From 94cfb27da3941eea2b20867eacc09a5b91168438 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Thu, 30 Jul 1998 13:51:57 +0000
Subject: Thu Jul 30 23:12:45 1998  Ross Johnson 
 <rpj@ixobrychus.canberra.edu.au>

	* implement.h: Remove _pthread_find_entry() prototype.

	* private.c: Extend comments.
	Remove _pthread_find_entry() - no longer needed.

	* create.c (_pthread_start_call): Add call to TlsSetValue() to
	store the thread ID.

	* dll.c (PthreadsEntryPoint): Implement. This is called
	whenever a process loads the DLL. Used to initialise thread
	local storage.

	* implement.h: Add _pthread_threadID_TlsIndex.
	Add ()s around _PTHREAD_VALID expression.

	* misc.c (pthread_self): Re-implement using Win32 TLS to store
	the threads own ID.
---
 dll.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 dll.c

(limited to 'dll.c')

diff --git a/dll.c b/dll.c
new file mode 100644
index 0000000..518d443
--- /dev/null
+++ b/dll.c
@@ -0,0 +1,52 @@
+/*
+ * dll.c
+ *
+ * Description:
+ * This translation unit implements DLL initialisation.
+ */
+
+/* We use the DLL entry point function to set up per thread storage
+   specifically to hold the threads own thread ID.
+
+   The thread ID is stored by _pthread_start_call().
+
+   The thread ID is retrieved by pthread_self().
+
+ */
+
+#include <windows.h>
+
+/* Global index for TLS data. */
+DWORD _pthread_threadID_TlsIndex;
+
+BOOL WINAPI PthreadsEntryPoint(HINSTANCE dllHandle,
+			  DWORD reason,
+			  LPVOID situation)
+{
+  
+
+  switch (reason)
+    {
+    case DLL_THREAD_ATTACH:
+    case DLL_THREAD_DETACH:
+      break;
+
+    case DLL_PROCESS_ATTACH:
+      _pthread_threadID_TlsIndex = TlsAlloc();
+
+      if (_pthread_threadID_TlsIndex == 0xFFFFFFFF)
+	{
+	  return FALSE;
+	}
+      break;
+
+    case DLL_PROCESS_DETACH:
+      (void) TlsFree(_pthread_threadID_TlsIndex);
+      break;
+
+    default:
+      return FALSE;
+    }
+
+  return TRUE;
+}
-- 
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