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implement isc_nm_tcpconnect()

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the isc_nm_tcpconnect() function establishes a client connection via
TCP.  once the connection is esablished, a callback function will be
called with a newly created network manager handle.
This commit is contained in:
Evan Hunt
2019-12-16 18:24:55 -08:00
committed by Witold Kręcicki
parent cd79b49538
commit abbb79f9d1
5 changed files with 104 additions and 10 deletions
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6
lib/isc/netmgr/netmgr.c
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@@ -1140,6 +1140,9 @@ nmhandle_free(isc_nmsocket_t *sock, isc_nmhandle_t *handle) {
static void
nmhandle_deactivate(isc_nmsocket_t *sock, isc_nmhandle_t *handle) {
size_t handlenum;
bool reuse = false;
/*
* We do all of this under lock to avoid races with socket
* destruction. We have to do this now, because at this point the
@@ -1152,10 +1155,9 @@ nmhandle_deactivate(isc_nmsocket_t *sock, isc_nmhandle_t *handle) {
INSIST(atomic_load(&sock->ah) > 0);
sock->ah_handles[handle->ah_pos] = NULL;
size_t handlenum = atomic_fetch_sub(&sock->ah, 1) - 1;
handlenum = atomic_fetch_sub(&sock->ah, 1) - 1;
sock->ah_frees[handlenum] = handle->ah_pos;
handle->ah_pos = 0;
bool reuse = false;
if (atomic_load(&sock->active)) {
reuse = isc_astack_trypush(sock->inactivehandles, handle);
}