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/*
auxfd.c:
Copyright (C) 1991 Barry Vercoe, John ffitch
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "csoundCore.h" /* AUXFD.C */
static CS_NOINLINE void auxchprint(CSOUND *, INSDS *);
static CS_NOINLINE void fdchprint(CSOUND *, INSDS *);
/* allocate an auxds, or expand an old one */
/* call only from init (xxxset) modules */
void csoundAuxAlloc(CSOUND *csound, size_t nbytes, AUXCH *auxchp)
{
if (auxchp->auxp != NULL) {
/* if allocd with same size, just clear to zero */
if (nbytes == (size_t)auxchp->size) {
memset(auxchp->auxp, 0, nbytes);
return;
}
else {
void *tmp = auxchp->auxp;
/* if size change only, free the old space and re-allocate */
auxchp->auxp = NULL;
csound->Free(csound, tmp);
}
}
else { /* else link in new auxch blk */
auxchp->nxtchp = csound->curip->auxchp;
csound->curip->auxchp = auxchp;
}
/* now alloc the space and update the internal data */
auxchp->size = nbytes;
auxchp->auxp = csound->Calloc(csound, nbytes);
auxchp->endp = (char*)auxchp->auxp + nbytes;
if (UNLIKELY(csound->oparms->odebug))
auxchprint(csound, csound->curip);
}
static uintptr_t alloc_thread(void *p) {
AUXASYNC *pp = (AUXASYNC *) p;
CSOUND *csound = pp->csound;
AUXCH newm;
char *ptr;
if (pp->auxchp->auxp == NULL) {
/* Allocate new memory */
newm.size = pp->nbytes;
newm.auxp = csound->Calloc(csound, pp->nbytes);
newm.endp = (char*) newm.auxp + pp->nbytes;
ptr = (char *) newm.auxp;
newm = *(pp->notify(csound, pp->userData, &newm));
/* check that the returned pointer is not
NULL and that is not the memory we have
just allocated in case the old memory was
never swapped back.
*/
if (newm.auxp != NULL && newm.auxp != ptr)
csound->Free(csound, newm.auxp);
} else {
csoundAuxAlloc(csound,pp->nbytes,pp->auxchp);
pp->notify(csound, pp->userData, pp->auxchp);
}
return 0;
}
/* Allocate an auxds asynchronously and
pass the newly allocated memory via a
callback, where it can be swapped if necessary.
*/
int csoundAuxAllocAsync(CSOUND *csound, size_t nbytes, AUXCH *auxchp,
AUXASYNC *as, aux_cb cb, void *userData) {
as->csound = csound;
as->nbytes = nbytes;
as->auxchp = auxchp;
as->notify = cb;
as->userData = userData;
if (UNLIKELY(csoundCreateThread(alloc_thread, as) == NULL))
return CSOUND_ERROR;
else
return CSOUND_SUCCESS;
}
/* put fdchp into chain of fd's for this instr */
/* call only from init (xxxset) modules */
void fdrecord(CSOUND *csound, FDCH *fdchp)
{
fdchp->nxtchp = csound->curip->fdchp;
csound->curip->fdchp = fdchp;
if (UNLIKELY(csound->oparms->odebug))
fdchprint(csound, csound->curip);
}
/* close a file and remove from fd chain */
/* call only from inits, after fdrecord */
void csound_fd_close(CSOUND *csound, FDCH *fdchp)
{
FDCH *prvchp = NULL, *nxtchp;
nxtchp = csound->curip->fdchp; /* from current insds, */
while (LIKELY(nxtchp != NULL)) { /* chain through fdlocs */
if (UNLIKELY(nxtchp == fdchp)) { /* till find this one */
void *fd = fdchp->fd;
if (LIKELY(fd)) {
fdchp->fd = NULL; /* then delete the fd */
csoundFileClose(csound, fd); /* close the file & */
}
if (prvchp)
prvchp->nxtchp = fdchp->nxtchp; /* unlnk from fdchain */
else
csound->curip->fdchp = fdchp->nxtchp;
if (UNLIKELY(csound->oparms->odebug))
fdchprint(csound, csound->curip);
return;
}
prvchp = nxtchp;
nxtchp = nxtchp->nxtchp;
}
fdchprint(csound, csound->curip);
csound->Die(csound, Str("csound_fd_close: no record of fd %p"), fdchp->fd);
}
/* release all xds in instr auxp chain */
/* called by insert at orcompact */
void auxchfree(CSOUND *csound, INSDS *ip)
{
if (UNLIKELY(csound->oparms->odebug))
auxchprint(csound, ip);
while (LIKELY(ip->auxchp != NULL)) { /* for all auxp's in chain: */
void *auxp = (void*) ip->auxchp->auxp;
AUXCH *nxt = ip->auxchp->nxtchp;
memset((void*) ip->auxchp, 0, sizeof(AUXCH)); /* delete the pntr */
csound->Free(csound, auxp); /* & free the space */
ip->auxchp = nxt;
}
if (UNLIKELY(csound->oparms->odebug))
auxchprint(csound, ip);
}
/* close all files in instr fd chain */
/* called by insert on deact & expire */
/* (also musmon on s-code, & fgens for gen01) */
void fdchclose(CSOUND *csound, INSDS *ip)
{
if (UNLIKELY(csound->oparms->odebug))
fdchprint(csound, ip);
/* for all fd's in chain: */
for ( ; ip->fdchp != NULL; ip->fdchp = ip->fdchp->nxtchp) {
void *fd = ip->fdchp->fd;
if (LIKELY(fd)) {
ip->fdchp->fd = NULL; /* delete the fd */
csoundFileClose(csound, fd); /* & close the file */
}
}
if (UNLIKELY(csound->oparms->odebug))
fdchprint(csound, ip);
}
/* print the xp chain for this insds blk */
static CS_NOINLINE void auxchprint(CSOUND *csound, INSDS *ip)
{
AUXCH *curchp;
char *name = csound->engineState.instrtxtp[ip->insno]->insname;
if (name)
csoundMessage(csound, Str("auxlist for instr %s [%d] (%p):\n"),
name, ip->insno, ip);
else
csoundMessage(csound, Str("auxlist for instr %d (%p):\n"),
ip->insno, ip);
/* chain through auxlocs */
for (curchp = ip->auxchp; curchp != NULL; curchp = curchp->nxtchp)
csoundMessage(csound,
Str("\tauxch at %p: size %zu, auxp %p, endp %p\n"),
curchp, curchp->size, curchp->auxp, curchp->endp);
}
/* print the fd chain for this insds blk */
static CS_NOINLINE void fdchprint(CSOUND *csound, INSDS *ip)
{
FDCH *curchp;
char *name = csound->engineState.instrtxtp[ip->insno]->insname;
if (name)
csoundMessage(csound, Str("fdlist for instr %s [%d] (%p):"),
name, ip->insno, ip);
else
csoundMessage(csound, Str("fdlist for instr %d (%p):"), ip->insno, ip);
/* chain through fdlocs */
for (curchp = ip->fdchp; curchp != NULL; curchp = curchp->nxtchp)
csoundMessage(csound, Str(" fd %p in %p"), curchp->fd, curchp);
csoundMessage(csound, "\n");
}
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