[dpdk-dev] [PATCH v3 0/4] Rework cfgfile API to enable apps config file support

[Jacek Piasecki <jacekx.piasecki@intel.com>]

New API for cfgfile library allows to create a cfgfile at runtime, add new
section, add entry in a section, update existing entry and save cfgfile
structure to INI file - opens up the possibility to have applications
dynamically build up a proper DPDK configuration, rather than
having to have a pre-existing one. Due the new API functions, simplification
of load() function was made. One new unit test to TEST app was added. It
contains an example of a large INI file whose parsing requires multiple
reallocation of memory.

---
v3: 
	split one patchset into two distinct patchsets:
	1. cfgfile library and TEST app changes
	2. EAL changes and examples (this patchset depends on cfgfile)
v2:
  lib eal:
  	Rework of rte_eal_configure(struct rte_cfgfile *cfg, char *prgname).
	Now this function load data from cfg structure and did initial
	initialization of EAL arguments. Vdev argument are stored in different
	subsections eg. DPDK.vdev0, DPDK.vdev1 etc. After execution of this
	function it is necessary to call rte_eal_init to complete EAL
	initialization. There is no more merging arguments from different
	sources (cfg file and command line).
  	Added non_eal_configure to testpmd application.
	Function maintain the same functionality as rte_eal_configure but
	for non-eal arguments. 
  	Added config JSON feature to testpmd last patch from patchset contain
	example showing use of .json configuration files.

  lib cfgfile:
  	Rework of add_section(), add_entry() new implementation
  	New members allocated_entries/sections, free_entries/sections
	in rte_cfgfile structure, change in array of pointers
	**sections, **entries instead of *sections[], *entries[]
  	Add  set_entry() to update/overwrite already existing entry in cfgfile
	struct
  	Add save() function to save on disc cfgfile structure in INI format
  	Rework of existing load() function  simplifying the code
  	Add unit test realloc_sections() in TEST app for testing realloc/malloc
	of new API functions, add test for save() function

Jacek Piasecki (3):
  cfgfile: remove EAL dependency
  cfgfile: add new functions to API
  test/cfgfile: add new unit test

Kuba Kozak (1):
  cfgfile: rework of load function

 lib/librte_cfgfile/Makefile                      |   1 +
 lib/librte_cfgfile/rte_cfgfile.c                 | 397 +++++++++++++++--------
 lib/librte_cfgfile/rte_cfgfile.h                 |  76 +++++
 lib/librte_cfgfile/rte_cfgfile_version.map       |  11 +
 test/test/test_cfgfile.c                         |  40 +++
 test/test/test_cfgfiles/etc/realloc_sections.ini | 128 ++++++++
 6 files changed, 514 insertions(+), 139 deletions(-)
 create mode 100644 test/test/test_cfgfiles/etc/realloc_sections.ini

-- 
2.7.4