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-rw-r--r--src/core/ext/transport/chttp2/transport/chttp2_transport.c159
-rw-r--r--src/core/ext/transport/chttp2/transport/hpack_encoder.c1
-rw-r--r--src/core/ext/transport/chttp2/transport/internal.h29
-rw-r--r--src/core/lib/iomgr/tcp_uv.c10
-rw-r--r--src/core/lib/surface/call.c17
-rw-r--r--src/core/lib/surface/server.c3
-rw-r--r--src/core/plugin_registry/grpc_cronet_plugin_registry.c4
7 files changed, 213 insertions, 10 deletions
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 68e01e5888..da4c7dc7b2 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -48,16 +48,19 @@
#include "src/core/ext/transport/chttp2/transport/varint.h"
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/http/parser.h"
+#include "src/core/lib/iomgr/timer.h"
#include "src/core/lib/iomgr/workqueue.h"
#include "src/core/lib/profiling/timers.h"
#include "src/core/lib/slice/slice_internal.h"
#include "src/core/lib/slice/slice_string_helpers.h"
+#include "src/core/lib/support/env.h"
#include "src/core/lib/support/string.h"
#include "src/core/lib/transport/error_utils.h"
#include "src/core/lib/transport/http2_errors.h"
#include "src/core/lib/transport/static_metadata.h"
#include "src/core/lib/transport/status_conversion.h"
#include "src/core/lib/transport/timeout_encoding.h"
+#include "src/core/lib/transport/transport.h"
#include "src/core/lib/transport/transport_impl.h"
#define DEFAULT_WINDOW 65535
@@ -66,6 +69,10 @@
#define MAX_WRITE_BUFFER_SIZE (64 * 1024 * 1024)
#define DEFAULT_MAX_HEADER_LIST_SIZE (16 * 1024)
+#define DEFAULT_KEEPALIVE_TIME_SECOND INT_MAX
+#define DEFAULT_KEEPALIVE_TIMEOUT_SECOND 20
+#define DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS false
+
#define MAX_CLIENT_STREAM_ID 0x7fffffffu
int grpc_http_trace = 0;
int grpc_flowctl_trace = 0;
@@ -139,6 +146,16 @@ static void send_ping_locked(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
#define DEFAULT_MIN_TIME_BETWEEN_PINGS_MS 0
#define DEFAULT_MAX_PINGS_BETWEEN_DATA 3
+/** keepalive-relevant functions */
+static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+
/*******************************************************************************
* CONSTRUCTION/DESTRUCTION/REFCOUNTING
*/
@@ -253,6 +270,17 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
grpc_combiner_scheduler(t->combiner, false));
grpc_closure_init(&t->finish_bdp_ping_locked, finish_bdp_ping_locked, t,
grpc_combiner_scheduler(t->combiner, false));
+ grpc_closure_init(&t->init_keepalive_ping_locked, init_keepalive_ping_locked,
+ t, grpc_combiner_scheduler(t->combiner, false));
+ grpc_closure_init(&t->start_keepalive_ping_locked,
+ start_keepalive_ping_locked, t,
+ grpc_combiner_scheduler(t->combiner, false));
+ grpc_closure_init(&t->finish_keepalive_ping_locked,
+ finish_keepalive_ping_locked, t,
+ grpc_combiner_scheduler(t->combiner, false));
+ grpc_closure_init(&t->keepalive_watchdog_fired_locked,
+ keepalive_watchdog_fired_locked, t,
+ grpc_combiner_scheduler(t->combiner, false));
grpc_bdp_estimator_init(&t->bdp_estimator, t->peer_string);
t->last_pid_update = gpr_now(GPR_CLOCK_MONOTONIC);
@@ -314,6 +342,18 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
gpr_time_from_millis(DEFAULT_MIN_TIME_BETWEEN_PINGS_MS, GPR_TIMESPAN),
};
+ /* client-side keepalive setting */
+ t->keepalive_time =
+ DEFAULT_KEEPALIVE_TIME_SECOND == INT_MAX
+ ? gpr_inf_future(GPR_TIMESPAN)
+ : gpr_time_from_seconds(DEFAULT_KEEPALIVE_TIME_SECOND, GPR_TIMESPAN);
+ t->keepalive_timeout =
+ DEFAULT_KEEPALIVE_TIMEOUT_SECOND == INT_MAX
+ ? gpr_inf_future(GPR_TIMESPAN)
+ : gpr_time_from_seconds(DEFAULT_KEEPALIVE_TIMEOUT_SECOND,
+ GPR_TIMESPAN);
+ t->keepalive_permit_without_calls = DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS;
+
if (channel_args) {
for (i = 0; i < channel_args->num_args; i++) {
if (0 == strcmp(channel_args->args[i].key,
@@ -361,6 +401,28 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
strcmp(channel_args->args[i].key, GRPC_ARG_HTTP2_BDP_PROBE)) {
t->enable_bdp_probe = grpc_channel_arg_get_integer(
&channel_args->args[i], (grpc_integer_options){1, 0, 1});
+ } else if (0 == strcmp(channel_args->args[i].key,
+ GRPC_ARG_HTTP2_KEEPALIVE_TIME)) {
+ const int value = grpc_channel_arg_get_integer(
+ &channel_args->args[i],
+ (grpc_integer_options){DEFAULT_KEEPALIVE_TIME_SECOND, 1, INT_MAX});
+ t->keepalive_time = value == INT_MAX
+ ? gpr_inf_future(GPR_TIMESPAN)
+ : gpr_time_from_seconds(value, GPR_TIMESPAN);
+ } else if (0 == strcmp(channel_args->args[i].key,
+ GRPC_ARG_HTTP2_KEEPALIVE_TIMEOUT)) {
+ const int value = grpc_channel_arg_get_integer(
+ &channel_args->args[i],
+ (grpc_integer_options){DEFAULT_KEEPALIVE_TIMEOUT_SECOND, 0,
+ INT_MAX});
+ t->keepalive_timeout = value == INT_MAX
+ ? gpr_inf_future(GPR_TIMESPAN)
+ : gpr_time_from_seconds(value, GPR_TIMESPAN);
+ } else if (0 == strcmp(channel_args->args[i].key,
+ GRPC_ARG_HTTP2_KEEPALIVE_PERMIT_WITHOUT_CALLS)) {
+ t->keepalive_permit_without_calls =
+ (uint32_t)grpc_channel_arg_get_integer(
+ &channel_args->args[i], (grpc_integer_options){0, 0, 1});
} else {
static const struct {
const char *channel_arg_name;
@@ -412,6 +474,16 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
t->ping_state.pings_before_data_required =
t->ping_policy.max_pings_without_data;
+ /** Start client-side keepalive pings */
+ if (t->is_client) {
+ t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING;
+ GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
+ grpc_timer_init(
+ exec_ctx, &t->keepalive_ping_timer,
+ gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time),
+ &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC));
+ }
+
grpc_chttp2_initiate_write(exec_ctx, t, false, "init");
post_benign_reclaimer(exec_ctx, t);
}
@@ -456,6 +528,22 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx,
connectivity_state_set(exec_ctx, t, GRPC_CHANNEL_SHUTDOWN,
GRPC_ERROR_REF(error), "close_transport");
grpc_endpoint_shutdown(exec_ctx, t->ep, GRPC_ERROR_REF(error));
+ if (t->is_client) {
+ switch (t->keepalive_state) {
+ case GRPC_CHTTP2_KEEPALIVE_STATE_WAITING: {
+ grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer);
+ break;
+ }
+ case GRPC_CHTTP2_KEEPALIVE_STATE_PINGING: {
+ grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer);
+ grpc_timer_cancel(exec_ctx, &t->keepalive_watchdog_timer);
+ break;
+ }
+ case GRPC_CHTTP2_KEEPALIVE_STATE_DYING: {
+ break;
+ }
+ }
+ }
/* flush writable stream list to avoid dangling references */
grpc_chttp2_stream *s;
@@ -1983,6 +2071,77 @@ static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp,
GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "bdp_ping");
}
+static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ grpc_chttp2_transport *t = arg;
+ GPR_ASSERT(t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING);
+ if (error == GRPC_ERROR_NONE && !(t->destroying || t->closed)) {
+ if (t->keepalive_permit_without_calls || t->stream_map.count > 0) {
+ t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_PINGING;
+ GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive ping end");
+ send_ping_locked(exec_ctx, t, GRPC_CHTTP2_PING_ON_NEXT_WRITE,
+ &t->start_keepalive_ping_locked,
+ &t->finish_keepalive_ping_locked);
+ } else {
+ GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
+ grpc_timer_init(
+ exec_ctx, &t->keepalive_ping_timer,
+ gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time),
+ &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC));
+ }
+ }
+ GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "init keepalive ping");
+}
+
+static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ grpc_chttp2_transport *t = arg;
+ GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive watchdog");
+ grpc_timer_init(
+ exec_ctx, &t->keepalive_watchdog_timer,
+ gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_timeout),
+ &t->keepalive_watchdog_fired_locked, gpr_now(GPR_CLOCK_MONOTONIC));
+}
+
+static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ grpc_chttp2_transport *t = arg;
+ if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) {
+ if (error == GRPC_ERROR_NONE) {
+ t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING;
+ grpc_timer_cancel(exec_ctx, &t->keepalive_watchdog_timer);
+ GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
+ grpc_timer_init(
+ exec_ctx, &t->keepalive_ping_timer,
+ gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time),
+ grpc_closure_create(init_keepalive_ping_locked, t,
+ grpc_combiner_scheduler(t->combiner, false)),
+ gpr_now(GPR_CLOCK_MONOTONIC));
+ }
+ }
+ GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keepalive ping end");
+}
+
+static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ grpc_chttp2_transport *t = arg;
+ if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) {
+ if (error == GRPC_ERROR_NONE) {
+ t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING;
+ close_transport_locked(exec_ctx, t,
+ GRPC_ERROR_CREATE("keepalive watchdog timeout"));
+ }
+ } else {
+ /** The watchdog timer should have been cancelled by
+ finish_keepalive_ping_locked. */
+ if (error != GRPC_ERROR_CANCELLED) {
+ gpr_log(GPR_ERROR, "keepalive_ping_end state error: %d (expect: %d)",
+ t->keepalive_state, GRPC_CHTTP2_KEEPALIVE_STATE_PINGING);
+ }
+ }
+ GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keepalive watchdog");
+}
+
/*******************************************************************************
* CALLBACK LOOP
*/
diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.c b/src/core/ext/transport/chttp2/transport/hpack_encoder.c
index 63df8e135f..84586cd998 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_encoder.c
+++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.c
@@ -173,6 +173,7 @@ static void add_header_data(framer_state *st, grpc_slice slice) {
static uint8_t *add_tiny_header_data(framer_state *st, size_t len) {
ensure_space(st, len);
+ st->stats->header_bytes += len;
return grpc_slice_buffer_tiny_add(st->output, len);
}
diff --git a/src/core/ext/transport/chttp2/transport/internal.h b/src/core/ext/transport/chttp2/transport/internal.h
index 5d41f4bfda..d26812ad6b 100644
--- a/src/core/ext/transport/chttp2/transport/internal.h
+++ b/src/core/ext/transport/chttp2/transport/internal.h
@@ -50,6 +50,7 @@
#include "src/core/ext/transport/chttp2/transport/stream_map.h"
#include "src/core/lib/iomgr/combiner.h"
#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/timer.h"
#include "src/core/lib/transport/bdp_estimator.h"
#include "src/core/lib/transport/connectivity_state.h"
#include "src/core/lib/transport/pid_controller.h"
@@ -208,6 +209,12 @@ struct grpc_chttp2_incoming_byte_stream {
grpc_closure finished_action;
};
+typedef enum {
+ GRPC_CHTTP2_KEEPALIVE_STATE_WAITING,
+ GRPC_CHTTP2_KEEPALIVE_STATE_PINGING,
+ GRPC_CHTTP2_KEEPALIVE_STATE_DYING,
+} grpc_chttp2_keepalive_state;
+
struct grpc_chttp2_transport {
grpc_transport base; /* must be first */
gpr_refcount refs;
@@ -382,6 +389,28 @@ struct grpc_chttp2_transport {
grpc_closure benign_reclaimer_locked;
/** destructive cleanup closure */
grpc_closure destructive_reclaimer_locked;
+
+ /* keep-alive ping support */
+ /** Closure to initialize a keepalive ping */
+ grpc_closure init_keepalive_ping_locked;
+ /** Closure to run when the keepalive ping is sent */
+ grpc_closure start_keepalive_ping_locked;
+ /** Cousure to run when the keepalive ping ack is received */
+ grpc_closure finish_keepalive_ping_locked;
+ /** Closrue to run when the keepalive ping timeouts */
+ grpc_closure keepalive_watchdog_fired_locked;
+ /** timer to initiate ping events */
+ grpc_timer keepalive_ping_timer;
+ /** watchdog to kill the transport when waiting for the keepalive ping */
+ grpc_timer keepalive_watchdog_timer;
+ /** time duration in between pings */
+ gpr_timespec keepalive_time;
+ /** grace period for a ping to complete before watchdog kicks in */
+ gpr_timespec keepalive_timeout;
+ /** if keepalive pings are allowed when there's no outstanding streams */
+ bool keepalive_permit_without_calls;
+ /** keep-alive state machine state */
+ grpc_chttp2_keepalive_state keepalive_state;
};
typedef enum {
diff --git a/src/core/lib/iomgr/tcp_uv.c b/src/core/lib/iomgr/tcp_uv.c
index 5fb398c50b..5541c62068 100644
--- a/src/core/lib/iomgr/tcp_uv.c
+++ b/src/core/lib/iomgr/tcp_uv.c
@@ -79,8 +79,6 @@ typedef struct {
grpc_pollset *pollset;
} grpc_tcp;
-static void uv_close_callback(uv_handle_t *handle) { gpr_free(handle); }
-
static void tcp_free(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
grpc_resource_user_unref(exec_ctx, tcp->resource_user);
gpr_free(tcp);
@@ -119,6 +117,13 @@ static void tcp_unref(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
static void tcp_ref(grpc_tcp *tcp) { gpr_ref(&tcp->refcount); }
#endif
+static void uv_close_callback(uv_handle_t *handle) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_tcp *tcp = handle->data;
+ TCP_UNREF(&exec_ctx, tcp, "destroy");
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
static void alloc_uv_buf(uv_handle_t *handle, size_t suggested_size,
uv_buf_t *buf) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -313,7 +318,6 @@ static void uv_destroy(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) {
grpc_network_status_unregister_endpoint(ep);
grpc_tcp *tcp = (grpc_tcp *)ep;
uv_close((uv_handle_t *)tcp->handle, uv_close_callback);
- TCP_UNREF(exec_ctx, tcp, "destroy");
}
static char *uv_get_peer(grpc_endpoint *ep) {
diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index 0f03d6d9cb..cc57654ea4 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -112,7 +112,7 @@ static received_status unpack_received_status(gpr_atm atm) {
.error = (grpc_error *)(atm & ~(gpr_atm)1)};
}
-#define MAX_ERRORS_PER_BATCH 3
+#define MAX_ERRORS_PER_BATCH 4
typedef struct batch_control {
grpc_call *call;
@@ -254,7 +254,7 @@ static void set_status_from_error(grpc_exec_ctx *exec_ctx, grpc_call *call,
static void process_data_after_md(grpc_exec_ctx *exec_ctx, batch_control *bctl);
static void post_batch_completion(grpc_exec_ctx *exec_ctx, batch_control *bctl);
static void add_batch_error(grpc_exec_ctx *exec_ctx, batch_control *bctl,
- grpc_error *error);
+ grpc_error *error, bool has_cancelled);
static void add_init_error(grpc_error **composite, grpc_error *new) {
if (new == GRPC_ERROR_NONE) return;
@@ -1222,6 +1222,11 @@ static void receiving_stream_ready(grpc_exec_ctx *exec_ctx, void *bctlp,
grpc_call *call = bctl->call;
gpr_mu_lock(&bctl->call->mu);
if (error != GRPC_ERROR_NONE) {
+ if (call->receiving_stream != NULL) {
+ grpc_byte_stream_destroy(exec_ctx, call->receiving_stream);
+ call->receiving_stream = NULL;
+ }
+ add_batch_error(exec_ctx, bctl, GRPC_ERROR_REF(error), true);
cancel_with_error(exec_ctx, call, STATUS_FROM_SURFACE,
GRPC_ERROR_REF(error));
}
@@ -1288,10 +1293,10 @@ static void validate_filtered_metadata(grpc_exec_ctx *exec_ctx,
}
static void add_batch_error(grpc_exec_ctx *exec_ctx, batch_control *bctl,
- grpc_error *error) {
+ grpc_error *error, bool has_cancelled) {
if (error == GRPC_ERROR_NONE) return;
int idx = (int)gpr_atm_no_barrier_fetch_add(&bctl->num_errors, 1);
- if (idx == 0) {
+ if (idx == 0 && !has_cancelled) {
cancel_with_error(exec_ctx, bctl->call, STATUS_FROM_CORE,
GRPC_ERROR_REF(error));
}
@@ -1305,7 +1310,7 @@ static void receiving_initial_metadata_ready(grpc_exec_ctx *exec_ctx,
gpr_mu_lock(&call->mu);
- add_batch_error(exec_ctx, bctl, GRPC_ERROR_REF(error));
+ add_batch_error(exec_ctx, bctl, GRPC_ERROR_REF(error), false);
if (error == GRPC_ERROR_NONE) {
grpc_metadata_batch *md =
&call->metadata_batch[1 /* is_receiving */][0 /* is_trailing */];
@@ -1342,7 +1347,7 @@ static void finish_batch(grpc_exec_ctx *exec_ctx, void *bctlp,
grpc_error *error) {
batch_control *bctl = bctlp;
- add_batch_error(exec_ctx, bctl, GRPC_ERROR_REF(error));
+ add_batch_error(exec_ctx, bctl, GRPC_ERROR_REF(error), false);
finish_batch_step(exec_ctx, bctl);
}
diff --git a/src/core/lib/surface/server.c b/src/core/lib/surface/server.c
index d6a401ae82..b360579553 100644
--- a/src/core/lib/surface/server.c
+++ b/src/core/lib/surface/server.c
@@ -540,7 +540,8 @@ static void publish_new_rpc(grpc_exec_ctx *exec_ctx, void *arg,
&calld->kill_zombie_closure, kill_zombie,
grpc_call_stack_element(grpc_call_get_call_stack(calld->call), 0),
grpc_schedule_on_exec_ctx);
- grpc_closure_sched(exec_ctx, &calld->kill_zombie_closure, error);
+ grpc_closure_sched(exec_ctx, &calld->kill_zombie_closure,
+ GRPC_ERROR_REF(error));
return;
}
diff --git a/src/core/plugin_registry/grpc_cronet_plugin_registry.c b/src/core/plugin_registry/grpc_cronet_plugin_registry.c
index d339ed327f..c97f47b397 100644
--- a/src/core/plugin_registry/grpc_cronet_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_cronet_plugin_registry.c
@@ -37,10 +37,14 @@ extern void grpc_chttp2_plugin_init(void);
extern void grpc_chttp2_plugin_shutdown(void);
extern void grpc_client_channel_init(void);
extern void grpc_client_channel_shutdown(void);
+extern void grpc_load_reporting_plugin_init(void);
+extern void grpc_load_reporting_plugin_shutdown(void);
void grpc_register_built_in_plugins(void) {
grpc_register_plugin(grpc_chttp2_plugin_init,
grpc_chttp2_plugin_shutdown);
grpc_register_plugin(grpc_client_channel_init,
grpc_client_channel_shutdown);
+ grpc_register_plugin(grpc_load_reporting_plugin_init,
+ grpc_load_reporting_plugin_shutdown);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-05 22:37:59 +0000