Craig Tiller
8 years ago
parent
56fcfa8238
commit
819cd88bd7
33 changed files with 696 additions and 66 deletions
@ -0,0 +1,116 @@ |
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/*
|
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* |
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* Copyright 2017, 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 |
||||
* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
||||
* 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 |
||||
* 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 |
||||
* 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 |
||||
* 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 "src/core/lib/iomgr/port.h" |
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#include "src/core/lib/iomgr/is_epollexclusive_available.h" |
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#ifdef GRPC_LINUX_EPOLL |
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#include <grpc/support/log.h> |
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#include <errno.h> |
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#include <sys/eventfd.h> |
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#include <unistd.h> |
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#include "src/core/lib/iomgr/sys_epoll_wrapper.h" |
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|
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/* This polling engine is only relevant on linux kernels supporting epoll() */ |
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bool grpc_is_epollexclusive_available(void) { |
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static bool logged_why_not = false; |
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int fd = epoll_create1(EPOLL_CLOEXEC); |
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if (fd < 0) { |
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if (!logged_why_not) { |
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gpr_log(GPR_ERROR, |
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"epoll_create1 failed with error: %d. Not using epollex polling " |
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"engine.", |
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fd); |
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logged_why_not = true; |
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} |
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return false; |
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} |
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int evfd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); |
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if (evfd < 0) { |
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if (!logged_why_not) { |
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gpr_log(GPR_ERROR, |
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"eventfd failed with error: %d. Not using epollex polling " |
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"engine.", |
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fd); |
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logged_why_not = true; |
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} |
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close(fd); |
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return false; |
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} |
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struct epoll_event ev = { |
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/* choose events that should cause an error on
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EPOLLEXCLUSIVE enabled kernels - specifically the combination of |
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EPOLLONESHOT and EPOLLEXCLUSIVE */ |
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.events = (uint32_t)(EPOLLET | EPOLLIN | EPOLLEXCLUSIVE | EPOLLONESHOT), |
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.data.ptr = NULL}; |
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if (epoll_ctl(fd, EPOLL_CTL_ADD, evfd, &ev) != 0) { |
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if (errno != EINVAL) { |
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if (!logged_why_not) { |
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gpr_log( |
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GPR_ERROR, |
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"epoll_ctl with EPOLLEXCLUSIVE | EPOLLONESHOT failed with error: " |
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"%d. Not using epollex polling engine.", |
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errno); |
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logged_why_not = true; |
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} |
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close(fd); |
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close(evfd); |
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return false; |
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} |
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} else { |
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if (!logged_why_not) { |
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gpr_log(GPR_ERROR, |
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"epoll_ctl with EPOLLEXCLUSIVE | EPOLLONESHOT succeeded. This is " |
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"evidence of no EPOLLEXCLUSIVE support. Not using " |
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"epollex polling engine."); |
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logged_why_not = true; |
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} |
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close(fd); |
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close(evfd); |
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return false; |
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} |
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close(evfd); |
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close(fd); |
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return true; |
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} |
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#else |
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bool grpc_is_epollexclusive_available(void) { return false; } |
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#endif |
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@ -0,0 +1,41 @@ |
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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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#ifndef GRPC_CORE_LIB_IOMGR_IS_EPOLLEXCLUSIVE_AVAILABLE_H |
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#define GRPC_CORE_LIB_IOMGR_IS_EPOLLEXCLUSIVE_AVAILABLE_H |
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#include <stdbool.h> |
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bool grpc_is_epollexclusive_available(void); |
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#endif /* GRPC_CORE_LIB_IOMGR_IS_EPOLLEXCLUSIVE_AVAILABLE_H */ |
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@ -0,0 +1,43 @@ |
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/*
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* |
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* Copyright 2017, 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 |
||||
* 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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#ifndef GRPC_CORE_LIB_IOMGR_SYS_EPOLL_WRAPPER_H |
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#define GRPC_CORE_LIB_IOMGR_SYS_EPOLL_WRAPPER_H |
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#include <sys/epoll.h> |
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#ifndef EPOLLEXCLUSIVE |
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#define EPOLLEXCLUSIVE (1 << 28) |
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#endif |
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#endif /* GRPC_CORE_LIB_IOMGR_SYS_EPOLL_WRAPPER_H */ |
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@ -0,0 +1,38 @@ |
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/*
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* |
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* Copyright 2017, 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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#include "src/core/lib/iomgr/is_epollexclusive_available.h" |
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int main(int argc, char **argv) { |
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return grpc_is_epollexclusive_available() ? 0 : 1; |
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} |
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@ -0,0 +1,170 @@ |
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<?xml version="1.0" encoding="utf-8"?> |
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<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> |
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<ItemGroup Label="ProjectConfigurations"> |
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<ProjectConfiguration Include="Debug|Win32"> |
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<Configuration>Debug</Configuration> |
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<Platform>Win32</Platform> |
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</ProjectConfiguration> |
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<ProjectConfiguration Include="Debug|x64"> |
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<Configuration>Debug</Configuration> |
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<Platform>x64</Platform> |
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</ProjectConfiguration> |
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<ProjectConfiguration Include="Release|Win32"> |
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<Configuration>Release</Configuration> |
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<Platform>Win32</Platform> |
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</ProjectConfiguration> |
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<ProjectConfiguration Include="Release|x64"> |
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<Configuration>Release</Configuration> |
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<Platform>x64</Platform> |
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</ProjectConfiguration> |
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</ItemGroup> |
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<PropertyGroup Label="Globals"> |
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<ProjectGuid>{03306445-5BA0-289C-02AB-513DE6C52124}</ProjectGuid> |
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<IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected> |
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<IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir> |
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</PropertyGroup> |
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> |
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<PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration"> |
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<PlatformToolset>v100</PlatformToolset> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration"> |
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<PlatformToolset>v110</PlatformToolset> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration"> |
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<PlatformToolset>v120</PlatformToolset> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration"> |
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<PlatformToolset>v140</PlatformToolset> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration"> |
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<ConfigurationType>StaticLibrary</ConfigurationType> |
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<UseDebugLibraries>true</UseDebugLibraries> |
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<CharacterSet>Unicode</CharacterSet> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration"> |
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<ConfigurationType>StaticLibrary</ConfigurationType> |
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<UseDebugLibraries>false</UseDebugLibraries> |
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<WholeProgramOptimization>true</WholeProgramOptimization> |
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<CharacterSet>Unicode</CharacterSet> |
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</PropertyGroup> |
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" /> |
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<ImportGroup Label="ExtensionSettings"> |
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</ImportGroup> |
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<ImportGroup Label="PropertySheets"> |
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" /> |
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<Import Project="$(SolutionDir)\..\vsprojects\global.props" /> |
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<Import Project="$(SolutionDir)\..\vsprojects\winsock.props" /> |
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</ImportGroup> |
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<PropertyGroup Label="UserMacros" /> |
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<PropertyGroup Condition="'$(Configuration)'=='Debug'"> |
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<TargetName>check_epollexclusive</TargetName> |
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</PropertyGroup> |
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<PropertyGroup Condition="'$(Configuration)'=='Release'"> |
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<TargetName>check_epollexclusive</TargetName> |
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</PropertyGroup> |
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'"> |
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<ClCompile> |
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<PrecompiledHeader>NotUsing</PrecompiledHeader> |
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<WarningLevel>Level3</WarningLevel> |
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<Optimization>Disabled</Optimization> |
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<PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
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<SDLCheck>true</SDLCheck> |
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<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary> |
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<TreatWarningAsError>true</TreatWarningAsError> |
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<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
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<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
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</ClCompile> |
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<Link> |
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<SubSystem>Console</SubSystem> |
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<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
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<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'"> |
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<ClCompile> |
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<WarningLevel>Level3</WarningLevel> |
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<Optimization>Disabled</Optimization> |
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<PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
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<SDLCheck>true</SDLCheck> |
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<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary> |
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<TreatWarningAsError>true</TreatWarningAsError> |
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<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
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<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
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</ClCompile> |
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<Link> |
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<SubSystem>Console</SubSystem> |
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<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
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<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'"> |
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<PrecompiledHeader>NotUsing</PrecompiledHeader> |
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<WarningLevel>Level3</WarningLevel> |
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<Optimization>MaxSpeed</Optimization> |
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<PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
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<FunctionLevelLinking>true</FunctionLevelLinking> |
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<IntrinsicFunctions>true</IntrinsicFunctions> |
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<SDLCheck>true</SDLCheck> |
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<RuntimeLibrary>MultiThreaded</RuntimeLibrary> |
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<TreatWarningAsError>true</TreatWarningAsError> |
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<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
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<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
||||
</ClCompile> |
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<Link> |
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<SubSystem>Console</SubSystem> |
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<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
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<EnableCOMDATFolding>true</EnableCOMDATFolding> |
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<WarningLevel>Level3</WarningLevel> |
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<Optimization>MaxSpeed</Optimization> |
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<PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
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<FunctionLevelLinking>true</FunctionLevelLinking> |
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<IntrinsicFunctions>true</IntrinsicFunctions> |
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<SDLCheck>true</SDLCheck> |
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<RuntimeLibrary>MultiThreaded</RuntimeLibrary> |
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<TreatWarningAsError>true</TreatWarningAsError> |
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<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
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<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
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</ClCompile> |
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<Link> |
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<SubSystem>Console</SubSystem> |
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<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
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<EnableCOMDATFolding>true</EnableCOMDATFolding> |
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<OptimizeReferences>true</OptimizeReferences> |
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<ClCompile Include="$(SolutionDir)\..\test\build\check_epollexclusive.c"> |
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<Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project> |
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<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild"> |
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||||
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@ -0,0 +1,18 @@ |
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||||
|
||||
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