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| author | jhb <jhb@FreeBSD.org> | 2001-05-15 23:19:52 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-05-15 23:19:52 +0000 |
| commit | 85db2f279b583b8aa9141ad2b99df4c36efff71d (patch) | |
| tree | cea8a973c6be14dd4c81fe1a249098e41d009c2f | |
| parent | 20e19e3f79cdb8fb7ecf94197703a46d18e78015 (diff) | |
| download | FreeBSD-src-85db2f279b583b8aa9141ad2b99df4c36efff71d.zip FreeBSD-src-85db2f279b583b8aa9141ad2b99df4c36efff71d.tar.gz | |
Add a PROC_TRYLOCK() macro to perform a mtx_trylock() on the process lock.
| -rw-r--r-- | sys/sys/proc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/sys/proc.h b/sys/sys/proc.h index 2d2f1f8..d953b1d 100644 --- a/sys/sys/proc.h +++ b/sys/sys/proc.h @@ -447,6 +447,7 @@ sigonstack(size_t sp) /* Lock and unlock a process. */ #define PROC_LOCK(p) mtx_lock(&(p)->p_mtx) +#define PROC_TRYLOCK(p) mtx_trylock(&(p)->p_mtx) #define PROC_UNLOCK(p) mtx_unlock(&(p)->p_mtx) #define PROC_UNLOCK_NOSWITCH(p) \ mtx_unlock_flags(&(p)->p_mtx, MTX_NOSWITCH) |
