mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-31 06:25:31 +00:00
Code Issues Releases Wiki Activity

Use isc_uv_export() to pass bound TCP listening socket to child listeners.

Browse Source 
For multithreaded TCP listening we need to pass a bound socket to all
listening threads. Instead of using uv_pipe handle passing method which
is quite complex (lots of callbacks, each of them with its own error
handling) we now use isc_uv_export() to export the socket, pass it as a
member of the isc__netievent_tcpchildlisten_t structure, and then
isc_uv_import() it in the child thread, simplifying the process
significantly.
This commit is contained in:
Witold Kręcicki
2020-01-07 12:02:41 +01:00
committed by Evan Hunt
parent c6c0a9fdba
commit 67c1ca9a79
3 changed files with 33 additions and 202 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
lib/isc/netmgr/netmgr.c
View File

@@ -43,12 +43,6 @@
ISC_THREAD_LOCAL int isc__nm_tid_v = ISC_NETMGR_TID_UNKNOWN;
#ifdef WIN32
#define NAMED_PIPE_PATTERN "\\\\.\\pipe\\named-%d-%u.pipe"
#else
#define NAMED_PIPE_PATTERN "/tmp/named-%d-%u.pipe"
#endif
static void
nmsocket_maybe_destroy(isc_nmsocket_t *sock);
static void
@@ -856,16 +850,6 @@ isc__nmsocket_init(isc_nmsocket_t *sock, isc_nm_t *mgr,
sock->ah_handles[i] = NULL;
}
/*
* Use a random number in the named pipe name. Also add getpid()
* to the name to make sure we don't get a conflict between
* different unit tests running at the same time, where the PRNG
* is initialized to a constant seed.
*/
snprintf(sock->ipc_pipe_name, sizeof(sock->ipc_pipe_name),
NAMED_PIPE_PATTERN, getpid(), isc_random32());
sock->ipc_pipe_name[sizeof(sock->ipc_pipe_name) - 1] = '\0';
isc_mutex_init(&sock->lock);
isc_condition_init(&sock->cond);
isc_refcount_init(&sock->references, 1);