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rpl: remove rpl_send_mutex

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This PR is based on #2155.
Since RPL/Trickle is only using one thread in #2155, the send mutex becomes
obsolete and can be removed safely.
This commit is contained in:
Cenk Gündoğan 2014-12-14 11:19:05 +01:00
parent 319f1b25ae
commit 993f7cc7c6
4 changed files with 8 additions and 28 deletions
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20
sys/net/include/rpl.h
View File

@ -27,7 +27,6 @@
#include <string.h>
#include <stdint.h>
#include <vtimer.h>
#include <mutex.h>
#include <transceiver.h>
#include "ipv6.h"
#include "rpl/rpl_dodag.h"
@ -46,10 +45,6 @@ extern "C" {
/* global variables */
extern kernel_pid_t rpl_process_pid;
extern uint8_t rpl_max_routing_entries;
/* needed for sending RPL-messages */
extern mutex_t rpl_send_mutex;
extern msg_t rpl_msg_queue[RPL_PKT_RECV_BUF_SIZE];
extern char rpl_process_buf[RPL_PROCESS_STACKSIZE];
extern uint8_t rpl_buffer[BUFFER_SIZE - LL_HDR_LEN];
@ -57,7 +52,7 @@ extern uint8_t rpl_buffer[BUFFER_SIZE - LL_HDR_LEN];
/**
* @brief Initialization of RPL.
*
* This function initializes all basic RPL resources such as mutex for send/receive,
* This function initializes all basic RPL resources such as
* corresponding objective functions and sixlowpan (including own address). Calls
* initialization for mode as specified by PL_DEFAULT_MOP in rpl_structs.h.
*
@ -83,7 +78,7 @@ void rpl_init_root(void);
* @brief Sends a DIO-message to a given destination
*
* This function sends a DIO message to a given destination. Because nodes can act
* differently in different modes, this function just sets the mutex and call the DIO
* differently in different modes, this function calls the DIO
* sending function of the chosen mode.
*
* @param[in] destination IPv6-address of the destination of the DIO. Should be a direct neighbor.
@ -95,7 +90,7 @@ void rpl_send_DIO(ipv6_addr_t *destination);
* @brief Sends a DAO-message to a given destination
*
* This function sends a DAO message to a given destination. Because nodes can act
* differently in different modes, this function just sets the mutex and call the DAO
* differently in different modes, this function calls the DAO
* sending function of the chosen mode.
*
* @param[in] destination IPv6-address of the destination of the DAO. Should be the preferred parent.
@ -110,7 +105,7 @@ void rpl_send_DAO(ipv6_addr_t *destination, uint8_t lifetime, bool default_lifet
* @brief Sends a DIS-message to a given destination
*
* This function sends a DIS message to a given destination or multicast-address. Because nodes can act
* differently in different modes, this function just sets the mutex and call the DIS
* differently in different modes, this function calls the DIS
* sending function of the chosen mode.
*
* @param[in] destination IPv6-address of the destination of the DIS. Should be a direct neighbor or multicast-address.
@ -122,7 +117,7 @@ void rpl_send_DIS(ipv6_addr_t *destination);
* @brief Sends a DAO acknowledgment-message to a given destination
*
* This function sends a DAO_ACK message to a given destination. Because nodes can act
* differently in different modes, this function just sets the mutex and call the DAO_ACK
* differently in different modes, this function calls the DAO_ACK
* sending function of the chosen mode.
*
* @param[in] destination IPv6-address of the destination of the DAO_ACK. Should be a direct neighbor.
@ -170,10 +165,7 @@ void rpl_recv_DAO_ACK(void);
* @brief Initialization of RPl-root.
*
* This function initializes all RPL resources especially for root purposes.
* corresponding objective functions and sixlowpan (including own address). It also register mutexes for
* sending and receiving RPL-based messages. Both are necessary because of parallel access from different
* layers/modules of RIOT. May change with future structure changes.
*
* corresponding objective functions and sixlowpan (including own address).
* @param arg ignored
* @returns nothing
*/

3
sys/net/include/rpl/rpl_nonstoring.h
View File

@ -143,8 +143,7 @@ void rpl_recv_dao_ack_mode(void);
*
* This function sends any RPl related messages to a given destination. This implementation should be equal
* for all modes and therefore should not be altered. Every mode related RPL-sending function calls this for
* relaying it in lower layers to sixlowpan. Because send-functions are wrapped by a mutex in rpl.c, the same
* mutex applies here.
* relaying it in lower layers to sixlowpan.
*
* @param[in] destination IPv6-address of the destination of the message.
* @param[in] payload Payload of the message.

3
sys/net/include/rpl/rpl_storing.h
View File

@ -144,8 +144,7 @@ void rpl_recv_dao_ack_mode(void);
*
* This function sends any RPl related messages to a given destination. This implementation should be equal
* for all modes and therefore should not be altered. Every mode related RPL-sending function calls this for
* relaying it in lower layers to sixlowpan. Because send-functions are wrapped by a mutex in rpl.c, the same
* mutex applies here.
* relaying it in lower layers to sixlowpan.
*
* @param[in] destination IPv6-address of the destination of the message.
* @param[in] payload Payload of the message.

10
sys/net/routing/rpl/rpl.c
View File

@ -23,7 +23,6 @@
#include <string.h>
#include "vtimer.h"
#include "thread.h"
#include "mutex.h"
#include "msg.h"
#include "rpl.h"
@ -51,7 +50,6 @@ char addr_str[IPV6_MAX_ADDR_STR_LEN];
/* global variables */
kernel_pid_t rpl_process_pid = KERNEL_PID_UNDEF;
mutex_t rpl_send_mutex = MUTEX_INIT;
msg_t rpl_msg_queue[RPL_PKT_RECV_BUF_SIZE];
char rpl_process_buf[RPL_PROCESS_STACKSIZE];
uint8_t rpl_buffer[BUFFER_SIZE - LL_HDR_LEN];
@ -291,9 +289,7 @@ void rpl_send_DIO(ipv6_addr_t *destination)
DEBUGF("Send DIO to %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, destination));
}
mutex_lock(&rpl_send_mutex);
rpl_send_DIO_mode(destination);
mutex_unlock(&rpl_send_mutex);
}
void rpl_send_DAO(ipv6_addr_t *destination, uint8_t lifetime,
@ -303,9 +299,7 @@ void rpl_send_DAO(ipv6_addr_t *destination, uint8_t lifetime,
DEBUGF("Send DAO to %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, destination));
}
mutex_lock(&rpl_send_mutex);
rpl_send_DAO_mode(destination, lifetime, default_lifetime, start_index);
mutex_unlock(&rpl_send_mutex);
}
void rpl_send_DIS(ipv6_addr_t *destination)
@ -314,9 +308,7 @@ void rpl_send_DIS(ipv6_addr_t *destination)
DEBUGF("Send DIS to %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, destination));
}
mutex_lock(&rpl_send_mutex);
rpl_send_DIS_mode(destination);
mutex_unlock(&rpl_send_mutex);
}
void rpl_send_DAO_ACK(ipv6_addr_t *destination)
@ -326,9 +318,7 @@ void rpl_send_DAO_ACK(ipv6_addr_t *destination)
ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, destination));
}
mutex_lock(&rpl_send_mutex);
rpl_send_DAO_ACK_mode(destination);
mutex_unlock(&rpl_send_mutex);
}
void rpl_recv_DIO(void)