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#include "probing_hash_utils.hh"
//Read table from disk, return memory map location
char * readTable(const char * filename, size_t size)
{
//Initial position of the file is the end of the file, thus we know the size
int fd;
char * map;
fd = open(filename, O_RDONLY);
if (fd == -1) {
perror("Error opening file for reading");
exit(EXIT_FAILURE);
}
map = (char *)mmap(0, size, PROT_READ, MAP_SHARED, fd, 0);
if (map == MAP_FAILED) {
close(fd);
perror("Error mmapping the file");
exit(EXIT_FAILURE);
}
return map;
}
void serialize_table(char *mem, size_t size, const char * filename)
{
std::ofstream os (filename, std::ios::binary);
os.write((const char*)&mem[0], size);
os.close();
}
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