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-rw-r--r--src/core/client_config/lb_policies/pick_first.c8
-rw-r--r--src/core/client_config/subchannel.c77
-rw-r--r--src/core/client_config/subchannel.h24
3 files changed, 75 insertions, 34 deletions
diff --git a/src/core/client_config/lb_policies/pick_first.c b/src/core/client_config/lb_policies/pick_first.c
index c94408200b..a8e5b5cc4a 100644
--- a/src/core/client_config/lb_policies/pick_first.c
+++ b/src/core/client_config/lb_policies/pick_first.c
@@ -77,7 +77,7 @@ void pf_destroy(grpc_lb_policy *pol) {
pick_first_lb_policy *p = (pick_first_lb_policy *)pol;
size_t i;
for (i = 0; i < p->num_subchannels; i++) {
- grpc_subchannel_unref(p->subchannels[i]);
+ GRPC_SUBCHANNEL_UNREF(p->subchannels[i], "pick_first");
}
gpr_free(p->subchannels);
gpr_mu_destroy(&p->mu);
@@ -180,7 +180,7 @@ loop:
p->checking_connectivity = grpc_subchannel_check_connectivity(
p->subchannels[p->checking_subchannel]);
p->num_subchannels--;
- grpc_subchannel_unref(p->subchannels[p->num_subchannels]);
+ GRPC_SUBCHANNEL_UNREF(p->subchannels[p->num_subchannels], "pick_first");
add_interested_parties_locked(p);
if (p->num_subchannels == 0) {
abort();
@@ -206,13 +206,13 @@ static void pf_broadcast(grpc_lb_policy *pol, grpc_transport_op *op) {
subchannels = gpr_malloc(n * sizeof(*subchannels));
for (i = 0; i < n; i++) {
subchannels[i] = p->subchannels[i];
- grpc_subchannel_ref(subchannels[i]);
+ GRPC_SUBCHANNEL_REF(subchannels[i], "pf_broadcast");
}
gpr_mu_unlock(&p->mu);
for (i = 0; i < n; i++) {
grpc_subchannel_process_transport_op(subchannels[i], op);
- grpc_subchannel_unref(subchannels[i]);
+ GRPC_SUBCHANNEL_UNREF(subchannels[i], "pf_broadcast");
}
gpr_free(subchannels);
}
diff --git a/src/core/client_config/subchannel.c b/src/core/client_config/subchannel.c
index 6f4bf2ebe8..3d065761ab 100644
--- a/src/core/client_config/subchannel.c
+++ b/src/core/client_config/subchannel.c
@@ -123,13 +123,29 @@ static grpc_connectivity_state compute_connectivity_locked(grpc_subchannel *c);
static gpr_timespec compute_connect_deadline(grpc_subchannel *c);
static void subchannel_connected(void *subchannel, int iomgr_success);
-static void subchannel_ref_locked(grpc_subchannel *c);
-static int subchannel_unref_locked(grpc_subchannel *c) GRPC_MUST_USE_RESULT;
-static void connection_ref_locked(connection *c);
-static grpc_subchannel *connection_unref_locked(connection *c)
+static void subchannel_ref_locked(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+static int subchannel_unref_locked(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) GRPC_MUST_USE_RESULT;
+static void connection_ref_locked(connection *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+static grpc_subchannel *connection_unref_locked(connection *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS)
GRPC_MUST_USE_RESULT;
static void subchannel_destroy(grpc_subchannel *c);
+#ifdef GRPC_SUBCHANNEL_REFCOUNT_DEBUG
+#define SUBCHANNEL_REF_LOCKED(p, r) subchannel_ref_locked((p), __FILE__, __LINE__, (r))
+#define SUBCHANNEL_UNREF_LOCKED(p, r) subchannel_unref_locked((p), __FILE__, __LINE__, (r))
+#define CONNECTION_REF_LOCKED(p, r) connection_ref_locked((p), __FILE__, __LINE__, (r))
+#define CONNECTION_UNREF_LOCKED(p, r) connection_unref_locked((p), __FILE__, __LINE__, (r))
+#define REF_PASS_ARGS , file, line, reason
+#define REF_LOG(name, p) gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p ref %d -> %d %s", (name), (p), (p)->refs, (p)->refs + 1, reason)
+#define UNREF_LOG(name, p) gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p unref %d -> %d %s", (name), (p), (p)->refs, (p)->refs - 1, reason)
+#else
+#define SUBCHANNEL_REF_LOCKED(p, r) subchannel_ref_locked((p))
+#define SUBCHANNEL_UNREF_LOCKED(p, r) subchannel_unref_locked((p))
+#define CONNECTION_REF_LOCKED(p, r) connection_ref_locked((p), __FILE__, __LINE__, (r))
+#define CONNECTION_UNREF_LOCKED(p, r) connection_unref_locked((p), __FILE__, __LINE__, (r))
+#define REF_PASS_ARGS
+#endif
+
/*
* connection implementation
*/
@@ -140,14 +156,16 @@ static void connection_destroy(connection *c) {
gpr_free(c);
}
-static void connection_ref_locked(connection *c) {
- subchannel_ref_locked(c->subchannel);
+static void connection_ref_locked(connection *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+ REF_LOG("CONNECTION", c);
+ subchannel_ref_locked(c->subchannel REF_PASS_ARGS);
++c->refs;
}
-static grpc_subchannel *connection_unref_locked(connection *c) {
+static grpc_subchannel *connection_unref_locked(connection *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
grpc_subchannel *destroy = NULL;
- if (subchannel_unref_locked(c->subchannel)) {
+ UNREF_LOG("CONNECTION", c);
+ if (subchannel_unref_locked(c->subchannel REF_PASS_ARGS)) {
destroy = c->subchannel;
}
if (--c->refs == 0 && c->subchannel->active != c) {
@@ -160,22 +178,26 @@ static grpc_subchannel *connection_unref_locked(connection *c) {
* grpc_subchannel implementation
*/
-static void subchannel_ref_locked(grpc_subchannel *c) { ++c->refs; }
+static void subchannel_ref_locked(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+ REF_LOG("SUBCHANNEL", c);
+ ++c->refs;
+}
-static int subchannel_unref_locked(grpc_subchannel *c) {
+static int subchannel_unref_locked(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+ UNREF_LOG("SUBCHANNEL", c);
return --c->refs == 0;
}
-void grpc_subchannel_ref(grpc_subchannel *c) {
+void grpc_subchannel_ref(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
gpr_mu_lock(&c->mu);
- subchannel_ref_locked(c);
+ subchannel_ref_locked(c REF_PASS_ARGS);
gpr_mu_unlock(&c->mu);
}
-void grpc_subchannel_unref(grpc_subchannel *c) {
+void grpc_subchannel_unref(grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
int destroy;
gpr_mu_lock(&c->mu);
- destroy = subchannel_unref_locked(c);
+ destroy = subchannel_unref_locked(c REF_PASS_ARGS);
gpr_mu_unlock(&c->mu);
if (destroy) subchannel_destroy(c);
}
@@ -190,6 +212,7 @@ static void subchannel_destroy(grpc_subchannel *c) {
grpc_mdctx_unref(c->mdctx);
grpc_pollset_set_destroy(&c->pollset_set);
grpc_connectivity_state_destroy(&c->state_tracker);
+ grpc_connector_unref(c->connector);
gpr_free(c);
}
@@ -246,7 +269,7 @@ static void continue_creating_call(void *arg, int iomgr_success) {
waiting_for_connect *w4c = arg;
grpc_subchannel_create_call(w4c->subchannel, &w4c->initial_op, w4c->target,
w4c->notify);
- grpc_subchannel_unref(w4c->subchannel);
+ GRPC_SUBCHANNEL_UNREF(w4c->subchannel, "waiting_for_connect");
gpr_free(w4c);
}
@@ -258,7 +281,7 @@ void grpc_subchannel_create_call(grpc_subchannel *c,
gpr_mu_lock(&c->mu);
if (c->active != NULL) {
con = c->active;
- connection_ref_locked(con);
+ CONNECTION_REF_LOCKED(con, "call");
gpr_mu_unlock(&c->mu);
*target = create_call(con, initial_op);
@@ -271,7 +294,7 @@ void grpc_subchannel_create_call(grpc_subchannel *c,
w4c->target = target;
w4c->subchannel = c;
/* released when clearing w4c */
- subchannel_ref_locked(c);
+ SUBCHANNEL_REF_LOCKED(c, "waiting_for_connect");
grpc_iomgr_closure_init(&w4c->continuation, continue_creating_call, w4c);
c->waiting = w4c;
grpc_subchannel_add_interested_party(c, initial_op->bind_pollset);
@@ -279,7 +302,7 @@ void grpc_subchannel_create_call(grpc_subchannel *c,
c->connecting = 1;
connectivity_state_changed_locked(c);
/* released by connection */
- subchannel_ref_locked(c);
+ SUBCHANNEL_REF_LOCKED(c, "connecting");
gpr_mu_unlock(&c->mu);
start_connect(c);
@@ -307,7 +330,7 @@ void grpc_subchannel_notify_on_state_change(grpc_subchannel *c,
do_connect = 1;
c->connecting = 1;
/* released by connection */
- subchannel_ref_locked(c);
+ SUBCHANNEL_REF_LOCKED(c, "connecting");
grpc_connectivity_state_set(&c->state_tracker,
compute_connectivity_locked(c));
}
@@ -365,7 +388,7 @@ static void on_state_changed(void *p, int iomgr_success) {
case GRPC_CHANNEL_TRANSIENT_FAILURE:
/* things are starting to go wrong, reconnect but don't deactivate */
/* released by connection */
- subchannel_ref_locked(c);
+ SUBCHANNEL_REF_LOCKED(c, "connection");
do_connect = 1;
c->connecting = 1;
break;
@@ -374,7 +397,7 @@ static void on_state_changed(void *p, int iomgr_success) {
done:
grpc_connectivity_state_set(&c->state_tracker,
compute_connectivity_locked(c));
- destroy = subchannel_unref_locked(c);
+ destroy = SUBCHANNEL_UNREF_LOCKED(c, "connection");
gpr_free(sw);
gpr_mu_unlock(mu);
if (do_connect) {
@@ -468,7 +491,7 @@ static void subchannel_connected(void *arg, int iomgr_success) {
} else {
int destroy;
gpr_mu_lock(&c->mu);
- destroy = subchannel_unref_locked(c);
+ destroy = SUBCHANNEL_UNREF_LOCKED(c, "connection");
gpr_mu_unlock(&c->mu);
if (destroy) subchannel_destroy(c);
/* TODO(ctiller): retry after sleeping */
@@ -499,18 +522,20 @@ static void connectivity_state_changed_locked(grpc_subchannel *c) {
* grpc_subchannel_call implementation
*/
-void grpc_subchannel_call_ref(grpc_subchannel_call *c) { gpr_ref(&c->refs); }
+void grpc_subchannel_call_ref(grpc_subchannel_call *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+ gpr_ref(&c->refs);
+}
-void grpc_subchannel_call_unref(grpc_subchannel_call *c) {
+void grpc_subchannel_call_unref(grpc_subchannel_call *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
if (gpr_unref(&c->refs)) {
gpr_mu *mu = &c->connection->subchannel->mu;
grpc_subchannel *destroy;
grpc_call_stack_destroy(SUBCHANNEL_CALL_TO_CALL_STACK(c));
gpr_mu_lock(mu);
- destroy = connection_unref_locked(c->connection);
+ destroy = CONNECTION_UNREF_LOCKED(c->connection, "call");
gpr_mu_unlock(mu);
gpr_free(c);
- if (destroy) {
+ if (destroy != NULL) {
subchannel_destroy(destroy);
}
}
diff --git a/src/core/client_config/subchannel.h b/src/core/client_config/subchannel.h
index 766258846a..97a64c488d 100644
--- a/src/core/client_config/subchannel.h
+++ b/src/core/client_config/subchannel.h
@@ -43,10 +43,26 @@ typedef struct grpc_subchannel grpc_subchannel;
typedef struct grpc_subchannel_call grpc_subchannel_call;
typedef struct grpc_subchannel_args grpc_subchannel_args;
-void grpc_subchannel_ref(grpc_subchannel *channel);
-void grpc_subchannel_unref(grpc_subchannel *channel);
-void grpc_subchannel_call_ref(grpc_subchannel_call *call);
-void grpc_subchannel_call_unref(grpc_subchannel_call *call);
+#define GRPC_SUBCHANNEL_REFCOUNT_DEBUG
+
+#ifdef GRPC_SUBCHANNEL_REFCOUNT_DEBUG
+#define GRPC_SUBCHANNEL_REF(p, r) grpc_subchannel_ref((p), __FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_UNREF(p, r) grpc_subchannel_unref((p), __FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_CALL_REF(p, r) grpc_subchannel_call_ref((p), __FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_CALL_UNREF(p, r) grpc_subchannel_call_unref((p), __FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS , const char *file, int line, const char *reason
+#else
+#define GRPC_SUBCHANNEL_REF(p, r) grpc_subchannel_ref((p))
+#define GRPC_SUBCHANNEL_UNREF(p, r) grpc_subchannel_unref((p))
+#define GRPC_SUBCHANNEL_CALL_REF(p, r) grpc_subchannel_call_ref((p))
+#define GRPC_SUBCHANNEL_CALL_UNREF(p, r) grpc_subchannel_call_unref((p))
+#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS
+#endif
+
+void grpc_subchannel_ref(grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+void grpc_subchannel_unref(grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+void grpc_subchannel_call_ref(grpc_subchannel_call *call GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+void grpc_subchannel_call_unref(grpc_subchannel_call *call GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
/** construct a call (possibly asynchronously) */
void grpc_subchannel_create_call(grpc_subchannel *subchannel,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 01:51:44 +0000