WSJT-X/lib/ipcomm.cpp

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#include <QDebug>
#include <QString>
#include <QSharedMemory>
#include <QSystemSemaphore>
#include "../commons.h"
// Multiple instances: KK1D, 17 Jul 2013
QSharedMemory mem_jt9;
// Semaphore not changed, as the acquire/release calls do not
// appear to be used anywhere.
QSystemSemaphore sem_jt9("sem_jt9", 1, QSystemSemaphore::Open);
extern "C" {
bool attach_jt9_();
bool create_jt9_(int nsize);
bool detach_jt9_();
bool lock_jt9_();
bool unlock_jt9_();
struct jt9com * address_jt9_();
int size_jt9_();
// Multiple instances: wrapper for QSharedMemory::setKey()
bool setkey_jt9_(char* mykey, int mykey_len);
bool acquire_jt9_();
bool release_jt9_();
}
bool attach_jt9_() {return mem_jt9.attach();}
bool create_jt9_(int nsize) {return mem_jt9.create(nsize);}
bool detach_jt9_() {return mem_jt9.detach();}
bool lock_jt9_() {return mem_jt9.lock();}
bool unlock_jt9_() {return mem_jt9.unlock();}
struct jt9com * address_jt9_() {return reinterpret_cast<struct jt9com *>(mem_jt9.data());}
int size_jt9_() {return (int)mem_jt9.size();}
// Multiple instances:
bool setkey_jt9_(char* mykey, int mykey_len) {
char *tempstr = (char *)calloc(mykey_len+1,1);
memset(tempstr, 0, mykey_len+1);
strncpy(tempstr, mykey, mykey_len);
QString s1 = QString(QLatin1String(tempstr));
mem_jt9.setKey(s1);
return true;}
bool acquire_jt9_() {return sem_jt9.acquire();}
bool release_jt9_() {return sem_jt9.release();}