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#include "CopyJob.h"
#include "General.h"
#include "config.h"
CopyJob::CopyJob(Handle * as, Handle * ad, ssize_t asiz, bool ads, bool add) : s(as), d(ad), ds(ads), dd(add), siz(asiz), cursiz(0), r(0), w(0), tw(0) {
s->SetNonBlock();
d->SetNonBlock();
WaitFor(s, W4_READING);
}
CopyJob::~CopyJob() {
if (ds) {
delete s;
}
if (dd) {
delete d;
}
}
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));
// cerr << "CopyJob: read " << r << " bytes." << endl;
}
catch (IOAgain e) {
WaitFor(s, W4_READING);
Suspend(TASK_ON_HOLD);
}
if (!r) {
return TASK_DONE;
}
tw = 0;
case 1:
current = 1;
try {
w = d->write(buffer + tw, r - tw);
}
catch (IOAgain e) {
WaitFor(d, W4_WRITING);
Suspend(TASK_ON_HOLD);
}
// cerr << "CopyJob: wrote " << w << " bytes." << endl;
tw += w;
if (r != tw) {
// cerr << "CopyJob: We did expect to write a total of " << r << " bytes and we achieved " << tw << " bytes so far.\n";
WaitFor(d, W4_WRITING);
Suspend(TASK_ON_HOLD);
}
current = 0;
}
cursiz += r;
if (!s->IsClosed() && (siz != cursiz)) {
WaitFor(s, W4_READING);
Suspend(TASK_ON_HOLD);
}
return TASK_DONE;
}
String CopyJob::GetName() {
return (String(_("CopyJob from ")) + s->GetName() + _(" to ") + d->GetName());
}
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