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This brings us up-to-date with ccan/list
5dbd87b876434dd703dfcc30cb0503118aac2076
git://git.ozlabs.org/~ccan/ccan
This is a combination of 3 commits from ccan:
list: add parens to gaurd macro args in LIST_INIT
ccan/list: Add list_empty_nocheck
list: trivial: fix typos in list_for_each_off's documentation
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62152 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ccan commit 6aaca17e07588997417a73fac19dcf0ff17ed81b
("list: suppress unused argument warnings")
by Cody P Shafer.
Signed-off-by: Cody P Schafer <dev@codyps.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51776 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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This includes the following 5 commits from ccan upstream:
list: list_add_after and list_add_before functions
list: list_swap to exchange elements
list: new list_for_each{, _safe}_off_dir_ macros
list: add list_for_each_rev_off macro
list: add list_for_each_rev_safe{,_off} macros
This syncs us with commit c2fbfe5282ba264f3485586e7efa8a5967f2d386
in git://git.ozlabs.org/~ccan/ccan
These ccan commits should allow us to implement compile.c and
st.c using ccan/list to reduce duplicated linked-list logic.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* ccan/container_of/container_of.h (container_of_or_null): added
[ccan 7ec5b8e06b2fd5fa98b1fcde1158c286d2d429d8] (David Gibson)
It's quite common to have a pointer which could be either a pointer to a
structure member, or NULL. This needs special casing with container_of(),
or it will convert NULL into something strange.
This patch adds container_of_or_null(), which will return NULL if passed
(an appropriately typed) NULL, or the containining structure as
container_of() otherwise.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* ccan/list/list.h (list_del_init, list_node_init): new functions
for multiple list_del() calls
[ccan ec8654d94d3c5c47aa5f82698f7e8048c79765b1] (Rusty Russell)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47577 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* ccan/container_of/container_of.h (container_off_var):
avoid warning with -Wcast-qual
[ccan ba5ad771af4aa9e085498de6c3c665c52694460f (Rusty Russell)]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46548 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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A doubly-linked list for tracking living threads guarantees
constant-time insert/delete performance with no corner cases of a
hash table. I chose this ccan implementation of doubly-linked
lists over the BSD sys/queue.h implementation since:
1) insertion and removal are both branchless
2) locality is improved if a struct may be a member of multiple lists
(0002 patch in Feature 9632 will introduce a secondary list
for waiting FDs)
This also increases cache locality during iteration: improving
performance in a new IO#close benchmark with many sleeping threads
while still scanning the same number of threads.
vm_thread_close 1.762
* vm_core.h (rb_vm_t): list_head and counter for living_threads
(rb_thread_t): vmlt_node for living_threads linkage
(rb_vm_living_threads_init): new function wrapper
(rb_vm_living_threads_insert): ditto
(rb_vm_living_threads_remove): ditto
* vm.c (rb_vm_living_threads_foreach): new function wrapper
* thread.c (terminate_i, thread_start_func_2, thread_create_core,
thread_fd_close_i, thread_fd_close): update to use new APIs
* vm.c (vm_mark_each_thread_func, rb_vm_mark, ruby_vm_destruct,
vm_memsize, vm_init2, Init_VM): ditto
* vm_trace.c (clear_trace_func_i, rb_clear_trace_func): ditto
* benchmark/bm_vm_thread_close.rb: added to show improvement
* ccan/build_assert/build_assert.h: added as a dependency of list.h
* ccan/check_type/check_type.h: ditto
* ccan/container_of/container_of.h: ditto
* ccan/licenses/BSD-MIT: ditto
* ccan/licenses/CC0: ditto
* ccan/str/str.h: ditto (stripped of unused macros)
* ccan/list/list.h: ditto
* common.mk: add CCAN_LIST_INCLUDES
[ruby-core:61871][Feature 9632 (part 1)]
Apologies for the size of this commit, but I think a good
doubly-linked list will be useful for future features, too.
This may be used to add ordering to a container_of-based hash
table to preserve compatibility if required (e.g. feature 9614).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45913 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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