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pfstasks.c
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/* Copyright (c) 2014 Anton Titov.
* Copyright (c) 2014 pCloud Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of pCloud Ltd nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL pCloud Ltd BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "pcompat.h"
#include "pfstasks.h"
#include "plibs.h"
#include "ptimer.h"
#include "pfsupload.h"
#include "psettings.h"
#include "pcache.h"
#include "pfolder.h"
#include "pfs.h"
#include "pcloudcrypto.h"
#include <string.h>
#include <stddef.h>
#include <stdio.h>
#define FOLDER_HASH 256
typedef struct {
psync_folderid_t folderid;
char name[];
} file_history_record;
static psync_tree *folders=PSYNC_TREE_EMPTY;
static uint64_t psync_local_taskid=UINT64_MAX;
psync_uint_t folder_hash(psync_fsfolderid_t folderid){
return ((uint64_t)folderid)%FOLDER_HASH;
}
psync_fstask_folder_t *psync_fstask_get_or_create_folder_tasks(psync_fsfolderid_t folderid){
psync_fstask_folder_t *folder;
psync_sql_lock();
folder=psync_fstask_get_or_create_folder_tasks_locked(folderid);
psync_sql_unlock();
return folder;
}
psync_fstask_folder_t *psync_fstask_get_folder_tasks(psync_fsfolderid_t folderid){
psync_fstask_folder_t *folder;
psync_sql_lock();
folder=psync_fstask_get_folder_tasks_locked(folderid);
psync_sql_unlock();
return folder;
}
void psync_fstask_release_folder_tasks(psync_fstask_folder_t *folder){
psync_sql_lock();
psync_fstask_release_folder_tasks_locked(folder);
psync_sql_unlock();
}
psync_fstask_folder_t *psync_fstask_get_ref_locked(psync_fstask_folder_t *folder){
folder->refcnt++;
return folder;
}
psync_fstask_folder_t *psync_fstask_get_or_create_folder_tasks_locked(psync_fsfolderid_t folderid){
psync_fstask_folder_t *folder;
psync_tree *tr;
int64_t d;
tr=folders;
d=-1;
while (tr){
folder=psync_tree_element(tr, psync_fstask_folder_t, tree);
d=folderid-folder->folderid;
if (d<0){
if (tr->left)
tr=tr->left;
else
break;
}
else if (d>0)
if (tr->right)
tr=tr->right;
else
break;
else{
folder->refcnt++;
return folder;
}
}
folder=psync_new(psync_fstask_folder_t);
memset(folder, 0, sizeof(psync_fstask_folder_t));
if (d<0)
psync_tree_add_before(&folders, tr, &folder->tree);
else
psync_tree_add_after(&folders, tr, &folder->tree);
folder->folderid=folderid;
folder->refcnt=1;
return folder;
}
psync_fstask_folder_t *psync_fstask_get_folder_tasks_locked(psync_fsfolderid_t folderid){
psync_fstask_folder_t *folder;
psync_tree *tr;
tr=folders;
while (tr){
folder=psync_tree_element(tr, psync_fstask_folder_t, tree);
if (folderid<folder->folderid)
tr=tr->left;
else if (folderid>folder->folderid)
tr=tr->right;
else{
folder->refcnt++;
return folder;
}
}
return NULL;
}
psync_fstask_folder_t *psync_fstask_get_folder_tasks_rdlocked(psync_fsfolderid_t folderid){
psync_fstask_folder_t *folder;
psync_tree *tr;
tr=folders;
while (tr){
folder=psync_tree_element(tr, psync_fstask_folder_t, tree);
if (folderid<folder->folderid)
tr=tr->left;
else if (folderid>folder->folderid)
tr=tr->right;
else
return folder;
}
return NULL;
}
void psync_fstask_release_folder_tasks_locked(psync_fstask_folder_t *folder){
#if IS_DEBUG
if ((!!folder->taskscnt)!=(folder->creats || folder->mkdirs || folder->rmdirs || folder->unlinks))
debug(D_ERROR, "taskcnt=%u, c=%p, m=%p, r=%p, u=%p", (unsigned)folder->taskscnt, folder->creats, folder->mkdirs, folder->rmdirs, folder->unlinks);
#endif
if (--folder->refcnt==0 && !folder->taskscnt){
debug(D_NOTICE, "releasing folder id %ld", (long int)folder->folderid);
psync_tree_del(&folders, &folder->tree);
psync_free(folder);
}
}
static psync_tree *psync_fstask_search_tree(psync_tree *tree, size_t nameoff, const char *name, uint64_t taskid, size_t taskidoff){
int c;
while (tree){
c=psync_filename_cmp(name, ((char *)tree)+nameoff);
if (c<0)
tree=tree->left;
else if (c>0)
tree=tree->right;
else
break;
}
if (!tree || !taskid || *((uint64_t *)(((char *)tree)+taskidoff))==taskid)
return tree;
else{
psync_tree *tn;
tn=psync_tree_get_prev(tree);
while (tn){
if (psync_filename_cmp(name, ((char *)tn)+nameoff))
break;
if (*((uint64_t *)(((char *)tn)+taskidoff))==taskid)
return tn;
tn=psync_tree_get_prev(tn);
}
tn=psync_tree_get_next(tree);
while (tn){
if (psync_filename_cmp(name, ((char *)tn)+nameoff))
break;
if (*((uint64_t *)(((char *)tn)+taskidoff))==taskid)
return tn;
tn=psync_tree_get_next(tn);
}
return NULL;
}
}
static psync_tree *psync_fstask_walk_tree(psync_tree *tree, uint64_t taskid, size_t taskidoff){
tree=psync_tree_get_first(tree);
while (tree){
if (*((uint64_t *)(((char *)tree)+taskidoff))==taskid)
return tree;
tree=psync_tree_get_next(tree);
}
return NULL;
}
static void psync_fstask_insert_into_tree(psync_tree **tree, size_t nameoff, psync_tree *element){
const char *name;
psync_tree *node;
int c;
if (!*tree){
psync_tree_add_after(tree, NULL, element);
return;
}
name=((char *)element)+nameoff;
node=*tree;
while (1){
c=psync_filename_cmp(name, ((char *)node)+nameoff);
if (c<0){
if (node->left)
node=node->left;
else{
psync_tree_add_before(tree, node, element);
return;
}
}
else{
if (c==0)
debug(D_WARNING, "duplicate entry %s, should not happen", name);
if (node->right)
node=node->right;
else{
psync_tree_add_after(tree, node, element);
return;
}
}
}
}
psync_fstask_mkdir_t *psync_fstask_find_mkdir(psync_fstask_folder_t *folder, const char *name, uint64_t taskid){
return psync_tree_element(
psync_fstask_search_tree(folder->mkdirs, offsetof(psync_fstask_mkdir_t, name), name, taskid, offsetof(psync_fstask_mkdir_t, taskid)),
psync_fstask_mkdir_t, tree);
}
psync_fstask_rmdir_t *psync_fstask_find_rmdir(psync_fstask_folder_t *folder, const char *name, uint64_t taskid){
return psync_tree_element(
psync_fstask_search_tree(folder->rmdirs, offsetof(psync_fstask_rmdir_t, name), name, taskid, offsetof(psync_fstask_rmdir_t, taskid)),
psync_fstask_rmdir_t, tree);
}
psync_fstask_creat_t *psync_fstask_find_creat(psync_fstask_folder_t *folder, const char *name, uint64_t taskid){
return psync_tree_element(
psync_fstask_search_tree(folder->creats, offsetof(psync_fstask_creat_t, name), name, taskid, offsetof(psync_fstask_creat_t, taskid)),
psync_fstask_creat_t, tree);
}
psync_fstask_unlink_t *psync_fstask_find_unlink(psync_fstask_folder_t *folder, const char *name, uint64_t taskid){
return psync_tree_element(
psync_fstask_search_tree(folder->unlinks, offsetof(psync_fstask_unlink_t, name), name, taskid, offsetof(psync_fstask_unlink_t, taskid)),
psync_fstask_unlink_t, tree);
}
psync_fstask_mkdir_t *psync_fstask_find_mkdir_by_folderid(psync_fstask_folder_t *folder, psync_fsfolderid_t folderid){
return psync_tree_element(
psync_fstask_walk_tree(folder->mkdirs, folderid, offsetof(psync_fstask_mkdir_t, folderid)),
psync_fstask_mkdir_t, tree);
}
psync_fstask_creat_t *psync_fstask_find_creat_by_fileid(psync_fstask_folder_t *folder, psync_fsfileid_t fileid){
return psync_tree_element(
psync_fstask_walk_tree(folder->creats, fileid, offsetof(psync_fstask_creat_t, fileid)),
psync_fstask_creat_t, tree);
}
static void psync_fstask_depend(uint64_t taskid, uint64_t dependontaskid){
psync_sql_res *res;
res=psync_sql_prep_statement("INSERT OR IGNORE INTO fstaskdepend (fstaskid, dependfstaskid) VALUES (?, ?)");
psync_sql_bind_uint(res, 1, taskid);
psync_sql_bind_uint(res, 2, dependontaskid);
psync_sql_run_free(res);
}
static uint32_t psync_fstask_depend_on_name(uint64_t taskid, psync_fsfolderid_t folderid, const char *name, size_t len){
psync_sql_res *res;
res=psync_sql_prep_statement("INSERT OR IGNORE INTO fstaskdepend (fstaskid, dependfstaskid) SELECT ?, id FROM fstask WHERE folderid=? AND text1=? AND id!=?");
psync_sql_bind_uint(res, 1, taskid);
psync_sql_bind_int(res, 2, folderid);
psync_sql_bind_lstring(res, 3, name, len);
psync_sql_bind_uint(res, 4, taskid);
psync_sql_run_free(res);
return psync_sql_affected_rows();
}
static uint32_t psync_fstask_depend_on_name2(uint64_t taskid, uint64_t taskid2,psync_fsfolderid_t folderid, const char *name, size_t len){
psync_sql_res *res;
res=psync_sql_prep_statement("INSERT OR IGNORE INTO fstaskdepend (fstaskid, dependfstaskid) SELECT ?, id FROM fstask WHERE folderid=? AND text1=? AND id NOT IN (?, ?)");
psync_sql_bind_uint(res, 1, taskid);
psync_sql_bind_int(res, 2, folderid);
psync_sql_bind_lstring(res, 3, name, len);
psync_sql_bind_uint(res, 4, taskid);
psync_sql_bind_uint(res, 5, taskid2);
psync_sql_run_free(res);
return psync_sql_affected_rows();
}
int psync_fstask_mkdir(psync_fsfolderid_t folderid, const char *name, uint32_t folderflags){
psync_sql_res *res;
psync_uint_row row;
psync_fstask_folder_t *folder;
psync_fstask_mkdir_t *task;
uint64_t taskid;
char *key;
size_t len, klen;
time_t ctime;
uint32_t depend;
folder=psync_fstask_get_or_create_folder_tasks_locked(folderid);
len=strlen(name);
if (folderid>=0){
res=psync_sql_query("SELECT id FROM folder WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
psync_sql_free_result(res);
if (row && !psync_fstask_find_rmdir(folder, name, 0)){
psync_fstask_release_folder_tasks_locked(folder);
return -PRINT_RETURN_CONST(EEXIST);
}
}
if ((task=psync_fstask_find_mkdir(folder, name, 0))){
depend=task->flags;
psync_fstask_release_folder_tasks_locked(folder);
if (depend&PSYNC_FOLDER_FLAG_INVISIBLE)
return -PRINT_RETURN_CONST(EACCES);
else
return -PRINT_RETURN_CONST(EEXIST);
}
ctime=psync_timer_time();
if (folderflags&PSYNC_FOLDER_FLAG_ENCRYPTED){
key=psync_cloud_crypto_get_new_encoded_key(PSYNC_CRYPTO_SYM_FLAG_ISDIR, &klen);
if (psync_crypto_is_error(key)){
psync_fstask_release_folder_tasks_locked(folder);
return -psync_fs_crypto_err_to_errno(psync_crypto_to_error(key));
}
}
else
key=NULL;
psync_sql_start_transaction();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, sfolderid, text1, text2, int1) VALUES ("NTO_STR(PSYNC_FS_TASK_MKDIR)", 0, ?, ?, ?, ?, ?)");
psync_sql_bind_int(res, 1, folderid);
psync_sql_bind_int(res, 2, folderid);
psync_sql_bind_lstring(res, 3, name, len);
if (key)
psync_sql_bind_lstring(res, 4, key, klen);
else
psync_sql_bind_null(res, 4);
psync_sql_bind_uint(res, 5, ctime);
psync_sql_run_free(res);
taskid=psync_sql_insertid();
if (folderid<0){
psync_fstask_depend(taskid, -folderid);
depend=1;
}
else
depend=0;
depend+=psync_fstask_depend_on_name(taskid, folderid, name, len);
if (unlikely_log(psync_sql_commit_transaction())){
psync_fstask_release_folder_tasks_locked(folder);
return -EIO;
}
len++;
task=(psync_fstask_mkdir_t *)psync_malloc(offsetof(psync_fstask_mkdir_t, name)+len);
task->taskid=taskid;
task->ctime=task->mtime=ctime;
task->folderid=-(psync_fsfolderid_t)taskid;
task->subdircnt=0;
task->flags=folderflags&PSYNC_FOLDER_FLAG_ENCRYPTED;
memcpy(task->name, name, len);
psync_fstask_insert_into_tree(&folder->mkdirs, offsetof(psync_fstask_mkdir_t, name), &task->tree);
folder->taskscnt++;
psync_fstask_release_folder_tasks_locked(folder);
if (!depend)
psync_fsupload_wake();
return 0;
}
int psync_fstask_can_rmdir(psync_fsfolderid_t folderid, const char *name){
psync_sql_res *res;
psync_uint_row row;
psync_str_row srow;
psync_fstask_folder_t *folder, *cfolder;
psync_fstask_mkdir_t *mk;
psync_fsfolderid_t cfolderid;
size_t len;
len=strlen(name);
folder=psync_fstask_get_folder_tasks_locked(folderid);
if (folder && (mk=psync_fstask_find_mkdir(folder, name, 0)))
cfolderid=mk->folderid;
else{
res=psync_sql_query("SELECT id FROM folder WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
if (!row || (folder && psync_fstask_find_rmdir(folder, name, 0))){
psync_sql_free_result(res);
psync_fstask_release_folder_tasks_locked(folder);
return -ENOENT;
}
cfolderid=row[0];
psync_sql_free_result(res);
}
cfolder=psync_fstask_get_folder_tasks_locked(cfolderid);
if (cfolder && (cfolder->creats || cfolder->mkdirs)){
psync_fstask_release_folder_tasks_locked(cfolder);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
if (cfolderid>=0){
res=psync_sql_query("SELECT name FROM file WHERE parentfolderid=?");
psync_sql_bind_uint(res, 1, cfolderid);
while ((srow=psync_sql_fetch_rowstr(res)))
if (!cfolder || !psync_fstask_find_unlink(cfolder, srow[0], 0)){
psync_sql_free_result(res);
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
psync_sql_free_result(res);
res=psync_sql_query("SELECT name FROM folder WHERE parentfolderid=?");
psync_sql_bind_uint(res, 1, cfolderid);
while ((srow=psync_sql_fetch_rowstr(res)))
if (!cfolder || !psync_fstask_find_rmdir(cfolder, srow[0], 0)){
psync_sql_free_result(res);
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
psync_sql_free_result(res);
}
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
return 0;
}
int psync_fstask_rmdir(psync_fsfolderid_t folderid, const char *name){
psync_sql_res *res;
psync_uint_row row;
psync_str_row srow;
psync_fstask_folder_t *folder, *cfolder;
psync_fstask_rmdir_t *task;
psync_fstask_mkdir_t *mk;
uint64_t depend, taskid;
psync_fsfolderid_t cfolderid;
size_t len;
len=strlen(name);
folder=psync_fstask_get_or_create_folder_tasks_locked(folderid);
mk=psync_fstask_find_mkdir(folder, name, 0);
if (mk==NULL){
res=psync_sql_query("SELECT id FROM folder WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
if (!row || psync_fstask_find_rmdir(folder, name, 0)){
psync_sql_free_result(res);
psync_fstask_release_folder_tasks_locked(folder);
return -ENOENT;
}
cfolderid=row[0];
psync_sql_free_result(res);
depend=0;
}
else{
depend=mk->taskid;
cfolderid=mk->folderid;
psync_tree_del(&folder->mkdirs, &mk->tree);
psync_free(mk);
folder->taskscnt--;
}
cfolder=psync_fstask_get_folder_tasks_locked(cfolderid);
if (cfolder && (cfolder->creats || cfolder->mkdirs)){
psync_fstask_release_folder_tasks_locked(cfolder);
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
if (cfolderid>=0){
res=psync_sql_query("SELECT name FROM file WHERE parentfolderid=?");
psync_sql_bind_uint(res, 1, cfolderid);
while ((srow=psync_sql_fetch_rowstr(res)))
if (!cfolder || !psync_fstask_find_unlink(cfolder, srow[0], 0)){
psync_sql_free_result(res);
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
psync_sql_free_result(res);
res=psync_sql_query("SELECT name FROM folder WHERE parentfolderid=?");
psync_sql_bind_uint(res, 1, cfolderid);
while ((srow=psync_sql_fetch_rowstr(res)))
if (!cfolder || !psync_fstask_find_rmdir(cfolder, srow[0], 0)){
psync_sql_free_result(res);
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
psync_fstask_release_folder_tasks_locked(folder);
debug(D_NOTICE, "returning ENOTEMPTY for folder name %s", name);
return -ENOTEMPTY;
}
psync_sql_free_result(res);
}
if (cfolder)
psync_fstask_release_folder_tasks_locked(cfolder);
psync_sql_start_transaction();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, sfolderid, text1) VALUES ("NTO_STR(PSYNC_FS_TASK_RMDIR)", 0, ?, ?, ?)");
psync_sql_bind_int(res, 1, folderid);
psync_sql_bind_int(res, 2, cfolderid);
psync_sql_bind_lstring(res, 3, name, len);
psync_sql_run_free(res);
taskid=psync_sql_insertid();
if (depend)
psync_fstask_depend(taskid, depend);
res=psync_sql_query("SELECT id FROM fstask WHERE folderid=?");
psync_sql_bind_int(res, 1, cfolderid);
while ((row=psync_sql_fetch_rowint(res))){
psync_fstask_depend(taskid, row[0]);
depend++;
}
psync_sql_free_result(res);
psync_fstask_depend_on_name(taskid, folderid, name, len);
if (unlikely_log(psync_sql_commit_transaction())){
psync_fstask_release_folder_tasks_locked(folder);
return -EIO;
}
len++;
task=(psync_fstask_rmdir_t *)psync_malloc(offsetof(psync_fstask_rmdir_t, name)+len);
task->taskid=taskid;
task->folderid=cfolderid;
memcpy(task->name, name, len);
psync_fstask_insert_into_tree(&folder->rmdirs, offsetof(psync_fstask_rmdir_t, name), &task->tree);
folder->taskscnt++;
psync_fstask_release_folder_tasks_locked(folder);
if (depend==0)
psync_fsupload_wake();
return 0;
}
psync_fstask_creat_t *psync_fstask_add_creat(psync_fstask_folder_t *folder, const char *name, const char *encsymkey, size_t encsymkeylen){
psync_sql_res *res;
psync_fstask_creat_t *task;
psync_fstask_unlink_t *un;
uint64_t taskid;
size_t len;
len=strlen(name);
psync_sql_start_transaction();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, sfolderid, text1, text2, int1) "
"VALUES ("NTO_STR(PSYNC_FS_TASK_CREAT)", 1, ?, 0, ?, ?, ?, 0)");
psync_sql_bind_int(res, 1, folder->folderid);
psync_sql_bind_int(res, 2, folder->folderid);
psync_sql_bind_lstring(res, 3, name, len);
if (encsymkey)
psync_sql_bind_lstring(res, 4, encsymkey, encsymkeylen);
else
psync_sql_bind_null(res, 4);
psync_sql_run_free(res);
taskid=psync_sql_insertid();
if (folder->folderid<0)
psync_fstask_depend(taskid, -folder->folderid);
psync_fstask_depend_on_name(taskid, folder->folderid, name, len);
if (unlikely_log(psync_sql_commit_transaction()))
return NULL;
len++;
un=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+len);
un->taskid=taskid;
un->fileid=-(psync_fsfileid_t)taskid;
memcpy(un->name, name, len);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &un->tree);
task=(psync_fstask_creat_t *)psync_malloc(offsetof(psync_fstask_creat_t, name)+len);
task->taskid=taskid;
task->fileid=-(psync_fsfileid_t)taskid;
memcpy(task->name, name, len);
psync_fstask_insert_into_tree(&folder->creats, offsetof(psync_fstask_creat_t, name), &task->tree);
folder->taskscnt+=2;
return task;
}
void psync_fstask_inject_creat(psync_fstask_folder_t *folder, psync_fstask_creat_t *cr){
psync_fstask_insert_into_tree(&folder->creats, offsetof(psync_fstask_creat_t, name), &cr->tree);
folder->taskscnt++;
}
void psync_fstask_inject_unlink(psync_fstask_folder_t *folder, psync_fstask_unlink_t *un){
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_creat_t, name), &un->tree);
folder->taskscnt++;
}
psync_fstask_creat_t *psync_fstask_add_modified_file(psync_fstask_folder_t *folder, const char *name, psync_fsfileid_t fileid,
uint64_t hash, const char *encsymkey, size_t encsymkeylen){
psync_sql_res *res;
psync_fstask_unlink_t *un;
psync_fstask_creat_t *task;
uint64_t taskid;
size_t len;
len=strlen(name);
psync_sql_start_transaction();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, sfolderid, text1, text2, int1, int2) "
"VALUES ("NTO_STR(PSYNC_FS_TASK_MODIFY)", 1, ?, ?, ?, ?, ?, 0, ?)");
psync_sql_bind_int(res, 1, folder->folderid);
psync_sql_bind_int(res, 2, fileid);
psync_sql_bind_int(res, 3, folder->folderid);
psync_sql_bind_lstring(res, 4, name, len);
if (encsymkey)
psync_sql_bind_lstring(res, 5, encsymkey, encsymkeylen);
else
psync_sql_bind_null(res, 5);
psync_sql_bind_uint(res, 6, hash);
psync_sql_run_free(res);
taskid=psync_sql_insertid();
if (folder->folderid<0)
psync_fstask_depend(taskid, -folder->folderid);
psync_fstask_depend_on_name(taskid, folder->folderid, name, len);
task=psync_fstask_find_creat(folder, name, 0);
if (task){
psync_fstask_depend(taskid, task->taskid);
psync_tree_del(&folder->creats, &task->tree);
psync_free(task);
folder->taskscnt--;
}
if (unlikely_log(psync_sql_commit_transaction()))
return NULL;
len++;
un=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+len);
un->taskid=taskid;
un->fileid=fileid;
memcpy(un->name, name, len);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &un->tree);
task=(psync_fstask_creat_t *)psync_malloc(offsetof(psync_fstask_creat_t, name)+len);
task->taskid=taskid;
task->fileid=-(psync_fsfileid_t)taskid;
memcpy(task->name, name, len);
psync_fstask_insert_into_tree(&folder->creats, offsetof(psync_fstask_creat_t, name), &task->tree);
folder->taskscnt+=2;
return task;
}
int psync_fstask_add_local_creat_static(psync_fsfolderid_t folderid, const char *name, const void *data, size_t datalen){
psync_fstask_folder_t *folder;
psync_fstask_creat_t *cr;
psync_fstask_unlink_t *un;
psync_fstask_local_creat_t *lc;
psync_sql_res *res;
psync_uint_row row;
size_t len, addlen;
int ret;
ret=-1;
len=strlen(name);
psync_sql_lock();
folder=psync_fstask_get_or_create_folder_tasks_locked(folderid);
cr=psync_fstask_find_creat(folder, name, 0);
if (cr){
debug(D_NOTICE, "not adding file %s to folderid %ld as creat already exists", name, (long)folderid);
goto ex;
}
if (folderid>=0 && !psync_fstask_find_unlink(folder, name, 0)){
res=psync_sql_query("SELECT id FROM file WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
psync_sql_free_result(res);
if (row){
debug(D_NOTICE, "not adding file %s to folderid %ld as it already exists in the database", name, (long)folderid);
goto ex;
}
}
debug(D_NOTICE, "adding file %s to folderid %ld, datalen %lu", name, (long)folderid, (unsigned long)datalen);
len++;
un=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+len);
un->taskid=psync_local_taskid;
un->fileid=0;
memcpy(un->name, name, len);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &un->tree);
addlen=psync_fstask_creat_local_offset(len-1);
cr=(psync_fstask_creat_t *)psync_malloc(addlen+sizeof(psync_fstask_local_creat_t));
cr->taskid=psync_local_taskid;
cr->fileid=0;
memcpy(cr->name, name, len);
lc=(psync_fstask_local_creat_t *)(((char *)cr)+addlen);
lc->data=data;
lc->datalen=datalen;
lc->ctime=psync_timer_time();
psync_fstask_insert_into_tree(&folder->creats, offsetof(psync_fstask_creat_t, name), &cr->tree);
psync_local_taskid--;
folder->taskscnt+=2;
ret=0;
ex:
psync_fstask_release_folder_tasks_locked(folder);
psync_sql_unlock();
return ret;
}
static psync_fsfileid_t get_file_at_old_location(psync_fsfileid_t fileid){
file_history_record *rec;
psync_fstask_folder_t *folder;
psync_fstask_creat_t *cr;
psync_sql_res *res;
psync_uint_row row;
psync_fsfileid_t ret;
char key[16];
if (fileid<0)
return 0;
psync_get_string_id(key, "HLOC", fileid);
rec=(file_history_record *)psync_cache_get(key);
if (!rec)
return 0;
folder=psync_fstask_get_folder_tasks_locked(rec->folderid);
if (folder){
cr=psync_fstask_find_creat(folder, rec->name, 0);
if (cr){
psync_free(rec);
psync_fstask_release_folder_tasks_locked(folder);
return cr->fileid;
}
if (psync_fstask_find_unlink(folder, rec->name, 0)){
psync_free(rec);
psync_fstask_release_folder_tasks_locked(folder);
return 0;
}
psync_fstask_release_folder_tasks_locked(folder);
}
res=psync_sql_query("SELECT id FROM file WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, rec->folderid);
psync_sql_bind_string(res, 2, rec->name);
if ((row=psync_sql_fetch_rowint(res)))
ret=row[0];
else
ret=0;
psync_sql_free_result(res);
psync_free(rec);
return ret;
}
void psync_fstask_stop_and_delete_file(psync_fsfileid_t fileid){
psync_sql_res *res;
debug(D_NOTICE, "trying to stop upload of task %lu", (unsigned long)-fileid);
if (psync_fsupload_in_current_small_uploads_batch_locked(-fileid)){
debug(D_NOTICE, "file is in current small uploads batch");
return;
}
psync_fsupload_stop_upload_locked(-fileid);
res=psync_sql_prep_statement("UPDATE fstask SET status=11 WHERE id=?");
psync_sql_bind_uint(res, 1, -fileid);
psync_sql_run_free(res);
res=psync_sql_prep_statement("UPDATE fstask SET status=11 WHERE fileid=? AND status!=10");
psync_sql_bind_int(res, 1, fileid);
psync_sql_run_free(res);
psync_fs_mark_openfile_deleted(-fileid);
}
int psync_fstask_can_unlink(psync_fsfolderid_t folderid, const char *name){
psync_sql_res *res;
psync_uint_row row;
psync_fstask_folder_t *folder;
psync_fstask_creat_t *cr;
size_t len;
len=strlen(name);
folder=psync_fstask_get_folder_tasks_locked(folderid);
if (folder && (cr=psync_fstask_find_creat(folder, name, 0)))
psync_fstask_release_folder_tasks_locked(folder);
else{
res=psync_sql_query("SELECT id FROM file WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
if (!row || (folder && psync_fstask_find_unlink(folder, name, 0))){
psync_sql_free_result(res);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
return -ENOENT;
}
psync_sql_free_result(res);
if (folder)
psync_fstask_release_folder_tasks_locked(folder);
}
return 0;
}
int psync_fstask_unlink(psync_fsfolderid_t folderid, const char *name){
psync_sql_res *res;
psync_uint_row row;
psync_fstask_folder_t *folder;
psync_fstask_unlink_t *task;
psync_fstask_creat_t *cr;
uint64_t depend, taskid;
psync_fsfileid_t fileid, revoffileid;
size_t len;
len=strlen(name);
folder=psync_fstask_get_or_create_folder_tasks_locked(folderid);
cr=psync_fstask_find_creat(folder, name, 0);
if (cr==NULL){
res=psync_sql_query("SELECT id FROM file WHERE parentfolderid=? AND name=?");
psync_sql_bind_uint(res, 1, folderid);
psync_sql_bind_lstring(res, 2, name, len);
row=psync_sql_fetch_rowint(res);
if (!row || psync_fstask_find_unlink(folder, name, 0)){
psync_sql_free_result(res);
psync_fstask_release_folder_tasks_locked(folder);
return -ENOENT;
}
fileid=row[0];
psync_sql_free_result(res);
depend=0;
}
else{
if (unlikely(cr->fileid==0)){
task=psync_fstask_find_unlink(folder, cr->name, cr->taskid);
if (likely_log(task)){
psync_tree_del(&folder->unlinks, &task->tree);
folder->taskscnt--;
psync_free(task);
}
psync_tree_del(&folder->creats, &cr->tree);
psync_free(cr);
folder->taskscnt--;
psync_fstask_release_folder_tasks_locked(folder);
return 0;
}
depend=cr->taskid;
fileid=cr->fileid;
psync_tree_del(&folder->creats, &cr->tree);
psync_free(cr);
folder->taskscnt--;
}
revoffileid=get_file_at_old_location(fileid);
psync_sql_start_transaction();
if (fileid<0)
psync_fstask_stop_and_delete_file(fileid);
if (revoffileid){
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, int1, text1) VALUES ("NTO_STR(PSYNC_FS_TASK_UN_SET_REV)", 0, ?, ?, ?, ?)");
psync_sql_bind_int(res, 1, folderid);
psync_sql_bind_int(res, 2, revoffileid);
psync_sql_bind_int(res, 3, fileid);
psync_sql_bind_lstring(res, 4, name, len);
psync_sql_run_free(res);
}
else{
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, text1) VALUES ("NTO_STR(PSYNC_FS_TASK_UNLINK)", 0, ?, ?, ?)");
psync_sql_bind_int(res, 1, folderid);
psync_sql_bind_int(res, 2, fileid);
psync_sql_bind_lstring(res, 3, name, len);
psync_sql_run_free(res);
}
taskid=psync_sql_insertid();
if (depend)
psync_fstask_depend(taskid, depend);
if (revoffileid<0)
psync_fstask_depend(taskid, -revoffileid);
if (fileid<0 && -fileid!=depend)
psync_fstask_depend(taskid, -fileid);
psync_fstask_depend_on_name(taskid, folderid, name, len);
if (unlikely_log(psync_sql_commit_transaction())){
psync_fstask_release_folder_tasks_locked(folder);
return -EIO;
}
len++;
task=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+len);
task->taskid=taskid;
task->fileid=fileid;
memcpy(task->name, name, len);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &task->tree);
folder->taskscnt++;
psync_fstask_release_folder_tasks_locked(folder);
if (depend==0 || fileid<0)
psync_fsupload_wake();
return 0;
}
static void add_history_record(psync_fileid_t fileid, psync_folderid_t folderid, const char *name){
file_history_record *rec;
size_t len;
char key[16];
psync_get_string_id(key, "HLOC", fileid);
while ((rec=(file_history_record *)psync_cache_get(key)))
psync_free(rec);
len=strlen(name)+1;
rec=(file_history_record *)psync_malloc(offsetof(file_history_record, name)+len);
rec->folderid=folderid;
memcpy(rec->name, name, len);
psync_cache_add(key, rec, PSYNC_FS_FILE_LOC_HIST_SEC, psync_free, 1);
}
int psync_fstask_rename_file(psync_fsfileid_t fileid, psync_fsfolderid_t parentfolderid, const char *name, psync_fsfolderid_t to_folderid, const char *new_name){
psync_sql_res *res;
psync_fstask_folder_t *folder;
psync_fstask_creat_t *cr;
psync_fstask_unlink_t *rm;
size_t nlen, nnlen;
uint64_t ftaskid, ttaskid;
nlen=strlen(name);
if (new_name)
nnlen=strlen(new_name);
else{
new_name=name;
nnlen=nlen;
}
debug(D_NOTICE, "renaming file %ld from %ld/%s to %ld/%s", (long)fileid, (long)parentfolderid, name, (long)to_folderid, new_name);
psync_sql_start_transaction();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, text1) VALUES ("NTO_STR(PSYNC_FS_TASK_RENFILE_FROM)", 10, ?, ?, ?)");
psync_sql_bind_int(res, 1, parentfolderid);
psync_sql_bind_int(res, 2, fileid);
psync_sql_bind_lstring(res, 3, name, nlen);
psync_sql_run_free(res);
ftaskid=psync_sql_insertid();
res=psync_sql_prep_statement("INSERT INTO fstask (type, status, folderid, fileid, text1, int1) VALUES ("NTO_STR(PSYNC_FS_TASK_RENFILE_TO)", 0, ?, ?, ?, ?)");
psync_sql_bind_int(res, 1, to_folderid);
psync_sql_bind_int(res, 2, fileid);
psync_sql_bind_lstring(res, 3, new_name, nnlen);
psync_sql_bind_uint(res, 4, ftaskid);
psync_sql_run_free(res);
ttaskid=psync_sql_insertid();
if (fileid<0){
res=psync_sql_prep_statement("UPDATE fstask SET sfolderid=? WHERE id=?");
psync_sql_bind_int(res, 1, to_folderid);
psync_sql_bind_uint(res, 2, -fileid);
psync_sql_run_free(res);
psync_fstask_depend(ttaskid, -fileid);
}
if (parentfolderid<0)
psync_fstask_depend(ttaskid, -parentfolderid);
if (to_folderid<0 && to_folderid!=parentfolderid)
psync_fstask_depend(ttaskid, -to_folderid);
psync_fstask_depend_on_name2(ttaskid, ftaskid, parentfolderid, name, nlen);
psync_fstask_depend_on_name(ttaskid, to_folderid, new_name, nnlen);
folder=psync_fstask_get_or_create_folder_tasks_locked(parentfolderid);
cr=psync_fstask_find_creat(folder, name, 0);
if (cr)
psync_fstask_depend(ttaskid, cr->taskid);
if (unlikely_log(psync_sql_commit_transaction())){
psync_fstask_release_folder_tasks_locked(folder);
return -EIO;
}
if (cr){
psync_tree_del(&folder->creats, &cr->tree);
psync_free(cr);
folder->taskscnt--;
}
psync_fs_rename_openfile_locked(fileid, to_folderid, new_name);
nlen++;
rm=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+nlen);
rm->taskid=ftaskid;
rm->fileid=fileid;
memcpy(rm->name, name, nlen);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &rm->tree);
folder->taskscnt++;
psync_fstask_release_folder_tasks_locked(folder);
folder=psync_fstask_get_or_create_folder_tasks_locked(to_folderid);
nnlen++;
cr=psync_fstask_find_creat(folder, new_name, 0);
if (cr){
debug(D_NOTICE, "renaming over creat of file %s(%ld) in folder %lu", new_name, (long)cr->fileid, (unsigned long)to_folderid);
if (cr->fileid<0)
psync_fstask_stop_and_delete_file(cr->fileid);
psync_tree_del(&folder->creats, &cr->tree);
psync_free(cr);
folder->taskscnt--;
}
rm=(psync_fstask_unlink_t *)psync_malloc(offsetof(psync_fstask_unlink_t, name)+nnlen);
rm->taskid=ttaskid;
rm->fileid=fileid;
memcpy(rm->name, new_name, nnlen);
psync_fstask_insert_into_tree(&folder->unlinks, offsetof(psync_fstask_unlink_t, name), &rm->tree);
cr=(psync_fstask_creat_t *)psync_malloc(offsetof(psync_fstask_creat_t, name)+nnlen);
cr->taskid=ttaskid;
cr->fileid=fileid;
memcpy(cr->name, new_name, nnlen);
psync_fstask_insert_into_tree(&folder->creats, offsetof(psync_fstask_creat_t, name), &cr->tree);
folder->taskscnt+=2;
psync_fstask_release_folder_tasks_locked(folder);
psync_fsupload_wake();
if (fileid>0 && parentfolderid>=0)
add_history_record(fileid, parentfolderid, name);
return 0;
}
static void fill_mkdir_data(psync_fsfolderid_t folderid, psync_fstask_mkdir_t *mkdir){
psync_sql_res *res;
psync_uint_row row;