Move files to prepare for assimilation into core

[libs/core.git] / source / pipe.cpp

diff --git a/source/pipe.cpp b/source/pipe.cpp
deleted file mode 100644 (file)
index b3735aa..0000000
--- a/source/pipe.cpp
+++ /dev/null
@@ -1,182 +0,0 @@
-#ifndef WIN32
-#include <fcntl.h>
-#include <errno.h>
-#endif
-#include <msp/strings/formatter.h>
-#include "pipe.h"
-
-using namespace std;
-
-namespace Msp {
-namespace IO {
-
-Pipe::Pipe()
-{
-#ifdef WIN32
-       string name = format("\\\\.\\pipe\\%u.%p", GetCurrentProcessId(), this);
-       handle[0] = CreateNamedPipe(name.c_str(), PIPE_ACCESS_INBOUND|FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE, 1, 1024, 1024, 0, 0);
-       if(handle[0]==INVALID_HANDLE_VALUE)
-               throw SystemError("Unable to create pipe", GetLastError());
-
-       handle[1] = CreateFile(name.c_str(), GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
-       if(handle[1]==INVALID_HANDLE_VALUE)
-       {
-               unsigned err = GetLastError();
-               CloseHandle(handle[0]);
-               throw SystemError("Unable to create pipe", err);
-       }
-
-       overlapped = 0;
-       event = CreateEvent(0, true, false, 0);
-       buf_size = 1024;
-       buffer = new char[buf_size];
-       buf_avail = 0;
-       buf_next = buffer;
-#else
-       if(pipe(handle)==-1)
-               throw SystemError("Unable to create pipe", errno);
-#endif
-
-       set_events(P_INPUT);
-}
-
-Pipe::~Pipe()
-{
-       close();
-}
-
-void Pipe::close()
-{
-       set_events(P_NONE);
-
-       signal_flush_required.emit();
-#ifdef WIN32
-       CloseHandle(handle[0]);
-       CloseHandle(handle[1]);
-#else
-       ::close(handle[0]);
-       ::close(handle[1]);
-       signal_closed.emit();
-#endif
-}
-
-void Pipe::set_block(bool b)
-{
-       mode = (mode&~M_NONBLOCK);
-       if(b)
-               mode = (mode|M_NONBLOCK);
-
-#ifndef WIN32
-       int flags = fcntl(handle[0], F_GETFD);
-       fcntl(handle[0], F_SETFL, (flags&O_NONBLOCK)|(b?0:O_NONBLOCK));
-       flags = fcntl(handle[1], F_GETFD);
-       fcntl(handle[1], F_SETFL, (flags&O_NONBLOCK)|(b?0:O_NONBLOCK));
-#endif
-}
-
-unsigned Pipe::do_write(const char *buf, unsigned size)
-{
-       if(size==0)
-               return 0;
-
-#ifdef WIN32
-       DWORD ret;
-       if(!WriteFile(handle[1], buf, size, &ret, 0))
-               throw SystemError("Writing to pipe failed", GetLastError());
-#else
-       int ret = ::write(handle[1], buf, size);
-       if(ret==-1)
-       {
-               if(errno==EAGAIN)
-                       return 0;
-               else
-                       throw SystemError("Writing to pipe failed", errno);
-       }
-#endif
-
-       return ret;
-}
-
-unsigned Pipe::do_read(char *buf, unsigned size)
-{
-       if(size==0)
-               return 0;
-
-#ifdef WIN32
-       // Initiate overlapped read if needed
-       get_event_handle();
-
-       if(overlapped)
-       {
-               DWORD ret;
-               if(!GetOverlappedResult(handle[0], overlapped, &ret, !buf_avail))
-                       throw SystemError("Reading from pipe failed", GetLastError());
-               else
-               {
-                       buf_avail += ret;
-                       delete overlapped;
-                       overlapped = 0;
-               }
-       }
-
-       unsigned ret = min(buf_avail, size);
-       memcpy(buf, buf_next, ret);
-       buf_next += ret;
-       buf_avail -= ret;
-
-       // Initiate another overlapped read in case someone is polling us
-       get_event_handle();
-#else
-       int ret = ::read(handle[0], buf, size);
-       if(ret==-1)
-       {
-               if(errno==EAGAIN)
-                       return 0;
-               else
-                       throw SystemError("Reading from pipe failed", errno);
-       }
-#endif
-
-       if(ret==0)
-       {
-               eof_flag = true;
-               signal_end_of_file.emit();
-       }
-
-       return ret;
-}
-
-Handle Pipe::get_event_handle()
-{
-#ifdef WIN32
-       if(!overlapped && !buf_avail)
-       {
-               overlapped = new OVERLAPPED;
-               memset(overlapped, 0, sizeof(OVERLAPPED));
-               overlapped->hEvent = event;
-
-               DWORD ret;
-               buf_next = buffer;
-               if(!ReadFile(handle[0], buffer, buf_size, &ret, overlapped))
-               {
-                       unsigned err = GetLastError();
-                       if(err!=ERROR_IO_PENDING)
-                               throw SystemError("Failed to start an overlapped read", err);
-               }
-               else
-               {
-                       buf_avail = ret;
-                       delete overlapped;
-                       overlapped = 0;
-                       SetEvent(event);
-               }
-       }
-
-       return event;
-#else
-       return handle[0];
-#endif
-}
-
-} // namespace IO
-} // namespace Msp