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/*
system_call.c:
Copyright (C) 2007 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"
typedef struct {
OPDS h;
MYFLT *res;
MYFLT *ktrig;
STRINGDAT *commandLine;
MYFLT *nowait;
char *command;
MYFLT prv_ktrig;
CSOUND *csound;
} SYSTEM;
#if defined(WIN32)
#include <process.h>
static void threadroutine(void *p)
{
SYSTEM *pp = (SYSTEM *) p;
system(pp->command);
pp->csound->Free(pp->csound,pp->command);
}
static int32_t call_system(CSOUND *csound, SYSTEM *p)
{
_flushall();
if ( (int32_t)*p->nowait != 0 ) {
p->command = csound->Strdup(csound, p->commandLine->data);
p->csound = csound;
_beginthread( threadroutine, 0, p);
*p->res = OK;
}
else {
*p->res = (MYFLT) system( (char *)p->commandLine->data );
}
return OK;
}
#else
#include <unistd.h>
#ifdef __APPLE__
#include <TargetConditionals.h>
#endif
static int32_t call_system(CSOUND *csound, SYSTEM *p)
{
IGN(csound);
#if TARGET_OS_IPHONE
return OK;
#else
if ((int32_t)*p->nowait!=0) {
if ((*p->res = fork()))
return OK;
else {
if (UNLIKELY(system((char*)p->commandLine->data)<0)) exit(1);
exit(0);
}
}
else {
*p->res = (MYFLT)system((char*)p->commandLine->data);
return OK;
}
#endif
}
#endif
int32_t call_system_i(CSOUND *csound, SYSTEM *p)
{
if (*p->ktrig <= FL(0.0)) {
*p->res=FL(0.0);
return OK;
}
else
return call_system(csound, p);
}
int32_t call_system_set(CSOUND *csound, SYSTEM *p)
{
IGN(csound);
p->prv_ktrig = FL(0.0);
return OK;
}
int32_t
call_system_k(CSOUND *csound, SYSTEM *p)
{
if (*p->ktrig == p->prv_ktrig)
return OK;
p->prv_ktrig = *p->ktrig;
if (p->prv_ktrig > FL(0.0))
return (call_system(csound, p));
return OK;
}
#define S(x) sizeof(x)
static OENTRY system_localops[] = {
{ "system", S(SYSTEM), 0, 3, "k", "kSO",
(SUBR)call_system_set,(SUBR)call_system_k},
{ "system_i", S(SYSTEM), 0, 1, "i", "iSo", (SUBR)call_system_i}
};
LINKAGE_BUILTIN(system_localops)
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