Michiel Berckvens / Mbed 2 deprecated ProjectHTTP

Dependencies:   DS1307 TextLCD mbed

Committer:
Michielber
Date:
Thu Dec 11 16:07:34 2014 +0000
Revision:
5:6878defcfeb9
Parent:
0:f615d151a72c
Project updated belastingslijn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Michielber 0:f615d151a72c 1 /*
Michielber 0:f615d151a72c 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
Michielber 0:f615d151a72c 3 * All rights reserved.
Michielber 0:f615d151a72c 4 *
Michielber 0:f615d151a72c 5 * Redistribution and use in source and binary forms, with or without modification,
Michielber 0:f615d151a72c 6 * are permitted provided that the following conditions are met:
Michielber 0:f615d151a72c 7 *
Michielber 0:f615d151a72c 8 * 1. Redistributions of source code must retain the above copyright notice,
Michielber 0:f615d151a72c 9 * this list of conditions and the following disclaimer.
Michielber 0:f615d151a72c 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
Michielber 0:f615d151a72c 11 * this list of conditions and the following disclaimer in the documentation
Michielber 0:f615d151a72c 12 * and/or other materials provided with the distribution.
Michielber 0:f615d151a72c 13 * 3. The name of the author may not be used to endorse or promote products
Michielber 0:f615d151a72c 14 * derived from this software without specific prior written permission.
Michielber 0:f615d151a72c 15 *
Michielber 0:f615d151a72c 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
Michielber 0:f615d151a72c 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Michielber 0:f615d151a72c 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
Michielber 0:f615d151a72c 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Michielber 0:f615d151a72c 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
Michielber 0:f615d151a72c 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Michielber 0:f615d151a72c 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Michielber 0:f615d151a72c 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
Michielber 0:f615d151a72c 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
Michielber 0:f615d151a72c 25 * OF SUCH DAMAGE.
Michielber 0:f615d151a72c 26 *
Michielber 0:f615d151a72c 27 * This file is part of the lwIP TCP/IP stack.
Michielber 0:f615d151a72c 28 *
Michielber 0:f615d151a72c 29 * Author: Adam Dunkels <adam@sics.se>
Michielber 0:f615d151a72c 30 *
Michielber 0:f615d151a72c 31 */
Michielber 0:f615d151a72c 32 #ifndef __LWIP_SYS_H__
Michielber 0:f615d151a72c 33 #define __LWIP_SYS_H__
Michielber 0:f615d151a72c 34
Michielber 0:f615d151a72c 35 #include "lwip/opt.h"
Michielber 0:f615d151a72c 36
Michielber 0:f615d151a72c 37 #ifdef __cplusplus
Michielber 0:f615d151a72c 38 extern "C" {
Michielber 0:f615d151a72c 39 #endif
Michielber 0:f615d151a72c 40
Michielber 0:f615d151a72c 41 #if NO_SYS
Michielber 0:f615d151a72c 42
Michielber 0:f615d151a72c 43 /* For a totally minimal and standalone system, we provide null
Michielber 0:f615d151a72c 44 definitions of the sys_ functions. */
Michielber 0:f615d151a72c 45 typedef u8_t sys_sem_t;
Michielber 0:f615d151a72c 46 typedef u8_t sys_mutex_t;
Michielber 0:f615d151a72c 47 typedef u8_t sys_mbox_t;
Michielber 0:f615d151a72c 48
Michielber 0:f615d151a72c 49 #define sys_sem_new(s, c) ERR_OK
Michielber 0:f615d151a72c 50 #define sys_sem_signal(s)
Michielber 0:f615d151a72c 51 #define sys_sem_wait(s)
Michielber 0:f615d151a72c 52 #define sys_arch_sem_wait(s,t)
Michielber 0:f615d151a72c 53 #define sys_sem_free(s)
Michielber 0:f615d151a72c 54 #define sys_mutex_new(mu) ERR_OK
Michielber 0:f615d151a72c 55 #define sys_mutex_lock(mu)
Michielber 0:f615d151a72c 56 #define sys_mutex_unlock(mu)
Michielber 0:f615d151a72c 57 #define sys_mutex_free(mu)
Michielber 0:f615d151a72c 58 #define sys_mbox_new(m, s) ERR_OK
Michielber 0:f615d151a72c 59 #define sys_mbox_fetch(m,d)
Michielber 0:f615d151a72c 60 #define sys_mbox_tryfetch(m,d)
Michielber 0:f615d151a72c 61 #define sys_mbox_post(m,d)
Michielber 0:f615d151a72c 62 #define sys_mbox_trypost(m,d)
Michielber 0:f615d151a72c 63 #define sys_mbox_free(m)
Michielber 0:f615d151a72c 64
Michielber 0:f615d151a72c 65 #define sys_thread_new(n,t,a,s,p)
Michielber 0:f615d151a72c 66
Michielber 0:f615d151a72c 67 #define sys_msleep(t)
Michielber 0:f615d151a72c 68
Michielber 0:f615d151a72c 69 #else /* NO_SYS */
Michielber 0:f615d151a72c 70
Michielber 0:f615d151a72c 71 /** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */
Michielber 0:f615d151a72c 72 #define SYS_ARCH_TIMEOUT 0xffffffffUL
Michielber 0:f615d151a72c 73
Michielber 0:f615d151a72c 74 /** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate.
Michielber 0:f615d151a72c 75 * For now we use the same magic value, but we allow this to change in future.
Michielber 0:f615d151a72c 76 */
Michielber 0:f615d151a72c 77 #define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT
Michielber 0:f615d151a72c 78
Michielber 0:f615d151a72c 79 #include "lwip/err.h"
Michielber 0:f615d151a72c 80 #include "arch/sys_arch.h"
Michielber 0:f615d151a72c 81
Michielber 0:f615d151a72c 82 /** Function prototype for thread functions */
Michielber 0:f615d151a72c 83 typedef void (*lwip_thread_fn)(void *arg);
Michielber 0:f615d151a72c 84
Michielber 0:f615d151a72c 85 /* Function prototypes for functions to be implemented by platform ports
Michielber 0:f615d151a72c 86 (in sys_arch.c) */
Michielber 0:f615d151a72c 87
Michielber 0:f615d151a72c 88 /* Mutex functions: */
Michielber 0:f615d151a72c 89
Michielber 0:f615d151a72c 90 /** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores
Michielber 0:f615d151a72c 91 should be used instead */
Michielber 0:f615d151a72c 92 #if LWIP_COMPAT_MUTEX
Michielber 0:f615d151a72c 93 /* for old ports that don't have mutexes: define them to binary semaphores */
Michielber 0:f615d151a72c 94 #define sys_mutex_t sys_sem_t
Michielber 0:f615d151a72c 95 #define sys_mutex_new(mutex) sys_sem_new(mutex, 1)
Michielber 0:f615d151a72c 96 #define sys_mutex_lock(mutex) sys_sem_wait(mutex)
Michielber 0:f615d151a72c 97 #define sys_mutex_unlock(mutex) sys_sem_signal(mutex)
Michielber 0:f615d151a72c 98 #define sys_mutex_free(mutex) sys_sem_free(mutex)
Michielber 0:f615d151a72c 99 #define sys_mutex_valid(mutex) sys_sem_valid(mutex)
Michielber 0:f615d151a72c 100 #define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex)
Michielber 0:f615d151a72c 101
Michielber 0:f615d151a72c 102 #else /* LWIP_COMPAT_MUTEX */
Michielber 0:f615d151a72c 103
Michielber 0:f615d151a72c 104 /** Create a new mutex
Michielber 0:f615d151a72c 105 * @param mutex pointer to the mutex to create
Michielber 0:f615d151a72c 106 * @return a new mutex */
Michielber 0:f615d151a72c 107 err_t sys_mutex_new(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 108 /** Lock a mutex
Michielber 0:f615d151a72c 109 * @param mutex the mutex to lock */
Michielber 0:f615d151a72c 110 void sys_mutex_lock(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 111 /** Unlock a mutex
Michielber 0:f615d151a72c 112 * @param mutex the mutex to unlock */
Michielber 0:f615d151a72c 113 void sys_mutex_unlock(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 114 /** Delete a semaphore
Michielber 0:f615d151a72c 115 * @param mutex the mutex to delete */
Michielber 0:f615d151a72c 116 void sys_mutex_free(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 117 #ifndef sys_mutex_valid
Michielber 0:f615d151a72c 118 /** Check if a mutex is valid/allocated: return 1 for valid, 0 for invalid */
Michielber 0:f615d151a72c 119 int sys_mutex_valid(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 120 #endif
Michielber 0:f615d151a72c 121 #ifndef sys_mutex_set_invalid
Michielber 0:f615d151a72c 122 /** Set a mutex invalid so that sys_mutex_valid returns 0 */
Michielber 0:f615d151a72c 123 void sys_mutex_set_invalid(sys_mutex_t *mutex);
Michielber 0:f615d151a72c 124 #endif
Michielber 0:f615d151a72c 125 #endif /* LWIP_COMPAT_MUTEX */
Michielber 0:f615d151a72c 126
Michielber 0:f615d151a72c 127 /* Semaphore functions: */
Michielber 0:f615d151a72c 128
Michielber 0:f615d151a72c 129 /** Create a new semaphore
Michielber 0:f615d151a72c 130 * @param sem pointer to the semaphore to create
Michielber 0:f615d151a72c 131 * @param count initial count of the semaphore
Michielber 0:f615d151a72c 132 * @return ERR_OK if successful, another err_t otherwise */
Michielber 0:f615d151a72c 133 err_t sys_sem_new(sys_sem_t *sem, u8_t count);
Michielber 0:f615d151a72c 134 /** Signals a semaphore
Michielber 0:f615d151a72c 135 * @param sem the semaphore to signal */
Michielber 0:f615d151a72c 136 void sys_sem_signal(sys_sem_t *sem);
Michielber 0:f615d151a72c 137 /** Wait for a semaphore for the specified timeout
Michielber 0:f615d151a72c 138 * @param sem the semaphore to wait for
Michielber 0:f615d151a72c 139 * @param timeout timeout in milliseconds to wait (0 = wait forever)
Michielber 0:f615d151a72c 140 * @return time (in milliseconds) waited for the semaphore
Michielber 0:f615d151a72c 141 * or SYS_ARCH_TIMEOUT on timeout */
Michielber 0:f615d151a72c 142 u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout);
Michielber 0:f615d151a72c 143 /** Delete a semaphore
Michielber 0:f615d151a72c 144 * @param sem semaphore to delete */
Michielber 0:f615d151a72c 145 void sys_sem_free(sys_sem_t *sem);
Michielber 0:f615d151a72c 146 /** Wait for a semaphore - forever/no timeout */
Michielber 0:f615d151a72c 147 #define sys_sem_wait(sem) sys_arch_sem_wait(sem, 0)
Michielber 0:f615d151a72c 148 #ifndef sys_sem_valid
Michielber 0:f615d151a72c 149 /** Check if a sempahore is valid/allocated: return 1 for valid, 0 for invalid */
Michielber 0:f615d151a72c 150 int sys_sem_valid(sys_sem_t *sem);
Michielber 0:f615d151a72c 151 #endif
Michielber 0:f615d151a72c 152 #ifndef sys_sem_set_invalid
Michielber 0:f615d151a72c 153 /** Set a semaphore invalid so that sys_sem_valid returns 0 */
Michielber 0:f615d151a72c 154 void sys_sem_set_invalid(sys_sem_t *sem);
Michielber 0:f615d151a72c 155 #endif
Michielber 0:f615d151a72c 156
Michielber 0:f615d151a72c 157 /* Time functions. */
Michielber 0:f615d151a72c 158 #ifndef sys_msleep
Michielber 0:f615d151a72c 159 void sys_msleep(u32_t ms); /* only has a (close to) 1 jiffy resolution. */
Michielber 0:f615d151a72c 160 #endif
Michielber 0:f615d151a72c 161
Michielber 0:f615d151a72c 162 /* Mailbox functions. */
Michielber 0:f615d151a72c 163
Michielber 0:f615d151a72c 164 /** Create a new mbox of specified size
Michielber 0:f615d151a72c 165 * @param mbox pointer to the mbox to create
Michielber 0:f615d151a72c 166 * @param size (miminum) number of messages in this mbox
Michielber 0:f615d151a72c 167 * @return ERR_OK if successful, another err_t otherwise */
Michielber 0:f615d151a72c 168 err_t sys_mbox_new(sys_mbox_t *mbox, int size);
Michielber 0:f615d151a72c 169 /** Post a message to an mbox - may not fail
Michielber 0:f615d151a72c 170 * -> blocks if full, only used from tasks not from ISR
Michielber 0:f615d151a72c 171 * @param mbox mbox to posts the message
Michielber 0:f615d151a72c 172 * @param msg message to post (ATTENTION: can be NULL) */
Michielber 0:f615d151a72c 173 void sys_mbox_post(sys_mbox_t *mbox, void *msg);
Michielber 0:f615d151a72c 174 /** Try to post a message to an mbox - may fail if full or ISR
Michielber 0:f615d151a72c 175 * @param mbox mbox to posts the message
Michielber 0:f615d151a72c 176 * @param msg message to post (ATTENTION: can be NULL) */
Michielber 0:f615d151a72c 177 err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg);
Michielber 0:f615d151a72c 178 /** Wait for a new message to arrive in the mbox
Michielber 0:f615d151a72c 179 * @param mbox mbox to get a message from
Michielber 0:f615d151a72c 180 * @param msg pointer where the message is stored
Michielber 0:f615d151a72c 181 * @param timeout maximum time (in milliseconds) to wait for a message
Michielber 0:f615d151a72c 182 * @return time (in milliseconds) waited for a message, may be 0 if not waited
Michielber 0:f615d151a72c 183 or SYS_ARCH_TIMEOUT on timeout
Michielber 0:f615d151a72c 184 * The returned time has to be accurate to prevent timer jitter! */
Michielber 0:f615d151a72c 185 u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout);
Michielber 0:f615d151a72c 186 /* Allow port to override with a macro, e.g. special timout for sys_arch_mbox_fetch() */
Michielber 0:f615d151a72c 187 #ifndef sys_arch_mbox_tryfetch
Michielber 0:f615d151a72c 188 /** Wait for a new message to arrive in the mbox
Michielber 0:f615d151a72c 189 * @param mbox mbox to get a message from
Michielber 0:f615d151a72c 190 * @param msg pointer where the message is stored
Michielber 0:f615d151a72c 191 * @param timeout maximum time (in milliseconds) to wait for a message
Michielber 0:f615d151a72c 192 * @return 0 (milliseconds) if a message has been received
Michielber 0:f615d151a72c 193 * or SYS_MBOX_EMPTY if the mailbox is empty */
Michielber 0:f615d151a72c 194 u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg);
Michielber 0:f615d151a72c 195 #endif
Michielber 0:f615d151a72c 196 /** For now, we map straight to sys_arch implementation. */
Michielber 0:f615d151a72c 197 #define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg)
Michielber 0:f615d151a72c 198 /** Delete an mbox
Michielber 0:f615d151a72c 199 * @param mbox mbox to delete */
Michielber 0:f615d151a72c 200 void sys_mbox_free(sys_mbox_t *mbox);
Michielber 0:f615d151a72c 201 #define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0)
Michielber 0:f615d151a72c 202 #ifndef sys_mbox_valid
Michielber 0:f615d151a72c 203 /** Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid */
Michielber 0:f615d151a72c 204 int sys_mbox_valid(sys_mbox_t *mbox);
Michielber 0:f615d151a72c 205 #endif
Michielber 0:f615d151a72c 206 #ifndef sys_mbox_set_invalid
Michielber 0:f615d151a72c 207 /** Set an mbox invalid so that sys_mbox_valid returns 0 */
Michielber 0:f615d151a72c 208 void sys_mbox_set_invalid(sys_mbox_t *mbox);
Michielber 0:f615d151a72c 209 #endif
Michielber 0:f615d151a72c 210
Michielber 0:f615d151a72c 211 /** The only thread function:
Michielber 0:f615d151a72c 212 * Creates a new thread
Michielber 0:f615d151a72c 213 * @param name human-readable name for the thread (used for debugging purposes)
Michielber 0:f615d151a72c 214 * @param thread thread-function
Michielber 0:f615d151a72c 215 * @param arg parameter passed to 'thread'
Michielber 0:f615d151a72c 216 * @param stacksize stack size in bytes for the new thread (may be ignored by ports)
Michielber 0:f615d151a72c 217 * @param prio priority of the new thread (may be ignored by ports) */
Michielber 0:f615d151a72c 218 sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio);
Michielber 0:f615d151a72c 219
Michielber 0:f615d151a72c 220 #endif /* NO_SYS */
Michielber 0:f615d151a72c 221
Michielber 0:f615d151a72c 222 /* sys_init() must be called before anthing else. */
Michielber 0:f615d151a72c 223 void sys_init(void);
Michielber 0:f615d151a72c 224
Michielber 0:f615d151a72c 225 #ifndef sys_jiffies
Michielber 0:f615d151a72c 226 /** Ticks/jiffies since power up. */
Michielber 0:f615d151a72c 227 u32_t sys_jiffies(void);
Michielber 0:f615d151a72c 228 #endif
Michielber 0:f615d151a72c 229
Michielber 0:f615d151a72c 230 /** Returns the current time in milliseconds,
Michielber 0:f615d151a72c 231 * may be the same as sys_jiffies or at least based on it. */
Michielber 0:f615d151a72c 232 u32_t sys_now(void);
Michielber 0:f615d151a72c 233
Michielber 0:f615d151a72c 234 /* Critical Region Protection */
Michielber 0:f615d151a72c 235 /* These functions must be implemented in the sys_arch.c file.
Michielber 0:f615d151a72c 236 In some implementations they can provide a more light-weight protection
Michielber 0:f615d151a72c 237 mechanism than using semaphores. Otherwise semaphores can be used for
Michielber 0:f615d151a72c 238 implementation */
Michielber 0:f615d151a72c 239 #ifndef SYS_ARCH_PROTECT
Michielber 0:f615d151a72c 240 /** SYS_LIGHTWEIGHT_PROT
Michielber 0:f615d151a72c 241 * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
Michielber 0:f615d151a72c 242 * for certain critical regions during buffer allocation, deallocation and memory
Michielber 0:f615d151a72c 243 * allocation and deallocation.
Michielber 0:f615d151a72c 244 */
Michielber 0:f615d151a72c 245 #if SYS_LIGHTWEIGHT_PROT
Michielber 0:f615d151a72c 246
Michielber 0:f615d151a72c 247 /** SYS_ARCH_DECL_PROTECT
Michielber 0:f615d151a72c 248 * declare a protection variable. This macro will default to defining a variable of
Michielber 0:f615d151a72c 249 * type sys_prot_t. If a particular port needs a different implementation, then
Michielber 0:f615d151a72c 250 * this macro may be defined in sys_arch.h.
Michielber 0:f615d151a72c 251 */
Michielber 0:f615d151a72c 252 #define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev
Michielber 0:f615d151a72c 253 /** SYS_ARCH_PROTECT
Michielber 0:f615d151a72c 254 * Perform a "fast" protect. This could be implemented by
Michielber 0:f615d151a72c 255 * disabling interrupts for an embedded system or by using a semaphore or
Michielber 0:f615d151a72c 256 * mutex. The implementation should allow calling SYS_ARCH_PROTECT when
Michielber 0:f615d151a72c 257 * already protected. The old protection level is returned in the variable
Michielber 0:f615d151a72c 258 * "lev". This macro will default to calling the sys_arch_protect() function
Michielber 0:f615d151a72c 259 * which should be implemented in sys_arch.c. If a particular port needs a
Michielber 0:f615d151a72c 260 * different implementation, then this macro may be defined in sys_arch.h
Michielber 0:f615d151a72c 261 */
Michielber 0:f615d151a72c 262 #define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect()
Michielber 0:f615d151a72c 263 /** SYS_ARCH_UNPROTECT
Michielber 0:f615d151a72c 264 * Perform a "fast" set of the protection level to "lev". This could be
Michielber 0:f615d151a72c 265 * implemented by setting the interrupt level to "lev" within the MACRO or by
Michielber 0:f615d151a72c 266 * using a semaphore or mutex. This macro will default to calling the
Michielber 0:f615d151a72c 267 * sys_arch_unprotect() function which should be implemented in
Michielber 0:f615d151a72c 268 * sys_arch.c. If a particular port needs a different implementation, then
Michielber 0:f615d151a72c 269 * this macro may be defined in sys_arch.h
Michielber 0:f615d151a72c 270 */
Michielber 0:f615d151a72c 271 #define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev)
Michielber 0:f615d151a72c 272 sys_prot_t sys_arch_protect(void);
Michielber 0:f615d151a72c 273 void sys_arch_unprotect(sys_prot_t pval);
Michielber 0:f615d151a72c 274
Michielber 0:f615d151a72c 275 #else
Michielber 0:f615d151a72c 276
Michielber 0:f615d151a72c 277 #define SYS_ARCH_DECL_PROTECT(lev)
Michielber 0:f615d151a72c 278 #define SYS_ARCH_PROTECT(lev)
Michielber 0:f615d151a72c 279 #define SYS_ARCH_UNPROTECT(lev)
Michielber 0:f615d151a72c 280
Michielber 0:f615d151a72c 281 #endif /* SYS_LIGHTWEIGHT_PROT */
Michielber 0:f615d151a72c 282
Michielber 0:f615d151a72c 283 #endif /* SYS_ARCH_PROTECT */
Michielber 0:f615d151a72c 284
Michielber 0:f615d151a72c 285 /*
Michielber 0:f615d151a72c 286 * Macros to set/get and increase/decrease variables in a thread-safe way.
Michielber 0:f615d151a72c 287 * Use these for accessing variable that are used from more than one thread.
Michielber 0:f615d151a72c 288 */
Michielber 0:f615d151a72c 289
Michielber 0:f615d151a72c 290 #ifndef SYS_ARCH_INC
Michielber 0:f615d151a72c 291 #define SYS_ARCH_INC(var, val) do { \
Michielber 0:f615d151a72c 292 SYS_ARCH_DECL_PROTECT(old_level); \
Michielber 0:f615d151a72c 293 SYS_ARCH_PROTECT(old_level); \
Michielber 0:f615d151a72c 294 var += val; \
Michielber 0:f615d151a72c 295 SYS_ARCH_UNPROTECT(old_level); \
Michielber 0:f615d151a72c 296 } while(0)
Michielber 0:f615d151a72c 297 #endif /* SYS_ARCH_INC */
Michielber 0:f615d151a72c 298
Michielber 0:f615d151a72c 299 #ifndef SYS_ARCH_DEC
Michielber 0:f615d151a72c 300 #define SYS_ARCH_DEC(var, val) do { \
Michielber 0:f615d151a72c 301 SYS_ARCH_DECL_PROTECT(old_level); \
Michielber 0:f615d151a72c 302 SYS_ARCH_PROTECT(old_level); \
Michielber 0:f615d151a72c 303 var -= val; \
Michielber 0:f615d151a72c 304 SYS_ARCH_UNPROTECT(old_level); \
Michielber 0:f615d151a72c 305 } while(0)
Michielber 0:f615d151a72c 306 #endif /* SYS_ARCH_DEC */
Michielber 0:f615d151a72c 307
Michielber 0:f615d151a72c 308 #ifndef SYS_ARCH_GET
Michielber 0:f615d151a72c 309 #define SYS_ARCH_GET(var, ret) do { \
Michielber 0:f615d151a72c 310 SYS_ARCH_DECL_PROTECT(old_level); \
Michielber 0:f615d151a72c 311 SYS_ARCH_PROTECT(old_level); \
Michielber 0:f615d151a72c 312 ret = var; \
Michielber 0:f615d151a72c 313 SYS_ARCH_UNPROTECT(old_level); \
Michielber 0:f615d151a72c 314 } while(0)
Michielber 0:f615d151a72c 315 #endif /* SYS_ARCH_GET */
Michielber 0:f615d151a72c 316
Michielber 0:f615d151a72c 317 #ifndef SYS_ARCH_SET
Michielber 0:f615d151a72c 318 #define SYS_ARCH_SET(var, val) do { \
Michielber 0:f615d151a72c 319 SYS_ARCH_DECL_PROTECT(old_level); \
Michielber 0:f615d151a72c 320 SYS_ARCH_PROTECT(old_level); \
Michielber 0:f615d151a72c 321 var = val; \
Michielber 0:f615d151a72c 322 SYS_ARCH_UNPROTECT(old_level); \
Michielber 0:f615d151a72c 323 } while(0)
Michielber 0:f615d151a72c 324 #endif /* SYS_ARCH_SET */
Michielber 0:f615d151a72c 325
Michielber 0:f615d151a72c 326
Michielber 0:f615d151a72c 327 #ifdef __cplusplus
Michielber 0:f615d151a72c 328 }
Michielber 0:f615d151a72c 329 #endif
Michielber 0:f615d151a72c 330
Michielber 0:f615d151a72c 331 #endif /* __LWIP_SYS_H__ */