The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/tslog.h

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    1 /*-
    2  * Copyright (c) 2017 Colin Percival
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  *
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: head/sys/sys/tslog.h 327447 2017-12-31 21:00:21Z cperciva $
   27  */
   28 
   29 #ifndef _TSLOG_H_
   30 #define _TSLOG_H_
   31 
   32 #ifdef TSLOG
   33 #include <sys/_types.h>
   34 #include <sys/pcpu.h>
   35 #endif
   36 
   37 #define TS_ENTER        0
   38 #define TS_EXIT         1
   39 #define TS_THREAD       2
   40 #define TS_EVENT        3
   41 
   42 #define TSENTER() TSRAW(curthread, TS_ENTER, __func__, NULL)
   43 #define TSENTER2(x) TSRAW(curthread, TS_ENTER, __func__, x)
   44 #define TSEXIT() TSRAW(curthread, TS_EXIT, __func__, NULL)
   45 #define TSEXIT2(x) TSRAW(curthread, TS_EXIT, __func__, x)
   46 #define TSTHREAD(td, x) TSRAW(td, TS_THREAD, x, NULL)
   47 #define TSEVENT(x) TSRAW(curthread, TS_EVENT, x, NULL)
   48 #define TSEVENT2(x, y) TSRAW(curthread, TS_EVENT, x, y)
   49 #define TSLINE() TSEVENT2(__FILE__, __XSTRING(__LINE__))
   50 #define TSWAIT(x) TSEVENT2("WAIT", x);
   51 #define TSUNWAIT(x) TSEVENT2("UNWAIT", x);
   52 #define TSHOLD(x) TSEVENT2("HOLD", x);
   53 #define TSRELEASE(x) TSEVENT2("RELEASE", x);
   54 
   55 #ifdef TSLOG
   56 #define TSRAW(a, b, c, d) tslog(a, b, c, d)
   57 void tslog(void *, int, const char *, const char *);
   58 #else
   59 #define TSRAW(a, b, c, d)               /* Timestamp logging disabled */
   60 #endif
   61 
   62 #endif /* _TSLOG_H_ */

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