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MINOR: conn_stream: new shutr/w status flags

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In order to support all shutdown modes on the CS, we introduce the
following flags :
  CS_FL_SHRD : shut read, drain extra data
  CS_FL_SHRR : shut read, reset extra data
  CS_FL_SHWN : shut write, normal notification
  CS_FL_SHWS : shut write, silent mode (no notification)

And the following modes for shutr/shutw :

  CS_SHR_DRAIN, CS_SHR_RESET, CS_SHW_NORMAL, CS_SHW_SILENT.

Note: it's possible that we won't need to distinguish the two shutw
above as they're only an action.

For now they are not used.
This commit is contained in:
Willy Tarreau 2017-10-05 15:06:07 +02:00
parent 4ff3b89643
commit 79dadb5335
1 changed files with 21 additions and 0 deletions
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21
include/types/connection.h
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@ -58,10 +58,31 @@ enum {
CS_FL_DATA_RD_ENA = 0x00000001, /* receiving data is allowed */
CS_FL_DATA_WR_ENA = 0x00000002, /* sending data is desired */
CS_FL_SHRD = 0x00000010, /* read shut, draining extra data */
CS_FL_SHRR = 0x00000020, /* read shut, resetting extra data */
CS_FL_SHR = CS_FL_SHRD | CS_FL_SHRR, /* read shut status */
CS_FL_SHWN = 0x00000040, /* write shut, verbose mode */
CS_FL_SHWS = 0x00000080, /* write shut, silent mode */
CS_FL_SHW = CS_FL_SHWN | CS_FL_SHWS, /* write shut status */
CS_FL_ERROR = 0x00000100, /* a fatal error was reported */
CS_FL_EOS = 0x00001000, /* End of stream */
};
/* cs_shutr() modes */
enum cs_shr_mode {
CS_SHR_DRAIN = 0, /* read shutdown, drain any extra stuff */
CS_SHR_RESET = 1, /* read shutdown, reset any extra stuff */
};
/* cs_shutw() modes */
enum cs_shw_mode {
CS_SHW_NORMAL = 0, /* regular write shutdown */
CS_SHW_SILENT = 1, /* imminent close, don't notify peer */
};
/* For each direction, we have a CO_FL_{SOCK,DATA}_<DIR>_ENA flag, which
* indicates if read or write is desired in that direction for the respective
* layers. The current status corresponding to the current layer being used is