uGFX/ugfx
2
0
Fork 0
Code Issues 2 Pull requests Projects Releases Wiki Activity

GOS POSIX fixes

Browse source
This commit is contained in:
Joel Bodenmann 2013-07-22 05:50:31 +02:00
parent abca557bab
commit 7b4488267d
1 changed files with 33 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

65
src/gos/posix.c
View file

@ -15,6 +15,7 @@
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
static gfxMutex SystemMutex;
@ -24,11 +25,11 @@ void _gosInit(void) {
}
void gfxSystemLock(void) {
gfxMutexEnter(&SystemMutex);
//gfxMutexEnter(&SystemMutex);
}
void gfxSystemUnlock(void) {
gfxMutexLeave(&SystemMutex);
//gfxMutexLeave(&SystemMutex);
}
void gfxHalt(const char *msg) {
@ -95,30 +96,30 @@ threadreturn_t gfxThreadWait(gfxThreadHandle thread) {
return retval;
}
void gfxSemInit(gfxSem *psem, semcount_t val, semcount_t limit) {
pthread_mutex_init(&psem->mtx, 0);
pthread_cond_init(&psem->cond, 0);
pthread_mutex_lock(&psem->mtx);
psem->cnt = val;
psem->max = limit;
pthread_mutex_unlock(&psem->mtx);
void gfxSemInit(gfxSem *pSem, semcount_t val, semcount_t limit) {
pthread_mutex_init(&pSem->mtx, 0);
pthread_cond_init(&pSem->cond, 0);
pthread_mutex_lock(&pSem->mtx);
pSem->cnt = val;
pSem->max = limit;
pthread_mutex_unlock(&pSem->mtx);
}
void gfxSemDestroy(gfxSem *psem) {
pthread_mutex_destroy(&psem->mtx);
pthread_cond_destroy(&psem->cond);
void gfxSemDestroy(gfxSem *pSem) {
pthread_mutex_destroy(&pSem->mtx);
pthread_cond_destroy(&pSem->cond);
}
bool_t gfxSemWait(gfxSem *psem, delaytime_t ms) {
pthread_mutex_lock(&psem->mtx);
bool_t gfxSemWait(gfxSem *pSem, delaytime_t ms) {
pthread_mutex_lock(&pSem->mtx);
switch (ms) {
case TIME_INFINITE:
while (!psem->val)
pthread_cond_wait(&psem->cond, &psem->mtx);
while (!pSem->cnt)
pthread_cond_wait(&pSem->cond, &pSem->mtx);
break;
case TIME_IMMEDIATE:
if (!psem->val) {
pthread_mutex_unlock(&psem->mtx);
if (!pSem->cnt) {
pthread_mutex_unlock(&pSem->mtx);
return FALSE;
}
break;
@ -130,27 +131,27 @@ bool_t gfxSemWait(gfxSem *psem, delaytime_t ms) {
gettimeofday(&now);
tm.tv_sec = now.tv_sec + ms / 1000;
tm.tv_nsec = (now.tv_usec + ms % 1000) * 1000;
while (!psem->val) {
if (pthread_cond_timedwait(&psem->cond, &psem->mtx, &tm) == ETIMEDOUT) {
pthread_mutex_unlock(&psem->mtx);
while (!pSem->cnt) {
if (pthread_cond_timedwait(&pSem->cond, &pSem->mtx, &tm) == ETIMEDOUT) {
pthread_mutex_unlock(&pSem->mtx);
return FALSE;
}
}
}
break;
}
psem->val--;
pthread_mutex_unlock(&psem->mtx);
pSem->cnt--;
pthread_mutex_unlock(&pSem->mtx);
return TRUE;
}
void gfxSemSignal(gfxSem *psem) {
pthread_mutex_lock(&psem->mtx);
if (psem->val < psem->limit) {
psem->val++;
pthread_cond_signal(&psem->cond);
void gfxSemSignal(gfxSem *pSem) {
pthread_mutex_lock(&pSem->mtx);
if (pSem->cnt < pSem->max) {
pSem->cnt++;
pthread_cond_signal(&pSem->cond);
}
pthread_mutex_unlock(&psem->mtx);
pthread_mutex_unlock(&pSem->mtx);
}
semcount_t gfxSemCounter(gfxSem *pSem) {
@ -158,9 +159,9 @@ semcount_t gfxSemCounter(gfxSem *pSem) {
// The locking is really only required if obtaining the count is a divisible operation
// which it might be on a 8/16 bit processor with a 32 bit semaphore count.
pthread_mutex_lock(&psem->mtx);
res = psem->cnt;
pthread_mutex_unlock(&psem->mtx);
pthread_mutex_lock(&pSem->mtx);
res = pSem->cnt;
pthread_mutex_unlock(&pSem->mtx);
return res;
}