SDL  2.0
SDL_events_c.h File Reference
#include "../SDL_internal.h"
#include "SDL_events.h"
#include "SDL_thread.h"
#include "SDL_clipboardevents_c.h"
#include "SDL_dropevents_c.h"
#include "SDL_gesture_c.h"
#include "SDL_keyboard_c.h"
#include "SDL_mouse_c.h"
#include "SDL_touch_c.h"
#include "SDL_windowevents_c.h"
+ Include dependency graph for SDL_events_c.h:
+ This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions

int SDL_StartEventLoop (void)
 
void SDL_StopEventLoop (void)
 
void SDL_QuitInterrupt (void)
 
int SDL_SendAppEvent (SDL_EventType eventType)
 
int SDL_SendSysWMEvent (SDL_SysWMmsg *message)
 
int SDL_SendKeymapChangedEvent (void)
 
int SDL_QuitInit (void)
 
int SDL_SendQuit (void)
 
void SDL_QuitQuit (void)
 
void SDL_SendPendingQuit (void)
 

Variables

SDL_EventFilter SDL_EventOK
 
voidSDL_EventOKParam
 

Function Documentation

int SDL_QuitInit ( void  )

Definition at line 92 of file SDL_quit.c.

References SDL_FALSE, SDL_GetHintBoolean, SDL_HINT_NO_SIGNAL_HANDLERS, and SDL_QuitInit_Internal().

Referenced by SDL_InitSubSystem().

93 {
95  return SDL_QuitInit_Internal();
96  }
97  return 0;
98 }
#define SDL_GetHintBoolean
#define SDL_HINT_NO_SIGNAL_HANDLERS
Tell SDL not to catch the SIGINT or SIGTERM signals.
Definition: SDL_hints.h:746
static int SDL_QuitInit_Internal(void)
Definition: SDL_quit.c:52
void SDL_QuitInterrupt ( void  )
void SDL_QuitQuit ( void  )

Definition at line 128 of file SDL_quit.c.

References disable_signals, and SDL_QuitQuit_Internal().

Referenced by SDL_QuitSubSystem().

129 {
130  if (!disable_signals) {
132  }
133 }
static SDL_bool disable_signals
Definition: SDL_quit.c:34
static void SDL_QuitQuit_Internal(void)
Definition: SDL_quit.c:101
int SDL_SendAppEvent ( SDL_EventType  eventType)

Definition at line 853 of file SDL_events.c.

References SDL_ENABLE, SDL_GetEventState, and SDL_PushEvent().

Referenced by SDL_OnApplicationDidBecomeActive(), SDL_OnApplicationDidEnterBackground(), SDL_OnApplicationDidReceiveMemoryWarning(), SDL_OnApplicationWillEnterForeground(), SDL_OnApplicationWillResignActive(), SDL_OnApplicationWillTerminate(), SDL_SendKeymapChangedEvent(), and SDL_SendQuit().

854 {
855  int posted;
856 
857  posted = 0;
858  if (SDL_GetEventState(eventType) == SDL_ENABLE) {
860  event.type = eventType;
861  posted = (SDL_PushEvent(&event) > 0);
862  }
863  return (posted);
864 }
#define SDL_ENABLE
Definition: SDL_events.h:722
#define SDL_GetEventState(type)
Definition: SDL_events.h:735
struct _cl_event * event
int SDL_PushEvent(SDL_Event *event)
Add an event to the event queue.
Definition: SDL_events.c:689
General event structure.
Definition: SDL_events.h:525
int SDL_SendKeymapChangedEvent ( void  )

Definition at line 884 of file SDL_events.c.

References SDL_KEYMAPCHANGED, and SDL_SendAppEvent().

885 {
887 }
int SDL_SendAppEvent(SDL_EventType eventType)
Definition: SDL_events.c:853
void SDL_SendPendingQuit ( void  )

Definition at line 144 of file SDL_quit.c.

References SDL_assert, SDL_SendQuit(), and send_quit_pending.

Referenced by SDL_PumpEvents().

145 {
146  if (send_quit_pending) {
147  SDL_SendQuit();
149  }
150 }
static SDL_bool send_quit_pending
Definition: SDL_quit.c:35
int SDL_SendQuit(void)
Definition: SDL_quit.c:137
#define SDL_assert(condition)
Definition: SDL_assert.h:169
int SDL_SendQuit ( void  )

Definition at line 137 of file SDL_quit.c.

References SDL_FALSE, SDL_QUIT, SDL_SendAppEvent(), and send_quit_pending.

Referenced by SDL_SendPendingQuit(), and SDL_SendWindowEvent().

138 {
140  return SDL_SendAppEvent(SDL_QUIT);
141 }
static SDL_bool send_quit_pending
Definition: SDL_quit.c:35
int SDL_SendAppEvent(SDL_EventType eventType)
Definition: SDL_events.c:853
int SDL_SendSysWMEvent ( SDL_SysWMmsg message)

Definition at line 867 of file SDL_events.c.

References SDL_ENABLE, SDL_GetEventState, SDL_memset, SDL_PushEvent(), and SDL_SYSWMEVENT.

868 {
869  int posted;
870 
871  posted = 0;
874  SDL_memset(&event, 0, sizeof(event));
875  event.type = SDL_SYSWMEVENT;
876  event.syswm.msg = message;
877  posted = (SDL_PushEvent(&event) > 0);
878  }
879  /* Update internal event state */
880  return (posted);
881 }
GLuint GLsizei const GLchar * message
#define SDL_ENABLE
Definition: SDL_events.h:722
#define SDL_GetEventState(type)
Definition: SDL_events.h:735
struct _cl_event * event
int SDL_PushEvent(SDL_Event *event)
Add an event to the event queue.
Definition: SDL_events.c:689
General event structure.
Definition: SDL_events.h:525
#define SDL_memset
int SDL_StartEventLoop ( void  )

Definition at line 386 of file SDL_events.c.

References NULL, SDL_AtomicSet, SDL_CreateMutex, SDL_DISABLE, SDL_EventQ, SDL_EventState(), SDL_SYSWMEVENT, SDL_TEXTEDITING, and SDL_TEXTINPUT.

Referenced by SDL_InitSubSystem().

387 {
388  /* We'll leave the event queue alone, since we might have gotten
389  some important events at launch (like SDL_DROPFILE)
390 
391  FIXME: Does this introduce any other bugs with events at startup?
392  */
393 
394  /* Create the lock and set ourselves active */
395 #if !SDL_THREADS_DISABLED
396  if (!SDL_EventQ.lock) {
397  SDL_EventQ.lock = SDL_CreateMutex();
398  }
399  if (SDL_EventQ.lock == NULL) {
400  return -1;
401  }
402 #endif /* !SDL_THREADS_DISABLED */
403 
404  /* Process most event types */
408 
409  SDL_AtomicSet(&SDL_EventQ.active, 1);
410 
411  return 0;
412 }
#define SDL_CreateMutex
static struct @20 SDL_EventQ
Uint8 SDL_EventState(Uint32 type, int state)
Definition: SDL_events.c:798
#define SDL_DISABLE
Definition: SDL_events.h:721
#define NULL
Definition: begin_code.h:164
#define SDL_AtomicSet
void SDL_StopEventLoop ( void  )

Definition at line 316 of file SDL_events.c.

References i, SDL_EventWatcher::next, SDL_EventEntry::next, SDL_SysWMEntry::next, NULL, SDL_arraysize, SDL_atoi, SDL_AtomicSet, SDL_DestroyMutex, SDL_event_watchers, SDL_EventOK, SDL_EventQ, SDL_free(), SDL_GetHint, SDL_LockMutex, SDL_Log, and SDL_UnlockMutex.

Referenced by SDL_QuitSubSystem().

317 {
318  const char *report = SDL_GetHint("SDL_EVENT_QUEUE_STATISTICS");
319  int i;
320  SDL_EventEntry *entry;
321  SDL_SysWMEntry *wmmsg;
322 
323  if (SDL_EventQ.lock) {
325  }
326 
327  SDL_AtomicSet(&SDL_EventQ.active, 0);
328 
329  if (report && SDL_atoi(report)) {
330  SDL_Log("SDL EVENT QUEUE: Maximum events in-flight: %d\n",
331  SDL_EventQ.max_events_seen);
332  }
333 
334  /* Clean out EventQ */
335  for (entry = SDL_EventQ.head; entry; ) {
336  SDL_EventEntry *next = entry->next;
337  SDL_free(entry);
338  entry = next;
339  }
340  for (entry = SDL_EventQ.free; entry; ) {
341  SDL_EventEntry *next = entry->next;
342  SDL_free(entry);
343  entry = next;
344  }
345  for (wmmsg = SDL_EventQ.wmmsg_used; wmmsg; ) {
346  SDL_SysWMEntry *next = wmmsg->next;
347  SDL_free(wmmsg);
348  wmmsg = next;
349  }
350  for (wmmsg = SDL_EventQ.wmmsg_free; wmmsg; ) {
351  SDL_SysWMEntry *next = wmmsg->next;
352  SDL_free(wmmsg);
353  wmmsg = next;
354  }
355 
356  SDL_AtomicSet(&SDL_EventQ.count, 0);
357  SDL_EventQ.max_events_seen = 0;
358  SDL_EventQ.head = NULL;
359  SDL_EventQ.tail = NULL;
360  SDL_EventQ.free = NULL;
361  SDL_EventQ.wmmsg_used = NULL;
362  SDL_EventQ.wmmsg_free = NULL;
363 
364  /* Clear disabled event state */
365  for (i = 0; i < SDL_arraysize(SDL_disabled_events); ++i) {
368  }
369 
370  while (SDL_event_watchers) {
372  SDL_event_watchers = tmp->next;
373  SDL_free(tmp);
374  }
375  SDL_EventOK = NULL;
376 
377  if (SDL_EventQ.lock) {
380  SDL_EventQ.lock = NULL;
381  }
382 }
#define SDL_LockMutex
static SDL_EventWatcher * SDL_event_watchers
Definition: SDL_events.c:51
struct _SDL_EventEntry * next
Definition: SDL_events.c:66
#define SDL_GetHint
Definition: SDL_events.c:69
struct _SDL_SysWMEntry * next
Definition: SDL_events.c:72
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_Log
struct SDL_EventWatcher * next
Definition: SDL_events.c:48
void SDL_free(void *mem)
SDL_EventFilter SDL_EventOK
Definition: SDL_events.c:42
static struct @20 SDL_EventQ
Definition: SDL_events.c:61
#define SDL_atoi
#define NULL
Definition: begin_code.h:164
#define SDL_DestroyMutex
static SDL_DisabledEventBlock * SDL_disabled_events[256]
Definition: SDL_events.c:57
#define SDL_AtomicSet
#define SDL_UnlockMutex
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93

Variable Documentation