Mercurial > hg
annotate i18n/polib.LICENSE @ 48793:6e559391f96e
tracked-key: remove the dual write and rename to tracked-hint
The dual-write approach was mostly useless. As explained in the previous version
of the help, the key had to be read twice before we could cache a value.
However this "read twice" limitation actually also apply to any usage of the
key. If some operation wants to rely of the "same value == same tracked set"
property it would need to read the value before, and after running that
operation (or at least, after, in all cases). So it cannot be sure the operation
it did is "valid" until checking the key after the operation. As a resultat such
operation can only be read-only or rollbackable.
This reduce the utility of the "same value == same tracked set" a lot.
So it seems simpler to drop the double write and to update the documentation to
highlight that this file does not garantee race-free operation. As a result the
"key" is demoted to a "hint".
Documentation is updated accordingly.
Differential Revision: https://phab.mercurial-scm.org/D12201
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 17 Feb 2022 07:34:49 +0100 |
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1 copyright (c) 2006-2010 David JEAN LOUIS |
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2 |
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3 Permission is hereby granted, free of charge, to any person obtaining a copy |
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4 of this software and associated documentation files (the "Software"), to deal |
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5 in the Software without restriction, including without limitation the rights |
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6 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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7 copies of the Software, and to permit persons to whom the Software is |
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8 furnished to do so, subject to the following conditions: |
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9 |
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10 The above copyright notice and this permission notice shall be included in all |
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11 copies or substantial portions of the Software. |
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12 |
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13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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14 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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16 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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17 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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18 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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19 SOFTWARE. |