#include <mono/utils/mono-semaphore.h>
#include <mono/utils/mono-stack-unwinding.h>
#include <mono/utils/mono-linked-list-set.h>
-
-/* FIXME used for CRITICAL_SECTION replace with mono-mutex */
-#include <mono/io-layer/io-layer.h>
+#include <mono/utils/mono-mutex.h>
#include <glib.h>
#include <windows.h>
typedef DWORD MonoNativeThreadId;
-typedef HANDLE MonoNativeThreadHandle;
+typedef HANDLE MonoNativeThreadHandle; /* unused */
-#define mono_native_thread_id_get GetCurrentThreadId
-#define mono_native_thread_id_equals(a,b) ((a) == ((b))
+typedef DWORD mono_native_thread_return_t;
#else
typedef thread_port_t MonoNativeThreadHandle;
#else
-/*FIXME this should be pid_t on posix - to handle android borken signaling */
-typedef pthread_t MonoNativeThreadHandle;
+
+#include <unistd.h>
+
+typedef pid_t MonoNativeThreadHandle;
#endif /* defined(__MACH__) */
typedef pthread_t MonoNativeThreadId;
-#define mono_native_thread_id_get pthread_self
-#define mono_native_thread_id_equals(a,b) pthread_equal((a),(b))
+typedef void* mono_native_thread_return_t;
#endif /* #ifdef HOST_WIN32 */
+/*
+THREAD_INFO_TYPE is a way to make the mono-threads module parametric - or sort of.
+The GC using mono-threads might extend the MonoThreadInfo struct to add its own
+data, this avoid a pointer indirection on what is on a lot of hot paths.
+
+But extending MonoThreadInfo has de disavantage that all functions here return type
+would require a cast, something like the following:
+
+typedef struct {
+ MonoThreadInfo info;
+ int stuff;
+} MyThreadInfo;
+
+...
+((MyThreadInfo*)mono_thread_info_current ())->stuff = 1;
+
+While porting sgen to use mono-threads, the number of casts required was too much and
+code ended up looking horrible. So we use this cute little hack. The idea is that
+whomever is including this header can set the expected type to be used by functions here
+and reduce the number of casts drastically.
+
+*/
#ifndef THREAD_INFO_TYPE
#define THREAD_INFO_TYPE MonoThreadInfo
#endif
enum {
- STATE_STARTING,
- STATE_RUNNING,
- STATE_SHUTTING_DOWN,
- STATE_DEAD
+ STATE_STARTING = 0x00,
+ STATE_RUNNING = 0x01,
+ STATE_SHUTTING_DOWN = 0x02,
+ STATE_DEAD = 0x03,
+ RUN_STATE_MASK = 0x0F,
+
+ STATE_SUSPENDED = 0x10,
+ STATE_SELF_SUSPENDED = 0x20,
+ SUSPEND_STATE_MASK = 0xF0,
};
+#define mono_thread_info_run_state(info) (((MonoThreadInfo*)info)->thread_state & RUN_STATE_MASK)
+#define mono_thread_info_suspend_state(info) (((MonoThreadInfo*)info)->thread_state & SUSPEND_STATE_MASK)
+
typedef struct {
MonoLinkedListSetNode node;
guint32 small_id; /*Used by hazard pointers */
- MonoNativeThreadHandle native_handle;
+ MonoNativeThreadHandle native_handle; /* Valid on mach and android */
int thread_state;
- /* suspend machinery, fields protected by the suspend_lock */
- CRITICAL_SECTION suspend_lock;
- int suspend_count;
+ /*Tells if this thread was created by the runtime or not.*/
+ gboolean runtime_thread;
- /* only needed by the posix backend */
-#if defined(_POSIX_VERSION) && !defined (__MACH__)
+ /* suspend machinery, fields protected by suspend_semaphore */
MonoSemType suspend_semaphore;
- MonoSemType resume_semaphore;
+ int suspend_count;
+
MonoSemType finish_resume_semaphore;
- gboolean self_suspend;
+ MonoSemType resume_semaphore;
+
+ /* only needed by the posix backend */
+#if (defined(_POSIX_VERSION) || defined(__native_client__)) && !defined (__MACH__)
+ MonoSemType begin_suspend_semaphore;
+ gboolean syscall_break_signal;
+ gboolean suspend_can_continue;
#endif
/*In theory, only the posix backend needs this, but having it on mach/win32 simplifies things a lot.*/
/*async call machinery, thread MUST be suspended before accessing those fields*/
void (*async_target)(void*);
void *user_data;
+
+ /*
+ If true, this thread is running a critical region of code and cannot be suspended.
+ A critical session is implicitly started when you call mono_thread_info_safe_suspend_sync
+ and is ended when you call either mono_thread_info_resume or mono_thread_info_finish_suspend.
+ */
+ gboolean inside_critical_region;
+
+ /*
+ * If TRUE, the thread is in async context. Code can use this information to avoid async-unsafe
+ * operations like locking without having to pass an 'async' parameter around.
+ */
+ gboolean is_async_context;
} MonoThreadInfo;
typedef struct {
void* (*thread_register)(THREAD_INFO_TYPE *info, void *baseaddr);
/*
- This callback is called after @info is removed from the thread list.
+ This callback is called with @info still on the thread list.
+ This call is made while holding the suspend lock, so don't do callbacks.
SMR remains functional as its small_id has not been reclaimed.
*/
void (*thread_unregister)(THREAD_INFO_TYPE *info);
+ /*
+ This callback is called right before thread_unregister. This is called
+ without any locks held so it's the place for complicated cleanup.
+
+ The thread must remain operational between this call and thread_unregister.
+ It must be possible to successfully suspend it after thread_unregister completes.
+ */
+ void (*thread_detach)(THREAD_INFO_TYPE *info);
void (*thread_attach)(THREAD_INFO_TYPE *info);
gboolean (*mono_method_is_critical) (void *method);
+#ifndef HOST_WIN32
+ int (*mono_gc_pthread_create) (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg);
+#endif
} MonoThreadInfoCallbacks;
typedef struct {
/*
Requires the world to be stoped
*/
-#define FOREACH_THREAD(thread) MONO_LLS_FOREACH (mono_thread_info_list_head (), thread)
+#define FOREACH_THREAD(thread) MONO_LLS_FOREACH (mono_thread_info_list_head (), thread, THREAD_INFO_TYPE*)
#define END_FOREACH_THREAD MONO_LLS_END_FOREACH
/*
Snapshot iteration.
*/
-#define FOREACH_THREAD_SAFE(thread) MONO_LLS_FOREACH_SAFE (mono_thread_info_list_head (), thread)
+#define FOREACH_THREAD_SAFE(thread) MONO_LLS_FOREACH_SAFE (mono_thread_info_list_head (), thread, THREAD_INFO_TYPE*)
#define END_FOREACH_THREAD_SAFE MONO_LLS_END_FOREACH_SAFE
#define mono_thread_info_get_tid(info) ((MonoNativeThreadId)((MonoThreadInfo*)info)->node.key)
void
mono_threads_runtime_init (MonoThreadInfoRuntimeCallbacks *callbacks) MONO_INTERNAL;
+MonoThreadInfoCallbacks *
+mono_threads_get_callbacks (void) MONO_INTERNAL;
+
MonoThreadInfoRuntimeCallbacks *
mono_threads_get_runtime_callbacks (void) MONO_INTERNAL;
MonoLinkedListSet*
mono_thread_info_list_head (void) MONO_INTERNAL;
-MonoThreadInfo*
+THREAD_INFO_TYPE*
mono_thread_info_lookup (MonoNativeThreadId id) MONO_INTERNAL;
-MonoThreadInfo*
+THREAD_INFO_TYPE*
mono_thread_info_safe_suspend_sync (MonoNativeThreadId tid, gboolean interrupt_kernel) MONO_INTERNAL;
gboolean
mono_thread_info_resume (MonoNativeThreadId tid) MONO_INTERNAL;
+void
+mono_thread_info_finish_suspend (void) MONO_INTERNAL;
+
void
mono_thread_info_self_suspend (void) MONO_INTERNAL;
mono_thread_info_new_interrupt_enabled (void) MONO_INTERNAL;
void
-mono_thread_info_setup_async_call (MonoThreadInfo *info, void (*target_func)(void*), void *user_data) MONO_INTERNAL;
+mono_thread_info_setup_async_call (THREAD_INFO_TYPE *info, void (*target_func)(void*), void *user_data) MONO_INTERNAL;
void
mono_thread_info_suspend_lock (void) MONO_INTERNAL;
mono_thread_info_suspend_unlock (void) MONO_INTERNAL;
void
-mono_threads_unregister_current_thread (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+mono_thread_info_disable_new_interrupt (gboolean disable) MONO_INTERNAL;
+
+void
+mono_thread_info_abort_socket_syscall_for_close (MonoNativeThreadId tid) MONO_INTERNAL;
+
+void
+mono_thread_info_set_is_async_context (gboolean async_context) MONO_INTERNAL;
+
+gboolean
+mono_thread_info_is_async_context (void) MONO_INTERNAL;
#if !defined(HOST_WIN32)
int
mono_threads_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) MONO_INTERNAL;
+#if !defined(__MACH__)
+/*Use this instead of pthread_kill */
+int
+mono_threads_pthread_kill (THREAD_INFO_TYPE *info, int signum) MONO_INTERNAL;
+#endif
+
+#else /* !defined(HOST_WIN32) */
+
+HANDLE
+ mono_threads_CreateThread (LPSECURITY_ATTRIBUTES attributes, SIZE_T stack_size, LPTHREAD_START_ROUTINE start_routine, LPVOID arg, DWORD creation_flags, LPDWORD thread_id);
+
+
#endif /* !defined(HOST_WIN32) */
/* Plartform specific functions DON'T use them */
void mono_threads_init_platform (void) MONO_INTERNAL; //ok
-gboolean mono_threads_core_suspend (MonoThreadInfo *info) MONO_INTERNAL;
-gboolean mono_threads_core_resume (MonoThreadInfo *info) MONO_INTERNAL;
-void mono_threads_platform_register (MonoThreadInfo *info) MONO_INTERNAL; //ok
-void mono_threads_platform_free (MonoThreadInfo *info) MONO_INTERNAL;
-void mono_threads_core_self_suspend (MonoThreadInfo *info) MONO_INTERNAL;
-void mono_threads_core_interrupt (MonoThreadInfo *info) MONO_INTERNAL;
+gboolean mono_threads_core_suspend (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+gboolean mono_threads_core_resume (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+void mono_threads_platform_register (THREAD_INFO_TYPE *info) MONO_INTERNAL; //ok
+void mono_threads_platform_free (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+void mono_threads_core_interrupt (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+void mono_threads_core_abort_syscall (THREAD_INFO_TYPE *info) MONO_INTERNAL;
+gboolean mono_threads_core_needs_abort_syscall (void) MONO_INTERNAL;
+
+MonoNativeThreadId mono_native_thread_id_get (void) MONO_INTERNAL;
+
+gboolean mono_native_thread_id_equals (MonoNativeThreadId id1, MonoNativeThreadId id2) MONO_INTERNAL;
+
+gboolean
+mono_native_thread_create (MonoNativeThreadId *tid, gpointer func, gpointer arg) MONO_INTERNAL;
#endif /* __MONO_THREADS_H__ */
projects / mono.git / blobdiff