diff options
Diffstat (limited to 'vendor/modernc.org/libc/libc_windows.go')
| -rw-r--r-- | vendor/modernc.org/libc/libc_windows.go | 238 |
1 files changed, 202 insertions, 36 deletions
diff --git a/vendor/modernc.org/libc/libc_windows.go b/vendor/modernc.org/libc/libc_windows.go index 79bd88fc1..3409f3331 100644 --- a/vendor/modernc.org/libc/libc_windows.go +++ b/vendor/modernc.org/libc/libc_windows.go @@ -9,6 +9,7 @@ import ( "fmt" "golang.org/x/sys/windows" "math" + mbits "math/bits" "os" "os/exec" "os/user" @@ -42,6 +43,8 @@ var X_iob [stdio.X_IOB_ENTRIES]stdio.FILE var Xin6addr_any [16]byte var Xtimezone long // extern long timezone; +type Tsize_t = types.Size_t + var ( iobMap = map[uintptr]int32{} // &_iob[fd] -> fd wenvValid bool @@ -845,25 +848,49 @@ func Xmunmap(t *TLS, addr uintptr, length types.Size_t) int32 { // return 0 } +type Timeval = struct { + Ftv_sec int32 + Ftv_usec int32 +} + // int gettimeofday(struct timeval *tv, struct timezone *tz); func Xgettimeofday(t *TLS, tv, tz uintptr) int32 { if __ccgo_strace { trc("t=%v tz=%v, (%v:)", t, tz, origin(2)) } - panic(todo("")) - // if tz != 0 { - // panic(todo("")) - // } - - // var tvs unix.Timeval - // err := unix.Gettimeofday(&tvs) - // if err != nil { - // t.setErrno(err) - // return -1 - // } + if tv == 0 { + return 0 + } - // *(*unix.Timeval)(unsafe.Pointer(tv)) = tvs + // This seems to work as well + // var u64 uint64 + // procGetSystemTimeAsFileTime.Call(uintptr(unsafe.Pointer(&u64)), 0, 0) + // u64 /= 10 + // u64 -= 11644473600000000 + // (*Timeval)(unsafe.Pointer(tv)).Ftv_sec = int32(u64/1e6) + // (*Timeval)(unsafe.Pointer(tv)).Ftv_usec = int32(u64%1e6) // return 0 + + // But let's use the golang.org/x/sys version + windows.Gettimeofday((*windows.Timeval)(unsafe.Pointer(tv))) + return 0 +} + +type Timespec = struct { + Ftv_sec time.Time_t + Ftv_nsec int32 +} + +// int clock_gettime(clockid_t clk_id, struct timespec *tp); +func Xclock_gettime(t *TLS, clk_id int32, tp uintptr) int32 { + if __ccgo_strace { + trc("t=%v clk_id=%v tp=%v, (%v:)", t, clk_id, tp, origin(2)) + } + var u64 uint64 // [100ns] + procGetSystemTimeAsFileTime.Call(uintptr(unsafe.Pointer(&u64)), 0, 0) + (*Timespec)(unsafe.Pointer(tp)).Ftv_sec = time.Time_t((u64/10 - 11644473600000000) / 1e6) + (*Timespec)(unsafe.Pointer(tp)).Ftv_nsec = int32((u64 * 100) % 1e9) + return 0 } // int getsockopt(int sockfd, int level, int optname, void *optval, socklen_t *optlen); @@ -1770,14 +1797,6 @@ func Xrealpath(t *TLS, path, resolved_path uintptr) uintptr { return resolved_path } -// struct tm *gmtime_r(const time_t *timep, struct tm *result); -func Xgmtime_r(t *TLS, timep, result uintptr) uintptr { - if __ccgo_strace { - trc("t=%v result=%v, (%v:)", t, result, origin(2)) - } - panic(todo("")) -} - // // char *inet_ntoa(struct in_addr in); // func Xinet_ntoa(t *TLS, in1 in.In_addr) uintptr { // panic(todo("")) @@ -7108,22 +7127,49 @@ func Xsscanf(t *TLS, str, format, va uintptr) int32 { return r } +var _toint4 = Float64FromInt32(1) / Float64FromFloat64(2.220446049250313e-16) + func Xrint(tls *TLS, x float64) float64 { if __ccgo_strace { trc("tls=%v x=%v, (%v:)", tls, x, origin(2)) } - switch { - case x == 0: // also +0 and -0 - return 0 - case math.IsInf(x, 0), math.IsNaN(x): - return x - case x >= math.MinInt64 && x <= math.MaxInt64 && float64(int64(x)) == x: + bp := tls.Alloc(16) + defer tls.Free(16) + var e, s int32 + var y Tdouble_t + var v1 float64 + var _ /* u at bp+0 */ struct { + Fi [0]Tuint64_t + Ff float64 + } + _, _, _, _ = e, s, y, v1 + *(*struct { + Fi [0]Tuint64_t + Ff float64 + })(unsafe.Pointer(bp)) = struct { + Fi [0]Tuint64_t + Ff float64 + }{} + *(*float64)(unsafe.Pointer(bp)) = x + e = Int32FromUint64(*(*Tuint64_t)(unsafe.Pointer(bp)) >> int32(52) & uint64(0x7ff)) + s = Int32FromUint64(*(*Tuint64_t)(unsafe.Pointer(bp)) >> int32(63)) + if e >= Int32FromInt32(0x3ff)+Int32FromInt32(52) { return x - case x >= 0: - return math.Floor(x + 0.5) - default: - return math.Ceil(x - 0.5) } + if s != 0 { + y = x - _toint4 + _toint4 + } else { + y = x + _toint4 - _toint4 + } + if y == Float64FromInt32(0) { + if s != 0 { + v1 = -Float64FromFloat64(0) + } else { + v1 = Float64FromInt32(0) + } + return v1 + } + return y } // FILE *fdopen(int fd, const char *mode); @@ -7471,15 +7517,131 @@ func AtomicLoadNUint8(ptr uintptr, memorder int32) uint8 { } // struct tm *gmtime( const time_t *sourceTime ); -func Xgmtime(t *TLS, sourceTime uintptr) uintptr { +// func Xgmtime(t *TLS, sourceTime uintptr) uintptr { +// if __ccgo_strace { +// trc("t=%v sourceTime=%v, (%v:)", t, sourceTime, origin(2)) +// } +// r0, _, err := procGmtime.Call(uintptr(sourceTime)) +// if err != windows.NOERROR { +// t.setErrno(err) +// } +// return uintptr(r0) +// } + +var _tm time.Tm + +// /tmp/libc/musl-master/src/time/gmtime.c:4:11: +func Xgmtime(tls *TLS, t uintptr) (r uintptr) { // /tmp/libc/musl-master/src/time/gmtime.c:7:2: if __ccgo_strace { - trc("t=%v sourceTime=%v, (%v:)", t, sourceTime, origin(2)) + trc("tls=%v t=%v, (%v:)", tls, t, origin(2)) + defer func() { trc("-> %v", r) }() } - r0, _, err := procGmtime.Call(uintptr(sourceTime)) - if err != windows.NOERROR { - t.setErrno(err) + r = Xgmtime_r(tls, t, uintptr(unsafe.Pointer(&_tm))) + return r +} + +var _days_in_month = [12]int8{ + 0: int8(31), + 1: int8(30), + 2: int8(31), + 3: int8(30), + 4: int8(31), + 5: int8(31), + 6: int8(30), + 7: int8(31), + 8: int8(30), + 9: int8(31), + 10: int8(31), + 11: int8(29), +} + +var x___utc = [4]int8{'U', 'T', 'C'} + +func Xgmtime_r(tls *TLS, t uintptr, tm uintptr) (r uintptr) { + if __ccgo_strace { + trc("tls=%v t=%v tm=%v, (%v:)", tls, t, tm, origin(2)) + defer func() { trc("-> %v", r) }() } - return uintptr(r0) + if x___secs_to_tm(tls, int64(*(*time.Time_t)(unsafe.Pointer(t))), tm) < 0 { + *(*int32)(unsafe.Pointer(X__errno_location(tls))) = int32(errno.EOVERFLOW) + return uintptr(0) + } + (*time.Tm)(unsafe.Pointer(tm)).Ftm_isdst = 0 + return tm +} + +func x___secs_to_tm(tls *TLS, t int64, tm uintptr) (r int32) { + var c_cycles, leap, months, q_cycles, qc_cycles, remdays, remsecs, remyears, wday, yday int32 + var days, secs, years int64 + _, _, _, _, _, _, _, _, _, _, _, _, _ = c_cycles, days, leap, months, q_cycles, qc_cycles, remdays, remsecs, remyears, secs, wday, yday, years + /* Reject time_t values whose year would overflow int */ + if t < int64(-Int32FromInt32(1)-Int32FromInt32(0x7fffffff))*Int64FromInt64(31622400) || t > Int64FromInt32(limits.INT_MAX)*Int64FromInt64(31622400) { + return -int32(1) + } + secs = t - (Int64FromInt64(946684800) + int64(Int32FromInt32(86400)*(Int32FromInt32(31)+Int32FromInt32(29)))) + days = secs / int64(86400) + remsecs = int32(secs % int64(86400)) + if remsecs < 0 { + remsecs += int32(86400) + days-- + } + wday = int32((int64(3) + days) % int64(7)) + if wday < 0 { + wday += int32(7) + } + qc_cycles = int32(days / int64(Int32FromInt32(365)*Int32FromInt32(400)+Int32FromInt32(97))) + remdays = int32(days % int64(Int32FromInt32(365)*Int32FromInt32(400)+Int32FromInt32(97))) + if remdays < 0 { + remdays += Int32FromInt32(365)*Int32FromInt32(400) + Int32FromInt32(97) + qc_cycles-- + } + c_cycles = remdays / (Int32FromInt32(365)*Int32FromInt32(100) + Int32FromInt32(24)) + if c_cycles == int32(4) { + c_cycles-- + } + remdays -= c_cycles * (Int32FromInt32(365)*Int32FromInt32(100) + Int32FromInt32(24)) + q_cycles = remdays / (Int32FromInt32(365)*Int32FromInt32(4) + Int32FromInt32(1)) + if q_cycles == int32(25) { + q_cycles-- + } + remdays -= q_cycles * (Int32FromInt32(365)*Int32FromInt32(4) + Int32FromInt32(1)) + remyears = remdays / int32(365) + if remyears == int32(4) { + remyears-- + } + remdays -= remyears * int32(365) + leap = BoolInt32(!(remyears != 0) && (q_cycles != 0 || !(c_cycles != 0))) + yday = remdays + int32(31) + int32(28) + leap + if yday >= int32(365)+leap { + yday -= int32(365) + leap + } + years = int64(remyears+int32(4)*q_cycles+int32(100)*c_cycles) + int64(400)*int64(int64(qc_cycles)) + months = 0 + for { + if !(int32(_days_in_month[months]) <= remdays) { + break + } + remdays -= int32(_days_in_month[months]) + goto _1 + _1: + months++ + } + if months >= int32(10) { + months -= int32(12) + years++ + } + if years+int64(100) > int64(limits.INT_MAX) || years+int64(100) < int64(-Int32FromInt32(1)-Int32FromInt32(0x7fffffff)) { + return -int32(1) + } + (*time.Tm)(unsafe.Pointer(tm)).Ftm_year = int32(years + int64(100)) + (*time.Tm)(unsafe.Pointer(tm)).Ftm_mon = months + int32(2) + (*time.Tm)(unsafe.Pointer(tm)).Ftm_mday = remdays + int32(1) + (*time.Tm)(unsafe.Pointer(tm)).Ftm_wday = wday + (*time.Tm)(unsafe.Pointer(tm)).Ftm_yday = yday + (*time.Tm)(unsafe.Pointer(tm)).Ftm_hour = remsecs / int32(3600) + (*time.Tm)(unsafe.Pointer(tm)).Ftm_min = remsecs / int32(60) % int32(60) + (*time.Tm)(unsafe.Pointer(tm)).Ftm_sec = remsecs % int32(60) + return 0 } // size_t strftime( @@ -7609,3 +7771,7 @@ func X_strnicmp(tls *TLS, __Str1 uintptr, __Str2 uintptr, __MaxCount types.Size_ } return int32(r0) } + +func X__builtin_ctz(t *TLS, n uint32) int32 { + return int32(mbits.TrailingZeros32(n)) +} |