Cross Reference: /illumos-gate/usr/src/lib/libast/common/sfio/sfpool.c

Lines Matching defs:pf
25 **	If pf is not nil, f is pooled with pf and f becomes current;
246 Sfio_t* sfpool(reg Sfio_t* f, reg Sfio_t* pf, reg int mode)
248 Sfio_t* sfpool(f,pf,mode)
250 reg Sfio_t*	pf;
260 	if(!f)	/* return head of pool of pf regardless of lock states */
261 	{	if(!pf)
263 		else if(!pf->pool || pf->pool == &_Sfpool)
264 			return pf;
265 		else	return pf->pool->sf[0];
277 	if(pf)
278 	{	SFMTXLOCK(pf);
279 		if((pf->mode&SF_RDWR) != pf->mode && _sfmode(pf,0,0) < 0)
282 			SFMTXUNLOCK(pf);
285 		if(pf->disc == _Sfudisc)
286 			(void)sfclose((*_Sfstack)(pf,NIL(Sfio_t*)));
289 	/* f already in the same pool with pf */
290 	if(f == pf || (pf && f->pool == pf->pool && f->pool != &_Sfpool) )
293 		if(pf)
294 			SFMTXUNLOCK(pf);
295 		return pf;
301 	if(pf)
302 		SFLOCK(pf,0);
304 	if(!pf)	/* deleting f from its current pool */
306 			for(k = 0; k < p->n_sf && pf == NIL(Sfio_t*); ++k)
308 					pf = p->sf[k];
309 		if(!pf) /* already isolated */
317 		if(!pf->pool || pf->pool == &_Sfpool || pf->pool->n_sf <= 0 )
318 			rv = pf;
319 		else	rv = pf->pool->sf[0];	/* return head of old pool */
323 	if(pf->pool && pf->pool != &_Sfpool) /* always use current mode */
324 		mode = pf->pool->mode;
329 		if(SFMODE(pf,1) != SF_WRITE && _sfmode(pf,SF_WRITE,1) < 0)
338 	if(!(p = pf->pool) || p == &_Sfpool) /* making a new pool */
341 		if(_sfpmove(pf,-1) < 0) /* isolate pf from its current pool */
343 		pf->pool = p;
344 		p->sf[0] = pf;
348 	f->pool = p;	/* add f to pf's pool */
352 	/**/ASSERT(p->sf[0] == pf && p->sf[p->n_sf-1] == f);
353 	SFOPEN(pf,0);
357 	rv = pf;
364 	if(pf)
365 	{	SFOPEN(pf,0);
366 		SFMTXUNLOCK(pf);