33 |
# include <features.h> |
# include <features.h> |
34 |
#endif |
#endif |
35 |
|
|
36 |
|
#if !defined(WIN32) |
37 |
#if !defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 500 |
#if !defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 500 |
38 |
# undef _XOPEN_SOURCE |
# undef _XOPEN_SOURCE |
39 |
# define _XOPEN_SOURCE 500 /* to define PTHREAD_MUTEX_ERRORCHECK */ |
# define _XOPEN_SOURCE 500 /* to define PTHREAD_MUTEX_ERRORCHECK */ |
41 |
# warning "Please run LinuxSampler's selftest to make sure this won't be a problem!" |
# warning "Please run LinuxSampler's selftest to make sure this won't be a problem!" |
42 |
# warning "(compile tests with 'make tests', run them with 'src/testcases/linuxsamplertest')" |
# warning "(compile tests with 'make tests', run them with 'src/testcases/linuxsamplertest')" |
43 |
#endif |
#endif |
44 |
|
#endif |
45 |
|
|
46 |
#include <iostream> |
#include <iostream> |
47 |
#include <errno.h> |
#include <errno.h> |
52 |
namespace LinuxSampler { |
namespace LinuxSampler { |
53 |
|
|
54 |
Mutex::Mutex() { |
Mutex::Mutex() { |
55 |
|
#if defined(WIN32) |
56 |
|
hMutex = CreateMutex( NULL, FALSE, NULL); |
57 |
|
if (hMutex == NULL) { |
58 |
|
std::cerr << "Mutex Constructor: Fatal error - CreateMutex error " << GetLastError() << "\n"; |
59 |
|
exit(1); |
60 |
|
} |
61 |
|
#else |
62 |
pthread_mutexattr_init(&__posix_mutexattr); |
pthread_mutexattr_init(&__posix_mutexattr); |
63 |
|
|
64 |
// the following function call only works on UNIX98 compatible systems |
// the following function call only works on UNIX98 compatible systems |
69 |
// the symbol __APPLE__ is checked here. There should be a better solution |
// the symbol __APPLE__ is checked here. There should be a better solution |
70 |
// to this problem. (Toshi Nagata, 27 Mar 2007) |
// to this problem. (Toshi Nagata, 27 Mar 2007) |
71 |
if (pthread_mutexattr_settype(&__posix_mutexattr, PTHREAD_MUTEX_ERRORCHECK)) { |
if (pthread_mutexattr_settype(&__posix_mutexattr, PTHREAD_MUTEX_ERRORCHECK)) { |
72 |
std::cout << "Mutex Constructor: Fatal error - unable to pthread_mutexattr_settype(PTHREAD_MUTEX_ERRORCHECK)\n" << std::flush; |
std::cerr << "Mutex Constructor: Fatal error - unable to pthread_mutexattr_settype(PTHREAD_MUTEX_ERRORCHECK)\n" << std::flush; |
73 |
exit(-1); |
exit(-1); |
74 |
} |
} |
75 |
#endif |
#endif |
76 |
pthread_mutex_init(&__posix_mutex, &__posix_mutexattr); |
pthread_mutex_init(&__posix_mutex, &__posix_mutexattr); |
77 |
|
#endif |
78 |
} |
} |
79 |
|
|
80 |
Mutex::~Mutex() { |
Mutex::~Mutex() { |
81 |
|
#if defined(WIN32) |
82 |
|
CloseHandle(hMutex); |
83 |
|
#else |
84 |
pthread_mutex_destroy(&__posix_mutex); |
pthread_mutex_destroy(&__posix_mutex); |
85 |
pthread_mutexattr_destroy(&__posix_mutexattr); |
pthread_mutexattr_destroy(&__posix_mutexattr); |
86 |
|
#endif |
87 |
} |
} |
88 |
|
|
89 |
void Mutex::Lock() { |
void Mutex::Lock() { |
90 |
|
#if defined(WIN32) |
91 |
|
WaitForSingleObject(hMutex, INFINITE); |
92 |
|
#else |
93 |
pthread_mutex_lock(&__posix_mutex); |
pthread_mutex_lock(&__posix_mutex); |
94 |
|
#endif |
95 |
} |
} |
96 |
|
|
97 |
bool Mutex::Trylock() { |
bool Mutex::Trylock() { |
98 |
|
#if defined(WIN32) |
99 |
|
if( WaitForSingleObject(hMutex, 0) == WAIT_TIMEOUT) return false; |
100 |
|
return true; |
101 |
|
#else |
102 |
if (pthread_mutex_trylock(&__posix_mutex) == EBUSY) |
if (pthread_mutex_trylock(&__posix_mutex) == EBUSY) |
103 |
return false; |
return false; |
104 |
return true; |
return true; |
105 |
|
#endif |
106 |
} |
} |
107 |
|
|
108 |
void Mutex::Unlock() { |
void Mutex::Unlock() { |
109 |
|
#if defined(WIN32) |
110 |
|
ReleaseMutex(hMutex); |
111 |
|
#else |
112 |
pthread_mutex_unlock(&__posix_mutex); |
pthread_mutex_unlock(&__posix_mutex); |
113 |
|
#endif |
114 |
} |
} |
115 |
|
|
116 |
} // namespace LinuxSampler |
} // namespace LinuxSampler |