Extract the alert-socket code into lib/net.

This code was in compat_threads, since it was _used_ for efficiently
notifying the main libevent thread from another thread.  But in
spite of its usage, it's fundamentally a part of the network code.

1 files changed, 0 insertions, 26 deletions

diff --git a/src/common/compat_threads.h b/src/common/compat_threads.h
index d1fdfc96cc..69350421b5 100644
--- a/src/common/compat_threads.h
+++ b/src/common/compat_threads.h
@@ -52,32 +52,6 @@ int tor_cond_wait(tor_cond_t *cond, tor_mutex_t *mutex,
 void tor_cond_signal_one(tor_cond_t *cond);
 void tor_cond_signal_all(tor_cond_t *cond);
 
-/** Helper type used to manage waking up the main thread while it's in
- * the libevent main loop.  Used by the work queue code. */
-typedef struct alert_sockets_s {
-  /* XXXX This structure needs a better name. */
-  /** Socket that the main thread should listen for EV_READ events on.
-   * Note that this socket may be a regular fd on a non-Windows platform.
-   */
-  tor_socket_t read_fd;
-  /** Socket to use when alerting the main thread. */
-  tor_socket_t write_fd;
-  /** Function to alert the main thread */
-  int (*alert_fn)(tor_socket_t write_fd);
-  /** Function to make the main thread no longer alerted. */
-  int (*drain_fn)(tor_socket_t read_fd);
-} alert_sockets_t;
-
-/* Flags to disable one or more alert_sockets backends. */
-#define ASOCKS_NOEVENTFD2   (1u<<0)
-#define ASOCKS_NOEVENTFD    (1u<<1)
-#define ASOCKS_NOPIPE2      (1u<<2)
-#define ASOCKS_NOPIPE       (1u<<3)
-#define ASOCKS_NOSOCKETPAIR (1u<<4)
-
-int alert_sockets_create(alert_sockets_t *socks_out, uint32_t flags);
-void alert_sockets_close(alert_sockets_t *socks);
-
 typedef struct tor_threadlocal_s {
 #ifdef _WIN32
   DWORD index;