31e0662856
This specifically fixes unix alloc(): previously when allocation fails it would (recursively) call alloc() again to create an interface due to lacking escape analysis. Also, all other cases shouldn't try to allocate just because something bad happens at runtime. TODO: implement escape analysis.
70 строки
1,2 КиБ
Go
70 строки
1,2 КиБ
Go
// +build linux
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package runtime
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import (
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"unsafe"
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)
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const Microsecond = 1
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func _Cfunc_putchar(c int) int
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func _Cfunc_usleep(usec uint) int
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func _Cfunc_calloc(nmemb, size uintptr) unsafe.Pointer
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func _Cfunc_exit(status int)
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func _Cfunc_clock_gettime(clk_id uint, ts *timespec)
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// TODO: Linux/amd64-specific
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type timespec struct {
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tv_sec int64
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tv_nsec int64
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}
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const CLOCK_MONOTONIC_RAW = 4
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func putchar(c byte) {
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_Cfunc_putchar(int(c))
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}
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func sleep(d Duration) {
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_Cfunc_usleep(uint(d))
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}
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// Return monotonic time in microseconds.
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//
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// TODO: use nanoseconds?
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// TODO: noescape
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func monotime() uint64 {
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ts := timespec{}
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_Cfunc_clock_gettime(CLOCK_MONOTONIC_RAW, &ts)
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return uint64(ts.tv_sec)*1000*1000 + uint64(ts.tv_nsec)/1000
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}
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func abort() {
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// panic() exits with exit code 2.
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_Cfunc_exit(2)
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}
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func alloc(size uintptr) unsafe.Pointer {
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buf := _Cfunc_calloc(1, size)
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if buf == nil {
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runtimePanic("cannot allocate memory")
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}
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return buf
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}
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func free(ptr unsafe.Pointer) {
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//C.free(ptr) // TODO
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}
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func GC() {
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// Unimplemented.
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}
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func KeepAlive(x interface{}) {
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// Unimplemented. Only required with SetFinalizer().
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}
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func SetFinalizer(obj interface{}, finalizer interface{}) {
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// Unimplemented.
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}
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