names"))?
;
577 Some(logrotate
.files())
580 let lock
= if active_only { None }
else { Some(read_lock) }
;
583 list
: active_list
.into(),
591 impl Iterator
for TaskListInfoIterator
{
592 type Item
= Result
<TaskListInfo
, Error
>;
594 fn next(&mut self) -> Option
<Self::Item
> {
596 if let Some(element
) = self.list
.pop_back() {
597 return Some(Ok(element
));
601 if let Some(mut archive
) = self.archive
.take() {
602 if let Some(file
) = archive
.next() {
603 let list
= match read_task_file(file
) {
605 Err(err
) => return Some(Err(err
)),
607 self.list
.append(&mut list
.into());
608 self.archive
= Some(archive
);
620 /// Launch long running worker tasks.
622 /// A worker task can either be a whole thread, or a simply tokio
623 /// task/future. Each task can `log()` messages, which are stored
624 /// persistently to files. Task should poll the `abort_requested`
625 /// flag, and stop execution when requested.
626 pub struct WorkerTask
{
627 setup
: &'
static WorkerTaskSetup
,
629 data
: Mutex
<WorkerTaskData
>,
630 abort_requested
: AtomicBool
,
633 impl std
::fmt
::Display
for WorkerTask
{
635 fn fmt(&self, f
: &mut std
::fmt
::Formatter
) -> std
::fmt
::Result
{
640 struct WorkerTaskData
{
642 progress
: f64, // 0..1
644 pub abort_listeners
: Vec
<oneshot
::Sender
<()>>,
651 worker_id
: Option
<String
>,
654 ) -> Result
<Arc
<Self>, Error
> {
656 let setup
= worker_task_setup()?
;
658 let upid
= UPID
::new(worker_type
, worker_id
, auth_id
)?
;
659 let task_id
= upid
.task_id
;
661 let mut path
= setup
.taskdir
.clone();
663 path
.push(format
!("{:02X}", upid
.pstart
& 255));
665 let dir_opts
= setup
.file_opts
.clone()
666 .perm(nix
::sys
::stat
::Mode
::from_bits_truncate(0o755));
668 create_path(&path
, None
, Some(dir_opts
))?
;
670 path
.push(upid
.to_string());
672 let logger_options
= FileLogOptions
{
677 file_opts
: setup
.file_opts
.clone(),
680 let logger
= FileLogger
::new(&path
, logger_options
)?
;
682 let worker
= Arc
::new(Self {
685 abort_requested
: AtomicBool
::new(false),
686 data
: Mutex
::new(WorkerTaskData
{
690 abort_listeners
: vec
![],
694 // scope to drop the lock again after inserting
696 let mut hash
= WORKER_TASK_LIST
.lock().unwrap();
697 hash
.insert(task_id
, worker
.clone());
698 crate::set_worker_count(hash
.len());
701 setup
.update_active_workers(Some(&upid
))?
;
706 /// Spawn a new tokio task/future.
709 worker_id
: Option
<String
>,
713 ) -> Result
<String
, Error
>
714 where F
: Send
+ '
static + FnOnce(Arc
<WorkerTask
>) -> T
,
715 T
: Send
+ '
static + Future
<Output
= Result
<(), Error
>>,
717 let worker
= WorkerTask
::new(worker_type
, worker_id
, auth_id
, to_stdout
)?
;
718 let upid_str
= worker
.upid
.to_string();
719 let f
= f(worker
.clone());
720 tokio
::spawn(async
move {
721 let result
= f
.await
;
722 worker
.log_result(&result
);
728 /// Create a new worker thread.
729 pub fn new_thread
<F
>(
731 worker_id
: Option
<String
>,
735 ) -> Result
<String
, Error
>
736 where F
: Send
+ UnwindSafe
+ '
static + FnOnce(Arc
<WorkerTask
>) -> Result
<(), Error
>
738 let worker
= WorkerTask
::new(worker_type
, worker_id
, auth_id
, to_stdout
)?
;
739 let upid_str
= worker
.upid
.to_string();
741 let _child
= std
::thread
::Builder
::new().name(upid_str
.clone()).spawn(move || {
742 let worker1
= worker
.clone();
743 let result
= match std
::panic
::catch_unwind(move || f(worker1
)) {
746 match panic
.downcast
::<&str>() {
748 Err(format_err
!("worker panicked: {}", panic_msg
))
751 Err(format_err
!("worker panicked: unknown type."))
757 worker
.log_result(&result
);
763 /// create state from self and a result
764 pub fn create_state(&self, result
: &Result
<(), Error
>) -> TaskState
{
765 let warn_count
= self.data
.lock().unwrap().warn_count
;
767 let endtime
= proxmox
::tools
::time
::epoch_i64();
769 if let Err(err
) = result
{
770 TaskState
::Error { message: err.to_string(), endtime }
771 } else if warn_count
> 0 {
772 TaskState
::Warning { count: warn_count, endtime }
774 TaskState
::OK { endtime }
778 /// Log task result, remove task from running list
779 pub fn log_result(&self, result
: &Result
<(), Error
>) {
780 let state
= self.create_state(result
);
781 self.log(state
.result_text());
783 WORKER_TASK_LIST
.lock().unwrap().remove(&self.upid
.task_id
);
784 let _
= self.setup
.update_active_workers(None
);
785 crate::set_worker_count(WORKER_TASK_LIST
.lock().unwrap().len());
789 pub fn log
<S
: AsRef
<str>>(&self, msg
: S
) {
790 let mut data
= self.data
.lock().unwrap();
791 data
.logger
.log(msg
);
794 /// Log a message as warning.
795 pub fn warn
<S
: AsRef
<str>>(&self, msg
: S
) {
796 let mut data
= self.data
.lock().unwrap();
797 data
.logger
.log(format
!("WARN: {}", msg
.as_ref()));
798 data
.warn_count
+= 1;
801 /// Set progress indicator
802 pub fn progress(&self, progress
: f64) {
803 if progress
>= 0.0 && progress
<= 1.0 {
804 let mut data
= self.data
.lock().unwrap();
805 data
.progress
= progress
;
807 // fixme: log!("task '{}': ignoring strange value for progress '{}'", self.upid, progress);
812 pub fn request_abort(&self) {
813 eprintln
!("set abort flag for worker {}", self.upid
);
815 let prev_abort
= self.abort_requested
.swap(true, Ordering
::SeqCst
);
816 if !prev_abort
{ // log abort one time
817 self.log(format
!("received abort request ..."));
820 let mut data
= self.data
.lock().unwrap();
822 match data
.abort_listeners
.pop() {
825 let _
= ch
.send(()); // ignore errors here
831 /// Test if abort was requested.
832 pub fn abort_requested(&self) -> bool
{
833 self.abort_requested
.load(Ordering
::SeqCst
)
836 /// Fail if abort was requested.
837 pub fn fail_on_abort(&self) -> Result
<(), Error
> {
838 if self.abort_requested() {
839 bail
!("abort requested - aborting task");
844 /// Get a future which resolves on task abort
845 pub fn abort_future(&self) -> oneshot
::Receiver
<()> {
846 let (tx
, rx
) = oneshot
::channel
::<()>();
848 let mut data
= self.data
.lock().unwrap();
849 if self.abort_requested() {
852 data
.abort_listeners
.push(tx
);
857 pub fn upid(&self) -> &UPID
{
862 impl pbs_tools
::task
::TaskState
for WorkerTask
{
863 fn check_abort(&self) -> Result
<(), Error
> {
867 fn log(&self, level
: log
::Level
, message
: &std
::fmt
::Arguments
) {
869 log
::Level
::Error
=> self.warn(&message
.to_string()),
870 log
::Level
::Warn
=> self.warn(&message
.to_string()),
871 log
::Level
::Info
=> self.log(&message
.to_string()),
872 log
::Level
::Debug
=> self.log(&format
!("DEBUG: {}", message
)),
873 log
::Level
::Trace
=> self.log(&format
!("TRACE: {}", message
)),
878 /// Wait for a locally spanned worker task
880 /// Note: local workers should print logs to stdout, so there is no
881 /// need to fetch/display logs. We just wait for the worker to finish.
882 pub async
fn wait_for_local_worker(upid_str
: &str) -> Result
<(), Error
> {
884 let upid
: UPID
= upid_str
.parse()?
;
886 let sleep_duration
= core
::time
::Duration
::new(0, 100_000_000);
889 if worker_is_active_local(&upid
) {
890 tokio
::time
::sleep(sleep_duration
).await
;
898 /// Request abort of a local worker (if existing and running)
899 pub fn abort_local_worker(upid
: UPID
) {
900 if let Some(ref worker
) = WORKER_TASK_LIST
.lock().unwrap().get(&upid
.task_id
) {
901 worker
.request_abort();