blob: c1b45f5c2a17badec252d6c194762078ea247fab (
plain)
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
|
#ifndef PORTABLE_MULTITHREADING_H_
#define PORTABLE_MULTITHREADING_H_
#if defined _WIN32 || defined _WIN64
#define _WINSOCKAPI_
#include <Windows.h>
#define DeleteConditionVariable(cond_p) {}
typedef HANDLE THREAD_HANDLE;
#if defined WINXPOROLDER
/****************************************************************************
* Variables
*****************************************************************************/
struct condition_variable_t
{
int waitersCount; // Count of the number of waiters.
CRITICAL_SECTION waitersCountLock; // Serialize access to <waitersCount>.
int releaseCount; // Number of threads to release via a <BroadcastCondition> or a <SignalCondition>.
int waitGenerationCount; // Keeps track of the current "generation" so that we don't allow one thread to steal all the "releases" from the broadcast.
HANDLE waitingEvent; // A manual-reset event that's used to block and release waiting threads.
};
/****************************************************************************
* Prototypes
*****************************************************************************/
void InitCondition (condition_variable_t *cv);
void WaitCondition (condition_variable_t *cv, CRITICAL_SECTION *externalMutex);
void SignalCondition (condition_variable_t *cv);
void BroadcastCondition (condition_variable_t *cv);
/****************************************************************************
* Defines
*****************************************************************************/
#define CONDITION_VARIABLE condition_variable_t
#define InitializeConditionVariable(cond_p) InitCondition(cond_p)
#define SleepConditionVariableCS(cond_p, mutex_p, infinite) WaitCondition(cond_p, mutex_p) // INFINITE should be handled mor properly
#define WakeConditionVariable(cond_p) SignalCondition(cond_p)
#define WakeAllConditionVariable(cond_p) BroadcastCondition(cond_p)
#endif
#else
#include <string.h>
#include <pthread.h>
#include <errno.h>
#include <stdlib.h>
#include <iostream>
#define CRITICAL_SECTION pthread_mutex_t
#define CONDITION_VARIABLE pthread_cond_t
#define InitializeCriticalSection(mutex_p) pthread_mutex_init(mutex_p, NULL)
#define DeleteCriticalSection(mutex_p) pthread_mutex_destroy(mutex_p)
#define EnterCriticalSection(mutex_p) pthread_mutex_lock(mutex_p)
#define LeaveCriticalSection(mutex_p) pthread_mutex_unlock(mutex_p)
#define InitializeConditionVariable(cond_p) pthread_cond_init(cond_p, NULL)
#define DeleteConditionVariable(cond_p) pthread_cond_destroy(cond_p)
#define SleepConditionVariableCS(cond_p, mutex_p, infinite) pthread_cond_wait(cond_p, mutex_p) // INFINITE should be handled mor properly
#define WakeConditionVariable(cond_p) pthread_cond_signal(cond_p)
#define WakeAllConditionVariable(cond_p) pthread_cond_broadcast(cond_p)
typedef pthread_t* THREAD_HANDLE;
#endif
THREAD_HANDLE CreateThreadPortable (void *(*start_routine) (void *), void *arg);
void DestroyThreadPortable (THREAD_HANDLE th);
#endif // PORTABLE_MULTITHREADING_H_
|
