2 * mono-threads.h: Low-level threading
5 * Rodrigo Kumpera (kumpera@gmail.com)
10 #ifndef __MONO_THREADS_H__
11 #define __MONO_THREADS_H__
13 #include <mono/utils/mono-semaphore.h>
14 #include <mono/utils/mono-stack-unwinding.h>
15 #include <mono/utils/mono-linked-list-set.h>
17 /* FIXME used for CRITICAL_SECTION replace with mono-mutex */
18 #include <mono/io-layer/io-layer.h>
26 typedef DWORD MonoNativeThreadId;
27 typedef HANDLE MonoNativeThreadHandle; /* unused */
29 typedef DWORD mono_native_thread_return_t;
31 #define mono_native_thread_id_get GetCurrentThreadId
32 #define mono_native_thread_id_equals(a,b) ((a) == ((b))
34 HANDLE mono_threads_CreateThread (LPSECURITY_ATTRIBUTES attributes, SIZE_T stack_size, LPTHREAD_START_ROUTINE start_routine,
35 LPVOID arg, DWORD creation_flags, LPDWORD thread_id) MONO_INTERNAL;
37 #define mono_native_thread_create(id,func,arg) (CreateThread (NULL, 0, (func), (arg), 0, (id)) != NULL)
44 #include <mono/utils/mach-support.h>
46 typedef thread_port_t MonoNativeThreadHandle;
52 typedef pid_t MonoNativeThreadHandle;
54 #endif /* defined(__MACH__) */
56 typedef pthread_t MonoNativeThreadId;
58 typedef void* mono_native_thread_return_t;
60 #define mono_native_thread_id_get pthread_self
61 #define mono_native_thread_id_equals(a,b) pthread_equal((a),(b))
63 #define mono_native_thread_create(tid,func,arg) (pthread_create ((tid), NULL, (func), (arg)) == 0)
65 #endif /* #ifdef HOST_WIN32 */
67 #ifndef THREAD_INFO_TYPE
68 #define THREAD_INFO_TYPE MonoThreadInfo
72 STATE_STARTING = 0x01,
74 STATE_SHUTTING_DOWN = 0x03,
76 RUN_STATE_MASK = 0x0F,
78 STATE_SUSPENDED = 0x10,
79 STATE_SELF_SUSPENDED = 0x20,
80 SUSPEND_STATE_MASK = 0xF0,
83 #define mono_thread_info_run_state(info) ((info)->thread_state & RUN_STATE_MASK)
84 #define mono_thread_info_suspend_state(info) ((info)->thread_state & SUSPEND_STATE_MASK)
87 MonoLinkedListSetNode node;
88 guint32 small_id; /*Used by hazard pointers */
89 MonoNativeThreadHandle native_handle; /* Valid on mach and android */
92 /* suspend machinery, fields protected by the suspend_lock */
93 CRITICAL_SECTION suspend_lock;
96 MonoSemType finish_resume_semaphore;
97 MonoSemType resume_semaphore;
99 /* only needed by the posix backend */
100 #if (defined(_POSIX_VERSION) || defined(__native_client__)) && !defined (__MACH__)
101 MonoSemType suspend_semaphore;
104 /*In theory, only the posix backend needs this, but having it on mach/win32 simplifies things a lot.*/
105 MonoThreadUnwindState suspend_state;
107 /*async call machinery, thread MUST be suspended before accessing those fields*/
108 void (*async_target)(void*);
113 void* (*thread_register)(THREAD_INFO_TYPE *info, void *baseaddr);
115 This callback is called after @info is removed from the thread list.
116 SMR remains functional as its small_id has not been reclaimed.
118 void (*thread_unregister)(THREAD_INFO_TYPE *info);
119 void (*thread_attach)(THREAD_INFO_TYPE *info);
120 gboolean (*mono_method_is_critical) (void *method);
122 int (*mono_gc_pthread_create) (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg);
124 } MonoThreadInfoCallbacks;
127 void (*setup_async_callback) (MonoContext *ctx, void (*async_cb)(void *fun), gpointer user_data);
128 gboolean (*thread_state_init_from_sigctx) (MonoThreadUnwindState *state, void *sigctx);
129 gboolean (*thread_state_init_from_handle) (MonoThreadUnwindState *tctx, MonoNativeThreadId thread_id, MonoNativeThreadHandle thread_handle);
130 } MonoThreadInfoRuntimeCallbacks;
133 Requires the world to be stoped
135 #define FOREACH_THREAD(thread) MONO_LLS_FOREACH (mono_thread_info_list_head (), thread)
136 #define END_FOREACH_THREAD MONO_LLS_END_FOREACH
141 #define FOREACH_THREAD_SAFE(thread) MONO_LLS_FOREACH_SAFE (mono_thread_info_list_head (), thread)
142 #define END_FOREACH_THREAD_SAFE MONO_LLS_END_FOREACH_SAFE
144 #define mono_thread_info_get_tid(info) ((MonoNativeThreadId)((MonoThreadInfo*)info)->node.key)
145 #define mono_thread_info_set_tid(info, val) do { ((MonoThreadInfo*)(info))->node.key = (uintptr_t)(val); } while (0)
148 * @thread_info_size is sizeof (GcThreadInfo), a struct the GC defines to make it possible to have
149 * a single block with info from both camps.
152 mono_threads_init (MonoThreadInfoCallbacks *callbacks, size_t thread_info_size) MONO_INTERNAL;
155 mono_threads_runtime_init (MonoThreadInfoRuntimeCallbacks *callbacks) MONO_INTERNAL;
157 MonoThreadInfoCallbacks *
158 mono_threads_get_callbacks (void) MONO_INTERNAL;
160 MonoThreadInfoRuntimeCallbacks *
161 mono_threads_get_runtime_callbacks (void) MONO_INTERNAL;
164 mono_thread_info_register_small_id (void) MONO_INTERNAL;
167 mono_thread_info_attach (void *baseptr) MONO_INTERNAL;
170 mono_thread_info_dettach (void) MONO_INTERNAL;
173 mono_thread_info_current (void) MONO_INTERNAL;
176 mono_thread_info_get_small_id (void) MONO_INTERNAL;
179 mono_thread_info_list_head (void) MONO_INTERNAL;
182 mono_thread_info_lookup (MonoNativeThreadId id) MONO_INTERNAL;
185 mono_thread_info_safe_suspend_sync (MonoNativeThreadId tid, gboolean interrupt_kernel) MONO_INTERNAL;
188 mono_thread_info_resume (MonoNativeThreadId tid) MONO_INTERNAL;
191 mono_thread_info_self_suspend (void) MONO_INTERNAL;
194 mono_thread_info_new_interrupt_enabled (void) MONO_INTERNAL;
197 mono_thread_info_setup_async_call (MonoThreadInfo *info, void (*target_func)(void*), void *user_data) MONO_INTERNAL;
200 mono_thread_info_suspend_lock (void) MONO_INTERNAL;
203 mono_thread_info_suspend_unlock (void) MONO_INTERNAL;
206 mono_threads_unregister_current_thread (THREAD_INFO_TYPE *info) MONO_INTERNAL;
209 mono_thread_info_disable_new_interrupt (gboolean disable) MONO_INTERNAL;
212 #if !defined(HOST_WIN32)
215 mono_threads_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) MONO_INTERNAL;
217 #if !defined(__MACH__)
218 /*Use this instead of pthread_kill */
220 mono_threads_pthread_kill (THREAD_INFO_TYPE *info, int signum) MONO_INTERNAL;
223 #endif /* !defined(HOST_WIN32) */
225 /* Plartform specific functions DON'T use them */
226 void mono_threads_init_platform (void) MONO_INTERNAL; //ok
227 gboolean mono_threads_core_suspend (MonoThreadInfo *info) MONO_INTERNAL;
228 gboolean mono_threads_core_resume (MonoThreadInfo *info) MONO_INTERNAL;
229 void mono_threads_platform_register (MonoThreadInfo *info) MONO_INTERNAL; //ok
230 void mono_threads_platform_free (MonoThreadInfo *info) MONO_INTERNAL;
231 void mono_threads_core_interrupt (MonoThreadInfo *info) MONO_INTERNAL;
233 #endif /* __MONO_THREADS_H__ */