diff options
Diffstat (limited to 'src/core/ext/transport/inproc/inproc_transport.cc')
| -rw-r--r-- | src/core/ext/transport/inproc/inproc_transport.cc | 580 |
1 files changed, 280 insertions, 300 deletions
diff --git a/src/core/ext/transport/inproc/inproc_transport.cc b/src/core/ext/transport/inproc/inproc_transport.cc index b0ca7f8207..61968de4d5 100644 --- a/src/core/ext/transport/inproc/inproc_transport.cc +++ b/src/core/ext/transport/inproc/inproc_transport.cc @@ -40,18 +40,68 @@ if (grpc_inproc_trace.enabled()) gpr_log(__VA_ARGS__); \ } while (0) -static grpc_slice g_empty_slice; -static grpc_slice g_fake_path_key; -static grpc_slice g_fake_path_value; -static grpc_slice g_fake_auth_key; -static grpc_slice g_fake_auth_value; +namespace { +grpc_slice g_empty_slice; +grpc_slice g_fake_path_key; +grpc_slice g_fake_path_value; +grpc_slice g_fake_auth_key; +grpc_slice g_fake_auth_value; + +struct inproc_stream; +bool cancel_stream_locked(inproc_stream* s, grpc_error* error); +void op_state_machine(void* arg, grpc_error* error); +void log_metadata(const grpc_metadata_batch* md_batch, bool is_client, + bool is_initial); +grpc_error* fill_in_metadata(inproc_stream* s, + const grpc_metadata_batch* metadata, + uint32_t flags, grpc_metadata_batch* out_md, + uint32_t* outflags, bool* markfilled); + +struct shared_mu { + shared_mu() { + // Share one lock between both sides since both sides get affected + gpr_mu_init(&mu); + gpr_ref_init(&refs, 2); + } -typedef struct { gpr_mu mu; gpr_refcount refs; -} shared_mu; +}; + +struct inproc_transport { + inproc_transport(const grpc_transport_vtable* vtable, shared_mu* mu, + bool is_client) + : mu(mu), is_client(is_client) { + base.vtable = vtable; + // Start each side of transport with 2 refs since they each have a ref + // to the other + gpr_ref_init(&refs, 2); + grpc_connectivity_state_init(&connectivity, GRPC_CHANNEL_READY, + is_client ? "inproc_client" : "inproc_server"); + } + + ~inproc_transport() { + grpc_connectivity_state_destroy(&connectivity); + if (gpr_unref(&mu->refs)) { + gpr_free(mu); + } + } + + void ref() { + INPROC_LOG(GPR_INFO, "ref_transport %p", this); + gpr_ref(&refs); + } + + void unref() { + INPROC_LOG(GPR_INFO, "unref_transport %p", this); + if (!gpr_unref(&refs)) { + return; + } + INPROC_LOG(GPR_INFO, "really_destroy_transport %p", this); + this->~inproc_transport(); + gpr_free(this); + } -typedef struct inproc_transport { grpc_transport base; shared_mu* mu; gpr_refcount refs; @@ -60,128 +110,174 @@ typedef struct inproc_transport { void (*accept_stream_cb)(void* user_data, grpc_transport* transport, const void* server_data); void* accept_stream_data; - bool is_closed; + bool is_closed = false; struct inproc_transport* other_side; - struct inproc_stream* stream_list; -} inproc_transport; + struct inproc_stream* stream_list = nullptr; +}; + +struct inproc_stream { + inproc_stream(inproc_transport* t, grpc_stream_refcount* refcount, + const void* server_data, gpr_arena* arena) + : t(t), refs(refcount), arena(arena) { + // Ref this stream right now for ctor and list. + ref("inproc_init_stream:init"); + ref("inproc_init_stream:list"); + + grpc_metadata_batch_init(&to_read_initial_md); + grpc_metadata_batch_init(&to_read_trailing_md); + GRPC_CLOSURE_INIT(&op_closure, op_state_machine, this, + grpc_schedule_on_exec_ctx); + grpc_metadata_batch_init(&write_buffer_initial_md); + grpc_metadata_batch_init(&write_buffer_trailing_md); + + stream_list_prev = nullptr; + gpr_mu_lock(&t->mu->mu); + stream_list_next = t->stream_list; + if (t->stream_list) { + t->stream_list->stream_list_prev = this; + } + t->stream_list = this; + gpr_mu_unlock(&t->mu->mu); + + if (!server_data) { + t->ref(); + inproc_transport* st = t->other_side; + st->ref(); + other_side = nullptr; // will get filled in soon + // Pass the client-side stream address to the server-side for a ref + ref("inproc_init_stream:clt"); // ref it now on behalf of server + // side to avoid destruction + INPROC_LOG(GPR_INFO, "calling accept stream cb %p %p", + st->accept_stream_cb, st->accept_stream_data); + (*st->accept_stream_cb)(st->accept_stream_data, &st->base, (void*)this); + } else { + // This is the server-side and is being called through accept_stream_cb + inproc_stream* cs = (inproc_stream*)server_data; + other_side = cs; + // Ref the server-side stream on behalf of the client now + ref("inproc_init_stream:srv"); + + // Now we are about to affect the other side, so lock the transport + // to make sure that it doesn't get destroyed + gpr_mu_lock(&t->mu->mu); + cs->other_side = this; + // Now transfer from the other side's write_buffer if any to the to_read + // buffer + if (cs->write_buffer_initial_md_filled) { + fill_in_metadata(this, &cs->write_buffer_initial_md, + cs->write_buffer_initial_md_flags, &to_read_initial_md, + &to_read_initial_md_flags, &to_read_initial_md_filled); + deadline = GPR_MIN(deadline, cs->write_buffer_deadline); + grpc_metadata_batch_clear(&cs->write_buffer_initial_md); + cs->write_buffer_initial_md_filled = false; + } + if (cs->write_buffer_trailing_md_filled) { + fill_in_metadata(this, &cs->write_buffer_trailing_md, 0, + &to_read_trailing_md, nullptr, + &to_read_trailing_md_filled); + grpc_metadata_batch_clear(&cs->write_buffer_trailing_md); + cs->write_buffer_trailing_md_filled = false; + } + if (cs->write_buffer_cancel_error != GRPC_ERROR_NONE) { + cancel_other_error = cs->write_buffer_cancel_error; + cs->write_buffer_cancel_error = GRPC_ERROR_NONE; + } + + gpr_mu_unlock(&t->mu->mu); + } + } + + ~inproc_stream() { + GRPC_ERROR_UNREF(write_buffer_cancel_error); + GRPC_ERROR_UNREF(cancel_self_error); + GRPC_ERROR_UNREF(cancel_other_error); + + if (recv_inited) { + grpc_slice_buffer_destroy_internal(&recv_message); + } + + t->unref(); + + if (closure_at_destroy) { + GRPC_CLOSURE_SCHED(closure_at_destroy, GRPC_ERROR_NONE); + } + } + +#ifndef NDEBUG +#define STREAM_REF(refs, reason) grpc_stream_ref(refs, reason) +#define STREAM_UNREF(refs, reason) grpc_stream_unref(refs, reason) +#else +#define STREAM_REF(refs, reason) grpc_stream_ref(refs) +#define STREAM_UNREF(refs, reason) grpc_stream_unref(refs) +#endif + void ref(const char* reason) { + INPROC_LOG(GPR_INFO, "ref_stream %p %s", this, reason); + STREAM_REF(refs, reason); + } + + void unref(const char* reason) { + INPROC_LOG(GPR_INFO, "unref_stream %p %s", this, reason); + STREAM_UNREF(refs, reason); + } +#undef STREAM_REF +#undef STREAM_UNREF -typedef struct inproc_stream { inproc_transport* t; grpc_metadata_batch to_read_initial_md; - uint32_t to_read_initial_md_flags; - bool to_read_initial_md_filled; + uint32_t to_read_initial_md_flags = 0; + bool to_read_initial_md_filled = false; grpc_metadata_batch to_read_trailing_md; - bool to_read_trailing_md_filled; - bool ops_needed; - bool op_closure_scheduled; + bool to_read_trailing_md_filled = false; + bool ops_needed = false; + bool op_closure_scheduled = false; grpc_closure op_closure; // Write buffer used only during gap at init time when client-side // stream is set up but server side stream is not yet set up grpc_metadata_batch write_buffer_initial_md; - bool write_buffer_initial_md_filled; - uint32_t write_buffer_initial_md_flags; - grpc_millis write_buffer_deadline; + bool write_buffer_initial_md_filled = false; + uint32_t write_buffer_initial_md_flags = 0; + grpc_millis write_buffer_deadline = GRPC_MILLIS_INF_FUTURE; grpc_metadata_batch write_buffer_trailing_md; - bool write_buffer_trailing_md_filled; - grpc_error* write_buffer_cancel_error; + bool write_buffer_trailing_md_filled = false; + grpc_error* write_buffer_cancel_error = GRPC_ERROR_NONE; struct inproc_stream* other_side; - bool other_side_closed; // won't talk anymore - bool write_buffer_other_side_closed; // on hold + bool other_side_closed = false; // won't talk anymore + bool write_buffer_other_side_closed = false; // on hold grpc_stream_refcount* refs; - grpc_closure* closure_at_destroy; + grpc_closure* closure_at_destroy = nullptr; gpr_arena* arena; - grpc_transport_stream_op_batch* send_message_op; - grpc_transport_stream_op_batch* send_trailing_md_op; - grpc_transport_stream_op_batch* recv_initial_md_op; - grpc_transport_stream_op_batch* recv_message_op; - grpc_transport_stream_op_batch* recv_trailing_md_op; + grpc_transport_stream_op_batch* send_message_op = nullptr; + grpc_transport_stream_op_batch* send_trailing_md_op = nullptr; + grpc_transport_stream_op_batch* recv_initial_md_op = nullptr; + grpc_transport_stream_op_batch* recv_message_op = nullptr; + grpc_transport_stream_op_batch* recv_trailing_md_op = nullptr; grpc_slice_buffer recv_message; grpc_core::ManualConstructor<grpc_core::SliceBufferByteStream> recv_stream; - bool recv_inited; + bool recv_inited = false; - bool initial_md_sent; - bool trailing_md_sent; - bool initial_md_recvd; - bool trailing_md_recvd; + bool initial_md_sent = false; + bool trailing_md_sent = false; + bool initial_md_recvd = false; + bool trailing_md_recvd = false; - bool closed; + bool closed = false; - grpc_error* cancel_self_error; - grpc_error* cancel_other_error; + grpc_error* cancel_self_error = GRPC_ERROR_NONE; + grpc_error* cancel_other_error = GRPC_ERROR_NONE; - grpc_millis deadline; + grpc_millis deadline = GRPC_MILLIS_INF_FUTURE; - bool listed; + bool listed = true; struct inproc_stream* stream_list_prev; struct inproc_stream* stream_list_next; -} inproc_stream; - -static bool cancel_stream_locked(inproc_stream* s, grpc_error* error); -static void op_state_machine(void* arg, grpc_error* error); - -static void ref_transport(inproc_transport* t) { - INPROC_LOG(GPR_INFO, "ref_transport %p", t); - gpr_ref(&t->refs); -} - -static void really_destroy_transport(inproc_transport* t) { - INPROC_LOG(GPR_INFO, "really_destroy_transport %p", t); - grpc_connectivity_state_destroy(&t->connectivity); - if (gpr_unref(&t->mu->refs)) { - gpr_free(t->mu); - } - gpr_free(t); -} - -static void unref_transport(inproc_transport* t) { - INPROC_LOG(GPR_INFO, "unref_transport %p", t); - if (gpr_unref(&t->refs)) { - really_destroy_transport(t); - } -} - -#ifndef NDEBUG -#define STREAM_REF(refs, reason) grpc_stream_ref(refs, reason) -#define STREAM_UNREF(refs, reason) grpc_stream_unref(refs, reason) -#else -#define STREAM_REF(refs, reason) grpc_stream_ref(refs) -#define STREAM_UNREF(refs, reason) grpc_stream_unref(refs) -#endif - -static void ref_stream(inproc_stream* s, const char* reason) { - INPROC_LOG(GPR_INFO, "ref_stream %p %s", s, reason); - STREAM_REF(s->refs, reason); -} - -static void unref_stream(inproc_stream* s, const char* reason) { - INPROC_LOG(GPR_INFO, "unref_stream %p %s", s, reason); - STREAM_UNREF(s->refs, reason); -} - -static void really_destroy_stream(inproc_stream* s) { - INPROC_LOG(GPR_INFO, "really_destroy_stream %p", s); +}; - GRPC_ERROR_UNREF(s->write_buffer_cancel_error); - GRPC_ERROR_UNREF(s->cancel_self_error); - GRPC_ERROR_UNREF(s->cancel_other_error); - - if (s->recv_inited) { - grpc_slice_buffer_destroy_internal(&s->recv_message); - } - - unref_transport(s->t); - - if (s->closure_at_destroy) { - GRPC_CLOSURE_SCHED(s->closure_at_destroy, GRPC_ERROR_NONE); - } -} - -static void log_metadata(const grpc_metadata_batch* md_batch, bool is_client, - bool is_initial) { +void log_metadata(const grpc_metadata_batch* md_batch, bool is_client, + bool is_initial) { for (grpc_linked_mdelem* md = md_batch->list.head; md != nullptr; md = md->next) { char* key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); @@ -193,10 +289,10 @@ static void log_metadata(const grpc_metadata_batch* md_batch, bool is_client, } } -static grpc_error* fill_in_metadata(inproc_stream* s, - const grpc_metadata_batch* metadata, - uint32_t flags, grpc_metadata_batch* out_md, - uint32_t* outflags, bool* markfilled) { +grpc_error* fill_in_metadata(inproc_stream* s, + const grpc_metadata_batch* metadata, + uint32_t flags, grpc_metadata_batch* out_md, + uint32_t* outflags, bool* markfilled) { if (grpc_inproc_trace.enabled()) { log_metadata(metadata, s->t->is_client, outflags != nullptr); } @@ -221,109 +317,16 @@ static grpc_error* fill_in_metadata(inproc_stream* s, return error; } -static int init_stream(grpc_transport* gt, grpc_stream* gs, - grpc_stream_refcount* refcount, const void* server_data, - gpr_arena* arena) { +int init_stream(grpc_transport* gt, grpc_stream* gs, + grpc_stream_refcount* refcount, const void* server_data, + gpr_arena* arena) { INPROC_LOG(GPR_INFO, "init_stream %p %p %p", gt, gs, server_data); inproc_transport* t = reinterpret_cast<inproc_transport*>(gt); - inproc_stream* s = reinterpret_cast<inproc_stream*>(gs); - s->arena = arena; - - s->refs = refcount; - // Ref this stream right now - ref_stream(s, "inproc_init_stream:init"); - - grpc_metadata_batch_init(&s->to_read_initial_md); - s->to_read_initial_md_flags = 0; - s->to_read_initial_md_filled = false; - grpc_metadata_batch_init(&s->to_read_trailing_md); - s->to_read_trailing_md_filled = false; - grpc_metadata_batch_init(&s->write_buffer_initial_md); - s->write_buffer_initial_md_flags = 0; - s->write_buffer_initial_md_filled = false; - grpc_metadata_batch_init(&s->write_buffer_trailing_md); - s->write_buffer_trailing_md_filled = false; - s->ops_needed = false; - s->op_closure_scheduled = false; - GRPC_CLOSURE_INIT(&s->op_closure, op_state_machine, s, - grpc_schedule_on_exec_ctx); - s->t = t; - s->closure_at_destroy = nullptr; - s->other_side_closed = false; - - s->initial_md_sent = s->trailing_md_sent = s->initial_md_recvd = - s->trailing_md_recvd = false; - - s->closed = false; - - s->cancel_self_error = GRPC_ERROR_NONE; - s->cancel_other_error = GRPC_ERROR_NONE; - s->write_buffer_cancel_error = GRPC_ERROR_NONE; - s->deadline = GRPC_MILLIS_INF_FUTURE; - s->write_buffer_deadline = GRPC_MILLIS_INF_FUTURE; - - s->stream_list_prev = nullptr; - gpr_mu_lock(&t->mu->mu); - s->listed = true; - ref_stream(s, "inproc_init_stream:list"); - s->stream_list_next = t->stream_list; - if (t->stream_list) { - t->stream_list->stream_list_prev = s; - } - t->stream_list = s; - gpr_mu_unlock(&t->mu->mu); - - if (!server_data) { - ref_transport(t); - inproc_transport* st = t->other_side; - ref_transport(st); - s->other_side = nullptr; // will get filled in soon - // Pass the client-side stream address to the server-side for a ref - ref_stream(s, "inproc_init_stream:clt"); // ref it now on behalf of server - // side to avoid destruction - INPROC_LOG(GPR_INFO, "calling accept stream cb %p %p", st->accept_stream_cb, - st->accept_stream_data); - (*st->accept_stream_cb)(st->accept_stream_data, &st->base, (void*)s); - } else { - // This is the server-side and is being called through accept_stream_cb - inproc_stream* cs = (inproc_stream*)server_data; - s->other_side = cs; - // Ref the server-side stream on behalf of the client now - ref_stream(s, "inproc_init_stream:srv"); - - // Now we are about to affect the other side, so lock the transport - // to make sure that it doesn't get destroyed - gpr_mu_lock(&s->t->mu->mu); - cs->other_side = s; - // Now transfer from the other side's write_buffer if any to the to_read - // buffer - if (cs->write_buffer_initial_md_filled) { - fill_in_metadata(s, &cs->write_buffer_initial_md, - cs->write_buffer_initial_md_flags, - &s->to_read_initial_md, &s->to_read_initial_md_flags, - &s->to_read_initial_md_filled); - s->deadline = GPR_MIN(s->deadline, cs->write_buffer_deadline); - grpc_metadata_batch_clear(&cs->write_buffer_initial_md); - cs->write_buffer_initial_md_filled = false; - } - if (cs->write_buffer_trailing_md_filled) { - fill_in_metadata(s, &cs->write_buffer_trailing_md, 0, - &s->to_read_trailing_md, nullptr, - &s->to_read_trailing_md_filled); - grpc_metadata_batch_clear(&cs->write_buffer_trailing_md); - cs->write_buffer_trailing_md_filled = false; - } - if (cs->write_buffer_cancel_error != GRPC_ERROR_NONE) { - s->cancel_other_error = cs->write_buffer_cancel_error; - cs->write_buffer_cancel_error = GRPC_ERROR_NONE; - } - - gpr_mu_unlock(&s->t->mu->mu); - } + new (gs) inproc_stream(t, refcount, server_data, arena); return 0; // return value is not important } -static void close_stream_locked(inproc_stream* s) { +void close_stream_locked(inproc_stream* s) { if (!s->closed) { // Release the metadata that we would have written out grpc_metadata_batch_destroy(&s->write_buffer_initial_md); @@ -341,21 +344,21 @@ static void close_stream_locked(inproc_stream* s) { n->stream_list_prev = p; } s->listed = false; - unref_stream(s, "close_stream:list"); + s->unref("close_stream:list"); } s->closed = true; - unref_stream(s, "close_stream:closing"); + s->unref("close_stream:closing"); } } // This function means that we are done talking/listening to the other side -static void close_other_side_locked(inproc_stream* s, const char* reason) { +void close_other_side_locked(inproc_stream* s, const char* reason) { if (s->other_side != nullptr) { // First release the metadata that came from the other side's arena grpc_metadata_batch_destroy(&s->to_read_initial_md); grpc_metadata_batch_destroy(&s->to_read_trailing_md); - unref_stream(s->other_side, reason); + s->other_side->unref(reason); s->other_side_closed = true; s->other_side = nullptr; } else if (!s->other_side_closed) { @@ -367,9 +370,9 @@ static void close_other_side_locked(inproc_stream* s, const char* reason) { // this stream_op_batch is only one of the pending operations for this // stream. This is called when one of the pending operations for the stream // is done and about to be NULLed out -static void complete_if_batch_end_locked(inproc_stream* s, grpc_error* error, - grpc_transport_stream_op_batch* op, - const char* msg) { +void complete_if_batch_end_locked(inproc_stream* s, grpc_error* error, + grpc_transport_stream_op_batch* op, + const char* msg) { int is_sm = static_cast<int>(op == s->send_message_op); int is_stm = static_cast<int>(op == s->send_trailing_md_op); // TODO(vjpai): We should not consider the recv ops here, since they @@ -386,8 +389,7 @@ static void complete_if_batch_end_locked(inproc_stream* s, grpc_error* error, } } -static void maybe_schedule_op_closure_locked(inproc_stream* s, - grpc_error* error) { +void maybe_schedule_op_closure_locked(inproc_stream* s, grpc_error* error) { if (s && s->ops_needed && !s->op_closure_scheduled) { GRPC_CLOSURE_SCHED(&s->op_closure, GRPC_ERROR_REF(error)); s->op_closure_scheduled = true; @@ -395,7 +397,7 @@ static void maybe_schedule_op_closure_locked(inproc_stream* s, } } -static void fail_helper_locked(inproc_stream* s, grpc_error* error) { +void fail_helper_locked(inproc_stream* s, grpc_error* error) { INPROC_LOG(GPR_INFO, "op_state_machine %p fail_helper", s); // If we're failing this side, we need to make sure that // we also send or have already sent trailing metadata @@ -525,8 +527,7 @@ static void fail_helper_locked(inproc_stream* s, grpc_error* error) { // that the incoming byte stream's next() call will always return // synchronously. That assumption is true today but may not always be // true in the future. -static void message_transfer_locked(inproc_stream* sender, - inproc_stream* receiver) { +void message_transfer_locked(inproc_stream* sender, inproc_stream* receiver) { size_t remaining = sender->send_message_op->payload->send_message.send_message->length(); if (receiver->recv_inited) { @@ -572,7 +573,7 @@ static void message_transfer_locked(inproc_stream* sender, sender->send_message_op = nullptr; } -static void op_state_machine(void* arg, grpc_error* error) { +void op_state_machine(void* arg, grpc_error* error) { // This function gets called when we have contents in the unprocessed reads // Get what we want based on our ops wanted // Schedule our appropriate closures @@ -607,10 +608,8 @@ static void op_state_machine(void* arg, grpc_error* error) { if (other->recv_message_op) { message_transfer_locked(s, other); maybe_schedule_op_closure_locked(other, GRPC_ERROR_NONE); - } else if (!s->t->is_client && - (s->trailing_md_sent || other->recv_trailing_md_op)) { - // A server send will never be matched if the client is waiting - // for trailing metadata already + } else if (!s->t->is_client && s->trailing_md_sent) { + // A server send will never be matched if the server already sent status s->send_message_op->payload->send_message.send_message.reset(); complete_if_batch_end_locked( s, GRPC_ERROR_NONE, s->send_message_op, @@ -621,11 +620,15 @@ static void op_state_machine(void* arg, grpc_error* error) { // Pause a send trailing metadata if there is still an outstanding // send message unless we know that the send message will never get // matched to a receive. This happens on the client if the server has - // already sent status. + // already sent status or on the server if the client has requested + // status if (s->send_trailing_md_op && (!s->send_message_op || (s->t->is_client && - (s->trailing_md_recvd || s->to_read_trailing_md_filled)))) { + (s->trailing_md_recvd || s->to_read_trailing_md_filled)) || + (!s->t->is_client && other && + (other->trailing_md_recvd || other->to_read_trailing_md_filled || + other->recv_trailing_md_op)))) { grpc_metadata_batch* dest = (other == nullptr) ? &s->write_buffer_trailing_md : &other->to_read_trailing_md; @@ -723,16 +726,6 @@ static void op_state_machine(void* arg, grpc_error* error) { maybe_schedule_op_closure_locked(other, GRPC_ERROR_NONE); } } - if (s->recv_trailing_md_op && s->t->is_client && other && - other->send_message_op) { - INPROC_LOG(GPR_INFO, - "op_state_machine %p scheduling trailing-metadata-ready %p", s, - GRPC_ERROR_NONE); - GRPC_CLOSURE_SCHED(s->recv_trailing_md_op->payload->recv_trailing_metadata - .recv_trailing_metadata_ready, - GRPC_ERROR_NONE); - maybe_schedule_op_closure_locked(other, GRPC_ERROR_NONE); - } if (s->to_read_trailing_md_filled) { if (s->trailing_md_recvd) { new_err = @@ -748,6 +741,7 @@ static void op_state_machine(void* arg, grpc_error* error) { if (s->recv_message_op != nullptr) { // This message needs to be wrapped up because it will never be // satisfied + *s->recv_message_op->payload->recv_message.recv_message = nullptr; INPROC_LOG(GPR_INFO, "op_state_machine %p scheduling message-ready", s); GRPC_CLOSURE_SCHED( s->recv_message_op->payload->recv_message.recv_message_ready, @@ -810,6 +804,7 @@ static void op_state_machine(void* arg, grpc_error* error) { // No further message will come on this stream, so finish off the // recv_message_op INPROC_LOG(GPR_INFO, "op_state_machine %p scheduling message-ready", s); + *s->recv_message_op->payload->recv_message.recv_message = nullptr; GRPC_CLOSURE_SCHED( s->recv_message_op->payload->recv_message.recv_message_ready, GRPC_ERROR_NONE); @@ -847,7 +842,7 @@ done: GRPC_ERROR_UNREF(new_err); } -static bool cancel_stream_locked(inproc_stream* s, grpc_error* error) { +bool cancel_stream_locked(inproc_stream* s, grpc_error* error) { bool ret = false; // was the cancel accepted INPROC_LOG(GPR_INFO, "cancel_stream %p with %s", s, grpc_error_string(error)); if (s->cancel_self_error == GRPC_ERROR_NONE) { @@ -900,10 +895,10 @@ static bool cancel_stream_locked(inproc_stream* s, grpc_error* error) { return ret; } -static void do_nothing(void* arg, grpc_error* error) {} +void do_nothing(void* arg, grpc_error* error) {} -static void perform_stream_op(grpc_transport* gt, grpc_stream* gs, - grpc_transport_stream_op_batch* op) { +void perform_stream_op(grpc_transport* gt, grpc_stream* gs, + grpc_transport_stream_op_batch* op) { INPROC_LOG(GPR_INFO, "perform_stream_op %p %p %p", gt, gs, op); inproc_stream* s = reinterpret_cast<inproc_stream*>(gs); gpr_mu* mu = &s->t->mu->mu; // save aside in case s gets closed @@ -1012,18 +1007,18 @@ static void perform_stream_op(grpc_transport* gt, grpc_stream* gs, } // We want to initiate the closure if: - // 1. We want to send a message and the other side wants to receive or end + // 1. We want to send a message and the other side wants to receive // 2. We want to send trailing metadata and there isn't an unmatched send + // or the other side wants trailing metadata // 3. We want initial metadata and the other side has sent it // 4. We want to receive a message and there is a message ready // 5. There is trailing metadata, even if nothing specifically wants // that because that can shut down the receive message as well - if ((op->send_message && other && - ((other->recv_message_op != nullptr) || - (other->recv_trailing_md_op != nullptr))) || - (op->send_trailing_metadata && !op->send_message) || + if ((op->send_message && other && other->recv_message_op != nullptr) || + (op->send_trailing_metadata && + (!s->send_message_op || (other && other->recv_trailing_md_op))) || (op->recv_initial_metadata && s->to_read_initial_md_filled) || - (op->recv_message && other && (other->send_message_op != nullptr)) || + (op->recv_message && other && other->send_message_op != nullptr) || (s->to_read_trailing_md_filled || s->trailing_md_recvd)) { if (!s->op_closure_scheduled) { GRPC_CLOSURE_SCHED(&s->op_closure, GRPC_ERROR_NONE); @@ -1083,7 +1078,7 @@ static void perform_stream_op(grpc_transport* gt, grpc_stream* gs, GRPC_ERROR_UNREF(error); } -static void close_transport_locked(inproc_transport* t) { +void close_transport_locked(inproc_transport* t) { INPROC_LOG(GPR_INFO, "close_transport %p %d", t, t->is_closed); grpc_connectivity_state_set( &t->connectivity, GRPC_CHANNEL_SHUTDOWN, @@ -1103,7 +1098,7 @@ static void close_transport_locked(inproc_transport* t) { } } -static void perform_transport_op(grpc_transport* gt, grpc_transport_op* op) { +void perform_transport_op(grpc_transport* gt, grpc_transport_op* op) { inproc_transport* t = reinterpret_cast<inproc_transport*>(gt); INPROC_LOG(GPR_INFO, "perform_transport_op %p %p", t, op); gpr_mu_lock(&t->mu->mu); @@ -1136,39 +1131,64 @@ static void perform_transport_op(grpc_transport* gt, grpc_transport_op* op) { gpr_mu_unlock(&t->mu->mu); } -static void destroy_stream(grpc_transport* gt, grpc_stream* gs, - grpc_closure* then_schedule_closure) { +void destroy_stream(grpc_transport* gt, grpc_stream* gs, + grpc_closure* then_schedule_closure) { INPROC_LOG(GPR_INFO, "destroy_stream %p %p", gs, then_schedule_closure); inproc_stream* s = reinterpret_cast<inproc_stream*>(gs); s->closure_at_destroy = then_schedule_closure; - really_destroy_stream(s); + s->~inproc_stream(); } -static void destroy_transport(grpc_transport* gt) { +void destroy_transport(grpc_transport* gt) { inproc_transport* t = reinterpret_cast<inproc_transport*>(gt); INPROC_LOG(GPR_INFO, "destroy_transport %p", t); gpr_mu_lock(&t->mu->mu); close_transport_locked(t); gpr_mu_unlock(&t->mu->mu); - unref_transport(t->other_side); - unref_transport(t); + t->other_side->unref(); + t->unref(); } /******************************************************************************* * INTEGRATION GLUE */ -static void set_pollset(grpc_transport* gt, grpc_stream* gs, - grpc_pollset* pollset) { +void set_pollset(grpc_transport* gt, grpc_stream* gs, grpc_pollset* pollset) { // Nothing to do here } -static void set_pollset_set(grpc_transport* gt, grpc_stream* gs, - grpc_pollset_set* pollset_set) { +void set_pollset_set(grpc_transport* gt, grpc_stream* gs, + grpc_pollset_set* pollset_set) { // Nothing to do here } -static grpc_endpoint* get_endpoint(grpc_transport* t) { return nullptr; } +grpc_endpoint* get_endpoint(grpc_transport* t) { return nullptr; } + +const grpc_transport_vtable inproc_vtable = { + sizeof(inproc_stream), "inproc", init_stream, + set_pollset, set_pollset_set, perform_stream_op, + perform_transport_op, destroy_stream, destroy_transport, + get_endpoint}; + +/******************************************************************************* + * Main inproc transport functions + */ +void inproc_transports_create(grpc_transport** server_transport, + const grpc_channel_args* server_args, + grpc_transport** client_transport, + const grpc_channel_args* client_args) { + INPROC_LOG(GPR_INFO, "inproc_transports_create"); + shared_mu* mu = new (gpr_malloc(sizeof(*mu))) shared_mu(); + inproc_transport* st = new (gpr_malloc(sizeof(*st))) + inproc_transport(&inproc_vtable, mu, /*is_client=*/false); + inproc_transport* ct = new (gpr_malloc(sizeof(*ct))) + inproc_transport(&inproc_vtable, mu, /*is_client=*/true); + st->other_side = ct; + ct->other_side = st; + *server_transport = reinterpret_cast<grpc_transport*>(st); + *client_transport = reinterpret_cast<grpc_transport*>(ct); +} +} // namespace /******************************************************************************* * GLOBAL INIT AND DESTROY @@ -1190,48 +1210,6 @@ void grpc_inproc_transport_init(void) { g_fake_auth_value = grpc_slice_from_static_string("inproc-fail"); } -static const grpc_transport_vtable inproc_vtable = { - sizeof(inproc_stream), "inproc", init_stream, - set_pollset, set_pollset_set, perform_stream_op, - perform_transport_op, destroy_stream, destroy_transport, - get_endpoint}; - -/******************************************************************************* - * Main inproc transport functions - */ -static void inproc_transports_create(grpc_transport** server_transport, - const grpc_channel_args* server_args, - grpc_transport** client_transport, - const grpc_channel_args* client_args) { - INPROC_LOG(GPR_INFO, "inproc_transports_create"); - inproc_transport* st = - static_cast<inproc_transport*>(gpr_zalloc(sizeof(*st))); - inproc_transport* ct = - static_cast<inproc_transport*>(gpr_zalloc(sizeof(*ct))); - // Share one lock between both sides since both sides get affected - st->mu = ct->mu = static_cast<shared_mu*>(gpr_malloc(sizeof(*st->mu))); - gpr_mu_init(&st->mu->mu); - gpr_ref_init(&st->mu->refs, 2); - st->base.vtable = &inproc_vtable; - ct->base.vtable = &inproc_vtable; - // Start each side of transport with 2 refs since they each have a ref - // to the other - gpr_ref_init(&st->refs, 2); - gpr_ref_init(&ct->refs, 2); - st->is_client = false; - ct->is_client = true; - grpc_connectivity_state_init(&st->connectivity, GRPC_CHANNEL_READY, - "inproc_server"); - grpc_connectivity_state_init(&ct->connectivity, GRPC_CHANNEL_READY, - "inproc_client"); - st->other_side = ct; - ct->other_side = st; - st->stream_list = nullptr; - ct->stream_list = nullptr; - *server_transport = reinterpret_cast<grpc_transport*>(st); - *client_transport = reinterpret_cast<grpc_transport*>(ct); -} - grpc_channel* grpc_inproc_channel_create(grpc_server* server, grpc_channel_args* args, void* reserved) { @@ -1256,7 +1234,9 @@ grpc_channel* grpc_inproc_channel_create(grpc_server* server, inproc_transports_create(&server_transport, server_args, &client_transport, client_args); - grpc_server_setup_transport(server, server_transport, nullptr, server_args); + // TODO(ncteisen): design and support channelz GetSocket for inproc. + grpc_server_setup_transport(server, server_transport, nullptr, server_args, + 0); grpc_channel* channel = grpc_channel_create( "inproc", client_args, GRPC_CLIENT_DIRECT_CHANNEL, client_transport); |