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#include <qpdf/Pl_Buffer.hh>
#include <qpdf/Pl_Count.hh>
#include <qpdf/Pl_Discard.hh>
#include <qpdf/QUtil.hh>
#include <stdlib.h>
#include <stdexcept>
#include <iostream>
#include <cassert>
#include <cstring>
static unsigned char* uc(char const* s)
{
return QUtil::unsigned_char_pointer(s);
}
int main()
{
{
// Test that buffers can be copied by value.
Buffer bc1(2);
unsigned char* bc1p = bc1.getBuffer();
bc1p[0] = 'Q';
bc1p[1] = 'W';
Buffer bc2(bc1);
bc1p[0] = 'R';
unsigned char* bc2p = bc2.getBuffer();
assert(bc2p != bc1p);
assert(bc2p[0] == 'Q');
assert(bc2p[1] == 'W');
bc2 = bc1;
bc2p = bc2.getBuffer();
assert(bc2p != bc1p);
assert(bc2p[0] == 'R');
assert(bc2p[1] == 'W');
}
try
{
Pl_Discard discard;
Pl_Count count("count", &discard);
Pl_Buffer bp1("bp1", &count);
bp1.write(uc("12345"), 5);
bp1.write(uc("67890"), 5);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
bp1.write(uc("abcde"), 5);
bp1.write(uc("fghij"), 6);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
Buffer* b = bp1.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
bp1.write(uc("qwert"), 5);
bp1.write(uc("yuiop"), 6);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
b = bp1.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
Pl_Buffer bp2("bp2");
bp2.write(uc("moo"), 3);
bp2.write(uc("quack"), 6);
try
{
delete bp2.getBuffer();
}
catch (std::exception& e)
{
std::cout << e.what() << std::endl;
}
bp2.finish();
b = bp2.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
unsigned char lbuf[10];
Buffer b1(lbuf, 10);
if (! ((b1.getBuffer() == lbuf) &&
(b1.getSize() == 10)))
{
throw std::logic_error("hand-created buffer is not as expected");
}
Pl_Buffer bp3("bp3");
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
// Should be able to call getBuffer again and get an empty buffer
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
// Also can write 0 and do it.
bp3.write(uc(""), 0);
bp3.finish();
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
// Malloc buffer should behave similarly.
Pl_Buffer bp4("bp4");
bp4.write(uc("asdf"), 4);
unsigned char* mbuf;
size_t len;
try
{
bp4.getMallocBuffer(&mbuf, &len);
assert(false);
}
catch (std::logic_error& e)
{
std::cout << "malloc buffer logic error: " << e.what() << std::endl;
}
bp4.finish();
bp4.getMallocBuffer(&mbuf, &len);
assert(len == 4);
assert(memcmp(mbuf, uc("asdf"), 4) == 0);
free(mbuf);
bp4.write(uc(""), 0);
bp4.finish();
bp4.getMallocBuffer(&mbuf, &len);
assert(mbuf == nullptr);
assert(len == 0);
}
catch (std::exception& e)
{
std::cout << "unexpected exception: " << e.what() << std::endl;
exit(2);
}
std::cout << "done" << std::endl;
return 0;
}
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