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Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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A general linked list function, llist_reorder(), is introduced that will reorder
a list after a list element has changed.
Some refactoring to avoid code dupliction.
Background
The four linked lists of appointment panel items (appointments, recurring
appointments, events, recurring events) are kept sorted by inserting elements
in order, either when they are first loaded from disk or when new are added.
The ordering is by start time (numerical) and description (alphabetical).
The user is allowed to change start time as well as description. A change is
committed directly to the list item (unlike cut/paste where an item is deleted
and then inserted). This may break the order.
The order property is used when events are loaded from the evenlist into the
day_item vector, see LLIST_FIND_FOREACH_CONT, and when looking for the next
upcoming appointment, see apoint_check_next().
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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This completes our switch to the Linux kernel coding style. Note that we
still use deeply nested constructs at some places which need to be fixed
up later.
Converted using the `Lindent` script from the Linux kernel code base,
along with some manual fixes.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add 2013 to the copyright range for all source and documentation files.
Reported-by: Frederic Culot <frederic@culot.org>
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Convert our code base to adhere to Linux kernel coding style using
Lindent, with the following exceptions:
* Use spaces, instead of tabs, for indentation.
* Use 2-character indentations (instead of 8 characters).
Rationale: We currently have too much levels of indentation. Using
8-character tabs would make huge code parts unreadable. These need to be
cleaned up before we can switch to 8 characters.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add 2012 to the copyright range for all source and documentation files.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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In contrast to LLIST_{,TS}_FIND_FOREACH, these convenience macros search
for the first match and return successors until there is an item that
isn't matched by the filter callback. Any items beyond the first cut-off
are discarded.
Should be used when results are known to be continuous, such as
appointments and events belonging to a specific day etc.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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This convenience function can be used to return the successor of a list
item if it is matched by a filter callback and return NULL otherwise.
We will use this for an improved version of the LLIST_FIND_FOREACH macro
that can be used whenever results are known to be continuous.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Adding a tail pointer to each list increases memory footprint by four
bytes, while reducing the runtime of llist_add() from O(n) to O(1). In
testing, the time required to append 100000 elements to a linked list
was reduced from 29.245s to 0.009s.
Our second main concern is to reduce the runtime of llist_add_sorted()
when inserting elements from a presorted list (this is reduced from O(n)
to O(1) as well), since the data files contain appointments in sorted
order and are always processed front to back.
Some local numbers show how this speeds up calcurse startup (test set
with 50000 appointments):
0.22user 0.12system 0:00.35elapsed 99%CPU (0avgtext+0avgdata 5396maxresident)k
0inputs+8outputs (0major+1398minor)pagefaults 0swaps
As opposed to the unpatched binary:
21.97user 0.25system 0:22.23elapsed 99%CPU (0avgtext+0avgdata 5388maxresident)k
0inputs+48outputs (0major+1396minor)pagefaults 0swaps
This is a ~10000% increase in speed. Timings for reading random input
files generated by a script stay the same (32.391s vs. 31.776s).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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* Update copyright dates (use 2004-2011 as date range everywhere).
* Change copyright holder from "Frederic Culot" to "calcurse Development
Team".
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add LLIST_TS_* macros in a fashion similar to the already existing
LLIST_* macros. Unlike the non-thread-safe version, these include
LLIST_TS_LOCK and LLIST_TS_UNLOCK which can be used to lock (and unlock)
a list (hence the thread-safety).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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