/usr/include/pbseq/alignment/ipc/SharedMemoryAllocator.hpp is in libblasr-dev 0~20161219-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | #ifndef _BLASR_SHARED_MEMORY_ALLOCATOR_HPP_
#define _BLASR_SHARED_MEMORY_ALLOCATOR_HPP_
#include <iostream>
#include <string>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
template<typename T_Data>
int AllocateMappedShare(std::string &handle, int dataLength, T_Data *&dataPtr, int &shmId) {
std::cout << "opening shm" << std::endl;
shmId = shm_open(handle.c_str(), O_CREAT| O_RDWR, S_IRUSR | S_IWUSR);
if (ftruncate(shmId, sizeof(T_Data)*dataLength) == -1) {
std::cout <<" ftruncate error: " << errno << std::endl;
}
std::cout << "done truncating." << std::endl;
dataPtr = (T_Data*) mmap(NULL, sizeof(T_Data)*dataLength,
PROT_READ | PROT_WRITE, MAP_SHARED, shmId, 0);
if (dataPtr == MAP_FAILED) {
//
// Handle this better later on.
//
std::cout << "ERROR, MEMORY MAP FAILED." << std::endl;
exit(1);
}
std::cout << "done mapping." << std::endl;
return dataLength;
}
#endif // _BLASR_SHARED_MEMORY_ALLOCATOR_HPP_
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