Joshua Wise's Git repositories - netwatch.git/blob

1 /*

4 *

5 * Redistribution and use in source and binary forms, with or without modification,

6 * are permitted provided that the following conditions are met:

7 *

8 * 1. Redistributions of source code must retain the above copyright notice,

9 * this list of conditions and the following disclaimer.

10 * 2. Redistributions in binary form must reproduce the above copyright notice,

11 * this list of conditions and the following disclaimer in the documentation

12 * and/or other materials provided with the distribution.

13 * 3. The name of the author may not be used to endorse or promote products

14 * derived from this software without specific prior written permission.

15 *

16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED

17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT

19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT

21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY

25 * OF SUCH DAMAGE.

26 *

27 * This file is part of the lwIP TCP/IP stack.

28 *

29 * Author: Adam Dunkels <adam@sics.se>

30 *

31 */

32 #ifndef __LWIP_TCPIP_H__

33 #define __LWIP_TCPIP_H__

35 #include "lwip/opt.h"

37 #if !NO_SYS /* don't build if not configured for use in lwipopts.h */

39 #include "lwip/api_msg.h"

40 #include "lwip/netifapi.h"

41 #include "lwip/pbuf.h"

42 #include "lwip/api.h"

43 #include "lwip/sys.h"

45 #ifdef __cplusplus

46 extern "C" {

47 #endif

49 #if LWIP_TCPIP_CORE_LOCKING

50 /** The global semaphore to lock the stack. */

51 extern sys_sem_t lock_tcpip_core;

52 #define LOCK_TCPIP_CORE() sys_sem_wait(lock_tcpip_core)

53 #define UNLOCK_TCPIP_CORE() sys_sem_signal(lock_tcpip_core)

54 #define TCPIP_APIMSG(m) tcpip_apimsg_lock(m)

55 #define TCPIP_APIMSG_ACK(m)

56 #define TCPIP_NETIFAPI(m) tcpip_netifapi_lock(m)

57 #define TCPIP_NETIFAPI_ACK(m)

58 #else

59 #define LOCK_TCPIP_CORE()

60 #define UNLOCK_TCPIP_CORE()

61 #define TCPIP_APIMSG(m) tcpip_apimsg(m)

62 #define TCPIP_APIMSG_ACK(m) sys_sem_signal(m->conn->op_completed)

63 #define TCPIP_NETIFAPI(m) tcpip_netifapi(m)

64 #define TCPIP_NETIFAPI_ACK(m) sys_sem_signal(m->sem)

65 #endif /* LWIP_TCPIP_CORE_LOCKING */

67 void tcpip_init(void (* tcpip_init_done)(void *), void *arg);

69 #if LWIP_NETCONN

70 err_t tcpip_apimsg(struct api_msg *apimsg);

71 #if LWIP_TCPIP_CORE_LOCKING

72 err_t tcpip_apimsg_lock(struct api_msg *apimsg);

73 #endif /* LWIP_TCPIP_CORE_LOCKING */

74 #endif /* LWIP_NETCONN */

76 err_t tcpip_input(struct pbuf *p, struct netif *inp);

78 #if LWIP_NETIF_API

79 err_t tcpip_netifapi(struct netifapi_msg *netifapimsg);

80 #if LWIP_TCPIP_CORE_LOCKING

81 err_t tcpip_netifapi_lock(struct netifapi_msg *netifapimsg);

82 #endif /* LWIP_TCPIP_CORE_LOCKING */

83 #endif /* LWIP_NETIF_API */

85 err_t tcpip_callback_with_block(void (*f)(void *ctx), void *ctx, u8_t block);

86 #define tcpip_callback(f,ctx) tcpip_callback_with_block(f,ctx,1)

88 err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);

89 #define tcpip_untimeout(h, arg) tcpip_timeout(0xffffffff, h, arg)

91 enum tcpip_msg_type {

92 #if LWIP_NETCONN

93 TCPIP_MSG_API,

94 #endif /* LWIP_NETCONN */

95 TCPIP_MSG_INPKT,

96 #if LWIP_NETIF_API

97 TCPIP_MSG_NETIFAPI,

98 #endif /* LWIP_NETIF_API */

99 TCPIP_MSG_CALLBACK,

100 TCPIP_MSG_TIMEOUT

101 };

102

103 struct tcpip_msg {

104 enum tcpip_msg_type type;

105 sys_sem_t *sem;

106 union {

107 #if LWIP_NETCONN

108 struct api_msg *apimsg;

109 #endif /* LWIP_NETCONN */

110 #if LWIP_NETIF_API

111 struct netifapi_msg *netifapimsg;

112 #endif /* LWIP_NETIF_API */

113 struct {

114 struct pbuf *p;

115 struct netif *netif;

116 } inp;

117 struct {

118 void (*f)(void *ctx);

119 void *ctx;

120 } cb;

121 struct {

122 u32_t msecs;

123 sys_timeout_handler h;

124 void *arg;

125 } tmo;

126 } msg;

127 };

128

129 #ifdef __cplusplus

130 }

131 #endif

132

133 #endif /* !NO_SYS */

134

135 #endif /* __LWIP_TCPIP_H__ */