我的代码:: Blocks IDE只调用"错误:ld返回1退出状态"当我构建我的代码。我经常看到这个错误" collect2:" as" collect2:ld返回1退出状态"。我只知道这是链接器错误。所以我需要包含另一个库。
但即使是C ++,我也没有经验使用过这个IDE。
所以我不知道如何摆脱这个错误。
我想问下面的事情。
1)如何摆脱这个错误。考虑了哪些问题。
2)如何设置Build选项以适合我的代码。
注意(构建操作): 链接器设置中的链接库已添加
../../opencv-2.4.13/build/lib/libopencv_highgui.so
../../opencv-2.4.13/build/lib/libopencv_core.so
../../opencv-2.4.13/build/lib/libopencv_imgproc.so
pthread
boost_system
并且,搜索目录中的编译器是
../../opencv-2.4.13/include/opencv
../../../../usr/include/boost
#include <cv.h>
#include <cxcore.h>
#include <highgui.h>
#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/managed_mapped_file.hpp>
#include <boost/interprocess/containers/vector.hpp> // boost/containers/vector.hpp
#include <boost/interprocess/containers/string.hpp> // boost/containers/string.hpp
#include <iostream>
#include <sys/time.h>
#include <stdio.h>
// void_allocator;
namespace bip = boost::interprocess;
typedef unsigned char uchar;
//Typedefs of allocators and containers
typedef bip::managed_shared_memory::segment_manager segment_manager_t;
typedef bip::allocator<void, segment_manager_t> void_allocator;
typedef void_allocator::rebind<uchar>::other uchar_allocator;
typedef bip::vector<uchar, uchar_allocator> uchar_vector;
template <typename Alloc = std::allocator<uchar> >
struct BasicInData {
public:
BasicInData(Alloc alloc = {}) : image(alloc)
{ }
template <typename T>
BasicInData(double x, int sizeImg, uchar_vector& image, Alloc alloc = {}) :
x(x), sizeImg(sizeImg), image(alloc)
{ }
double x = 0;
int sizeImg = 0;
uchar_vector image;
};
using InData = BasicInData<>; // just heap allocated
namespace Shared {
using segment = bip::managed_shared_memory;
using segment_manager = segment::segment_manager;
template <typename T> using alloc = bip::allocator<T, segment_manager>;
template <typename T> using vector = bip::vector<T, alloc<T> >;
using InData = BasicInData<alloc<uchar> >; // shared memory version
vector<InData>& locate(segment& smt) {
auto* v = smt.find_or_construct<vector<InData> >("InDataVector")(smt.get_segment_manager());
assert(v);
return *v;
}
}
int main(int argc, char* argv[]) {
if(argc == 1){ //Parent process
// Remove shared memory on construction and destruction
// Create a new segment with given name and size
struct timeval tv;
gettimeofday(&tv, NULL);
struct shm_remove
{
shm_remove(){bip::shared_memory_object::remove("MySharedMemory");}
~shm_remove(){bip::shared_memory_object::remove("MySharedMemory");}
}remover;
Shared::segment smt(bip::create_only,"MySharedMemory", 65536); // 10 Kb for coliru
auto &data = Shared::locate(smt);
//Shared::alloc bip::alloc_inst (data);
cv::Mat_<cv::Vec3b> mat;
cv::VideoCapture vcap(0);
Shared::InData id(smt.get_segment_manager());
if (!vcap.isOpened())
return -1;
while (1) {
vcap >> mat;
int image_size = mat.total() * mat.elemSize();
id.sizeImg = image_size;
id.image.resize(image_size * sizeof(uchar));
memcpy(&id.image[0], mat.data, image_size * sizeof(uchar));
//Launch child process
gettimeofday(&tv, NULL);
double time = ((double)tv.tv_usec/1000000);
id.x = time;
data.push_back(id);
if(cv::waitKey(30) >= 0) break;
}
std::string s(argv[0]); s += " child";
if(0 != std::system(s.c_str()))
return 1;
// check child has destroyed the vector
if(smt.find<Shared::vector<InData>>("InDataVector").first)
return 1;
} else{
// Open the managed segment
bip::managed_shared_memory segment(bip::open_only, "MySharedMemory");
// Find the vector using c-string name
bip::vector<InData> *myvector = segment.find<bip::vector<InData>>("InDataVector").first;
// Use vector in reverse order
bip::vector<InData>::iterator it;
cv::Mat_<cv::Vec3b> im;
for(it = myvector->begin(); it !=myvector->end(); ++it){
im.resize(it->sizeImg);
memcpy(im.data, &it->image[0], it->sizeImg);
cv::imshow("window1", im);
}
segment.destroy<bip::vector<InData>>("InDataVector");
return 0;
}
}
答案 0 :(得分:0)
谢谢,@ greatwolf。 最后,我可以摆脱那个错误。 现在,我展示了#34; Linker设置&#34;在下面。
../../opencv-2.4.13/build/lib/libopencv_highgui.so
../../opencv-2.4.13/build/lib/libopencv_core.so
../../opencv-2.4.13/build/lib/libopencv_imgproc.so
pthread
boost_system
rt