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feat(controller-peers-env-fallback): add the shared "which candidate is me" lookup (task 1.2)

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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-10-03 05:18:10 +00:00
parent 7328b06c53
commit d4858e1fe9
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
4 changed files with 131 additions and 1 deletions
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15
src/include/xce/cluster.h
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@ -148,6 +148,21 @@ int xce_parse_peers(const char* peers_str, xce_cluster_config_t* cfg);
*/
const char* xce_controller_peers_env(void);
/**
* xce_peers_find_identity() — the one "which candidate is me" rule.
*
* A candidate's key is its name when non-empty, otherwise its hostname
* (a named candidate is never matched by its hostname). The first
* candidate whose key matches name (compared over XCE_MAXNAME_LEN - 1
* characters) wins. An empty name is compared like any other, so it
* matches an unnamed candidate with an empty hostname.
*
* Returns the matching candidate's index, or -1 when cfg or name is NULL
* or nothing matches. No default is applied; each caller keeps its own
* no-match handling.
*/
int xce_peers_find_identity(const xce_cluster_config_t* cfg, const char* name);
/* Test seam: set to non-NULL to override the real connect (unit tests only) */
typedef void* (*xce_connect_fn_t)(const char* host, int port);
void xce_cluster_set_connect_fn(xce_connect_fn_t fn);