Add sqlite and start work on comunication protocol

CMakeLists.txt

@@ -9,6 +9,20 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ggdb")
 
 include(ExternalProject)
 
+ExternalProject_Add(
+  sqlite
+  PREFIX ""
+  URL https://www.sqlite.org/2025/sqlite-amalgamation-3480000.zip
+  URL_HASH SHA256=d9a15a42db7c78f88fe3d3c5945acce2f4bfe9e4da9f685cd19f6ea1d40aa884
+  DOWNLOAD_DIR ${CMAKE_BINARY_DIR}/downloads
+  SOURCE_DIR ${CMAKE_BINARY_DIR}/sqlite
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND 
+                ${CMAKE_C_COMPILER} -c ${CMAKE_BINARY_DIR}/sqlite/sqlite3.c -o ${CMAKE_BINARY_DIR}/sqlite-prefix/sqlite3.o -DSQLITE_DQS=0 -DSQLITE_DEFAULT_MEMSTATUS=0 -DSQLITE_DEFAULT_WAL_SYNCHRONOUS=1 -DSQLITE_LIKE_DOESNT_MATCH_BLOBS -DSQLITE_MAX_EXPR_DEPTH=0 -DSQLITE_OMIT_DECLTYPE -DSQLITE_OMIT_DEPRECATED -DSQLITE_OMIT_PROGRESS_CALLBACK -DSQLITE_OMIT_SHARED_CACHE -DSQLITE_USE_ALLOCA -DSQLITE_OMIT_AUTOINIT -DSQLITE_STRICT_SUBTYPE=1 -DSQLITE_THREADSAFE=2 &&
+                ${CMAKE_AR} rcs ${CMAKE_BINARY_DIR}/sqlite-prefix/libsqlite3.a ${CMAKE_BINARY_DIR}/sqlite-prefix/sqlite3.o
+  INSTALL_COMMAND ""
+)
+
 ExternalProject_Add(
   raylib
   PREFIX ""
@@ -21,21 +35,39 @@ ExternalProject_Add(
   INSTALL_COMMAND ""
 )
 
-
 add_executable(app
-  src/main.cpp
-  src/App.cpp
-  src/DnaStore.cpp
-  src/sys.cpp
-  src/canvas/BackGround.cpp
-  src/canvas/BackGroundColors.cpp
-  src/canvas/Canvas.cpp
-  src/canvas/Circle.cpp
-  src/canvas/Tree.cpp
-  src/values/Dna.cpp
-  src/values/DnaManager.cpp
-  src/values/mrand.cpp
+  app/src/main.cpp
+  app/src/App.cpp
+  app/src/DnaStore.cpp
+  app/src/sys.cpp
+  shared/src/canvas/BackGround.cpp
+  shared/src/canvas/BackGroundColors.cpp
+  shared/src/canvas/Canvas.cpp
+  shared/src/canvas/Circle.cpp
+  shared/src/canvas/Tree.cpp
+  shared/src/values/Dna.cpp
+  shared/src/values/DnaManager.cpp
+  shared/src/values/mrand.cpp
 )
 # Add include directories
-target_include_directories(app PRIVATE inc ${CMAKE_BINARY_DIR}/raylib/include)
-target_link_libraries(app ${CMAKE_BINARY_DIR}/raylib/lib/libraylib.a)
+target_include_directories(app PRIVATE app/inc shared/inc ${CMAKE_BINARY_DIR}/raylib/include)
+target_link_libraries(app ${CMAKE_BINARY_DIR}/raylib/lib/libraylib.a)
+
+add_executable(server
+  server/src/server.cpp
+  server/src/sql.cpp
+
+  shared/src/TcpSocket.cpp
+  shared/src/values/Dna.cpp
+  shared/src/values/DnaManager.cpp
+  shared/src/values/mrand.cpp
+)
+# Add include directories
+target_include_directories(server PRIVATE server/inc shared/inc ${CMAKE_BINARY_DIR}/sqlite/)
+target_link_libraries(server PRIVATE pthread dl m ${CMAKE_BINARY_DIR}/sqlite-prefix/libsqlite3.a)
+
+add_executable(client
+  server/src/client.cpp
+  shared/src/TcpSocket.cpp
+)
+target_include_directories(client PRIVATE server/inc shared/inc)

app/src/DnaStore.cpp

@@ -14,12 +14,12 @@ void DnaStore::load(DnaManagerData *data)
 {
   if (sys::fileExists(ID_FILE_NAME))
   {
-    sys::loadDataFromFile(ID_FILE_NAME, &data->id, sizeof(uint128));
+    sys::loadDataFromFile(ID_FILE_NAME, &data->id, sizeof(uint64_t));
   }
   else
   {
-    data->id = mrand::getState(time(nullptr));
-    sys::saveDataToFile(ID_FILE_NAME, &data->id, sizeof(uint128));
+    data->id = time(nullptr);
+    sys::saveDataToFile(ID_FILE_NAME, &data->id, sizeof(uint64_t));
   }
 
   if (sys::fileExists(DATA_FILE_NAME))
@@ -57,7 +57,7 @@ void DnaStore::load(DnaManagerData *data)
   }
   else
   {
-    data->randSeed = data->id;
+    data->randSeed = mrand::getState(data->id);
     data->queued = 0;
     data->showed = 0;
     data->generation = 0;
@@ -119,7 +119,7 @@ void DnaStore::saveGen(DnaManagerData *data)
   gen.resize(NUM_PER_GEN);
   for (std::size_t i = 0; i < NUM_PER_GEN; i++)
   {
-    gen[i].hash = ComputeCRC32((unsigned char *)&data->vector[i], sizeof(Dna));
+    gen[i].hash = mrand::computeCRC32((unsigned char *)&data->vector[i], sizeof(Dna));
     gen[i].liked = Liked::tbd;
     gen[i].index = i;
   }

server/inc/sql.hpp

@@ -0,0 +1,8 @@
+
+
+namespace sql
+{
+  void init();
+  void shutdown();
+
+}

server/src/client.cpp

@@ -0,0 +1,47 @@
+#include "TcpSocket.hpp"
+#include "NetConst.hpp"
+#include "values/DnaManager.hpp"
+#include <iostream>
+#include <fstream>
+#include <vector>
+
+int main()
+{
+  int sock = TcpSocket::connectt("localhost", 8888);
+
+  if (sock < 0)
+  {
+    printf("Error %d", sock);
+    return 0;
+  }
+
+  std::ifstream idf("ID.bin", std::ios_base::binary);
+
+  uint64_t ID = 0;
+
+  idf.read((char *)&ID, sizeof(ID));
+  printf("id: %ld\n", ID);
+
+  TcpSocket::sendt(sock, &StartHeader, sizeof(StartHeader));
+  TcpSocket::sendt(sock, &ID, sizeof(ID));
+
+  size_t needed_gen = 0;
+
+  TcpSocket::recvt(sock, &needed_gen, sizeof(needed_gen));
+
+  char filename[20];
+  int ret = sprintf(filename, "gen%04ld.bin", needed_gen);
+
+  idf.close();
+  idf.open(filename);
+
+  std::vector<NetUnit> net;
+  net.resize(NUM_PER_GEN);
+
+  idf.read((char *)net.data(), NUM_PER_GEN * sizeof(NetUnit));
+  TcpSocket::sendt(sock, net.data(), NUM_PER_GEN * sizeof(NetUnit));
+
+  TcpSocket::closet(sock);
+
+  return 0;
+}

server/src/server.cpp

@@ -0,0 +1,110 @@
+#include "TcpSocket.hpp"
+#include "NetConst.hpp"
+#include "sql.hpp"
+#include "values/DnaManager.hpp"
+#include <iostream>
+
+#include <map>
+
+// use pthread rw_lock to lock db so you can safy clone .db file
+
+typedef std::vector<NetUnit> NetList;
+typedef std::vector<NetList> UserList;
+
+std::map<uint64_t, UserList> data;
+
+NetList generate_first(uint64_t id)
+{
+  std::vector<NetUnit> ret;
+  ret.resize(NUM_PER_GEN);
+
+  uint128 randSeed = mrand::getState(id);
+
+  for (std::size_t i = 0; i < NUM_PER_GEN; i++)
+  {
+    Dna dna;
+    DNA::newDna(&dna, &randSeed);
+
+    ret[i].hash = mrand::computeCRC32(&dna, sizeof(Dna));
+    ret[i].liked = Liked::tbd;
+    ret[i].index = i;
+  }
+
+  return ret;
+}
+
+// When a new client connected:
+void call(int sock, sockaddr_in newSocketInfo)
+{
+  std::cout << "new User" << std::endl;
+
+  uint64_t conf, id;
+
+  TcpSocket::recvt(sock, &conf, sizeof(conf));
+  TcpSocket::recvt(sock, &id, sizeof(id));
+
+  if (conf != StartHeader)
+  {
+    TcpSocket::closet(sock);
+    return;
+  }
+
+  if (id == 0)
+  {
+    printf("ID ERROR\n");
+    return;
+  }
+
+  auto found = data.find(id);
+  if (found == data.end())
+  {
+    printf("notfound\n");
+    UserList list;
+    NetList netList = generate_first(id);
+    list.push_back(netList);
+    data.insert(std::pair<uint64_t, UserList>(id, list));
+  }
+  found = data.find(id);
+
+  // repete point
+  size_t gen = found->second.size() - 1;
+
+  TcpSocket::sendt(sock, &gen, sizeof(size_t));
+
+  NetList list;
+  list.resize(NUM_PER_GEN);
+
+  TcpSocket::recvt(sock, list.data(), NUM_PER_GEN * sizeof(NetUnit));
+
+  for (size_t i = 0; i < NUM_PER_GEN; i++)
+  {
+    if (found->second[0][i].hash != list[i].hash)
+    {
+      found->second[0][i].liked != list[i].liked;
+      printf("Not same\n");
+    }
+  }
+
+  // generate the next generation hash form the new info and repete form repete point
+
+  printf("same\n");
+
+  printf("id: %ld\n", id);
+
+  std::cout << "del USER" << std::endl;
+  TcpSocket::closet(sock);
+}
+
+int main()
+{
+  sql::init();
+  // Bind the server to a port.
+  int err = TcpSocket::listent("0.0.0.0", 8888, call);
+  if (err < 0)
+  {
+    printf("ERROR %d", err);
+    return 0;
+  }
+
+  return 0;
+}

server/src/sql.cpp

@@ -0,0 +1,77 @@
+#include "sql.hpp"
+
+#include <cstdio>
+#include <cstdlib>
+
+#include <sqlite3.h>
+
+const char create_table[] = "CREATE TABLE IF NOT EXISTS prim_table ( ID INTEGER PRIMARY KEY, GEN INTEGER, HASH INTEGER, POS INTEGER, LIKED INTEGER);";
+
+const char create_index[] = "CREATE INDEX IF NOT EXISTS idx_id ON prim_table (ID);";
+
+constexpr char DB_NAME[] = "data.db";
+
+static int callback(void *NotUsed, int argc, char **argv, char **azColName)
+{
+  int i;
+  for (i = 0; i < argc; i++)
+  {
+    printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
+  }
+  printf("\n");
+  return 0;
+}
+
+void sql::init()
+{
+  sqlite3_initialize();
+  sqlite3 *db;
+  char *zErrMsg = 0;
+  int rc;
+
+  /* Open database */
+  rc = sqlite3_open(DB_NAME, &db);
+
+  if (rc)
+  {
+    fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
+    return;
+  }
+  else
+  {
+    fprintf(stdout, "Opened database successfully\n");
+  }
+
+  /* Execute SQL statement */
+  rc = sqlite3_exec(db, create_table, callback, 0, &zErrMsg);
+
+  if (rc != SQLITE_OK)
+  {
+    fprintf(stderr, "SQL error: %s\n", zErrMsg);
+    sqlite3_free(zErrMsg);
+  }
+  else
+  {
+    fprintf(stdout, "Table created successfully\n");
+  }
+
+  /* Execute SQL statement */
+  rc = sqlite3_exec(db, create_index, callback, 0, &zErrMsg);
+
+  if (rc != SQLITE_OK)
+  {
+    fprintf(stderr, "SQL error: %s\n", zErrMsg);
+    sqlite3_free(zErrMsg);
+  }
+  else
+  {
+    fprintf(stdout, "Index created successfully\n");
+  }
+
+  sqlite3_close(db);
+}
+
+void sql::shutdown()
+{
+  sqlite3_shutdown();
+}

shared/inc/NetConst.hpp

@@ -0,0 +1,3 @@
+#include <cinttypes>
+
+constexpr uint64_t StartHeader = 1737720524UL;

shared/inc/TcpSocket.hpp

@@ -0,0 +1,25 @@
+#include <string>
+#include <netinet/in.h>
+
+#define AS_DEFAULT_BUFFER_SIZE 0x1000 /*4096 bytes*/
+
+namespace TcpSocket
+{
+
+    void setTimeout(int seconds, int sock);
+
+    ssize_t sendt(int sock, const void *bytes, size_t byteslength);
+
+    ssize_t recvt(int sock, void *bytes, size_t byteslength);
+
+    void closet(int sock);
+
+    std::string remoteAddress(sockaddr_in &address);
+
+    int remotePort(sockaddr_in &address);
+    int connectt(const char *host, uint16_t port);
+
+    typedef void(OnNewConnectionCallBack)(int sock, sockaddr_in newSocketInfo);
+    int listent(const char *host, uint16_t port, OnNewConnectionCallBack callback);
+
+} // namespace TcpSocket

shared/inc/values/DnaManager.hpp

@@ -32,7 +32,7 @@ struct DnaManagerData
 {
   int generation;
   uint128 randSeed;
-  uint128 id;
+  uint64_t id;
   int queued;
   int showed;
   std::vector<Dna> vector;

shared/inc/values/mrand.hpp

@@ -13,4 +13,5 @@ namespace mrand
   uint128 getState(unsigned long long seed);
   float getFloat(uint128 *state);
   int getValue(int min, int max, uint128 *state);
+  unsigned int computeCRC32(void *data, int dataSize);
 }

shared/src/TcpSocket.cpp

@@ -0,0 +1,168 @@
+#include "TcpSocket.hpp"
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <netdb.h>
+
+#include <string>
+#include <functional>
+#include <cerrno>
+#include <cstring>
+#include <thread>
+
+namespace TcpSocket
+{
+
+  void setTimeout(int seconds, int sock)
+  {
+    struct timeval tv;
+    tv.tv_sec = seconds;
+    tv.tv_usec = 0;
+
+    setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));
+    setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));
+  }
+
+  ssize_t sendt(int sock, const void *bytes, size_t byteslength) { return send(sock, bytes, byteslength, 0); }
+
+  ssize_t recvt(int sock, void *bytes, size_t byteslength) { return recv(sock, bytes, byteslength, 0); }
+
+  void closet(int sock)
+  {
+    shutdown(sock, SHUT_RDWR);
+    close(sock);
+  }
+
+  std::string remoteAddress(sockaddr_in &address)
+  {
+    char ip[INET_ADDRSTRLEN];
+    inet_ntop(AF_INET, &(address.sin_addr), ip, INET_ADDRSTRLEN);
+
+    return std::string(ip);
+  }
+
+  int remotePort(sockaddr_in &address) { return ntohs(address.sin_port); }
+
+  int connectt(const char *host, uint16_t port)
+  {
+    struct addrinfo hints, *res, *it;
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_INET;
+    hints.ai_socktype = SOCK_STREAM;
+
+    // Get address info from DNS
+    int status = getaddrinfo(host, NULL, &hints, &res);
+    if (status != 0)
+    {
+      // onError(errno, "Invalid address." + std::string(gai_strerror(status)));
+      return -1;
+    }
+
+    sockaddr_in address;
+    for (it = res; it != NULL; it = it->ai_next)
+    {
+      if (it->ai_family == AF_INET)
+      { // IPv4
+        memcpy((void *)(&address), (void *)it->ai_addr, sizeof(sockaddr_in));
+        break; // for now, just get the first ip (ipv4).
+      }
+    }
+
+    freeaddrinfo(res);
+
+    int sock = socket(AF_INET, SOCK_STREAM, 0);
+
+    if (sock == -1)
+    {
+      // onError(errno, "Socket creating error.");
+      return -2;
+    }
+
+    address.sin_family = AF_INET;
+    address.sin_port = htons(port);
+
+    // setTimeout(5, sock);
+
+    // Try to connect.
+    status = connect(sock, (const sockaddr *)&address, sizeof(sockaddr_in));
+    if (status == -1)
+    {
+      // onError(errno, "Connection failed to the host.");
+      close(sock);
+      return -3;
+    }
+    return sock;
+  }
+
+  int listent(const char *host, uint16_t port, OnNewConnectionCallBack callback)
+  {
+    sockaddr_in address;
+
+    int sock = socket(AF_INET, SOCK_STREAM, 0);
+
+    if (sock == -1)
+    {
+      // onError(errno, "Socket creating error.");
+      return -1;
+    }
+
+    int opt = 1;
+    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
+    setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(int));
+
+    int status = inet_pton(AF_INET, host, &address.sin_addr);
+    switch (status)
+    {
+    case -1:
+      close(sock);
+      // onError(errno, "Invalid address. Address type not supported.");
+      return -2;
+    case 0:
+      close(sock);
+      // onError(errno, "AF_INET is not supported. Please send message to developer.");
+      return -3;
+    default:
+      break;
+    }
+
+    address.sin_family = AF_INET;
+    address.sin_port = htons(port);
+
+    if (bind(sock, (const sockaddr *)&address, sizeof(address)) == -1)
+    {
+      // onError(errno, "Cannot bind the socket.");
+      close(sock);
+      return -4;
+    }
+    if (listen(sock, 20) == -1)
+    {
+      // onError(errno, "Error: Server can't listen the socket.");
+      close(sock);
+      return -5;
+    }
+
+    sockaddr_in newSocketInfo;
+    socklen_t newSocketInfoLength = sizeof(newSocketInfo);
+
+    int newSocketFileDescriptor = -1;
+    while (true)
+    {
+      newSocketFileDescriptor = accept(sock, (sockaddr *)&newSocketInfo, &newSocketInfoLength);
+      if (newSocketFileDescriptor == -1)
+      {
+        if (errno == EBADF || errno == EINVAL)
+          return -6;
+
+        return -7;
+      }
+
+      std::thread t(callback, newSocketFileDescriptor, newSocketInfo);
+      t.detach();
+    }
+
+    return 0;
+  }
+
+}

shared/src/values/mrand.cpp

@@ -0,0 +1,108 @@
+#include <cinttypes>
+#include <algorithm>
+#include "values/mrand.hpp"
+
+static inline uint32_t my_rotate_left(const uint32_t x, int k)
+{
+  return (x << k) | (x >> (32 - k));
+}
+
+uint32_t my_rprand_xoshiro(uint32_t state[4])
+{
+  const uint32_t result = my_rotate_left(state[1] * 5, 7) * 9;
+  const uint32_t t = state[1] << 9;
+
+  state[2] ^= state[0];
+  state[3] ^= state[1];
+  state[1] ^= state[2];
+  state[0] ^= state[3];
+
+  state[2] ^= t;
+
+  state[3] = my_rotate_left(state[3], 11);
+
+  return result;
+}
+
+uint64_t rprand_splitmix64(uint64_t &rprand_seed)
+{
+  uint64_t z = (rprand_seed += 0x9e3779b97f4a7c15);
+  z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9;
+  z = (z ^ (z >> 27)) * 0x94d049bb133111eb;
+  return z ^ (z >> 31);
+}
+
+namespace mrand
+{
+  uint128 getState(unsigned long long seed)
+  {
+    uint64_t rprand_seed = (uint64_t)seed; // Set SplitMix64 seed for further use
+
+    uint128 rprand_state;
+
+    // To generate the Xoshiro128** state, we use SplitMix64 generator first
+    // We generate 4 pseudo-random 64bit numbers that we combine using their LSB|MSB
+    rprand_state.a = (uint32_t)(rprand_splitmix64(rprand_seed) & 0xffffffff);
+    rprand_state.b = (uint32_t)((rprand_splitmix64(rprand_seed) & 0xffffffff00000000) >> 32);
+    rprand_state.c = (uint32_t)(rprand_splitmix64(rprand_seed) & 0xffffffff);
+    rprand_state.d = (uint32_t)((rprand_splitmix64(rprand_seed) & 0xffffffff00000000) >> 32);
+    return rprand_state;
+  }
+
+  int getValue(int min, int max, uint128 *state)
+  {
+    int value = my_rprand_xoshiro((uint32_t *)state) % (std::abs(max - min) + 1) + min;
+
+    return value;
+  }
+
+  float getFloat(uint128 *state)
+  {
+    return my_rprand_xoshiro((uint32_t *)state) / 4294967295.0f;
+  }
+
+  unsigned int computeCRC32(void *data, int dataSize)
+  {
+    static unsigned int crcTable[256] = {
+        0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+        0x0eDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+        0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+        0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+        0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+        0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+        0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+        0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+        0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+        0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+        0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+        0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+        0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+        0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+        0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+        0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+        0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+        0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+        0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+        0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+        0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+        0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+        0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+        0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+        0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+        0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+        0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+        0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+        0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+        0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+        0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+        0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D};
+
+    unsigned int crc = ~0u;
+
+    unsigned char *datac = (unsigned char *)data;
+    for (int i = 0; i < dataSize; i++)
+      crc = (crc >> 8) ^ crcTable[datac[i] ^ (crc & 0xff)];
+
+    return ~crc;
+  }
+}

src/values/mrand.cpp

@@ -1,63 +0,0 @@
-#include <cinttypes>
-#include <algorithm>
-#include "values/mrand.hpp"
-
-static inline uint32_t my_rotate_left(const uint32_t x, int k)
-{
-  return (x << k) | (x >> (32 - k));
-}
-
-uint32_t my_rprand_xoshiro(uint32_t state[4])
-{
-  const uint32_t result = my_rotate_left(state[1] * 5, 7) * 9;
-  const uint32_t t = state[1] << 9;
-
-  state[2] ^= state[0];
-  state[3] ^= state[1];
-  state[1] ^= state[2];
-  state[0] ^= state[3];
-
-  state[2] ^= t;
-
-  state[3] = my_rotate_left(state[3], 11);
-
-  return result;
-}
-
-uint64_t rprand_splitmix64(uint64_t &rprand_seed)
-{
-  uint64_t z = (rprand_seed += 0x9e3779b97f4a7c15);
-  z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9;
-  z = (z ^ (z >> 27)) * 0x94d049bb133111eb;
-  return z ^ (z >> 31);
-}
-
-namespace mrand
-{
-  uint128 getState(unsigned long long seed)
-  {
-    uint64_t rprand_seed = (uint64_t)seed; // Set SplitMix64 seed for further use
-
-    uint128 rprand_state;
-
-    // To generate the Xoshiro128** state, we use SplitMix64 generator first
-    // We generate 4 pseudo-random 64bit numbers that we combine using their LSB|MSB
-    rprand_state.a = (uint32_t)(rprand_splitmix64(rprand_seed) & 0xffffffff);
-    rprand_state.b = (uint32_t)((rprand_splitmix64(rprand_seed) & 0xffffffff00000000) >> 32);
-    rprand_state.c = (uint32_t)(rprand_splitmix64(rprand_seed) & 0xffffffff);
-    rprand_state.d = (uint32_t)((rprand_splitmix64(rprand_seed) & 0xffffffff00000000) >> 32);
-    return rprand_state;
-  }
-
-  int getValue(int min, int max, uint128 *state)
-  {
-    int value = my_rprand_xoshiro((uint32_t *)state) % (std::abs(max - min) + 1) + min;
-
-    return value;
-  }
-
-  float getFloat(uint128 *state)
-  {
-    return my_rprand_xoshiro((uint32_t *)state) / 4294967295.0f;
-  }
-}