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Check DHCP rebind timer before checking dhcp release timer in cause they have the same value.

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lwip: modify dhcp timer granularity from 60s to 1s

Current DHCP granularity is 60 seconds, it's not accurate, it can cause DHCP release/rebind/renew timer
timeout at the same time, also it may renew/rebind/release at wrong time, thus cause problem.
This commit is contained in:
Liu Zhi Fu
2017-03-01 14:48:27 +08:00
parent ae09a46cb8
commit 66199b1efe
3 changed files with 64 additions and 7 deletions
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14
components/lwip/include/lwip/lwip/dhcp.h
View File

@@ -45,7 +45,7 @@ extern "C" {
#endif
/** period (in seconds) of the application calling dhcp_coarse_tmr() */
#define DHCP_COARSE_TIMER_SECS 60
#define DHCP_COARSE_TIMER_SECS 1
/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
/** period (in milliseconds) of the application calling dhcp_fine_tmr() */
@@ -76,12 +76,12 @@ struct dhcp
struct dhcp_msg *msg_out; /* outgoing msg */
u16_t options_out_len; /* outgoing msg options length */
u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
u16_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
u16_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
u16_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
u16_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
u32_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
u32_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
u32_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
u32_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
u32_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
u32_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
ip_addr_t server_ip_addr; /* dhcp server address that offered this lease (ip_addr_t because passed to UDP) */
ip4_addr_t offered_ip_addr;
ip4_addr_t offered_sn_mask;

1
components/lwip/include/lwip/port/lwipopts.h
View File

@@ -602,6 +602,7 @@
#define ESP_LIGHT_SLEEP 1
#define ESP_L2_TO_L3_COPY CONFIG_L2_TO_L3_COPY
#define ESP_CNT_DEBUG 0
#define ESP_DHCP_TIMER 1
#define TCP_WND_DEFAULT (4*TCP_MSS)
#define TCP_SND_BUF_DEFAULT (2*TCP_MSS)