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 ""
@@ -41,11 +55,16 @@ 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)
-
+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

app/src/DnaStore.cpp

@@ -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

@@ -1,9 +1,9 @@
 #include "TcpSocket.hpp"
+#include "NetConst.hpp"
+#include "values/DnaManager.hpp"
 #include <iostream>
-
-using namespace std;
-
-char mes[] = "Hello Server!";
+#include <fstream>
+#include <vector>
 
 int main()
 {
@@ -15,24 +15,31 @@ int main()
     return 0;
   }
 
-  char tempBuffer[AS_DEFAULT_BUFFER_SIZE + 1];
-  ssize_t messageLength;
+  std::ifstream idf("ID.bin", std::ios_base::binary);
 
-  // You should do an input loop, so the program won't terminate immediately
-  string input;
-  getline(cin, input);
-  while (input != "exit")
-  {
-    TcpSocket::sendt(sock, input.data(), input.size());
-    messageLength = TcpSocket::recvt(sock, tempBuffer, AS_DEFAULT_BUFFER_SIZE);
-    if (messageLength <= 0)
-    {
-      break;
-    }
-    tempBuffer[messageLength] = 0;
-    printf("%s\n", tempBuffer);
-    getline(cin, input);
-  }
+  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);
 

server/src/server.cpp

@@ -1,28 +1,103 @@
 #include "TcpSocket.hpp"
+#include "NetConst.hpp"
+#include "sql.hpp"
+#include "values/DnaManager.hpp"
 #include <iostream>
 
-using namespace std;
+#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;
-  char tempBuffer[AS_DEFAULT_BUFFER_SIZE + 1];
-  ssize_t messageLength;
-  while ((messageLength = TcpSocket::recvt(sock, tempBuffer, AS_DEFAULT_BUFFER_SIZE)) > 0)
+
+  uint64_t conf, id;
+
+  TcpSocket::recvt(sock, &conf, sizeof(conf));
+  TcpSocket::recvt(sock, &id, sizeof(id));
+
+  if (conf != StartHeader)
   {
-    tempBuffer[messageLength] = '\0';
-    TcpSocket::sendt(sock, tempBuffer, messageLength);
+    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)

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/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/values/mrand.cpp

@@ -60,4 +60,49 @@ namespace mrand
   {
     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;
+  }
 }