diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/system/refs_v2.nim | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/system/refs_v2.nim b/lib/system/refs_v2.nim index 5ac0f0b8e..f6f3ba01c 100644 --- a/lib/system/refs_v2.nim +++ b/lib/system/refs_v2.nim @@ -72,6 +72,23 @@ proc nimNewObj(size: int): pointer {.compilerRtl.} = when traceCollector: cprintf("[Allocated] %p\n", result -! sizeof(RefHeader)) +proc nimNewObjUninit(size: int): pointer {.compilerRtl.} = + # Same as 'newNewObj' but do not initialize the memory to zero. + # The codegen proved for us that this is not necessary. + let s = size + sizeof(RefHeader) + when defined(nimscript): + discard + elif defined(useMalloc): + var orig = cast[ptr RefHeader](c_malloc(cuint s)) + elif compileOption("threads"): + var orig = cast[ptr RefHeader](allocShared(s)) + else: + var orig = cast[ptr RefHeader](alloc(s)) + orig.rc = 0 + result = orig +! sizeof(RefHeader) + when traceCollector: + cprintf("[Allocated] %p\n", result -! sizeof(RefHeader)) + proc nimDecWeakRef(p: pointer) {.compilerRtl, inl.} = dec head(p).rc, rcIncrement |