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Diffstat (limited to 'src/core/ext/lb_policy/pick_first/pick_first.c')
-rw-r--r--src/core/ext/lb_policy/pick_first/pick_first.c78
1 files changed, 48 insertions, 30 deletions
diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/lb_policy/pick_first/pick_first.c
index cc559eb2da..9decf70692 100644
--- a/src/core/ext/lb_policy/pick_first/pick_first.c
+++ b/src/core/ext/lb_policy/pick_first/pick_first.c
@@ -103,8 +103,9 @@ static void pf_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
p->shutdown = 1;
pp = p->pending_picks;
p->pending_picks = NULL;
- grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_SHUTDOWN, "shutdown");
+ grpc_connectivity_state_set(
+ exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN,
+ GRPC_ERROR_CREATE("Channel shutdown"), "shutdown");
/* cancel subscription */
if (selected != NULL) {
grpc_connected_subchannel_notify_on_state_change(
@@ -120,7 +121,7 @@ static void pf_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
*pp->target = NULL;
grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent,
p->base.interested_parties);
- grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
+ grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, NULL);
gpr_free(pp);
pp = next;
}
@@ -139,7 +140,8 @@ static void pf_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent,
p->base.interested_parties);
*target = NULL;
- grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
+ grpc_exec_ctx_sched(exec_ctx, pp->on_complete,
+ GRPC_ERROR_CREATE("Pick Cancelled"), NULL);
gpr_free(pp);
} else {
pp->next = p->pending_picks;
@@ -164,7 +166,8 @@ static void pf_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
initial_metadata_flags_eq) {
grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent,
p->base.interested_parties);
- grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL);
+ grpc_exec_ctx_sched(exec_ctx, pp->on_complete,
+ GRPC_ERROR_CREATE("Pick Cancelled"), NULL);
gpr_free(pp);
} else {
pp->next = p->pending_picks;
@@ -237,7 +240,7 @@ static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
}
static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg,
- bool iomgr_success) {
+ grpc_error *error) {
pick_first_lb_policy *p = arg;
size_t i;
size_t num_subchannels = p->num_subchannels;
@@ -258,12 +261,14 @@ static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg,
}
static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
- bool iomgr_success) {
+ grpc_error *error) {
pick_first_lb_policy *p = arg;
grpc_subchannel *selected_subchannel;
pending_pick *pp;
grpc_connected_subchannel *selected;
+ GRPC_ERROR_REF(error);
+
gpr_mu_lock(&p->mu);
selected = GET_SELECTED(p);
@@ -271,6 +276,7 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
if (p->shutdown) {
gpr_mu_unlock(&p->mu);
GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pick_first_connectivity");
+ GRPC_ERROR_UNREF(error);
return;
} else if (selected != NULL) {
if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) {
@@ -278,7 +284,8 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
p->checking_connectivity = GRPC_CHANNEL_SHUTDOWN;
}
grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- p->checking_connectivity, "selected_changed");
+ p->checking_connectivity, GRPC_ERROR_REF(error),
+ "selected_changed");
if (p->checking_connectivity != GRPC_CHANNEL_SHUTDOWN) {
grpc_connected_subchannel_notify_on_state_change(
exec_ctx, selected, p->base.interested_parties,
@@ -291,7 +298,8 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
switch (p->checking_connectivity) {
case GRPC_CHANNEL_READY:
grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_READY, "connecting_ready");
+ GRPC_CHANNEL_READY, GRPC_ERROR_NONE,
+ "connecting_ready");
selected_subchannel = p->subchannels[p->checking_subchannel];
selected =
grpc_subchannel_get_connected_subchannel(selected_subchannel);
@@ -300,15 +308,16 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
/* drop the pick list: we are connected now */
GRPC_LB_POLICY_WEAK_REF(&p->base, "destroy_subchannels");
gpr_atm_rel_store(&p->selected, (gpr_atm)selected);
- grpc_exec_ctx_enqueue(
- exec_ctx, grpc_closure_create(destroy_subchannels, p), true, NULL);
+ grpc_exec_ctx_sched(exec_ctx,
+ grpc_closure_create(destroy_subchannels, p),
+ GRPC_ERROR_NONE, NULL);
/* update any calls that were waiting for a pick */
while ((pp = p->pending_picks)) {
p->pending_picks = pp->next;
*pp->target = selected;
grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent,
p->base.interested_parties);
- grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
+ grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, NULL);
gpr_free(pp);
}
grpc_connected_subchannel_notify_on_state_change(
@@ -320,12 +329,13 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
(p->checking_subchannel + 1) % p->num_subchannels;
if (p->checking_subchannel == 0) {
/* only trigger transient failure when we've tried all alternatives */
- grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_TRANSIENT_FAILURE,
- "connecting_transient_failure");
+ grpc_connectivity_state_set(
+ exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE,
+ GRPC_ERROR_REF(error), "connecting_transient_failure");
}
+ GRPC_ERROR_UNREF(error);
p->checking_connectivity = grpc_subchannel_check_connectivity(
- p->subchannels[p->checking_subchannel]);
+ p->subchannels[p->checking_subchannel], &error);
if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) {
grpc_subchannel_notify_on_state_change(
exec_ctx, p->subchannels[p->checking_subchannel],
@@ -337,9 +347,9 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
break;
case GRPC_CHANNEL_CONNECTING:
case GRPC_CHANNEL_IDLE:
- grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_CONNECTING,
- "connecting_changed");
+ grpc_connectivity_state_set(
+ exec_ctx, &p->state_tracker, GRPC_CHANNEL_CONNECTING,
+ GRPC_ERROR_REF(error), "connecting_changed");
grpc_subchannel_notify_on_state_change(
exec_ctx, p->subchannels[p->checking_subchannel],
p->base.interested_parties, &p->checking_connectivity,
@@ -352,38 +362,45 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
GRPC_SUBCHANNEL_UNREF(exec_ctx, p->subchannels[p->num_subchannels],
"pick_first");
if (p->num_subchannels == 0) {
- grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_SHUTDOWN,
- "no_more_channels");
+ grpc_connectivity_state_set(
+ exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN,
+ GRPC_ERROR_CREATE_REFERENCING("Pick first exhausted channels",
+ &error, 1),
+ "no_more_channels");
while ((pp = p->pending_picks)) {
p->pending_picks = pp->next;
*pp->target = NULL;
- grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL);
+ grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE,
+ NULL);
gpr_free(pp);
}
GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base,
"pick_first_connectivity");
} else {
- grpc_connectivity_state_set(exec_ctx, &p->state_tracker,
- GRPC_CHANNEL_TRANSIENT_FAILURE,
- "subchannel_failed");
+ grpc_connectivity_state_set(
+ exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE,
+ GRPC_ERROR_REF(error), "subchannel_failed");
p->checking_subchannel %= p->num_subchannels;
+ GRPC_ERROR_UNREF(error);
p->checking_connectivity = grpc_subchannel_check_connectivity(
- p->subchannels[p->checking_subchannel]);
+ p->subchannels[p->checking_subchannel], &error);
goto loop;
}
}
}
gpr_mu_unlock(&p->mu);
+
+ GRPC_ERROR_UNREF(error);
}
static grpc_connectivity_state pf_check_connectivity(grpc_exec_ctx *exec_ctx,
- grpc_lb_policy *pol) {
+ grpc_lb_policy *pol,
+ grpc_error **error) {
pick_first_lb_policy *p = (pick_first_lb_policy *)pol;
grpc_connectivity_state st;
gpr_mu_lock(&p->mu);
- st = grpc_connectivity_state_check(&p->state_tracker);
+ st = grpc_connectivity_state_check(&p->state_tracker, error);
gpr_mu_unlock(&p->mu);
return st;
}
@@ -406,7 +423,8 @@ static void pf_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
if (selected) {
grpc_connected_subchannel_ping(exec_ctx, selected, closure);
} else {
- grpc_exec_ctx_enqueue(exec_ctx, closure, false, NULL);
+ grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_CREATE("Not connected"),
+ NULL);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-04 04:44:35 +0000