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MINOR: peers: Add flags to report the peer state to the resync task

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As the previous patch, this patch is also part of the refactoring of peer
locking mechanisme. Here we add flags to represent a transitional state for
a peer. It will be the resync task responsibility to update the peers state
accordingly.

A peer may be in 4 transitional states:

  * accepted : a connection was accepted from a peer
  * connected: a connection to a peer was established
  * release  : a peer session was released
  * renewed  : a peer session was released because it was replaced by a new
               one. Concretly, this will be equivalent to released+accepted

If none of these flags is set, it means the transition, if any, was
processed by the resync task, or no transition happened.
This commit is contained in:
Christopher Faulet 2024-03-22 14:34:21 +01:00
parent 9b78e33837
commit 4ca8a00955
1 changed files with 6 additions and 0 deletions
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6
src/peers.c
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@ -96,12 +96,18 @@
#define PEER_F_LEARN_PROCESS 0x00000020 /* Learn from peer was started */
#define PEER_F_LEARN_FINISHED 0x00000040 /* Learn from peer fully finished */
#define PEER_F_LEARN_NOTUP2DATE 0x00000080 /* Learn from peer finished but peer is not up to date */
#define PEER_F_ST_ACCEPTED 0x00000100 /* Used to set a peer in accepted state. */
#define PEER_F_ST_CONNECTED 0x00000200 /* Used to set a peer in connected state. */
#define PEER_F_ST_RENEWED 0x00000400 /* Used to set a peer in accepted state and old connection was replaced. */
#define PEER_F_ST_RELEASED 0x00000800 /* Used to set a peer in released state. */
#define PEER_F_ALIVE 0x20000000 /* Used to flag a peer a alive. */
#define PEER_F_HEARTBEAT 0x40000000 /* Heartbeat message to send. */
#define PEER_F_DWNGRD 0x80000000 /* When this flag is enabled, we must downgrade the supported version announced during peer sessions. */
#define PEER_TEACH_RESET ~(PEER_F_TEACH_PROCESS|PEER_F_TEACH_FINISHED) /* PEER_F_TEACH_COMPLETE should never be reset */
#define PEER_LEARN_RESET ~(PEER_F_LEARN_ASSIGN|PEER_F_LEARN_PROCESS|PEER_F_LEARN_FINISHED|PEER_F_LEARN_NOTUP2DATE)
#define PEER_STATE_RESET ~(PEER_F_ST_ACCEPTED|PEER_F_ST_CONNECTED|PEER_F_ST_RENEWED|PEER_F_ST_RELEASED)
#define PEER_RESYNC_TIMEOUT 5000 /* 5 seconds */
#define PEER_RECONNECT_TIMEOUT 5000 /* 5 seconds */