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Note: this is a squashed commit; see branch bug6465_rebased_v2 of user/andrea/tor.git for full history of the following 90 commits:
Add channel.c/channel.h for bug 6465
Fix make check-spaces in new channel.c/channel.h
Make sure new channel.h is in nodist_HEADERS and Makefile.nmake is up to date too
Add channel_state_t and state utility functions
Add channel_change_state()
Better comments in channel.h
Add CHANNEL_STATE_LISTENING for channel_t
Fix wide line in channel.c
Add structures/prototypes for incoming cell handling
Implement channel_queue_cell() and channel_queue_var_cell()
Implement channel_process_cells()
Fix asserts in channel_queue_cell() and channel_queue_var_cell()
Add descriptive comments for channel_queue_cell() and channel_queue_var_cell()
Implement channel cell handler getters/setters
Queue outgoing writes when not in writeable state
Drain queues and test assertions when changing channel_t state
Add log_debug() messages for channel_t stuff
Add log_debug() messages for channel_t stuff
Add some channel_t metadata
Add time_t client_used to channel_t
Add channel_touched_by_client()
Declare a few channel_t metadata queries we'll have to implement later for use by circuitbuild.c
Add next_circ_id/circ_id_type to channel_t for use by circuitbuild.c
Count n_circuits in channel_t
Channel timestamp calls
Add create timestamp for channel.h
Declare some new metadata queries on channel_t
Add get_real_remote_descr() prototype
Move active_circuits stuff to channel_t, some other or.h and channel.h changes
Make channel_t refcounted and use global lists of active channels
Update channel_request_close() and channel_change_state() for channel_t registration mechanism
Handle closing channels sensibly
Add global_identifier for channels, channel_init() internal use function
Add timestamp_last_added_nonpadding to channel_t
Better comments in channel_init()
Correctly handle next_circ_id in channel_init()
Correctly handle next_circ_id in channel_init() and even compile this time
Appease make check-spaces
Update timestamps when writing cells to channel_t
Add channel_flush_some_cells() to call channel_flush_from_first_active_circuit()
Add registered channel lookup functions
Get rid of client_used in or_connection_t; it's in channel_t now
Get rid of circ_id_type in or_connection_t; implement channel_set_circ_id_type()
Eliminate is_bad_for_new_circs in or_connection_t; implement getter/setter for it in channel_t
Eliminate next_circ_id in or_connection_t in favor of channel_t
Handle packed cells in channel_t for relay.c
Add channel_identity_map and related functions
Handle add/remove from channel identity map on state transitions
Implement channel_is_local() and channel_mark_local()
Implement channel_is_client() and channel_mark_client()
Implement channel_is_outgoing() and channel_mark_outgoing()
Eliminate declaration for redundant channel_nonopen_was_started_here()
Add channel timestamps
Add channel timestamps, fix some make-check-spaces complaints
Remove redundant channel_was_started_here() function and initiated_remotely bit
Rename channel_get_remote_descr()/channel_get_real_remote_descr() to something clearer in channel.h
Replace channel_get_write_queue_len() with sufficient and easier to implement channel_has_queued_writes() in channel.h
Change return type of channel_is_bad_for_new_circs() to int for consistency
Implement channel_has_queued_writes()
Rename channel_touched_by_client() and client_used field for consistency with other timestamps in channel.{c,h}
Implement channel_get_actual_remote_descr() and channel_get_canonical_remote_descr() in channel.{c,h}
Implement channel_matches_extend_info() in channel.{c,h}
Implement channel_get_for_extend() and channel_is_better() in channel.{c,h}
Make channel_is_better() public in channel.{c,h}
Implement channel_matches_target_addr_for_extend() in channel.{c,h}
Implement channel_is_canonical_is_reliable() in channel.{c,h}
Demoronize get_remote_descr() method prototype - what the hell was I thinking there?
Timestamp channels in the right places in channel.c
Add missing tor_assert() in channel.c
Check if the lower layer accepted a cell in channel_write_cell() et al. of channel.c
Implement channel_flush_cells() in channel.c (w00t, it builds at last)
Call channel_timestamp_drained() at the right places in channel.c
Implement channel_run_cleanup()
Support optional channel_get_remote_addr() method and use it for GeoIP in channel_do_open_actions()
Get rid of channel refcounting; it'll be too complicated to handle it properly with all the pointers from circuits to channels, and closing from channel_run_cleanup() will work okay just like with connections
Doxygenate channel.c
Appease make check-spaces in channel.c
Fix superfluous semicolons in channel.c
Add/remove channels from identity digest map in all the right places in channel.c
The cell queues on channel_t must be empty when going to a CLOSED or ERROR state
Appease make check-spaces in channel.c
Add channel_clear/set_identity_digest() and some better logging to channel.{c,h}
Fix better logging to channel.c
Avoid SIGSEGV testing for queue emptiness in channel_flush_some_cells_from_outgoing_queue()
Remove TODO about checking cell queue in channel_free(); no need for it
Appease make check-spaces in channel.c
Add channel_free_all() and support functions
Check nullness of active_circuit_pqueue in channel_free()
Fix SMARTLIST_FOREACH_END usage in channel_process_cells()
Rearrange channel_t struct to use a union distinguishing listener from cell-bearing channels in channel.{c,h}
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