1 /*****************************************************************************\
3 * Name : recursive_file_copy *
4 * Author : Chris Koeritz *
6 *******************************************************************************
7 * Copyright (c) 2005-$now By Author. This program is free software; you can *
8 * redistribute it and/or modify it under the terms of the GNU General Public *
9 * License as published by the Free Software Foundation; either version 2 of *
10 * the License or (at your option) any later version. This is online at: *
11 * http://www.fsf.org/copyleft/gpl.html *
12 * Please send any updates to: fred@gruntose.com *
13 \*****************************************************************************/
15 #include "file_transfer_infoton.h"
16 #include "file_transfer_tentacle.h"
17 #include "recursive_file_copy.h"
19 #include <application/application_shell.h>
20 #include <basis/guards.h>
21 #include <filesystem/directory.h>
22 #include <filesystem/directory_tree.h>
23 #include <filesystem/filename.h>
24 #include <filesystem/filename_list.h>
25 #include <filesystem/heavy_file_ops.h>
26 #include <filesystem/huge_file.h>
27 #include <loggers/program_wide_logger.h>
28 #include <octopus/entity_defs.h>
29 #include <octopus/entity_data_bin.h>
30 #include <octopus/octopus.h>
31 #include <structures/static_memory_gremlin.h>
32 #include <textual/string_manipulation.h>
33 #include <timely/time_control.h>
35 using namespace application;
36 using namespace basis;
37 using namespace filesystem;
38 using namespace loggers;
39 using namespace structures;
40 using namespace textual;
41 using namespace timely;
45 #define DEBUG_RECURSIVE_FILE_COPY
46 // uncomment for noisier debugging.
48 #define FAKE_HOSTNAME "internal_fake_host"
51 #define LOG(s) CLASS_EMERGENCY_LOG(program_wide_logger::get(), s)
53 #define BASE_LOG(s) EMERGENCY_LOG(program_wide_logger::get(), s)
55 #define RETURN_ERROR_RFC(msg, err) { \
60 const int MAX_CHUNK_RFC_COPY_HIER = 1 * MEGABYTE;
61 // maximum size for each transfer chunk.
63 const int EXPECTED_MAXIMUM_TRANSFER_TIME = 10 * HOUR_ms;
64 // how long do we allow the scanned file lists to stay relevant.
65 // we allow it a long time, since this is a copy and not an active
68 recursive_file_copy::~recursive_file_copy() {}
70 const char *recursive_file_copy::outcome_name(const outcome &to_name)
71 { return common::outcome_name(to_name); }
73 outcome recursive_file_copy::copy_hierarchy(int transfer_mode,
74 const astring &source_dir, const astring &target_dir,
75 const string_array &includes, const astring &source_start)
77 FUNCDEF("copy_hierarchy");
80 string_array includes;
81 if (_global_argc >= 5) {
82 for (int i = 4; i < _global_argc; i++) {
83 includes += _global_argv[i];
88 const astring transfer_name = "snootums";
90 astring source_root = transfer_name;
91 if (source_start.t()) {
92 source_root += filename::default_separator() + source_start;
95 octopus ring_leader(FAKE_HOSTNAME, 10 * MEGABYTE);
96 file_transfer_tentacle *tran = new file_transfer_tentacle
97 (MAX_CHUNK_RFC_COPY_HIER, (file_transfer_tentacle::transfer_modes)transfer_mode);
98 ring_leader.add_tentacle(tran);
100 outcome add_ret = tran->add_correspondence(transfer_name, source_dir,
101 EXPECTED_MAXIMUM_TRANSFER_TIME);
102 if (add_ret != tentacle::OKAY)
103 RETURN_ERROR_RFC("failed to add the correspondence", NOT_FOUND);
105 //hmmm: this kind of object creation should be packaged in helper functions.
106 file_transfer_infoton *initiate = new file_transfer_infoton;
107 initiate->_request = true;
108 initiate->_command = file_transfer_infoton::BUILD_TARGET_TREE;
109 initiate->_src_root = source_root;
110 initiate->_dest_root = target_dir;
112 // make a directory snapshot with just directories, no files.
113 directory_tree target_area_just_dirs(source_dir, "*", true);
114 initiate->package_tree_info(target_area_just_dirs, includes);
116 octopus_entity ent = ring_leader.issue_identity();
117 octopus_request_id req_id(ent, 1);
118 outcome start_ret = ring_leader.evaluate(initiate, req_id);
119 if (start_ret != tentacle::OKAY)
120 RETURN_ERROR_RFC("failed to build target tree", NONE_READY);
122 file_transfer_infoton *reply_from_init
123 = (file_transfer_infoton *)ring_leader.acquire_specific_result(req_id);
124 if (!reply_from_init) {
125 LOG("spewing list of what IS there...");
126 LOG(ring_leader.responses().text_form());
127 RETURN_ERROR_RFC("no response to request to build target tree", NONE_READY);
130 if (reply_from_init->_success != OKAY) {
131 RETURN_ERROR_RFC("failed to get good result from building target tree", reply_from_init->_success);
134 //now repeating a lot of above to get tree compare going.
136 //hmmm: this kind of object creation should be packaged in helper functions.
137 file_transfer_infoton *comparison_req = new file_transfer_infoton;
138 comparison_req->_request = true;
139 comparison_req->_command = file_transfer_infoton::TREE_COMPARISON;
140 comparison_req->_src_root = source_root;
141 comparison_req->_dest_root = target_dir;
142 // make a directory snapshot with just directories, no files.
143 directory_tree target_area(target_dir);
145 //hmmm: simple asset counting debugging in calculate would be nice too.
146 target_area.calculate( !(transfer_mode & file_transfer_tentacle::COMPARE_CONTENT_SAMPLE) );
148 comparison_req->package_tree_info(target_area, includes);
150 ent = ring_leader.issue_identity();
151 req_id = octopus_request_id(ent, 1);
152 start_ret = ring_leader.evaluate(comparison_req, req_id);
153 if (start_ret != tentacle::OKAY)
154 RETURN_ERROR_RFC("failed to build target tree", NONE_READY);
156 reply_from_init = (file_transfer_infoton *)ring_leader.acquire_specific_result(req_id);
157 if (!reply_from_init) {
158 LOG("spewing list of what IS there...");
159 LOG(ring_leader.responses().text_form());
160 RETURN_ERROR_RFC("no response to request to build target tree", NONE_READY);
168 byte_array pack_copy = reply_from_init->_packed_data;
169 if (!diffs.unpack(pack_copy)) {
170 RETURN_ERROR_RFC("could not unpack filename list!", GARBAGE);
172 // LOG(astring("got list of diffs:\n") + diffs.text_form());
174 octopus client_spider(FAKE_HOSTNAME, 10 * MEGABYTE);
175 file_transfer_tentacle *tran2 = new file_transfer_tentacle
176 (MAX_CHUNK_RFC_COPY_HIER, (file_transfer_tentacle::transfer_modes)transfer_mode);
177 tran2->register_file_transfer(ent, source_root, target_dir, includes);
178 client_spider.add_tentacle(tran2);
180 octopus_request_id resp_id(ent, 2);
181 outcome ini_resp_ret = client_spider.evaluate(reply_from_init, resp_id);
182 if (ini_resp_ret != tentacle::OKAY)
183 RETURN_ERROR_RFC("failed to process the start response!", FAILURE);
185 infoton *junk = client_spider.acquire_specific_result(resp_id);
187 RETURN_ERROR_RFC("got a response we shouldn't have!", FAILURE);
189 astring current_file; // what file is in progress right now?
193 #ifdef DEBUG_RECURSIVE_FILE_COPY
194 LOG(a_sprintf("ongoing chunk %d", ++iter));
197 // keep going until we find a broken reply.
198 file_transfer_infoton *ongoing = new file_transfer_infoton;
199 ongoing->_request = true;
200 ongoing->_command = file_transfer_infoton::PLACE_FILE_CHUNKS;
201 ongoing->_src_root = source_root;
202 ongoing->_dest_root = target_dir;
204 octopus_request_id chunk_id(ent, iter + 10);
205 outcome place_ret = ring_leader.evaluate(ongoing, chunk_id);
206 if (place_ret != tentacle::OKAY)
207 RETURN_ERROR_RFC("failed to run ongoing transfer", FAILURE);
209 file_transfer_infoton *reply = (file_transfer_infoton *)ring_leader
210 .acquire_specific_result(chunk_id);
212 RETURN_ERROR_RFC("failed to get ongoing transfer reply", NONE_READY);
214 if (reply->_command == file_transfer_infoton::CONCLUDE_TRANSFER_MARKER) {
215 BASE_LOG(astring("finished transfer from \"") + source_dir
216 + "\" to \"" + target_dir + "\"");
220 byte_array copy = reply->_packed_data;
221 while (copy.length()) {
223 file_transfer_header head(empty);
224 if (!head.unpack(copy))
225 RETURN_ERROR_RFC("failed to unpack header", GARBAGE);
226 if (copy.length() < head._length)
227 RETURN_ERROR_RFC("not enough length in array", GARBAGE);
228 if (head._length > 0)
229 copy.zap(0, head._length - 1);
231 //hmmm: this needs better formatting, and should not repeat the same file name even
232 // if it's in multiple chunks.
233 BASE_LOG(head.readable_text_form());
236 RETURN_ERROR_RFC("still had data in array", GARBAGE);
238 octopus_request_id resp_id(ent, iter + 11);
239 outcome resp_ret = client_spider.evaluate(reply, resp_id);
240 if (resp_ret != tentacle::OKAY)
241 RETURN_ERROR_RFC("failed to process the transfer reply!", FAILURE);