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Refactor mg polling

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* Change return type of mg_mgr_poll to return number of events
 * Add mg_mgr_min_timer
 * Refactor main poll loop to remove LwIP-specific stuff

CL: Refactor mg polling

PUBLISHED_FROM=dc94618b32fa3c84a2f053bd04d134297780ec82
This commit is contained in:
Deomid Ryabkov authored and Cesanta Bot committed 2018-09-06 06:34:18 +00:00
1 parent 955d4a3129
commit 421e099f2b
11 files changed
+60 -95
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src/common/platforms/lwip/mg_lwip.h
-1
View File
@@ -66,7 +66,6 @@ typedef int sock_t;
#if MG_NET_IF == MG_NET_IF_LWIP_LOW_LEVEL
struct mg_mgr;
struct mg_connection;
uint32_t mg_lwip_get_poll_delay_ms(struct mg_mgr *mgr);
void mg_lwip_set_keepalive_params(struct mg_connection *nc, int idle,
int interval, int count);
#endif
src/common/platforms/lwip/mg_lwip_ev_mgr.c
-32
View File
@@ -167,36 +167,4 @@ time_t mg_lwip_if_poll(struct mg_iface *iface, int timeout_ms) {
return now;
}
uint32_t mg_lwip_get_poll_delay_ms(struct mg_mgr *mgr) {
struct mg_connection *nc;
double now;
double min_timer = 0;
int num_timers = 0;
mg_ev_mgr_lwip_process_signals(mgr);
for (nc = mg_next(mgr, NULL); nc != NULL; nc = mg_next(mgr, nc)) {
struct mg_lwip_conn_state *cs = (struct mg_lwip_conn_state *) nc->sock;
if (nc->ev_timer_time > 0) {
if (num_timers == 0 || nc->ev_timer_time < min_timer) {
min_timer = nc->ev_timer_time;
}
num_timers++;
}
/* We want and can send data, request a poll immediately. */
if (nc->sock != INVALID_SOCKET && mg_lwip_if_can_send(nc, cs)) {
return 0;
}
}
uint32_t timeout_ms = ~0;
now = mg_time();
if (num_timers > 0) {
/* If we have a timer that is past due, do a poll ASAP. */
if (min_timer < now) return 0;
double timer_timeout_ms = (min_timer - now) * 1000 + 1 /* rounding */;
if (timer_timeout_ms < timeout_ms) {
timeout_ms = timer_timeout_ms;
}
}
return timeout_ms;
}
#endif /* MG_NET_IF == MG_NET_IF_LWIP_LOW_LEVEL */