Boost Interprocess 找不到 boost/config/user.hpp
Posted
技术标签:
【中文标题】Boost Interprocess 找不到 boost/config/user.hpp【英文标题】:Boost Interprocess cannot find boost/config/user.hpp 【发布时间】:2018-04-12 13:06:13 【问题描述】:我正在编译一个 Boost Interprocess 示例:
#include <interprocess/shared_memory_object.hpp>
#include <interprocess/mapped_region.hpp>
#include <cstring>
#include <cstdlib>
#include <string>
int main(int argc, char *argv[])
using namespace boost::interprocess;
if(argc == 1) //Parent process
//Remove shared memory on construction and destruction
struct shm_remove
shm_remove() shared_memory_object::remove("MySharedMemory");
~shm_remove() shared_memory_object::remove("MySharedMemory");
remover;
//Create a shared memory object.
shared_memory_object shm (create_only, "MySharedMemory", read_write);
//Set size
shm.truncate(1000);
//Map the whole shared memory in this process
mapped_region region(shm, read_write);
//Write all the memory to 1
std::memset(region.get_address(), 1, region.get_size());
//Launch child process
std::string s(argv[0]); s += " child ";
if(0 != std::system(s.c_str()))
return 1;
else
//Open already created shared memory object.
shared_memory_object shm (open_only, "MySharedMemory", read_only);
//Map the whole shared memory in this process
mapped_region region(shm, read_only);
//Check that memory was initialized to 1
char *mem = static_cast<char*>(region.get_address());
for(std::size_t i = 0; i < region.get_size(); ++i)
if(*mem++ != 1)
return 1; //Error checking memory
return 0;
但我得到一个编译错误:
fatal error: boost/config.hpp: No such file or directory
现在该文件确实存在,我能够通过包含丢失的头文件来修复错误:
g++ -c -g -I../../../space/dist/boost/boost_1_66_0/boost -I../../../space/dist/boost/boost_1_66_0/libs -include ../../../space/dist/boost/boost_1_66_0/boost/config.hpp -MMD -MP -MF "build/Debug/GNU-Linux/main.o.d" -o build/Debug/GNU-Linux/main.o main.cpp
但在这样做之后,我现在收到另一个关于类似文件的错误:
./../../../space/dist/boost/boost_1_66_0/boost/config.hpp:30:29: fatal error: boost/config/user.hpp: No such file or directory
# include BOOST_USER_CONFIG
发生了什么事?为什么编译不出来?
【问题讨论】:
为什么不将标题包含在 boost 目录中:#include <boost/interprocess/shared_memory_object.hpp>
?
@vasek 我从 Boost 文档中获取了示例:boost.org/doc/libs/1_55_0/doc/html/interprocess/… 所以我认为我不需要?
当我将包含更改为boost/interprocess
并使用-lrt
标志编译时,它是works for me。
但在这些示例中,您可以看到包含 boost/
前缀。
g++ -lrt -c -g -I../../../space/dist/boost/boost_1_66_0/boost/interprocess -MMD -MP -MF "build/Debug/GNU- Linux/main.o.d" -o build/Debug/GNU-Linux/main.o main.cpp main.cpp:1:49:致命错误:interprocess/shared_memory_object.hpp:没有这样的文件或目录#include 您必须将 boost 库的包含设置为具有boost
子目录的目录,以便找到所有内部 boost 包含。
因此,如果您将构建命令行更改为
g++ -lrt -c -g -I../../../space/dist/boost/boost_1_66_0 -MMD -MP -MF "build/Debug/GNU-Linux/main.o.d" -o build/Debug/GNU-Linux/main.o main.cpp main.cpp
并更改您的包含以匹配您的代码will compile 的提升文档:
#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/mapped_region.hpp>
【讨论】:
以上是关于Boost Interprocess 找不到 boost/config/user.hpp的主要内容,如果未能解决你的问题,请参考以下文章
boost::interprocess::string 转换为 char*
boost::interprocess_mutex 与进程本地 boost::mutex
boost::interprocess::interprocess_condition::wait 在等待时不会原子地解锁互斥锁