18 #ifndef MAGICKCORE_THREAD_PRIVATE_H
19 #define MAGICKCORE_THREAD_PRIVATE_H
21 #include "MagickCore/cache.h"
22 #include "MagickCore/image-private.h"
23 #include "MagickCore/resource_.h"
24 #include "MagickCore/thread_.h"
26 #if defined(__cplusplus) || defined(c_plusplus)
30 #define magick_number_threads(source,destination,chunk,multithreaded) \
31 num_threads(GetMagickNumberThreads(source,destination,chunk,multithreaded))
32 #if defined(__clang__) || (__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ > 10))
33 #define MagickCachePrefetch(address,mode,locality) \
34 __builtin_prefetch(address,mode,locality)
36 #define MagickCachePrefetch(address,mode,locality) \
37 magick_unreferenced(address); \
38 magick_unreferenced(mode); \
39 magick_unreferenced(locality);
42 #if defined(MAGICKCORE_THREAD_SUPPORT)
43 typedef pthread_mutex_t MagickMutexType;
44 #elif defined(MAGICKCORE_WINDOWS_SUPPORT)
45 typedef CRITICAL_SECTION MagickMutexType;
47 typedef size_t MagickMutexType;
50 static inline int GetMagickNumberThreads(
const Image *source,
51 const Image *destination,
const size_t chunk,
int multithreaded)
54 destination_type = (CacheType) GetImagePixelCacheType(destination),
55 source_type = (CacheType) GetImagePixelCacheType(source);
63 if (multithreaded == 0)
65 if (((source_type != MemoryCache) && (source_type != MapCache)) ||
66 ((destination_type != MemoryCache) && (destination_type != MapCache)))
67 number_threads=(int) MagickMin(GetMagickResourceLimit(ThreadResource),2);
69 number_threads=(int) MagickMin((ssize_t)
70 GetMagickResourceLimit(ThreadResource),(ssize_t) (chunk)/64);
71 return(MagickMax(number_threads,1));
74 static inline MagickThreadType GetMagickThreadId(
void)
76 #if defined(MAGICKCORE_THREAD_SUPPORT)
77 return(pthread_self());
78 #elif defined(MAGICKCORE_WINDOWS_SUPPORT)
79 return(GetCurrentThreadId());
85 static inline size_t GetMagickThreadSignature(
void)
87 #if defined(MAGICKCORE_THREAD_SUPPORT)
98 magick_thread.signature=0UL;
99 magick_thread.id=pthread_self();
100 return(magick_thread.signature);
102 #elif defined(MAGICKCORE_WINDOWS_SUPPORT)
103 return((
size_t) GetCurrentThreadId());
105 return((
size_t) getpid());
109 static inline MagickBooleanType IsMagickThreadEqual(
const MagickThreadType
id)
111 #if defined(MAGICKCORE_THREAD_SUPPORT)
112 if (pthread_equal(
id,pthread_self()) != 0)
114 #elif defined(MAGICKCORE_WINDOWS_SUPPORT)
115 if (
id == GetCurrentThreadId())
127 static inline size_t GetOpenMPMaximumThreads(
void)
129 #if defined(MAGICKCORE_OPENMP_SUPPORT)
130 return(omp_get_max_threads());
136 static inline int GetOpenMPThreadId(
void)
138 #if defined(MAGICKCORE_OPENMP_SUPPORT)
139 return(omp_get_thread_num());
145 static inline void SetOpenMPMaximumThreads(
const int threads)
147 #if defined(MAGICKCORE_OPENMP_SUPPORT)
148 omp_set_num_threads(threads);
150 magick_unreferenced(threads);
154 static inline void SetOpenMPNested(
const int value)
156 #if defined(MAGICKCORE_OPENMP_SUPPORT)
157 omp_set_nested(value);
159 magick_unreferenced(value);
163 #if defined(__cplusplus) || defined(c_plusplus)