picotcp: add msvc-specific arch include. Win: never stop net stack

core/deps/picotcp/include/arch/pico_msvc.h

@@ -0,0 +1,53 @@
+#ifndef PICO_SUPPORT_MSVC
+#define PICO_SUPPORT_MSVC
+
+#include <stdio.h>
+#include <time.h>
+#include <windows.h>
+
+#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000Ui64
+#else
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000ULL
+#endif
+
+#define dbg printf
+
+#define stack_fill_pattern(...) do {} while(0)
+#define stack_count_free_words(...) do {} while(0)
+#define stack_get_free_words() (0)
+
+#define pico_zalloc(x) calloc(x, 1)
+#define pico_free(x) free(x)
+
+static inline uint32_t PICO_TIME_MS(void)
+{
+	FILETIME ft;
+	unsigned __int64 tmpres = 0;
+
+	GetSystemTimeAsFileTime(&ft);
+
+	tmpres |= ft.dwHighDateTime;
+	tmpres <<= 32;
+	tmpres |= ft.dwLowDateTime;
+
+	tmpres /= 10;  /*convert into microseconds*/
+	/*converting file time to unix epoch*/
+	tmpres -= DELTA_EPOCH_IN_MICROSECS;
+
+	return (uint32_t)(tmpres / 1000);	// milliseconds
+}
+
+static inline uint32_t PICO_TIME(void)
+{
+	return PICO_TIME_MS() / 1000;
+}
+
+static inline void PICO_IDLE(void)
+{
+    // Not used anyway usleep(5000);
+}
+
+#endif  /* PICO_SUPPORT_MSVC */
+
+

core/deps/picotcp/include/arch/pico_posix.h

@@ -8,9 +8,7 @@
 
 #include <string.h>
 #include <stdio.h>
-#ifndef _MSC_VER
 #include <unistd.h>
-#endif
 #include <sys/time.h>
 
 /*
@@ -132,7 +130,7 @@ extern void *pico_thread_create(void *(*routine)(void *), void *arg);
 
 static inline void PICO_IDLE(void)
 {
-    // Not used anyway usleep(5000);
+    usleep(5000);
 }
 
 #endif  /* PICO_SUPPORT_POSIX */

core/deps/picotcp/include/pico_config.h

@@ -240,7 +240,8 @@ static inline uint64_t long_long_be(uint64_t le)
 # include "arch/pico_generic_gcc.h"
 #elif defined __KERNEL__
 # include "arch/pico_linux.h"
-/* #elif defined ... */
+#elif defined _MSC_VER
+# include "arch/pico_msvc.h"
 #else
 # include "arch/pico_posix.h"
 #endif

core/hw/modem/picoppp.cpp

@@ -114,6 +114,12 @@ bool start_pico()
     	    0
     	};
 
+#ifdef _WIN32
+    // No de-init on Windows yet
+    if (pico_stack_inited)
+	return;
+#endif
+
     if (!pico_stack_inited)
     {
     	pico_stack_init();
@@ -310,6 +316,7 @@ bool start_pico()
 
 void stop_pico()
 {
+#ifndef _WIN32
 	if (ppp)
 	{
 		pico_ppp_destroy(ppp);
@@ -325,4 +332,5 @@ void stop_pico()
 		pico_device_destroy(tun);
 		tun = NULL;
 	}
+#endif
 }