[fabbione/kronosnet] 72eaa2: [compress] centralize handling of libref in compre...

Branch: refs/heads/dlopen Home: https://github.com/fabbione/kronosnet Commit: 72eaa2e3a513e6e525c795a390cd58a8262ce941 https://github.com/fabbione/kronosnet/commit/72eaa2e3a513e6e525c795a390cd58… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-08-26 (Sat, 26 Aug 2017) Changed paths: M libknet/compress.c M libknet/compress.h M libknet/compress_bzip2.c M libknet/compress_bzip2.h M libknet/compress_lz4.c M libknet/compress_lz4.h M libknet/compress_lzma.c M libknet/compress_lzma.h M libknet/compress_lzo2.c M libknet/compress_lzo2.h M libknet/compress_zlib.c M libknet/compress_zlib.h Log Message: ----------- [compress] centralize handling of libref in compress abstraction layer the complexity come from a mix and match of those modules that have/don't have .is_init/.init functions, and makes handling more delicate. This commit ensures that: - library is loaded only once (makes load_lib mandatory for every modules) - use knet_h->compress_int_data to track per handle init. modules providing .is_init,.init don't need set anything there unless they need to. - modules don't need to track libref anymore but they must provide a unload_lib/load_lib. - library are closed only once libref is 0. Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>