/usr/include/allegro/platform/aintunix.h is in liballegro4-dev 2:4.4.2-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* /\ _ \ /\_ \ /\_ \
* \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___
* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
* /\____/
* \_/__/
*
* Some definitions for internal use by the Unix library code.
*
* By Shawn Hargreaves.
*
* See readme.txt for copyright information.
*/
#ifndef AINTUNIX_H
#define AINTUNIX_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef ALLEGRO_HAVE_LIBPTHREAD
/* Synchronization routines using POSIX threads */
AL_FUNC(void *, _unix_create_mutex, (void));
AL_FUNC(void, _unix_destroy_mutex, (void *handle));
AL_FUNC(void, _unix_lock_mutex, (void *handle));
AL_FUNC(void, _unix_unlock_mutex, (void *handle));
#else
/* Asynchronous event processing with SIGALRM */
AL_FUNC(void, _sigalrm_request_abort, (void));
AL_FUNCPTR(void, _sigalrm_timer_interrupt_handler, (unsigned long interval));
#endif
/* Macros to enable and disable interrupts */
#define DISABLE() _unix_bg_man->disable_interrupts()
#define ENABLE() _unix_bg_man->enable_interrupts()
/* Helper for locating config files */
AL_FUNC(int, _unix_find_resource, (char *dest, AL_CONST char *resource, int size));
/* Generic system driver entry for finding the executable */
AL_FUNC(void, _unix_get_executable_name, (char *output, int size));
/* Helper for setting os_type */
AL_FUNC(void, _unix_read_os_type, (void));
/* Helper for yield CPU */
AL_FUNC(void, _unix_yield_timeslice, (void));
/* Unix rest function */
AL_FUNC(void, _unix_rest, (unsigned int, AL_METHOD(void, callback, (void))));
/* Module support */
AL_FUNC(void, _unix_load_modules, (int system_driver_id));
AL_FUNC(void, _unix_unload_modules, (void));
/* Dynamic driver lists, for modules */
AL_VAR(_DRIVER_INFO *, _unix_gfx_driver_list);
AL_VAR(_DRIVER_INFO *, _unix_digi_driver_list);
AL_VAR(_DRIVER_INFO *, _unix_midi_driver_list);
AL_FUNC(void, _unix_driver_lists_init, (void));
AL_FUNC(void, _unix_driver_lists_shutdown, (void));
AL_FUNC(void, _unix_register_gfx_driver, (int id, GFX_DRIVER *driver, int autodetect, int priority));
AL_FUNC(void, _unix_register_digi_driver, (int id, DIGI_DRIVER *driver, int autodetect, int priority));
AL_FUNC(void, _unix_register_midi_driver, (int id, MIDI_DRIVER *driver, int autodetect, int priority));
/* Get size of a memory page in bytes */
AL_FUNC(size_t, _unix_get_page_size, (void));
#ifdef ALLEGRO_WITH_XWINDOWS
AL_FUNCPTR(void, _xwin_keyboard_interrupt, (int pressed, int code));
AL_FUNCPTR(void, _xwin_keyboard_focused, (int focused, int state));
AL_FUNCPTR(void, _xwin_mouse_interrupt, (int x, int y, int z, int w, int buttons));
AL_FUNCPTR(void, _xwin_timer_interrupt, (unsigned long interval));
AL_ARRAY(_DRIVER_INFO, _xwin_gfx_driver_list);
AL_ARRAY(_DRIVER_INFO, _xwin_keyboard_driver_list);
AL_ARRAY(_DRIVER_INFO, _xwin_mouse_driver_list);
AL_ARRAY(_DRIVER_INFO, _xwin_timer_driver_list);
AL_FUNC(void, _xwin_handle_input, (void));
AL_FUNC(void, _xwin_private_handle_input, (void));
#ifndef ALLEGRO_MULTITHREADED
AL_VAR(int, _xwin_missed_input);
#define XLOCK() \
do { \
_xwin.lock_count++; \
} while (0)
#define XUNLOCK() \
do { \
if (_xwin.lock_count == 1) { \
while(_xwin_missed_input) { \
if (_xwin_input_handler) \
_xwin_input_handler(); \
else \
_xwin_private_handle_input(); \
--_xwin_missed_input; \
} \
} \
_xwin.lock_count--; \
} while (0)
#else
#define XLOCK() \
do { \
if (_xwin.mutex) \
_unix_lock_mutex (_xwin.mutex); \
_xwin.lock_count++; \
} while (0)
#define XUNLOCK() \
do { \
if (_xwin.mutex) \
_unix_unlock_mutex (_xwin.mutex); \
_xwin.lock_count--; \
} while (0)
#endif
#endif
#ifdef ALLEGRO_WITH_OSSDIGI
/* So the setup program can read what we detected */
AL_VAR(int, _oss_fragsize);
AL_VAR(int, _oss_numfrags);
#endif
#ifdef __cplusplus
}
#endif
#ifdef ALLEGRO_LINUX
#include "aintlnx.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Typedef for background functions, called frequently in the background.
* `threaded' is nonzero if the function is being called from a thread.
*/
typedef void (*bg_func) (int threaded);
/* Background function manager -- responsible for calling background
* functions. `int' methods return -1 on failure, 0 on success. */
struct bg_manager
{
int multi_threaded;
int (*init) (void);
void (*exit) (void);
int (*register_func) (bg_func f);
int (*unregister_func) (bg_func f);
void (*enable_interrupts) (void);
void (*disable_interrupts) (void);
int (*interrupts_disabled) (void);
};
extern struct bg_manager _bg_man_pthreads;
extern struct bg_manager _bg_man_sigalrm;
extern struct bg_manager *_unix_bg_man;
extern _DRIVER_INFO _linux_joystick_driver_list[]; /* also in aintlnx.h */
#ifdef __cplusplus
}
#endif
#endif /* ifndef AINTUNIX_H */
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