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9 years ago
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c27e082c4c
167 changed files with 5017 additions and 1205 deletions
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include "src/core/lib/iomgr/endpoint.h" |
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typedef struct endpoint_ll_node { |
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grpc_endpoint *ep; |
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struct endpoint_ll_node *next; |
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} endpoint_ll_node; |
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static endpoint_ll_node *head = NULL; |
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static gpr_mu g_endpoint_mutex; |
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static bool g_init_done = false; |
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void grpc_initialize_network_status_monitor() { |
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g_init_done = true; |
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gpr_mu_init(&g_endpoint_mutex); |
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// TODO(makarandd): Install callback with OS to monitor network status.
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} |
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void grpc_destroy_network_status_monitor() { |
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for (endpoint_ll_node *curr = head; curr != NULL;) { |
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endpoint_ll_node *next = curr->next; |
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gpr_free(curr); |
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curr = next; |
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} |
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gpr_mu_destroy(&g_endpoint_mutex); |
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} |
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void grpc_network_status_register_endpoint(grpc_endpoint *ep) { |
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if (!g_init_done) { |
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grpc_initialize_network_status_monitor(); |
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} |
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gpr_mu_lock(&g_endpoint_mutex); |
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if (head == NULL) { |
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head = (endpoint_ll_node *)gpr_malloc(sizeof(endpoint_ll_node)); |
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head->ep = ep; |
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head->next = NULL; |
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} else { |
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endpoint_ll_node *prev_head = head; |
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head = (endpoint_ll_node *)gpr_malloc(sizeof(endpoint_ll_node)); |
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head->ep = ep; |
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head->next = prev_head; |
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} |
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gpr_mu_unlock(&g_endpoint_mutex); |
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} |
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void grpc_network_status_unregister_endpoint(grpc_endpoint *ep) { |
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gpr_mu_lock(&g_endpoint_mutex); |
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GPR_ASSERT(head); |
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bool found = false; |
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endpoint_ll_node *prev = head; |
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// if we're unregistering the head, just move head to the next
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if (ep == head->ep) { |
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head = head->next; |
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gpr_free(prev); |
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found = true; |
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} else { |
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for (endpoint_ll_node *curr = head->next; curr != NULL; curr = curr->next) { |
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if (ep == curr->ep) { |
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prev->next = curr->next; |
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gpr_free(curr); |
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found = true; |
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break; |
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} |
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prev = curr; |
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} |
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} |
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gpr_mu_unlock(&g_endpoint_mutex); |
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GPR_ASSERT(found); |
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} |
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|
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// Walk the linked-list from head and execute shutdown. It is possible that
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// other threads might be in the process of shutdown as well, but that has
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// no side effect since endpoint shutdown is idempotent.
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void grpc_network_status_shutdown_all_endpoints() { |
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gpr_mu_lock(&g_endpoint_mutex); |
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if (head == NULL) { |
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gpr_mu_unlock(&g_endpoint_mutex); |
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return; |
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} |
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
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for (endpoint_ll_node *curr = head; curr != NULL; curr = curr->next) { |
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curr->ep->vtable->shutdown(&exec_ctx, curr->ep); |
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} |
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gpr_mu_unlock(&g_endpoint_mutex); |
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grpc_exec_ctx_finish(&exec_ctx); |
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} |
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@ -0,0 +1,41 @@ |
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/*
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* * Redistributions in binary form must reproduce the above |
||||
* copyright notice, this list of conditions and the following disclaimer |
||||
* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
||||
* contributors may be used to endorse or promote products derived from |
||||
* this software without specific prior written permission. |
||||
* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#ifndef GRPC_CORE_LIB_IOMGR_NETWORK_STATUS_TRACKER_H |
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#define GRPC_CORE_LIB_IOMGR_NETWORK_STATUS_TRACKER_H |
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#include "src/core/lib/iomgr/endpoint.h" |
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void grpc_network_status_register_endpoint(grpc_endpoint *ep); |
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void grpc_network_status_unregister_endpoint(grpc_endpoint *ep); |
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void grpc_network_status_shutdown_all_endpoints(); |
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#endif /* GRPC_CORE_LIB_IOMGR_NETWORK_STATUS_TRACKER_H */ |
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