[asterisk-dev] [Code Review] 3191: channel uniqueid phase 1: convert string uniqueid values to structure with time

Matt Jordan reviewboard at asterisk.org
Wed Feb 19 17:23:00 CST 2014 

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/branches/12/include/asterisk/channel.h
<https://reviewboard.asterisk.org/r/3191/#comment20532>

    This struct should be opaque, in the same way that all other channel internals are also opaque.
    
    That means directly accessing the unique_id field should not be allowed. Instead, calling ast_channel_uniqueid or ast_channel_linkedid should still return a const char *, that happens to map to the unique_id contained in the structure.
    
    The fact that we now have a structure should be - almost entirely - an implementation detail of channel.c and internal_channel.c, and not exposed to users of the channel. That's a large part of why we opaquified the channel.
    
    That will, unfortunately, undo some of the changes you made - but I'd hate to undo the channel opaquification that was done by others in Asterisk 11.



/branches/12/include/asterisk/channel.h
<https://reviewboard.asterisk.org/r/3191/#comment20533>

    This function can still be declared here, but it should be implemented in channel_internal, where it will have the full implementation of the ast_channel_id struct.



/branches/12/main/cel.c
<https://reviewboard.asterisk.org/r/3191/#comment20534>

    There shouldn't be any reason to memset these, as the structure is calloc'd. 


- Matt Jordan


On Feb. 19, 2014, 3:38 p.m., Scott Griepentrog wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/3191/
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> 
> (Updated Feb. 19, 2014, 3:38 p.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Bugs: ASTERISK-23120
>     https://issues.asterisk.org/jira/browse/ASTERISK-23120
> 
> 
> Repository: Asterisk
> 
> 
> Description
> -------
> 
> This is the first phase of channel uniqueid changes for ASTERISK-23120.
> 
> * ast_channel_uniqueid structure replaces ast_string values uniqueid and linkedid in channel structure
> 
>     struct ast_channel_id {
>       char unique_id[AST_MAX_UNIQUEID];   /*!< Unique Identifier - can be set on originate */
>       time_t creation_time;               /*!< Creation time */
>       int creation_unique;                /*!< sub-second unique value */
>     }
> 
> * ast_channel_linkedid() and ast_channel_uniqueid() now return ptr to struct, not char *
> 
> * all references to uniqueid & linkedid updated to either pass entire structure because full uniqueid with time must be propagated, or just the ->unique_id string element.
> 
> * an issue with argument order to ast_channel_alloc() in chan_mgcp.c was corrected [BUGFIX].
> 
> * an issue with argument order to ast_channel_alloc() in chan_gtalk.c was corrected [BUGFIX].
> 
> * there should be a slight performance improvement by removing the ast_string handling of id's, but at the cost of +~250 bytes to the channel structure.
> 
> * defines for AST_MAX_UNIQUEID (channel.h) and MAX_CHANNEL_ID (rtp_engine.h) have been changed from 150 to 128 to reduce structure alignment issues (and also just  because 150 is ridiculously large)
> 
> 
> Diffs
> -----
> 
>   /branches/12/tests/test_substitution.c 408446 
>   /branches/12/tests/test_cel.c 408446 
>   /branches/12/tests/test_cdr.c 408446 
>   /branches/12/res/stasis/control.c 408446 
>   /branches/12/res/stasis/app.c 408446 
>   /branches/12/res/snmp/agent.c 408446 
>   /branches/12/res/res_stasis_snoop.c 408446 
>   /branches/12/res/res_stasis_recording.c 408446 
>   /branches/12/res/res_stasis_playback.c 408446 
>   /branches/12/res/res_stasis.c 408446 
>   /branches/12/res/res_pjsip_refer.c 408446 
>   /branches/12/res/res_musiconhold.c 408446 
>   /branches/12/res/res_monitor.c 408446 
>   /branches/12/res/res_fax.c 408446 
>   /branches/12/res/res_agi.c 408446 
>   /branches/12/res/parking/parking_bridge_features.c 408446 
>   /branches/12/res/parking/parking_applications.c 408446 
>   /branches/12/res/ari/resource_channels.c 408446 
>   /branches/12/main/stasis_channels.c 408446 
>   /branches/12/main/stasis_bridges.c 408446 
>   /branches/12/main/pbx.c 408446 
>   /branches/12/main/manager.c 408446 
>   /branches/12/main/features.c 408446 
>   /branches/12/main/endpoints.c 408446 
>   /branches/12/main/core_unreal.c 408446 
>   /branches/12/main/channel_internal_api.c 408446 
>   /branches/12/main/channel.c 408446 
>   /branches/12/main/cel.c 408446 
>   /branches/12/main/bridge_channel.c 408446 
>   /branches/12/include/asterisk/rtp_engine.h 408446 
>   /branches/12/include/asterisk/channel_internal.h 408446 
>   /branches/12/include/asterisk/channel.h 408446 
>   /branches/12/funcs/func_channel.c 408446 
>   /branches/12/channels/chan_vpb.cc 408446 
>   /branches/12/channels/chan_unistim.c 408446 
>   /branches/12/channels/chan_skinny.c 408446 
>   /branches/12/channels/chan_sip.c 408446 
>   /branches/12/channels/chan_pjsip.c 408446 
>   /branches/12/channels/chan_phone.c 408446 
>   /branches/12/channels/chan_oss.c 408446 
>   /branches/12/channels/chan_nbs.c 408446 
>   /branches/12/channels/chan_multicast_rtp.c 408446 
>   /branches/12/channels/chan_motif.c 408446 
>   /branches/12/channels/chan_misdn.c 408446 
>   /branches/12/channels/chan_mgcp.c 408446 
>   /branches/12/channels/chan_jingle.c 408446 
>   /branches/12/channels/chan_iax2.c 408446 
>   /branches/12/channels/chan_h323.c 408446 
>   /branches/12/channels/chan_gtalk.c 408446 
>   /branches/12/channels/chan_dahdi.c 408446 
>   /branches/12/channels/chan_console.c 408446 
>   /branches/12/channels/chan_alsa.c 408446 
>   /branches/12/apps/app_voicemail.c 408446 
>   /branches/12/apps/app_queue.c 408446 
>   /branches/12/apps/app_minivm.c 408446 
>   /branches/12/apps/app_followme.c 408446 
>   /branches/12/apps/app_dumpchan.c 408446 
>   /branches/12/apps/app_confbridge.c 408446 
>   /branches/12/apps/app_chanspy.c 408446 
>   /branches/12/addons/chan_ooh323.c 408446 
>   /branches/12/addons/chan_mobile.c 408446 
> 
> Diff: https://reviewboard.asterisk.org/r/3191/diff/
> 
> 
> Testing
> -------
> 
> Ran new linkedid_check test and received same results.  Also ran some bridge tests to check for asserts.
> 
> 
> Thanks,
> 
> Scott Griepentrog
> 
>

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