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Overview
Comment: | 360894 Threads inherit floating point config from their creator thread |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | core-8-4-branch |
Files: | files | file ages | folders |
SHA1: |
2a5f53e79703bf636fb4411a299e5e8a |
User & Date: | dgp 2012-11-13 21:16:13 |
Context
2012-11-14
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09:07 | Workaround for mingw versions which don't provide _fpcontrol in float.h check-in: 4a2030278d user: jan.nijtmans tags: core-8-4-branch | |
00:28 | Release branch for Tcl 8.4.20. check-in: 32948f74ee user: dgp tags: core-8-4-20-rc | |
2012-11-13
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21:22 | 360894 Threads inherit floating point config from their creator thread. check-in: 5e4a7a9ee2 user: dgp tags: core-8-5-branch | |
21:16 | 360894 Threads inherit floating point config from their creator thread check-in: 2a5f53e797 user: dgp tags: core-8-4-branch | |
21:03 | merge 8.4 Closed-Leaf check-in: fbae294921 user: dgp tags: bug-3567063 | |
2012-11-07
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17:24 | 3574493 Avoid hanging on exit due to use of synchronization calls in routines called by DllMain(). check-in: 42933eb98a user: dgp tags: core-8-4-branch | |
Changes
Changes to win/tclWinThrd.c.
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9 10 11 12 13 14 15 16 17 18 19 20 21 22 | * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclWinInt.h" #include <fcntl.h> #include <io.h> #include <sys/stat.h> /* * This is the master lock used to serialize access to other * serialization data structures. */ | > | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclWinInt.h" #include <fcntl.h> #include <float.h> #include <io.h> #include <sys/stat.h> /* * This is the master lock used to serialize access to other * serialization data structures. */ |
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118 119 120 121 122 123 124 125 126 127 128 129 130 131 | typedef struct WinCondition { CRITICAL_SECTION condLock; /* Lock to serialize queuing on the condition */ struct ThreadSpecificData *firstPtr; /* Queue pointers */ struct ThreadSpecificData *lastPtr; } WinCondition; /* *---------------------------------------------------------------------- * * TclpThreadCreate -- * * This procedure creates a new thread. | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | typedef struct WinCondition { CRITICAL_SECTION condLock; /* Lock to serialize queuing on the condition */ struct ThreadSpecificData *firstPtr; /* Queue pointers */ struct ThreadSpecificData *lastPtr; } WinCondition; /* * The per thread data passed from TclpThreadCreate * to TclWinThreadStart. */ typedef struct WinThread { LPTHREAD_START_ROUTINE lpStartAddress; /* Original startup routine */ LPVOID lpParameter; /* Original startup data */ unsigned int fpControl; /* Floating point control word from the * main thread */ } WinThread; /* *---------------------------------------------------------------------- * * TclWinThreadStart -- * * This procedure is the entry point for all new threads created * by Tcl on Windows. * * Results: * Various, depending on the result of the wrapped thread start * routine. * * Side effects: * Arbitrary, since user code is executed. * *---------------------------------------------------------------------- */ static DWORD WINAPI TclWinThreadStart( LPVOID lpParameter) /* The WinThread structure pointer passed * from TclpThreadCreate */ { WinThread *winThreadPtr = (WinThread *) lpParameter; unsigned int fpmask; LPTHREAD_START_ROUTINE lpOrigStartAddress; LPVOID lpOrigParameter; if (!winThreadPtr) { return TCL_ERROR; } fpmask = _MCW_EM | _MCW_RC | _MCW_PC; #if defined(_MSC_VER) && _MSC_VER >= 1200 fpmask |= _MCW_DN; #endif _controlfp(winThreadPtr->fpControl, fpmask); lpOrigStartAddress = winThreadPtr->lpStartAddress; lpOrigParameter = winThreadPtr->lpParameter; ckfree((char *)winThreadPtr); return lpOrigStartAddress(lpOrigParameter); } /* *---------------------------------------------------------------------- * * TclpThreadCreate -- * * This procedure creates a new thread. |
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145 146 147 148 149 150 151 152 153 154 155 156 | Tcl_ThreadId *idPtr; /* Return, the ID of the thread */ Tcl_ThreadCreateProc proc; /* Main() function of the thread */ ClientData clientData; /* The one argument to Main() */ int stackSize; /* Size of stack for the new thread */ int flags; /* Flags controlling behaviour of * the new thread */ { HANDLE tHandle; EnterCriticalSection(&joinLock); #if defined(_MSC_VER) || defined(__MSVCRT__) || defined(__BORLANDC__) | > > > > > > | > | < | | 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 | Tcl_ThreadId *idPtr; /* Return, the ID of the thread */ Tcl_ThreadCreateProc proc; /* Main() function of the thread */ ClientData clientData; /* The one argument to Main() */ int stackSize; /* Size of stack for the new thread */ int flags; /* Flags controlling behaviour of * the new thread */ { WinThread *winThreadPtr; /* Per-thread startup info */ HANDLE tHandle; winThreadPtr = (WinThread *)ckalloc(sizeof(WinThread)); winThreadPtr->lpStartAddress = (LPTHREAD_START_ROUTINE) proc; winThreadPtr->lpParameter = clientData; winThreadPtr->fpControl = _controlfp(0, 0); EnterCriticalSection(&joinLock); #if defined(_MSC_VER) || defined(__MSVCRT__) || defined(__BORLANDC__) tHandle = (HANDLE) _beginthreadex(NULL, (unsigned) stackSize, (Tcl_ThreadCreateProc*) TclWinThreadStart, winThreadPtr, 0, (unsigned *)idPtr); #else tHandle = CreateThread(NULL, (DWORD) stackSize, TclWinThreadStart, winThreadPtr, 0, (LPDWORD)idPtr); #endif if (tHandle == NULL) { LeaveCriticalSection(&joinLock); return TCL_ERROR; } else { if (flags & TCL_THREAD_JOINABLE) { |
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