Recursive mutexes in os_win.c. (CVS 2969)

FossilOrigin-Name: dd3e07cae4d0cbd4f8977e1dd11e0103e0e45b75

3 files changed, 15 insertions, 10 deletions

diff --git a/manifest b/manifest
index 587c62a28..d7edeadf2 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Convert\sthe\sunix\sdriver\sto\suse\sa\srecusive\smutex.\s\sSimilar\schanges\sto\sthe\nwindows\sdriver\sare\spending.\s(CVS\s2968)
-D 2006-01-18T14:06:38
+C Recursive\smutexes\sin\sos_win.c.\s(CVS\s2969)
+D 2006-01-18T14:20:17
 F Makefile.in ab3ffd8d469cef4477257169b82810030a6bb967
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -57,7 +57,7 @@ F src/os_test.c 49833426101f99aee4bb5f6a44b7c4b2029fda1c
 F src/os_test.h 903c93554c23d88f34f667f1979e4a1cee792af3
 F src/os_unix.c 7c085f807922309006f00b5fd8963865b92ff939
 F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
-F src/os_win.c b9cb6254698cd7c2587c27e65b78c585473c6ffa
+F src/os_win.c e1c0600129f2468c8a852ae61f7b7bacf72aa7dc
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
 F src/pager.c e84713f7196a81103cc8e2b55cebbaa1723c4926
 F src/pager.h e0acb095b3ad0bca48f2ab00c87346665643f64f
@@ -341,7 +341,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 86eab9e53db8d7fecc789fe3d8cd8d7be3196fed
-R 79ed702da5352631a14fd5c72072c4b8
+P 8830bbbac8e0c9243956aac42dc9f86a0bd1fa07
+R 7ad1313dca6d71746c68d32b98aa5742
 U drh
-Z d577dbc25e956de86c8f9b79929b1f93
+Z 25414a8af7b032353ad4c225fe562fb4
diff --git a/manifest.uuid b/manifest.uuid
index f6a576c10..2776453eb 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-8830bbbac8e0c9243956aac42dc9f86a0bd1fa07
\ No newline at end of file
+dd3e07cae4d0cbd4f8977e1dd11e0103e0e45b75
\ No newline at end of file
diff --git a/src/os_win.c b/src/os_win.c
index e184c3018..2d2341a08 100644
--- a/src/os_win.c
+++ b/src/os_win.c
@@ -1068,6 +1068,7 @@ int sqlite3WinSleep(int ms){
 */
 static int inMutex = 0;
 #ifdef SQLITE_W32_THREADS
+  static HANDLE mutexOwner;
   static CRITICAL_SECTION cs;
 #endif
 
@@ -1092,13 +1093,13 @@ void sqlite3WinEnterMutex(){
     }
   }
   EnterCriticalSection(&cs);
+  mutexOwner = GetCurrentThread();
 #endif
-  assert( !inMutex );
-  inMutex = 1;
+  inMutex++;
 }
 void sqlite3WinLeaveMutex(){
   assert( inMutex );
-  inMutex = 0;
+  inMutex--;
 #ifdef SQLITE_W32_THREADS
   LeaveCriticalSection(&cs);
 #endif
@@ -1108,7 +1109,11 @@ void sqlite3WinLeaveMutex(){
 ** Return TRUE if we are currently within the mutex and FALSE if not.
 */
 int sqlite3WinInMutex(){
+#ifdef SQLITE_W32_THREADS
+  return inMutex && mutexOwner==GetCurrentThread();
+#else
   return inMutex;
+#endif
 }