static void setrounding(TaskData *mdTaskData, Handle args)
{
switch (get_C_long(mdTaskData, DEREFWORDHANDLE(args)))
{
case POLY_ROUND_TONEAREST: _controlfp(_RC_NEAR, _MCW_RC); break; // Choose nearest
case POLY_ROUND_DOWNWARD: _controlfp(_RC_DOWN, _MCW_RC); break; // Towards negative infinity
case POLY_ROUND_UPWARD: _controlfp(_RC_UP, _MCW_RC); break; // Towards positive infinity
case POLY_ROUND_TOZERO: _controlfp(_RC_CHOP, _MCW_RC); break; // Truncate towards zero
}
}
static void setrounding(TaskData *taskData, Handle args)
{
switch (get_C_long(taskData, DEREFWORDHANDLE(args)))
{
case POLY_ROUND_TONEAREST: __asm__("mtfsfi 7,0"); break; /* Choose nearest */
case POLY_ROUND_DOWNWARD: __asm__("mtfsfi 7,3"); break; /* Towards negative infinity */
case POLY_ROUND_UPWARD: __asm__("mtfsfi 7,2"); break; /* Towards positive infinity */
case POLY_ROUND_TOZERO: __asm__("mtfsfi 7,1"); break; /* Truncate towards zero */
}
}
static void setrounding(TaskData *taskData, Handle args)
{
switch (get_C_long(taskData, DEREFWORDHANDLE(args)))
{
case POLY_ROUND_TONEAREST: fpsetround(FP_RN); break; /* Choose nearest */
case POLY_ROUND_DOWNWARD: fpsetround(FP_RM); break; /* Towards negative infinity */
case POLY_ROUND_UPWARD: fpsetround(FP_RP); break; /* Towards positive infinity */
case POLY_ROUND_TOZERO: fpsetround(FP_RZ); break; /* Truncate towards zero */
}
}
static void setrounding(TaskData *taskData, Handle args)
{
switch (get_C_long(taskData, DEREFWORDHANDLE(args)))
{
case POLY_ROUND_TONEAREST: fesetround(FE_TONEAREST); break; // Choose nearest
case POLY_ROUND_DOWNWARD: fesetround(FE_DOWNWARD); break; // Towards negative infinity
case POLY_ROUND_UPWARD: fesetround(FE_UPWARD); break; // Towards positive infinity
case POLY_ROUND_TOZERO: fesetround(FE_TOWARDZERO); break; // Truncate towards zero
}
}
static void setrounding(TaskData *taskData, Handle args)
{
fpu_control_t ctrl;
_FPU_GETCW(ctrl);
ctrl &= ~_FPU_RC_ZERO; /* Mask off any existing rounding. */
switch (get_C_long(taskData, DEREFWORDHANDLE(args)))
{
case POLY_ROUND_TONEAREST: ctrl |= _FPU_RC_NEAREST;
case POLY_ROUND_DOWNWARD: ctrl |= _FPU_RC_DOWN;
case POLY_ROUND_UPWARD: ctrl |= _FPU_RC_UP;
case POLY_ROUND_TOZERO: ctrl |= _FPU_RC_ZERO;
}
_FPU_SETCW(ctrl);
}
Handle OS_spec_dispatch_c(TaskData *taskData, Handle args, Handle code)
{
unsigned c = get_C_unsigned(taskData, DEREFWORD(code));
switch (c)
{
case 0: /* Return our OS type. Not in any structure. */
return Make_arbitrary_precision(taskData, 1); /* 1 for Windows. */
/* Windows-specific functions. */
case 1000: /* execute */
return execute(taskData, args);
case 1001: /* Get input stream as text. */
return openProcessHandle(taskData, args, TRUE, TRUE);
case 1002: /* Get output stream as text. */
return openProcessHandle(taskData, args, FALSE, TRUE);
case 1003: /* Get input stream as binary. */
return openProcessHandle(taskData, args, TRUE, FALSE);
case 1004: /* Get output stream as binary. */
return openProcessHandle(taskData, args, FALSE, FALSE);
case 1005: /* Get result of process. */
{
PHANDLETAB hnd = get_handle(DEREFWORD(args), HE_PROCESS);
if (hnd == 0)
raise_syscall(taskData, "Process is closed", EINVAL);
// Close the streams. Either of them may have been
// passed to the stream package.
if (hnd->entry.process.hInput != INVALID_HANDLE_VALUE)
CloseHandle(hnd->entry.process.hInput);
hnd->entry.process.hInput = INVALID_HANDLE_VALUE;
if (hnd->entry.process.hEvent)
CloseHandle(hnd->entry.process.hEvent);
hnd->entry.process.hEvent = NULL;
if (hnd->entry.process.readToken)
{
PIOSTRUCT strm =
get_stream(hnd->entry.process.readToken);
if (strm != NULL) close_stream(strm);
}
hnd->entry.process.readToken = 0;
if (hnd->entry.process.hOutput != INVALID_HANDLE_VALUE)
CloseHandle(hnd->entry.process.hOutput);
hnd->entry.process.hOutput = INVALID_HANDLE_VALUE;
if (hnd->entry.process.writeToken)
{
PIOSTRUCT strm =
get_stream(hnd->entry.process.writeToken);
if (strm != NULL) close_stream(strm);
}
hnd->entry.process.writeToken = 0;
// See if it's finished.
while (true) {
DWORD dwResult;
if (GetExitCodeProcess(hnd->entry.process.hProcess, &dwResult) == 0)
raise_syscall(taskData, "GetExitCodeProcess failed",
-(int)GetLastError());
if (dwResult != STILL_ACTIVE) {
/* Finished - return the result. */
/* Note: we haven't closed the handle because we might want to ask
for the result again. We only close it when we've garbage-collected
the token. Doing this runs the risk of running out of handles.
Maybe change it and remember the result in ML. */
return Make_arbitrary_precision(taskData, dwResult);
}
// Block and try again.
WaitHandle waiter(hnd->entry.process.hProcess);
processes->ThreadPauseForIO(taskData, &waiter);
}
}
case 1006: /* Return a constant. */
{
unsigned i = get_C_unsigned(taskData, DEREFWORD(args));
if (i >= sizeof(winConstVec)/sizeof(winConstVec[0]))
raise_syscall(taskData, "Invalid index", 0);
return Make_arbitrary_precision(taskData, winConstVec[i]);
}
/* Registry functions. */
case 1007: // Open a key within one of the roots.
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return openRegistryKey(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1008: // Open a subkey of an opened key.
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return openRegistryKey(taskData, args, hnd->entry.hKey);
}
case 1009: // Create a subkey within one of the roots.
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return createRegistryKey(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1010: // Create a subkey within an opened key.
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return createRegistryKey(taskData, args, hnd->entry.hKey);
}
case 1011: // Close a registry handle.
{
PHANDLETAB hnd = get_handle(DEREFWORD(args), HE_REGISTRY);
if (hnd != 0) close_handle(hnd);
return Make_arbitrary_precision(taskData, 0);
}
case 1012: // Get a value
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return queryRegistryKey(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1013: // Get a value
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return queryRegistryKey(taskData, args, hnd->entry.hKey);
}
case 1014: // Delete a subkey
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return deleteRegistryKey(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1015: // Delete a subkey
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return deleteRegistryKey(taskData, args, hnd->entry.hKey);
}
case 1016: // Set a value
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return setRegistryKey(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1017: // Set a value
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return setRegistryKey(taskData, args, hnd->entry.hKey);
}
case 1018: // Enumerate a key in the predefined keys
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return enumerateRegistry(taskData, args, hkPredefinedKeyTab[keyIndex], TRUE);
}
case 1019: // Enumerate a key in an opened key
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return enumerateRegistry(taskData, args, hnd->entry.hKey, TRUE);
}
case 1020: // Enumerate a value in the predefined keys
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return enumerateRegistry(taskData, args, hkPredefinedKeyTab[keyIndex], FALSE);
}
case 1021: // Enumerate a value in an opened key
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return enumerateRegistry(taskData, args, hnd->entry.hKey, FALSE);
}
case 1022: // Delete a value
{
unsigned keyIndex = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(0));
// This should only ever happen as a result of a fault in
// the Windows structure.
if (keyIndex >= sizeof(hkPredefinedKeyTab)/sizeof(hkPredefinedKeyTab[0]))
raise_syscall(taskData, "Invalid index", 0);
return deleteRegistryValue(taskData, args, hkPredefinedKeyTab[keyIndex]);
}
case 1023: // Delete a value
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_REGISTRY);
if (hnd == 0)
raise_syscall(taskData, "Handle is closed", -ERROR_INVALID_HANDLE);
return deleteRegistryValue(taskData, args, hnd->entry.hKey);
}
case 1030: // Convert UTC time values to local time. -- No longer used??
{
FILETIME ftUTC, ftLocal;
/* Get the file time. */
getFileTimeFromArb(taskData, DEREFWORDHANDLE(args), &ftUTC);
if (! FileTimeToLocalFileTime(&ftUTC, &ftLocal))
raise_syscall(taskData, "FileTimeToLocalFileTime failed",
-(int)GetLastError());
return Make_arb_from_Filetime(taskData, ftLocal);
}
case 1031: // Convert local time values to UTC. -- No longer used??
{
FILETIME ftUTC, ftLocal;
/* Get the file time. */
getFileTimeFromArb(taskData, DEREFWORDHANDLE(args), &ftLocal);
if (! LocalFileTimeToFileTime(&ftLocal, &ftUTC))
raise_syscall(taskData, "LocalFileTimeToFileTime failed",
-(int)GetLastError());
return Make_arb_from_Filetime(taskData, ftUTC);
}
case 1032: // Get volume information.
{
TCHAR rootName[MAX_PATH], volName[MAX_PATH], sysName[MAX_PATH];
DWORD dwVolSerial, dwMaxComponentLen, dwFlags;
Handle volHandle, sysHandle, serialHandle, maxCompHandle;
Handle resultHandle;
POLYUNSIGNED length = Poly_string_to_C(DEREFWORD(args), rootName, MAX_PATH);
if (length > MAX_PATH)
raise_syscall(taskData, "Root name too long", ENAMETOOLONG);
if (!GetVolumeInformation(rootName, volName, MAX_PATH,
&dwVolSerial, &dwMaxComponentLen, &dwFlags,
sysName, MAX_PATH))
raise_syscall(taskData, "GetVolumeInformation failed",
-(int)GetLastError());
volHandle = SAVE(C_string_to_Poly(taskData, volName));
sysHandle = SAVE(C_string_to_Poly(taskData, sysName));
serialHandle = Make_arbitrary_precision(taskData, dwVolSerial);
maxCompHandle = Make_arbitrary_precision(taskData, dwMaxComponentLen);
resultHandle = alloc_and_save(taskData, 4);
DEREFHANDLE(resultHandle)->Set(0, DEREFWORDHANDLE(volHandle));
DEREFHANDLE(resultHandle)->Set(1, DEREFWORDHANDLE(sysHandle));
DEREFHANDLE(resultHandle)->Set(2, DEREFWORDHANDLE(serialHandle));
DEREFHANDLE(resultHandle)->Set(3, DEREFWORDHANDLE(maxCompHandle));
return resultHandle;
}
case 1033:
{
TCHAR fileName[MAX_PATH], execName[MAX_PATH];
POLYUNSIGNED length = Poly_string_to_C(DEREFWORD(args), fileName, MAX_PATH);
HINSTANCE hInst;
if (length > MAX_PATH)
raise_syscall(taskData, "File name too long", ENAMETOOLONG);
hInst = FindExecutable(fileName, NULL, execName);
if ((POLYUNSIGNED)hInst <= 32)
{
raise_syscall(taskData, "FindExecutable failed", -(int)(POLYUNSIGNED)hInst);
}
return SAVE(C_string_to_Poly(taskData, execName));
}
case 1034: // Open a document
{
SHELLEXECUTEINFO shellEx;
memset(&shellEx, 0, sizeof(shellEx));
shellEx.cbSize = sizeof(shellEx);
shellEx.lpVerb = _T("open");
shellEx.lpFile = Poly_string_to_T_alloc(DEREFWORD(args));
shellEx.hwnd = hMainWindow;
shellEx.nShow = SW_SHOWNORMAL;
BOOL fRes = ShellExecuteEx(&shellEx);
free((void*)shellEx.lpFile);
if (! fRes)
raise_syscall(taskData, "ShellExecuteEx failed", 0-GetLastError());
return Make_arbitrary_precision(taskData, 0);
}
case 1035: // Launch an application.
{
SHELLEXECUTEINFO shellEx;
memset(&shellEx, 0, sizeof(shellEx));
shellEx.cbSize = sizeof(shellEx);
shellEx.lpVerb = _T("open");
shellEx.lpFile = Poly_string_to_T_alloc(args->WordP()->Get(0));
shellEx.lpParameters = Poly_string_to_T_alloc(args->WordP()->Get(1));
shellEx.nShow = SW_SHOWNORMAL;
BOOL fRes = ShellExecuteEx(&shellEx);
free((void*)shellEx.lpFile);
free((void*)shellEx.lpParameters);
if (! fRes)
raise_syscall(taskData, "ShellExecuteEx failed", 0-GetLastError());
return Make_arbitrary_precision(taskData, 0);
}
case 1036: // Does the process have its own console?
return Make_arbitrary_precision(taskData, hMainWindow != NULL ? 1: 0);
case 1037: // Simple execute.
return simpleExecute(taskData, args);
// DDE
case 1038: // Start DDE dialogue.
{
Handle handToken;
PHANDLETAB pTab;
HCONV hcDDEConv;
TCHAR *serviceName = Poly_string_to_T_alloc(args->WordP()->Get(0));
TCHAR *topicName = Poly_string_to_T_alloc(args->WordP()->Get(1));
/* Send a request to the main thread to do the work. */
hcDDEConv = StartDDEConversation(serviceName, topicName);
free(serviceName); free(topicName);
if (hcDDEConv == 0) raise_syscall(taskData, "DdeConnect failed", 0);
// Create an entry to return the conversation.
handToken = make_handle_entry(taskData);
pTab = &handleTable[STREAMID(handToken)];
pTab->entryType = HE_DDECONVERSATION;
pTab->entry.hcDDEConv = hcDDEConv;
return handToken;
}
case 1039: // Send DDE execute request.
{
PHANDLETAB hnd =
get_handle(DEREFHANDLE(args)->Get(0), HE_DDECONVERSATION);
LRESULT res;
char *command;
if (hnd == NULL)
{
raise_syscall(taskData, "DDE Conversation is closed", 0);
}
command = Poly_string_to_C_alloc(args->WordP()->Get(1));
/* Send a request to the main thread to do the work. */
res = ExecuteDDE(command, hnd->entry.hcDDEConv);
free(command);
if (res == -1) raise_syscall(taskData, "DdeClientTransaction failed", 0);
else return Make_arbitrary_precision(taskData, res);
}
case 1040: // Close a DDE conversation.
{
PHANDLETAB hnd = get_handle(args->Word(), HE_DDECONVERSATION);
if (hnd != 0) close_handle(hnd);
return Make_arbitrary_precision(taskData, 0);
}
// Configuration functions.
case 1050: // Get version data
{
OSVERSIONINFO osver;
ZeroMemory(&osver, sizeof(OSVERSIONINFO));
osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
// GetVersionEx is deprecated in Windows 8.1
if (! GetVersionEx(&osver))
raise_syscall(taskData, "GetVersionEx failed", -(int)GetLastError());
Handle major = Make_arbitrary_precision(taskData, osver.dwMajorVersion);
Handle minor = Make_arbitrary_precision(taskData, osver.dwMinorVersion);
Handle build = Make_arbitrary_precision(taskData, osver.dwBuildNumber);
Handle platform = Make_arbitrary_precision(taskData, osver.dwPlatformId);
Handle version = SAVE(C_string_to_Poly(taskData, osver.szCSDVersion));
Handle resVal = alloc_and_save(taskData, 5);
DEREFHANDLE(resVal)->Set(0, DEREFWORDHANDLE(major));
DEREFHANDLE(resVal)->Set(1, DEREFWORDHANDLE(minor));
DEREFHANDLE(resVal)->Set(2, DEREFWORDHANDLE(build));
DEREFHANDLE(resVal)->Set(3, DEREFWORDHANDLE(platform));
DEREFHANDLE(resVal)->Set(4, DEREFWORDHANDLE(version));
return resVal;
}
case 1051: // Get windows directory
{
TCHAR path[MAX_PATH+1];
if (GetWindowsDirectory(path, sizeof(path)/sizeof(TCHAR)) == 0)
raise_syscall(taskData, "GetWindowsDirectory failed", -(int)GetLastError());
return SAVE(C_string_to_Poly(taskData, path));
}
case 1052: // Get system directory
{
TCHAR path[MAX_PATH+1];
if (GetSystemDirectory(path, sizeof(path)/sizeof(TCHAR)) == 0)
raise_syscall(taskData, "GetSystemDirectory failed", -(int)GetLastError());
return SAVE(C_string_to_Poly(taskData, path));
}
case 1053: // Get computer name
{
TCHAR name[MAX_COMPUTERNAME_LENGTH +1];
DWORD dwSize = MAX_COMPUTERNAME_LENGTH +1;
if (GetComputerName(name, &dwSize) == 0)
raise_syscall(taskData, "GetComputerName failed", -(int)GetLastError());
return SAVE(C_string_to_Poly(taskData, name));
}
case 1054: // Get user name
{
TCHAR name[UNLEN +1];
DWORD dwSize = UNLEN +1;
if (GetUserName(name, &dwSize) == 0)
raise_syscall(taskData, "GetUserName failed", -(int)GetLastError());
return SAVE(C_string_to_Poly(taskData, name));
}
case 1100: // Get the error result from the last call.
// This is saved when we make a call to a foreign function.
{
return(SAVE(TAGGED(taskData->lastError)));
}
case 1101: // Wait for a message.
{
while (1)
{
HWND hwnd = (HWND)get_C_long(taskData, DEREFWORDHANDLE(args)->Get(0)); /* Handles are treated as SIGNED. */
UINT wMsgFilterMin = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(1));
UINT wMsgFilterMax = get_C_unsigned(taskData, DEREFWORDHANDLE(args)->Get(2));
MSG msg;
processes->ThreadReleaseMLMemory(taskData);
// N.B. PeekMessage may directly call the window proc resulting in a
// callback to ML. For this to work a callback must not overwrite "args".
BOOL result = PeekMessage(&msg, hwnd, wMsgFilterMin, wMsgFilterMax, PM_NOREMOVE);
processes->ThreadUseMLMemory(taskData);
if (result) return Make_arbitrary_precision(taskData, 0);
// Pause until a message arrives.
processes->ThreadPause(taskData);
}
}
// case 1102: // Return the address of the window callback function.
case 1103: // Return the application instance.
return Make_arbitrary_precision(taskData, (POLYUNSIGNED)hApplicationInstance);
case 1104: // Return the main window handle
return Make_arbitrary_precision(taskData, (POLYUNSIGNED)hMainWindow);
// case 1105: // Set the callback function
default:
{
char msg[100];
sprintf(msg, "Unknown windows-specific function: %d", c);
raise_exception_string(taskData, EXC_Fail, msg);
return 0;
}
}
}
Handle timing_dispatch_c(TaskData *taskData, Handle args, Handle code)
{
unsigned c = get_C_unsigned(taskData, DEREFWORDHANDLE(code));
switch (c)
{
case 0: /* Get ticks per microsecond. */
return Make_arbitrary_precision(taskData, TICKS_PER_MICROSECOND);
case 1: /* Return time since the time base. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
FILETIME ft;
GetSystemTimeAsFileTime(&ft);
return Make_arb_from_Filetime(taskData, ft);
#else
struct timeval tv;
if (gettimeofday(&tv, NULL) != 0)
raise_syscall(taskData, "gettimeofday failed", errno);
return Make_arb_from_pair_scaled(taskData, tv.tv_sec, tv.tv_usec, 1000000);
#endif
}
case 2: /* Return the base year. This is the year which corresponds to
zero in the timing sequence. */
#if (defined(_WIN32) && ! defined(__CYGWIN__))
return Make_arbitrary_precision(taskData, 1601);
#else
return Make_arbitrary_precision(taskData, 1970);
#endif
case 3: /* In both Windows and Unix the time base is 1st of January
in the base year. This function is provided just in case
we are running on a system with a different base. It
returns the number of seconds after 1st January of the
base year that corresponds to zero of the time base. */
return Make_arbitrary_precision(taskData, 0);
case 4: /* Return the time offset which applied/will apply at the
specified time (in seconds). */
{
int localoff = 0;
time_t theTime;
int day = 0;
#if (defined(HAVE_GMTIME_R) || defined(HAVE_LOCALTIME_R))
struct tm result;
#endif
#if (defined(_WIN32) && ! defined(__CYGWIN__))
/* Although the offset is in seconds it is since 1601. */
FILETIME ftSeconds; // Not really a file-time because it's a number of seconds.
getFileTimeFromArb(taskData, args, &ftSeconds); /* May raise exception. */
ULARGE_INTEGER liTime;
liTime.HighPart = ftSeconds.dwHighDateTime;
liTime.LowPart = ftSeconds.dwLowDateTime;
theTime = (long)(liTime.QuadPart - SECSSINCE1601);
#else
theTime = get_C_long(taskData, DEREFWORDHANDLE(args)); /* May raise exception. */
#endif
{
#ifdef HAVE_GMTIME_R
struct tm *loctime = gmtime_r(&theTime, &result);
#else
PLocker lock(&timeLock);
struct tm *loctime = gmtime(&theTime);
#endif
if (loctime == NULL) raise_exception0(taskData, EXC_size);
localoff = (loctime->tm_hour*60 + loctime->tm_min)*60 + loctime->tm_sec;
day = loctime->tm_yday;
}
{
#ifdef HAVE_LOCALTIME_R
struct tm *loctime = localtime_r(&theTime, &result);
#else
PLocker lock(&timeLock);
struct tm *loctime = localtime(&theTime);
#endif
if (loctime == NULL) raise_exception0(taskData, EXC_size);
localoff -= (loctime->tm_hour*60 + loctime->tm_min)*60 + loctime->tm_sec;
if (loctime->tm_yday != day)
{
// Different day - have to correct it. We can assume that there
// is at most one day to correct.
if (day == loctime->tm_yday+1 || (day == 0 && loctime->tm_yday >= 364))
localoff += 24*60*60;
else localoff -= 24*60*60;
}
}
return Make_arbitrary_precision(taskData, localoff);
}
case 5: /* Find out if Summer Time (daylight saving) was/will be in effect. */
{
time_t theTime;
#if (defined(_WIN32) && ! defined(__CYGWIN__))
FILETIME ftSeconds; // Not really a file-time because it's a number of seconds.
getFileTimeFromArb(taskData, args, &ftSeconds); /* May raise exception. */
ULARGE_INTEGER liTime;
liTime.HighPart = ftSeconds.dwHighDateTime;
liTime.LowPart = ftSeconds.dwLowDateTime;
theTime = (long)(liTime.QuadPart - SECSSINCE1601);
#else
theTime = get_C_long(taskData, DEREFWORDHANDLE(args)); /* May raise exception. */
#endif
int isDst = 0;
#ifdef HAVE_LOCALTIME_R
struct tm result;
struct tm *loctime = localtime_r(&theTime, &result);
isDst = loctime->tm_isdst;
#else
{
PLocker lock(&timeLock);
struct tm *loctime = localtime(&theTime);
if (loctime == NULL) raise_exception0(taskData, EXC_size);
isDst = loctime->tm_isdst;
}
#endif
return Make_arbitrary_precision(taskData, isDst);
}
case 6: /* Call strftime. It would be possible to do much of this in
ML except that it requires the current locale. */
{
struct tm time;
char *format, buff[2048];
Handle resString;
/* Get the format string. */
format = Poly_string_to_C_alloc(DEREFHANDLE(args)->Get(0));
/* Copy the time information. */
time.tm_year = get_C_int(taskData, DEREFHANDLE(args)->Get(1)) - 1900;
time.tm_mon = get_C_int(taskData, DEREFHANDLE(args)->Get(2));
time.tm_mday = get_C_int(taskData, DEREFHANDLE(args)->Get(3));
time.tm_hour = get_C_int(taskData, DEREFHANDLE(args)->Get(4));
time.tm_min = get_C_int(taskData, DEREFHANDLE(args)->Get(5));
time.tm_sec = get_C_int(taskData, DEREFHANDLE(args)->Get(6));
time.tm_wday = get_C_int(taskData, DEREFHANDLE(args)->Get(7));
time.tm_yday = get_C_int(taskData, DEREFHANDLE(args)->Get(8));
time.tm_isdst = get_C_int(taskData, DEREFHANDLE(args)->Get(9));
#if (defined(_WIN32) && ! defined(__CYGWIN__))
_tzset(); /* Make sure we set the current locale. */
#else
setlocale(LC_TIME, "");
#endif
/* It would be better to dynamically allocate the string rather
than use a fixed size but Unix unlike Windows does not distinguish
between an error in the input and the buffer being too small. */
if (strftime(buff, sizeof(buff), format, &time) <= 0)
{
/* Error */
free(format);
raise_exception0(taskData, EXC_size);
}
resString = taskData->saveVec.push(C_string_to_Poly(taskData, buff));
free(format);
return resString;
}
case 7: /* Return User CPU time since the start. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
FILETIME ut, ct, et, kt;
if (! GetProcessTimes(GetCurrentProcess(), &ct, &et, &kt, &ut))
raise_syscall(taskData, "GetProcessTimes failed", 0-GetLastError());
return Make_arb_from_Filetime(taskData, ut);
#else
struct rusage rusage;
if (getrusage(RUSAGE_SELF, &rusage) != 0)
raise_syscall(taskData, "getrusage failed", errno);
return Make_arb_from_pair_scaled(taskData, rusage.ru_utime.tv_sec,
rusage.ru_utime.tv_usec, 1000000);
#endif
}
case 8: /* Return System CPU time since the start. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
FILETIME ct, et, kt, ut;
if (! GetProcessTimes(GetCurrentProcess(), &ct, &et, &kt, &ut))
raise_syscall(taskData, "GetProcessTimes failed", 0-GetLastError());
return Make_arb_from_Filetime(taskData, kt);
#else
struct rusage rusage;
if (getrusage(RUSAGE_SELF, &rusage) != 0)
raise_syscall(taskData, "getrusage failed", errno);
return Make_arb_from_pair_scaled(taskData, rusage.ru_stime.tv_sec,
rusage.ru_stime.tv_usec, 1000000);
#endif
}
case 9: /* Return GC time since the start. */
return gHeapSizeParameters.getGCUtime(taskData);
case 10: /* Return real time since the start. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
FILETIME ft;
GetSystemTimeAsFileTime(&ft);
subFiletimes(&ft, &startTime);
return Make_arb_from_Filetime(taskData, ft);
#else
struct timeval tv;
if (gettimeofday(&tv, NULL) != 0)
raise_syscall(taskData, "gettimeofday failed", errno);
subTimevals(&tv, &startTime);
return Make_arb_from_pair_scaled(taskData, tv.tv_sec, tv.tv_usec, 1000000);
#endif
}
/* These next two are used only in the Posix structure. */
case 11: /* Return User CPU time used by child processes. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
return Make_arbitrary_precision(taskData, 0);
#else
struct rusage rusage;
if (getrusage(RUSAGE_CHILDREN, &rusage) != 0)
raise_syscall(taskData, "getrusage failed", errno);
return Make_arb_from_pair_scaled(taskData, rusage.ru_utime.tv_sec,
rusage.ru_utime.tv_usec, 1000000);
#endif
}
case 12: /* Return System CPU time used by child processes. */
{
#if (defined(_WIN32) && ! defined(__CYGWIN__))
return Make_arbitrary_precision(taskData, 0);
#else
struct rusage rusage;
if (getrusage(RUSAGE_CHILDREN, &rusage) != 0)
raise_syscall(taskData, "getrusage failed", errno);
return Make_arb_from_pair_scaled(taskData, rusage.ru_stime.tv_sec,
rusage.ru_stime.tv_usec, 1000000);
#endif
}
case 13: /* Return GC system time since the start. */
return gHeapSizeParameters.getGCStime(taskData);
default:
{
char msg[100];
sprintf(msg, "Unknown timing function: %d", c);
raise_exception_string(taskData, EXC_Fail, msg);
return 0;
}
}
}