96fdf1efbd
ck_cc: new bitwise ops
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GCC and compatible compilers support ffs/ctz/clz/popcount. Expose that
in ck_cc and default to slow but portable software emulation.
11 years ago
176dfce5c3
ck_rwlock: Fix conflict.
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ck_swlock will be a copy-safe single-writer multi-reader lock that
will meet our requirements.
11 years ago
e2913ab9c0
Revert "ck_rwlock: Migrate to 32-bit primitives and add a write_latch operation."
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This reverts commit 210b724061
11 years ago
6ccfb84d81
Revert "ck_rwlock: Use sub for unlatch operation."
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This reverts commit b7c3c8a43d
11 years ago
ed476a617c
Revert "ck_rwlock: Clear reader bits on unlatch operation."
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This reverts commit 7f945460bc
11 years ago
cdfac8213f
Revert "ck_rwlock: Re-observe latch bits if necessary."
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This reverts commit fa28622386
11 years ago
88d323f40d
Revert "ck_rwlock: Acquire semantics for ordering on latch bits."
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This reverts commit 2b567320de
11 years ago
9ebd19a124
Revert "ck_rwlock: Add ck_rwlock_read_latchlock operation."
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This reverts commit bc7ebc62eb
11 years ago
cf097db790
Revert "ck_rwlock: Ignore latch bits on write lock operation."
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This reverts commit 8173b937bf
11 years ago
e2bd885953
Revert "ck_rwlock: Re-organization of write-side operations and latch support for write_trylock."
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This reverts commit ab22fda4e7
11 years ago
9aad0125af
Revert "ck_rwlock: Additional re-organization of write-side functions."
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This reverts commit d9b86d2d89
11 years ago
d3a7adaf8c
Revert "ck_rwlock: Additional reorganization."
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This reverts commit 56de32fffd
11 years ago
2a701163eb
ck_rwlock: Ditch ck_rwlock latch for ck_swlock.
11 years ago
56de32fffd
ck_rwlock: Additional reorganization.
11 years ago
d9b86d2d89
ck_rwlock: Additional re-organization of write-side functions.
11 years ago
ab22fda4e7
ck_rwlock: Re-organization of write-side operations and latch support for write_trylock.
11 years ago
8173b937bf
ck_rwlock: Ignore latch bits on write lock operation.
11 years ago
bc7ebc62eb
ck_rwlock: Add ck_rwlock_read_latchlock operation.
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This avoids degradation on read_lock path for use-cases not
requiring latch semantics.
11 years ago
2b567320de
ck_rwlock: Acquire semantics for ordering on latch bits.
11 years ago
fa28622386
ck_rwlock: Re-observe latch bits if necessary.
11 years ago
7f945460bc
ck_rwlock: Clear reader bits on unlatch operation.
11 years ago
b7c3c8a43d
ck_rwlock: Use sub for unlatch operation.
11 years ago
3cae483bce
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
210b724061
ck_rwlock: Migrate to 32-bit primitives and add a write_latch operation.
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write_latch allows writers to prevent incoming read acquisitions from
succeeding while permitting write_lock operations to complete. This is
useful if multiple writers are cooperating in linearizing a non-blocking
data structure and allows for lock state to be copied by the write lock
holder safely.
In collaboration with Paul Khuong and Jaidev Sridhar.
11 years ago
f8b41af77c
x86_64: Require 32-bit immediate values for expansion.
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Pointed out by Paul Khuong, who ran into issues with immediates
while working on improvements to ck_bitmap.
11 years ago
cefd6bc9ec
ck_ring: Remove stale comment from pre-memcpy implementation.
11 years ago
396ceb16bb
ck_ring: Fix typo in type-specialized ck_ring_dequeue_tryspmc.
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Thanks to Paul Khuong <pkhuong@appnexus> for patch.
11 years ago
671d067ea0
ck_bytelock: Fix casting error affecting 32-bit architectures.
11 years ago
81f267ce62
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
b97b0021f9
ck_barrier: Just pass-through tournament barrier with only one participating thread.
11 years ago
15ce0501d2
ck_sequence: Add branch hint for short-circuit.
11 years ago
cb8f5f9ebb
ck_hp_fifo: Add deinit routine to allow reclaiming stub node.
11 years ago
c75e470ed4
ck_fifo_spsc: De-initialize from head.
11 years ago
06feae82f3
ck_hp_fifo: No need for volatile atomic stores on initialization.
11 years ago
5ec8191ded
ck_fifo: Add ck_fifo_*_deinit routines.
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These allow for reclamation of garbage node in an empty FIFO.
Based on patch submitted by Rajesh R <rr01803@gm....>.
11 years ago
15ac0bc691
ck_bitmap: Fix length calculation error in ck_bitmap_union (crasher).
11 years ago
08be876fa6
ck_bytelock: Correctly compute byte sequence length for readers.
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Thanks to Albi Kavo <albi.kavo@gm...> for spotting this.
11 years ago
190b204059
ck_bitmap: Drop _mpmc suffix and add union operation.
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The _mpmc suffix is not useful. I see little benefit to specializing
the bitmap to begin with.
11 years ago
76e43825a7
Merge remote-tracking branch 'origin/cognet'
11 years ago
b8c801136a
ck_bytelock: Fix deadlock for unslotted reader workloads.
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There is an off-by-one for slot ID sizeof(bytelock->readers) + 1.
This patch fixes the handling of this slot ID. Based off a patch
submitted by Albi Kavo <albi.kavo@gma....>.
11 years ago
59cedf10c6
ck_rhs: Add a read mostly mode.
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Add a read-mostly mode, in which entries won't share cache lines with
associated datas (probes, probe_bound, etc).
This makes write operations slower, but make get faster.
11 years ago
bf686c0a42
ck_rhs: Add.
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Introduce ck_rhs, a variant of ck_hs that uses the robin hood algorithm for
insertion, and backward shift delete for deletion.
11 years ago
c197b37df1
legal: Update Copyright statements.
11 years ago
0c4ed1d14f
ck_pflock: Use store barrier on init.
11 years ago
0353cdcb23
ck_rwlock: Migrate to acquire / release and other barrier improvements.
11 years ago
38c40315a2
ck_brlock: Use store barrier on initialization.
11 years ago
ac8397d8b5
ck_rwcohort: Migrate to acquire / release.
11 years ago
5280253974
ck_pflock: Use precise barrier in read_unlock.
11 years ago
febdb8c164
ck_brlock: Use precise barrier for read_unlock.
11 years ago
0c205740aa
ck_pflock: Migrate to acquire / release.
11 years ago
Paul Khuong
Samy Al Bahra
Samy Al Bahra
User Doginou
Olivier Houchard