void grpc_mdctx_global_shutdown(void) {
size_t i;
for (i = 0; i < MDTAB_SHARD_COUNT; i++) {
mdtab_shard *shard = &g_mdtab_shard[i];
gpr_mu_destroy(&shard->mu);
gc_mdtab(shard);
/* TODO(ctiller): GPR_ASSERT(shard->count == 0); */
if (shard->count != 0) {
gpr_log(GPR_DEBUG, "WARNING: %" PRIuPTR " metadata elements were leaked",
shard->count);
if (grpc_iomgr_abort_on_leaks()) {
abort();
}
}
gpr_free(shard->elems);
}
for (i = 0; i < STRTAB_SHARD_COUNT; i++) {
strtab_shard *shard = &g_strtab_shard[i];
gpr_mu_destroy(&shard->mu);
/* TODO(ctiller): GPR_ASSERT(shard->count == 0); */
if (shard->count != 0) {
gpr_log(GPR_DEBUG, "WARNING: %" PRIuPTR " metadata strings were leaked",
shard->count);
for (size_t j = 0; j < shard->capacity; j++) {
for (internal_string *s = shard->strs[j]; s; s = s->bucket_next) {
gpr_log(GPR_DEBUG, "LEAKED: %s",
grpc_mdstr_as_c_string((grpc_mdstr *)s));
}
}
if (grpc_iomgr_abort_on_leaks()) {
abort();
}
}
gpr_free(shard->strs);
}
}
void grpc_mdctx_global_shutdown(grpc_exec_ctx *exec_ctx) {
for (size_t i = 0; i < SHARD_COUNT; i++) {
mdtab_shard *shard = &g_shards[i];
gpr_mu_destroy(&shard->mu);
gc_mdtab(exec_ctx, shard);
/* TODO(ctiller): GPR_ASSERT(shard->count == 0); */
if (shard->count != 0) {
gpr_log(GPR_DEBUG, "WARNING: %" PRIuPTR " metadata elements were leaked",
shard->count);
if (grpc_iomgr_abort_on_leaks()) {
abort();
}
}
gpr_free(shard->elems);
}
}
void grpc_slice_intern_shutdown(void) {
for (size_t i = 0; i < SHARD_COUNT; i++) {
slice_shard *shard = &g_shards[i];
gpr_mu_destroy(&shard->mu);
/* TODO(ctiller): GPR_ASSERT(shard->count == 0); */
if (shard->count != 0) {
gpr_log(GPR_DEBUG, "WARNING: %" PRIuPTR " metadata strings were leaked",
shard->count);
for (size_t j = 0; j < shard->capacity; j++) {
for (interned_slice_refcount *s = shard->strs[j]; s;
s = s->bucket_next) {
char *text =
grpc_dump_slice(materialize(s), GPR_DUMP_HEX | GPR_DUMP_ASCII);
gpr_log(GPR_DEBUG, "LEAKED: %s", text);
gpr_free(text);
}
}
if (grpc_iomgr_abort_on_leaks()) {
abort();
}
}
gpr_free(shard->strs);
}
}
void grpc_iomgr_shutdown(void) {
gpr_timespec shutdown_deadline = gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_seconds(10, GPR_TIMESPAN));
gpr_timespec last_warning_time = gpr_now(GPR_CLOCK_REALTIME);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_iomgr_platform_flush();
gpr_mu_lock(&g_mu);
g_shutdown = 1;
while (g_root_object.next != &g_root_object) {
if (gpr_time_cmp(
gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), last_warning_time),
gpr_time_from_seconds(1, GPR_TIMESPAN)) >= 0) {
if (g_root_object.next != &g_root_object) {
gpr_log(GPR_DEBUG, "Waiting for %d iomgr objects to be destroyed",
count_objects());
}
last_warning_time = gpr_now(GPR_CLOCK_REALTIME);
}
if (grpc_timer_check(&exec_ctx, gpr_inf_future(GPR_CLOCK_MONOTONIC),
NULL)) {
gpr_mu_unlock(&g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(&g_mu);
continue;
}
if (g_root_object.next != &g_root_object) {
gpr_timespec short_deadline = gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_millis(100, GPR_TIMESPAN));
if (gpr_cv_wait(&g_rcv, &g_mu, short_deadline)) {
if (gpr_time_cmp(gpr_now(GPR_CLOCK_REALTIME), shutdown_deadline) > 0) {
if (g_root_object.next != &g_root_object) {
gpr_log(GPR_DEBUG,
"Failed to free %d iomgr objects before shutdown deadline: "
"memory leaks are likely",
count_objects());
dump_objects("LEAKED");
if (grpc_iomgr_abort_on_leaks()) {
abort();
}
}
break;
}
}
}
}
gpr_mu_unlock(&g_mu);
grpc_timer_list_shutdown(&exec_ctx);
grpc_exec_ctx_finish(&exec_ctx);
/* ensure all threads have left g_mu */
gpr_mu_lock(&g_mu);
gpr_mu_unlock(&g_mu);
grpc_pollset_global_shutdown();
grpc_iomgr_platform_shutdown();
grpc_exec_ctx_global_shutdown();
gpr_mu_destroy(&g_mu);
gpr_cv_destroy(&g_rcv);
}
