Merge pull request #3787 from danielschemmel/futex-constants

Add Futex Constants FUTEX_WAITERS, FUTEX_OWNER_DIED and FUTEX_TID_MASK to Linux
rust-lang · Aug 12, 2024 · ee9fc6e · ee9fc6e
2 parents 5020c76 + 8c5c7ce
commit ee9fc6e
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diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
@@ -837,13 +837,16 @@ FUTEX_OP_OPARG_SHIFT
 FUTEX_OP_OR
 FUTEX_OP_SET
 FUTEX_OP_XOR
+FUTEX_OWNER_DIED
 FUTEX_PRIVATE_FLAG
 FUTEX_REQUEUE
+FUTEX_TID_MASK
 FUTEX_TRYLOCK_PI
 FUTEX_UNLOCK_PI
 FUTEX_WAIT
 FUTEX_WAIT_BITSET
 FUTEX_WAIT_REQUEUE_PI
+FUTEX_WAITERS
 FUTEX_WAKE
 FUTEX_WAKE_BITSET
 FUTEX_WAKE_OP

diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
@@ -4607,6 +4607,7 @@ pub const FAN_NOFD: ::c_int = -1;
 pub const FAN_NOPIDFD: ::c_int = FAN_NOFD;
 pub const FAN_EPIDFD: ::c_int = -2;
 
+// linux/futex.h
 pub const FUTEX_WAIT: ::c_int = 0;
 pub const FUTEX_WAKE: ::c_int = 1;
 pub const FUTEX_FD: ::c_int = 2;
@@ -4626,6 +4627,10 @@ pub const FUTEX_PRIVATE_FLAG: ::c_int = 128;
 pub const FUTEX_CLOCK_REALTIME: ::c_int = 256;
 pub const FUTEX_CMD_MASK: ::c_int = !(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME);
 
+pub const FUTEX_WAITERS: u32 = 0x80000000;
+pub const FUTEX_OWNER_DIED: u32 = 0x40000000;
+pub const FUTEX_TID_MASK: u32 = 0x3fffffff;
+
 pub const FUTEX_BITSET_MATCH_ANY: ::c_int = 0xffffffff;
 
 pub const FUTEX_OP_SET: ::c_int = 0;