Shinichiro Nakamura / Mbed 2 deprecated Toragi_2012_PachubeCosm

Hi. This is the feed program for Cosm. (The previous name of the services is Pachube.)

Dependencies:   mbed ThermistorPack Pachube ConfigFile EthernetNetIf TextLCD HTTPClient_ToBeRemoved FatFileSystem SDFileSystem

extlib/EthernetNetIf/LPC2368/lwip/include/lwip/sys.h@0:521ba375aa0f, 2012-08-06 (annotated)

Committer:
shintamainjp
Date:
Mon Aug 06 12:37:59 2012 +0000
Revision:
0:521ba375aa0f
Pachube renamed to Cosm.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shintamainjp 0:521ba375aa0f 1 /*
shintamainjp 0:521ba375aa0f 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
shintamainjp 0:521ba375aa0f 3 * All rights reserved.
shintamainjp 0:521ba375aa0f 4 *
shintamainjp 0:521ba375aa0f 5 * Redistribution and use in source and binary forms, with or without modification,
shintamainjp 0:521ba375aa0f 6 * are permitted provided that the following conditions are met:
shintamainjp 0:521ba375aa0f 7 *
shintamainjp 0:521ba375aa0f 8 * 1. Redistributions of source code must retain the above copyright notice,
shintamainjp 0:521ba375aa0f 9 * this list of conditions and the following disclaimer.
shintamainjp 0:521ba375aa0f 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
shintamainjp 0:521ba375aa0f 11 * this list of conditions and the following disclaimer in the documentation
shintamainjp 0:521ba375aa0f 12 * and/or other materials provided with the distribution.
shintamainjp 0:521ba375aa0f 13 * 3. The name of the author may not be used to endorse or promote products
shintamainjp 0:521ba375aa0f 14 * derived from this software without specific prior written permission.
shintamainjp 0:521ba375aa0f 15 *
shintamainjp 0:521ba375aa0f 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
shintamainjp 0:521ba375aa0f 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
shintamainjp 0:521ba375aa0f 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
shintamainjp 0:521ba375aa0f 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
shintamainjp 0:521ba375aa0f 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
shintamainjp 0:521ba375aa0f 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
shintamainjp 0:521ba375aa0f 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
shintamainjp 0:521ba375aa0f 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
shintamainjp 0:521ba375aa0f 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
shintamainjp 0:521ba375aa0f 25 * OF SUCH DAMAGE.
shintamainjp 0:521ba375aa0f 26 *
shintamainjp 0:521ba375aa0f 27 * This file is part of the lwIP TCP/IP stack.
shintamainjp 0:521ba375aa0f 28 *
shintamainjp 0:521ba375aa0f 29 * Author: Adam Dunkels <adam@sics.se>
shintamainjp 0:521ba375aa0f 30 *
shintamainjp 0:521ba375aa0f 31 */
shintamainjp 0:521ba375aa0f 32 #ifndef __LWIP_SYS_H__
shintamainjp 0:521ba375aa0f 33 #define __LWIP_SYS_H__
shintamainjp 0:521ba375aa0f 34
shintamainjp 0:521ba375aa0f 35 #include "lwip/opt.h"
shintamainjp 0:521ba375aa0f 36
shintamainjp 0:521ba375aa0f 37 #ifdef __cplusplus
shintamainjp 0:521ba375aa0f 38 extern "C" {
shintamainjp 0:521ba375aa0f 39 #endif
shintamainjp 0:521ba375aa0f 40
shintamainjp 0:521ba375aa0f 41 #if NO_SYS
shintamainjp 0:521ba375aa0f 42
shintamainjp 0:521ba375aa0f 43 /* For a totally minimal and standalone system, we provide null
shintamainjp 0:521ba375aa0f 44 definitions of the sys_ functions. */
shintamainjp 0:521ba375aa0f 45 typedef u8_t sys_sem_t;
shintamainjp 0:521ba375aa0f 46 typedef u8_t sys_mutex_t;
shintamainjp 0:521ba375aa0f 47 typedef u8_t sys_mbox_t;
shintamainjp 0:521ba375aa0f 48
shintamainjp 0:521ba375aa0f 49 #define sys_sem_new(s, c) ERR_OK
shintamainjp 0:521ba375aa0f 50 #define sys_sem_signal(s)
shintamainjp 0:521ba375aa0f 51 #define sys_sem_wait(s)
shintamainjp 0:521ba375aa0f 52 #define sys_arch_sem_wait(s,t)
shintamainjp 0:521ba375aa0f 53 #define sys_sem_free(s)
shintamainjp 0:521ba375aa0f 54 #define sys_mutex_new(mu) ERR_OK
shintamainjp 0:521ba375aa0f 55 #define sys_mutex_lock(mu)
shintamainjp 0:521ba375aa0f 56 #define sys_mutex_unlock(mu)
shintamainjp 0:521ba375aa0f 57 #define sys_mutex_free(mu)
shintamainjp 0:521ba375aa0f 58 #define sys_mbox_new(m, s) ERR_OK
shintamainjp 0:521ba375aa0f 59 #define sys_mbox_fetch(m,d)
shintamainjp 0:521ba375aa0f 60 #define sys_mbox_tryfetch(m,d)
shintamainjp 0:521ba375aa0f 61 #define sys_mbox_post(m,d)
shintamainjp 0:521ba375aa0f 62 #define sys_mbox_trypost(m,d)
shintamainjp 0:521ba375aa0f 63 #define sys_mbox_free(m)
shintamainjp 0:521ba375aa0f 64
shintamainjp 0:521ba375aa0f 65 #define sys_thread_new(n,t,a,s,p)
shintamainjp 0:521ba375aa0f 66
shintamainjp 0:521ba375aa0f 67 #define sys_msleep(t)
shintamainjp 0:521ba375aa0f 68
shintamainjp 0:521ba375aa0f 69 #else /* NO_SYS */
shintamainjp 0:521ba375aa0f 70
shintamainjp 0:521ba375aa0f 71 /** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */
shintamainjp 0:521ba375aa0f 72 #define SYS_ARCH_TIMEOUT 0xffffffffUL
shintamainjp 0:521ba375aa0f 73
shintamainjp 0:521ba375aa0f 74 /** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate.
shintamainjp 0:521ba375aa0f 75 * For now we use the same magic value, but we allow this to change in future.
shintamainjp 0:521ba375aa0f 76 */
shintamainjp 0:521ba375aa0f 77 #define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT
shintamainjp 0:521ba375aa0f 78
shintamainjp 0:521ba375aa0f 79 #include "lwip/err.h"
shintamainjp 0:521ba375aa0f 80 #include "arch/sys_arch.h"
shintamainjp 0:521ba375aa0f 81
shintamainjp 0:521ba375aa0f 82 /** Function prototype for thread functions */
shintamainjp 0:521ba375aa0f 83 typedef void (*lwip_thread_fn)(void *arg);
shintamainjp 0:521ba375aa0f 84
shintamainjp 0:521ba375aa0f 85 /* Function prototypes for functions to be implemented by platform ports
shintamainjp 0:521ba375aa0f 86 (in sys_arch.c) */
shintamainjp 0:521ba375aa0f 87
shintamainjp 0:521ba375aa0f 88 /* Mutex functions: */
shintamainjp 0:521ba375aa0f 89
shintamainjp 0:521ba375aa0f 90 /** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores
shintamainjp 0:521ba375aa0f 91 should be used instead */
shintamainjp 0:521ba375aa0f 92 #if LWIP_COMPAT_MUTEX
shintamainjp 0:521ba375aa0f 93 /* for old ports that don't have mutexes: define them to binary semaphores */
shintamainjp 0:521ba375aa0f 94 #define sys_mutex_t sys_sem_t
shintamainjp 0:521ba375aa0f 95 #define sys_mutex_new(mutex) sys_sem_new(mutex, 1)
shintamainjp 0:521ba375aa0f 96 #define sys_mutex_lock(mutex) sys_sem_wait(mutex)
shintamainjp 0:521ba375aa0f 97 #define sys_mutex_unlock(mutex) sys_sem_signal(mutex)
shintamainjp 0:521ba375aa0f 98 #define sys_mutex_free(mutex) sys_sem_free(mutex)
shintamainjp 0:521ba375aa0f 99 #define sys_mutex_valid(mutex) sys_sem_valid(mutex)
shintamainjp 0:521ba375aa0f 100 #define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex)
shintamainjp 0:521ba375aa0f 101
shintamainjp 0:521ba375aa0f 102 #else /* LWIP_COMPAT_MUTEX */
shintamainjp 0:521ba375aa0f 103
shintamainjp 0:521ba375aa0f 104 /** Create a new mutex
shintamainjp 0:521ba375aa0f 105 * @param mutex pointer to the mutex to create
shintamainjp 0:521ba375aa0f 106 * @return a new mutex */
shintamainjp 0:521ba375aa0f 107 err_t sys_mutex_new(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 108 /** Lock a mutex
shintamainjp 0:521ba375aa0f 109 * @param mutex the mutex to lock */
shintamainjp 0:521ba375aa0f 110 void sys_mutex_lock(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 111 /** Unlock a mutex
shintamainjp 0:521ba375aa0f 112 * @param mutex the mutex to unlock */
shintamainjp 0:521ba375aa0f 113 void sys_mutex_unlock(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 114 /** Delete a semaphore
shintamainjp 0:521ba375aa0f 115 * @param mutex the mutex to delete */
shintamainjp 0:521ba375aa0f 116 void sys_mutex_free(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 117 #ifndef sys_mutex_valid
shintamainjp 0:521ba375aa0f 118 /** Check if a mutex is valid/allocated: return 1 for valid, 0 for invalid */
shintamainjp 0:521ba375aa0f 119 int sys_mutex_valid(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 120 #endif
shintamainjp 0:521ba375aa0f 121 #ifndef sys_mutex_set_invalid
shintamainjp 0:521ba375aa0f 122 /** Set a mutex invalid so that sys_mutex_valid returns 0 */
shintamainjp 0:521ba375aa0f 123 void sys_mutex_set_invalid(sys_mutex_t *mutex);
shintamainjp 0:521ba375aa0f 124 #endif
shintamainjp 0:521ba375aa0f 125 #endif /* LWIP_COMPAT_MUTEX */
shintamainjp 0:521ba375aa0f 126
shintamainjp 0:521ba375aa0f 127 /* Semaphore functions: */
shintamainjp 0:521ba375aa0f 128
shintamainjp 0:521ba375aa0f 129 /** Create a new semaphore
shintamainjp 0:521ba375aa0f 130 * @param sem pointer to the semaphore to create
shintamainjp 0:521ba375aa0f 131 * @param count initial count of the semaphore
shintamainjp 0:521ba375aa0f 132 * @return ERR_OK if successful, another err_t otherwise */
shintamainjp 0:521ba375aa0f 133 err_t sys_sem_new(sys_sem_t *sem, u8_t count);
shintamainjp 0:521ba375aa0f 134 /** Signals a semaphore
shintamainjp 0:521ba375aa0f 135 * @param sem the semaphore to signal */
shintamainjp 0:521ba375aa0f 136 void sys_sem_signal(sys_sem_t *sem);
shintamainjp 0:521ba375aa0f 137 /** Wait for a semaphore for the specified timeout
shintamainjp 0:521ba375aa0f 138 * @param sem the semaphore to wait for
shintamainjp 0:521ba375aa0f 139 * @param timeout timeout in milliseconds to wait (0 = wait forever)
shintamainjp 0:521ba375aa0f 140 * @return time (in milliseconds) waited for the semaphore
shintamainjp 0:521ba375aa0f 141 * or SYS_ARCH_TIMEOUT on timeout */
shintamainjp 0:521ba375aa0f 142 u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout);
shintamainjp 0:521ba375aa0f 143 /** Delete a semaphore
shintamainjp 0:521ba375aa0f 144 * @param sem semaphore to delete */
shintamainjp 0:521ba375aa0f 145 void sys_sem_free(sys_sem_t *sem);
shintamainjp 0:521ba375aa0f 146 /** Wait for a semaphore - forever/no timeout */
shintamainjp 0:521ba375aa0f 147 #define sys_sem_wait(sem) sys_arch_sem_wait(sem, 0)
shintamainjp 0:521ba375aa0f 148 #ifndef sys_sem_valid
shintamainjp 0:521ba375aa0f 149 /** Check if a sempahore is valid/allocated: return 1 for valid, 0 for invalid */
shintamainjp 0:521ba375aa0f 150 int sys_sem_valid(sys_sem_t *sem);
shintamainjp 0:521ba375aa0f 151 #endif
shintamainjp 0:521ba375aa0f 152 #ifndef sys_sem_set_invalid
shintamainjp 0:521ba375aa0f 153 /** Set a semaphore invalid so that sys_sem_valid returns 0 */
shintamainjp 0:521ba375aa0f 154 void sys_sem_set_invalid(sys_sem_t *sem);
shintamainjp 0:521ba375aa0f 155 #endif
shintamainjp 0:521ba375aa0f 156
shintamainjp 0:521ba375aa0f 157 /* Time functions. */
shintamainjp 0:521ba375aa0f 158 #ifndef sys_msleep
shintamainjp 0:521ba375aa0f 159 void sys_msleep(u32_t ms); /* only has a (close to) 1 jiffy resolution. */
shintamainjp 0:521ba375aa0f 160 #endif
shintamainjp 0:521ba375aa0f 161
shintamainjp 0:521ba375aa0f 162 /* Mailbox functions. */
shintamainjp 0:521ba375aa0f 163
shintamainjp 0:521ba375aa0f 164 /** Create a new mbox of specified size
shintamainjp 0:521ba375aa0f 165 * @param mbox pointer to the mbox to create
shintamainjp 0:521ba375aa0f 166 * @param size (miminum) number of messages in this mbox
shintamainjp 0:521ba375aa0f 167 * @return ERR_OK if successful, another err_t otherwise */
shintamainjp 0:521ba375aa0f 168 err_t sys_mbox_new(sys_mbox_t *mbox, int size);
shintamainjp 0:521ba375aa0f 169 /** Post a message to an mbox - may not fail
shintamainjp 0:521ba375aa0f 170 * -> blocks if full, only used from tasks not from ISR
shintamainjp 0:521ba375aa0f 171 * @param mbox mbox to posts the message
shintamainjp 0:521ba375aa0f 172 * @param msg message to post (ATTENTION: can be NULL) */
shintamainjp 0:521ba375aa0f 173 void sys_mbox_post(sys_mbox_t *mbox, void *msg);
shintamainjp 0:521ba375aa0f 174 /** Try to post a message to an mbox - may fail if full or ISR
shintamainjp 0:521ba375aa0f 175 * @param mbox mbox to posts the message
shintamainjp 0:521ba375aa0f 176 * @param msg message to post (ATTENTION: can be NULL) */
shintamainjp 0:521ba375aa0f 177 err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg);
shintamainjp 0:521ba375aa0f 178 /** Wait for a new message to arrive in the mbox
shintamainjp 0:521ba375aa0f 179 * @param mbox mbox to get a message from
shintamainjp 0:521ba375aa0f 180 * @param msg pointer where the message is stored
shintamainjp 0:521ba375aa0f 181 * @param timeout maximum time (in milliseconds) to wait for a message
shintamainjp 0:521ba375aa0f 182 * @return time (in milliseconds) waited for a message, may be 0 if not waited
shintamainjp 0:521ba375aa0f 183 or SYS_ARCH_TIMEOUT on timeout
shintamainjp 0:521ba375aa0f 184 * The returned time has to be accurate to prevent timer jitter! */
shintamainjp 0:521ba375aa0f 185 u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout);
shintamainjp 0:521ba375aa0f 186 /* Allow port to override with a macro, e.g. special timout for sys_arch_mbox_fetch() */
shintamainjp 0:521ba375aa0f 187 #ifndef sys_arch_mbox_tryfetch
shintamainjp 0:521ba375aa0f 188 /** Wait for a new message to arrive in the mbox
shintamainjp 0:521ba375aa0f 189 * @param mbox mbox to get a message from
shintamainjp 0:521ba375aa0f 190 * @param msg pointer where the message is stored
shintamainjp 0:521ba375aa0f 191 * @param timeout maximum time (in milliseconds) to wait for a message
shintamainjp 0:521ba375aa0f 192 * @return 0 (milliseconds) if a message has been received
shintamainjp 0:521ba375aa0f 193 * or SYS_MBOX_EMPTY if the mailbox is empty */
shintamainjp 0:521ba375aa0f 194 u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg);
shintamainjp 0:521ba375aa0f 195 #endif
shintamainjp 0:521ba375aa0f 196 /** For now, we map straight to sys_arch implementation. */
shintamainjp 0:521ba375aa0f 197 #define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg)
shintamainjp 0:521ba375aa0f 198 /** Delete an mbox
shintamainjp 0:521ba375aa0f 199 * @param mbox mbox to delete */
shintamainjp 0:521ba375aa0f 200 void sys_mbox_free(sys_mbox_t *mbox);
shintamainjp 0:521ba375aa0f 201 #define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0)
shintamainjp 0:521ba375aa0f 202 #ifndef sys_mbox_valid
shintamainjp 0:521ba375aa0f 203 /** Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid */
shintamainjp 0:521ba375aa0f 204 int sys_mbox_valid(sys_mbox_t *mbox);
shintamainjp 0:521ba375aa0f 205 #endif
shintamainjp 0:521ba375aa0f 206 #ifndef sys_mbox_set_invalid
shintamainjp 0:521ba375aa0f 207 /** Set an mbox invalid so that sys_mbox_valid returns 0 */
shintamainjp 0:521ba375aa0f 208 void sys_mbox_set_invalid(sys_mbox_t *mbox);
shintamainjp 0:521ba375aa0f 209 #endif
shintamainjp 0:521ba375aa0f 210
shintamainjp 0:521ba375aa0f 211 /** The only thread function:
shintamainjp 0:521ba375aa0f 212 * Creates a new thread
shintamainjp 0:521ba375aa0f 213 * @param name human-readable name for the thread (used for debugging purposes)
shintamainjp 0:521ba375aa0f 214 * @param thread thread-function
shintamainjp 0:521ba375aa0f 215 * @param arg parameter passed to 'thread'
shintamainjp 0:521ba375aa0f 216 * @param stacksize stack size in bytes for the new thread (may be ignored by ports)
shintamainjp 0:521ba375aa0f 217 * @param prio priority of the new thread (may be ignored by ports) */
shintamainjp 0:521ba375aa0f 218 sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio);
shintamainjp 0:521ba375aa0f 219
shintamainjp 0:521ba375aa0f 220 #endif /* NO_SYS */
shintamainjp 0:521ba375aa0f 221
shintamainjp 0:521ba375aa0f 222 /* sys_init() must be called before anthing else. */
shintamainjp 0:521ba375aa0f 223 void sys_init(void);
shintamainjp 0:521ba375aa0f 224
shintamainjp 0:521ba375aa0f 225 #ifndef sys_jiffies
shintamainjp 0:521ba375aa0f 226 /** Ticks/jiffies since power up. */
shintamainjp 0:521ba375aa0f 227 u32_t sys_jiffies(void);
shintamainjp 0:521ba375aa0f 228 #endif
shintamainjp 0:521ba375aa0f 229
shintamainjp 0:521ba375aa0f 230 /** Returns the current time in milliseconds,
shintamainjp 0:521ba375aa0f 231 * may be the same as sys_jiffies or at least based on it. */
shintamainjp 0:521ba375aa0f 232 u32_t sys_now(void);
shintamainjp 0:521ba375aa0f 233
shintamainjp 0:521ba375aa0f 234 /* Critical Region Protection */
shintamainjp 0:521ba375aa0f 235 /* These functions must be implemented in the sys_arch.c file.
shintamainjp 0:521ba375aa0f 236 In some implementations they can provide a more light-weight protection
shintamainjp 0:521ba375aa0f 237 mechanism than using semaphores. Otherwise semaphores can be used for
shintamainjp 0:521ba375aa0f 238 implementation */
shintamainjp 0:521ba375aa0f 239 #ifndef SYS_ARCH_PROTECT
shintamainjp 0:521ba375aa0f 240 /** SYS_LIGHTWEIGHT_PROT
shintamainjp 0:521ba375aa0f 241 * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
shintamainjp 0:521ba375aa0f 242 * for certain critical regions during buffer allocation, deallocation and memory
shintamainjp 0:521ba375aa0f 243 * allocation and deallocation.
shintamainjp 0:521ba375aa0f 244 */
shintamainjp 0:521ba375aa0f 245 #if SYS_LIGHTWEIGHT_PROT
shintamainjp 0:521ba375aa0f 246
shintamainjp 0:521ba375aa0f 247 /** SYS_ARCH_DECL_PROTECT
shintamainjp 0:521ba375aa0f 248 * declare a protection variable. This macro will default to defining a variable of
shintamainjp 0:521ba375aa0f 249 * type sys_prot_t. If a particular port needs a different implementation, then
shintamainjp 0:521ba375aa0f 250 * this macro may be defined in sys_arch.h.
shintamainjp 0:521ba375aa0f 251 */
shintamainjp 0:521ba375aa0f 252 #define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev
shintamainjp 0:521ba375aa0f 253 /** SYS_ARCH_PROTECT
shintamainjp 0:521ba375aa0f 254 * Perform a "fast" protect. This could be implemented by
shintamainjp 0:521ba375aa0f 255 * disabling interrupts for an embedded system or by using a semaphore or
shintamainjp 0:521ba375aa0f 256 * mutex. The implementation should allow calling SYS_ARCH_PROTECT when
shintamainjp 0:521ba375aa0f 257 * already protected. The old protection level is returned in the variable
shintamainjp 0:521ba375aa0f 258 * "lev". This macro will default to calling the sys_arch_protect() function
shintamainjp 0:521ba375aa0f 259 * which should be implemented in sys_arch.c. If a particular port needs a
shintamainjp 0:521ba375aa0f 260 * different implementation, then this macro may be defined in sys_arch.h
shintamainjp 0:521ba375aa0f 261 */
shintamainjp 0:521ba375aa0f 262 #define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect()
shintamainjp 0:521ba375aa0f 263 /** SYS_ARCH_UNPROTECT
shintamainjp 0:521ba375aa0f 264 * Perform a "fast" set of the protection level to "lev". This could be
shintamainjp 0:521ba375aa0f 265 * implemented by setting the interrupt level to "lev" within the MACRO or by
shintamainjp 0:521ba375aa0f 266 * using a semaphore or mutex. This macro will default to calling the
shintamainjp 0:521ba375aa0f 267 * sys_arch_unprotect() function which should be implemented in
shintamainjp 0:521ba375aa0f 268 * sys_arch.c. If a particular port needs a different implementation, then
shintamainjp 0:521ba375aa0f 269 * this macro may be defined in sys_arch.h
shintamainjp 0:521ba375aa0f 270 */
shintamainjp 0:521ba375aa0f 271 #define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev)
shintamainjp 0:521ba375aa0f 272 sys_prot_t sys_arch_protect(void);
shintamainjp 0:521ba375aa0f 273 void sys_arch_unprotect(sys_prot_t pval);
shintamainjp 0:521ba375aa0f 274
shintamainjp 0:521ba375aa0f 275 #else
shintamainjp 0:521ba375aa0f 276
shintamainjp 0:521ba375aa0f 277 #define SYS_ARCH_DECL_PROTECT(lev)
shintamainjp 0:521ba375aa0f 278 #define SYS_ARCH_PROTECT(lev)
shintamainjp 0:521ba375aa0f 279 #define SYS_ARCH_UNPROTECT(lev)
shintamainjp 0:521ba375aa0f 280
shintamainjp 0:521ba375aa0f 281 #endif /* SYS_LIGHTWEIGHT_PROT */
shintamainjp 0:521ba375aa0f 282
shintamainjp 0:521ba375aa0f 283 #endif /* SYS_ARCH_PROTECT */
shintamainjp 0:521ba375aa0f 284
shintamainjp 0:521ba375aa0f 285 /*
shintamainjp 0:521ba375aa0f 286 * Macros to set/get and increase/decrease variables in a thread-safe way.
shintamainjp 0:521ba375aa0f 287 * Use these for accessing variable that are used from more than one thread.
shintamainjp 0:521ba375aa0f 288 */
shintamainjp 0:521ba375aa0f 289
shintamainjp 0:521ba375aa0f 290 #ifndef SYS_ARCH_INC
shintamainjp 0:521ba375aa0f 291 #define SYS_ARCH_INC(var, val) do { \
shintamainjp 0:521ba375aa0f 292 SYS_ARCH_DECL_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 293 SYS_ARCH_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 294 var += val; \
shintamainjp 0:521ba375aa0f 295 SYS_ARCH_UNPROTECT(old_level); \
shintamainjp 0:521ba375aa0f 296 } while(0)
shintamainjp 0:521ba375aa0f 297 #endif /* SYS_ARCH_INC */
shintamainjp 0:521ba375aa0f 298
shintamainjp 0:521ba375aa0f 299 #ifndef SYS_ARCH_DEC
shintamainjp 0:521ba375aa0f 300 #define SYS_ARCH_DEC(var, val) do { \
shintamainjp 0:521ba375aa0f 301 SYS_ARCH_DECL_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 302 SYS_ARCH_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 303 var -= val; \
shintamainjp 0:521ba375aa0f 304 SYS_ARCH_UNPROTECT(old_level); \
shintamainjp 0:521ba375aa0f 305 } while(0)
shintamainjp 0:521ba375aa0f 306 #endif /* SYS_ARCH_DEC */
shintamainjp 0:521ba375aa0f 307
shintamainjp 0:521ba375aa0f 308 #ifndef SYS_ARCH_GET
shintamainjp 0:521ba375aa0f 309 #define SYS_ARCH_GET(var, ret) do { \
shintamainjp 0:521ba375aa0f 310 SYS_ARCH_DECL_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 311 SYS_ARCH_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 312 ret = var; \
shintamainjp 0:521ba375aa0f 313 SYS_ARCH_UNPROTECT(old_level); \
shintamainjp 0:521ba375aa0f 314 } while(0)
shintamainjp 0:521ba375aa0f 315 #endif /* SYS_ARCH_GET */
shintamainjp 0:521ba375aa0f 316
shintamainjp 0:521ba375aa0f 317 #ifndef SYS_ARCH_SET
shintamainjp 0:521ba375aa0f 318 #define SYS_ARCH_SET(var, val) do { \
shintamainjp 0:521ba375aa0f 319 SYS_ARCH_DECL_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 320 SYS_ARCH_PROTECT(old_level); \
shintamainjp 0:521ba375aa0f 321 var = val; \
shintamainjp 0:521ba375aa0f 322 SYS_ARCH_UNPROTECT(old_level); \
shintamainjp 0:521ba375aa0f 323 } while(0)
shintamainjp 0:521ba375aa0f 324 #endif /* SYS_ARCH_SET */
shintamainjp 0:521ba375aa0f 325
shintamainjp 0:521ba375aa0f 326
shintamainjp 0:521ba375aa0f 327 #ifdef __cplusplus
shintamainjp 0:521ba375aa0f 328 }
shintamainjp 0:521ba375aa0f 329 #endif
shintamainjp 0:521ba375aa0f 330
shintamainjp 0:521ba375aa0f 331 #endif /* __LWIP_SYS_H__ */