ZIP_REGISTER_CANCEL_CALLBACK_WITH_STATE(3)            Library Functions Manual

NAME
     zip_register_cancel_callback_with_state - allow cancelling during
     zip_close

LIBRARY
     libzip (-lzip)

SYNOPSIS
     #include <zip.h>

     typedef int (*zip_cancel_callback)(zip_t *, void *);

     void
     zip_register_cancel_callback_with_state(zip_t *archive,
         zip_cancel_callback callback, void (*ud_free)(void *), void *ud);

DESCRIPTION
     This function can be used to cancel writing of a zip archive during
     zip_close(3).

     The zip_register_cancel_callback_with_state() function registers a
     callback function callback for the zip archive archive.  The ud_free
     function is called during cleanup for deleting the userdata supplied in
     ud.

     The callback function is called during zip_close(3) in regular intervals
     (after every zip archive entry that's completely written to disk, and
     while writing data for entries) with zip archive archive and the user-
     provided user-data ud as arguments.  When the callback function returns a
     non-zero value, writing is cancelled and zip_close(3) returns an error.

     The callback function should be fast, since it will be called often.

SEE ALSO
     libzip(3), zip_close(3), zip_register_progress_callback_with_state(3)

HISTORY
     zip_register_cancel_callback_with_state() was added in libzip 1.6.0.

AUTHORS
     Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>

Linux 6.7.4-arch1-1              June 18, 2022             Linux 6.7.4-arch1-1