FM / util

/usr/local/lib64/python3.6/site-packages/pyarrow/include/arrow/util/

/usr/local/lib64/python3.6/site-packages/pyarrow/include/arrow/util

Name	Size	Mode	Actions
algorithm.h	1229	0644	edit dl rm
aligned_storage.h	4302	0644	edit dl rm
align_util.h	2636	0644	edit dl rm
async_generator.h	64088	0644	edit dl rm
async_util.h	9633	0644	edit dl rm
atomic_shared_ptr.h	3640	0644	edit dl rm
base64.h	1098	0644	edit dl rm
basic_decimal.h	20334	0644	edit dl rm
benchmark_util.h	4584	0644	edit dl rm
bitmap.h	17463	0644	edit dl rm
bitmap_builders.h	1563	0644	edit dl rm
bitmap_generate.h	3563	0644	edit dl rm
bitmap_ops.h	9084	0644	edit dl rm
bitmap_reader.h	8347	0644	edit dl rm
bitmap_visit.h	3460	0644	edit dl rm
bitmap_writer.h	9360	0644	edit dl rm
bitset_stack.h	2789	0644	edit dl rm
bit_block_counter.h	19141	0644	edit dl rm
bit_run_reader.h	16599	0644	edit dl rm
bit_stream_utils.h	16986	0644	edit dl rm
bit_util.h	11568	0644	edit dl rm
bpacking.h	1175	0644	edit dl rm
bpacking64_default.h	195934	0644	edit dl rm
bpacking_avx2.h	1009	0644	edit dl rm
bpacking_avx512.h	1011	0644	edit dl rm
bpacking_default.h	103232	0644	edit dl rm
bpacking_neon.h	1009	0644	edit dl rm
bpacking_simd128_generated.h	98529	0644	edit dl rm
bpacking_simd256_generated.h	77475	0644	edit dl rm
bpacking_simd512_generated.h	67081	0644	edit dl rm
byte_stream_split.h	28784	0644	edit dl rm
cancel.h	2911	0644	edit dl rm
checked_cast.h	2076	0644	edit dl rm
compare.h	1981	0644	edit dl rm
compression.h	7367	0644	edit dl rm
concurrent_map.h	1775	0644	edit dl rm
config.h	1659	0644	edit dl rm
converter.h	14657	0644	edit dl rm
counting_semaphore.h	2251	0644	edit dl rm
cpu_info.h	4724	0644	edit dl rm
decimal.h	11687	0644	edit dl rm
delimiting.h	7335	0644	edit dl rm
dispatch.h	3235	0644	edit dl rm
double_conversion.h	1195	0644	edit dl rm
endian.h	8071	0644	edit dl rm
formatting.h	20612	0644	edit dl rm
functional.h	5612	0644	edit dl rm
future.h	36168	0644	edit dl rm
future_iterator.h	2517	0644	edit dl rm
hashing.h	30633	0644	edit dl rm
hash_util.h	1914	0644	edit dl rm
int_util.h	4284	0644	edit dl rm
io_util.h	10326	0644	edit dl rm
iterator.h	18123	0644	edit dl rm
key_value_metadata.h	3579	0644	edit dl rm
launder.h	1051	0644	edit dl rm
logging.h	9338	0644	edit dl rm
macros.h	7349	0644	edit dl rm
make_unique.h	1475	0644	edit dl rm
map.h	2476	0644	edit dl rm
math_constants.h	1106	0644	edit dl rm
memory.h	1566	0644	edit dl rm
mutex.h	1833	0644	edit dl rm
optional.h	1174	0644	edit dl rm
parallel.h	3616	0644	edit dl rm
pcg_random.h	1146	0644	edit dl rm
print.h	1725	0644	edit dl rm
queue.h	1017	0644	edit dl rm
range.h	4834	0644	edit dl rm
rle_encoding.h	31029	0644	edit dl rm
simd.h	1333	0644	edit dl rm
small_vector.h	14660	0644	edit dl rm
sort.h	2466	0644	edit dl rm
spaced.h	3567	0644	edit dl rm
stopwatch.h	1401	0644	edit dl rm
string.h	2570	0644	edit dl rm
string_builder.h	2446	0644	edit dl rm
string_view.h	1269	0644	edit dl rm
task_group.h	4362	0644	edit dl rm
tdigest.h	3052	0644	edit dl rm
test_common.h	2837	0644	edit dl rm
thread_pool.h	15338	0644	edit dl rm
time.h	2988	0644	edit dl rm
trie.h	7157	0644	edit dl rm
type_fwd.h	1409	0644	edit dl rm
type_traits.h	2894	0644	edit dl rm
ubsan.h	2777	0644	edit dl rm
unreachable.h	926	0644	edit dl rm
uri.h	3297	0644	edit dl rm
utf8.h	18780	0644	edit dl rm
value_parsing.h	27056	0644	edit dl rm
variant.h	13728	0644	edit dl rm
vector.h	5665	0644	edit dl rm
visibility.h	1463	0644	edit dl rm
windows_compatibility.h	1260	0644	edit dl rm
windows_fixup.h	1379	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/pyarrow/include/arrow/util/task_group.h (4362B)

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once

#include <memory>
#include <utility>

#include "arrow/status.h"
#include "arrow/type_fwd.h"
#include "arrow/util/cancel.h"
#include "arrow/util/functional.h"
#include "arrow/util/macros.h"
#include "arrow/util/type_fwd.h"
#include "arrow/util/visibility.h"

namespace arrow {
namespace internal {

/// \brief A group of related tasks
///
/// A TaskGroup executes tasks with the signature `Status()`.
/// Execution can be serial or parallel, depending on the TaskGroup
/// implementation.  When Finish() returns, it is guaranteed that all
/// tasks have finished, or at least one has errored.
///
/// Once an error has occurred any tasks that are submitted to the task group
/// will not run.  The call to Append will simply return without scheduling the
/// task.
///
/// If the task group is parallel it is possible that multiple tasks could be
/// running at the same time and one of those tasks fails.  This will put the
/// task group in a failure state (so additional tasks cannot be run) however
/// it will not interrupt running tasks.  Finish will not complete
/// until all running tasks have finished, even if one task fails.
///
/// Once a task group has finished new tasks may not be added to it.  If you need to start
/// a new batch of work then you should create a new task group.
class ARROW_EXPORT TaskGroup : public std::enable_shared_from_this<TaskGroup> {
 public:
  /// Add a Status-returning function to execute.  Execution order is
  /// undefined.  The function may be executed immediately or later.
  template <typename Function>
  void Append(Function&& func) {
    return AppendReal(std::forward<Function>(func));
  }

/// Wait for execution of all tasks (and subgroups) to be finished,
  /// or for at least one task (or subgroup) to error out.
  /// The returned Status propagates the error status of the first failing
  /// task (or subgroup).
  virtual Status Finish() = 0;

/// Returns a future that will complete the first time all tasks are finished.
  /// This should be called only after all top level tasks
  /// have been added to the task group.
  ///
  /// If you are using a TaskGroup asynchronously there are a few considerations to keep
  /// in mind.  The tasks should not block on I/O, etc (defeats the purpose of using
  /// futures) and should not be doing any nested locking or you run the risk of the tasks
  /// getting stuck in the thread pool waiting for tasks which cannot get scheduled.
  ///
  /// Primarily this call is intended to help migrate existing work written with TaskGroup
  /// in mind to using futures without having to do a complete conversion on the first
  /// pass.
  virtual Future<> FinishAsync() = 0;

/// The current aggregate error Status.  Non-blocking, useful for stopping early.
  virtual Status current_status() = 0;

/// Whether some tasks have already failed.  Non-blocking, useful for stopping early.
  virtual bool ok() const = 0;

/// How many tasks can typically be executed in parallel.
  /// This is only a hint, useful for testing or debugging.
  virtual int parallelism() = 0;

static std::shared_ptr<TaskGroup> MakeSerial(StopToken = StopToken::Unstoppable());
  static std::shared_ptr<TaskGroup> MakeThreaded(internal::Executor*,
                                                 StopToken = StopToken::Unstoppable());

virtual ~TaskGroup() = default;

protected:
  TaskGroup() = default;
  ARROW_DISALLOW_COPY_AND_ASSIGN(TaskGroup);

virtual void AppendReal(FnOnce<Status()> task) = 0;
};

}  // namespace internal
}  // namespace arrow

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