Remove leftover comm.rs in std

(The actual comm module lives in core.)

2 files changed, 1 insertions, 188 deletions

diff --git a/src/libstd/comm.rs b/src/libstd/comm.rs
deleted file mode 100644
index 86aeed3826c..00000000000
--- a/src/libstd/comm.rs
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
-Module: comm
-
-Communication between tasks
-
-Communication between tasks is facilitated by ports (in the receiving task),
-and channels (in the sending task). Any number of channels may feed into a
-single port.
-
-Ports and channels may only transmit values of unique types; that is,
-values that are statically guaranteed to be accessed by a single
-'owner' at a time.  Unique types include scalars, vectors, strings,
-and records, tags, tuples and unique boxes (~T) thereof. Most notably,
-shared boxes (@T) may not be transmitted across channels.
-
-Example:
-
-> use std::{task, comm, io};
->
-> let p = comm::port();
-> task::spawn(comm::chan(p), fn (c: chan<str>) {
->   comm::send(c, "Hello, World");
-> });
->
-> io::println(comm::recv(p));
-
-*/
-
-import sys;
-import task;
-
-import core::ctypes;
-
-export send;
-export recv;
-export chan;
-export port;
-
-#[abi = "cdecl"]
-native mod rustrt {
-    type void;
-    type rust_port;
-
-    fn chan_id_send<T: send>(t: *sys::type_desc,
-                            target_task: task::task, target_port: port_id,
-                            data: T) -> ctypes::uintptr_t;
-
-    fn new_port(unit_sz: uint) -> *rust_port;
-    fn del_port(po: *rust_port);
-    fn rust_port_detach(po: *rust_port);
-    fn get_port_id(po: *rust_port) -> port_id;
-    fn rust_port_size(po: *rust_port) -> ctypes::size_t;
-    fn port_recv(dptr: *uint, po: *rust_port,
-                 yield: *ctypes::uintptr_t,
-                 killed: *ctypes::uintptr_t);
-}
-
-#[abi = "rust-intrinsic"]
-native mod rusti {
-    fn call_with_retptr<T: send>(&&f: fn@(*uint)) -> T;
-}
-
-type port_id = int;
-
-// It's critical that this only have one variant, so it has a record
-// layout, and will work in the rust_task structure in task.rs.
-/*
-Type: chan
-
-A communication endpoint that can send messages. Channels send
-messages to ports.
-
-Each channel is bound to a port when the channel is constructed, so
-the destination port for a channel must exist before the channel
-itself.
-
-Channels are weak: a channel does not keep the port it is bound to alive.
-If a channel attempts to send data to a dead port that data will be silently
-dropped.
-
-Channels may be duplicated and themselves transmitted over other channels.
-*/
-tag chan<T: send> {
-    chan_t(task::task, port_id);
-}
-
-resource port_ptr<T: send>(po: *rustrt::rust_port) {
-    // Once the port is detached it's guaranteed not to receive further
-    // messages
-    rustrt::rust_port_detach(po);
-    // Drain the port so that all the still-enqueued items get dropped
-    while rustrt::rust_port_size(po) > 0u {
-        // FIXME: For some reason if we don't assign to something here
-        // we end up with invalid reads in the drop glue.
-        let _t = recv_::<T>(po);
-    }
-    rustrt::del_port(po);
-}
-
-/*
-Type: port
-
-A communication endpoint that can receive messages. Ports receive
-messages from channels.
-
-Each port has a unique per-task identity and may not be replicated or
-transmitted. If a port value is copied, both copies refer to the same port.
-
-Ports may be associated with multiple <chan>s.
-*/
-tag port<T: send> { port_t(@port_ptr<T>); }
-
-/*
-Function: send
-
-Sends data over a channel.
-
-The sent data is moved into the channel, whereupon the caller loses access
-to it.
-*/
-fn send<T: send>(ch: chan<T>, -data: T) {
-    let chan_t(t, p) = ch;
-    let res = rustrt::chan_id_send(sys::get_type_desc::<T>(), t, p, data);
-    if res != 0u unsafe {
-        // Data sent successfully
-        unsafe::leak(data);
-    }
-    task::yield();
-}
-
-/*
-Function: port
-
-Constructs a port.
-*/
-fn port<T: send>() -> port<T> {
-    port_t(@port_ptr(rustrt::new_port(sys::size_of::<T>())))
-}
-
-/*
-Function: recv
-
-Receive from a port.
-
-If no data is available on the port then the task will block until data
-becomes available.
-*/
-fn recv<T: send>(p: port<T>) -> T { recv_(***p) }
-
-// Receive on a raw port pointer
-fn recv_<T: send>(p: *rustrt::rust_port) -> T {
-    // FIXME: Due to issue 1185 we can't use a return pointer when
-    // calling C code, and since we can't create our own return
-    // pointer on the stack, we're going to call a little intrinsic
-    // that will grab the value of the return pointer, then call this
-    // function, which we will then use to call the runtime.
-    fn recv(dptr: *uint, port: *rustrt::rust_port,
-            yield: *ctypes::uintptr_t,
-            killed: *ctypes::uintptr_t) unsafe {
-        rustrt::port_recv(dptr, port, yield, killed);
-    }
-    let yield = 0u;
-    let yieldp = ptr::addr_of(yield);
-    let killed = 0u;
-    let killedp = ptr::addr_of(killed);
-    let res = rusti::call_with_retptr(bind recv(_, p, yieldp, killedp));
-    if killed != 0u {
-        fail "killed";
-    }
-    if yield != 0u {
-        // Data isn't available yet, so res has not been initialized.
-        task::yield();
-    }
-    ret res;
-}
-
-/*
-Function: chan
-
-Constructs a channel.
-
-The channel is bound to the port used to construct it.
-*/
-fn chan<T: send>(p: port<T>) -> chan<T> {
-    chan_t(task::get_task(), rustrt::get_port_id(***p))
-}
diff --git a/src/libstd/std.rc b/src/libstd/std.rc
index 9599febc398..c76497cfb7e 100644
--- a/src/libstd/std.rc
+++ b/src/libstd/std.rc
@@ -7,7 +7,7 @@
 #[license = "MIT"];
 #[crate_type = "lib"];
 
-export comm, fs, io, net, run, uv;
+export fs, io, net, run, uv;
 export c_vec, four, tri, util;
 export bitv, deque, fun_treemap, list, map, smallintmap, sort, treemap, ufind;
 export rope;
@@ -19,7 +19,6 @@ export generic_os, os, os_fs;
 
 // General io and system-services modules
 
-mod comm;
 mod fs;
 mod io;
 mod net;