1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* PJMEDIA - Multimedia over IP Stack
* (C)2003-2005 Benny Prijono <bennylp@bulukucing.org>
*
* Author:
* Benny Prijono <bennylp@bulukucing.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PA_UNIX_UTIL_H
#define PA_UNIX_UTIL_H
#include "pa_cpuload.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#define PA_MIN(x,y) ( (x) < (y) ? (x) : (y) )
#define PA_MAX(x,y) ( (x) > (y) ? (x) : (y) )
/* Utilize GCC branch prediction for error tests */
#if defined __GNUC__ && __GNUC__ >= 3
#define UNLIKELY(expr) __builtin_expect( (expr), 0 )
#else
#define UNLIKELY(expr) (expr)
#endif
#define STRINGIZE_HELPER(expr) #expr
#define STRINGIZE(expr) STRINGIZE_HELPER(expr)
#define PA_UNLESS(expr, code) \
do { \
if( UNLIKELY( (expr) == 0 ) ) \
{ \
PaUtil_DebugPrint(( "Expression '" #expr "' failed in '" __FILE__ "', line: " STRINGIZE( __LINE__ ) "\n" )); \
result = (code); \
goto error; \
} \
} while (0);
static PaError paUtilErr_; /* Used with PA_ENSURE */
/* Check PaError */
#define PA_ENSURE(expr) \
do { \
if( UNLIKELY( (paUtilErr_ = (expr)) < paNoError ) ) \
{ \
PaUtil_DebugPrint(( "Expression '" #expr "' failed in '" __FILE__ "', line: " STRINGIZE( __LINE__ ) "\n" )); \
result = paUtilErr_; \
goto error; \
} \
} while (0);
typedef struct {
pthread_t callbackThread;
} PaUtilThreading;
PaError PaUtil_InitializeThreading( PaUtilThreading *threading );
void PaUtil_TerminateThreading( PaUtilThreading *threading );
PaError PaUtil_StartThreading( PaUtilThreading *threading, void *(*threadRoutine)(void *), void *data );
PaError PaUtil_CancelThreading( PaUtilThreading *threading, int wait, PaError *exitResult );
/* State accessed by utility functions */
/*
void PaUnix_SetRealtimeScheduling( int rt );
void PaUtil_InitializeThreading( PaUtilThreading *th, PaUtilCpuLoadMeasurer *clm );
PaError PaUtil_CreateCallbackThread( PaUtilThreading *th, void *(*CallbackThreadFunc)( void * ), PaStream *s );
PaError PaUtil_KillCallbackThread( PaUtilThreading *th, PaError *exitResult );
void PaUtil_CallbackUpdate( PaUtilThreading *th );
*/
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
|
