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nextcloud-desktop/src/csync_statedb.c
Olivier Goffart 835813a86f Fix the tests after merge
2013-08-18 20:13:27 +02:00

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/*
* libcsync -- a library to sync a directory with another
*
* Copyright (c) 2008-2013 by Andreas Schneider <asn@cryptomilk.org>
* Copyright (c) 2012-2013 by Klaas Freitag <freitag@owncloud.com>wie
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <sqlite3.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "c_lib.h"
#include "csync_private.h"
#include "csync_statedb.h"
#include "csync_util.h"
#include "csync_misc.h"
#include "c_string.h"
#include "c_jhash.h"
#include "csync_time.h"
#define CSYNC_LOG_CATEGORY_NAME "csync.statedb"
#include "csync_log.h"
#include "csync_rename.h"
#define BUF_SIZE 16
#define HASH_QUERY "SELECT * FROM metadata WHERE phash=?1"
static sqlite3_stmt* _by_hash_stmt = NULL;
void csync_set_statedb_exists(CSYNC *ctx, int val) {
ctx->statedb.exists = val;
}
int csync_get_statedb_exists(CSYNC *ctx) {
return ctx->statedb.exists;
}
/* Set the hide attribute in win32. That makes it invisible in normal explorers */
static void _csync_win32_hide_file( const char *file ) {
#ifdef _WIN32
mbchar_t *fileName;
DWORD dwAttrs;
if( !file ) return;
fileName = c_utf8_to_locale( file );
dwAttrs = GetFileAttributesW(fileName);
if (dwAttrs==INVALID_FILE_ATTRIBUTES) return;
if (!(dwAttrs & FILE_ATTRIBUTE_HIDDEN)) {
SetFileAttributesW(fileName, dwAttrs | FILE_ATTRIBUTE_HIDDEN );
}
c_free_locale_string(fileName);
#else
(void) file;
#endif
}
static int _csync_check_db_integrity(sqlite3 *db) {
c_strlist_t *result = NULL;
int rc = -1;
result = csync_statedb_query(db, "PRAGMA quick_check;");
if (result != NULL) {
/* There is a result */
if (result->count > 0) {
if (c_streq(result->vector[0], "ok")) {
rc = 0;
}
}
c_strlist_destroy(result);
}
return rc;
}
static int _csync_statedb_check(const char *statedb) {
int fd = -1, rc;
ssize_t r;
char buf[BUF_SIZE] = {0};
sqlite3 *db = NULL;
struct stat sb;
mbchar_t *wstatedb = c_utf8_to_locale(statedb);
if (wstatedb == NULL) {
return -1;
}
/* check db version */
#ifdef _WIN32
_fmode = _O_BINARY;
#endif
fd = _topen(wstatedb, O_RDONLY);
if (fd >= 0) {
/* Check size. Size of zero is a valid database actually. */
rc = _tfstat(fd, &sb);
if (rc == 0) {
if (sb.st_size == 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Database size is zero byte!");
close(fd);
} else {
r = read(fd, (void *) buf, sizeof(buf) - 1);
close(fd);
if (r >= 0) {
buf[BUF_SIZE - 1] = '\0';
if (c_streq(buf, "SQLite format 3")) {
if (sqlite3_open(statedb, &db ) == SQLITE_OK) {
rc = _csync_check_db_integrity(db);
if( sqlite3_close(db) != 0 ) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "WARN: sqlite3_close error!");
}
if( rc >= 0 ) {
/* everything is fine */
c_free_locale_string(wstatedb);
return 0;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Integrity check failed!");
} else {
/* resources need to be freed even when open failed */
sqlite3_close(db);
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "database corrupted, removing!");
}
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "sqlite version mismatch");
}
}
}
}
/* if it comes here, the database is broken and should be recreated. */
_tunlink(wstatedb);
}
c_free_locale_string(wstatedb);
/* create database */
rc = sqlite3_open(statedb, &db);
if (rc == SQLITE_OK) {
sqlite3_close(db);
_csync_win32_hide_file(statedb);
return 1;
}
sqlite3_close(db);
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "sqlite3_open failed: %s %s", sqlite3_errmsg(db), statedb);
return -1;
}
static int _csync_statedb_is_empty(sqlite3 *db) {
c_strlist_t *result = NULL;
int rc = 0;
result = csync_statedb_query(db, "SELECT COUNT(phash) FROM metadata LIMIT 1 OFFSET 0;");
if (result == NULL) {
rc = 1;
}
c_strlist_destroy(result);
return rc;
}
int csync_statedb_load(CSYNC *ctx, const char *statedb, sqlite3 **pdb) {
int rc = -1;
int check_rc = -1;
c_strlist_t *result = NULL;
char *statedb_tmp = NULL;
sqlite3 *db = NULL;
/* csync_statedb_check tries to open the statedb and creates it in case
* its not there.
*/
check_rc = _csync_statedb_check(statedb);
if (check_rc < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "ERR: checking csync database failed - bail out.");
rc = -1;
goto out;
}
/*
* We want a two phase commit for the jounal, so we create a temporary copy
* of the database.
* The intention is that if something goes wrong we will not loose the
* statedb.
*/
rc = asprintf(&statedb_tmp, "%s.ctmp", statedb);
if (rc < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "ERR: could not create statedb name - bail out.");
rc = -1;
goto out;
}
if (c_copy(statedb, statedb_tmp, 0644) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "ERR: Failed to copy statedb -> statedb_tmp - bail out.");
rc = -1;
goto out;
}
_csync_win32_hide_file( statedb_tmp );
/* Open or create the temporary database */
if (sqlite3_open(statedb_tmp, &db) != SQLITE_OK) {
const char *errmsg= sqlite3_errmsg(ctx->statedb.db);
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "ERR: Failed to sqlite3 open statedb - bail out: %s.",
errmsg ? errmsg : "<no sqlite3 errormsg>");
rc = -1;
goto out;
}
SAFE_FREE(statedb_tmp);
/* If check_rc == 1 the database is new and empty as a result. */
if ((check_rc == 1) || _csync_statedb_is_empty(db)) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "statedb doesn't exist");
csync_set_statedb_exists(ctx, 0);
} else {
csync_set_statedb_exists(ctx, 1);
}
/* optimization for speeding up SQLite */
result = csync_statedb_query(db, "PRAGMA synchronous = FULL;");
c_strlist_destroy(result);
result = csync_statedb_query(db, "PRAGMA case_sensitive_like = ON;");
c_strlist_destroy(result);
*pdb = db;
return 0;
out:
sqlite3_close(db);
SAFE_FREE(statedb_tmp);
return rc;
}
int csync_statedb_write(CSYNC *ctx, sqlite3 *db)
{
bool recreate_db = false;
struct timespec start, finish;
int rc;
csync_gettime(&start);
/* drop tables */
if (csync_statedb_drop_tables(db) < 0) {
recreate_db = true;
}
csync_gettime(&finish);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"## DROPPING tables took %.2f seconds",
c_secdiff(finish, start));
/* create tables */
csync_gettime(&start);
if (! recreate_db) {
if (csync_statedb_create_tables(db) < 0) {
recreate_db = true;
}
}
if (recreate_db) {
char *statedb_tmp;
mbchar_t *wstatedb_tmp = NULL;
if (asprintf(&statedb_tmp, "%s.ctmp", ctx->statedb.file) < 0) {
return -1;
}
/* close the temporary database */
rc = sqlite3_close(db);
if( rc == SQLITE_BUSY ) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_NOTICE, "WARN: sqlite3_close got busy!");
}
/* remove a possible corrupted file if it exists */
wstatedb_tmp = c_utf8_to_locale(statedb_tmp);
_tunlink(wstatedb_tmp);
c_free_locale_string(wstatedb_tmp);
rc = sqlite3_open(statedb_tmp, &ctx->statedb.db);
SAFE_FREE(statedb_tmp);
if (rc != SQLITE_OK) {
return -1;
}
/* create tables */
if (csync_statedb_create_tables(db) < 0) {
return -1;
}
}
csync_gettime(&finish);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"## CREATE tables took %.2f seconds",
c_secdiff(finish, start));
/* insert metadata */
csync_gettime(&start);
rc = csync_statedb_insert_metadata(ctx, db);
if (rc < 0) {
return -1;
}
csync_gettime(&finish);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"## INSERT took %.2f seconds",
c_secdiff(finish, start));
/* progress info */
if (csync_statedb_write_progressinfo(ctx, ctx->progress_info) < 0) {
return -1;
}
return 0;
}
int csync_statedb_close(const char *statedb, sqlite3 *db, int jwritten) {
char *statedb_tmp = NULL;
mbchar_t* wstatedb_tmp = NULL;
int rc = 0;
mbchar_t *mb_statedb = NULL;
/* deallocate query resources */
rc = sqlite3_finalize(_by_hash_stmt);
_by_hash_stmt = NULL;
/* close the temporary database */
sqlite3_close(db);
if (asprintf(&statedb_tmp, "%s.ctmp", statedb) < 0) {
return -1;
}
/* If we successfully synchronized, overwrite the original statedb */
/*
* Check the integrity of the tmp db. If ok, overwrite the old database with
* the tmp db.
*/
if (jwritten) {
/* statedb check returns either
* 0 : database exists and is fine
* 1 : new database was set up
* -1 : error.
*/
if (_csync_statedb_check(statedb_tmp) >= 0) {
/* New statedb is valid. */
mb_statedb = c_utf8_to_locale(statedb);
/* Move the tmp-db to the real one. */
if (c_rename(statedb_tmp, statedb) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"Renaming tmp db to original db failed. (errno=%d)", errno);
rc = -1;
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"Successfully moved tmp db to original db.");
}
} else {
mb_statedb = c_utf8_to_locale(statedb_tmp);
_tunlink(mb_statedb);
/* new statedb_tmp is not integer. */
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, " ## csync tmp statedb corrupt. Original one is not replaced. ");
rc = -1;
}
c_free_locale_string(mb_statedb);
}
wstatedb_tmp = c_utf8_to_locale(statedb_tmp);
if (wstatedb_tmp) {
_tunlink(wstatedb_tmp);
c_free_locale_string(wstatedb_tmp);
}
SAFE_FREE(statedb_tmp);
return rc;
}
int csync_statedb_create_tables(sqlite3 *db) {
c_strlist_t *result = NULL;
int rc;
char *stmt;
/*
* Create temorary table to work on, this speeds up the
* creation of the statedb if we later just rename it to its
* final name metadata
*/
result = csync_statedb_query(db,
"CREATE TABLE IF NOT EXISTS metadata_temp("
"phash INTEGER(8),"
"pathlen INTEGER,"
"path VARCHAR(4096),"
"inode INTEGER,"
"uid INTEGER,"
"gid INTEGER,"
"mode INTEGER,"
"modtime INTEGER(8),"
"type INTEGER,"
"md5 VARCHAR(32),"
"PRIMARY KEY(phash)"
");"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
/*
* Create the 'real' table in case it does not exist. This is important
* for first time sync. Otherwise other functions that query metadata
* table whine about the table not existing.
*/
result = csync_statedb_query(db,
"CREATE TABLE IF NOT EXISTS metadata("
"phash INTEGER(8),"
"pathlen INTEGER,"
"path VARCHAR(4096),"
"inode INTEGER,"
"uid INTEGER,"
"gid INTEGER,"
"mode INTEGER,"
"modtime INTEGER(8),"
"type INTEGER,"
"md5 VARCHAR(32),"
"PRIMARY KEY(phash)"
");"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"CREATE TABLE IF NOT EXISTS version("
"major INTEGER(8),"
"minor INTEGER(8),"
"patch INTEGER(8),"
"custom VARCHAR(256));" );
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"CREATE TABLE IF NOT EXISTS progress("
"phash INTEGER(8),"
"modtime INTEGER(8),"
"md5 VARCHAR(32),"
"chunk INTEGER(4),"
"transferid INTEGER(4),"
"error_count INTEGER(8),"
"tmpfile VARCHAR(4096),"
"error_string VARCHAR(4096),"
"PRIMARY KEY(phash)"
");"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
/* write the version table. */
stmt = sqlite3_mprintf( "INSERT INTO version (major, minor, patch) VALUES (%d, %d, %d);",
LIBCSYNC_VERSION_MAJOR, LIBCSYNC_VERSION_MINOR, LIBCSYNC_VERSION_MICRO );
rc = csync_statedb_insert(db, stmt);
if( rc < 0 ) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "Error: Failed to insert into version table.");
return -1;
}
sqlite3_free(stmt);
return 0;
}
int csync_statedb_drop_tables(sqlite3* db) {
c_strlist_t *result = NULL;
result = csync_statedb_query(db,
"DROP TABLE IF EXISTS metadata_temp;"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"DROP TABLE IF EXISTS progress;"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"DROP TABLE IF EXISTS version;"
);
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
return 0;
}
static int _insert_metadata_visitor(void *obj, void *data) {
csync_file_stat_t *fs = NULL;
CSYNC *ctx = NULL;
sqlite3_stmt *stmt = NULL;
const char *md5 = "";
uint64_t phash = 0;
size_t pathlen;
const char *path;
int rc = -1;
fs = (csync_file_stat_t *) obj;
ctx = (CSYNC *) data;
if (ctx == NULL) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Statement visitor data invalid!");
return -1;
}
stmt = csync_get_userdata(ctx);
if (stmt == NULL) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Statement visitor data invalid!");
return -1;
}
switch (fs->instruction) {
/*
* Don't write ignored, deleted or files with an error to the statedb.
* They will be visited on the next synchronization again as a new file.
*/
case CSYNC_INSTRUCTION_DELETED:
case CSYNC_INSTRUCTION_IGNORE:
case CSYNC_INSTRUCTION_ERROR:
rc = 0;
break;
case CSYNC_INSTRUCTION_NONE:
/* As we only sync the local tree we need this flag here */
case CSYNC_INSTRUCTION_UPDATED:
case CSYNC_INSTRUCTION_CONFLICT:
path = csync_rename_adjust_path(ctx, fs->path);
pathlen = strlen(path);
phash = c_jhash64((uint8_t *) path, pathlen, 0);
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE,
"SQL statement: INSERT INTO metadata_temp \n"
"\t\t\t(phash, pathlen, path, inode, uid, gid, mode, modtime, type, md5) VALUES \n"
"\t\t\t(%lld, %lu, %s, %lld, %u, %u, %u, %lu, %d, %s);",
(long long signed int) phash,
(long unsigned int) pathlen,
path,
(long long signed int) fs->inode,
fs->uid,
fs->gid,
fs->mode,
fs->modtime,
fs->type,
fs->md5 ? fs->md5 : "<empty>");
/*
* The phash needs to be long long unsigned int or it segfaults on PPC
*/
sqlite3_bind_int64(stmt, 1, (long long signed int) phash);
sqlite3_bind_int64(stmt, 2, (long unsigned int) pathlen);
sqlite3_bind_text( stmt, 3, path, pathlen, SQLITE_STATIC);
sqlite3_bind_int64(stmt, 4, (long long signed int) fs->inode);
sqlite3_bind_int( stmt, 5, fs->uid);
sqlite3_bind_int( stmt, 6, fs->gid);
sqlite3_bind_int( stmt, 7, fs->mode);
sqlite3_bind_int64(stmt, 8, (long long signed int) fs->modtime);
sqlite3_bind_int( stmt, 9, fs->type);
/* The md5 sum might be zero for directories. They will be investigated in the next
* sync, called "Oliviers patch". */
if (fs->md5 != NULL) {
md5 = fs->md5;
}
sqlite3_bind_text( stmt,10, md5, strlen(md5), SQLITE_STATIC);
rc = sqlite3_step(stmt);
if ( rc != SQLITE_DONE) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "sqlite insert failed: %s", sqlite3_errmsg(ctx->statedb.db));
rc = -1;
}
sqlite3_reset(stmt);
SAFE_FREE(path);
break;
default:
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN,
"file: %s, instruction: %s (%d), not added to statedb!",
fs->path, csync_instruction_str(fs->instruction), fs->instruction);
rc = 1;
break;
}
return rc;
}
int csync_statedb_insert_metadata(CSYNC *ctx, sqlite3 *db) {
c_strlist_t *result = NULL;
struct timespec start, step1, step2, finish;
char buffer[] = "INSERT INTO metadata_temp VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10)";
sqlite3_stmt* stmt;
int rc;
csync_gettime(&start);
/* prepare the INSERT statement */
rc = sqlite3_prepare_v2(db, buffer, strlen(buffer), &stmt, NULL);
if (rc != SQLITE_OK) {
return -1;
}
/* Use transactions as that really speeds up processing */
result = csync_statedb_query(db, "BEGIN TRANSACTION;");
c_strlist_destroy(result);
/* and store the insert statement handle to the ctx as userdata. */
csync_set_userdata(ctx, stmt);
if (c_rbtree_walk(ctx->local.tree, ctx, _insert_metadata_visitor) < 0) {
/* inserting failed. Drop the metadata_temp table. */
result = csync_statedb_query(db, "ROLLBACK TRANSACTION;");
c_strlist_destroy(result);
result = csync_statedb_query(db, "DROP TABLE IF EXISTS metadata_temp;");
c_strlist_destroy(result);
return -1;
}
result = csync_statedb_query(db, "COMMIT TRANSACTION;");
c_strlist_destroy(result);
sqlite3_finalize(stmt);
csync_gettime(&step1);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"Transaction1 took %.2f seconds",
c_secdiff(step1, start));
/* Drop table metadata */
result = csync_statedb_query(db, "BEGIN TRANSACTION;");
c_strlist_destroy(result);
result = csync_statedb_query(db, "DROP TABLE IF EXISTS metadata;");
c_strlist_destroy(result);
/* Rename temp table to real table. */
result = csync_statedb_query(db, "ALTER TABLE metadata_temp RENAME TO metadata;");
c_strlist_destroy(result);
result = csync_statedb_query(db, "COMMIT TRANSACTION;");
c_strlist_destroy(result);
csync_gettime(&step2);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"ALTERING tables took %.2f seconds",
c_secdiff(step2, step1));
/* Recreate indices */
result = csync_statedb_query(db, "BEGIN TRANSACTION;");
c_strlist_destroy(result);
result = csync_statedb_query(db,
"CREATE INDEX IF NOT EXISTS metadata_phash ON metadata(phash);");
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"CREATE INDEX IF NOT EXISTS metadata_inode ON metadata(inode);");
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db,
"CREATE INDEX IF NOT EXISTS metadata_inode ON metadata(inode);");
if (result == NULL) {
return -1;
}
c_strlist_destroy(result);
result = csync_statedb_query(db, "COMMIT TRANSACTION;");
c_strlist_destroy(result);
csync_gettime(&finish);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"INDEXING took %.2f seconds",
c_secdiff(finish, step2));
return 0;
}
/* caller must free the memory */
csync_file_stat_t *csync_statedb_get_stat_by_hash(sqlite3 *db,
uint64_t phash)
{
csync_file_stat_t *st = NULL;
size_t len = 0;
int column_count = 0;
int rc;
if( _by_hash_stmt == NULL ) {
rc = sqlite3_prepare_v2(db, HASH_QUERY, strlen(HASH_QUERY), &_by_hash_stmt, NULL);
if( rc != SQLITE_OK ) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "WRN: Unable to create stmt for hash query.");
return NULL;
}
}
if( _by_hash_stmt == NULL ) {
return NULL;
}
column_count = sqlite3_column_count(_by_hash_stmt);
sqlite3_bind_int64(_by_hash_stmt, 1, (long long signed int)phash);
rc = sqlite3_step(_by_hash_stmt);
if( rc == SQLITE_ROW ) {
if(column_count > 7) {
/* phash, pathlen, path, inode, uid, gid, mode, modtime */
len = sqlite3_column_int(_by_hash_stmt, 1);
st = c_malloc(sizeof(csync_file_stat_t) + len + 1);
if (st == NULL) {
return NULL;
}
/* clear the whole structure */
ZERO_STRUCTP(st);
/*
* FIXME:
* We use an INTEGER(8) which is signed to the phash in the sqlite3 db,
* but the phash is an uint64_t. So for some values we get a string like
* "1.66514565505016e+19". For such a string strtoull() returns 1.
* phash = 1
*
* st->phash = strtoull(result->vector[0], NULL, 10);
*/
/* The query suceeded so use the phash we pass to the function. */
st->phash = phash;
st->pathlen = sqlite3_column_int(_by_hash_stmt, 1);
memcpy(st->path, (len ? (char*) sqlite3_column_text(_by_hash_stmt, 2) : ""), len + 1);
st->inode = sqlite3_column_int(_by_hash_stmt,3);
st->uid = sqlite3_column_int(_by_hash_stmt, 4);
st->gid = sqlite3_column_int(_by_hash_stmt, 5);
st->mode = sqlite3_column_int(_by_hash_stmt, 6);
st->modtime = strtoul((char*)sqlite3_column_text(_by_hash_stmt, 7), NULL, 10);
if(st && column_count > 8 ) {
st->type = sqlite3_column_int(_by_hash_stmt, 8);
}
if(column_count > 9 && sqlite3_column_text(_by_hash_stmt, 9)) {
st->md5 = c_strdup( (char*) sqlite3_column_text(_by_hash_stmt, 9) );
}
}
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "sqlite hash query fail: %s", sqlite3_errmsg(db));
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "No result record found for phash = %llu",
(long long unsigned int) phash);
SAFE_FREE(st);
}
sqlite3_reset(_by_hash_stmt);
return st;
}
/* caller must free the memory */
csync_file_stat_t *csync_statedb_get_stat_by_inode(sqlite3 *db,
ino_t inode) {
csync_file_stat_t *st = NULL;
c_strlist_t *result = NULL;
char *stmt = NULL;
size_t len = 0;
stmt = sqlite3_mprintf("SELECT * FROM metadata WHERE inode='%lld'",
(long long unsigned int) inode);
if (stmt == NULL) {
return NULL;
}
result = csync_statedb_query(db, stmt);
sqlite3_free(stmt);
if (result == NULL) {
return NULL;
}
if (result->count <= 6) {
c_strlist_destroy(result);
return NULL;
}
/* phash, pathlen, path, inode, uid, gid, mode, modtime */
len = strlen(result->vector[2]);
st = c_malloc(sizeof(csync_file_stat_t) + len + 1);
if (st == NULL) {
c_strlist_destroy(result);
return NULL;
}
/* clear the whole structure */
ZERO_STRUCTP(st);
st->phash = strtoull(result->vector[0], NULL, 10);
st->pathlen = atoi(result->vector[1]);
memcpy(st->path, (len ? result->vector[2] : ""), len + 1);
st->inode = atoi(result->vector[3]);
st->uid = atoi(result->vector[4]);
st->gid = atoi(result->vector[5]);
st->mode = atoi(result->vector[6]);
st->modtime = strtoul(result->vector[7], NULL, 10);
st->type = atoi(result->vector[8]);
if( result->vector[9] )
st->md5 = c_strdup(result->vector[9]);
c_strlist_destroy(result);
return st;
}
char *csync_statedb_get_uniqId( CSYNC *ctx, uint64_t jHash, csync_vio_file_stat_t *buf ) {
char *ret = NULL;
c_strlist_t *result = NULL;
char *stmt = NULL;
(void)buf;
if( ! csync_get_statedb_exists(ctx)) return ret;
stmt = sqlite3_mprintf("SELECT md5 FROM metadata WHERE phash='%lld'", jHash);
result = csync_statedb_query(ctx->statedb.db, stmt);
sqlite3_free(stmt);
if (result == NULL) {
return NULL;
}
if (result->count == 1) {
/* phash, pathlen, path, inode, uid, gid, mode, modtime */
ret = c_strdup( result->vector[0] );
}
c_strlist_destroy(result);
return ret;
}
c_strlist_t *csync_statedb_get_below_path( CSYNC *ctx, const char *path ) {
c_strlist_t *list = NULL;
char *stmt = NULL;
stmt = sqlite3_mprintf("SELECT phash, path, inode, uid, gid, mode, modtime, type, md5 "
"FROM metadata WHERE path LIKE('%q/%%')", path);
if (stmt == NULL) {
return NULL;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "SQL: %s", stmt);
list = csync_statedb_query( ctx->statedb.db, stmt );
sqlite3_free(stmt);
return list;
}
/* query the statedb, caller must free the memory */
c_strlist_t *csync_statedb_query(sqlite3 *db,
const char *statement) {
int err = SQLITE_OK;
int rc = SQLITE_OK;
size_t i = 0;
size_t busy_count = 0;
size_t retry_count = 0;
size_t column_count = 0;
sqlite3_stmt *stmt;
const char *tail = NULL;
c_strlist_t *result = NULL;
int row = 0;
do {
/* compile SQL program into a virtual machine, reattempteing if busy */
do {
if (busy_count) {
/* sleep 100 msec */
usleep(100000);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "sqlite3_prepare: BUSY counter: %zu", busy_count);
}
err = sqlite3_prepare(db, statement, -1, &stmt, &tail);
} while (err == SQLITE_BUSY && busy_count ++ < 120);
if (err != SQLITE_OK) {
if (err == SQLITE_BUSY) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Gave up waiting for lock to clear");
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN,
"sqlite3_compile error: %s - on query %s",
sqlite3_errmsg(db), statement);
break;
} else {
busy_count = 0;
column_count = sqlite3_column_count(stmt);
/* execute virtual machine by iterating over rows */
for(;;) {
err = sqlite3_step(stmt);
if (err == SQLITE_BUSY) {
if (busy_count++ > 120) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Busy counter has reached its maximum. Aborting this sql statement");
break;
}
/* sleep 100 msec */
usleep(100000);
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "sqlite3_step: BUSY counter: %zu", busy_count);
continue;
}
if (err == SQLITE_MISUSE) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "sqlite3_step: MISUSE!!");
}
if (err == SQLITE_DONE) {
if (result == NULL) {
result = c_strlist_new(1);
}
break;
}
if (err == SQLITE_ERROR) {
break;
}
row++;
if( result ) {
result = c_strlist_expand(result, row*column_count);
} else {
result = c_strlist_new(column_count);
}
if (result == NULL) {
return NULL;
}
/* iterate over columns */
for (i = 0; i < column_count; i++) {
// CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "sqlite3_column_text: %s", (char *) sqlite3_column_text(stmt, i));
if (c_strlist_add(result, (char *) sqlite3_column_text(stmt, i)) < 0) {
c_strlist_destroy(result);
return NULL;
}
}
} /* end infinite for loop */
/* deallocate vm resources */
rc = sqlite3_finalize(stmt);
if (err != SQLITE_DONE && rc != SQLITE_SCHEMA) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "sqlite_step error: %s - on query: %s", sqlite3_errmsg(db), statement);
if (result != NULL) {
c_strlist_destroy(result);
}
return NULL;
}
if (rc == SQLITE_SCHEMA) {
retry_count ++;
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "SQLITE_SCHEMA error occurred on query: %s", statement);
if (retry_count < 10) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Retrying now.");
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "RETRY count has reached its maximum. Aborting statement: %s", statement);
if (result != NULL) {
c_strlist_destroy(result);
}
result = c_strlist_new(1);
}
}
}
} while (rc == SQLITE_SCHEMA && retry_count < 10);
return result;
}
int csync_statedb_insert(sqlite3 *db, const char *statement) {
int err;
int rc = 0;
int busy_count = 0;
int retry_count = 0;
sqlite3_stmt *stmt;
const char *tail;
if (!statement[0]) {
return 0;
}
do {
/* compile SQL program into a virtual machine, reattempteing if busy */
do {
if (busy_count) {
/* sleep 100 msec */
usleep(100000);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "sqlite3_prepare: BUSY counter: %d", busy_count);
}
err = sqlite3_prepare(db, statement, -1, &stmt, &tail);
} while (err == SQLITE_BUSY && busy_count++ < 120);
if (err != SQLITE_OK) {
if (err == SQLITE_BUSY) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Gave up waiting for lock to clear");
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "sqlite3_compile error: %s on query %s", sqlite3_errmsg(db), statement);
break;
} else {
busy_count = 0;
/* execute virtual machine by iterating over rows */
for(;;) {
err = sqlite3_step(stmt);
if (err == SQLITE_BUSY) {
if (busy_count++ > 120) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "Busy counter has reached its maximum. Aborting this sql statement");
break;
}
/* sleep 100 msec */
usleep(100000);
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "sqlite3_step: BUSY counter: %d", busy_count);
}
if (err == SQLITE_MISUSE) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "sqlite3_step: MISUSE!!");
}
if (err == SQLITE_DONE || err == SQLITE_ERROR) {
break;
}
} /* end infinite for loop */
/* deallocate vm resources */
rc = sqlite3_finalize(stmt);
if (err != SQLITE_DONE && rc != SQLITE_SCHEMA) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"sqlite_step error: %s on insert: %s",
sqlite3_errmsg(db), statement);
}
if (rc == SQLITE_SCHEMA) {
retry_count++;
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "SQLITE_SCHEMA error occurred on insert: %s", statement);
if (retry_count < 10) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Retrying now.");
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "RETRY count has reached its maximum. Aborting statement: %s", statement);
}
}
}
} while (rc == SQLITE_SCHEMA && retry_count < 10);
return sqlite3_last_insert_rowid(db);
}
csync_progressinfo_t* csync_statedb_get_progressinfo(CSYNC *ctx, uint64_t phash, uint64_t modtime, const char* md5) {
char *stmt = NULL;
csync_progressinfo_t *ret = NULL;
c_strlist_t *result = NULL;
if( ! csync_get_statedb_exists(ctx)) return ret;
stmt = sqlite3_mprintf("SELECT error_count, chunk, transferid, tmpfile, error_string FROM progress WHERE phash='%llu' AND modtime='%lld' AND md5='%q'",
(long long unsigned int) phash, (long long signed int) modtime, md5);
if (!stmt) return ret;
result = csync_statedb_query(ctx->statedb.db, stmt);
sqlite3_free(stmt);
if (result == NULL) {
return NULL;
}
if (result->count == 5) {
ret = c_malloc(sizeof(csync_progressinfo_t));
if (!ret) goto out;
ret->next = NULL;
ret->chunk = atoi(result->vector[1]);
ret->error = atoi(result->vector[0]);
ret->transferId = atoi(result->vector[2]);
ret->tmpfile = c_strdup(result->vector[3]);
ret->md5 = md5 ? c_strdup(md5) : NULL;
ret->modtime = modtime;
ret->phash = phash;
ret->error_string = c_strdup(result->vector[4]);
}
out:
c_strlist_destroy(result);
return ret;
}
void csync_statedb_free_progressinfo(csync_progressinfo_t* pi)
{
if (!pi) return;
SAFE_FREE(pi->md5);
SAFE_FREE(pi->tmpfile);
SAFE_FREE(pi->error_string);
SAFE_FREE(pi);
}
int csync_statedb_write_progressinfo(CSYNC* ctx, csync_progressinfo_t* pi)
{
int rc = 0;
char *stmt = NULL;
while (rc > -1 && pi) {
stmt = sqlite3_mprintf("INSERT INTO progress "
"(phash, modtime, md5, chunk, transferid, error_count, tmpfile, error_string) VALUES"
"(%llu, %lld, '%q', %d, %d, %d, '%q', '%q');",
(long long signed int) pi->phash,
(long long int) pi->modtime,
pi->md5,
pi->chunk,
pi->transferId,
pi->error,
pi->tmpfile,
pi->error_string
);
if (stmt == NULL) {
return -1;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "%s" , stmt);
rc = csync_statedb_insert(ctx->statedb.db, stmt);
sqlite3_free(stmt);
pi = pi->next;
}
return 0;
}
/* vim: set ts=8 sw=2 et cindent: */
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