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150 lines
6.0 KiB
150 lines
6.0 KiB
6 years ago
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/* =========================================================================
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zdir - work with file-system directories
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Copyright (c) the Contributors as noted in the AUTHORS file.
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This file is part of CZMQ, the high-level C binding for 0MQ:
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http://czmq.zeromq.org.
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/.
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=========================================================================
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*/
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#ifndef __ZDIR_H_INCLUDED__
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#define __ZDIR_H_INCLUDED__
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#ifdef __cplusplus
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extern "C" {
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#endif
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// @warning THE FOLLOWING @INTERFACE BLOCK IS AUTO-GENERATED BY ZPROJECT
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// @warning Please edit the model at "api/zdir.api" to make changes.
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// @interface
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// This is a stable class, and may not change except for emergencies. It
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// is provided in stable builds.
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// Create a new directory item that loads in the full tree of the specified
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// path, optionally located under some parent path. If parent is "-", then
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// loads only the top-level directory, and does not use parent as a path.
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CZMQ_EXPORT zdir_t *
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zdir_new (const char *path, const char *parent);
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// Destroy a directory tree and all children it contains.
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CZMQ_EXPORT void
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zdir_destroy (zdir_t **self_p);
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// Return directory path
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CZMQ_EXPORT const char *
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zdir_path (zdir_t *self);
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// Return last modification time for directory.
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CZMQ_EXPORT time_t
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zdir_modified (zdir_t *self);
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// Return total hierarchy size, in bytes of data contained in all files
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// in the directory tree.
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CZMQ_EXPORT off_t
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zdir_cursize (zdir_t *self);
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// Return directory count
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CZMQ_EXPORT size_t
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zdir_count (zdir_t *self);
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// Returns a sorted list of zfile objects; Each entry in the list is a pointer
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// to a zfile_t item already allocated in the zdir tree. Do not destroy the
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// original zdir tree until you are done with this list.
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// Caller owns return value and must destroy it when done.
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CZMQ_EXPORT zlist_t *
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zdir_list (zdir_t *self);
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// Remove directory, optionally including all files that it contains, at
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// all levels. If force is false, will only remove the directory if empty.
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// If force is true, will remove all files and all subdirectories.
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CZMQ_EXPORT void
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zdir_remove (zdir_t *self, bool force);
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// Calculate differences between two versions of a directory tree.
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// Returns a list of zdir_patch_t patches. Either older or newer may
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// be null, indicating the directory is empty/absent. If alias is set,
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// generates virtual filename (minus path, plus alias).
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// Caller owns return value and must destroy it when done.
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CZMQ_EXPORT zlist_t *
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zdir_diff (zdir_t *older, zdir_t *newer, const char *alias);
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// Return full contents of directory as a zdir_patch list.
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// Caller owns return value and must destroy it when done.
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CZMQ_EXPORT zlist_t *
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zdir_resync (zdir_t *self, const char *alias);
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// Load directory cache; returns a hash table containing the SHA-1 digests
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// of every file in the tree. The cache is saved between runs in .cache.
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// Caller owns return value and must destroy it when done.
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CZMQ_EXPORT zhash_t *
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zdir_cache (zdir_t *self);
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// Print contents of directory to open stream
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CZMQ_EXPORT void
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zdir_fprint (zdir_t *self, FILE *file, int indent);
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// Print contents of directory to stdout
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CZMQ_EXPORT void
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zdir_print (zdir_t *self, int indent);
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// Create a new zdir_watch actor instance:
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//
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// zactor_t *watch = zactor_new (zdir_watch, NULL);
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//
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// Destroy zdir_watch instance:
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//
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// zactor_destroy (&watch);
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//
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// Enable verbose logging of commands and activity:
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//
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// zstr_send (watch, "VERBOSE");
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//
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// Subscribe to changes to a directory path:
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//
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// zsock_send (watch, "ss", "SUBSCRIBE", "directory_path");
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//
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// Unsubscribe from changes to a directory path:
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//
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// zsock_send (watch, "ss", "UNSUBSCRIBE", "directory_path");
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//
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// Receive directory changes:
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// zsock_recv (watch, "sp", &path, &patches);
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//
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// // Delete the received data.
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// free (path);
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// zlist_destroy (&patches);
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CZMQ_EXPORT void
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zdir_watch (zsock_t *pipe, void *unused);
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// Self test of this class.
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CZMQ_EXPORT void
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zdir_test (bool verbose);
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// @end
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// Returns a sorted array of zfile objects; returns a single block of memory,
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// that you destroy by calling zstr_free(). Each entry in the array is a pointer
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// to a zfile_t item already allocated in the zdir tree. The array ends with
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// a null pointer. Do not destroy the original zdir tree until you are done
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// with this array.
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CZMQ_EXPORT zfile_t **
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zdir_flatten (zdir_t *self);
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// Free a provided string, and nullify the parent pointer. Safe to call on
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// a null pointer.
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CZMQ_EXPORT void
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zdir_flatten_free (zfile_t ***files_p);
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#ifdef __cplusplus
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}
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#endif
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// Deprecated method aliases
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#define zdir_dump(s,i) zdir_print(s,i)
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#endif
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