// remove file
gboolean dir_tree_file_remove (DirTree *dtree, fuse_ino_t ino, DirTree_file_remove_cb file_remove_cb, fuse_req_t req)
{
DirEntry *en;
FileRemoveData *data;
LOG_debug (DIR_TREE_LOG, "Removing inode %"INO_FMT, ino);
en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (ino));
// if entry does not exist
// or it's not a directory type ?
if (!en) {
LOG_err (DIR_TREE_LOG, "Entry (ino = %"INO_FMT") not found !", ino);
file_remove_cb (req, FALSE);
return FALSE;
}
if (en->type != DET_file) {
LOG_err (DIR_TREE_LOG, "Entry (ino = %"INO_FMT") is not a file !", ino);
file_remove_cb (req, FALSE);
return FALSE;
}
data = g_new0 (FileRemoveData, 1);
data->dtree = dtree;
data->ino = ino;
data->en = en;
data->file_remove_cb = file_remove_cb;
data->req = req;
s3client_pool_get_client (application_get_ops_client_pool (dtree->app),
dir_tree_file_remove_on_http_client_cb, data);
return TRUE;
}
static void fileio_write_on_multipart_init_cb (HttpConnection *con, void *ctx, gboolean success,
const gchar *buf, size_t buf_len,
G_GNUC_UNUSED struct evkeyvalq *headers)
{
FileWriteData *wdata = (FileWriteData *) ctx;
gchar *uploadid;
http_connection_release (con);
wdata->fop->multipart_initiated = TRUE;
if (!success || !buf_len) {
LOG_err (FIO_LOG, INO_CON_H"Failed to get multipart init data from the server !", INO_T (wdata->ino), con);
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
uploadid = get_uploadid (buf, buf_len);
if (!uploadid) {
LOG_err (FIO_LOG, INO_CON_H"Failed to parse multipart init data!", INO_T (wdata->ino), con);
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
wdata->fop->uploadid = g_strdup (uploadid);
xmlFree (uploadid);
// done, resume uploading part
wdata->fop->part_number = 1;
fileio_write_send_part (wdata);
}
gboolean s3http_connection_file_send (S3HttpConnection *con, int fd, const gchar *resource_path,
S3HttpConnection_on_entry_sent_cb on_entry_sent_cb, gpointer ctx)
{
gchar *req_path;
gboolean res;
FileSendData *data;
struct evbuffer *output_buf = NULL;
struct stat st;
data = g_new0 (FileSendData, 1);
data->on_entry_sent_cb = on_entry_sent_cb;
data->ctx = ctx;
LOG_debug (CON_SEND_LOG, "Sending file.. %p", data);
if (fstat (fd, &st) < 0) {
LOG_err (CON_SEND_LOG, "Failed to stat temp file !");
s3http_connection_on_file_send_error (con, (void *) data);
return FALSE;
}
output_buf = evbuffer_new ();
if (!output_buf || evbuffer_add_file (output_buf, fd, 0, st.st_size) < 0) {
LOG_err (CON_SEND_LOG, "Failed to read temp file !");
s3http_connection_on_file_send_error (con, (void *) data);
if (output_buf)
evbuffer_free (output_buf);
return FALSE;
}
req_path = g_strdup_printf ("%s", resource_path);
LOG_debug (CON_SEND_LOG, "[%p %p] Sending %s file, req: %s, %"OFF_FMT" buff: %zd", con, data,
resource_path, req_path, st.st_size, evbuffer_get_length (output_buf));
res = s3http_connection_make_request (con,
resource_path, req_path, "PUT",
output_buf,
s3http_connection_on_file_send_done,
s3http_connection_on_file_send_error,
data
);
g_free (req_path);
evbuffer_free (output_buf);
if (!res) {
LOG_err (CON_SEND_LOG, "Failed to create HTTP request !");
s3http_connection_on_file_send_error (con, (void *) data);
return FALSE;
}
return TRUE;
}
// create S3HttpConnection object
// establish HTTP connections to S3
gpointer s3http_connection_create (Application *app)
{
S3HttpConnection *con;
int port;
AppConf *conf;
con = g_new0 (S3HttpConnection, 1);
if (!con) {
LOG_err (CON_LOG, "Failed to create S3HttpConnection !");
return NULL;
}
conf = application_get_conf (app);
con->app = app;
con->bucket_name = g_strdup (application_get_bucket_name (app));
con->is_acquired = FALSE;
port = application_get_port (app);
// if no port is specified, libevent returns -1
if (port == -1) {
port = conf->http_port;
}
LOG_debug (CON_LOG, "Connecting to %s:%d",
application_get_host (app),
port
);
// XXX: implement SSL
con->evcon = evhttp_connection_base_new (
application_get_evbase (app),
application_get_dnsbase (app),
application_get_host (app),
port
);
if (!con->evcon) {
LOG_err (CON_LOG, "Failed to create evhttp_connection !");
return NULL;
}
evhttp_connection_set_timeout (con->evcon, conf->timeout);
evhttp_connection_set_retries (con->evcon, conf->retries);
evhttp_connection_set_closecb (con->evcon, s3http_connection_on_close, con);
return (gpointer)con;
}
static void fileio_release_complete_multipart (FileIO *fop)
{
if (!fop->uploadid) {
LOG_err (FIO_LOG, INO_H"UploadID is not set, aborting operation !", INO_T (fop->ino));
fileio_destroy (fop);
return;
}
if (!client_pool_get_client (application_get_write_client_pool (fop->app),
fileio_release_on_complete_con_cb, fop)) {
LOG_err (FIO_LOG, INO_H"Failed to get HTTP client !", INO_T (fop->ino));
fileio_destroy (fop);
return;
}
}
static GHashTable *bvalue_parse_dict (struct evbuffer *in)
{
GHashTable *h_dict = NULL;
gchar tmp[1];
gchar c;
BValue *key;
gchar *key_str;
BValue *value;
size_t len;
// remove "d"
evbuffer_remove (in, tmp, 1);
evbuffer_copyout (in, &c, 1);
len = evbuffer_get_length (in);
h_dict = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, bvalue_dict_item_free);
while (c != 'e' && len > 1) {
key = bvalue_create_from_buff (in);
if (!bvalue_is_string (key)) {
LOG_err (B_LOG, "Failed parsing Bencode Dict !");
//XXX
return NULL;
}
key_str = bvalue_get_string (key);
if (!key_str) {
LOG_err (B_LOG, "Failed parsing Bencode Dict !");
//XXX
return NULL;
}
value = bvalue_create_from_buff (in);
g_hash_table_insert (h_dict, g_strdup (key_str), value);
bvalue_destroy (key);
len = evbuffer_get_length (in);
evbuffer_copyout (in, &c, 1);
}
// remove "e"
evbuffer_remove (in, tmp, 1);
return h_dict;
}
/*{{{ create / destroy */
CacheMng *cache_mng_create (Application *app)
{
CacheMng *cmng;
cmng = g_new0 (CacheMng, 1);
cmng->app = app;
cmng->h_entries = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, cache_entry_destroy);
cmng->q_lru = g_queue_new ();
cmng->size = 0;
cmng->check_time = time (NULL);
cmng->max_size = conf_get_uint (application_get_conf (cmng->app), "filesystem.cache_dir_max_size");
cmng->cache_dir = g_strdup_printf ("%s/%s",
conf_get_string (application_get_conf (cmng->app), "filesystem.cache_dir"), CACHE_MNGR_DIR);
cmng->cache_hits = 0;
cmng->cache_miss = 0;
cache_mng_rm_cache_dir (cmng);
if (g_mkdir_with_parents (cmng->cache_dir, 0700) != 0) {
LOG_err (CMNG_LOG, "Failed to remove directory: %s", cmng->cache_dir);
cache_mng_destroy (cmng);
return NULL;
}
return cmng;
}
// replies on bucket versioning information
static void application_on_bucket_versioning_cb (gpointer ctx, gboolean success,
const gchar *buf, size_t buf_len)
{
Application *app = (Application *)ctx;
gchar *tmp;
if (!success) {
LOG_err (APP_LOG, "Failed to get bucket versioning!");
application_exit (app);
return;
}
if (buf_len > 1) {
tmp = (gchar *)buf;
tmp[buf_len - 1] = '\0';
if (strstr (buf, "<Status>Enabled</Status>")) {
LOG_debug (APP_LOG, "Bucket has versioning enabled !");
conf_set_boolean (app->conf, "s3.versioning", TRUE);
} else {
LOG_debug (APP_LOG, "Bucket has versioning disabled !");
conf_set_boolean (app->conf, "s3.versioning", FALSE);
}
} else {
conf_set_boolean (app->conf, "s3.versioning", FALSE);
}
application_finish_initialization_and_run (app);
}
// if it's the first fuse read() request - send HEAD request to server
// else try to get data from local cache, otherwise download from the server
void fileio_read_buffer (FileIO *fop,
size_t size, off_t off, fuse_ino_t ino,
FileIO_on_buffer_read_cb on_buffer_read_cb, gpointer ctx)
{
FileReadData *rdata;
rdata = g_new0 (FileReadData, 1);
rdata->fop = fop;
rdata->size = size;
rdata->off = off;
rdata->ino = ino;
rdata->on_buffer_read_cb = on_buffer_read_cb;
rdata->ctx = ctx;
rdata->request_offset = off;
// send HEAD request first
if (!rdata->fop->head_req_sent) {
// get HTTP connection to download manifest or a full file
if (!client_pool_get_client (application_get_read_client_pool (rdata->fop->app), fileio_read_on_head_con_cb, rdata)) {
LOG_err (FIO_LOG, INO_H"Failed to get HTTP client !", INO_T (rdata->ino));
rdata->on_buffer_read_cb (rdata->ctx, FALSE, NULL, 0);
g_free (rdata);
}
// HEAD is sent, try to get data from cache
} else {
fileio_read_get_buf (rdata);
}
}
/*{{{ GET request */
static void fileio_read_on_get_cb (HttpConnection *con, void *ctx, gboolean success,
const gchar *buf, size_t buf_len,
G_GNUC_UNUSED struct evkeyvalq *headers)
{
FileReadData *rdata = (FileReadData *) ctx;
const char *versioning_header = NULL;
// release HttpConnection
http_connection_release (con);
if (!success) {
LOG_err (FIO_LOG, INO_CON_H"Failed to get file from server !", INO_T (rdata->ino), con);
rdata->on_buffer_read_cb (rdata->ctx, FALSE, NULL, 0);
g_free (rdata);
return;
}
// store it in the local cache
cache_mng_store_file_buf (application_get_cache_mng (rdata->fop->app),
rdata->ino, buf_len, rdata->request_offset, (unsigned char *) buf,
NULL, NULL);
// update version ID
versioning_header = http_find_header (headers, "x-amz-version-id");
if (versioning_header) {
cache_mng_update_version_id (application_get_cache_mng (rdata->fop->app), rdata->ino, versioning_header);
}
LOG_debug (FIO_LOG, INO_H"Storing [%"G_GUINT64_FORMAT" %zu]", INO_T(rdata->ino), rdata->request_offset, buf_len);
// and read it
fileio_read_get_buf (rdata);
}
// got HttpConnection object
static void fileio_write_on_multipart_init_con_cb (gpointer client, gpointer ctx)
{
HttpConnection *con = (HttpConnection *) client;
FileWriteData *wdata = (FileWriteData *) ctx;
gboolean res;
gchar *path;
http_connection_acquire (con);
path = g_strdup_printf ("%s?uploads", wdata->fop->fname);
// send storage class with the init request
http_connection_add_output_header (con, "x-amz-storage-class", conf_get_string (application_get_conf (con->app), "s3.storage_type"));
res = http_connection_make_request (con,
path, "POST", NULL, TRUE, NULL,
fileio_write_on_multipart_init_cb,
wdata
);
g_free (path);
if (!res) {
LOG_err (FIO_LOG, INO_CON_H"Failed to create HTTP request !", INO_T (wdata->ino), con);
http_connection_release (con);
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
}
// buffer is sent
static void fileio_write_on_send_cb (HttpConnection *con, void *ctx, gboolean success,
G_GNUC_UNUSED const gchar *buf, G_GNUC_UNUSED size_t buf_len,
G_GNUC_UNUSED struct evkeyvalq *headers)
{
FileWriteData *wdata = (FileWriteData *) ctx;
const char *versioning_header;
http_connection_release (con);
if (!success) {
LOG_err (FIO_LOG, INO_CON_H"Failed to send bufer to server !", INO_T (wdata->ino), con);
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
versioning_header = http_find_header (headers, "x-amz-version-id");
if (versioning_header) {
cache_mng_update_version_id (application_get_cache_mng (wdata->fop->app),
wdata->ino, versioning_header);
}
// empty part buffer
evbuffer_drain (wdata->fop->write_buf, -1);
// done sending part
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, TRUE, wdata->buf_size);
g_free (wdata);
}
// file is sent
static void fileio_release_on_part_sent_cb (HttpConnection *con, void *ctx, gboolean success,
G_GNUC_UNUSED const gchar *buf, G_GNUC_UNUSED size_t buf_len,
G_GNUC_UNUSED struct evkeyvalq *headers)
{
FileIO *fop = (FileIO *) ctx;
const gchar *versioning_header;
http_connection_release (con);
if (!success) {
LOG_err (FIO_LOG, INO_CON_H"Failed to send bufer to server !", INO_T (fop->ino), con);
fileio_destroy (fop);
return;
}
versioning_header = http_find_header (headers, "x-amz-version-id");
if (versioning_header) {
cache_mng_update_version_id (application_get_cache_mng (fop->app),
fop->ino, versioning_header);
}
// if it's a multi part upload - Complete Multipart Upload
if (fop->multipart_initiated) {
fileio_release_complete_multipart (fop);
// or we are done
} else {
fileio_release_update_headers (fop);
//fileio_destroy (fop);
}
}
// multipart is sent
static void fileio_release_on_complete_cb (HttpConnection *con, void *ctx, gboolean success,
G_GNUC_UNUSED const gchar *buf, G_GNUC_UNUSED size_t buf_len,
G_GNUC_UNUSED struct evkeyvalq *headers)
{
FileIO *fop = (FileIO *) ctx;
const gchar *versioning_header;
http_connection_release (con);
if (!success) {
LOG_err (FIO_LOG, INO_CON_H"Failed to send Multipart data to the server !", INO_T (fop->ino), con);
fileio_destroy (fop);
return;
}
versioning_header = http_find_header (headers, "x-amz-version-id");
if (versioning_header) {
cache_mng_update_version_id (application_get_cache_mng (fop->app),
fop->ino, versioning_header);
}
// done
LOG_debug (FIO_LOG, INO_CON_H"Multipart Upload is done !", INO_T (fop->ino), con);
// fileio_destroy (fop);
fileio_release_update_headers (fop);
}
// HTTP client is ready for a new request
static void dir_tree_file_remove_on_http_client_cb (gpointer client, gpointer ctx)
{
S3HttpConnection *http_con = (S3HttpConnection *) client;
FileRemoveData *data = (FileRemoveData *) ctx;
gchar *req_path;
gboolean res;
s3http_connection_acquire (http_con);
req_path = g_strdup_printf ("%s", data->en->fullpath);
res = s3http_connection_make_request (http_con,
req_path, req_path, "DELETE",
NULL,
dir_tree_file_remove_on_http_client_data_cb,
dir_tree_file_remove_on_http_client_error_cb,
data
);
g_free (req_path);
if (!res) {
LOG_err (DIR_TREE_LOG, "Failed to create HTTP request !");
data->file_remove_cb (data->req, FALSE);
s3http_connection_release (http_con);
g_free (data);
}
}
void http_connection_get_container_meta (HttpConnection *con,
HttpConnection_container_meta_cb container_meta_cb, gpointer ctx)
{
gchar *req_path;
gboolean res;
ContainerMeta *meta;
LOG_debug (CON_CONT, "Getting container meta for: %s", application_get_container_name (con->app));
// acquire HTTP client
http_connection_acquire (con);
meta = g_new0 (ContainerMeta, 1);
meta->ctx = ctx;
meta->container_meta_cb = container_meta_cb;
req_path = g_strdup_printf ("/%s", application_get_container_name (con->app));
res = http_connection_make_request_to_storage_url (con,
req_path, "HEAD", NULL,
http_connection_on_container_meta_cb,
meta
);
g_free (req_path);
if (!res) {
LOG_err (CON_CONT, "Failed to create HTTP request !");
container_meta_cb (ctx, FALSE);
http_connection_release (con);
return;
}
}
static void fileio_simple_download_on_con_cb (gpointer client, gpointer ctx)
{
HttpConnection *con = (HttpConnection *) client;
FileIOSimpleDownload *fsim = (FileIOSimpleDownload *) ctx;
gboolean res;
LOG_debug (FIO_LOG, CON_H"Downloading data.", con);
http_connection_acquire (con);
http_connection_add_output_header (con, "x-amz-storage-class", conf_get_string (application_get_conf (con->app), "s3.storage_type"));
res = http_connection_make_request (con,
fsim->fname, "GET", NULL, TRUE, NULL,
fileio_simple_download_on_sent_cb,
fsim
);
if (!res) {
LOG_err (FIO_LOG, CON_H"Failed to create HTTP request !", con);
http_connection_release (con);
fsim->on_download_cb (fsim->ctx, FALSE, NULL, 0);
fileio_simple_download_destroy (fsim);
return;
}
}
/*{{{ application_set_url*/
gboolean application_set_url (Application *app, const gchar *url)
{
if (app->uri)
evhttp_uri_free (app->uri);
// check if URL contains HTTP or HTTPS
if (strlen (url) < 4 || !strcasestr (url, "http") || strcasestr (url, "http") != url) {
// XXX: check config and decide HTTP or HTTPS ?
gchar *tmp;
tmp = g_strdup_printf ("http://%s", url);
app->uri = evhttp_uri_parse (tmp);
g_free (tmp);
} else
app->uri = evhttp_uri_parse (url);
if (!app->uri) {
LOG_err (APP_LOG, " URL (%s) is not valid!", url);
application_exit (app);
return FALSE;
}
conf_set_string (app->conf, "s3.host", evhttp_uri_get_host (app->uri));
conf_set_int (app->conf, "s3.port", uri_get_port (app->uri));
conf_set_boolean (app->conf, "s3.ssl", uri_is_https (app->uri));
return TRUE;
}
// USR2 signal: reopen log file
static void sigusr2_cb (G_GNUC_UNUSED evutil_socket_t sig, G_GNUC_UNUSED short events, G_GNUC_UNUSED void *user_data)
{
Application *app = _app;
// just flush, if log file name is not specified
if (!app->log_file_name || !app->f_log) {
fflush (app->f_log);
return;
}
LOG_msg (APP_LOG, "Reopening log file: %s !", app->log_file_name);
fflush (app->f_log);
fclose (app->f_log);
app->f_log = fopen (app->log_file_name, "a+");
if (!app->f_log) {
LOG_err (APP_LOG, "Failed to open log file: %s, output goes to stdout. Error: %s", app->log_file_name, strerror (errno));
// XXX: set output to stdout
logger_set_file (stdout);
return;
}
logger_set_file (app->f_log);
}
// existing file is opened, create context data
gboolean dir_tree_file_open (DirTree *dtree, fuse_ino_t ino, struct fuse_file_info *fi,
DirTree_file_open_cb file_open_cb, fuse_req_t req)
{
DirTreeFileOpData *op_data;
DirEntry *en;
op_data = file_op_data_create (dtree, ino);
op_data->c_fi = fi;
op_data->c_req = req;
op_data->file_open_cb = file_open_cb;
en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (ino));
// if entry does not exist
// or it's not a directory type ?
if (!en) {
LOG_msg (DIR_TREE_LOG, "Entry (ino = %"INO_FMT") not found !", ino);
file_open_cb (op_data->c_req, FALSE, op_data->c_fi);
return FALSE;
}
op_data->en = en;
op_data->en->op_data = (gpointer) op_data;
LOG_debug (DIR_TREE_LOG, "[%p %p] dir_tree_open inode %"INO_FMT, op_data, fi, ino);
if (!s3client_pool_get_client (application_get_read_client_pool (dtree->app), dir_tree_file_open_on_http_ready, op_data)) {
LOG_err (DIR_TREE_LOG, "Failed to get S3HttpConnection from the pool !");
}
return TRUE;
}
// file is closed, free context data
void dir_tree_file_release (DirTree *dtree, fuse_ino_t ino, struct fuse_file_info *fi)
{
DirEntry *en;
DirTreeFileOpData *op_data;
LOG_debug (DIR_TREE_LOG, "dir_tree_file_release inode %d", ino);
en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (ino));
// if entry does not exist
// or it's not a directory type ?
if (!en) {
LOG_msg (DIR_TREE_LOG, "Entry (ino = %"INO_FMT") not found !", ino);
//XXX
return;
}
op_data = (DirTreeFileOpData *) en->op_data;
// op_data->en = en;
// op_data->ino = ino;
if (op_data->http)
s3http_client_release (op_data->http);
// releasing written file
if (op_data->tmp_write_fd) {
if (!s3client_pool_get_client (application_get_write_client_pool (dtree->app), dir_tree_file_release_on_http_ready, op_data)) {
LOG_err (DIR_TREE_LOG, "Failed to get S3HttpConnection from the pool !");
}
} else {
file_op_data_destroy (op_data);
}
}
// let it know that directory cache have to be updated
static void dir_tree_entry_modified (DirTree *dtree, DirEntry *en)
{
if (en->type == DET_dir) {
if (en->dir_cache_size) {
g_free (en->dir_cache);
en->dir_cache = NULL;
en->dir_cache_size = 0;
en->dir_cache_created = 0;
}
} else {
DirEntry *parent_en;
parent_en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (en->parent_ino));
if (!parent_en) {
LOG_err (DIR_TREE_LOG, "Parent not found for ino: %"INO_FMT" !", en->ino);
return;
}
if (parent_en->dir_cache_size) {
if (parent_en->dir_cache)
g_free (parent_en->dir_cache);
parent_en->dir_cache = NULL;
parent_en->dir_cache_size = 0;
parent_en->dir_cache_created = 0;
}
// XXX: get parent, update dir cache
}
}
void dir_tree_update_entry (DirTree *dtree, const gchar *path, DirEntryType type,
fuse_ino_t parent_ino, const gchar *entry_name, long long size)
{
DirEntry *parent_en;
DirEntry *en;
LOG_debug (DIR_TREE_LOG, "Updating %s %ld", entry_name, size);
// get parent
parent_en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (parent_ino));
if (!parent_en || parent_en->type != DET_dir) {
LOG_err (DIR_TREE_LOG, "DirEntry is not a directory ! ino: %"INO_FMT, parent_ino);
return;
}
// get child
en = g_hash_table_lookup (parent_en->h_dir_tree, entry_name);
if (en) {
en->age = dtree->current_age;
en->size = size;
} else {
mode_t mode;
if (type == DET_file)
mode = FILE_DEFAULT_MODE;
else
mode = DIR_DEFAULT_MODE;
dir_tree_add_entry (dtree, entry_name, mode,
type, parent_ino, size, time (NULL));
}
}
static void fileio_write_send_part (FileWriteData *wdata)
{
if (!wdata->fop->uploadid) {
LOG_err (FIO_LOG, INO_H"UploadID is not set, aborting operation !", INO_T (wdata->ino));
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
if (!client_pool_get_client (application_get_write_client_pool (wdata->fop->app),
fileio_write_on_send_con_cb, wdata)) {
LOG_err (FIO_LOG, INO_H"Failed to get HTTP client !", INO_T (wdata->ino));
wdata->on_buffer_written_cb (wdata->fop, wdata->ctx, FALSE, 0);
g_free (wdata);
return;
}
}
static void cache_mng_rm_cache_dir (CacheMng *cmng)
{
if (cmng->cache_dir && strstr (cmng->cache_dir, CACHE_MNGR_DIR))
utils_del_tree (cmng->cache_dir, 1);
else {
LOG_err (CMNG_LOG, "Cache directory not found: %s", cmng->cache_dir);
}
}
GList *bvalue_get_list (BValue *bval)
{
if (!bvalue_is_list (bval)) {
LOG_err (B_LOG, "BValue is not a list !");
return NULL;
}
return bval->value.list;
}
static void sigsegv_cb (int sig_num, siginfo_t *info, void * ucontext)
{
void *array[50];
void *caller_address;
char **messages;
int size, i;
sig_ucontext_t *uc;
FILE *f;
g_fprintf (stderr, "Got segmentation fault !\n");
// haven't found the way to get caller addr on FreeBSD, and we need to link with -lexecinfo
#if !defined(__FreeBSD__)
uc = (sig_ucontext_t *)ucontext;
/* Get the address at the time the signal was raised from the EIP (x86) */
#if defined(__APPLE__)
#ifdef __i368__
caller_address = (void *) uc->uc_mcontext->__ss.__eip;
#else
caller_address = (void *) uc->uc_mcontext->__ss.__rip;
#endif
#else /* !__APPLE__ */
#ifdef __i386__
caller_address = (void *) uc->uc_mcontext.eip;
#else
caller_address = (void *) uc->uc_mcontext.rip;
#endif
#endif /* !__APPLE__ */
f = stderr;
fprintf (f, "signal %d (%s), address is %p from %p\n", sig_num, strsignal (sig_num), info->si_addr, (void *)caller_address);
size = backtrace (array, 50);
/* overwrite sigaction with caller's address */
array[1] = caller_address;
messages = backtrace_symbols (array, size);
/* skip first stack frame (points here) */
for (i = 1; i < size && messages != NULL; ++i) {
fprintf (f, "[bt]: (%d) %s\n", i, messages[i]);
}
fflush (f);
free (messages);
LOG_err (APP_LOG, "signal %d (%s), address is %p from %p\n", sig_num, strsignal (sig_num), info->si_addr, (void *)caller_address);
#endif // __FreeBSD__
// try to unmount FUSE mountpoint
if (_app && _app->rfuse)
rfuse_destroy (_app->rfuse);
}
// same as SIGINT
static void sigterm_cb (G_GNUC_UNUSED evutil_socket_t sig, G_GNUC_UNUSED short events, void *user_data)
{
Application *app = (Application *) user_data;
LOG_err (APP_LOG, "Got SIGTERM");
// terminate after running all active events
application_exit (app);
}
// remove all entries which age is less than current
void dir_tree_stop_update (DirTree *dtree, fuse_ino_t parent_ino)
{
DirEntry *parent_en;
parent_en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (parent_ino));
if (!parent_en || parent_en->type != DET_dir) {
LOG_err (DIR_TREE_LOG, "DirEntry is not a directory ! ino: %"INO_FMT, parent_ino);
return;
}
LOG_debug (DIR_TREE_LOG, "Removing old DirEntries for: %s ..", parent_en->fullpath);
if (parent_en->type != DET_dir) {
LOG_err (DIR_TREE_LOG, "Parent is not a directory !");
return;
}
g_hash_table_foreach_remove (parent_en->h_dir_tree, dir_tree_stop_update_on_remove_child_cb, dtree);
}
// create and add a new entry (file or dir) to DirTree
static DirEntry *dir_tree_add_entry (DirTree *dtree, const gchar *basename, mode_t mode,
DirEntryType type, fuse_ino_t parent_ino, off_t size, time_t ctime)
{
DirEntry *en;
DirEntry *parent_en = NULL;
en = g_new0 (DirEntry, 1);
// get the parent, for inodes > 0
if (parent_ino) {
parent_en = g_hash_table_lookup (dtree->h_inodes, GUINT_TO_POINTER (parent_ino));
if (!parent_en) {
LOG_err (DIR_TREE_LOG, "Parent not found for ino: %llu !", parent_ino);
return NULL;
}
// update directory buffer
dir_tree_entry_modified (dtree, parent_en);
if (parent_ino == 1)
en->fullpath = g_strdup_printf ("/%s", basename);
else
en->fullpath = g_strdup_printf ("%s/%s", parent_en->fullpath, basename);
} else {
en->fullpath = g_strdup ("/");
}
en->ino = dtree->max_ino++;
en->age = dtree->current_age;
en->basename = g_strdup (basename);
en->mode = mode;
en->size = size;
en->parent_ino = parent_ino;
en->type = type;
en->ctime = ctime;
en->is_modified = FALSE;
// cache is empty
en->dir_cache = NULL;
en->dir_cache_size = 0;
en->dir_cache_created = 0;
LOG_debug (DIR_TREE_LOG, "Creating new DirEntry: %s, inode: %d, fullpath: %s, mode: %d", en->basename, en->ino, en->fullpath, en->mode);
if (type == DET_dir) {
en->h_dir_tree = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, dir_entry_destroy);
}
// add to global inode hash
g_hash_table_insert (dtree->h_inodes, GUINT_TO_POINTER (en->ino), en);
// add to the parent's hash
if (parent_ino)
g_hash_table_insert (parent_en->h_dir_tree, en->basename, en);
return en;
}
