Context for controlling a download. More...

#include </home/buildbot/bb-worker/worker/gnunet_firefly/build/src/service/fs/fs_api.h>

Collaboration diagram for GNUNET_FS_DownloadContext:

Data Fields
struct GNUNET_FS_Handle *	h
	Global FS context. More...

struct TopLevelActivity *	top
	Our top-level activity entry (if we are top-level, otherwise NULL). More...

struct GNUNET_MQ_Handle *	mq
	Connection to the FS service. More...

struct GNUNET_FS_DownloadContext *	parent
	Parent download (used when downloading files in directories). More...

struct GNUNET_FS_SearchResult *	search
	Associated search (used when downloading files based on search results), or NULL for none. More...

struct GNUNET_FS_DownloadContext *	child_head
	Head of list of child downloads. More...

struct GNUNET_FS_DownloadContext *	child_tail
	Tail of list of child downloads. More...

struct GNUNET_FS_DownloadContext *	prev
	Previous download belonging to the same parent. More...

struct GNUNET_FS_DownloadContext *	next
	Next download belonging to the same parent. More...

void *	client_info
	Context kept for the client. More...

struct GNUNET_FS_Uri *	uri
	URI that identifies the file that we are downloading. More...

struct GNUNET_FS_MetaData *	meta
	Known meta-data for the file (can be NULL). More...

char *	emsg
	Error message, NULL if we're doing OK. More...

char *	serialization
	Random portion of filename we use for syncing state of this download. More...

char *	filename
	Where are we writing the data (name of the file, can be NULL!). More...

char *	temp_filename
	Where are we writing the data temporarily (name of the file, can be NULL!); used if we do not have a permanent name and we are a directory and we do a recursive download. More...

struct GNUNET_FS_QueueEntry *	job_queue
	Our entry in the job queue. More...

struct GNUNET_FS_TreeEncoder *	te
	Tree encoder used for the reconstruction. More...

struct GNUNET_DISK_FileHandle *	rfh
	File handle for reading data from an existing file (to pass to tree encoder). More...

struct GNUNET_CONTAINER_MultiHashMap *	active
	Map of active requests (those waiting for a response). More...

struct DownloadRequest *	top_request
	Top-level download request. More...

struct GNUNET_PeerIdentity	target
	Identity of the peer having the content, or all-zeros if we don't know of such a peer. More...

struct GNUNET_SCHEDULER_Task *	task
	ID of a task that is using this struct and that must be cancelled when the download is being stopped (if not NULL). More...

uint64_t	offset
	What is the first offset that we're interested in? More...

uint64_t	length
	How many bytes starting from offset are desired? This is NOT the overall length of the file! More...

uint64_t	completed
	How many bytes have we already received within the specified range (DBlocks only). More...

uint64_t	old_file_size
	What was the size of the file on disk that we're downloading before we started? Used to detect if there is a point in checking an existing block on disk for matching the desired content. More...

struct GNUNET_TIME_Absolute	start_time
	Time download was started. More...

struct GNUNET_TIME_Relative	reconnect_backoff
	How long to wait before we try to reconnect to FS service? More...

uint32_t	anonymity
	Desired level of anonymity. More...

unsigned int	treedepth
	The depth of the file-tree. More...

enum GNUNET_FS_DownloadOptions	options
	Options for the download. More...

int	has_finished
	Flag set upon transitive completion (includes child downloads). More...

int	issue_requests
	Are we ready to issue requests (reconstructions are finished)? More...

Detailed Description

Context for controlling a download.

Definition at line 1743 of file fs_api.h.

Field Documentation

◆ h

struct GNUNET_FS_Handle* GNUNET_FS_DownloadContext::h

Global FS context.

Definition at line 1748 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), deserialize_subdownload(), do_reconnect(), get_download_sync_filename(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_resume(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), search_result_stop(), and trigger_recursive_download().

◆ top

struct TopLevelActivity* GNUNET_FS_DownloadContext::top

Our top-level activity entry (if we are top-level, otherwise NULL).

Definition at line 1753 of file fs_api.h.

Referenced by deserialize_download(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start(), GNUNET_FS_download_stop(), and search_result_stop().

◆ mq

struct GNUNET_MQ_Handle* GNUNET_FS_DownloadContext::mq

Connection to the FS service.

Definition at line 1758 of file fs_api.h.

Referenced by activate_fs_download(), deactivate_fs_download(), do_reconnect(), download_mq_error_handler(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_start_downloading_(), process_result_with_request(), retry_entry(), schedule_block_download(), and try_reconnect().

◆ parent

struct GNUNET_FS_DownloadContext* GNUNET_FS_DownloadContext::parent

Parent download (used when downloading files in directories).

Definition at line 1764 of file fs_api.h.

Referenced by check_completed(), deserialize_download(), deserialize_subdownload(), get_download_sync_filename(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start(), and GNUNET_FS_download_stop().

◆ search

struct GNUNET_FS_SearchResult* GNUNET_FS_DownloadContext::search

Associated search (used when downloading files based on search results), or NULL for none.

Definition at line 1770 of file fs_api.h.

Referenced by deserialize_download(), get_download_sync_filename(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_from_search(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), and search_result_stop().

◆ child_head

struct GNUNET_FS_DownloadContext* GNUNET_FS_DownloadContext::child_head

Head of list of child downloads.

Definition at line 1775 of file fs_api.h.

Referenced by check_completed(), deserialize_download(), free_download_context(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start(), GNUNET_FS_download_stop(), signal_download_resume(), and trigger_recursive_download().

◆ child_tail

struct GNUNET_FS_DownloadContext* GNUNET_FS_DownloadContext::child_tail

Tail of list of child downloads.

Definition at line 1780 of file fs_api.h.

Referenced by deserialize_download(), free_download_context(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start(), and GNUNET_FS_download_stop().

◆ prev

struct GNUNET_FS_DownloadContext* GNUNET_FS_DownloadContext::prev

Previous download belonging to the same parent.

Definition at line 1785 of file fs_api.h.

◆ next

struct GNUNET_FS_DownloadContext* GNUNET_FS_DownloadContext::next

Next download belonging to the same parent.

Definition at line 1790 of file fs_api.h.

Referenced by check_completed(), signal_download_resume(), and trigger_recursive_download().

◆ client_info

void* GNUNET_FS_DownloadContext::client_info

Context kept for the client.

Definition at line 1795 of file fs_api.h.

Referenced by create_download_context(), and GNUNET_FS_download_make_status_().

◆ uri

struct GNUNET_FS_Uri* GNUNET_FS_DownloadContext::uri

URI that identifies the file that we are downloading.

Definition at line 1800 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), free_download_context(), full_recursive_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), match_full_data(), process_result_with_request(), reconstruct_cb(), trigger_recursive_download(), try_match_block(), and try_top_down_reconstruction().

◆ meta

struct GNUNET_FS_MetaData* GNUNET_FS_DownloadContext::meta

Known meta-data for the file (can be NULL).

Definition at line 1805 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), free_download_context(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), is_recursive_download(), and signal_download_resume().

◆ emsg

char* GNUNET_FS_DownloadContext::emsg

Error message, NULL if we're doing OK.

Definition at line 1810 of file fs_api.h.

Referenced by check_completed(), deserialize_download(), deserialize_subdownload(), free_download_context(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_sync_(), process_result_with_request(), signal_download_resume(), and try_match_block().

◆ serialization

char* GNUNET_FS_DownloadContext::serialization

Random portion of filename we use for syncing state of this download.

Definition at line 1816 of file fs_api.h.

Referenced by deserialize_download(), free_download_context(), get_download_sync_filename(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), GNUNET_FS_search_result_sync_(), and search_result_stop().

◆ filename

char* GNUNET_FS_DownloadContext::filename

Where are we writing the data (name of the file, can be NULL!).

Definition at line 1822 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), encrypt_existing_match(), free_download_context(), full_recursive_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), is_recursive_download(), process_result_with_request(), reconstruct_cb(), trigger_recursive_download(), try_match_block(), and try_top_down_reconstruction().

◆ temp_filename

char* GNUNET_FS_DownloadContext::temp_filename

Where are we writing the data temporarily (name of the file, can be NULL!); used if we do not have a permanent name and we are a directory and we do a recursive download.

Definition at line 1829 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), free_download_context(), full_recursive_download(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), process_result_with_request(), and try_match_block().

◆ job_queue

struct GNUNET_FS_QueueEntry* GNUNET_FS_DownloadContext::job_queue

Our entry in the job queue.

Definition at line 1834 of file fs_api.h.

Referenced by check_completed(), create_download_context(), deserialize_download(), GNUNET_FS_download_resume(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_stop(), process_result_with_request(), and try_reconnect().

◆ te

struct GNUNET_FS_TreeEncoder* GNUNET_FS_DownloadContext::te

Tree encoder used for the reconstruction.

Definition at line 1839 of file fs_api.h.

Referenced by get_next_block(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), and GNUNET_FS_download_stop().

◆ rfh

struct GNUNET_DISK_FileHandle* GNUNET_FS_DownloadContext::rfh

File handle for reading data from an existing file (to pass to tree encoder).

Definition at line 1845 of file fs_api.h.

Referenced by check_completed(), fh_reader(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), reconstruct_cont(), and try_top_down_reconstruction().

◆ active

struct GNUNET_CONTAINER_MultiHashMap* GNUNET_FS_DownloadContext::active

Map of active requests (those waiting for a response).

The key is the hash of the encrypted block (aka query).

Definition at line 1851 of file fs_api.h.

Referenced by activate_fs_download(), create_download_context(), deserialize_download(), do_reconnect(), free_download_context(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_stop(), handle_put(), process_result_with_request(), reconstruct_cb(), and schedule_block_download().

◆ top_request

struct DownloadRequest* GNUNET_FS_DownloadContext::top_request

Top-level download request.

Definition at line 1856 of file fs_api.h.

Referenced by deserialize_download(), free_download_context(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), match_full_data(), process_result_with_request(), reconstruct_cb(), and reconstruct_cont().

◆ target

struct GNUNET_PeerIdentity GNUNET_FS_DownloadContext::target

Identity of the peer having the content, or all-zeros if we don't know of such a peer.

Definition at line 1862 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), and retry_entry().

◆ task

struct GNUNET_SCHEDULER_Task* GNUNET_FS_DownloadContext::task

ID of a task that is using this struct and that must be cancelled when the download is being stopped (if not NULL).

Used for the task that adds some artificial delay when trying to reconnect to the FS service or the task processing incrementally the data on disk, or the task requesting blocks, etc.

Definition at line 1872 of file fs_api.h.

Referenced by check_completed(), create_download_context(), deserialize_download(), do_reconnect(), get_next_block(), GNUNET_FS_download_resume(), GNUNET_FS_download_signal_suspend_(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), reconstruct_cb(), reconstruct_cont(), and try_reconnect().

◆ offset

uint64_t GNUNET_FS_DownloadContext::offset

What is the first offset that we're interested in?

Definition at line 1878 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_start(), GNUNET_FS_download_start_from_search(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_sync_(), process_result_with_request(), reconstruct_cb(), and try_match_block().

◆ length

uint64_t GNUNET_FS_DownloadContext::length

How many bytes starting from offset are desired? This is NOT the overall length of the file!

Definition at line 1884 of file fs_api.h.

Referenced by check_completed(), create_download_context(), deserialize_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_resume(), GNUNET_FS_download_start(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_start_from_search(), GNUNET_FS_download_start_task_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), process_result_with_request(), reconstruct_cb(), and try_match_block().

◆ completed

uint64_t GNUNET_FS_DownloadContext::completed

How many bytes have we already received within the specified range (DBlocks only).

Definition at line 1890 of file fs_api.h.

Referenced by check_completed(), deserialize_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_stop(), GNUNET_FS_download_sync_(), process_result_with_request(), reconstruct_cb(), and try_match_block().

◆ old_file_size

uint64_t GNUNET_FS_DownloadContext::old_file_size

What was the size of the file on disk that we're downloading before we started? Used to detect if there is a point in checking an existing block on disk for matching the desired content.

0 if the file did not exist already.

Definition at line 1898 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_sync_(), and try_top_down_reconstruction().

◆ start_time

struct GNUNET_TIME_Absolute GNUNET_FS_DownloadContext::start_time

Time download was started.

Definition at line 1903 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_make_status_(), and GNUNET_FS_download_sync_().

◆ reconnect_backoff

struct GNUNET_TIME_Relative GNUNET_FS_DownloadContext::reconnect_backoff

How long to wait before we try to reconnect to FS service?

Definition at line 1908 of file fs_api.h.

Referenced by try_reconnect().

◆ anonymity

uint32_t GNUNET_FS_DownloadContext::anonymity

Desired level of anonymity.

Definition at line 1913 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_sync_(), retry_entry(), and trigger_recursive_download().

◆ treedepth

unsigned int GNUNET_FS_DownloadContext::treedepth

The depth of the file-tree.

Definition at line 1918 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_start_task_(), process_result_with_request(), and try_top_down_reconstruction().

◆ options

enum GNUNET_FS_DownloadOptions GNUNET_FS_DownloadContext::options

Options for the download.

Definition at line 1923 of file fs_api.h.

Referenced by create_download_context(), deserialize_download(), GNUNET_FS_download_make_status_(), GNUNET_FS_download_resume(), GNUNET_FS_download_start_downloading_(), GNUNET_FS_download_sync_(), is_recursive_download(), process_result_with_request(), retry_entry(), and trigger_recursive_download().

◆ has_finished

int GNUNET_FS_DownloadContext::has_finished

Flag set upon transitive completion (includes child downloads).

This flag is only set to GNUNET_YES for directories where all child-downloads have also completed (and signalled completion).

Definition at line 1930 of file fs_api.h.

Referenced by check_completed(), deserialize_download(), and GNUNET_FS_download_sync_().

◆ issue_requests

int GNUNET_FS_DownloadContext::issue_requests

Are we ready to issue requests (reconstructions are finished)?

Definition at line 1935 of file fs_api.h.

Referenced by GNUNET_FS_download_start_task_(), process_result_with_request(), and reconstruct_cont().

The documentation for this struct was generated from the following file:

src/service/fs/fs_api.h

Data Fields