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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.io/license.html
*/
#ifndef _GOS_LINUX_H
#define _GOS_LINUX_H
#if GFX_USE_OS_LINUX
// We don't put this in the general sys_options.h as it is Linux specific.
#ifndef GFX_USE_POSIX_SEMAPHORES
#define GFX_USE_POSIX_SEMAPHORES GFXON
#endif
#include <sys/types.h>
#include <stdlib.h>
#include <pthread.h>
#if GFX_USE_POSIX_SEMAPHORES
#include <semaphore.h>
#endif
typedef unsigned long gTicks;
typedef void * gThreadreturn;
typedef unsigned long gDelay;
typedef pthread_t gThread;
typedef int gThreadpriority;
typedef uint32_t gSemcount;
typedef pthread_mutex_t gfxMutex;
#define DECLARE_THREAD_FUNCTION(fnName, param) gThreadreturn fnName(void *param)
#define DECLARE_THREAD_STACK(name, sz) uint8_t name[0];
#define THREAD_RETURN(retval) return retval
#define gfxExit() exit(0)
#define gfxAlloc(sz) malloc(sz)
#define gfxRealloc(p,osz,nsz) realloc(p, nsz)
#define gfxFree(ptr) free(ptr)
#define gfxMillisecondsToTicks(ms) (ms)
#define gfxThreadMe() pthread_self()
#define gfxThreadClose(th) (void)th
#define gfxMutexInit(pmtx) pthread_mutex_init(pmtx, 0)
#define gfxMutexDestroy(pmtx) pthread_mutex_destroy(pmtx)
#define gfxMutexEnter(pmtx) pthread_mutex_lock(pmtx)
#define gfxMutexExit(pmtx) pthread_mutex_unlock(pmtx)
#define gfxSemWaitI(psem) gfxSemWait(psem, gDelayNone)
#define gfxSemSignalI(psem) gfxSemSignal(psem)
#define gDelayNone 0
#define gDelayForever ((gDelay)-1)
#define MAX_SEMAPHORE_COUNT ((gSemcount)-1)
#define gThreadpriorityLow 10
#define gThreadpriorityNormal 0
#define gThreadpriorityHigh -10
#if GFX_USE_POSIX_SEMAPHORES
typedef struct gfxSem {
sem_t sem;
gSemcount max;
} gfxSem;
#else
typedef struct gfxSem {
pthread_mutex_t mtx;
pthread_cond_t cond;
gSemcount cnt;
gSemcount max;
} gfxSem;
#endif
/*===========================================================================*/
/* Function declarations. */
/*===========================================================================*/
void gfxYield(void);
void gfxHalt(const char *msg);
void gfxSleepMilliseconds(gDelay ms);
void gfxSleepMicroseconds(gDelay ms);
gTicks gfxSystemTicks(void);
void gfxSystemLock(void);
void gfxSystemUnlock(void);
void gfxSemInit(gfxSem *psem, gSemcount val, gSemcount limit);
void gfxSemDestroy(gfxSem *psem);
gBool gfxSemWait(gfxSem *psem, gDelay ms);
void gfxSemSignal(gfxSem *psem);
gThread gfxThreadCreate(void *stackarea, size_t stacksz, gThreadpriority prio, DECLARE_THREAD_FUNCTION((*fn),p), void *param);
gThreadreturn gfxThreadWait(gThread thread);
#endif /* GFX_USE_OS_LINUX */
#endif /* _GOS_LINUX_H */
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