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| author | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
| commit | 619b731f5bb5e09dcf1eaf1fbd96383ca64398fd (patch) | |
| tree | a89c7f50ec371cef4418259b9dccdd31ebb2f61f /lib/libc/sys/connect.2 | |
| parent | 663b14fb2f3198fb0bfb62ae16b6b56c2a4dd055 (diff) | |
| download | FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.zip FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.tar.gz | |
Reviewed by: julian and (hsu?)
Submitted by: John Birrel(L?)
changes for threadsafe operations
Diffstat (limited to 'lib/libc/sys/connect.2')
| -rw-r--r-- | lib/libc/sys/connect.2 | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/lib/libc/sys/connect.2 b/lib/libc/sys/connect.2 index eb38ab3..a6d7c71 100644 --- a/lib/libc/sys/connect.2 +++ b/lib/libc/sys/connect.2 @@ -68,6 +68,30 @@ only once; datagram sockets may use multiple times to change their association. Datagram sockets may dissolve the association by connecting to an invalid address, such as a null address. +.Sh IMPLEMENTATION NOTES +.Pp +In the non-threaded library +.Fn connect +is implemented as the +.Va connect +syscall. +.Pp +In the threaded library, the +.Va connect +syscall is assembled to +.Fn _thread_sys_connect +and +.Fn connect +is implemented as a function which locks +.Va s +for read and write, then calls +.Fn _thread_sys_connect . +If the call to +.Fn _thread_sys_connect +would block, a context switch is performed. Before returning, +.Fn connect +unlocks +.Va s . .Sh RETURN VALUES If the connection or binding succeeds, 0 is returned. Otherwise a -1 is returned, and a more specific error @@ -79,10 +103,10 @@ The call fails if: .Bl -tag -width EADDRNOTAVAILABB .It Bq Er EBADF -.Fa S +.Fa s is not a valid descriptor. .It Bq Er ENOTSOCK -.Fa S +.Fa s is a descriptor for a file, not a socket. .It Bq Er EADDRNOTAVAIL The specified address is not available on this machine. |
