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lang: um, actually set locking bits! this code got lost.

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This commit is contained in:
Niko Matsakis 2013-05-03 15:12:04 -04:00
parent e7d96934c1
commit f3a6ea2643
1 changed files with 11 additions and 1 deletions
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12
src/libcore/unstable/lang.rs
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@ -235,6 +235,8 @@ pub unsafe fn borrow_as_imm(a: *u8, file: *c_char, line: size_t) -> uint {
fail_borrowed(a, file, line);
}
(*a).header.ref_count = ref_count | FROZEN_BIT;
ref_count
}
@ -251,6 +253,9 @@ pub unsafe fn borrow_as_mut(a: *u8, file: *c_char, line: size_t) -> uint {
if (ref_count & (MUT_BIT|FROZEN_BIT)) != 0 {
fail_borrowed(a, file, line);
}
(*a).header.ref_count = ref_count | MUT_BIT | FROZEN_BIT;
ref_count
}
@ -349,7 +354,12 @@ pub unsafe fn check_not_borrowed(a: *u8,
file: *c_char,
line: size_t) {
let a: *mut BoxRepr = transmute(a);
if ((*a).header.ref_count & FROZEN_BIT) != 0 {
let ref_count = (*a).header.ref_count;
debug_ptr("check_not_borrowed (ptr) : ", a);
debug_ptr(" (line): ", line as *());
debug_ptr(" (rc) : ", ref_count as *());
if (ref_count & FROZEN_BIT) != 0 {
fail_borrowed(a, file, line);
}
}