/*
This file is part of GNUnet.
- (C) 2001-2012 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2001-2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
GNUNET_FS_dequeue_ (dc->job_queue);
dc->job_queue = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != dc->task)
+ if (NULL != dc->task)
{
GNUNET_SCHEDULER_cancel (dc->task);
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
}
if (NULL != dc->rfh)
{
return;
if (dr->depth > 0)
{
+ if ( (dc->offset > 0) ||
+ (dc->length < GNUNET_ntohll (dc->uri->data.chk.file_length)) )
+ {
+ /* NOTE: this test is not tight, but should suffice; the issue
+ here is that 'dr->num_children' may inherently only specify a
+ smaller range than what is in the original file;
+ thus, reconstruction of (some) inner blocks will fail.
+ FIXME: we might eventually want to write a tighter test to
+ maximize the circumstances under which we do succeed with
+ IBlock reconstruction. (need good tests though). */
+ return;
+ }
complete = GNUNET_YES;
for (i = 0; i < dr->num_children; i++)
{
}
/* write block to disk */
fn = (NULL != dc->filename) ? dc->filename : dc->temp_filename;
- fh = GNUNET_DISK_file_open (fn,
- GNUNET_DISK_OPEN_READWRITE |
- GNUNET_DISK_OPEN_CREATE |
- GNUNET_DISK_OPEN_TRUNCATE,
- GNUNET_DISK_PERM_USER_READ |
- GNUNET_DISK_PERM_USER_WRITE |
- GNUNET_DISK_PERM_GROUP_READ |
- GNUNET_DISK_PERM_OTHER_READ);
- if (NULL == fh)
+ if (NULL != fn)
{
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn);
- GNUNET_asprintf (&dc->emsg, _("Failed to open file `%s' for writing"),
- fn);
- GNUNET_DISK_file_close (fh);
- dr->state = BRS_ERROR;
- pi.status = GNUNET_FS_STATUS_DOWNLOAD_ERROR;
- pi.value.download.specifics.error.message = dc->emsg;
- GNUNET_FS_download_make_status_ (&pi, dc);
- return;
- }
- if (data_len != GNUNET_DISK_file_write (fh, odata, odata_len))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "write", fn);
- GNUNET_asprintf (&dc->emsg, _("Failed to open file `%s' for writing"),
- fn);
+ fh = GNUNET_DISK_file_open (fn,
+ GNUNET_DISK_OPEN_READWRITE |
+ GNUNET_DISK_OPEN_CREATE |
+ GNUNET_DISK_OPEN_TRUNCATE,
+ GNUNET_DISK_PERM_USER_READ |
+ GNUNET_DISK_PERM_USER_WRITE |
+ GNUNET_DISK_PERM_GROUP_READ |
+ GNUNET_DISK_PERM_OTHER_READ);
+ if (NULL == fh)
+ {
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn);
+ GNUNET_asprintf (&dc->emsg,
+ _("Failed to open file `%s' for writing"),
+ fn);
+ GNUNET_DISK_file_close (fh);
+ dr->state = BRS_ERROR;
+ pi.status = GNUNET_FS_STATUS_DOWNLOAD_ERROR;
+ pi.value.download.specifics.error.message = dc->emsg;
+ GNUNET_FS_download_make_status_ (&pi, dc);
+ return;
+ }
+ if (data_len != GNUNET_DISK_file_write (fh, odata, odata_len))
+ {
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "write", fn);
+ GNUNET_asprintf (&dc->emsg, _("Failed to open file `%s' for writing"),
+ fn);
+ GNUNET_DISK_file_close (fh);
+ dr->state = BRS_ERROR;
+ pi.status = GNUNET_FS_STATUS_DOWNLOAD_ERROR;
+ pi.value.download.specifics.error.message = dc->emsg;
+ GNUNET_FS_download_make_status_ (&pi, dc);
+ return;
+ }
GNUNET_DISK_file_close (fh);
- dr->state = BRS_ERROR;
- pi.status = GNUNET_FS_STATUS_DOWNLOAD_ERROR;
- pi.value.download.specifics.error.message = dc->emsg;
- GNUNET_FS_download_make_status_ (&pi, dc);
- return;
}
- GNUNET_DISK_file_close (fh);
/* signal success */
dr->state = BRS_DOWNLOAD_UP;
dc->completed = dc->length;
drc = dr->children[i];
GNUNET_assert (drc->offset >= dr->offset);
child_block_size = GNUNET_FS_tree_compute_tree_size (drc->depth);
- GNUNET_assert (0 == (drc->offset - dr->offset) % child_block_size);
+ GNUNET_assert (0 == (drc->offset - dr->offset) % child_block_size);
if (BRS_INIT == drc->state)
{
drc->state = BRS_CHK_SET;
* @param cls closure (our 'struct ProcessResultClosure')
* @param key query for the given value / request
* @param value value in the hash map (a 'struct DownloadRequest')
- * @return GNUNET_YES (we should continue to iterate); unless serious error
+ * @return #GNUNET_YES (we should continue to iterate); unless serious error
*/
static int
process_result_with_request (void *cls, const struct GNUNET_HashCode * key,
pi.value.download.specifics.progress.respect_offered = prc->respect_offered;
pi.value.download.specifics.progress.num_transmissions = prc->num_transmissions;
if (prc->last_transmission.abs_value_us != GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us)
- pi.value.download.specifics.progress.block_download_duration
+ pi.value.download.specifics.progress.block_download_duration
= GNUNET_TIME_absolute_get_duration (prc->last_transmission);
else
pi.value.download.specifics.progress.block_download_duration
struct GNUNET_FS_DownloadContext *dc = cls;
struct GNUNET_CLIENT_Connection *client;
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
client = GNUNET_CLIENT_connect ("fs", dc->h->cfg);
if (NULL == client)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Will try to reconnect in %s\n",
GNUNET_STRINGS_relative_time_to_string (dc->reconnect_backoff, GNUNET_YES));
dc->task =
- GNUNET_SCHEDULER_add_delayed (dc->reconnect_backoff,
+ GNUNET_SCHEDULER_add_delayed (dc->reconnect_backoff,
&do_reconnect,
dc);
}
/**
* We must stop to ask the FS service for our blocks. Pause the download.
*
- * @param cls the 'struct GNUNET_FS_DownloadContext'
+ * @param cls the `struct GNUNET_FS_DownloadContext`
*/
static void
deactivate_fs_download (void *cls)
* the specified depth
*/
static struct DownloadRequest *
-create_download_request (struct DownloadRequest *parent,
+create_download_request (struct DownloadRequest *parent,
unsigned int chk_idx,
unsigned int depth,
uint64_t dr_offset, uint64_t file_start_offset,
unsigned int head_skip;
uint64_t child_block_size;
- dr = GNUNET_malloc (sizeof (struct DownloadRequest));
+ dr = GNUNET_new (struct DownloadRequest);
dr->parent = parent;
dr->depth = depth;
dr->offset = dr_offset;
if (0 == depth)
return dr;
child_block_size = GNUNET_FS_tree_compute_tree_size (depth - 1);
-
+
/* calculate how many blocks at this level are not interesting
* from the start (rounded down), either because of the requested
* file offset or because this IBlock is further along */
{
head_skip = 0;
}
-
+
/* calculate index of last block at this level that is interesting (rounded up) */
dr->num_children = (file_start_offset + desired_length - dr_offset) / child_block_size;
if (dr->num_children * child_block_size <
(unsigned long long) dr_offset,
depth,
dr->num_children);
-
+
/* now we can get the total number of *interesting* children for this block */
/* why else would we have gotten here to begin with? (that'd be a bad logic error) */
GNUNET_assert (dr->num_children > 0);
-
+
dr->children =
GNUNET_malloc (dr->num_children * sizeof (struct DownloadRequest *));
for (i = 0; i < dr->num_children; i++)
{
struct GNUNET_FS_DownloadContext *dc = cls;
- /* clean up state from tree encoder */
- if (dc->task != GNUNET_SCHEDULER_NO_TASK)
+ /* clean up state from tree encoder */
+ if (dc->task != NULL)
{
GNUNET_SCHEDULER_cancel (dc->task);
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
}
if (NULL != dc->rfh)
{
{
struct GNUNET_FS_DownloadContext *dc = cls;
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
GNUNET_FS_tree_encoder_next (dc->te);
}
struct GNUNET_DISK_FileHandle *fh;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Start task running...\n");
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
if (0 == dc->length)
{
/* no bytes required! */
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Trying bottom-up reconstruction of file `%s'\n", dc->filename);
dc->te =
- GNUNET_FS_tree_encoder_create (dc->h,
+ GNUNET_FS_tree_encoder_create (dc->h,
GNUNET_FS_uri_chk_get_file_size (dc->uri),
dc, &fh_reader,
&reconstruct_cb, NULL,
if (NULL != dc->parent)
GNUNET_CONTAINER_DLL_remove (dc->parent->child_head, dc->parent->child_tail,
dc);
- if (GNUNET_SCHEDULER_NO_TASK != dc->task)
+ if (NULL != dc->task)
{
GNUNET_SCHEDULER_cancel (dc->task);
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
}
pi.status = GNUNET_FS_STATUS_DOWNLOAD_SUSPEND;
GNUNET_FS_download_make_status_ (&pi, dc);
GNUNET_break (0);
return NULL;
}
- dc = GNUNET_malloc (sizeof (struct GNUNET_FS_DownloadContext));
+ dc = GNUNET_new (struct GNUNET_FS_DownloadContext);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Starting download %p, %u bytes at offset %llu\n",
dc,
else
dc->temp_filename = GNUNET_DISK_mktemp ("gnunet-directory-download-tmp");
}
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Starting download `%s' of %llu bytes with tree depth %u\n",
filename,
(unsigned long long) length,
{
GNUNET_FS_download_stop (sr->probe_ctx, GNUNET_YES);
sr->probe_ctx = NULL;
- }
- if (GNUNET_SCHEDULER_NO_TASK != sr->probe_ping_task)
- {
- GNUNET_SCHEDULER_cancel (sr->probe_ping_task);
- sr->probe_ping_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_FS_stop_probe_ping_task_ (sr);
}
return dc;
}
GNUNET_FS_queue_ (dc->h, &activate_fs_download, &deactivate_fs_download,
dc, (dc->length + DBLOCK_SIZE - 1) / DBLOCK_SIZE,
(0 == (dc->options & GNUNET_FS_DOWNLOAD_IS_PROBE))
- ? GNUNET_FS_QUEUE_PRIORITY_NORMAL
+ ? GNUNET_FS_QUEUE_PRIORITY_NORMAL
: GNUNET_FS_QUEUE_PRIORITY_PROBE);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Download %p put into queue as job %p\n",
dc->job_queue);
}
+/**
+ * Suspend a download.
+ *
+ * @param dc handle for the download
+ */
+void
+GNUNET_FS_download_suspend (struct GNUNET_FS_DownloadContext *dc)
+{
+ deactivate_fs_download(dc);
+}
+
+/**
+ * Resume a suspended download.
+ *
+ * @param dc handle for the download
+ */
+void
+GNUNET_FS_download_resume (struct GNUNET_FS_DownloadContext *dc)
+{
+ struct GNUNET_FS_ProgressInfo pi;
+
+ pi.status = GNUNET_FS_STATUS_DOWNLOAD_ACTIVE;
+ GNUNET_FS_download_make_status_ (&pi, dc);
+
+ dc->job_queue =
+ GNUNET_FS_queue_ (dc->h, &activate_fs_download, &deactivate_fs_download,
+ dc, (dc->length + DBLOCK_SIZE - 1) / DBLOCK_SIZE,
+ (0 == (dc->options & GNUNET_FS_DOWNLOAD_IS_PROBE))
+ ? GNUNET_FS_QUEUE_PRIORITY_NORMAL
+ : GNUNET_FS_QUEUE_PRIORITY_PROBE);
+
+}
+
/**
* Stop a download (aborts if download is incomplete).
if (NULL != dc->top)
GNUNET_FS_end_top (dc->h, dc->top);
- if (GNUNET_SCHEDULER_NO_TASK != dc->task)
+ if (NULL != dc->task)
{
GNUNET_SCHEDULER_cancel (dc->task);
- dc->task = GNUNET_SCHEDULER_NO_TASK;
+ dc->task = NULL;
}
search_was_null = (NULL == dc->search);
if (NULL != dc->search)
projects / oweals / gnunet.git / blobdiff