Merge pull request !5672 from xiefangqi/xfq_fix_schema

fix to support schema=nullptr

Merge pull request !5085 from lixiachen/cache_hostname

Merge pull request !5354 from xiefangqi/fix_randomdata_columnlist

Merge pull request !5278 from luoyang/c-api

& null sampler, add check for duplicate column name

Turn --stop into sync

Ignore the rc of shutdown

Merge pull request !4772 from EricZ/ms-album

Added linter fix for album dataset

Added testDataset

Adding signature

Added JsonDataset example API

Example dataset

Resolving format

More fixing

Refactor

Small fix

Added compiling album dataset

Running tests

Added linter fix #1

Passing UT

Added dataset API

Addressing clang

Clang part 2

Fixing pass

Fixed tree check

lint fix

Added lint fix part 2

Merge pull request !4955 from MahdiRahmaniHanzaki/dynamic-ops-fix

Merge pull request !4953 from cathwong/ckw_c_api_fixes1

updated c color op descriptions

Merge pull request !4776 from ZiruiWu/map_callback_follow_up

fix review cmts

fix ci

fix Ci

fixci

address ci

ci

- add timeout
- add more test cases

fix CI

address review cmts

Merge pull request !4863 from luoyang/c-api-pyfunc

Merge pull request !4820 from shenwei41/sw_master

Merge pull request !4314 from nhussain/clean_up_bindings

implment pause in MapOp, added more to callback

add ds_callback

- Initial drop of Python DSCallback

- Pybind DSCallback

- Pybind DSCallback

added callback to mapOp

- de_pipeline DSCallback

- de_pipeline DSCallback

add test case, segfault for now

fix seg fault

- de_pipeline DSCallback

remove 1 line

update callback test case, now works

use builder class for mapOp callback

- de_pipeline DSCallback

- de_pipeline DSCallback

- de_pipeline DSCallback

better test case

minor fix

add comments and minor clean ups

get rid of nullptr in MapOp, use other flag instead

fix a bug ParseMapOp only takes 1 callback

- Added WaitedDSCalabck

refactor callback param

fix text case incorrect number

- added testing

fix cpp test case

- added testing

- revert back lenet changes

- cleanup test_callbacks.py

- cleanup test_callbacks.py

fix CI stage I

fix CI stage II

fix CI and update epoch counter

- add validation
- add more testing  test_callbacks.py

use random data op to do tests

adjust when to call EpochBegin/End

- add repeat with callback

- addressing reviewers' comments

- docstring and CI fixes

- docstring and CI fixes

- docstring and CI fixes

- rebase with upstream/master

fix cpp test case

fix review comments

addr review cmts, add test case

Merge pull request !4696 from jiangzhiwen/jzw/c_api_csv

Merge pull request !4498 from heleiwang/gnn_distributed

Merge pull request !4422 from xiefangqi/xfq_c++api_randomdata

try to display image

Merge pull request !4630 from EricZ/md_tensor_from_mem

Merge pull request !4367 from MahdiRahmaniHanzaki/cutmix

Merge pull request !3769 from Alexey_Shevlyakov/ColorOp