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| author | Julian Elischer <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
|---|---|---|
| committer | Julian Elischer <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
| commit | f70177e76e605ec6e6cd5b938fa77ade5d380e87 (patch) | |
| tree | a89c7f50ec371cef4418259b9dccdd31ebb2f61f /lib/libc/sys/getsockname.2 | |
| parent | 61de51cad66df0d565233915f856932159d33a4a (diff) | |
| download | src-f70177e76e605ec6e6cd5b938fa77ade5d380e87.tar.gz src-f70177e76e605ec6e6cd5b938fa77ade5d380e87.zip | |
Reviewed by: julian and (hsu?)
Submitted by: John Birrel(L?)
changes for threadsafe operations
Notes
Notes:
svn path=/head/; revision=13545
Diffstat (limited to 'lib/libc/sys/getsockname.2')
| -rw-r--r-- | lib/libc/sys/getsockname.2 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/libc/sys/getsockname.2 b/lib/libc/sys/getsockname.2 index d56e40486646..e053b4768e7b 100644 --- a/lib/libc/sys/getsockname.2 +++ b/lib/libc/sys/getsockname.2 @@ -51,6 +51,28 @@ the amount of space pointed to by .Fa name . On return it contains the actual size of the name returned (in bytes). +.Sh IMPLEMENTATION NOTES +.Pp +In the non-threaded library +.Fn getsockname +is implemented as the +.Va getsockname +syscall. +.Pp +In the threaded library, the +.Va getsockname +syscall is assembled to +.Fn _thread_sys_getsockname +and +.Fn getsockname +is implemented as a function which locks +.Va fd +for read and write, then calls +.Fn _thread_sys_getsockname . +Before returning, +.Fn getsockname +unlocks +.Va fd . .Sh DIAGNOSTICS A 0 is returned if the call succeeds, -1 if it fails. .Sh ERRORS |