/* Public function. Stops and destroys a grpc_tcp_server. */
void grpc_tcp_server_destroy(grpc_tcp_server *s,
void (*shutdown_complete)(void *shutdown_done_arg),
void *shutdown_complete_arg) {
size_t i;
int immediately_done = 0;
gpr_mu_lock(&s->mu);
s->shutdown_complete = shutdown_complete
? shutdown_complete
: dont_care_about_shutdown_completion;
s->shutdown_complete_arg = shutdown_complete_arg;
/* First, shutdown all fd's. This will queue abortion calls for all
of the pending accepts due to the normal operation mechanism. */
if (s->active_ports == 0) {
immediately_done = 1;
}
for (i = 0; i < s->nports; i++) {
server_port *sp = &s->ports[i];
sp->shutting_down = 1;
grpc_winsocket_shutdown(sp->socket);
}
gpr_mu_unlock(&s->mu);
if (immediately_done) {
finish_shutdown(s);
}
}
/* Public function. Stops and destroys a grpc_tcp_server. */
void grpc_tcp_server_destroy(grpc_tcp_server *s,
void (*shutdown_done)(void *shutdown_done_arg),
void *shutdown_done_arg) {
size_t i;
gpr_mu_lock(&s->mu);
/* First, shutdown all fd's. This will queue abortion calls for all
of the pending accepts due to the normal operation mechanism. */
for (i = 0; i < s->nports; i++) {
server_port *sp = &s->ports[i];
sp->shutting_down = 1;
s->iomgr_callbacks_pending += grpc_winsocket_shutdown(sp->socket);
}
/* This happens asynchronously. Wait while that happens. */
while (s->active_ports || s->iomgr_callbacks_pending) {
gpr_cv_wait(&s->cv, &s->mu, gpr_inf_future(GPR_CLOCK_REALTIME));
}
gpr_mu_unlock(&s->mu);
/* Now that the accepts have been aborted, we can destroy the sockets.
The IOCP won't get notified on these, so we can flag them as already
closed by the system. */
for (i = 0; i < s->nports; i++) {
server_port *sp = &s->ports[i];
grpc_winsocket_orphan(sp->socket);
}
gpr_free(s->ports);
gpr_free(s);
if (shutdown_done) {
shutdown_done(shutdown_done_arg);
}
}
static void on_alarm(void *acp, int success) {
async_connect *ac = acp;
gpr_mu_lock(&ac->mu);
if (ac->socket != NULL && success) {
grpc_winsocket_shutdown(ac->socket);
}
async_connect_cleanup(ac);
}
static void on_alarm(grpc_exec_ctx *exec_ctx, void *acp, int occured) {
async_connect *ac = acp;
gpr_mu_lock(&ac->mu);
/* If the alarm didn't occur, it got cancelled. */
if (ac->socket != NULL && occured) {
grpc_winsocket_shutdown(ac->socket);
}
async_connect_unlock_and_cleanup(ac);
}
/* Initiates a shutdown of the TCP endpoint. This will queue abort callbacks
for the potential read and write operations. It is up to the caller to
guarantee this isn't called in parallel to a read or write request, so
we're not going to protect against these. However the IO Completion Port
callback will happen from another thread, so we need to protect against
concurrent access of the data structure in that regard. */
static void win_shutdown(grpc_endpoint *ep) {
grpc_tcp *tcp = (grpc_tcp *) ep;
gpr_mu_lock(&tcp->mu);
/* At that point, what may happen is that we're already inside the IOCP
callback. See the comments in on_read and on_write. */
tcp->shutting_down = 1;
grpc_winsocket_shutdown(tcp->socket);
gpr_mu_unlock(&tcp->mu);
}
static void on_alarm(grpc_exec_ctx *exec_ctx, void *acp, grpc_error *error) {
async_connect *ac = acp;
gpr_mu_lock(&ac->mu);
grpc_winsocket *socket = ac->socket;
ac->socket = NULL;
if (socket != NULL) {
grpc_winsocket_shutdown(socket);
}
async_connect_unlock_and_cleanup(exec_ctx, ac, socket);
}
/* Initiates a shutdown of the TCP endpoint. This will queue abort callbacks
for the potential read and write operations. It is up to the caller to
guarantee this isn't called in parallel to a read or write request, so
we're not going to protect against these. However the IO Completion Port
callback will happen from another thread, so we need to protect against
concurrent access of the data structure in that regard. */
static void win_shutdown(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
grpc_error *why) {
grpc_tcp *tcp = (grpc_tcp *)ep;
gpr_mu_lock(&tcp->mu);
/* At that point, what may happen is that we're already inside the IOCP
callback. See the comments in on_read and on_write. */
if (!tcp->shutting_down) {
tcp->shutting_down = 1;
tcp->shutdown_error = why;
} else {
GRPC_ERROR_UNREF(why);
}
grpc_winsocket_shutdown(tcp->socket);
gpr_mu_unlock(&tcp->mu);
grpc_resource_user_shutdown(exec_ctx, tcp->resource_user);
}
static void tcp_server_destroy(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) {
int immediately_done = 0;
grpc_tcp_listener *sp;
gpr_mu_lock(&s->mu);
/* First, shutdown all fd's. This will queue abortion calls for all
of the pending accepts due to the normal operation mechanism. */
if (s->active_ports == 0) {
immediately_done = 1;
}
for (sp = s->head; sp; sp = sp->next) {
sp->shutting_down = 1;
grpc_winsocket_shutdown(sp->socket);
}
gpr_mu_unlock(&s->mu);
if (immediately_done) {
finish_shutdown(exec_ctx, s);
}
}
void grpc_tcp_server_destroy(grpc_tcp_server *s) {
size_t i;
gpr_mu_lock(&s->mu);
/* shutdown all fd's */
for (i = 0; i < s->nports; i++) {
grpc_winsocket_shutdown(s->ports[i].socket);
}
/* wait while that happens */
while (s->active_ports) {
gpr_cv_wait(&s->cv, &s->mu, gpr_inf_future);
}
gpr_mu_unlock(&s->mu);
/* delete ALL the things */
for (i = 0; i < s->nports; i++) {
server_port *sp = &s->ports[i];
grpc_winsocket_orphan(sp->socket);
}
gpr_free(s->ports);
gpr_free(s);
}
