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path: root/src/platform/windows/win_resolv.c
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Diffstat (limited to 'src/platform/windows/win_resolv.c')
-rw-r--r--src/platform/windows/win_resolv.c138
1 files changed, 82 insertions, 56 deletions
diff --git a/src/platform/windows/win_resolv.c b/src/platform/windows/win_resolv.c
index 070bf40d..2bc68c32 100644
--- a/src/platform/windows/win_resolv.c
+++ b/src/platform/windows/win_resolv.c
@@ -29,49 +29,55 @@
#define NNG_WIN_RESOLV_CONCURRENCY 4
#endif
-static nni_taskq *nni_win_resolv_tq = NULL;
-static nni_mtx nni_win_resolv_mtx;
-
-typedef struct nni_win_resolv_item nni_win_resolv_item;
-struct nni_win_resolv_item {
- int family;
- int passive;
- const char *name;
- const char *serv;
- int proto;
- nni_aio * aio;
- nni_task task;
+static nni_taskq *win_resolv_tq = NULL;
+static nni_mtx win_resolv_mtx;
+
+typedef struct win_resolv_item win_resolv_item;
+struct win_resolv_item {
+ int family;
+ int passive;
+ const char * name;
+ const char * serv;
+ int proto;
+ nni_aio * aio;
+ nni_task * task;
+ nng_sockaddr sa;
};
static void
-nni_win_resolv_finish(nni_win_resolv_item *item, int rv)
+win_resolv_finish(win_resolv_item *item, int rv)
{
- nni_aio *aio = item->aio;
-
- nni_aio_set_prov_data(aio, NULL);
- nni_aio_finish(aio, rv, 0);
- NNI_FREE_STRUCT(item);
+ nni_aio *aio;
+
+ if (((aio = item->aio) != NULL) &&
+ (nni_aio_get_prov_data(aio) == item)) {
+ nni_sockaddr *sa = nni_aio_get_input(aio, 0);
+ nni_aio_set_prov_data(aio, NULL);
+ memcpy(sa, &item->sa, sizeof(*sa));
+ nni_aio_finish(aio, rv, 0);
+ nni_task_fini(item->task);
+ NNI_FREE_STRUCT(item);
+ }
}
static void
-nni_win_resolv_cancel(nni_aio *aio, int rv)
+win_resolv_cancel(nni_aio *aio, int rv)
{
- nni_win_resolv_item *item;
+ win_resolv_item *item;
- nni_mtx_lock(&nni_win_resolv_mtx);
+ nni_mtx_lock(&win_resolv_mtx);
if ((item = nni_aio_get_prov_data(aio)) == NULL) {
- nni_mtx_unlock(&nni_win_resolv_mtx);
+ nni_mtx_unlock(&win_resolv_mtx);
return;
}
nni_aio_set_prov_data(aio, NULL);
- nni_mtx_unlock(&nni_win_resolv_mtx);
- nni_task_cancel(&item->task);
- NNI_FREE_STRUCT(item);
+ item->aio = NULL;
+ nni_mtx_unlock(&win_resolv_mtx);
nni_aio_finish_error(aio, rv);
}
static int
-nni_win_gai_errno(int rv)
+win_gai_errno(int rv)
{
switch (rv) {
case 0:
@@ -98,17 +104,26 @@ nni_win_gai_errno(int rv)
}
static void
-nni_win_resolv_task(void *arg)
+win_resolv_task(void *arg)
{
- nni_win_resolv_item *item = arg;
- nni_aio * aio = item->aio;
- struct addrinfo hints;
- struct addrinfo * results;
- struct addrinfo * probe;
- int rv;
+ win_resolv_item *item = arg;
+ struct addrinfo hints;
+ struct addrinfo *results;
+ struct addrinfo *probe;
+ int rv;
results = NULL;
+ nni_mtx_lock(&win_resolv_mtx);
+ if (item->aio == NULL) {
+ nni_mtx_unlock(&win_resolv_mtx);
+ // Caller canceled, and no longer cares about this.
+ nni_task_fini(item->task);
+ NNI_FREE_STRUCT(item);
+ return;
+ }
+ nni_mtx_unlock(&win_resolv_mtx);
+
// We treat these all as IP addresses. The service and the
// host part are split.
memset(&hints, 0, sizeof(hints));
@@ -124,7 +139,7 @@ nni_win_resolv_task(void *arg)
rv = getaddrinfo(item->name, item->serv, &hints, &results);
if (rv != 0) {
- rv = nni_win_gai_errno(rv);
+ rv = win_gai_errno(rv);
goto done;
}
@@ -142,7 +157,7 @@ nni_win_resolv_task(void *arg)
if (probe != NULL) {
struct sockaddr_in * sin;
struct sockaddr_in6 *sin6;
- nni_sockaddr * sa = nni_aio_get_input(aio, 0);
+ nni_sockaddr * sa = &item->sa;
switch (probe->ai_addr->sa_family) {
case AF_INET:
@@ -167,17 +182,18 @@ done:
if (results != NULL) {
freeaddrinfo(results);
}
- nni_mtx_lock(&nni_win_resolv_mtx);
- nni_win_resolv_finish(item, rv);
- nni_mtx_unlock(&nni_win_resolv_mtx);
+ nni_mtx_lock(&win_resolv_mtx);
+ win_resolv_finish(item, rv);
+ nni_mtx_unlock(&win_resolv_mtx);
}
static void
-nni_win_resolv_ip(const char *host, const char *serv, int passive, int family,
+win_resolv_ip(const char *host, const char *serv, int passive, int family,
int proto, nni_aio *aio)
{
- nni_win_resolv_item *item;
- int fam;
+ win_resolv_item *item;
+ int fam;
+ int rv;
if (nni_aio_begin(aio) != 0) {
return;
@@ -202,8 +218,12 @@ nni_win_resolv_ip(const char *host, const char *serv, int passive, int family,
return;
}
- nni_task_init(
- nni_win_resolv_tq, &item->task, nni_win_resolv_task, item);
+ rv = nni_task_init(&item->task, win_resolv_tq, win_resolv_task, item);
+ if (rv != 0) {
+ NNI_FREE_STRUCT(item);
+ nni_aio_finish_error(aio, rv);
+ return;
+ }
item->passive = passive;
item->name = host;
@@ -212,24 +232,30 @@ nni_win_resolv_ip(const char *host, const char *serv, int passive, int family,
item->aio = aio;
item->family = fam;
- nni_mtx_lock(&nni_win_resolv_mtx);
- nni_aio_schedule(aio, nni_win_resolv_cancel, item);
- nni_task_dispatch(&item->task);
- nni_mtx_unlock(&nni_win_resolv_mtx);
+ nni_mtx_lock(&win_resolv_mtx);
+ if ((rv = nni_aio_schedule(aio, win_resolv_cancel, item)) != 0) {
+ nni_mtx_unlock(&win_resolv_mtx);
+ nni_task_fini(item->task);
+ NNI_FREE_STRUCT(item);
+ nni_aio_finish_error(aio, rv);
+ return;
+ }
+ nni_task_dispatch(item->task);
+ nni_mtx_unlock(&win_resolv_mtx);
}
void
nni_plat_tcp_resolv(
const char *host, const char *serv, int family, int passive, nni_aio *aio)
{
- nni_win_resolv_ip(host, serv, passive, family, IPPROTO_TCP, aio);
+ win_resolv_ip(host, serv, passive, family, IPPROTO_TCP, aio);
}
void
nni_plat_udp_resolv(
const char *host, const char *serv, int family, int passive, nni_aio *aio)
{
- nni_win_resolv_ip(host, serv, passive, family, IPPROTO_UDP, aio);
+ win_resolv_ip(host, serv, passive, family, IPPROTO_UDP, aio);
}
int
@@ -237,10 +263,10 @@ nni_win_resolv_sysinit(void)
{
int rv;
- nni_mtx_init(&nni_win_resolv_mtx);
+ nni_mtx_init(&win_resolv_mtx);
- if ((rv = nni_taskq_init(&nni_win_resolv_tq, 4)) != 0) {
- nni_mtx_fini(&nni_win_resolv_mtx);
+ if ((rv = nni_taskq_init(&win_resolv_tq, 4)) != 0) {
+ nni_mtx_fini(&win_resolv_mtx);
return (rv);
}
return (0);
@@ -249,11 +275,11 @@ nni_win_resolv_sysinit(void)
void
nni_win_resolv_sysfini(void)
{
- if (nni_win_resolv_tq != NULL) {
- nni_taskq_fini(nni_win_resolv_tq);
- nni_win_resolv_tq = NULL;
+ if (win_resolv_tq != NULL) {
+ nni_taskq_fini(win_resolv_tq);
+ win_resolv_tq = NULL;
}
- nni_mtx_fini(&nni_win_resolv_mtx);
+ nni_mtx_fini(&win_resolv_mtx);
}
#endif // NNG_PLATFORM_WINDOWS
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2026-01-24 03:25:06 +0000