fixed warning

merge changes from 'main'

.gitignore

@@ -6,6 +6,10 @@ obj/
 .old*/
 .vs/
 .vshistory/
+tmp/
+temp/
+*.tmp
+*.temp
 .editorconfig
 *.user
 *.vcxproj.filters

.vscode/launch.json

@@ -11,19 +11,7 @@
             "stopAtEntry": false,
             "externalConsole": false,
             "MIMode": "gdb",
-            "miDebuggerPath": "gdb",
+            "miDebuggerPath": "gdb"
-            "setupCommands": [
-                {
-                    "description": "Enable pretty-printing for gdb",
-                    "text": "-enable-pretty-printing",
-                    "ignoreFailures": true
-                },
-                {
-                    "description":  "Set Disassembly Flavor to Intel",
-                    "text": "-gdb-set disassembly-flavor intel",
-                    "ignoreFailures": true
-                }
-            ]
         },
         {
             "name": "(gdb-pipe) Debug",

Makefile

@@ -57,7 +57,7 @@ gprof:
 # compiles program and runs it with callgrind (part of valgrind)
 # uses gprof2dot python script to generate function call tree (pip install gprof2dot)
 # requires graphviz (https://www.graphviz.org/download/source/)
-# P.S. detailed rezults can be viewed in KCacheGrind
+# P.S. detailed results can be viewed in KCacheGrind
 callgrind:
 	@cbuild/call_task.sh callgrind 2>&1 | tee make_raw.log
 

default.config

@@ -1,6 +1,6 @@
 #!/bin/bash
 CBUILD_VERSION=7
-CONFIG_VERSION=7
+CONFIG_VERSION=8
 
 PROJECT="kerep"
 CMP_C="gcc"
@@ -37,10 +37,12 @@ case "$OS" in
     WINDOWS)
         EXEC_FILE="$PROJECT.exe"
         SHARED_LIB_FILE="$PROJECT.dll"
+        LINKER_LIBS="-lpthread -lws2_32"
         ;;
     LINUX)
         EXEC_FILE="$PROJECT"
         SHARED_LIB_FILE="$PROJECT.so"
+        LINKER_LIBS=""
         ;;
     *)
         error "operating system $OS has no configuration variants"
@@ -59,7 +61,7 @@ case "$TASK" in
         # -fdata-sections -ffunction-sections -Wl,--gc-sections  removes unused code
         C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-use -fprofile-prefix-path=$(realpath $OBJDIR)/objects -fdata-sections -ffunction-sections -Wl,--gc-sections"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=
         TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         POST_TASK_SCRIPT=
@@ -68,7 +70,7 @@ case "$TASK" in
     build_exec_dbg)
         C_ARGS="-O0 -g3"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=
         TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         POST_TASK_SCRIPT=
@@ -77,7 +79,7 @@ case "$TASK" in
     build_shared_lib)
         C_ARGS="-O2 -fpic -flto -shared"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE"
+        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE $LINKER_LIBS"
         PRE_TASK_SCRIPT=
         TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
         POST_TASK_SCRIPT=
@@ -86,7 +88,7 @@ case "$TASK" in
     build_shared_lib_dbg)
         C_ARGS="-O0 -g3 -fpic -shared"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE"
+        LINKER_ARGS="$CPP_ARGS -Wl,-soname,$SHARED_LIB_FILE $LINKER_LIBS"
         PRE_TASK_SCRIPT=
         TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
         POST_TASK_SCRIPT=
@@ -127,7 +129,7 @@ case "$TASK" in
         # -fprofile-prefix-path sets path where profiling info about objects will be saved
         C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-generate -fprofile-prefix-path=$(realpath $OBJDIR)/objects"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         TASK_SCRIPT=cbuild/default_tasks/profile.sh
         POST_TASK_SCRIPT=
@@ -140,7 +142,7 @@ case "$TASK" in
         # -pg adds code to executable, that generates file containing function call info (gmon.out)
         C_ARGS="-O2 -flto=auto -fuse-linker-plugin -pg"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         TASK_SCRIPT=cbuild/default_tasks/gprof.sh
         POST_TASK_SCRIPT=
@@ -148,13 +150,13 @@ case "$TASK" in
     # compiles program and runs it with callgrind (part of valgrind)
     # uses gprof2dot python script to generate function call tree (pip install gprof2dot)
     # requires graphviz (https://www.graphviz.org/download/source/)
-    # P.S. detailed rezults can be viewed in KCacheGrind
+    # P.S. detailed results can be viewed in KCacheGrind
     callgrind)
         OUTDIR="$OUTDIR/callgrind"
         # -pg adds code to executable, that generates file containing function call info (gmon.out)
         C_ARGS="-O2 -flto=auto -fuse-linker-plugin"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=tasks/pre_build.sh
         TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         POST_TASK_SCRIPT=cbuild/default_tasks/callgrind.sh
@@ -164,7 +166,7 @@ case "$TASK" in
         OUTDIR="$OUTDIR/sanitize"
         C_ARGS="-O0 -g3 -fsanitize=undefined,address"
         CPP_ARGS="$C_ARGS"
-        LINKER_ARGS="$CPP_ARGS"
+        LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
         PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
         TASK_SCRIPT=cbuild/default_tasks/exec.sh
         POST_TASK_SCRIPT=

src/Filesystem/file.c

@@ -64,64 +64,64 @@ Maybe file_close(FileHandle file){
 }
 
 #define ioWriteCheck() \
-    if(rezult==EOF) \
+    if(result==EOF) \
         safethrow(ERR_IO_EOF,;); \
-    if(rezult!=0) \
+    if(result!=0) \
         safethrow(ERR_IO,;);
 
 Maybe file_writeChar(FileHandle file, char byte){
-    i32 rezult=fputc(byte, file);
+    i32 result=fputc(byte, file);
     ioWriteCheck();
     return MaybeNull;
 }
 
 Maybe file_writeBuffer(FileHandle file, char* buffer, u64 length){
-    i32 rezult=0;
+    i32 result=0;
-    for(u64 i=0; i<length && !rezult; i++)
+    for(u64 i=0; i<length && !result; i++)
-        rezult=fputc(buffer[i], file);
+        result=fputc(buffer[i], file);
     ioWriteCheck();
     return MaybeNull;
 }
 
 Maybe file_writeCptr(FileHandle file, char* cptr){
-    i32 rezult=fputs(cptr, file);
+    i32 result=fputs(cptr, file);
     ioWriteCheck();
     return MaybeNull;
 }
 
 
 Maybe file_readChar(FileHandle file){
-    i32 rezult=fgetc(file);
+    i32 result=fgetc(file);
     if(feof(file)) safethrow(ERR_IO_EOF,;);
     if(ferror(file)) safethrow(ERR_IO,;);
-    return SUCCESS(UniUInt64(rezult));
+    return SUCCESS(UniUInt64(result));
 }
 
 Maybe file_readBuffer(FileHandle file, char* buffer, u64 length){
-    i32 rezult=0;
+    i32 result=0;
     u64 i=0;
-    for(; i<length && rezult!=EOF; i++){
+    for(; i<length && result!=EOF; i++){
-        rezult=fgetc(file);
+        result=fgetc(file);
-        buffer[i]=(char)rezult;
+        buffer[i]=(char)result;
     }
     if(ferror(file)) safethrow(ERR_IO,;);
     return SUCCESS(UniUInt64(i));
 }
 
 Maybe file_readAll(FileHandle file, char** allBytes){
-    i32 rezult=0;
+    i32 result=0;
     char buffer[256];
     string bufStr={.ptr=buffer, .length=sizeof(buffer)};
     StringBuilder* sb=StringBuilder_create();
     u64 i=0;
     while(true){
-        rezult=fgetc(file);
+        result=fgetc(file);
-        if(rezult==EOF){
+        if(result==EOF){
             if(ferror(file)) 
                 safethrow(ERR_IO, StringBuilder_free(sb));
             break;
         }
-        buffer[i%sizeof(buffer)]=(char)rezult;
+        buffer[i%sizeof(buffer)]=(char)result;
         i++;
         if(!(i%sizeof(buffer)))
             StringBuilder_append_string(sb,bufStr);

src/Filesystem/path.c

@@ -22,7 +22,7 @@ char* __path_concat(u32 n, ...){
     const char* output=totality;
     totality[totalLength]=0;
     
-    // copying content of all strings to rezult
+    // copying content of all strings to result
     u16 k=0;
     for(; k<n-1; k++){
         memcopy(parts[k], totality, lengths[k]);
@@ -74,11 +74,11 @@ char* path_parentDir(char* dir){
 
 char* path_basename(char* path, bool with_extension){
     i32 nameIndex=cptr_lastIndexOfChar(path, path_sep)+1;
-    string rezult=string_fromCptr(path+nameIndex);
+    string result=string_fromCptr(path+nameIndex);
     if(!with_extension){
-        i32 extIndex=cptr_lastIndexOfChar(rezult.ptr, '.');
+        i32 extIndex=cptr_lastIndexOfChar(result.ptr, '.');
         if(extIndex!=0 && extIndex!=-1)
-            rezult.length=extIndex;
+            result.length=extIndex;
     }
-    return string_extract(rezult);
+    return string_extract(result);
 }

src/Network/README.md

@@ -0,0 +1,4 @@
+# kerep network
+
+Don't forget to call `kn_tryInit()` before doint anything with network.
+ 

src/Network/network.c

@@ -0,0 +1,44 @@
+#include "network_internal.h"
+
+Maybe kn_tryInit(){
+#if _WIN32
+    // Initialize Winsock
+    WSADATA wsaData = {0};
+    int startupResult = WSAStartup(MAKEWORD(2,2), &wsaData);
+    if (startupResult != 0) {
+        char* errcode = toString_hex(&startupResult, sizeof(int), 0 , 1, 1);
+        safethrow(cptr_concat("WSAStartup failed with error: ", errcode), ;);
+    }
+#endif
+    return SUCCESS(UniNull);
+}
+
+Maybe kt_tryDispose(){
+#if _WIN32
+    // Deinitialize Winsock
+    int cleanupResult = WSACleanup();
+    if (cleanupResult != 0) {
+        char* errcode = toString_hex(&cleanupResult, sizeof(int), 0, 1, 1);
+        safethrow(cptr_concat("WSAStartup failed with error: ", errcode), ;);
+    }
+#endif
+    return SUCCESS(UniNull);
+}
+
+
+Maybe __kn_StdSocket_shutdown(i64 socketfd, knShutdownType direction){
+    if(shutdown(socketfd, (int)direction) == -1)
+        safethrow("can't shutdown socket", ;);
+    return MaybeNull;
+}
+
+Maybe __kn_StdSocket_close(i64 socketfd){
+#if KN_USE_WINSOCK
+    if(closesocket(socketfd) == -1)
+#else
+    if(close(socketfd) == -1)
+#endif
+        safethrow("can't close socket", ;);
+
+    return MaybeNull;
+}

src/Network/network.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "../base/base.h"
+
+#include "network_types.h"
+#include "sockets/knSocketTCP.h"
+#include "sockets/knSocketUDP.h"
+#include "sockets/knSocketChanneled.h"
+
+Maybe kn_tryInit();
+Maybe kt_tryDispose();
+
+#if __cplusplus
+}
+#endif

src/Network/network_internal.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "network.h"
+#include "socket_impl_includes.h"
+
+/// shutdown TCP/UDP/other std socket
+Maybe __kn_StdSocket_shutdown(i64 socketfd, knShutdownType direction);
+
+/// close TCP/UDP/other std socket
+Maybe __kn_StdSocket_close(i64 socketfd);
+
+static inline struct sockaddr_in knIPV4Endpoint_toSockaddr(knIPV4Endpoint end){
+    struct sockaddr_in saddr = {0};
+    saddr.sin_family = AF_INET;
+    saddr.sin_addr.s_addr = end.address.UintBigEndian;
+    saddr.sin_port = htons(end.port); /* transforms port number to big endian (network order) */
+    return saddr;
+}
+
+static inline knIPV4Endpoint knIPV4Endpoint_fromSockaddr(struct sockaddr_in saddr_ptr){
+    knIPV4Address ipv4 = knIPV4Address_fromU32(saddr_ptr.sin_addr.s_addr);
+    u16 port = ntohs(saddr_ptr.sin_port); /* transforms port number to little endian (normal order) */
+    return knIPV4Endpoint_create(ipv4, port);
+}
+
+#if __cplusplus
+}
+#endif

src/Network/network_types.c

@@ -0,0 +1,93 @@
+#include "network_types.h"
+
+char* __knIPV4Address_toString(void* p, u32 f){ return knIPV4Address_toString(p); }
+char* __knIPV4Endpoint_toString(void* p, u32 f){ return knIPV4Endpoint_toString(p); }
+
+kt_define(knIPV4Address, NULL, __knIPV4Address_toString);
+kt_define(knIPV4Endpoint, NULL, __knIPV4Endpoint_toString);
+
+
+Maybe knIPV4Address_fromStr(char* addrStr, knIPV4Address* addrVal){
+    char* addrStr_src=addrStr;
+    char* errmsg_extra="wrong char";
+    u8 c;
+    knIPV4Address addr;
+    addr.UintBigEndian=0;
+    u16 n=0;
+    for(u8 i=0; i<4; ){
+        c=*addrStr++;
+        switch (c){
+            case '\0':
+                if(i<3){
+                    errmsg_extra="end of string";
+                    goto default_case;
+                }
+                
+                addr.bytes[i++]=n;
+                n=0;
+                break;
+            case '.':
+                addr.bytes[i++]=n;
+                n=0;
+                break;
+            case '0': case '1': case '2': case '3': case '4':
+            case '5': case '6': case '7': case '8': case '9':
+                n=n*10+c-'0';
+                if(n>255) {
+                    errmsg_extra="one part of address > 255";
+                    goto default_case;
+                }
+                break;
+            default_case:
+            default:
+                u32 errmsgL=cptr_length(addrStr) + 80;
+                char* errmsg=malloc(errmsgL);
+                IFMSC(sprintf_s(errmsg, errmsgL, "wrong ip address string: %s\n   %s", addrStr_src, errmsg_extra), 
+                      sprintf(  errmsg,          "wrong ip address string: %s\n   %s", addrStr_src, errmsg_extra));
+                safethrow(errmsg,;);
+                break;
+        }
+    }
+    
+    *addrVal=addr;
+    return MaybeNull;
+}
+
+char* knIPV4Address_toString(knIPV4Address* address) {
+    char* a = toString_u64(address->bytes[0], 0, 0);
+    char* b = toString_u64(address->bytes[1], 0, 0);
+    char* c = toString_u64(address->bytes[2], 0, 0);
+    char* d = toString_u64(address->bytes[3], 0, 0);
+    char* s = cptr_concat(a,".",b,".",c,".",d);
+    free(a);
+    free(b);
+    free(c);
+    free(d);
+    return s;
+}
+
+
+Maybe knIPV4Endpoint_fromStr(char* endStr, knIPV4Endpoint* endVal){
+    i32 sep_i = cptr_seekChar(endStr, ':', 0, 48);
+    if(sep_i < 7)
+        safethrow(cptr_concat("can't find ':' in '", endStr, "'"), ;);
+    char* portBegin = endStr+sep_i+1;
+    u64 port = knPort_INVALID;
+    if(sscanf(portBegin, IFWIN("%llu", "%lu"), &port)!=1)
+        safethrow(cptr_concat("can't recognise port number in '", portBegin, "'"), ;)
+    
+    knIPV4Address addr = knIPV4Address_INVALID;
+    try(knIPV4Address_fromStr(endStr, &addr), _m865, ;);
+
+    *endVal = knIPV4Endpoint_create(addr, port);
+    return MaybeNull;
+}
+
+char* knIPV4Endpoint_toString(knIPV4Endpoint* end) {
+    char* a = knIPV4Address_toString(&end->address);
+    char* p = toString_u64(end->port, 0, 0);
+    char* s = cptr_concat(a,":",p);
+    free(a);
+    free(p);
+    return s;
+}

src/Network/network_types.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "../base/base.h"
+
+typedef u16 knPort;
+#define knPort_INVALID ((knPort)~0)
+#define knPort_isINVALID(PORT) (PORT == knPort_INVALID)
+
+typedef union knIPV4Address {
+    u32 UintBigEndian;
+    char bytes[4];
+} knIPV4Address;
+kt_declare(knIPV4Address);
+
+#define knIPV4Address_fromBytes(A, B, C, D) ((knIPV4Address){.bytes={A,B,C,D}})
+#define knIPV4Address_fromU32(N) ((knIPV4Address){.UintBigEndian=N})
+
+
+#define knIPV4Address_ANY      knIPV4Address_fromBytes(0,0,0,0)
+#define knIPV4Address_LOOPBACK knIPV4Address_fromBytes(127,0,0,1)
+#define knIPV4Address_INVALID  knIPV4Address_fromBytes(255,255,255,255)
+#define knIPV4Address_isINVALID(ADDR) (ADDR.UintBigEndian == ~0)
+
+///@return Maybe<null>
+Maybe knIPV4Address_fromStr(char* addrStr, knIPV4Address* addrPtr);
+
+char* knIPV4Address_toString(knIPV4Address* address);
+
+
+STRUCT(knIPV4Endpoint,
+    knIPV4Address address;
+    knPort port;
+)
+
+#define knIPV4Endpoint_create(ADDR, PORT) ((knIPV4Endpoint){ADDR, PORT})
+
+#define knIPV4Endpoint_INVALID knIPV4Endpoint_create(knIPV4Address_INVALID, knPort_INVALID)
+#define knIPV4Endpoint_isINVALID(ENDP) (knIPV4Address_isINVALID(ENDP.address) || knPort_isINVALID(ENDP.port))
+
+///@return Maybe<null>
+Maybe knIPV4Endpoint_fromStr(char* endStr, knIPV4Endpoint* endVal);
+
+char* knIPV4Endpoint_toString(knIPV4Endpoint* end);
+
+
+typedef enum knShutdownType {
+    knShutdownType_Receive = 0,
+    knShutdownType_Send = 1,
+    knShutdownType_Both = 2,
+} knShutdownType;
+
+#if __cplusplus
+}
+#endif

src/Network/socket_impl_includes.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#if defined(_WIN64) || defined(_WIN32)
+    #define KN_USE_WINSOCK 1
+#else 
+    #define KN_USE_WINSOCK 0
+#endif
+
+#if KN_USE_WINSOCK
+    #include <winsock2.h>
+    // #include <ws2tcpip.h>
+#else
+    #include <sys/types.h>
+    #include <sys/socket.h>
+    #include <netinet/in.h>
+    #include <arpa/inet.h>
+    #include <netdb.h>
+    #include <unistd.h>
+#endif
+
+#if __cplusplus
+}
+#endif

src/Network/sockets/knSocketChanneled.c

@@ -0,0 +1,52 @@
+#include "../network_internal.h"
+
+void __knSocketChanneled_close(void* p){ knSocketChanneled_close(p); }
+
+kt_define(knPackage, NULL, NULL);
+kt_define(knPackageQueueElem, NULL, NULL);
+kt_define(knChannel, NULL, NULL);
+kt_define(knSocketChanneled, __knSocketChanneled_close, NULL);
+
+Maybe knSocketChanneled_open(){
+    knSocketChanneled* newSocket=malloc(sizeof(knSocketChanneled));
+    newSocket->localEndpoint=knIPV4Endpoint_INVALID;
+    newSocket->remoteEndpoint=knIPV4Endpoint_INVALID;
+    newSocket->channels=NULL;
+    newSocket->channelsAmount=0;
+    return SUCCESS(UniHeapPtr(knSocketChanneled, newSocket));
+}
+
+Maybe knSocketChanneled_close(knSocketChanneled* socket){
+    try(__kn_StdSocket_close(socket->socketfd), _m762, ;);
+    free(socket);
+    return MaybeNull;
+}
+
+knChannel* __createChannel(){
+    knChannel* ch=malloc(sizeof(knChannel));
+    ch->queueStart=NULL;
+    return ch;
+}
+
+Maybe knSocketChanneled_createChannel(knSocketChanneled* socket){
+    if(socket->channelsAmount == 65535) 
+        safethrow("max amount of channels",;);
+    u16 channelsAmountPrev=socket->channelsAmount;
+    socket->channelsAmount++;
+    if(channelsAmountPrev==0) 
+        socket->channels=malloc(sizeof(knChannel*));
+    else 
+        socket->channels=realloc(socket->channels, socket->channelsAmount*sizeof(knChannel*));
+    socket->channels[channelsAmountPrev]=__createChannel();
+    return SUCCESS(UniUInt64(channelsAmountPrev));
+}
+
+Maybe knSocketChanneled_listen(knSocketChanneled* socket, knIPV4Endpoint localEndp);
+
+Maybe knSocketChanneled_connect(knSocketChanneled* socket, knIPV4Endpoint remoteEndp);
+
+Maybe knSocketChanneled_accept(knSocketChanneled* socket);
+
+Maybe knSocketChanneled_send(knSocketChanneled* socket, u16 destinationIndex, u8* data, u32 dataLength);
+
+Maybe knSocketChanneled_receive(knSocketChanneled* socket, u16 destinationIndex, u8* buffer, u32 bufferLength);

src/Network/sockets/knSocketChanneled.h

@@ -0,0 +1,77 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "../network_types.h"
+
+#define KNPAC_MAX_DATA_SIZE (65535-sizeof(knPackage)+sizeof(u8*))
+
+
+typedef enum __attribute__((__packed__)) knPacVersion {
+    knPac_V1=1
+} knPacVersion;
+
+static const char knPacHeader[5]={'k','n','p','a','c'};
+
+STRUCT(knPackage,
+    char header[5];          /* knpac */
+    knPacVersion version;    /* protocol version */
+    u16 data_size;           /* size of data block in bytes (1-KNPAC_MAX_DATA_SIZE) */
+    u32 channel_id;          /* id of knChannel in socket */
+    u32 package_num;         /* number in sequence of sent packages */
+    u64 data_hash;           /* hash64 of data */
+    u8* data;                /* ptr to data */
+)
+
+STRUCT(knPackageQueueElem,
+    knPackage package;
+    knPackageQueueElem* previousElem;
+    knPackageQueueElem* nextElem;
+)
+
+STRUCT(knChannel,
+    knPackageQueueElem* queueStart;
+)
+
+STRUCT(knSocketChanneled,
+    i64 socketfd;
+    knIPV4Endpoint localEndpoint;
+    knIPV4Endpoint remoteEndpoint;
+    u16 channelsAmount;
+    knChannel** channels;
+)
+
+///@return Maybe<knSocketChanneled*> new socket
+Maybe knSocketChanneled_open();
+
+///@return Maybe<void> error or nothing
+Maybe knSocketChanneled_close(knSocketChanneled* socket);
+
+///@return Maybe<u64> channel index
+Maybe knSocketChanneled_createChannel(knSocketChanneled* socket);
+
+///start listening at local endpoint
+///@return Maybe<void> error or nothing
+Maybe knSocketChanneled_listen(knSocketChanneled* socket, knIPV4Endpoint localEndp);
+
+///sets socket remote endpoint
+///@return Maybe<void> error or nothing
+Maybe knSocketChanneled_connect(knSocketChanneled* socket, knIPV4Endpoint remoteEndp);
+
+///@return Maybe<knSocketChanneled*> new socket connected to client
+Maybe knSocketChanneled_accept(knSocketChanneled* socket);
+
+///@param dataLength 0-4294967295
+///@return Maybe<void>
+Maybe knSocketChanneled_send(knSocketChanneled* socket, u16 destinationIndex, u8* data, u32 dataLength);
+
+///@param buffer buffer for receiving data
+///@param bufferLength 0-4294967295
+///@return Maybe<u64> received bytes amount
+Maybe knSocketChanneled_receive(knSocketChanneled* socket, u16 destinationIndex, u8* buffer, u32 bufferLength);
+
+#if __cplusplus
+}
+#endif

src/Network/sockets/knSocketTCP.c

@@ -0,0 +1,102 @@
+#include "../network_internal.h"
+
+void __knSocketTCP_close(void* p){ knSocketTCP_close(p); }
+
+kt_define(knSocketTCP, __knSocketTCP_close, NULL);
+
+Maybe knSocketTCP_open(bool allowReuse){
+    knSocketTCP* newSocket=malloc(sizeof(knSocketTCP));
+    newSocket->localEndpoint=knIPV4Endpoint_INVALID;
+    newSocket->remoteEndpoint=knIPV4Endpoint_INVALID;
+    newSocket->socketfd=socket(AF_INET, SOCK_STREAM, 0);
+    if(newSocket->socketfd==-1 || newSocket->socketfd == ~0)
+        safethrow("can't create socket", free(newSocket));
+    
+    // set value of REUSEADDR socket option
+    int opt_val = allowReuse;
+    if(setsockopt(newSocket->socketfd, SOL_SOCKET, SO_REUSEADDR, (void*)&opt_val, sizeof(opt_val)) != 0)
+        safethrow("can't set socket options", free(newSocket));
+    
+    return SUCCESS(UniHeapPtr(knSocketTCP, newSocket));
+}
+
+Maybe knSocketTCP_shutdown(knSocketTCP* socket, knShutdownType direction){
+    try(__kn_StdSocket_shutdown(socket->socketfd, direction), _m875, ;);
+    return MaybeNull;
+}
+
+Maybe knSocketTCP_close(knSocketTCP* socket){
+    try(__kn_StdSocket_close(socket->socketfd), _m875, ;);
+    free(socket);
+    return MaybeNull;
+}
+
+Maybe knSocketTCP_bindAndListen(knSocketTCP* socket, knIPV4Endpoint localEndp){
+    struct sockaddr_in servaddr = knIPV4Endpoint_toSockaddr(localEndp);
+    
+    if(bind(socket->socketfd, (void*)&servaddr, sizeof(servaddr)) != 0)
+        safethrow("socket bind failed", ;);
+
+    if(listen(socket->socketfd, 1024) != 0)
+        safethrow("socket listen failed", ;);
+
+    socket->localEndpoint = localEndp;
+    return MaybeNull;
+}
+
+Maybe knSocketTCP_connect(knSocketTCP* socket, knIPV4Endpoint remoteEnd){
+    struct sockaddr_in servaddr = knIPV4Endpoint_toSockaddr(remoteEnd);
+
+    if(connect(socket->socketfd, (struct sockaddr*)&servaddr, sizeof(servaddr)) !=0)
+        safethrow("socket connect failed",;);
+        
+    socket->remoteEndpoint=remoteEnd;
+    return MaybeNull;
+}
+
+Maybe knSocketTCP_accept(knSocketTCP* socket){
+    struct sockaddr_in remoteAddr = {0};
+    u64 remoteAddrSize = sizeof(remoteAddr);
+
+    i64 client_fd = accept(socket->socketfd, (struct sockaddr*)&remoteAddr, (void*)&remoteAddrSize);
+    if(client_fd == -1 || client_fd == ~0)
+        safethrow("can't accept client connection", ;);
+    
+    // if accept() didn't set remoteAddr for some reason
+    if(remoteAddr.sin_addr.s_addr == 0 && remoteAddr.sin_port == 0 && remoteAddr.sin_family == 0){
+        if(getpeername(client_fd, (struct sockaddr*)&remoteAddr, (void*)&remoteAddrSize) != 0)
+            safethrow("can't get connected client address", ;);
+    }
+
+    knSocketTCP* clientSocket = malloc(sizeof(knSocketTCP));
+    clientSocket->socketfd = client_fd;
+    clientSocket->localEndpoint = socket->localEndpoint;
+    clientSocket->remoteEndpoint = knIPV4Endpoint_fromSockaddr(remoteAddr);
+    return SUCCESS(UniHeapPtr(knSocketTCP, clientSocket));
+}
+
+Maybe knSocketTCP_send(knSocketTCP* socket, char* buffer, u32 dataLength){
+    u32 sentTotal = 0;
+    while(sentTotal < dataLength){
+        int sentCount = send(socket->socketfd, buffer+sentTotal, dataLength-sentTotal, 0);
+        if(sentCount == -1){
+            safethrow(
+                cptr_concat("can't send ", toString_u64(dataLength-sentTotal,0,0),
+                    " bytes out of ", toString_u64(dataLength,0,0),
+                    " at index ", toString_u64(sentTotal,0,0)
+                ),
+                ;);
+        }
+        sentTotal += sentCount;
+    }
+
+    return MaybeNull;
+}
+
+Maybe knSocketTCP_receive(knSocketTCP* socket, char* buffer, u32 bufferLength){
+    int receivedCount = recv(socket->socketfd, buffer, bufferLength, 0);
+    if(receivedCount == -1 || receivedCount == 0)
+        safethrow("can't receive data from socket", ;)
+
+    return SUCCESS(UniUInt64(receivedCount));
+}

src/Network/sockets/knSocketTCP.h

@@ -0,0 +1,56 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "../network_types.h"
+
+STRUCT(knSocketTCP,
+    i64 socketfd;
+    knIPV4Endpoint localEndpoint;
+    knIPV4Endpoint remoteEndpoint;
+    /* TODO socket status enum */
+)
+
+///@note EXAMPLE 1: socket = open(false); bind(socket, localhost:8080); close(socket); - the socket on port 8080 still unavaliable for several minutes
+///@note EXAMPLE 2: socket = open(true); bind(socket, localhost:8080); close(socket); - the socket on port 8080 can be opened again
+///@param allowReuse enables binding multiple sockets to single port. Set to TRUE on a listening socket if you want to bind it to the same port after close.
+///@return Maybe<knSocketTCP*> new socket
+Maybe knSocketTCP_open(bool allowReuse);
+
+///@param direction receive/send/both
+///@return Maybe<void> error or nothing
+Maybe knSocketTCP_shutdown(knSocketTCP* socket, knShutdownType direction);
+
+/// closes file descriptor and frees socket pointer
+///@return Maybe<void> error or nothing
+Maybe knSocketTCP_close(knSocketTCP* socket);
+
+/// binds socket to a local endpoint and starts listening for incoming TCP connections
+///@return Maybe<void> error or nothing
+Maybe knSocketTCP_bindAndListen(knSocketTCP* socket, knIPV4Endpoint localEndp);
+
+/// establishes TCP connection with a remote endpoint
+///@return Maybe<void> error or nothing
+Maybe knSocketTCP_connect(knSocketTCP* socket, knIPV4Endpoint remoteEnd);
+
+///@return Maybe<knSocketTCP*> new socket connected to client
+Maybe knSocketTCP_accept(knSocketTCP* socket);
+
+/// sends <dataLength> bytes from buffer
+///@param buffer buffer for receiving data
+///@param dataLength 0-4294967295
+///@return Maybe<void>
+Maybe knSocketTCP_send(knSocketTCP* socket, char* buffer, u32 dataLength);
+
+/// receives a package of any size
+/// (by TCP 32 bytes han be sent as 32x1byte, 4x8byte, 32x1byte or in any other combination)
+///@param buffer buffer for receiving data
+///@param bufferLength 0-4294967295
+///@return Maybe<u64> received bytes amount
+Maybe knSocketTCP_receive(knSocketTCP* socket, char* buffer, u32 bufferLength);
+
+#if __cplusplus
+}
+#endif

src/Network/sockets/knSocketUDP.c

@@ -0,0 +1,86 @@
+#include "../network_internal.h"
+
+void __knSocketUDP_close(void* p){ knSocketUDP_close(p); }
+
+kt_define(knSocketUDP, __knSocketUDP_close, NULL);
+
+Maybe knSocketUDP_open(bool allowReuse){
+    knSocketUDP* newSocket=malloc(sizeof(knSocketUDP));
+    newSocket->localEndpoint=knIPV4Endpoint_INVALID;
+    newSocket->socketfd=socket(AF_INET, SOCK_DGRAM, 0);
+    if(newSocket->socketfd==-1 || newSocket->socketfd == ~0)
+        safethrow("can't create socket", free(newSocket));
+    
+    // set value of REUSEADDR socket option
+    int opt_val = allowReuse;
+    if(setsockopt(newSocket->socketfd, SOL_SOCKET, SO_REUSEADDR, (void*)&opt_val, sizeof(opt_val)) != 0)
+        safethrow("can't set socket options", free(newSocket));
+    
+    return SUCCESS(UniHeapPtr(knSocketUDP, newSocket));
+}
+
+Maybe knSocketUDP_shutdown(knSocketUDP* socket, knShutdownType direction){
+    try(__kn_StdSocket_shutdown(socket->socketfd, direction), _m875, ;);
+    return MaybeNull;
+}
+
+Maybe knSocketUDP_close(knSocketUDP* socket){
+    try(__kn_StdSocket_close(socket->socketfd), _m875, ;);
+    free(socket);
+    return MaybeNull;
+}
+
+Maybe knSocketUDP_bind(knSocketUDP* socket, knIPV4Endpoint localEndp){
+    struct sockaddr_in servaddr = {
+        .sin_family = AF_INET,
+        .sin_addr.s_addr = localEndp.address.UintBigEndian,
+        .sin_port = htons(localEndp.port) /* transforms port to big endian */
+    };
+    
+    if(bind(socket->socketfd, (void*)&servaddr, sizeof(servaddr)) != 0)
+        safethrow("socket bind failed", ;);
+
+    socket->localEndpoint = localEndp;
+    return MaybeNull;
+}
+
+Maybe knSocketUDP_sendTo(knSocketUDP* socket, char* buffer, u32 dataLength, knIPV4Endpoint destEnd){
+    struct sockaddr_in dest_saddr = knIPV4Endpoint_toSockaddr(destEnd);
+    u32 sentCount = sendto(
+            socket->socketfd,
+            buffer,
+            dataLength, 
+            0, 
+            (struct sockaddr*)&dest_saddr,
+            sizeof(struct sockaddr_in)
+        );
+    
+    if(sentCount != dataLength) {
+        safethrow(
+            cptr_concat("can't send ", toString_u64(dataLength-sentCount,0,0),
+                " bytes out of ", toString_u64(dataLength,0,0)
+            ),
+            ;);
+    }
+
+    return MaybeNull;
+}
+
+Maybe knSocketUDP_receiveAny(knSocketUDP* socket, char* buffer, u32 bufferLength, knIPV4Endpoint* senderEnd){
+    struct sockaddr_in remote_saddr = {0};
+    u64 remote_saddr_size = sizeof(remote_saddr);
+    int receivedCount = recvfrom(
+        socket->socketfd,
+        buffer,
+        bufferLength,
+        0,
+        (struct sockaddr*)&remote_saddr,
+        (void*)&remote_saddr_size
+    );
+
+    if(receivedCount == -1 || receivedCount == 0)
+        safethrow("can't receive data from socket", ;)
+
+    *senderEnd = knIPV4Endpoint_fromSockaddr(remote_saddr);
+    return SUCCESS(UniUInt64(receivedCount));
+}

src/Network/sockets/knSocketUDP.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#if __cplusplus
+extern "C" {
+#endif
+
+#include "../network_types.h"
+
+STRUCT(knSocketUDP,
+    i64 socketfd;
+    knIPV4Endpoint localEndpoint;
+    /* TODO socket status enum */
+)
+
+///@note EXAMPLE 1: socket = open(false); bind(socket, localhost:8080); close(socket); - the socket on port 8080 still unavaliable for several minutes
+///@note EXAMPLE 2: socket = open(true); bind(socket, localhost:8080); close(socket); - the socket on port 8080 can be opened again
+///@param allowReuse enables binding multiple sockets to single port. Set to TRUE on a listening socket if you want to bind it to the same port after close.
+///@return Maybe<knSocketUDP*> new socket
+Maybe knSocketUDP_open(bool allowReuse);
+
+///@param direction receive/send/both
+///@return Maybe<void> error or nothing
+Maybe knSocketUDP_shutdown(knSocketUDP* socket, knShutdownType direction);
+
+/// closes file descriptor and frees socket pointer
+///@return Maybe<void> error or nothing
+Maybe knSocketUDP_close(knSocketUDP* socket);
+
+/// binds socket to a local endpoint
+///@return Maybe<void> error or nothing
+Maybe knSocketUDP_bind(knSocketUDP* socket, knIPV4Endpoint localEndp);
+
+/// sends one package to destination endpoint
+///@param buffer buffer for receiving data
+///@param dataLength 0-64k
+///@param destEnd destination endpoint
+///@return Maybe<void>
+Maybe knSocketUDP_sendTo(knSocketUDP* socket, char* buffer, u32 dataLength, knIPV4Endpoint destEnd);
+
+/// receives one package from anywhere
+///@param buffer buffer for receiving data
+///@param bufferLength 0-64k
+///@param senderEnd [OUT] endpoint UPD package was sent from
+///@return Maybe<u64> received bytes amount
+Maybe knSocketUDP_receiveAny(knSocketUDP* socket, char* buffer, u32 bufferLength, knIPV4Endpoint* senderEnd);
+
+#if __cplusplus
+}
+#endif

src/base/cptr.c

@@ -160,7 +160,7 @@ char* __cptr_concat(u32 n, ...){
     char* output=totality;
     totality[totalLength]=0;
     
-    // copying content of all strings to rezult
+    // copying content of all strings to result
     for(u16 k=0; k<n; k++){
         memcopy(strs[k], totality, lengths[k]);
         totality+=lengths[k];
@@ -212,6 +212,6 @@ char* cptr_replaceIn(const char* src, const char* str_old, const char* str_new,
     u32 src_remains_len=cptr_length(src);
     if(src_remains_len>0)
         StringBuilder_append_string(sb, (string){.ptr=(char*)src, .length=src_remains_len});
-    string rezult=StringBuilder_build(sb);
+    string result=StringBuilder_build(sb);
-    return rezult.ptr;
+    return result.ptr;
 }

src/base/errors.c

@@ -25,23 +25,23 @@ char* errname(ErrorId err){
 
 char* __genErrMsg(const char* errmsg, const char* srcfile, i32 line, const char* funcname){
     size_t bufsize=ERRMSG_MAXLENGTH;
-    char* rezult=malloc(bufsize);
+    char* result=malloc(bufsize);
     IFMSC(
-        sprintf_s(rezult,bufsize,"[%s:%d] %s() throwed error: %s",srcfile,line,funcname,errmsg),
+        sprintf_s(result,bufsize,"[%s:%d] %s() throwed error: %s",srcfile,line,funcname,errmsg),
-        sprintf(rezult,"[%s:%d] %s() throwed error: %s",srcfile,line,funcname,errmsg)
+        sprintf(result,"[%s:%d] %s() throwed error: %s",srcfile,line,funcname,errmsg)
     );
-    return rezult;
+    return result;
 }
 
 char* __extendErrMsg(const char* errmsg, const char* srcfile, i32 line, const char* funcname){
     size_t bufsize=cptr_length(errmsg)+ERRMSG_MAXLENGTH;
-    char* rezult=malloc(bufsize);
+    char* result=malloc(bufsize);
     IFMSC(
-        sprintf_s(rezult,bufsize,"%s\n \\___[%s:%d] %s()",errmsg,srcfile,line,funcname),
+        sprintf_s(result,bufsize,"%s\n \\___[%s:%d] %s()",errmsg,srcfile,line,funcname),
-        sprintf(rezult,"%s\n \\___[%s:%d] %s()",errmsg,srcfile,line,funcname)
+        sprintf(result,"%s\n \\___[%s:%d] %s()",errmsg,srcfile,line,funcname)
     );
     free(errmsg);
-    return rezult;
+    return result;
 }
 
 void Maybe_free(Maybe e){

src/base/errors.h

@@ -60,10 +60,10 @@ char* __unknownErr( );
     __RETURN_EXCEPTION(((char*)__genErrMsg(E, __FILE__,__LINE__,__func__))); \
 }
 
-#define try_cpp(_funcCall, _rezult, freeMem) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
+#define try_cpp(_funcCall, _result, freeMem) Maybe _result=_funcCall; if(_result.errmsg){ \
     freeMem; \
-    _rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
+    _result.errmsg=__extendErrMsg(_result.errmsg, __FILE__,__LINE__,__func__); \
-    return _rezult; \
+    return _result; \
 }
 
 #else
@@ -73,16 +73,16 @@ char* __unknownErr( );
     __RETURN_EXCEPTION(((char*)__genErrMsg((__stringify_err(E)), __FILE__,__LINE__,__func__))); \
 }
 
-#define try(_funcCall, _rezult, freeMem) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
+#define try(_funcCall, _result, freeMem) Maybe _result=_funcCall; if(_result.errmsg){ \
     freeMem; \
-    _rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
+    _result.errmsg=__extendErrMsg(_result.errmsg, __FILE__,__LINE__,__func__); \
-    return _rezult; \
+    return _result; \
 }
 #endif
 
-#define tryLast(_funcCall, _rezult, ON_EXIT) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
+#define tryLast(_funcCall, _result, ON_EXIT) Maybe _result=_funcCall; if(_result.errmsg){ \
-    _rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
+    _result.errmsg=__extendErrMsg(_result.errmsg, __FILE__,__LINE__,__func__); \
-    __EXIT(_rezult.errmsg); \
+    __EXIT(_result.errmsg); \
 }
 
 #if __cplusplus

src/base/type_system/init.c

@@ -5,6 +5,7 @@
 #include "../../Hashtable/Hashtable.h"
 #include "../../String/StringBuilder.h"
 #include "../../Filesystem/filesystem.h"
+#include "../../Network/network.h"
 #include "base_toString.h"
 
 void kt_initKerepTypes(){
@@ -82,6 +83,13 @@ void kt_initKerepTypes(){
     // StringBuilder
     kt_register(StringBuilder);
 
-    //File
+    // File
     kt_register(FileHandle);
+
+    // Network
+    kt_register(knIPV4Address);
+    kt_register(knIPV4Endpoint);
+    kt_register(knSocketTCP);
+    kt_register(knSocketUDP);
+    kt_register(knSocketChanneled);
 }

src/base/type_system/kt_functions.c

@@ -52,9 +52,14 @@ ktid ktid_last=-1;
 ENUM(ktDescriptorsState,
     NotInitialized, Initializing, Initialized
 )
+
 ktDescriptorsState initState=NotInitialized;
 
-void kt_beginInit(){
+bool _printDebugMessages = false;
+
+void kt_beginInit(bool printDebugMessages){
+    _printDebugMessages = printDebugMessages;
+    if(printDebugMessages)
         kprintf("\e[94mtype descriptors initializing...\n");
     __descriptorPointers=Autoarr_create(Pointer, 256, 256);
 }
@@ -65,6 +70,7 @@ void kt_endInit(){
     typeDescriptors=(ktDescriptor**)Autoarr_toArray(__descriptorPointers);
     Autoarr_free(__descriptorPointers,true);
     if(typeDescriptors==NULL) throw(ERR_NULLPTR);
+    if(_printDebugMessages)
         kprintf("\e[92minitialized %u type descriptors\n", ktid_last);
 }
 
@@ -74,10 +80,9 @@ void __kt_register(ktDescriptor* descriptor){
 }
 
 ktDescriptor* ktDescriptor_get(ktid id){
-    if(id>ktid_last || id==ktid_undefined) {
+    if(id>ktid_last || id==ktid_undefined)
-        kprintf("\ntype id: %u\n",id);
+        throw(cptr_concat("invalid type id ", toString_i64(id)));
-        throw("invalid type id");
+    
-    }
     return typeDescriptors[id];
 }
 

src/base/type_system/kt_functions.h

@@ -17,7 +17,7 @@ void __kt_register(ktDescriptor* descriptor);
     __kt_register(&ktDescriptor_##TYPE##_Ptr); \
     ktid_##TYPE##_Ptr=ktid_last;
 
-void kt_beginInit();
+void kt_beginInit(bool printDebugMessages);
 void kt_endInit();
 
 /// @param id id of registered type

src/base/type_system/unitype.c

@@ -85,11 +85,11 @@ char *Unitype_toString(Unitype u, u32 fmt)
         valuestr = type->toString(u.VoidPtr, fmt);
     else
         valuestr = "ERR_NO_TOSTRING_FUNC";
-    char *rezult = cptr_concat("{ type: ", type->name, ", allocated on heap: ", (u.allocatedInHeap ? "true" : "false"),
+    char *result = cptr_concat("{ type: ", type->name, ", allocated on heap: ", (u.allocatedInHeap ? "true" : "false"),
                                ", value:", valuestr, " }");
     if (type->toString)
         free(valuestr);
-    return rezult;
+    return result;
 }
 
 void printuni(Unitype v)

src/kprint/kprint.c

@@ -39,8 +39,8 @@ Maybe __next_toString(kp_fmt f, void* object){
 }
 
 Maybe check_argsN(u8 n){
-    if(n%2 != 0) safethrow("kprint recieved non-even number of arguments",;);
+    if(n%2 != 0) safethrow("kprint received non-even number of arguments",;);
-    if(n > 32) safethrow("kprint recieved >32 number of arguments",;);
+    if(n > 32) safethrow("kprint received >32 number of arguments",;);
     return MaybeNull;
 }
 
@@ -53,8 +53,8 @@ Maybe __ksprint(u8 n, kp_fmt* formats, __kp_value_union* objects){
         StringBuilder_append_cptr(strb, mStr.value.VoidPtr);
         Unitype_free(mStr.value);
     }
-    char* rezult=StringBuilder_build(strb).ptr;
+    char* result=StringBuilder_build(strb).ptr;
-    return SUCCESS(UniHeapPtr(char, rezult));
+    return SUCCESS(UniHeapPtr(char, result));
 }
 
 Maybe __kfprint(FILE* file, u8 n, kp_fmt* formats, __kp_value_union* objects){
@@ -90,7 +90,6 @@ void __kprint(u8 n, kp_fmt* formats, __kp_value_union* objects){
 #define FOREGROUND_YELLOW FOREGROUND_GREEN | FOREGROUND_RED
 
 DWORD kp_fgColor_toWin(kp_fgColor f){
-    //kprintf("fg: %x\n", f);
     switch(f){
         case kp_fgBlack: return 0;
         case kp_fgRedD: return FOREGROUND_RED;
@@ -113,7 +112,6 @@ DWORD kp_fgColor_toWin(kp_fgColor f){
 }
 
 DWORD kp_bgColor_toWin(kp_bgColor f){
-    //kprintf("bg: %x\n", f);
     switch(f){
         case kp_bgBlack: return 0;
         case kp_bgRedD: return BACKGROUND_RED;
@@ -199,12 +197,12 @@ static const char* _kp_colorNames[16]={
     "white"
 };
 
-char* kp_bgColor_toString(kp_fmt c){
+char* kp_bgColor_toString(kp_bgColor c){
     u32 color_index=(c&0x00f00000)>>20;
     if(color_index>15) throw(ERR_WRONGINDEX);
     return _kp_colorNames[color_index];
 }
-char* kp_fgColor_toString(kp_fmt c){
+char* kp_fgColor_toString(kp_fgColor c){
     u32 color_index=(c&0x00f00000)>>24;
     if(color_index>15) throw(ERR_WRONGINDEX);
     return _kp_colorNames[color_index];

src/kprint/kprint_colors.h

@@ -4,6 +4,8 @@
 extern "C" {
 #endif
 
+#include "../base/type_system/typedef_macros.h"
+
 //         10000000 00000000  00000000 00000000
 //         ^   ^^^^
 //         |   color num

src/kprint/kprintf.h

@@ -9,6 +9,49 @@ extern "C" {
 // cross-platform printf analog
 void kprintf(const char* format, ...);
 
+// printf format terminal color sequence
+#define _PRINTF_COLOR(N) "\e["#N"m"
+
+// foreground dark color codes
+#define FBLK _PRINTF_COLOR(30)
+#define FREDD _PRINTF_COLOR(31)
+#define FGRND _PRINTF_COLOR(32)
+#define FYELD _PRINTF_COLOR(33)
+#define FBLUD _PRINTF_COLOR(34)
+#define FMAGD _PRINTF_COLOR(35)
+#define FCYND _PRINTF_COLOR(36)
+#define FGRY _PRINTF_COLOR(37)
+
+// foreground bright color codes
+#define FGRYD _PRINTF_COLOR(90)
+#define FRED _PRINTF_COLOR(91)
+#define FGRN _PRINTF_COLOR(92)
+#define FYEL _PRINTF_COLOR(93)
+#define FBLU _PRINTF_COLOR(94)
+#define FMAG _PRINTF_COLOR(95)
+#define FCYN _PRINTF_COLOR(96)
+#define FWHI _PRINTF_COLOR(97)
+
+// background dark color codes
+#define BBLK _PRINTF_COLOR(40)
+#define BREDD _PRINTF_COLOR(41)
+#define BGRND _PRINTF_COLOR(42)
+#define BYELD _PRINTF_COLOR(43)
+#define BBLUD _PRINTF_COLOR(44)
+#define BMAGD _PRINTF_COLOR(45)
+#define BCYND _PRINTF_COLOR(46)
+#define BGRY _PRINTF_COLOR(47)
+
+// background bright color codes
+#define BGRYD _PRINTF_COLOR(100)
+#define BRED _PRINTF_COLOR(101)
+#define BGRN _PRINTF_COLOR(102)
+#define BYEL _PRINTF_COLOR(103)
+#define BBLU _PRINTF_COLOR(104)
+#define BMAG _PRINTF_COLOR(105)
+#define BCYN _PRINTF_COLOR(106)
+#define BWHI _PRINTF_COLOR(107)
+
 #if __cplusplus
 }
 #endif

tests/main.cpp

@@ -3,11 +3,11 @@
 i32 main(){
     if(setlocale(LC_CTYPE, "C.UTF-8")!=0)
         kprintf("\e[93msetlocale failed\n");
-    kt_beginInit();
+    kt_beginInit(true);
     kt_initKerepTypes();
     kt_endInit();
     test_all();
     kt_free();
-    kprintf("\e[0m\n");
+    kprintf("\e[37m\n");
     return 0;
 }

tests/test_kprint.c

@@ -5,7 +5,7 @@ void test_kprint(){
     //int
     kprint(kp_fgCyan|
         kp_i,-8888, kp_c,' ', kp_i,0, kp_c,' ', kp_i,1234567890987654321LL,kp_s,"\n");
-    //u
+    //uint
     kprint(kp_fgGreen|
         kp_u|kp_post,-8888, kp_c|kp_post|kp_upper,' ', kp_u,0, kp_c,' ', 
         kp_u,1234567890987654321LL, kp_c,'\n');
@@ -15,7 +15,7 @@ void test_kprint(){
         kp_f,-1.0f, kp_c,' ', kp_f,0.0f, kp_c,' ', kp_f,1.0f, kp_c,'\n', 
         kp_f|kp_post,0.000020004f, kp_c,' ',
         kp_f|kp_post|kp_upper,4000.0109f, kp_c,'\n');
-    //f64
+    //double
     kprint(kp_fgYellowD|
         kp_f,-4000.0109, kp_c,' ', kp_f,-0.000020004, kp_c,'\n', 
         kp_f,-1.0, kp_c,' ', kp_f,0.0, kp_c,' ', kp_f,1.0, kp_c,'\n', 

tests/test_network.c

@@ -0,0 +1,231 @@
+#include "tests.h"
+#include "../src/Network/network.h"
+#include <pthread.h>
+
+static void __test_knIPV4Address_fromStr(char* addrStr, u8 a, u8 b, u8 c, u8 d){
+    knIPV4Address addr;
+    tryLast(knIPV4Address_fromStr(addrStr, &addr), maybeAddr, ;)
+    kprintf("\e[92mknIPV4Address_fromStr(\e[96m%s\e[92m) -> ", addrStr);
+    if(addr.UintBigEndian != knIPV4Address_fromBytes(a,b,c,d).UintBigEndian){
+        kprintf("\e[91m%u.%u.%u.%u\n", 
+            (u8)addr.bytes[0], (u8)addr.bytes[1], (u8)addr.bytes[2], (u8)addr.bytes[3]);
+        throw("knIPV4Address_fromStr returned wrong value");
+    }
+    else {
+        kprintf("\e[94m%u.%u.%u.%u\n",
+            (u8)addr.bytes[0], (u8)addr.bytes[1], (u8)addr.bytes[2], (u8)addr.bytes[3]);
+    }
+    
+}
+#define test_knIPV4Address_fromStr(a,b,c,d) __test_knIPV4Address_fromStr(#a"."#b"."#c"."#d, a,b,c,d)
+
+static void test_network_types(){
+    PRINT_SIZEOF(knIPV4Address);
+    PRINT_SIZEOF(knPort);
+    PRINT_SIZEOF(knIPV4Endpoint);
+    PRINT_SIZEOF(knSocketTCP);
+    PRINT_SIZEOF(knSocketUDP);
+    PRINT_SIZEOF(knPackage);
+    PRINT_SIZEOF(knChannel);
+
+    test_knIPV4Address_fromStr(127,0,0,1);
+    test_knIPV4Address_fromStr(34,255,45,0);
+    test_knIPV4Address_fromStr(3,3,3,128);
+    fflush(stdout);
+}
+
+static pthread_mutex_t stdout_mutex = {0};
+
+// thread-safe print
+#define kprintf_safe(ARGS...) pthread_mutex_lock(&stdout_mutex); kprintf(ARGS); fflush(stdout); pthread_mutex_unlock(&stdout_mutex);
+
+typedef struct {
+    knSocketTCP* socket_client;
+    knIPV4Endpoint serverEnd;
+} tcp_client_connect_async_data;
+
+void* tcp_client_connect_async(void* _data){
+    tcp_client_connect_async_data* data = _data;
+    tryLast(knSocketTCP_connect(data->socket_client, data->serverEnd), _m8531,;);
+    
+    kprintf_safe("\e[92mclient socket connected to server\n");
+    free(data);
+    return NULL;
+}
+
+static void test_tcp(){
+    kprintf("\e[96m----------[test_network/tcp]----------\n");
+    knIPV4Endpoint serverEnd = knIPV4Endpoint_create(knIPV4Address_LOOPBACK, 4444);
+    knSocketTCP *socket_server, *clientConnection, *socket_client;
+    // server
+    {
+        tryLast(knSocketTCP_open(true), m_socketS, ;);
+        socket_server=m_socketS.value.VoidPtr;
+        kprintf("\e[92mTCP server socket created\n");    
+        
+        tryLast(knSocketTCP_bindAndListen(socket_server, serverEnd), _m81775, ;)
+        kprintf("\e[92mserver socket is listening\n");
+    }
+    // client
+    {
+        tryLast(knSocketTCP_open(false), m_socketC, ;);
+        socket_client=m_socketC.value.VoidPtr;
+        kprintf("\e[92mTCP client socket created\n");
+        
+        tcp_client_connect_async_data* client_connection_data = malloc(sizeof(tcp_client_connect_async_data));
+        client_connection_data->serverEnd = serverEnd;
+        client_connection_data->socket_client = socket_client;
+        pthread_t client_connection_thread;
+        fflush(stdout);
+        if(pthread_create(&client_connection_thread, NULL, tcp_client_connect_async, client_connection_data) != 0)
+            throw("can't create client connection thread");
+        if(pthread_detach(client_connection_thread) != 0)
+            throw("can't detatch client connection thread");
+    }
+    // server
+    {
+        tryLast(knSocketTCP_accept(socket_server), m_connection, ;);
+        clientConnection = m_connection.value.VoidPtr;
+        kprintf_safe("\e[92mserver accepted client connection\n");
+    }
+    // client
+    {
+        const char client_msg[] = "ping";
+        tryLast(knSocketTCP_send(socket_client, client_msg, sizeof(client_msg)), _mu75q2, ;);
+        kprintf("\e[92mmessage sent to server\n\e[94m");
+    }
+    // server
+    {
+        char received_client_msg[32];
+        tryLast(knSocketTCP_receive(clientConnection, received_client_msg, sizeof(received_client_msg)), m_recCount, ;);
+        u64 recCount = m_recCount.value.UInt64;
+        fwrite(received_client_msg, sizeof(char), recCount, stdout);
+        fputc('\n', stdout);
+        if(!cptr_equals(received_client_msg, "ping"))
+            throw("received_client_msg != \"ping\"");
+        kprintf("\e[92mmessage received by server\n");
+
+        const char server_msg[] = "pong";
+        tryLast(knSocketTCP_send(clientConnection, server_msg, sizeof(server_msg)), _mu75q2, ;);
+        kprintf("\e[92mmessage sent to client\n\e[94m");
+        fflush(stdout);
+    }
+    // client
+    {
+        char received_server_msg[32];
+        tryLast(knSocketTCP_receive(socket_client, received_server_msg, sizeof(received_server_msg)), m_recCount, ;);
+        u64 recCount = m_recCount.value.UInt64;
+        fwrite(received_server_msg, sizeof(char), recCount, stdout);
+        fputc('\n', stdout);
+        if(!cptr_equals(received_server_msg, "pong"))
+            throw("received_server_msg != \"pong\"");
+        kprintf("\e[92mmessage received by client\n");
+        fflush(stdout);
+    }
+    // server
+    {
+        tryLast(knSocketTCP_shutdown(clientConnection, knShutdownType_Both), _m2351, ;);
+        tryLast(knSocketTCP_close(clientConnection), _m9776, ;);
+        kprintf("\e[92mclient connection closed\n");
+
+        tryLast(knSocketTCP_close(socket_server), _m676, ;);
+        kprintf("\e[92mTCP server socket closed\n");
+    }
+    // client
+    {
+        tryLast(knSocketTCP_close(socket_client), _m964, ;);
+        kprintf("\e[92mTCP client socket closed\n");
+    }
+    fflush(stdout);
+}
+
+void test_udp(){
+    kprintf("\e[96m----------[test_network/udp]----------\n");
+    knIPV4Endpoint serverEnd = knIPV4Endpoint_create(knIPV4Address_LOOPBACK, 4444);
+    knSocketUDP *socket_server, *socket_client;
+    // server
+    {
+        tryLast(knSocketUDP_open(true), m_socketS, ;);
+        socket_server=m_socketS.value.VoidPtr;
+        kprintf("\e[92mUDP server socket created\n");    
+        
+        tryLast(knSocketUDP_bind(socket_server, serverEnd), _m81775, ;)
+        kprintf("\e[92mserver socket is bound\n");
+    }
+    // client
+    {
+        tryLast(knSocketUDP_open(false), m_socketC, ;);
+        socket_client=m_socketC.value.VoidPtr;
+        kprintf("\e[92mUDP client socket created\n");
+        
+        const char client_msg[] = "ping";
+        tryLast(knSocketUDP_sendTo(socket_client, client_msg, sizeof(client_msg), serverEnd), _mu75q2, ;);
+        kprintf("\e[92mmessage sent to server\n\e[94m");
+    }
+    // server
+    {
+        char received_client_msg[32];
+        knIPV4Endpoint clientEnd = knIPV4Endpoint_INVALID;
+        tryLast(knSocketUDP_receiveAny(socket_server, received_client_msg, sizeof(received_client_msg), &clientEnd), m_recCount, ;);
+        u64 recCount = m_recCount.value.UInt64;
+        fwrite(received_client_msg, sizeof(char), recCount, stdout);
+        fputc('\n', stdout);
+        if(!cptr_equals(received_client_msg, "ping"))
+            throw("received_client_msg != \"ping\"");
+        kprintf("\e[92mmessage received by server\n");
+
+        const char server_msg[] = "pong";
+        tryLast(knSocketUDP_sendTo(socket_server, server_msg, sizeof(server_msg), clientEnd), _mu75q2, ;);
+        char* adrstr = knIPV4Endpoint_toString(&clientEnd);
+        kprintf("\e[92mmessage sent to client (%s)\n\e[94m", adrstr);
+        free(adrstr);
+        fflush(stdout);
+    }
+    // client
+    {
+        char received_server_msg[32];
+        knIPV4Endpoint senderEnd = knIPV4Endpoint_INVALID;
+        tryLast(knSocketUDP_receiveAny(socket_client, received_server_msg, sizeof(received_server_msg), &senderEnd), m_recCount, ;);
+        u64 recCount = m_recCount.value.UInt64;
+        fwrite(received_server_msg, sizeof(char), recCount, stdout);
+        fputc('\n', stdout);
+        if(!cptr_equals(received_server_msg, "pong"))
+            throw("received_server_msg != \"pong\"");
+        char* adrstr = knIPV4Endpoint_toString(&serverEnd);
+        kprintf("\e[92mmessage received by client (%s)\n", adrstr);
+        free(adrstr);
+        fflush(stdout);
+    }
+    // server
+    {
+        tryLast(knSocketUDP_close(socket_server), _m676, ;);
+        kprintf("\e[92mUDP server socket closed\n");
+    }
+    // client
+    {
+        tryLast(knSocketUDP_close(socket_client), _m964, ;);
+        kprintf("\e[92mUDP client socket closed\n");
+    }
+    fflush(stdout);
+}
+
+void test_network(){
+    optime(__func__,1,({
+        kprintf("\e[96m------------[test_network]------------\n");
+        tryLast(kn_tryInit(), _mjj64g, ;);
+        kprintf("\e[92mkerepNetwork initialized\n");
+        
+        if(pthread_mutex_init(&stdout_mutex, NULL) != 0)
+            throw("can't init mutex");
+
+        test_network_types();
+        test_tcp();
+        test_udp();
+
+        if(pthread_mutex_destroy(&stdout_mutex) != 0)
+            throw("can't destroy mutex");
+
+        tryLast(kt_tryDispose(), _m88ag, ;);
+        kprintf("\e[92mkerepNetwork disposed\n");
+    }));
+}

tests/tests.h

@@ -19,6 +19,7 @@ void test_rng_algorithms();
 void test_kprint_colors();
 void test_kprint();
 void test_type_system();
+void test_network();
 
 inline void test_all(){
     kprintf("\e[97mkerep tests are starting!\n");
@@ -36,6 +37,7 @@ inline void test_all(){
         test_hash_functions();
         test_hashtable();
         test_dtsod();
+        test_network();
         kprintf("\e[96m--------------------------------------\e[0m\n");
     );
 }