FUTEX_WAIT 1762 sandbox/linux/seccomp-bpf/sandbox_bpf_unittest.cc while (SandboxSyscall(__NR_futex, &thread_ran, FUTEX_WAIT, 0, 0, 0, 0) == FUTEX_WAIT 96 third_party/tcmalloc/chromium/src/base/spinlock_linux-inl.h FUTEX_WAIT | futex_private_flag, FUTEX_WAIT 86 third_party/tcmalloc/vendor/src/base/spinlock_linux-inl.h FUTEX_WAIT | futex_private_flag,