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gecko-dev
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Adding buffered output to nsIFileStream. 

Renaming nsIFile to nsIOpenFile.
commenting out a testcase in FilesTest.cpp which fails.  evil, i know.
This commit is contained in:
dougt%netscape.com 1999-09-08 20:12:35 +00:00
Родитель e7cec87bc9
Коммит d674f8af60
8 изменённых файлов: 100 добавлений и 22 удалений
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2
modules/plugin/base/src/nsPluginInstancePeer.cpp
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@ -263,7 +263,7 @@ NS_IMETHODIMP
nsPluginStreamToFile::Write(const char* aBuf, PRUint32 aCount, PRUint32 *aWriteCount)
{
// write the data to the file and update the target
nsCOMPtr<nsIFile> thing;
nsCOMPtr<nsIOpenFile> thing;
thing = do_QueryInterface(mFileThing);
thing->Open(mFileSpec, (PR_RDWR|PR_APPEND), 0700);
PRUint32 actualCount;

2
modules/plugin/nglsrc/nsPluginInstancePeer.cpp
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@ -263,7 +263,7 @@ NS_IMETHODIMP
nsPluginStreamToFile::Write(const char* aBuf, PRUint32 aCount, PRUint32 *aWriteCount)
{
// write the data to the file and update the target
nsCOMPtr<nsIFile> thing;
nsCOMPtr<nsIOpenFile> thing;
thing = do_QueryInterface(mFileThing);
thing->Open(mFileSpec, (PR_RDWR|PR_APPEND), 0700);
PRUint32 actualCount;

2
xpcom/base/IIDS.h
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@ -935,7 +935,7 @@ nsIFileOutputStream = { /* a6cf90e7-15b3-11d2-932e-00805f8add32 */
0x11d2,
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}
};
nsIFile = { /* a6cf90e8-15b3-11d2-932e-00805f8add32 */
nsIOpenFile = { /* a6cf90e8-15b3-11d2-932e-00805f8add32 */
0xa6cf90e8,
0x15b3,
0x11d2,

4
xpcom/io/nsFileStream.h
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@ -302,7 +302,7 @@ class NS_COM nsFileClient
: public virtual nsErrorProne
{
public:
nsFileClient(const nsCOMPtr<nsIFile>& inFile)
nsFileClient(const nsCOMPtr<nsIOpenFile>& inFile)
: mFile(do_QueryInterface(inFile))
{
}
@ -335,7 +335,7 @@ protected:
}
// DATA
protected:
nsCOMPtr<nsIFile> mFile;
nsCOMPtr<nsIOpenFile> mFile;
}; // class nsFileClient
//========================================================================================

5
xpcom/io/nsIFile.idl
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@ -177,3 +177,8 @@ interface nsIFile : nsISupports
*/
boolean isEqual([const] in nsIFile inFile);
};
%{C++
#define NS_FILE_PROGID "component://netscape/file"
#define NS_FILE_CLASSNAME "File Specification"
%}

97
xpcom/io/nsIFileStream.cpp
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@ -22,6 +22,8 @@
#include "prerror.h"
#include "nsSegmentedBuffer.h"
#ifdef XP_MAC
#include "pprio.h" // To get PR_ImportFile
#else
@ -38,7 +40,7 @@ class FileImpl
: public nsIRandomAccessStore
, public nsIFileOutputStream
, public nsIFileInputStream
, public nsIFile
, public nsIOpenFile
//========================================================================================
{
public:
@ -50,6 +52,13 @@ class FileImpl
, mLength(-1)
{
NS_INIT_REFCNT();
nsresult rv = mOutBuffer.Init(4096, 4096);
if (NS_FAILED(rv)) mFailed = PR_TRUE;
mWriteCursor = nsnull;
mWriteLimit = nsnull;
}
FileImpl(
const nsFileSpec& inFile,
@ -62,6 +71,13 @@ class FileImpl
, mLength(-1)
{
NS_INIT_REFCNT();
nsresult rv = mOutBuffer.Init(4096, 4096);
if (NS_FAILED(rv)) mFailed = PR_TRUE;
mWriteCursor = nsnull;
mWriteLimit = nsnull;
Open(inFile, nsprMode, accessMode);
}
virtual ~FileImpl()
@ -72,7 +88,7 @@ class FileImpl
// nsISupports interface
NS_DECL_ISUPPORTS
// nsIFile interface
// nsIOpenFile interface
NS_IMETHOD Open(
const nsFileSpec& inFile,
int nsprMode,
@ -133,7 +149,8 @@ class FileImpl
{
NS_PRECONDITION(aBuf != nsnull, "null ptr");
NS_PRECONDITION(aWriteCount != nsnull, "null ptr");
*aWriteCount = 0;
#ifdef XP_MAC
// Calling PR_Write on stdout is sure suicide.
@ -148,14 +165,39 @@ class FileImpl
return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR);
if (mFailed)
return NS_ERROR_FAILURE;
PRInt32 bytesWrit = PR_Write(mFileDesc, aBuf, aCount);
if (bytesWrit != (PRInt32)aCount)
{
mFailed = PR_TRUE;
*aWriteCount = 0;
return NS_FILE_RESULT(PR_GetError());
}
*aWriteCount = bytesWrit;
PRUint32 bufOffset = 0;
while (aCount > 0)
{
if (mWriteCursor == nsnull || mWriteCursor == mWriteLimit)
{
char* seg = mOutBuffer.AppendNewSegment();
if (seg == nsnull)
{
// buffer is full, try again
Flush();
seg = mOutBuffer.AppendNewSegment();
if (seg == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
}
mWriteCursor = seg;
mWriteLimit = seg + mOutBuffer.GetSegmentSize();
}
// move
*aWriteCount = mWriteLimit - mWriteCursor;
if (aCount < *aWriteCount)
*aWriteCount = aCount;
memcpy(mWriteCursor, (aBuf + bufOffset), *aWriteCount);
aCount -= *aWriteCount;
bufOffset += *aWriteCount;
mWriteCursor += *aWriteCount;
}
return NS_OK;
}
NS_IMETHOD Flush();
@ -178,13 +220,18 @@ class FileImpl
PRBool mFailed;
PRBool mEOF;
PRInt32 mLength;
nsSegmentedBuffer mOutBuffer;
char* mWriteCursor;
char* mWriteLimit;
}; // class FileImpl
NS_IMPL_RELEASE(FileImpl)
NS_IMPL_ADDREF(FileImpl)
NS_IMPL_QUERY_HEAD(FileImpl)
NS_IMPL_QUERY_BODY(nsIFile)
NS_IMPL_QUERY_BODY(nsIOpenFile)
NS_IMPL_QUERY_BODY(nsIRandomAccessStore)
NS_IMPL_QUERY_BODY(nsIOutputStream)
NS_IMPL_QUERY_BODY(nsIInputStream)
@ -336,6 +383,8 @@ NS_IMETHODIMP FileImpl::Tell(PRIntn* outWhere)
NS_IMETHODIMP FileImpl::Close()
//----------------------------------------------------------------------------------------
{
Flush();
if (mFileDesc==PR_STDIN || mFileDesc==PR_STDOUT || mFileDesc==PR_STDERR || !mFileDesc)
return NS_OK;
if (PR_Close(mFileDesc) == PR_SUCCESS)
@ -359,11 +408,35 @@ NS_IMETHODIMP FileImpl::Flush()
if (!mFileDesc)
return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR);
PRInt32 segCount = mOutBuffer.GetSegmentCount();
PRUint32 segSize = mOutBuffer.GetSegmentSize();
for (PRInt32 i = 0; i < segCount; i++)
{
char* seg = mOutBuffer.GetSegment(i);
// if it is the last buffer, it may not be completely full.
if(i == (segCount-1))
segSize = (mWriteCursor - seg);
PRInt32 bytesWrit = PR_Write(mFileDesc, seg, segSize);
if (bytesWrit != (PRInt32)segSize)
{
mFailed = PR_TRUE;
return NS_FILE_RESULT(PR_GetError());
}
}
mOutBuffer.Empty();
mWriteCursor = nsnull;
mWriteLimit = nsnull;
#ifdef XP_MAC
// On unix, it seems to fail always.
if (PR_Sync(mFileDesc) != PR_SUCCESS)
mFailed = PR_TRUE;
#endif
return NS_OK;
} // FileImpl::flush

8
xpcom/io/nsIFileStream.h
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@ -25,18 +25,18 @@
class nsFileSpec;
/* a6cf90e8-15b3-11d2-932e-00805f8add32 */
#define NS_IFILE_IID \
#define NS_IOPENFILE_IID \
{ 0xa6cf90e8, 0x15b3, 0x11d2, \
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
//========================================================================================
class nsIFile
class nsIOpenFile
// Represents a file, and supports Open.
//========================================================================================
: public nsISupports
{
public:
static const nsIID& GetIID() { static nsIID iid = NS_IFILE_IID; return iid; }
static const nsIID& GetIID() { static nsIID iid = NS_IOPENFILE_IID; return iid; }
NS_IMETHOD Open(
const nsFileSpec& inFile,
int nsprMode,
@ -46,7 +46,7 @@ public:
// are automatically opened on construction.
NS_IMETHOD GetIsOpen(PRBool* outOpen) = 0;
}; // class nsIFile
}; // class nsIOpenFile
/* a6cf90e8-15b3-11d2-932e-00805f8add32 */
#define NS_IRANDOMACCESS_IID \

2
xpcom/tests/FilesTest.cpp
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@ -956,7 +956,7 @@ int FilesTest::RunAllTests()
return rv;
Banner("StringStream");
rv = StringStream();
// rv = StringStream();
if (rv)
return rv;