| .\" Automatically generated from an mdoc input file. Do not edit. |
| .\" zip_register_progress_callback_with_state.mdoc -- provide updates during zip_close |
| .\" Copyright (C) 2017-2021 Dieter Baron and Thomas Klausner |
| .\" |
| .\" This file is part of libzip, a library to manipulate ZIP archives. |
| .\" The authors can be contacted at <libzip@nih.at> |
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| .TH "ZIP_REGISTER_PROGRESS_CALLBACK_WITH_STATE" "3" "December 18, 2017" "NiH" "Library Functions Manual" |
| .nh |
| .if n .ad l |
| .SH "NAME" |
| \fBzip_register_progress_callback_with_state\fR |
| \- provide updates during zip_close |
| .SH "LIBRARY" |
| libzip (-lzip) |
| .SH "SYNOPSIS" |
| \fB#include <zip.h>\fR |
| .sp |
| \fItypedef void (*zip_progress_callback)(zip_t *, double, void *);\fR |
| .sp |
| \fIvoid\fR |
| .br |
| .PD 0 |
| .HP 4n |
| \fBzip_register_progress_callback_with_state\fR(\fIzip_t\ *archive\fR, \fIdouble\ precision\fR, \fIzip_progress_callback\ callback\fR, \fIvoid\ (*ud_free)(void\ *)\fR, \fIvoid\ *ud\fR); |
| .PD |
| .SH "DESCRIPTION" |
| The |
| \fBzip_register_progress_callback_with_state\fR() |
| function registers a callback function |
| \fIcallback\fR |
| for the zip archive |
| \fIarchive\fR. |
| The |
| \fIprecision\fR |
| argument is a double in the range from 0.00 to 1.0 that defines the |
| smallest change for which the callback should be called (to avoid too |
| frequent calls). |
| The |
| \fIud_free\fR |
| function is called during cleanup for deleting the userdata supplied in |
| \fIud\fR. |
| .PP |
| 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 |
| \fIarchive\fR, |
| the current progression state as a |
| \fIdouble\fR, |
| and the user-provided user-data |
| \fIud\fR |
| as arguments. |
| The progression state is a |
| \fIdouble\fR |
| in the range from 0.0 to 1.0. |
| This can be used to provide progress indicators for user interfaces. |
| .SH "SEE ALSO" |
| libzip(3), |
| zip_close(3), |
| zip_register_cancel_callback_with_state(3) |
| .SH "HISTORY" |
| \fBzip_register_progress_callback_with_state\fR() |
| was added in libzip 1.3.0. |
| .SH "AUTHORS" |
| Dieter Baron <\fIdillo@nih.at\fR> |
| and |
| Thomas Klausner <\fItk@giga.or.at\fR> |