[PATCH v5 0/8] refactor the filter process code into a reusable module

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Hopefully final spin.  Updates patch 6 to rename additional instances
of "filter" in comment and error messages.

Refactor the filter.<driver>.process code into a separate sub-process
module that can be used to reduce the cost of starting up a sub-process
for multiple commands.  It does this by keeping the external process
running and processing all commands by communicating over standard input
and standard output using the packet format (pkt-line) based protocol.
Full documentation is in Documentation/technical/api-sub-process.txt.

This code is refactored from:

	Commit edcc85814c ("convert: add filter.<driver>.process option", 2016-10-16)
	keeps the external process running and processes all commands

Ben Peart (8):
  pkt-line: add packet_read_line_gently()
  convert: move packet_write_list() into pkt-line as packet_writel()
  convert: Split start_multi_file_filter into two separate functions
  convert: Separate generic structures and variables from the filter
    specific ones
  convert: Update generic functions to only use generic data structures
  convert: rename reusable sub-process functions
  sub-process: move sub-process functions into separate files
  convert: Update subprocess_read_status to not die on EOF

 Documentation/technical/api-sub-process.txt |  54 ++++++++++
 Makefile                                    |   1 +
 convert.c                                   | 159 +++++-----------------------
 pkt-line.c                                  |  31 ++++++
 pkt-line.h                                  |  11 ++
 sub-process.c                               | 120 +++++++++++++++++++++
 sub-process.h                               |  46 ++++++++
 7 files changed, 292 insertions(+), 130 deletions(-)
 create mode 100644 Documentation/technical/api-sub-process.txt
 create mode 100644 sub-process.c
 create mode 100644 sub-process.h

-- 
2.12.0.windows.1.31.g1548525701.dirty




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