4a5aa6682d
This reverts renaming and usage of lib/*.h header files done 28-12-2012, reverting 2 commits: f871de0... build: make use of 76 lib/*.h renamed files ffd8e12... build: rename 76 lib/*.h files This also reverts removal of redundant include guard (redundant thanks to changes in above commits) done 2-12-2013, reverting 1 commit: c087374... curl_setup.h: remove redundant include guard This also reverts renaming and usage of lib/*.c source files done 3-12-2013, reverting 3 commits: 13606bb... build: make use of 93 lib/*.c renamed files 5b6e792... build: rename 93 lib/*.c files 7d83dff... build: commit 13606bbfde follow-up 1 Start of related discussion thread: http://curl.haxx.se/mail/lib-2013-01/0012.html Asking for confirmation on pushing this revertion commit: http://curl.haxx.se/mail/lib-2013-01/0048.html Confirmation summary: http://curl.haxx.se/mail/lib-2013-01/0079.html NOTICE: The list of 2 files that have been modified by other intermixed commits, while renamed, and also by at least one of the 6 commits this one reverts follows below. These 2 files will exhibit a hole in history unless git's '--follow' option is used when viewing logs. lib/curl_imap.h lib/curl_smtp.h
36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
hostip.c explained
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==================
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The main COMPILE-TIME DEFINES to keep in mind when reading the host*.c
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source file are these:
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CURLRES_IPV6 - this host has getaddrinfo() and family, and thus we use
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that. The host may not be able to resolve IPv6, but we don't really have to
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take that into account. Hosts that aren't IPv6-enabled have CURLRES_IPV4
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defined.
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CURLRES_ARES - is defined if libcurl is built to use c-ares for asynchronous
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name resolves. It cannot have ENABLE_IPV6 defined at the same time, as c-ares
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has no ipv6 support. This can be Windows or *nix.
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CURLRES_THREADED - is defined if libcurl is built to run under (native)
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Windows, and then the name resolve will be done in a new thread, and the
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supported asynch API will be the same as for ares-builds.
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If any of the two previous are defined, CURLRES_ASYNCH is defined too. If
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libcurl is not built to use an asynchronous resolver, CURLRES_SYNCH is
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defined.
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The host*.c sources files are split up like this:
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hostip.c - method-independent resolver functions and utility functions
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hostasyn.c - functions for asynchronous name resolves
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hostsyn.c - functions for synchronous name resolves
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hostares.c - functions for ares-using name resolves
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hostthre.c - functions for threaded name resolves
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hostip4.c - ipv4-specific functions
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hostip6.c - ipv6-specific functions
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The hostip.h is the single united header file for all this. It defines the
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CURLRES_* defines based on the config*.h and setup.h defines.
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