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/*
* Utility macros of ISH
*
* Copyright (c) 2014-2016, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef UTILS__H
#define UTILS__H
#define WAIT_FOR_SEND_SLICE (HZ / 10)
#define WAIT_FOR_CONNECT_SLICE (HZ / 10)
/*
* Waits for specified event when a thread that triggers event can't signal
* Also, waits *at_least* `timeinc` after condition is satisfied
*/
#define timed_wait_for(timeinc, condition) \
do { \
int completed = 0; \
do { \
unsigned long j; \
int done = 0; \
\
completed = (condition); \
for (j = jiffies, done = 0; !done; ) { \
schedule_timeout(timeinc); \
if (time_is_before_eq_jiffies(j + timeinc)) \
done = 1; \
} \
} while (!(completed)); \
} while (0)
/*
* Waits for specified event when a thread that triggers event
* can't signal with timeout (use whenever we may hang)
*/
#define timed_wait_for_timeout(timeinc, condition, timeout) \
do { \
int t = timeout; \
do { \
unsigned long j; \
int done = 0; \
\
for (j = jiffies, done = 0; !done; ) { \
schedule_timeout(timeinc); \
if (time_is_before_eq_jiffies(j + timeinc)) \
done = 1; \
} \
t -= timeinc; \
if (t <= 0) \
break; \
} while (!(condition)); \
} while (0)
#endif /* UTILS__H */
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