diff options
Diffstat (limited to 'jim_tcl.txt')
| -rw-r--r-- | jim_tcl.txt | 47 |
1 files changed, 36 insertions, 11 deletions
diff --git a/jim_tcl.txt b/jim_tcl.txt index 1b719a8..d2640f8 100644 --- a/jim_tcl.txt +++ b/jim_tcl.txt @@ -74,6 +74,7 @@ Since v0.62: 11. Add 'socket pipe' 12. Enhance 'try ... on ... finally' to be more Tcl 8.6 compatible 13. It is now possible to 'return' from within 'try' +14. IPv6 support is now included Since v0.61: @@ -3959,7 +3960,7 @@ aio Receives a message from the handle via recvfrom(2) and returns it. At most *maxlen* bytes are read. If *addrvar* is specified, the sending address of the message is stored in - the named variable in the form 'hostname:port'. + the named variable in the form 'addr:port'. See 'socket' for details. eventloop: after, vwait ~~~~~~~~~~~~~~~~~~~~~~~ @@ -3978,15 +3979,27 @@ The following commands allow a script to be invoked when the given condition occ Time-based execution is also available via the eventloop API. +*after* 'time script'+:: - The script is executed after the given number of milliseconds have elapsed. - Returns an event id. + The script is executed after the given number of milliseconds have elapsed. + Returns an event id. +*after cancel* 'id'+:: - Cancels an after event with the given event id. + Cancels an after event with the given event id. +*vwait* 'variable'+:: - A call to vwait is required to enter the eventloop. 'vwait' processes events until - the named variabled changes. The variable need not exist beforehand. + A call to vwait is required to enter the eventloop. 'vwait' processes events until + the named (global) variable changes. The variable need not exist beforehand. + If there are no event handlers defined, 'vwait' returns immediately. + +Scripts are executed at the global scope. If an error occurs during a handler script, +an attempt is made to call (the user-defined command) 'bgerror' with the details of the error. +If the 'bgerror' commands does not exist, it is printed to stderr instead. + +If a file event handler script generates an error, the handler is automatically removed +to prevent infinite errors. (A time event handler is always removed after execution). + ++*bgerror* 'error'+:: + Called when an event handler script generates an error. + socket ~~~~~~ @@ -3998,18 +4011,18 @@ Various socket types may be created. +*socket unix.server* 'path'+:: A unix domain socket server. -+*socket stream* 'hostname:port'+:: ++*socket ?-ipv6? stream* 'addr:port'+:: A TCP socket client. -+*socket stream.server* '?hostname:?port'+:: - A TCP socket server (*hostname* defaults to 0.0.0.0). ++*socket ?-ipv6? stream.server '?addr:?port'+:: + A TCP socket server (*addr* defaults to 0.0.0.0 for IPv4 or [::] for IPv6). -+*socket dgram* ?'hostname:port'?+:: ++*socket ?-ipv6? dgram* ?'addr:port'?+:: A UDP socket client. If the address is not specified, the client socket will be unbound and 'sendto' must be used to indicated the destination. -+*socket dgram.server* 'hostname:port'+:: ++*socket ?-ipv6? dgram.server* 'addr:port'+:: A UDP socket server. +*socket pipe*+:: @@ -4042,6 +4055,18 @@ the EVENTLOOP API. } vwait done +The address, *addr*, can be given in one of the following forms: + +1. For IPv4 socket types, an IPv4 address such as 192.168.1.1 +2. For IPv6 socket types, an IPv6 address such as [fe80::1234] or [::] +3. A hostname + +Note that on many systems, listening on an IPv6 address such as [::] will +also accept requests via IPv4. + +Where a hostname is specified, the *first* returned address is used +which matches the socket type is used. + The special type 'pipe' isn't really a socket. lassign [socket pipe] r w |