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| author | pjd <pjd@FreeBSD.org> | 2006-07-12 15:40:35 +0000 |
|---|---|---|
| committer | pjd <pjd@FreeBSD.org> | 2006-07-12 15:40:35 +0000 |
| commit | 07ad858feec96a88c5137685ef6bd05081c7fcbd (patch) | |
| tree | 4d6feba235a59ac5603a7b6c2d44fd22c3e78a0c /share/man/man9/sx.9 | |
| parent | 4b477bd640a0cde8210c22a8af1aa5120eb0f21a (diff) | |
| download | FreeBSD-src-07ad858feec96a88c5137685ef6bd05081c7fcbd.zip FreeBSD-src-07ad858feec96a88c5137685ef6bd05081c7fcbd.tar.gz | |
Document sx_xlocked(9).
Submitted by: ssouhlal
Diffstat (limited to 'share/man/man9/sx.9')
| -rw-r--r-- | share/man/man9/sx.9 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/share/man/man9/sx.9 b/share/man/man9/sx.9 index d89c186..5a60fd1 100644 --- a/share/man/man9/sx.9 +++ b/share/man/man9/sx.9 @@ -43,6 +43,7 @@ .Nm sx_downgrade , .Nm sx_assert , .Nm sx_unlock , +.Nm sx_xlocked , .Nm SX_SYSINIT .Nd kernel shared/exclusive lock .Sh SYNOPSIS @@ -71,6 +72,8 @@ .Fn sx_downgrade "struct sx *sx" .Ft void .Fn sx_assert "struct sx *sx" "int what" +.Ft int +.Fn sx_xlocked "struct sx *sx" .\" .Ss Nm Ss utility macros .Fn sx_unlock "struct sx *sx" @@ -166,6 +169,10 @@ lock pointed to by the first argument. .El .Pp +.Fn sx_xlocked +will return non-zero if the current process holds the exclusive lock; +otherwise, it will return zero. +.Pp For ease of programming, .Fn sx_unlock is provided as a macro frontend to the respective functions, |
