boost library

juricheguevara · 04-13-2006, 05:25 AM

hi..
I've installed Boost library from an rpm (Mandriva.2006) and now I want to use Boost.Thread..
I've tried to compile an example file but I've received many errors from, I think, the linker. How can I link boost shared library? They are in /usr/include/boost..
thanks

scuzzman · 04-13-2006, 05:45 AM

What are the errors? Post your compiler/linker output, and possibly your program's source code (or just the section with which you're having trouble) please.

juricheguevara · 04-13-2006, 12:32 PM

source code:

Code:

#include <iostream>
#include <vector>
#include <boost/utility.hpp>
#include <boost/thread/condition.hpp>
#include <boost/thread/thread.hpp>

class bounded_buffer : private boost::noncopyable
{
public:
    typedef boost::mutex::scoped_lock lock;

    bounded_buffer(int n) : begin(0), end(0), buffered(0), circular_buf(n) { }

    void send (int m) {
        lock lk(monitor);
        while (buffered == circular_buf.size())
            buffer_not_full.wait(lk);
        circular_buf[end] = m;
        end = (end+1) % circular_buf.size();
        ++buffered;
        buffer_not_empty.notify_one();
    }
    int receive() {
      lock lk(monitor);
        while (buffered == 0)
            buffer_not_empty.wait(lk);
        int i = circular_buf[begin];
        begin = (begin+1) % circular_buf.size();
        --buffered;
        buffer_not_full.notify_one();
        return i;
    }

private:
    int begin, end, buffered;
    std::vector<int> circular_buf;
    boost::condition buffer_not_full, buffer_not_empty;
    boost::mutex monitor;
};

bounded_buffer buf(2);

void sender() {
    int n = 0;
    while (n < 100) {
        buf.send(n);
        std::cout << "sent: " << n << std::endl;
        ++n;
    }
    buf.send(-1);
}

void receiver() {
    int n;
    do {
        n = buf.receive();
        std::cout << "received: " << n << std::endl;
    } while (n != -1); // -1 indicates end of buffer
}

int main(int, char*[])
{
    boost::thread thrd1(&sender);
    boost::thread thrd2(&receiver);
    thrd1.join();
    thrd2.join();
    return 0;
}

the command is: g++ condition.cpp -o condition

Code:

/home/juri/tmp/ccsbveqQ.o: In function `main':
condition.cpp:(.text+0x3f): undefined reference to `boost::thread::thread(boost::function0<void, std::allocator<boost::function_base> > const&)'
condition.cpp:(.text+0x9c): undefined reference to `boost::thread::thread(boost::function0<void, std::allocator<boost::function_base> > const&)'
condition.cpp:(.text+0xd6): undefined reference to `boost::thread::join()'
condition.cpp:(.text+0xe5): undefined reference to `boost::thread::join()'
condition.cpp:(.text+0xfb): undefined reference to `boost::thread::~thread()'
condition.cpp:(.text+0x112): undefined reference to `boost::thread::~thread()'
condition.cpp:(.text+0x126): undefined reference to `boost::thread::~thread()'
condition.cpp:(.text+0x143): undefined reference to `boost::thread::~thread()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::condition::condition()':
condition.cpp:(.gnu.linkonce.t._ZN5boost9conditionC1Ev[boost::condition::condition()]+0x21): undefined reference to `boost::detail::condition_impl::condition_impl()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::condition::~condition()':
condition.cpp:(.gnu.linkonce.t._ZN5boost9conditionD1Ev[boost::condition::~condition()]+0x12): undefined reference to `boost::detail::condition_impl::~condition_impl()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::condition::notify_one()':
condition.cpp:(.gnu.linkonce.t._ZN5boost9condition10notify_oneEv[boost::condition::notify_one()]+0x11): undefined reference to `boost::detail::condition_impl::notify_one()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::lock_ops<boost::mutex>::lock(boost::mutex&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread8lock_opsINS_5mutexEE4lockERS3_[boost::detail::thread::lock_ops<boost::mutex>::lock(boost::mutex&)]+0xd): undefined reference to `boost::mutex::do_lock()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::scoped_lock<boost::mutex>::lock()':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE4lockEv[boost::detail::thread::scoped_lock<boost::mutex>::lock()]+0x29): undefined reference to `boost::lock_error::lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE4lockEv[boost::detail::thread::scoped_lock<boost::mutex>::lock()]+0x34): undefined reference to `boost::lock_error::~lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE4lockEv[boost::detail::thread::scoped_lock<boost::mutex>::lock()]+0x39): undefined reference to `typeinfo for boost::lock_error'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::lock_ops<boost::mutex>::unlock(boost::mutex&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread8lock_opsINS_5mutexEE6unlockERS3_[boost::detail::thread::lock_ops<boost::mutex>::unlock(boost::mutex&)]+0xd): undefined reference to `boost::mutex::do_unlock()'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::scoped_lock<boost::mutex>::unlock()':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE6unlockEv[boost::detail::thread::scoped_lock<boost::mutex>::unlock()]+0x2c): undefined reference to `boost::lock_error::lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE6unlockEv[boost::detail::thread::scoped_lock<boost::mutex>::unlock()]+0x37): undefined reference to `boost::lock_error::~lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread11scoped_lockINS_5mutexEE6unlockEv[boost::detail::thread::scoped_lock<boost::mutex>::unlock()]+0x3c): undefined reference to `typeinfo for boost::lock_error'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::lock_ops<boost::mutex>::unlock(boost::mutex&, boost::mutex::cv_state&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread8lock_opsINS_5mutexEE6unlockERS3_RNS3_8cv_stateE[boost::detail::thread::lock_ops<boost::mutex>::unlock(boost::mutex&, boost::mutex::cv_state&)]+0x10): undefined reference to `boost::mutex::do_unlock(boost::mutex::cv_state&)'
/home/juri/tmp/ccsbveqQ.o: In function `boost::detail::thread::lock_ops<boost::mutex>::lock(boost::mutex&, boost::mutex::cv_state&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost6detail6thread8lock_opsINS_5mutexEE4lockERS3_RNS3_8cv_stateE[boost::detail::thread::lock_ops<boost::mutex>::lock(boost::mutex&, boost::mutex::cv_state&)]+0x10): undefined reference to `boost::mutex::do_lock(boost::mutex::cv_state&)'
/home/juri/tmp/ccsbveqQ.o: In function `void boost::condition::do_wait<boost::mutex>(boost::mutex&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost9condition7do_waitINS_5mutexEEEvRT_[void boost::condition::do_wait<boost::mutex>(boost::mutex&)]+0x27): undefined reference to `boost::detail::condition_impl::do_wait(pthread_mutex_t*)'
/home/juri/tmp/ccsbveqQ.o: In function `void boost::condition::wait<boost::detail::thread::scoped_lock<boost::mutex> >(boost::detail::thread::scoped_lock<boost::mutex>&)':
condition.cpp:(.gnu.linkonce.t._ZN5boost9condition4waitINS_6detail6thread11scoped_lockINS_5mutexEEEEEvRT_[void boost::condition::wait<boost::detail::thread::scoped_lock<boost::mutex> >(boost::detail::thread::scoped_lock<boost::mutex>&)]+0x36): undefined reference to `boost::lock_error::lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost9condition4waitINS_6detail6thread11scoped_lockINS_5mutexEEEEEvRT_[void boost::condition::wait<boost::detail::thread::scoped_lock<boost::mutex> >(boost::detail::thread::scoped_lock<boost::mutex>&)]+0x41): undefined reference to `boost::lock_error::~lock_error()'
condition.cpp:(.gnu.linkonce.t._ZN5boost9condition4waitINS_6detail6thread11scoped_lockINS_5mutexEEEEEvRT_[void boost::condition::wait<boost::detail::thread::scoped_lock<boost::mutex> >(boost::detail::thread::scoped_lock<boost::mutex>&)]+0x46): undefined reference to `typeinfo for boost::lock_error'
/home/juri/tmp/ccsbveqQ.o: In function `bounded_buffer::bounded_buffer(int)':
condition.cpp:(.gnu.linkonce.t._ZN14bounded_bufferC1Ei[bounded_buffer::bounded_buffer(int)]+0x78): undefined reference to `boost::mutex::mutex()'
/home/juri/tmp/ccsbveqQ.o: In function `bounded_buffer::~bounded_buffer()':
condition.cpp:(.gnu.linkonce.t._ZN14bounded_bufferD1Ev[bounded_buffer::~bounded_buffer()]+0x12): undefined reference to `boost::mutex::~mutex()'
collect2: ld returned 1 exit status

thanks

turkman · 06-09-2006, 03:50 AM

I also have such a problem. I am using cygwin enviroment.
The library path, as I think, is correct, since if you change the librayname like

g++ -lboost-whats-going-on y.cpp -o y.exe
then the following reported
..../ld cannot find -lboost-whats-going-on
after I corrected it as
g++ -L/usr/lib -boost-program_options_gcc-mt-s-1_33_1 y.cpp -o y.exe

then the name mangling problem found because collect2 cannot find all the boost library
I use
ar -t /usr/lib/libboost-program_options_gcc-mt-s-1_33_1.a
And it shows meaningful results, whereas g++ seemed to do name mangling on my y.cpp
I guess C Linkage has to be applied in y.cpp, but I dont know how...

Best Regards,

traene · 07-01-2006, 04:54 AM

Code:

SOURCE := threadtest.cpp
PROG := threadsample

INCLUDES := -I/usr/local/include/boost-1_33_1
LIBPATH := -L/usr/local/lib
LIBS := -lboost_thread-gcc-mt-d

all: $(PROG)

$(PROG): threadtest.o
	cc -o $(PROG) threadtest.o $(LIBPATH) $(LIBS)

threadtest.o: $(SOURCE)
	cc -c $(SOURCE) $(INCLUDES)

Can you try the following makefile? For my version of boost it worked.
After building the exe, make sure to set the LD_LIBRARY_PATH.

turkman · 07-04-2006, 10:53 AM

Hi,

I still get the error report shown in this mail series.

I just
(1) download cygwin, gcc, boost lib from cygwin
(2) copy the threadtest.cpp
(3) copy the makefile
(4) modify includes to /usr/include and libs to /usr/lib because cygwin put boost to those directories
(5) modify to -lboost_thread-gcc-mt-s because i cannot find libboost_thread-gcc-mt-d.a
(6) set LD_LIBRARY_PATH to /usr/lib and verify it through echoing in the shell

Then, should i get a copy of source code of bin utility to debug "collect2" behavior???
Best Regards,