Fix race-condition in thread_keypress()

include/shared.h

@@ -18,6 +18,7 @@ u64 mydivc64 (const u64 dividend, const u64 divisor);
 void naive_replace (char *s, const u8 key_char, const u8 replace_char);
 void naive_escape (char *s, size_t s_max, const u8 key_char, const u8 escape_char);
 
+void hc_sleep_ms (const int msec);
 void hc_sleep    (const int sec);
 
 #endif // _SHARED_H

src/shared.c

@@ -74,11 +74,20 @@ void naive_escape (char *s, size_t s_max, const u8 key_char, const u8 escape_cha
   strncpy (s, s_escaped, s_max - 1);
 }
 
-void hc_sleep (const int sec)
+void hc_sleep_ms (const int msec)
 {
   #if defined (_WIN)
-  #define sleep(x) Sleep ((x) * 1000)
+  Sleep (msec);
+  #else
+  usleep (msec * 1000);
   #endif
+}
 
+void hc_sleep (const int sec)
+{
+  #if defined (_WIN)
+  Sleep (sec * 1000);
+  #else
   sleep (sec);
+  #endif
 }

src/terminal.c

@@ -27,6 +27,7 @@
 #include "loopback.h"
 #include "data.h"
 #include "status.h"
+#include "shared.h"
 #include "terminal.h"
 
 extern hc_global_data_t data;
@@ -59,6 +60,9 @@ void clear_prompt ()
 void *thread_keypress (void *p)
 {
   opencl_ctx_t *opencl_ctx = data.opencl_ctx;
+
+  while (opencl_ctx->devices_status == STATUS_INIT) hc_sleep_ms (100);
+
   hashconfig_t *hashconfig = data.hashconfig;
   hashes_t     *hashes     = data.hashes;