Fix transport and fund flow protocol edge cases

src/xmtdx/client.py

@@ -75,11 +75,11 @@ def _classify_fund_flow(records: list[TransactionRecord]) -> FundFlow:
         if not direction:
             continue
 
-        if amount >= 1_000_000:
+        if amount > 1_000_000:
             stats[f"super_{direction}"] += amount
-        elif amount >= 200_000:
+        elif amount > 200_000:
             stats[f"large_{direction}"] += amount
-        elif amount >= 40_000:
+        elif amount > 40_000:
             stats[f"medium_{direction}"] += amount
         else:
             stats[f"small_{direction}"] += amount

src/xmtdx/commands/fund_flow.py

@@ -52,8 +52,7 @@ class GetHistoryFundFlowCmd(BaseCommand[list[HistoricalFundFlow]]):
             
             # 记录格式：4字节日期 + 8个4字节自定义浮点金额
             # [0]日期, [1..4]流入(超/大/中/小), [5..8]流出(超/大/中/小)
-            # 这里的 i 是 uint32 原始字节，随后需用 _decode_volume 解码
-            raw_data = struct.unpack("<Iiiiiiiii", body[pos:pos+36])
+            raw_data = struct.unpack("<IIIIIIIII", body[pos:pos+36])
             
             raw_date = raw_data[0]
             year = raw_date // 10000

src/xmtdx/commands/security_quotes.py

@@ -17,22 +17,14 @@ from .base import BaseCommand
 def _format_server_time(raw: int) -> str:
     """将 reversed_bytes0 整数转换为 HH:MM:SS.mmm 字符串。
 
-    方法来自 pytdx issue #187。raw 为 14999212 → "14:59:57.163"
+    该字段编码为“小时 + 百万分之一小时的小数部分”。
+    例如：14999212 → "14:59:57.163"
     """
-    s = str(raw)
-    if len(s) < 6:
-        return s
-    # 最后6位：前两位=秒，后四位=毫秒的某种编码
-    time_part = s[:-6] + ":"
-    last6 = int(s[-6:])
-    if int(s[-6:-4]) < 60:
-        time_part += s[-6:-4] + ":"
-        time_part += f"{last6 % 10000 * 60 / 10000.0:06.3f}"
-    else:
-        mins = last6 * 60 // 1000000
-        secs = (last6 * 60 % 1000000) * 60 / 1000000.0
-        time_part += f"{mins:02d}:{secs:06.3f}"
-    return time_part
+    hours, fractional_hour = divmod(raw, 1_000_000)
+    total_millis = fractional_hour * 3600 // 1000
+    minutes, remainder = divmod(total_millis, 60_000)
+    seconds, millis = divmod(remainder, 1000)
+    return f"{hours:02d}:{minutes:02d}:{seconds:02d}.{millis:03d}"
 
 
 class GetSecurityQuotesCmd(BaseCommand[list[SecurityQuote]]):

src/xmtdx/models/stats.py

@@ -20,9 +20,9 @@ class FundFlow:
     
     # 流入项 (Buy)
     super_in: float   # 超大单流入 (>100万)
-    large_in: float   # 大单流入 (20万-100万)
-    medium_in: float  # 中单流入 (4万-20万)
-    small_in: float   # 小单流入 (<4万)
+    large_in: float   # 大单流入 (>20万 且 <=100万)
+    medium_in: float  # 中单流入 (>4万 且 <=20万)
+    small_in: float   # 小单流入 (<=4万)
     
     # 流出项 (Sell)
     super_out: float

src/xmtdx/transport/sync.py

@@ -126,7 +126,15 @@ class TdxConnection:
             sock.close()
             raise TdxConnectionError(f"无法连接 {self.host}:{self.port}: {e}") from e
         self._sock = sock
-        self._send_setup()
+        try:
+            self._send_setup()
+        except Exception:
+            try:
+                sock.close()
+            except OSError:
+                pass
+            self._sock = None
+            raise
 
     def close(self) -> None:
         """关闭连接。"""