Fix C header generation

Author: cjdsellers

nautilus_trader/core/includes/common.h

@@ -201,6 +201,10 @@ typedef enum LogLevel {
  * A real-time clock which uses system time.
  *
  * Timestamps are guaranteed to be unique and monotonically increasing.
+ *
+ * # Threading
+ *
+ * The clock holds thread-local runtime state and must remain on its originating thread.
  */
 typedef struct LiveClock LiveClock;
 
@@ -230,6 +234,10 @@ typedef struct LogGuard LogGuard;
  * A static test clock.
  *
  * Stores the current timestamp internally which can be advanced.
+ *
+ * # Threading
+ *
+ * This clock is thread-affine; use it only from the thread that created it.
  */
 typedef struct TestClock TestClock;
 

nautilus_trader/core/rust/common.pxd

@@ -106,6 +106,10 @@ cdef extern from "../includes/common.h":
     # A real-time clock which uses system time.
     #
     # Timestamps are guaranteed to be unique and monotonically increasing.
+    #
+    # # Threading
+    #
+    # The clock holds thread-local runtime state and must remain on its originating thread.
     cdef struct LiveClock:
         pass
 
@@ -133,6 +137,10 @@ cdef extern from "../includes/common.h":
     # A static test clock.
     #
     # Stores the current timestamp internally which can be advanced.
+    #
+    # # Threading
+    #
+    # This clock is thread-affine; use it only from the thread that created it.
     cdef struct TestClock:
         pass