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feat(libxce-failover): foundation — per-ctx failover state, redirect-hint fields, remove orphaned retry primitive (task 1.1)

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Rongsong Shen 2026-06-17 00:05:41 +00:00
parent 8c11655e53
commit 387ccfa8dc
17 changed files with 2122 additions and 562 deletions
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29
src/lib/client.c
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@ -4,6 +4,7 @@
#include <sys/socket.h>
#include "client.h"
#include "client_internal.h"
#include "controller.capnp.h"
#include "mylock.h"
@ -13,19 +14,6 @@
#include "xcectx.h"
#include "xlist.h"
typedef enum {
API_CTX_INIT = 0,
API_CTX_RUN,
API_CTX_DOWN,
API_CTX_ERR
} api_ctx_state_t;
typedef struct {
xce_client_config_t* conf;
endpoint_t ep;
xce_ctx_t ctx;
} api_ctx_t;
int xcecli_ctx_init(xcecli_ctx_t* c, xce_client_config_t* cfg)
{
api_ctx_t* ctx;
@ -126,6 +114,20 @@ int xcecli_start(xcecli_ctx_t c)
return rc;
}
/* Initialize per-context failover state: sticky primary starts at
* masters[0] (the initial connect target above), retry tunables default
* to XCE_RETRY_DEFAULTS, and no rejoin hook is installed for pure clients.
*/
rc = mylock_init(&(ctx->failover.lock));
if (rc < 0) {
endpoint_fini(&(ctx->ep));
return rc;
}
ctx->failover.cur_master = 0;
ctx->failover.retry = XCE_RETRY_DEFAULTS;
ctx->failover.rejoin_cb = NULL;
ctx->failover.rejoin_arg = NULL;
rc = xce_ctx_start(&(ctx->ctx));
return rc;
@ -141,6 +143,7 @@ int xcecli_stop(xcecli_ctx_t c)
xce_ctx_stop(&(ctx->ctx));
endpoint_fini(&(ctx->ep));
mylock_fini(&(ctx->failover.lock));
return 0;
}