Add RTX-RTOS support

src/arch.h

@@ -8,6 +8,7 @@
 #define MG_ARCH_FREERTOS_TCP 5
 #define MG_ARCH_FREERTOS_LWIP 6
 #define MG_ARCH_AZURERTOS 7
+#define MG_ARCH_RTX_LWIP 8
 
 #if !defined(MG_ARCH)
 #if defined(__unix__) || defined(__APPLE__)

src/arch_rtx_lwip.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#if MG_ARCH == MG_ARCH_RTX_LWIP
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined(__GNUC__)
+#include <sys/stat.h>
+#include <sys/time.h>
+#else
+struct timeval {
+  time_t tv_sec;
+  long tv_usec;
+};
+#endif
+
+#include <lwip/sockets.h>
+
+#if LWIP_SOCKET != 1
+// Sockets support disabled in LWIP by default
+#error Set LWIP_SOCKET variable to 1 (in lwipopts.h)
+#endif
+
+#define mkdir(a, b) (-1)
+
+#ifndef MG_IO_SIZE
+#define MG_IO_SIZE 512
+#endif
+
+#ifndef MG_PATH_MAX
+#define MG_PATH_MAX 128
+#endif
+
+
+#endif

src/sock.c

@@ -170,7 +170,7 @@ static void mg_set_non_blocking_mode(SOCKET fd) {
   const BaseType_t off = 0;
   if (setsockopt(fd, 0, FREERTOS_SO_RCVTIMEO, &off, sizeof(off)) != 0) (void) 0;
   if (setsockopt(fd, 0, FREERTOS_SO_SNDTIMEO, &off, sizeof(off)) != 0) (void) 0;
-#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP
+#elif MG_ARCH == MG_ARCH_FREERTOS_LWIP || MG_ARCH == MG_ARCH_RTX_LWIP
   lwip_fcntl(fd, F_SETFL, O_NONBLOCK);
 #elif MG_ARCH == MG_ARCH_AZURERTOS
   fcntl(fd, F_SETFL, O_NONBLOCK);