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Add support for file descriptor to FileStream (#832)

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Add support for file descriptor
This commit is contained in:
safu9 2018-10-11 01:25:02 +09:00 committed by Stephen F. Booth
parent 8f6fe0b16c
commit 036a0317b9
2 changed files with 34 additions and 0 deletions
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29
taglib/toolkit/tfilestream.cpp
View File

@ -58,6 +58,11 @@ namespace
#endif
}
FileHandle openFile(const int fileDescriptor, bool readOnly)
{
return InvalidFileHandle;
}
void closeFile(FileHandle file)
{
CloseHandle(file);
@ -98,6 +103,11 @@ namespace
return fopen(path, readOnly ? "rb" : "rb+");
}
FileHandle openFile(const int fileDescriptor, bool readOnly)
{
return fdopen(fileDescriptor, readOnly ? "rb" : "rb+");
}
void closeFile(FileHandle file)
{
fclose(file);
@ -158,6 +168,25 @@ FileStream::FileStream(FileName fileName, bool openReadOnly)
}
}
FileStream::FileStream(int fileDescriptor, bool openReadOnly)
: d(new FileStreamPrivate(""))
{
// First try with read / write mode, if that fails, fall back to read only.
if(!openReadOnly)
d->file = openFile(fileDescriptor, false);
if(d->file != InvalidFileHandle)
d->readOnly = false;
else
d->file = openFile(fileDescriptor, true);
if(d->file == InvalidFileHandle)
{
debug("Could not open file using file descriptor");
}
}
FileStream::~FileStream()
{
if(isOpen())

5
taglib/toolkit/tfilestream.h
View File

@ -54,6 +54,11 @@ namespace TagLib {
*/
FileStream(FileName file, bool openReadOnly = false);
/*!
* Construct a File object and opens the \a file using file descriptor.
*/
FileStream(int fileDescriptor, bool openReadOnly = false);
/*!
* Destroys this FileStream instance.
*/