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Dynamic loading of OpenSSL (facebookincubator#302)
Summary: Pull Request resolved: facebookincubator#302 Test Plan: Imported from OSS Reviewed By: malfet Differential Revision: D27781296 Pulled By: pbelevich fbshipit-source-id: 4544d62518ea22017df11d728cc530888360d398
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,17 +1,27 @@ | ||
| if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") | ||
| message(WARNING "Gloo doesn't support OSX (uses epoll)") | ||
| else() | ||
| if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Linux") | ||
| message(WARNING "Gloo TCP-TLS transport is supported only on Linux(uses epoll API)") | ||
| else () | ||
| list(APPEND GLOO_TRANSPORT_SRCS | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/context.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/device.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/openssl.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/pair.cc" | ||
| ) | ||
| list(APPEND GLOO_TRANSPORT_HDRS | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/context.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/device.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/openssl.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/pair.h" | ||
| ) | ||
| if (USE_TCP_OPENSSL_LOAD) | ||
| list(APPEND GLOO_TRANSPORT_SRCS | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/context.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/device.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/pair.cc" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/dynamic_library.cc" | ||
| ) | ||
| list(APPEND GLOO_TRANSPORT_HDRS | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/context.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/device.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/pair.h" | ||
| "${CMAKE_CURRENT_SOURCE_DIR}/dynamic_library.h" | ||
| ) | ||
| endif() | ||
| endif () | ||
| endif () | ||
|
|
||
| set(GLOO_TRANSPORT_SRCS ${GLOO_TRANSPORT_SRCS} PARENT_SCOPE) | ||
| set(GLOO_TRANSPORT_HDRS ${GLOO_TRANSPORT_HDRS} PARENT_SCOPE) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| #include "dynamic_library.h" | ||
|
|
||
| #include <dlfcn.h> | ||
| #include <stdexcept> | ||
|
|
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| DynamicLibrary::DynamicLibrary(const char *name, const char *alt_name) | ||
| : lib_name(name) { | ||
| handle = dlopen(name, RTLD_LOCAL | RTLD_NOW); | ||
| if (!handle) { | ||
| if (alt_name == nullptr) { | ||
| throw std::runtime_error(dlerror()); | ||
| } else { | ||
| handle = dlopen(alt_name, RTLD_LOCAL | RTLD_NOW); | ||
| if (!handle) { | ||
| throw std::runtime_error(dlerror()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void *DynamicLibrary::sym(const char *name) { | ||
| void *res = dlsym(handle, name); | ||
| if (res == nullptr) { | ||
| throw std::runtime_error("Can't find " + std::string(name) + " in " + | ||
| lib_name + ":" + dlerror()); | ||
| } | ||
| return res; | ||
| } | ||
|
|
||
| DynamicLibrary::~DynamicLibrary() { | ||
| if (!handle) | ||
| return; | ||
| dlclose(handle); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /** | ||
| * Copyright (c) 2021-present, Facebook, Inc. | ||
| * All rights reserved. | ||
| * | ||
| * This source code is licensed under the BSD-style license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
|
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| #pragma once | ||
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| #include <string> | ||
|
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| struct DynamicLibrary { | ||
| DynamicLibrary(const DynamicLibrary &) = delete; | ||
|
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| void operator=(const DynamicLibrary &) = delete; | ||
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| DynamicLibrary(const char *name, const char *alt_name); | ||
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| void *sym(const char *name); | ||
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| ~DynamicLibrary(); | ||
|
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| private: | ||
| const std::string lib_name; | ||
| void *handle = nullptr; | ||
| }; |
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