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#include "CopyJob.h"
#include "General.h"
CopyJob::CopyJob(Handle * as, Handle * ad, ssize_t asiz, bool ads) : s(as), d(ad), ds(ads), siz(asiz), cursiz(0), r(0) {
WaitFor(s, W4_STICKY | W4_READING);
WaitFor(d, W4_STICKY | W4_WRITING);
}
CopyJob::~CopyJob() { }
int CopyJob::Do() throw (GeneralException) {
int tr;
switch (current) {
case 0:
tr = siz >= 0 ? siz - cursiz : COPY_BUFSIZ;
try {
r = s->read(buffer, MIN(COPY_BUFSIZ, tr));
}
catch (IOAgain e) {
Suspend(TASK_ON_HOLD);
}
case 1:
if (!r) {
return TASK_DONE;
}
try {
d->write(buffer, r);
}
catch (IOAgain e) {
current = 1;
Suspend(TASK_ON_HOLD);
}
current = 0;
}
cursiz += r;
if (!s->IsClosed() && (siz != cursiz)) {
throw TaskSwitch();
}
if (ds) {
delete s;
}
return TASK_DONE;
}
String CopyJob::GetName() {
return (String("CopyJob from ") + s->GetName() + " to " + d->GetName());
}
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