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transfer-mgr.c
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
#include "common.h"
#define DEBUG_FLAG SEAFILE_DEBUG_TRANSFER
#include "log.h"
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include <ccnet.h>
#include "utils.h"
#include "db.h"
#include <openssl/rand.h>
#include "seafile-session.h"
#include "transfer-mgr.h"
#include "commit-mgr.h"
#include "fs-mgr.h"
#include "block-mgr.h"
#include "seafile-error.h"
#include "vc-common.h"
#include "merge.h"
#include "sync-mgr.h"
#include "clone-mgr.h"
#include "vc-utils.h"
#include "mq-mgr.h"
#include "seafile-config.h"
#include "processors/check-tx-v2-proc.h"
#include "processors/check-tx-v3-proc.h"
#include "processors/sendfs-proc.h"
#include "processors/getfs-proc.h"
#include "processors/getcs-proc.h"
#include "processors/sendbranch-proc.h"
#include "processors/getcommit-v2-proc.h"
#include "processors/getcommit-v3-proc.h"
#include "processors/sendcommit-v3-proc.h"
#include "processors/sendcommit-v3-new-proc.h"
#include "processors/checkbl-proc.h"
#include "processors/getcs-v2-proc.h"
#include "processors/sendcommit-v4-proc.h"
#include "processors/sendfs-v2-proc.h"
#include "processors/getfs-v2-proc.h"
#include "block-tx-client.h"
#include "diff-simple.h"
#define TRANSFER_DB "transfer.db"
#define SCHEDULE_INTERVAL 1 /* 1s */
#define MAX_QUEUED_BLOCKS 50
#define DEFAULT_BLOCK_SIZE (1 << 20)
static int schedule_task_pulse (void *vmanager);
static void state_machine_tick (TransferTask *task);
static void
transition_state (TransferTask *task, int state, int rt_state);
/**
* transfer task states:
*
* INIT COMMIT FS DATA FINISHED NETDOWN
* ------------------------------------------------------------------------
* NORMAL 1 2 3 4 x 15
* CANCELED x 9 10 11 12 x
* FINISHED x x x x 13 x
* ERROR x x x x 14 x
*
* state transitions:
* Event Transition
* -------------------------------------------------------
* start commit tx 1 --> 2
* start fs tx 2 --> 3
* start block tx 3 --> 4
* complete block tx 4 --> 13
*
* user cancel task 2 --> 9, 3 --> 10,
* 4 --> 11, 15 -->12
*
* on_commit_uploaded(),
* on_commit_downloaded()
* checks task canceled 9 --> 12
* if connection lost 9 --> 15
*
* on_fs_uploaded(),
* on_fs_downloaded()
* checks task canceled 10 --> 12
* if connection lost 10 --> 15
*
* state_machine_tick()
* checks task canceled in DATA state 11 --> 12
*
* error in COMMIT or FS state --> 14
*
* User can remove a task only when its runtime state is 'FINISHED'.
* User can cancel a task only when its state is 'NORMAL'.
*/
/*
* Transfer Task.
*/
static const char *transfer_task_state_str[] = {
"normal",
"canceled",
"finished",
"error",
};
static const char *transfer_task_rt_state_str[] = {
"init",
"check",
"commit",
"fs",
"check-blocks",
"get-chunk-server",
"data",
"update-branch",
"finished",
"netdown",
};
static const char *transfer_task_error_strs[] = {
"Successful",
"Unknown error",
"Service on remote server is not available",
"Access denied to service. Please check your registration on server.",
"Internal error when preparing upload",
"Internal error when preparing download",
"No permission to access remote library",
"Library doesn't exist on the remote end",
"Internal error when starting to send revision information",
"Internal error when starting to get revision information",
"Failed to upload revision information to remote library",
"Failed to get revision information from remote library",
"Internal error when starting to send file information",
"Internal error when starting to get file information",
"Incomplete file information in the local library",
"Failed to upload file information to remote library",
"Failed to get file information from remote library",
"Incomplete file information in the local library",
"Internal error when starting to update remote library",
"Others have concurrent updates to the remote library. You need to sync again.",
"Storage quota full",
"Server failed to check storage quota",
"Transfer protocol outdated. You need to upgrade seafile.",
"Incomplete revision information in the local library",
"Failed to compare data to server.",
"Failed to get block server list.",
"Failed to start block transfer client.",
"Failed to upload blocks.",
"Failed to download blocks.",
"Server version is too old.",
"Files are locked by other application.",
};
const char *
task_state_to_str (int state)
{
return transfer_task_state_str[state];
}
const char *
task_rt_state_to_str (int rt_state)
{
return transfer_task_rt_state_str[rt_state];
}
const char *
task_error_str (int task_errno)
{
return transfer_task_error_strs[task_errno];
}
static TransferTask *
seaf_transfer_task_new (SeafTransferManager *manager,
const char *tx_id,
const char *repo_id,
const char *dest_id,
const char *from_branch,
const char *to_branch,
const char *token,
int task_type)
{
TransferTask *task;
char *uuid;
g_return_val_if_fail (repo_id != NULL, NULL);
g_return_val_if_fail (from_branch != NULL, NULL);
g_return_val_if_fail (to_branch != NULL, NULL);
g_return_val_if_fail (token != NULL, NULL);
task = g_new0 (TransferTask, 1);
task->manager = manager;
memcpy (task->repo_id, repo_id, 37);
task->repo_id[36] = '\0';
task->type = task_type;
task->runtime_state = TASK_RT_STATE_INIT;
task->from_branch = g_strdup(from_branch);
task->to_branch = g_strdup(to_branch);
task->token = g_strdup(token);
if (!tx_id) {
uuid = gen_uuid();
memcpy (task->tx_id, uuid, 37);
g_free (uuid);
} else {
memcpy (task->tx_id, tx_id, 37);
}
if (dest_id)
task->dest_id = g_strdup(dest_id);
task->rsize = -1;
task->dsize = 0;
return task;
}
static void
free_block_id (gpointer data, gpointer user_data)
{
g_free (data);
}
static void
free_chunk_server (gpointer data, gpointer user_data)
{
ChunkServer *cs = data;
g_free (cs->addr);
g_free (cs);
}
static void
seaf_transfer_task_free (TransferTask *task)
{
g_free (task->session_token);
g_free (task->dest_id);
g_free (task->from_branch);
g_free (task->to_branch);
g_free (task->token);
g_free (task->email);
if (task->fs_roots)
object_list_free (task->fs_roots);
if (task->commits)
object_list_free (task->commits);
if (task->protocol_version < 7 && task->block_ids) {
g_queue_foreach (task->block_ids, free_block_id, NULL);
g_queue_free (task->block_ids);
}
if (task->protocol_version >= 4) {
g_list_foreach (task->chunk_servers, free_chunk_server, NULL);
g_list_free (task->chunk_servers);
if (task->block_list)
block_list_free (task->block_list);
}
g_free (task);
}
int
transfer_task_get_rate (TransferTask *task)
{
return task->last_tx_bytes;
}
int
transfer_task_get_done_blocks (TransferTask *task)
{
if (task->runtime_state != TASK_RT_STATE_DATA)
return 0;
if (task->protocol_version >= 7 && task->type == TASK_TYPE_DOWNLOAD)
return task->n_downloaded;
if (task->protocol_version >= 4) {
int n_left = g_queue_get_length (task->block_ids);
return task->block_list->n_blocks - n_left;
}
if (task->type == TASK_TYPE_UPLOAD)
return task->n_uploaded;
else
return task->block_list->n_valid_blocks;
}
static void
emit_transfer_done_signal (TransferTask *task)
{
if (task->type == TASK_TYPE_DOWNLOAD)
g_signal_emit_by_name (seaf, "repo-fetched", task);
else
g_signal_emit_by_name (seaf, "repo-uploaded", task);
}
static void
transition_state (TransferTask *task, int state, int rt_state)
{
seaf_message ("Transfer repo '%.8s': ('%s', '%s') --> ('%s', '%s')\n",
task->repo_id,
task_state_to_str(task->state),
task_rt_state_to_str(task->runtime_state),
task_state_to_str(state),
task_rt_state_to_str(rt_state));
task->last_runtime_state = task->runtime_state;
if (rt_state == TASK_RT_STATE_FINISHED) {
/* Clear download head info. */
if (task->protocol_version >= 7 && task->type == TASK_TYPE_DOWNLOAD &&
state == TASK_STATE_FINISHED)
seaf_repo_manager_set_repo_property (seaf->repo_mgr,
task->repo_id,
REPO_PROP_DOWNLOAD_HEAD,
EMPTY_SHA1);
task->state = state;
task->runtime_state = rt_state;
emit_transfer_done_signal (task);
return;
}
if (state != task->state)
task->state = state;
task->runtime_state = rt_state;
}
void
transition_state_to_error (TransferTask *task, int task_errno)
{
g_return_if_fail (task_errno != 0);
seaf_message ("Transfer repo '%.8s': ('%s', '%s') --> ('%s', '%s'): %s\n",
task->repo_id,
task_state_to_str(task->state),
task_rt_state_to_str(task->runtime_state),
task_state_to_str(TASK_STATE_ERROR),
task_rt_state_to_str(TASK_RT_STATE_FINISHED),
task_error_str(task_errno));
task->last_runtime_state = task->runtime_state;
task->state = TASK_STATE_ERROR;
task->runtime_state = TASK_RT_STATE_FINISHED;
task->error = task_errno;
emit_transfer_done_signal (task);
}
void
transfer_task_set_error (TransferTask *task, int error)
{
transition_state_to_error (task, error);
}
void
transfer_task_set_netdown (TransferTask *task)
{
g_return_if_fail (task->state == TASK_STATE_NORMAL);
if (task->runtime_state == TASK_RT_STATE_NETDOWN)
return;
transition_state (task, TASK_STATE_NORMAL, TASK_RT_STATE_NETDOWN);
}
static void
transfer_task_with_proc_failure (TransferTask *task,
CcnetProcessor *proc,
int defalut_error)
{
seaf_debug ("Transfer repo '%.8s': proc %s(%d) failure: %d\n",
task->repo_id,
GET_PNAME(proc), PRINT_ID(proc->id),
proc->failure);
switch (proc->failure) {
case PROC_DONE:
/* It can never happen */
g_return_if_reached ();
case PROC_REMOTE_DEAD:
seaf_warning ("[tr-mgr] Shutdown processor with failure %d\n",
proc->failure);
transfer_task_set_netdown (task);
break;
case PROC_NO_SERVICE:
transition_state_to_error (task, TASK_ERR_NO_SERVICE);
break;
case PROC_PERM_ERR:
transition_state_to_error (task, TASK_ERR_PROC_PERM_ERR);
break;
case PROC_BAD_RESP:
case PROC_NOTSET:
default:
transition_state_to_error (task, defalut_error);
}
}
inline static gboolean is_peer_relay (const char *peer_id)
{
CcnetPeer *peer = ccnet_get_peer(seaf->ccnetrpc_client, peer_id);
if (!peer)
return FALSE;
gboolean is_relay = string_list_is_exists(peer->role_list, "MyRelay");
g_object_unref (peer);
return is_relay;
}
/*
* Transfer Manager.
*/
SeafTransferManager*
seaf_transfer_manager_new (struct _SeafileSession *seaf)
{
SeafTransferManager *mgr = g_new0 (SeafTransferManager, 1);
mgr->seaf = seaf;
mgr->download_tasks = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) seaf_transfer_task_free);
mgr->upload_tasks = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) seaf_transfer_task_free);
char *db_path = g_build_path (PATH_SEPERATOR, seaf->seaf_dir, TRANSFER_DB, NULL);
if (sqlite_open_db (db_path, &mgr->db) < 0) {
g_critical ("[Transfer mgr] Failed to open transfer db\n");
g_free (db_path);
g_free (mgr);
return NULL;
}
return mgr;
}
static void register_processors (CcnetClient *client)
{
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-check-tx-v2",
SEAFILE_TYPE_CHECK_TX_V2_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-check-tx-v3",
SEAFILE_TYPE_CHECK_TX_V3_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendfs",
SEAFILE_TYPE_SENDFS_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getfs",
SEAFILE_TYPE_GETFS_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendbranch",
SEAFILE_TYPE_SENDBRANCH_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getcs",
SEAFILE_TYPE_GETCS_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getcommit-v2",
SEAFILE_TYPE_GETCOMMIT_V2_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getcommit-v3",
SEAFILE_TYPE_GETCOMMIT_V3_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendcommit-v3",
SEAFILE_TYPE_SENDCOMMIT_V3_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendcommit-v3-new",
SEAFILE_TYPE_SENDCOMMIT_V3_NEW_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-checkbl",
SEAFILE_TYPE_CHECKBL_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getcs-v2",
SEAFILE_TYPE_GETCS_V2_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendcommit-v4",
SEAFILE_TYPE_SENDCOMMIT_V4_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-sendfs-v2",
SEAFILE_TYPE_SENDFS_V2_PROC);
ccnet_proc_factory_register_processor (client->proc_factory,
"seafile-getfs-v2",
SEAFILE_TYPE_GETFS_V2_PROC);
}
int
seaf_transfer_manager_start (SeafTransferManager *manager)
{
const char *sql;
sql = "CREATE TABLE IF NOT EXISTS CloneHeads "
"(repo_id TEXT PRIMARY KEY, head TEXT);";
if (sqlite_query_exec (manager->db, sql) < 0)
return -1;
register_processors (seaf->session);
manager->schedule_timer = ccnet_timer_new (schedule_task_pulse, manager,
SCHEDULE_INTERVAL * 1000);
return 0;
}
/*
* We don't want to have two tasks for the same repo to run
* simultaneously.
*/
static gboolean
is_duplicate_task (SeafTransferManager *manager,
const char *repo_id)
{
GHashTableIter iter;
gpointer key, value;
TransferTask *task;
g_hash_table_iter_init (&iter, manager->download_tasks);
while (g_hash_table_iter_next (&iter, &key, &value)) {
task = value;
if (strcmp(task->repo_id, repo_id) == 0 &&
task->runtime_state != TASK_RT_STATE_FINISHED)
return TRUE;
}
g_hash_table_iter_init (&iter, manager->upload_tasks);
while (g_hash_table_iter_next (&iter, &key, &value)) {
task = value;
if (strcmp(task->repo_id, repo_id) == 0 &&
task->runtime_state != TASK_RT_STATE_FINISHED)
return TRUE;
}
return FALSE;
}
static gboolean
remove_task_help (gpointer key, gpointer value, gpointer user_data)
{
TransferTask *task = value;
const char *repo_id = user_data;
if (strcmp(task->repo_id, repo_id) != 0)
return FALSE;
return TRUE;
}
static void
clean_tasks_for_repo (SeafTransferManager *manager,
const char *repo_id)
{
g_hash_table_foreach_remove (manager->download_tasks,
remove_task_help, (gpointer)repo_id);
g_hash_table_foreach_remove (manager->upload_tasks,
remove_task_help, (gpointer)repo_id);
}
char *
seaf_transfer_manager_add_download (SeafTransferManager *manager,
const char *repo_id,
int repo_version,
const char *peer_id,
const char *from_branch,
const char *to_branch,
const char *token,
gboolean server_side_merge,
const char *passwd,
const char *worktree,
uid_t uid,
gid_t gid,
const char *email,
GError **error)
{
TransferTask *task;
if (!repo_id || !from_branch || !to_branch || !token || !email) {
g_set_error (error, SEAFILE_DOMAIN, SEAF_ERR_BAD_ARGS, "Empty argument(s)");
return NULL;
}
if (is_duplicate_task (manager, repo_id)) {
g_set_error (error, SEAFILE_DOMAIN, SEAF_ERR_GENERAL, "Task is already in progress");
return NULL;
}
clean_tasks_for_repo (manager, repo_id);
task = seaf_transfer_task_new (manager, NULL, repo_id, peer_id,
from_branch, to_branch, token,
TASK_TYPE_DOWNLOAD);
task->state = TASK_STATE_NORMAL;
task->repo_version = repo_version;
task->email = g_strdup(email);
task->server_side_merge = server_side_merge;
/* Mark task "clone" if it's a new repo. */
if (!seaf_repo_manager_repo_exists (seaf->repo_mgr, repo_id))
task->is_clone = TRUE;
if (task->is_clone) {
task->passwd = g_strdup(passwd);
task->worktree = g_strdup(worktree);
task->uid = uid;
task->gid = gid;
}
g_hash_table_insert (manager->download_tasks,
g_strdup(task->tx_id),
task);
return g_strdup(task->tx_id);
}
char *
seaf_transfer_manager_add_upload (SeafTransferManager *manager,
const char *repo_id,
int repo_version,
const char *peer_id,
const char *from_branch,
const char *to_branch,
const char *token,
gboolean server_side_merge,
GError **error)
{
TransferTask *task;
SeafRepo *repo;
if (!repo_id || !from_branch || !to_branch || !token) {
g_set_error (error, SEAFILE_DOMAIN, SEAF_ERR_BAD_ARGS, "Empty argument(s)");
return NULL;
}
repo = seaf_repo_manager_get_repo (seaf->repo_mgr, repo_id);
if (!repo) {
g_set_error (error, SEAFILE_DOMAIN, SEAF_ERR_BAD_ARGS, "Repo not found");
return NULL;
}
if (is_duplicate_task (manager, repo_id)) {
g_set_error (error, SEAFILE_DOMAIN, SEAF_ERR_GENERAL, "Task is already in progress");
return NULL;
}
clean_tasks_for_repo (manager, repo_id);
task = seaf_transfer_task_new (manager, NULL, repo_id, peer_id,
from_branch, to_branch, token,
TASK_TYPE_UPLOAD);
task->state = TASK_STATE_NORMAL;
task->repo_version = repo_version;
task->server_side_merge = server_side_merge;
g_hash_table_insert (manager->upload_tasks,
g_strdup(task->tx_id),
task);
return g_strdup(task->tx_id);
}
/* find running tranfer of a repo */
TransferTask*
seaf_transfer_manager_find_transfer_by_repo (SeafTransferManager *manager,
const char *repo_id)
{
GHashTableIter iter;
gpointer key, value;
TransferTask *task;
g_hash_table_iter_init (&iter, manager->download_tasks);
while (g_hash_table_iter_next (&iter, &key, &value)) {
task = value;
if (strcmp(task->repo_id, repo_id) == 0 &&
task->state != TASK_STATE_FINISHED)
return task;
}
g_hash_table_iter_init (&iter, manager->upload_tasks);
while (g_hash_table_iter_next (&iter, &key, &value)) {
task = value;
if (strcmp(task->repo_id, repo_id) == 0 &&
task->state != TASK_STATE_FINISHED)
return task;
}
return NULL;
}
static void
remove_task(SeafTransferManager *manager, TransferTask *task)
{
if (task->type == TASK_TYPE_DOWNLOAD) {
g_hash_table_remove (manager->download_tasks, task->tx_id);
} else {
g_hash_table_remove (manager->upload_tasks, task->tx_id);
}
}
void
seaf_transfer_manager_remove_task (SeafTransferManager *manager,
const char *tx_id,
int task_type)
{
TransferTask *task = NULL;
if (task_type == TASK_TYPE_DOWNLOAD)
task = g_hash_table_lookup (manager->download_tasks, tx_id);
else
task = g_hash_table_lookup (manager->upload_tasks, tx_id);
if (!task)
return;
if (task->runtime_state != TASK_RT_STATE_FINISHED) {
seaf_warning ("[tr-mgr] Try to remove running task!\n");
return;
}
remove_task (manager, task);
}
static void
cancel_task (TransferTask *task)
{
if (task->runtime_state == TASK_RT_STATE_NETDOWN ||
task->runtime_state == TASK_RT_STATE_INIT) {
transition_state (task, TASK_STATE_CANCELED, TASK_RT_STATE_FINISHED);
} else {
/*
* Only transition state, not runtime state.
* Runtime state transition is handled asynchronously.
*/
if (task->protocol_version >= 4 &&
task->runtime_state == TASK_RT_STATE_DATA)
block_tx_client_run_command (task->tx_info, BLOCK_CLIENT_CMD_CANCEL);
transition_state (task, TASK_STATE_CANCELED, task->runtime_state);
}
}
void
seaf_transfer_manager_cancel_task (SeafTransferManager *manager,
const char *tx_id,
int task_type)
{
TransferTask *task = NULL;
if (task_type == TASK_TYPE_DOWNLOAD)
task = g_hash_table_lookup (manager->download_tasks, tx_id);
else
task = g_hash_table_lookup (manager->upload_tasks, tx_id);
if (!task)
return;
if (task->state != TASK_STATE_NORMAL) {
seaf_warning ("Task cannot be canceled!\n");
return;
}
cancel_task (task);
}
GList*
seaf_transfer_manager_get_upload_tasks (SeafTransferManager *manager)
{
return g_hash_table_get_values (manager->upload_tasks);
}
GList*
seaf_transfer_manager_get_download_tasks (SeafTransferManager *manager)
{
return g_hash_table_get_values (manager->download_tasks);
}
int
seaf_transfer_manager_download_file_blocks (SeafTransferManager *manager,
TransferTask *task,
const char *file_id)
{
Seafile *file;
file = seaf_fs_manager_get_seafile (seaf->fs_mgr,
task->repo_id,
task->repo_version,
file_id);
if (!file) {
seaf_warning ("Failed to find seafile object %s in repo %.8s.\n",
file_id, task->repo_id);
return -1;
}
int i;
char *block_id;
for (i = 0; i < file->n_blocks; ++i) {
block_id = file->blk_sha1s[i];
if (!seaf_block_manager_block_exists (seaf->block_mgr,
task->repo_id,
task->repo_version,
block_id))
g_queue_push_tail (task->block_ids, g_strdup(block_id));
}
seafile_unref (file);
BlockTxInfo *info = task->tx_info;
int rsp;
retry:
if (g_queue_get_length (task->block_ids) == 0)
return BLOCK_CLIENT_SUCCESS;
block_tx_client_run_command (info, BLOCK_CLIENT_CMD_TRANSFER);
/* Wait until block download is done. */
piperead (info->done_pipe[0], &rsp, sizeof(rsp));
/* The server closes the socket after 30 seconds without data,
* so just retry if we encounter network error.
*/
if (rsp == BLOCK_CLIENT_NET_ERROR) {
block_tx_client_run_command (info, BLOCK_CLIENT_CMD_RESTART);
piperead (info->done_pipe[0], &rsp, sizeof(rsp));
if (rsp == BLOCK_CLIENT_READY)
goto retry;
}
while ((block_id = g_queue_pop_head(task->block_ids)) != NULL)
g_free (block_id);
return rsp;
}
/* Utility functions. */
static BlockList *
load_blocklist_with_local_history (TransferTask *task)
{
BlockList *bl1, *bl2, *bl = NULL;
int i;
ObjectList *commits = task->commits;
char *commit_id;
SeafCommit *commit;
GList *parents = NULL;
/* Upload the blocks pointed by new commits, excluding
* blocks that have been uploaded before.
*/
bl1 = block_list_new ();
for (i = 0; i < commits->obj_ids->len; ++i) {
commit_id = g_ptr_array_index (commits->obj_ids, i);
commit = seaf_commit_manager_get_commit (seaf->commit_mgr,
task->repo_id,
task->repo_version,
commit_id);
if (!commit) {
seaf_warning ("Failed to get commit %s:%s.\n", task->repo_id, commit_id);
block_list_free (bl1);
return NULL;
}
if (seaf_fs_manager_populate_blocklist (seaf->fs_mgr,
task->repo_id,
task->repo_version,
commit->root_id,
bl1) < 0) {
seaf_commit_unref (commit);
block_list_free (bl1);
return NULL;
}
if (commit->parent_id && !object_list_exists (commits, commit->parent_id))
parents = g_list_prepend (parents, g_strdup(commit->parent_id));
if (commit->second_parent_id &&
!object_list_exists (commits, commit->second_parent_id))
parents = g_list_prepend (parents, g_strdup(commit->second_parent_id));
seaf_commit_unref (commit);
}
GList *p;
char *parent_id;
SeafCommit *parent;
for (p = parents; p; p = p->next) {
parent_id = p->data;
parent = seaf_commit_manager_get_commit (seaf->commit_mgr,
task->repo_id,
task->repo_version,
parent_id);
if (!parent) {
block_list_free (bl1);
return NULL;
}
bl2 = block_list_new ();
if (seaf_fs_manager_populate_blocklist (seaf->fs_mgr,
task->repo_id,
task->repo_version,
parent->root_id, bl2) < 0) {
seaf_commit_unref (parent);
block_list_free (bl1);
block_list_free (bl2);
return NULL;
}
bl = block_list_difference (bl1, bl2);
block_list_free (bl1);
bl1 = bl;
seaf_commit_unref (parent);
block_list_free (bl2);
}
seaf_debug ("Uploading %u blocks.\n", bl1->n_blocks);
return bl1;
}
static int
seaf_transfer_task_load_blocklist (TransferTask *task)
{
SeafRepo *repo;
BlockList *bl;
repo = seaf_repo_manager_get_repo (seaf->repo_mgr, task->repo_id);
if (!repo && !task->is_clone)
return -1;
if (task->type == TASK_TYPE_UPLOAD) {
bl = load_blocklist_with_local_history (task);
if (!bl) {
seaf_warning ("[tr-mgr]Failed to populate blocklist.\n");
return -1;
}
} else {
SeafCommit *remote;
remote = seaf_commit_manager_get_commit (seaf->commit_mgr,
task->repo_id,
task->repo_version,
task->head);
if (!remote) {
seaf_warning ("[tr-mgr] Failed to find commit %s.\n", task->head);
return -1;
}
if (!task->is_clone) {
/* If we're merging, only get new blocks that need to be checked out.
*/
if (merge_get_new_block_list (repo, remote, &bl) < 0) {
seaf_warning ("[tr-mgr] Failed to get new blocks for merge.\n");
seaf_commit_unref (remote);
return -1;
}
} else {
/* If we're cloning, only get blocks pointed by the lastest commit.
*/
bl = block_list_new ();
if (seaf_fs_manager_populate_blocklist (seaf->fs_mgr,
task->repo_id,
task->repo_version,
remote->root_id,
bl) < 0) {
seaf_warning ("[tr-mgr] Failed to get blocks of commit %s.\n",
remote->commit_id);
seaf_commit_unref (remote);
return -1;
}
}
seaf_commit_unref (remote);
g_return_val_if_fail (bl != NULL, -1);
}
task->block_list = bl;