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* Solve deadlock in notification barLars Henriksen2018-07-281-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | calcurse deadlocks when 1) an upcoming appointment is on display in the notification bar, 2) an external command (like help) is started, 3) the time for the upcoming appointment arrives, and 4) the external command is exited. The notification bar thread is stopped while the external command is running. Upon exit from the external command, the n-bar thread is restarted and calcurse locks. The cause is the way in which the main notification bar thread is stopped: static pthread_t notify_t_main; void notify_stop_main_thread(void) { if (notify_t_main) { pthread_cancel(notify_t_main); pthread_join(notify_t_main, NULL); } } Objects of type pthread_t are opaque and should not be accessed directly. Initially notify_t_main is an uninitialised static variable (0), but later it has a value, which may or may not be the thread id of the notification main thread. Note that the thread id after exit of a thread may become the thread id of a new thread. Thus the variable set when the thread is created, is invalid after exit of the thread. Specifically, the first time notify_stop_main_thread() is called (by notify_start_main_thread() before the thread is created) is harmless (because notify_t_main is 0). Calling notify_stop_main_thread() later may be either OK because the main thread is running, or harmless because no thread with id notify_t_main is running: the two functions will fail with return value ESRCH (no such process), or fatal because an unrelated thread with this thread id is running: it will be cancelled, and the join may or may not succeed depending on whether the thread is joinable or detached. The "unrelated thread" could be the next-appointment thread, notify_thread_app, launched by notify_check_next_app(). Always calling notify_stop_main_thread() before starting the main thread becomes fatal when notify_check_next_app() is called shortly before notify_start_main_thread(). This is the case in the scenario described. The next-app-thread is then running when notify_stop_main_thread() is called, and apparently it has the thread id of the old main thread (confirmed by logging the return values from pthread_cancel() and pthread_join(); the first succeeds while the second fails with EINVALID which means that the thread is not joinable). The next-app-thread will therefore exit without unlocking mutexes. Ensure that notify_t_main, in case the notify main thread is not running, has a value that it will never have when it is running. A possibility is the thread id of the main() calcurse process (returned by pthread_self()). Check for this condition in notify_stop_main_thread() and set notify_t_main when the thread is stopped. Similar changes have been introduced for the periodic save thread and the calendar date thread. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add CALCURSE_{EDITOR,PAGER,MERGETOOL} environment variablesLukas Fleischer2017-09-081-3/+9
| | | | | | | Support environment variables specific to calcurse to override $EDITOR, $PAGER and $MERGETOOL. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make the day heading position configurableLars Henriksen2017-09-081-0/+1
| | | | | | | | | The date at the top of the appointments list may be positioned either to the left, in the middle or to the right. Default is to the right. Can be configured from the general options menu. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use nl_langinfo() for month and day namesLars Henriksen2017-08-281-27/+1
| | | | | | | | Use the locale setting to fetch the month names and abbreviated day names. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make heading in appointments panel configurableLars Henriksen2017-08-281-0/+1
| | | | | | | | Add a new configuration variable format.dayheading to set the format of the date displayed at the top of the event and appointment list. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2017-01-121-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2016-01-301-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add command line option to suppress dialogsLukas Fleischer2016-01-131-0/+3
| | | | | | | Implement a -q/--quiet command line option to disable system dialogs temporarily. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add pre-save and post-save hooksLukas Fleischer2016-01-071-0/+1
| | | | | | | | | | | | | This adds support for hooks which are executed before/after saving calcurse data. Hooks can be placed under hooks/pre-save and hooks/post-save in the data directory and need to be executable. Potential use cases include: * Automatically commit any changes to the data files using a VCS. * Automatically sync with some sever component on data file changes. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2015-02-071-1/+1
| | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Let SIGUSR1 trigger a reloadTim Hentenaar2014-10-101-0/+3
| | | | | | | | | | | | | In an effort to better integrate the import process with external applications, it's desirable to have a mechanism by which external programs can trigger a reload of calcurse's data. This patch adds that functionality via SIGUSR1. The reload request is handled in the main loop. When the user is currently entering data, the request is delayed until the main loop is re-entered. Signed-off-by: Tim Hentenaar <tim@hentenaar.com> Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Allow for merging data files when reloadingLukas Fleischer2014-07-161-1/+6
| | | | | | | | This allows for merging the (unsaved) items with the items from the data files when invoking the reload operation. To this end, an external merge tool (defaults to vimdiff) is used. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Use tabs instead of spaces for indentationLukas Fleischer2013-04-141-66/+66
| | | | | | | | | | | 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>
* calendar.c: Rename to "ui-calendar.c"Lukas Fleischer2013-02-141-2/+2
| | | | | | | | | This unit belongs to the presentation layer -- rename the file accordingly. Also, rename calendar_*() to ui_calendar_*(). Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Update copyright rangesLukas Fleischer2013-02-041-1/+1
| | | | | | | 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>
* Add compact panels supportLukas Fleischer2012-11-251-0/+1
| | | | | | | | | | | | | Add a configuration option that allows for switching to compact panel mode. In this mode, all window labels are hidden, so that there's more space for actual information. This patch doesn't add a configuration menu entry and doesn't add any documentation. Implements FR#7. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Add configuration option to set a default panelLukas Fleischer2012-11-251-0/+1
| | | | | | | | | | | | | This allows for customizing the panel that is selected by default when calcurse is started. Note that this patch doesn't add any documentation. Also, this configuration option currently cannot be configured using the configuration menu. Implements FR#19. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Provide an array of available date input formatsBaptiste Jonglez2012-05-311-0/+8
| | | | | | | | This will allow to fix the current hardcoding of strings describing date input formats in multiple places. Signed-off-by: Baptiste Jonglez <baptiste--git@jonglez.org> Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Switch to Linux kernel coding styleLukas Fleischer2012-05-211-10/+10
| | | | | | | | | | | | | | 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>
* Declare several parameters/variables constantLukas Fleischer2012-05-081-3/+3
| | | | | | | | | | | | Add the "const" keyword to parameters and variables that are never modified. Most of these were spotted by "-Wwrite-strings". We cast the second parameter to execvp() explicitly as it expects a "char *const[]" where it should expect a "const char *const[]" (according to the documentation, this is due to compatibility reasons). This should be changed once we come up with a better solution. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fix semantics of "general."{systemdialogs,progressbar}Lukas Fleischer2012-03-291-2/+2
| | | | | | | | | These were renamed from "skip_"* to *. However, we only changed syntax and didn't invert their semantic meaning. Fix this by negating the semantics of those variables. Also, negate these in the configuration file automatically when running `calcurse-upgrade`. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Update copyright rangesLukas Fleischer2012-03-261-1/+1
| | | | | | Add 2012 to the copyright range for all source and documentation files. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Add a read-only optionLukas Fleischer2012-02-241-0/+3
| | | | | | | We don't save any configuration nor items if this is set. This should be used with care, and hence there's no short option for this. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Use a global configuration variableLukas Fleischer2011-11-141-12/+15
| | | | | | | This is one of the few valid use cases for a global variable. No need to make it pseudo-local and pass it from one function to another. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Merge branch 'maint'Lukas Fleischer2011-11-111-4/+2
|\ | | | | | | | | | | Conflicts: src/calcurse.h src/io.c
| * Do not hardcode paths to the default editor/pagerLukas Fleischer2011-10-041-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use "vi" instead of "/usr/bin/vi" and "less" instead of "/usr/bin/less". Hardcoding absolute paths is a bad idea: $ uname -rsv Linux 3.0-ARCH #1 SMP PREEMPT Tue Aug 30 07:32:23 UTC 2011 $ which less /bin/less The "$PATH" environment variable will almost always have a better idea of where these binaries are located. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Do not cast unused return values to voidLukas Fleischer2011-11-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A small style fix that removes all remaining "(void)" casts. Using these isn't encouraged in GNU coding guidelines and doesn't serve a certain purpose, except for satisfying a few static code analysis tools. We already nuked some of these in previous patches, but this semantic patch should fix what's left: @@ identifier func; @@ - (void)func ( + func ( ...); Long lines were re-formatted manually. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Add configuration option to run the GC on exitLukas Fleischer2011-10-051-0/+1
| | | | | | | | | | | | | | | | If "auto_gc" is enabled, the garbage collector for note files will be run on every exit. As this is an experimental feature and may cause data loss, this is disabled by default. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* | Declare foreground and background variables globalLukas Fleischer2011-07-211-0/+3
|/ | | | | | Removes the need to pass the terminal's default background color round. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Avoid redundant redraws on resizeLukas Fleischer2011-06-281-0/+1
| | | | | | | | | | Use a global flag to record whether the terminal was resized instead of redrawing everything each time a KEY_RESIZE is read. Add some additional checks to help_write_pad() as invalid actions may be passed now due to using signals instead of virtual key presses. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Update copyright notices in source files, documentation and "COPYING".Lukas Fleischer2011-04-221-1/+1
| | | | | | | | | * 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>
* Overall indentation fixes.Lukas Fleischer2011-03-141-3/+3
| | | | | | | Use spaces instead of tabs for source code indentation only, strip trailing whitespaces from lines. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Update website links to match the new URL.Lukas Fleischer2011-03-041-1/+1
| | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Update mail addresses to match the new mailing lists.Lukas Fleischer2011-03-041-1/+1
| | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Remove CVS "$Id" headers.Lukas Fleischer2011-03-031-2/+0
| | | | Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
* Fixed file permissions.Lukas Fleischer2011-03-031-0/+0
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* All headers gathered into a single one. Typedefs suppressed.Frederic Culot2010-03-201-14/+8
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* More work on implementing the daemon.Frederic Culot2009-08-011-1/+4
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* More work on implementing calcurse daemon.Frederic Culot2009-07-261-2/+3
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* Functions added to implement a logging mechanism for calcurse daemon.Frederic Culot2009-07-231-1/+2
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* stdbool header removed, unsigned type used insteadFrederic Culot2009-07-121-7/+7
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* Switch to BSD license.Frederic Culot2009-07-051-14/+26
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* Basic lock mechanism implemented to avoid having two calcurse instances ↵Frederic Culot2009-06-211-1/+2
| | | | running at the same time.
* code cleanupFrederic Culot2009-01-021-12/+5
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* Automatic periodic saves implementedFrederic Culot2008-12-281-1/+2
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* Added wrappers around libc's memory management functions, to easily debug ↵Frederic Culot2008-12-281-3/+10
| | | | memory usage
* More work on implementing user-definable keybindingsFrederic Culot2008-11-161-1/+2
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* Loading of user-configurable keys implementedFrederic Culot2008-11-091-1/+2
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* More work on ical import. Macros to handle errors and to display messages in ↵Frederic Culot2008-09-201-1/+8
| | | | both command-line and curses mode added
* Yet another style for source code. GNU style now used (I am fed up with tabs...)Frederic Culot2008-04-121-67/+68
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