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storage_service.c
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storage_service.c
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/**
* Copyright (C) 2008 Happy Fish / YuQing
*
* FastDFS may be copied only under the terms of the GNU General
* Public License V3, which may be found in the FastDFS source kit.
* Please visit the FastDFS Home Page http://www.fastken.com/ for more detail.
**/
//storage_service.c
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include "fdfs_define.h"
#include "fastcommon/logger.h"
#include "fdfs_global.h"
#include "fastcommon/sockopt.h"
#include "fastcommon/shared_func.h"
#include "fastcommon/pthread_func.h"
#include "fastcommon/sched_thread.h"
#include "fastcommon/fast_mblock.h"
#include "fastcommon/fc_atomic.h"
#include "sf/sf_service.h"
#include "sf/sf_nio.h"
#include "tracker_types.h"
#include "tracker_proto.h"
#include "storage_service.h"
#include "storage_func.h"
#include "storage_sync.h"
#include "storage_global.h"
#include "fastcommon/base64.h"
#include "fastcommon/hash.h"
#include "fastcommon/ioevent_loop.h"
#include "fdht_client.h"
#include "fdfs_global.h"
#include "tracker_client.h"
#include "storage_client.h"
#include "storage_dio.h"
#include "storage_sync.h"
#include "trunk_mem.h"
#include "trunk_sync.h"
#include "trunk_client.h"
#include "file_id_hashtable.h"
//storage access log actions
#define ACCESS_LOG_ACTION_UPLOAD_FILE "upload"
#define ACCESS_LOG_ACTION_DOWNLOAD_FILE "download"
#define ACCESS_LOG_ACTION_DELETE_FILE "delete"
#define ACCESS_LOG_ACTION_GET_METADATA "get_metadata"
#define ACCESS_LOG_ACTION_SET_METADATA "set_metadata"
#define ACCESS_LOG_ACTION_MODIFY_FILE "modify"
#define ACCESS_LOG_ACTION_APPEND_FILE "append"
#define ACCESS_LOG_ACTION_TRUNCATE_FILE "truncate"
#define ACCESS_LOG_ACTION_QUERY_FILE "status"
#define ACCESS_LOG_ACTION_RENAME_FILE "rename"
typedef struct
{
int storage_id;
time_t mtime;
int64_t fsize;
} StorageFileInfoForCRC32;
static int last_stat_change_count = 1; //for sync to stat file
static volatile int64_t temp_file_sequence = 0;
static struct fast_mblock_man finfo_for_crc32_allocator;
extern int storage_client_create_link(ConnectionInfo *pTrackerServer, \
ConnectionInfo *pStorageServer, const char *master_filename,\
const char *src_filename, const int src_filename_len, \
const char *src_file_sig, const int src_file_sig_len, \
const char *group_name, const char *prefix_name, \
const char *file_ext_name, \
char *remote_filename, int *filename_len);
static int storage_deal_task(struct fast_task_info *pTask, const int stage);
static int storage_do_delete_file(struct fast_task_info *pTask, \
DeleteFileLogCallback log_callback, \
FileDealDoneCallback done_callback, \
const int store_path_index);
static int storage_write_to_file(struct fast_task_info *pTask, \
const int64_t file_offset, const int64_t upload_bytes, \
const int buff_offset, TaskDealFunc deal_func, \
FileDealDoneCallback done_callback, \
DisconnectCleanFunc clean_func, const int store_path_index);
static int storage_read_from_file(struct fast_task_info *pTask, \
const int64_t file_offset, const int64_t download_bytes, \
FileDealDoneCallback done_callback, \
const int store_path_index);
static int storage_service_upload_file_done(struct fast_task_info *pTask);
#define TASK_STATUS_CONTINUE 12345
#define FDHT_KEY_NAME_FILE_ID "fid"
#define FDHT_KEY_NAME_REF_COUNT "ref"
#define FDHT_KEY_NAME_FILE_SIG "sig"
#define FILE_SIGNATURE_SIZE 24
#define STORAGE_GEN_FILE_SIGNATURE(file_size, hash_codes, sig_buff) \
long2buff(file_size, sig_buff); \
if (g_file_signature_method == STORAGE_FILE_SIGNATURE_METHOD_HASH) \
{ \
int2buff(hash_codes[0], sig_buff + 8); \
int2buff(hash_codes[1], sig_buff + 12); \
int2buff(hash_codes[2], sig_buff + 16); \
int2buff(hash_codes[3], sig_buff + 20); \
} \
else \
{ \
memcpy(sig_buff + 8, hash_codes, 16); \
}
#define STORAGE_STAT_FILE_FAIL_LOG(result, client_ip, type_caption, filename) \
if (result == ENOENT) \
{ \
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, %s file: %s not exist", \
__LINE__, client_ip, type_caption, filename); \
} \
else \
{ \
logError("file: "__FILE__", line: %d, " \
"call stat fail, client ip: %s, %s file: %s, "\
"error no: %d, error info: %s", __LINE__, client_ip, \
type_caption, filename, result, STRERROR(result)); \
}
typedef struct
{
char src_true_filename[128];
char src_file_sig[64];
int src_file_sig_len;
} SourceFileInfo;
typedef struct
{
SourceFileInfo src_file_info;
bool need_response;
} TrunkCreateLinkArg;
static int storage_create_link_core(struct fast_task_info *pTask, \
SourceFileInfo *pSourceFileInfo, \
const char *src_filename, const char *master_filename, \
const int master_filename_len, \
const char *prefix_name, const char *file_ext_name, \
char *filename, int *filename_len, const bool bNeedReponse);
static int storage_set_link_file_meta(struct fast_task_info *pTask, \
const SourceFileInfo *pSrcFileInfo, const char *link_filename);
static FDFSStorageServer *get_storage_server(const char *storage_server_id)
{
FDFSStorageServer targetServer;
FDFSStorageServer *pTargetServer;
FDFSStorageServer **ppFound;
memset(&targetServer, 0, sizeof(targetServer));
strcpy(targetServer.server.id, storage_server_id);
pTargetServer = &targetServer;
ppFound = (FDFSStorageServer **)bsearch(&pTargetServer, \
g_sorted_storages, g_storage_count, \
sizeof(FDFSStorageServer *), storage_cmp_by_server_id);
if (ppFound == NULL)
{
return NULL;
}
else
{
return *ppFound;
}
}
#define CHECK_AND_WRITE_TO_STAT_FILE1 \
\
if (pClientInfo->pSrcStorage == NULL) \
{ \
pClientInfo->pSrcStorage = get_storage_server( \
pClientInfo->storage_server_id); \
} \
if (pClientInfo->pSrcStorage != NULL) \
{ \
pClientInfo->pSrcStorage->last_sync_src_timestamp = \
pFileContext->timestamp2log; \
g_sync_change_count++; \
} \
\
g_storage_stat.last_sync_update = g_current_time; \
++g_stat_change_count; \
#define CHECK_AND_WRITE_TO_STAT_FILE1_WITH_BYTES( \
total_bytes, success_bytes, bytes) \
\
if (pClientInfo->pSrcStorage == NULL) \
{ \
pClientInfo->pSrcStorage = get_storage_server( \
pClientInfo->storage_server_id); \
} \
if (pClientInfo->pSrcStorage != NULL) \
{ \
pClientInfo->pSrcStorage->last_sync_src_timestamp = \
pFileContext->timestamp2log; \
g_sync_change_count++; \
} \
\
g_storage_stat.last_sync_update = g_current_time; \
__sync_add_and_fetch(&total_bytes, bytes); \
__sync_add_and_fetch(&success_bytes, bytes); \
++g_stat_change_count; \
#define CHECK_AND_WRITE_TO_STAT_FILE2(total_count, success_count) \
__sync_add_and_fetch(&total_count, 1); \
__sync_add_and_fetch(&success_count, 1); \
++g_stat_change_count; \
#define CHECK_AND_WRITE_TO_STAT_FILE2_WITH_BYTES(total_count, success_count, \
total_bytes, success_bytes, bytes) \
__sync_add_and_fetch(&total_count, 1); \
__sync_add_and_fetch(&success_count, 1); \
__sync_add_and_fetch(&total_bytes, bytes); \
__sync_add_and_fetch(&success_bytes, bytes);\
++g_stat_change_count; \
#define CHECK_AND_WRITE_TO_STAT_FILE3(total_count, success_count, timestamp) \
__sync_add_and_fetch(&total_count, 1); \
__sync_add_and_fetch(&success_count, 1); \
timestamp = g_current_time; \
++g_stat_change_count; \
#define CHECK_AND_WRITE_TO_STAT_FILE3_WITH_BYTES(total_count, success_count, \
timestamp, total_bytes, success_bytes, bytes) \
__sync_add_and_fetch(&total_count, 1); \
__sync_add_and_fetch(&success_count, 1); \
__sync_add_and_fetch(&total_bytes, bytes); \
__sync_add_and_fetch(&success_bytes, bytes); \
timestamp = g_current_time; \
++g_stat_change_count; \
static void storage_log_access_log(struct fast_task_info *pTask, \
const char *action, const int status)
{
StorageClientInfo *pClientInfo;
struct timeval tv_end;
int time_used;
pClientInfo = (StorageClientInfo *)pTask->arg;
gettimeofday(&tv_end, NULL);
time_used = (tv_end.tv_sec - pClientInfo->file_context. \
tv_deal_start.tv_sec) * 1000
+ (tv_end.tv_usec - pClientInfo->file_context. \
tv_deal_start.tv_usec) / 1000;
logAccess(&g_access_log_context, &(pClientInfo->file_context. \
tv_deal_start), "%s %s %s %d %d %"PRId64" " \
"%"PRId64, pTask->client_ip, action, \
pClientInfo->file_context.fname2log, status, time_used, \
pClientInfo->request_length, pClientInfo->total_length);
}
#define STORAGE_ACCESS_STRCPY_FNAME2LOG(filename, filename_len, pClientInfo) \
do \
{ \
if (g_use_access_log) \
{ \
if (filename_len < sizeof(pClientInfo-> \
file_context.fname2log)) \
{ \
memcpy(pClientInfo->file_context.fname2log, \
filename, filename_len + 1); \
} \
else \
{ \
memcpy(pClientInfo->file_context.fname2log, \
filename, sizeof(pClientInfo-> \
file_context.fname2log)); \
*(pClientInfo->file_context.fname2log + \
sizeof(pClientInfo->file_context. \
fname2log) - 1) = '\0'; \
} \
} \
} while (0)
#define STORAGE_ACCESS_LOG(pTask, action, status) \
do \
{ \
if (g_use_access_log && (status != TASK_STATUS_CONTINUE)) \
{ \
storage_log_access_log(pTask, action, status); \
} \
} while (0)
static int storage_delete_file_auto(StorageFileContext *pFileContext)
{
if (pFileContext->extra_info.upload.file_type & _FILE_TYPE_TRUNK)
{
return trunk_file_delete(pFileContext->filename,
&(pFileContext->extra_info.upload.trunk_info));
}
else
{
if (unlink(pFileContext->filename) == 0)
{
return 0;
}
else
{
return errno != 0 ? errno : ENOENT;
}
}
}
static bool storage_is_slave_file(const char *remote_filename, \
const int filename_len)
{
int buff_len;
char buff[64];
int64_t file_size;
if (filename_len < FDFS_NORMAL_LOGIC_FILENAME_LENGTH)
{
logError("file: "__FILE__", line: %d, " \
"filename is too short, length: %d < %d", \
__LINE__, filename_len, FDFS_LOGIC_FILE_PATH_LEN \
+ FDFS_FILENAME_BASE64_LENGTH \
+ FDFS_FILE_EXT_NAME_MAX_LEN + 1);
return false;
}
memset(buff, 0, sizeof(buff));
base64_decode_auto(&g_fdfs_base64_context, (char *)remote_filename + \
FDFS_LOGIC_FILE_PATH_LEN, FDFS_FILENAME_BASE64_LENGTH, \
buff, &buff_len);
file_size = buff2long(buff + sizeof(int) * 2);
if (IS_TRUNK_FILE(file_size))
{
return filename_len > FDFS_TRUNK_LOGIC_FILENAME_LENGTH;
}
return filename_len > FDFS_NORMAL_LOGIC_FILENAME_LENGTH;
}
static void storage_delete_file_log_error(struct fast_task_info *pTask, \
const int err_no)
{
StorageFileContext *pFileContext;
pFileContext = &(((StorageClientInfo *)pTask->arg)->file_context);
logError("file: "__FILE__", line: %d, " \
"client ip: %s, delete file %s fail," \
"errno: %d, error info: %s", __LINE__, \
pTask->client_ip, pFileContext->filename, \
err_no, STRERROR(err_no));
}
static void storage_sync_delete_file_log_error(struct fast_task_info *pTask, \
const int err_no)
{
StorageFileContext *pFileContext;
pFileContext = &(((StorageClientInfo *)pTask->arg)->file_context);
if (err_no == ENOENT)
{
logWarning("file: "__FILE__", line: %d, " \
"cmd=%d, client ip: %s, " \
"file %s not exist, " \
"maybe delete later?", __LINE__, \
STORAGE_PROTO_CMD_SYNC_DELETE_FILE, \
pTask->client_ip, pFileContext->filename);
}
else
{
logError("file: "__FILE__", line: %d, " \
"client ip: %s, delete file %s fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
pFileContext->filename, err_no, STRERROR(err_no));
}
}
static void storage_sync_delete_file_done_callback( \
struct fast_task_info *pTask, const int err_no)
{
StorageClientInfo *pClientInfo;
StorageFileContext *pFileContext;
TrackerHeader *pHeader;
int result;
pClientInfo = (StorageClientInfo *)pTask->arg;
pFileContext = &(pClientInfo->file_context);
if (err_no == 0 && pFileContext->sync_flag != '\0')
{
result = storage_binlog_write(pFileContext->timestamp2log, \
pFileContext->sync_flag, pFileContext->fname2log);
}
else
{
result = err_no;
}
if (result == 0)
{
CHECK_AND_WRITE_TO_STAT_FILE1
}
pClientInfo->total_length = sizeof(TrackerHeader);
pClientInfo->total_offset = 0;
pTask->send.ptr->length = pClientInfo->total_length;
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = result;
pHeader->cmd = STORAGE_PROTO_CMD_RESP;
long2buff(pClientInfo->total_length - sizeof(TrackerHeader),
pHeader->pkg_len);
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
static void storage_sync_truncate_file_done_callback( \
struct fast_task_info *pTask, const int err_no)
{
StorageClientInfo *pClientInfo;
StorageFileContext *pFileContext;
TrackerHeader *pHeader;
int result;
pClientInfo = (StorageClientInfo *)pTask->arg;
pFileContext = &(pClientInfo->file_context);
if (err_no == 0 && pFileContext->sync_flag != '\0')
{
set_file_utimes(pFileContext->filename, \
pFileContext->timestamp2log);
result = storage_binlog_write(pFileContext->timestamp2log, \
pFileContext->sync_flag, pFileContext->fname2log);
}
else
{
result = err_no;
}
if (result == 0)
{
CHECK_AND_WRITE_TO_STAT_FILE1
}
pClientInfo->total_length = sizeof(TrackerHeader);
pClientInfo->total_offset = 0;
pTask->send.ptr->length = pClientInfo->total_length;
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = result;
pHeader->cmd = STORAGE_PROTO_CMD_RESP;
long2buff(pClientInfo->total_length - sizeof(TrackerHeader), \
pHeader->pkg_len);
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
static int storage_sync_copy_file_rename_filename(
StorageFileContext *pFileContext)
{
char full_filename[MAX_PATH_SIZE + 256];
int filename_len;
int result;
int store_path_index;
filename_len = strlen(pFileContext->fname2log);
if ((result=storage_logic_to_local_full_filename(
pFileContext->fname2log, filename_len,
&store_path_index, full_filename,
sizeof(full_filename))) != 0)
{
return result;
}
if (rename(pFileContext->filename, full_filename) != 0)
{
result = errno != 0 ? errno : EPERM;
logWarning("file: "__FILE__", line: %d, "
"rename %s to %s fail, "
"errno: %d, error info: %s", __LINE__,
pFileContext->filename, full_filename,
result, STRERROR(result));
return result;
}
return 0;
}
static void storage_sync_copy_file_done_callback(struct fast_task_info *pTask, \
const int err_no)
{
StorageClientInfo *pClientInfo;
StorageFileContext *pFileContext;
TrackerHeader *pHeader;
int result;
pClientInfo = (StorageClientInfo *)pTask->arg;
pFileContext = &(pClientInfo->file_context);
result = err_no;
if (result == 0)
{
if (pFileContext->op == FDFS_STORAGE_FILE_OP_WRITE)
{
if (!(pFileContext->extra_info.upload.file_type & \
_FILE_TYPE_TRUNK))
{
set_file_utimes(pFileContext->filename, \
pFileContext->timestamp2log);
result = storage_sync_copy_file_rename_filename( \
pFileContext);
}
if (result == 0)
{
storage_binlog_write(pFileContext->timestamp2log, \
pFileContext->sync_flag, pFileContext->fname2log);
}
}
else //FDFS_STORAGE_FILE_OP_DISCARD
{
storage_binlog_write(pFileContext->timestamp2log, \
pFileContext->sync_flag, pFileContext->fname2log);
}
}
if (pFileContext->op == FDFS_STORAGE_FILE_OP_WRITE)
{
if (result == 0)
{
CHECK_AND_WRITE_TO_STAT_FILE1_WITH_BYTES( \
g_storage_stat.total_sync_in_bytes, \
g_storage_stat.success_sync_in_bytes, \
pFileContext->end - pFileContext->start)
}
}
else //FDFS_STORAGE_FILE_OP_DISCARD
{
if (result == 0)
{
CHECK_AND_WRITE_TO_STAT_FILE1
}
result = EEXIST;
}
if (result != 0)
{
__sync_add_and_fetch(&g_storage_stat.total_sync_in_bytes,
pClientInfo->total_offset);
}
pClientInfo->total_length = sizeof(TrackerHeader);
pClientInfo->total_offset = 0;
pTask->send.ptr->length = pClientInfo->total_length;
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = result;
pHeader->cmd = STORAGE_PROTO_CMD_RESP;
long2buff(pClientInfo->total_length - sizeof(TrackerHeader), \
pHeader->pkg_len);
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
static void storage_sync_modify_file_done_callback( \
struct fast_task_info *pTask, const int err_no)
{
StorageClientInfo *pClientInfo;
StorageFileContext *pFileContext;
TrackerHeader *pHeader;
int result;
pClientInfo = (StorageClientInfo *)pTask->arg;
pFileContext = &(pClientInfo->file_context);
result = err_no;
if (pFileContext->op != FDFS_STORAGE_FILE_OP_DISCARD)
{
if (result == 0)
{
set_file_utimes(pFileContext->filename, \
pFileContext->timestamp2log);
storage_binlog_write(pFileContext->timestamp2log, \
pFileContext->sync_flag, pFileContext->fname2log);
CHECK_AND_WRITE_TO_STAT_FILE1_WITH_BYTES( \
g_storage_stat.total_sync_in_bytes, \
g_storage_stat.success_sync_in_bytes, \
pFileContext->end - pFileContext->start)
}
}
else //FDFS_STORAGE_FILE_OP_DISCARD
{
if (result == 0)
{
struct stat file_stat;
if (lstat(pFileContext->filename, &file_stat) != 0)
{
result = errno != 0 ? errno : ENOENT;
STORAGE_STAT_FILE_FAIL_LOG(result,
pTask->client_ip, "regular",
pFileContext->filename)
}
else if (!S_ISREG(file_stat.st_mode))
{
result = EEXIST;
}
else if (file_stat.st_size < pFileContext->end)
{
result = ENOENT; //need to resync
}
else
{
result = EEXIST;
}
CHECK_AND_WRITE_TO_STAT_FILE1
}
}
if (result != 0)
{
__sync_add_and_fetch(&g_storage_stat.total_sync_in_bytes,
pClientInfo->total_offset);
}
pClientInfo->total_length = sizeof(TrackerHeader);
pClientInfo->total_offset = 0;
pTask->send.ptr->length = pClientInfo->total_length;
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = result;
pHeader->cmd = STORAGE_PROTO_CMD_RESP;
long2buff(pClientInfo->total_length - sizeof(TrackerHeader), \
pHeader->pkg_len);
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
static void storage_get_metadata_done_callback(struct fast_task_info *pTask,
const int err_no)
{
TrackerHeader *pHeader;
STORAGE_ACCESS_LOG(pTask, ACCESS_LOG_ACTION_GET_METADATA, \
err_no);
if (err_no != 0)
{
__sync_add_and_fetch(&g_storage_stat.total_get_meta_count, 1);
if (pTask->send.ptr->length == sizeof(TrackerHeader)) //never response
{
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = err_no;
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
else
{
sf_nio_notify(pTask, SF_NIO_STAGE_CLOSE);
}
}
else
{
CHECK_AND_WRITE_TO_STAT_FILE2( \
g_storage_stat.total_get_meta_count, \
g_storage_stat.success_get_meta_count)
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
}
static void storage_download_file_done_callback( \
struct fast_task_info *pTask, const int err_no)
{
StorageFileContext *pFileContext;
TrackerHeader *pHeader;
STORAGE_ACCESS_LOG(pTask, ACCESS_LOG_ACTION_DOWNLOAD_FILE, \
err_no);
pFileContext = &(((StorageClientInfo *)pTask->arg)->file_context);
if (err_no != 0)
{
__sync_add_and_fetch(&g_storage_stat.total_download_count, 1);
__sync_add_and_fetch(&g_storage_stat.total_download_bytes,
pFileContext->offset - pFileContext->start);
if (pTask->send.ptr->length == sizeof(TrackerHeader)) //never response
{
pHeader = (TrackerHeader *)pTask->send.ptr->data;
pHeader->status = err_no;
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
else
{
sf_nio_notify(pTask, SF_NIO_STAGE_CLOSE);
}
}
else
{
CHECK_AND_WRITE_TO_STAT_FILE2_WITH_BYTES( \
g_storage_stat.total_download_count, \
g_storage_stat.success_download_count, \
g_storage_stat.total_download_bytes, \
g_storage_stat.success_download_bytes, \
pFileContext->end - pFileContext->start)
sf_nio_notify(pTask, SF_NIO_STAGE_SEND);
}
}
static int storage_do_delete_meta_file(struct fast_task_info *pTask)
{
StorageClientInfo *pClientInfo;
StorageFileContext *pFileContext;
GroupArray *pGroupArray;
char meta_filename[MAX_PATH_SIZE + 256];
char true_filename[128];
char value[128];
FDHTKeyInfo key_info_fid;
FDHTKeyInfo key_info_ref;
FDHTKeyInfo key_info_sig;
char *pValue;
int value_len;
int src_file_nlink;
int result;
int store_path_index;
pClientInfo = (StorageClientInfo *)pTask->arg;
pFileContext = &(pClientInfo->file_context);
if (pFileContext->extra_info.upload.file_type & \
_FILE_TYPE_TRUNK)
{
int filename_len = strlen(pFileContext->fname2log);
if ((result=storage_split_filename_ex(pFileContext->fname2log, \
&filename_len, true_filename, &store_path_index)) != 0)
{
return result;
}
sprintf(meta_filename, "%s/data/%s"FDFS_STORAGE_META_FILE_EXT, \
g_fdfs_store_paths.paths[store_path_index].path, true_filename);
}
else
{
sprintf(meta_filename, "%s"FDFS_STORAGE_META_FILE_EXT, \
pFileContext->filename);
}
if (fileExists(meta_filename))
{
if (unlink(meta_filename) != 0)
{
if (errno != ENOENT)
{
result = errno != 0 ? errno : EACCES;
logError("file: "__FILE__", line: %d, " \
"client ip: %s, delete file %s fail," \
"errno: %d, error info: %s", __LINE__,\
pTask->client_ip, meta_filename, \
result, STRERROR(result));
return result;
}
}
else
{
sprintf(meta_filename, "%s"FDFS_STORAGE_META_FILE_EXT, \
pFileContext->fname2log);
result = storage_binlog_write(g_current_time, \
STORAGE_OP_TYPE_SOURCE_DELETE_FILE, meta_filename);
if (result != 0)
{
return result;
}
}
}
src_file_nlink = -1;
if (g_check_file_duplicate)
{
pGroupArray = pTask->thread_data->arg;
memset(&key_info_sig, 0, sizeof(key_info_sig));
key_info_sig.namespace_len = g_namespace_len;
memcpy(key_info_sig.szNameSpace, g_key_namespace, \
g_namespace_len);
key_info_sig.obj_id_len = snprintf(\
key_info_sig.szObjectId, \
sizeof(key_info_sig.szObjectId), "%s/%s", \
g_group_name, pFileContext->fname2log);
key_info_sig.key_len = sizeof(FDHT_KEY_NAME_FILE_SIG)-1;
memcpy(key_info_sig.szKey, FDHT_KEY_NAME_FILE_SIG, \
key_info_sig.key_len);
pValue = value;
value_len = sizeof(value) - 1;
result = fdht_get_ex1(pGroupArray, g_keep_alive, \
&key_info_sig, FDHT_EXPIRES_NONE, \
&pValue, &value_len, malloc);
if (result == 0)
{
memcpy(&key_info_fid, &key_info_sig, \
sizeof(FDHTKeyInfo));
key_info_fid.obj_id_len = value_len;
memcpy(key_info_fid.szObjectId, pValue, \
value_len);
key_info_fid.key_len = sizeof(FDHT_KEY_NAME_FILE_ID) - 1;
memcpy(key_info_fid.szKey, FDHT_KEY_NAME_FILE_ID, \
key_info_fid.key_len);
value_len = sizeof(value) - 1;
result = fdht_get_ex1(pGroupArray, \
g_keep_alive, &key_info_fid, \
FDHT_EXPIRES_NONE, &pValue, \
&value_len, malloc);
if (result == 0)
{
memcpy(&key_info_ref, &key_info_sig, \
sizeof(FDHTKeyInfo));
key_info_ref.obj_id_len = value_len;
memcpy(key_info_ref.szObjectId, pValue,
value_len);
key_info_ref.key_len = \
sizeof(FDHT_KEY_NAME_REF_COUNT)-1;
memcpy(key_info_ref.szKey, \
FDHT_KEY_NAME_REF_COUNT, \
key_info_ref.key_len);
value_len = sizeof(value) - 1;
result = fdht_get_ex1(pGroupArray, \
g_keep_alive, &key_info_ref, \
FDHT_EXPIRES_NONE, &pValue, \
&value_len, malloc);
if (result == 0)
{
*(pValue + value_len) = '\0';
src_file_nlink = atoi(pValue);
}
else if (result != ENOENT)
{
logError("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_get fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
return result;
}
}
else if (result != ENOENT)
{
logError("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_get fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
return result;
}
}
else if (result != ENOENT)
{
logError("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_get fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
return result;
}
}
if (src_file_nlink < 0)
{
return 0;
}
if (g_check_file_duplicate)
{
char *pSeperator;
struct stat stat_buf;
FDFSTrunkHeader trunkHeader;
pGroupArray = pTask->thread_data->arg;
if ((result=fdht_delete_ex(pGroupArray, g_keep_alive, \
&key_info_sig)) != 0)
{
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_delete fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
}
value_len = sizeof(value) - 1;
result = fdht_inc_ex(pGroupArray, g_keep_alive, \
&key_info_ref, FDHT_EXPIRES_NEVER, -1, \
value, &value_len);
if (result != 0)
{
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_inc fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
return result;
}
if (!(value_len == 1 && *value == '0')) //value == 0
{
return 0;
}
if ((result=fdht_delete_ex(pGroupArray, g_keep_alive, \
&key_info_fid)) != 0)
{
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_delete fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
}
if ((result=fdht_delete_ex(pGroupArray, g_keep_alive, \
&key_info_ref)) != 0)
{
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, fdht_delete fail," \
"errno: %d, error info: %s", \
__LINE__, pTask->client_ip, \
result, STRERROR(result));
}
*(key_info_ref.szObjectId+key_info_ref.obj_id_len)='\0';
pSeperator = strchr(key_info_ref.szObjectId, '/');
if (pSeperator == NULL)
{
logWarning("file: "__FILE__", line: %d, " \
"invalid file_id: %s", __LINE__, \
key_info_ref.szObjectId);
return 0;
}
pSeperator++;
value_len = key_info_ref.obj_id_len - (pSeperator - \
key_info_ref.szObjectId);
memcpy(value, pSeperator, value_len + 1);
if ((result=storage_split_filename_ex(value, &value_len, \
true_filename, &store_path_index)) != 0)
{
return result;
}
if ((result=fdfs_check_data_filename(true_filename, \
value_len)) != 0)
{
return result;
}
if ((result=trunk_file_lstat(store_path_index, true_filename, \
value_len, &stat_buf, \
&(pFileContext->extra_info.upload.trunk_info), \
&trunkHeader)) != 0)
{
STORAGE_STAT_FILE_FAIL_LOG(result, pTask->client_ip,
"logic", value)
return 0;
}
if (IS_TRUNK_FILE_BY_ID(pFileContext->extra_info. \
upload.trunk_info))
{
trunk_get_full_filename(&(pFileContext->extra_info. \
upload.trunk_info), pFileContext->filename, \
sizeof(pFileContext->filename));
}
else
{
sprintf(pFileContext->filename, "%s/data/%s", \
g_fdfs_store_paths.paths[store_path_index].path, \
true_filename);
}
if ((result=storage_delete_file_auto(pFileContext)) != 0)
{
logWarning("file: "__FILE__", line: %d, " \
"client ip: %s, delete logic source file " \
"%s fail, errno: %d, error info: %s", \