#include <algorithm>
#include <cstring>
+#include <msp/core/except.h>
#include "handle.h"
#include "memory.h"
namespace Msp {
namespace IO {
-Memory::Memory(char *d, unsigned s, Mode m)
-{
- init(d, d+s, m);
-}
-
Memory::Memory(char *b, char *e, Mode m)
{
- init(b, e, m);
-}
-
-Memory::Memory(const char *cd, unsigned s)
-{
- char *d = const_cast<char *>(cd);
- init(d, d+s, M_READ);
+ begin = b;
+ end = e;
+ pos = begin;
+ mode = m;
}
-Memory::Memory(const char *b, const char *e)
+void Memory::set_block(bool)
{
- init(const_cast<char *>(b), const_cast<char *>(e), M_READ);
+ throw unsupported("Memory::set_block");
}
-void Memory::init(char *b, char *e, Mode m)
+void Memory::set_inherit(bool)
{
- begin = b;
- end = e;
- pos = begin;
- mode = m;
+ throw unsupported("Memory::set_inherit");
}
-unsigned Memory::do_write(const char *buf, unsigned size)
+size_t Memory::do_write(const char *buf, size_t size)
{
check_access(M_WRITE);
- size = min<unsigned>(size, end-pos);
+ size = min<size_t>(size, end-pos);
memcpy(pos, buf, size);
pos += size;
return size;
}
-unsigned Memory::do_read(char *buf, unsigned size)
+size_t Memory::do_read(char *buf, size_t size)
{
check_access(M_READ);
return 0;
}
- size = min<unsigned>(size, end-pos);
+ size = min<size_t>(size, end-pos);
memcpy(buf, pos, size);
pos += size;
return size;
}
-unsigned Memory::put(char c)
+size_t Memory::put(char c)
{
check_access(M_WRITE);
return static_cast<unsigned char>(*pos++);
}
+const Handle &Memory::get_handle(Mode)
+{
+ throw unsupported("Memory::get_handle");
+}
+
SeekOffset Memory::seek(SeekOffset off, SeekType type)
{
char *new_pos;
throw invalid_argument("Memory::seek");
if(new_pos<begin || new_pos>end)
- throw out_of_range("Memory::seek");
+ throw bad_seek(off, type);
pos = new_pos;
eof_flag = false;