| #include "textflag.h" | |
| #define preparingG 1 | |
| // See commit_noasm.go for a description of commitSleep. | |
| // | |
| // func commitSleep(g uintptr, waitingG *uintptr) bool | |
| TEXT ·commitSleep(SB),NOSPLIT,$0-24 | |
| MOVQ waitingG+8(FP), CX | |
| MOVQ g+0(FP), DX | |
| // Store the G in waitingG if it's still preparingG. If it's anything | |
| // else it means a waker has aborted the sleep. | |
| MOVQ $preparingG, AX | |
| LOCK | |
| CMPXCHGQ DX, 0(CX) | |
| SETEQ AX | |
| MOVB AX, ret+16(FP) | |
| RET |