1 /* 2 * 3 * Copyright 2018 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H 20 #define GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <grpc/grpc.h> 25 #include <grpc/support/sync.h> 26 27 #include "src/core/lib/gprpp/thd.h" 28 #include "src/core/lib/iomgr/pollset_set.h" 29 #include "src/core/lib/surface/completion_queue.h" 30 31 /** 32 * Main struct containing ALTS shared resources used when 33 * employing the dedicated completion queue and thread. 34 */ 35 typedef struct alts_shared_resource_dedicated { 36 grpc_core::Thread thread; 37 grpc_completion_queue* cq; 38 grpc_pollset_set* interested_parties; 39 grpc_cq_completion storage; 40 gpr_mu mu; 41 grpc_channel* channel; 42 } alts_shared_resource_dedicated; 43 44 /* This method returns the address of alts_shared_resource_dedicated 45 * object shared by all TSI handshakes. 46 */ 47 alts_shared_resource_dedicated* grpc_alts_get_shared_resource_dedicated(void); 48 49 /** 50 * This method destroys the alts_shared_resource_dedicated object 51 * shared by all TSI handshakes. The application is responsible for 52 * invoking the API before calling grpc_shutdown(). 53 */ 54 void grpc_alts_shared_resource_dedicated_shutdown(); 55 56 /** 57 * This method initializes the alts_shared_resource_dedicated object 58 * shared by all TSI handshakes. The application is responsible for 59 * invoking the API after calling grpc_init(); 60 */ 61 void grpc_alts_shared_resource_dedicated_init(); 62 63 /** 64 * This method populates various fields of the alts_shared_resource_dedicated 65 * object shared by all TSI handshakes and start the dedicated thread. 66 * The API will be invoked by the caller in a lazy manner. That is, 67 * it will get invoked when ALTS TSI handshake occurs for the first time. 68 */ 69 void grpc_alts_shared_resource_dedicated_start( 70 const char* handshaker_service_url); 71 72 #endif /* GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H \ 73 */ 74