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Rewrite tile expiry (management of expired tiles) #747

Merged
merged 11 commits into from
Jul 3, 2017
Merged

Rewrite tile expiry (management of expired tiles) #747

merged 11 commits into from
Jul 3, 2017

Commits on Apr 21, 2017

  1. Rewrite backend of tile expiry 

    Expired tiles are now managed in a set containig the ID of the tiles as
64-bit integer numbers instead of a self-written tree structure. The
tile expiry is calculated on the maximum zoom level and all lower zoom
levels are calculated using simple bit shifts during the output of the
tile expiry list.
    @Nakaner
    Nakaner committed Apr 21, 2017
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  2. remove unnecessary code, write an expired tile only once (bugfix)

    @Nakaner
    Nakaner committed Apr 21, 2017
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  3. renaming quadtree and qt to quadkey

    @Nakaner
    Nakaner committed Apr 21, 2017
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  4. various minor corrections based on feedback 

    * use unsigned integers
* add additional comments
* prevent overflows on 32-bit machines
    @Nakaner
    Nakaner committed Apr 21, 2017
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  5. replace unordered sets by a sorted vector at output of expiry list

    @Nakaner
    Nakaner committed Apr 21, 2017
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  6. minor performance improvements for tile expiry 

    * don't try to insert a tile if the last insertion into the set was the
same tile
* switch loops in output method
    @Nakaner
    Nakaner committed Apr 21, 2017
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  7. add two test cases for the tile expiry

    @Nakaner
    Nakaner committed Apr 21, 2017
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  8. fix signed-to-unsigned warnings, use maxzoom=0 for "no tile expiry"

    @Nakaner
    Nakaner committed Apr 21, 2017
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  9. check if zoom levels for tile expiry are smaller than 32

    @Nakaner
    Nakaner committed Apr 21, 2017
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  10. replace binary integer literals by hexadecimal integer literals

    @Nakaner
    Nakaner committed Apr 21, 2017
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  11. uint32_t for zoom level in options_t, zoom level 0 for "no tile expiry" 

    The constructor of expire_tiles_t expects uint32_t and the conversion to
unsigned has to happen anywhere. In addition, some more checks on the
arguments supplied by the user and a unit test for option `-e` does not harm.

This commit adapts output_pgsql_t and output_multi_t because zoom level 0
for the tile expiry now means that no expiry output is requested.
    @Nakaner
    Nakaner committed Apr 21, 2017
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