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https://github.com/gnss-sdr/gnss-sdr
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Replace the use of dirent.h by C++ standard libraries
This commit is contained in:
Carles Fernandez
parent
015d111c2f
commit
77d58e1630
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@ -116,6 +116,18 @@ if(USE_BOOST_BIND_PLACEHOLDERS)
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)
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endif()
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if(ENABLE_FPGA)
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if(FILESYSTEM_FOUND)
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target_compile_definitions(core_libs PRIVATE -DHAS_STD_FILESYSTEM=1)
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if(find_experimental)
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target_compile_definitions(core_libs PRIVATE -DHAS_STD_FILESYSTEM_EXPERIMENTAL=1)
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endif()
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target_link_libraries(core_libs PRIVATE std::filesystem)
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else()
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target_link_libraries(core_libs PRIVATE Boost::filesystem Boost::system)
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endif()
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endif()
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if(ENABLE_CLANG_TIDY)
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if(CLANG_TIDY_EXE)
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set_target_properties(core_libs
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@ -19,10 +19,27 @@
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*/
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#include "uio_fpga.h"
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#include <dirent.h> // scandir()
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#include <fstream> // ifstream
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#include <iostream> // cout
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#include <sstream> // std::stringstream
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#include <algorithm> // sort
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#include <cstdint> // int8_t
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#include <fstream> // ifstream
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#include <iostream> // cout
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#include <locale> // isdigit
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#include <sstream> // std::stringstream
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#include <vector>
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#if HAS_STD_FILESYSTEM
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#if HAS_STD_FILESYSTEM_EXPERIMENTAL
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#include <experimental/filesystem>
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namespace fs = std::experimental::filesystem;
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#else
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#include <filesystem>
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namespace fs = std::filesystem;
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#endif
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#else
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/path.hpp>
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namespace fs = boost::filesystem;
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#endif
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int32_t get_uio_num(std::string uio_name)
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{
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@ -40,6 +57,7 @@ int32_t get_uio_num(std::string uio_name)
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return atoi(uio_num.c_str());
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}
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void get_uio_name(uint32_t uio_num, std::string &uio_name)
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{
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std::stringstream filename;
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@ -64,21 +82,101 @@ void get_uio_name(uint32_t uio_num, std::string &uio_name)
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}
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}
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int my_strverscmp(const char *s1, const char *s2)
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{
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// from https://code.woboq.org/userspace/glibc/string/strverscmp.c.html
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const uint8_t S_N = 0x0;
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const uint8_t S_I = 0x3;
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const uint8_t S_F = 0x6;
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const uint8_t S_Z = 0x9;
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const int8_t CMP = 2;
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const int8_t LEN = 3;
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const unsigned char *p1 = (const unsigned char *)s1;
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const unsigned char *p2 = (const unsigned char *)s2;
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/* Symbol(s) 0 [1-9] others
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Transition (10) 0 (01) d (00) x */
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static const uint8_t next_state[] =
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{
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/* state x d 0 */
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/* S_N */ S_N, S_I, S_Z,
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/* S_I */ S_N, S_I, S_I,
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/* S_F */ S_N, S_F, S_F,
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/* S_Z */ S_N, S_F, S_Z};
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static const int8_t result_type[] =
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{
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/* state x/x x/d x/0 d/x d/d d/0 0/x 0/d 0/0 */
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/* S_N */ CMP, CMP, CMP, CMP, LEN, CMP, CMP, CMP, CMP,
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/* S_I */ CMP, -1, -1, +1, LEN, LEN, +1, LEN, LEN,
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/* S_F */ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
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/* S_Z */ CMP, +1, +1, -1, CMP, CMP, -1, CMP, CMP};
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if (p1 == p2)
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{
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return 0;
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}
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unsigned char c1 = *p1++;
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unsigned char c2 = *p2++;
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/* Hint: '0' is a digit too. */
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int state = S_N + ((c1 == '0') + (isdigit(c1) != 0));
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int diff;
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while ((diff = c1 - c2) == 0)
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{
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if (c1 == '\0')
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{
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return diff;
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}
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state = next_state[state];
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c1 = *p1++;
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c2 = *p2++;
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state += (c1 == '0') + (isdigit(c1) != 0);
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}
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state = result_type[state * 3 + (((c2 == '0') + (isdigit(c2) != 0)))];
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switch (state)
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{
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case CMP:
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return diff;
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case LEN:
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while (isdigit(*p1++))
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{
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if (!isdigit(*p2++))
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{
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return 1;
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}
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}
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return isdigit(*p2) ? -1 : diff;
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default:
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return state;
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}
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}
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bool sort_directories(fs::directory_entry a, fs::directory_entry b)
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{
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int cmp = my_strverscmp(a.path().string().c_str(), b.path().string().c_str());
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return (cmp < 0);
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}
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int32_t find_uio_num(const std::string &device_name, uint32_t device_num)
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{
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struct dirent **files;
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int32_t uio_num;
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// get the number of directory entries in the uio driver description system directories
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uint32_t num_dir_entries = scandir(uio_dir.c_str(), &files, 0, versionsort);
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uint32_t device_count = 0, uio_count = 0;
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uint32_t uio_count = 0;
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// search for the requested device driver
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while (device_count < num_dir_entries)
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fs::path path(uio_dir);
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std::vector<fs::directory_entry> dirs;
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for (auto &p : fs::directory_iterator(path))
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{
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dirs.push_back(p);
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}
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std::sort(dirs.begin(), dirs.end(), sort_directories);
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for (auto &p : dirs)
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{
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// get the uio number corresponding to directory entry n
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uio_num = get_uio_num(files[device_count]->d_name);
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uio_num = get_uio_num(p.path().string());
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if (uio_num >= 0) // valid uio number
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{
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std::string nametemp;
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@ -95,11 +193,11 @@ int32_t find_uio_num(const std::string &device_name, uint32_t device_num)
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}
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}
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}
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device_count++;
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}
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return -1; // uio number not found
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}
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int32_t find_uio_dev_file_name(std::string &device_file_name, const std::string &device_name, uint32_t device_num)
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{
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int32_t uio_num = find_uio_num(device_name, device_num);
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