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