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pjs/network/module/nsNetFile.cpp

928 строки
26 KiB
C++
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#include "nsNetFile.h"
#include "prmem.h"
#include "nsString.h"
#include "plstr.h"
#include "prerror.h"
#include "direct.h"
#include <time.h>
char USER_DIR[_MAX_PATH];
char CACHE_DIR[_MAX_PATH];
char DEF_DIR[_MAX_PATH];
static NS_DEFINE_IID(kINetFileIID, NS_INETFILE_IID);
NS_IMPL_ISUPPORTS(nsNetFile, kINetFileIID);
typedef struct _nsFileAssoc {
nsString name;
nsString dirTok;
} nsFileAssoc;
// Comparison routine for the fileAssoc objects.
PR_IMPLEMENT(int)
PL_CompareFileAssoc(const void *v1, const void *v2)
{
nsFileAssoc *a = (nsFileAssoc*)v1;
nsFileAssoc *b = (nsFileAssoc*)v2;
return *a->name == *b->name;
}
nsNetFile::nsNetFile() {
NS_INIT_REFCNT();
#ifdef XP_PC
mDirDel = '\\';
#elif XP_MAC
mDirDel = ':';
#else
mDirDel = '/';
#endif
mTokDel = '%';
mHTDirs = PL_NewHashTable(5, PL_HashString, PL_CompareStrings,
PL_CompareStrings, nsnull, nsnull);
mHTFiles = PL_NewHashTable(10, PL_HashString, PL_CompareStrings,
PL_CompareFileAssoc, nsnull, nsnull);
}
PR_CALLBACK PRIntn
NS_RemoveStringEntries(PLHashEntry* he, PRIntn i, void* arg)
{
char *entry = (char*)he->value;
NS_ASSERTION(entry != nsnull, "null entry");
PR_Free(entry);
return HT_ENUMERATE_REMOVE;
}
nsNetFile::~nsNetFile() {
// Clear the hash table.
PL_HashTableEnumerateEntries(mHTDirs, NS_RemoveStringEntries, 0);
PL_HashTableDestroy(mHTDirs);
PL_HashTableEnumerateEntries(mHTFiles, NS_RemoveStringEntries, 0);
PL_HashTableDestroy(mHTFiles);
}
nsresult nsNetFile::GetFilePath(const char *aName, char **aRes) {
nsString newPath, fileName;
char *tmpString;
char *path = nsnull, *locName = nsnull;
char *tokBegin, *dirTok, *fileTok, *nextTok;
nsFileAssoc *faFile = nsnull;
NS_PRECONDITION( (aName != nsnull), "Null pointer.");
locName = URLSyntaxToLocal(aName);
if (!locName)
return NS_ERROR_OUT_OF_MEMORY;
// If we were handed an absolute path, spit it back.
if ( (*locName == mDirDel) // mac and unix
||
(*locName && (*(locName + 1) == ':') ) ) // pc
{
newPath = locName;
PR_Free(locName);
locName = nsnull;
tmpString = newPath.ToNewCString();
if (!tmpString)
return NS_ERROR_OUT_OF_MEMORY;
path = PL_strdup(tmpString);
delete[] tmpString;
tmpString = nsnull;
*aRes = path;
return NS_OK;
}
// First see if this has been explicitly registered
faFile = (nsFileAssoc*)PL_HashTableLookup(mHTFiles, locName);
if (faFile) {
char *dir = nsnull;
if (faFile->dirTok.Length()) {
char *csDT;
tmpString = faFile->dirTok.ToNewCString();
if (!tmpString) {
return NS_ERROR_OUT_OF_MEMORY;
}
csDT = PL_strdup(tmpString);
delete[] tmpString;
tmpString = nsnull;
dir = (char*)PL_HashTableLookup(mHTDirs, csDT);
PR_Free(csDT);
}
// If it wasn't in the table give the file a default dir.
if (!dir) {
dir = (char*)PL_HashTableLookup(mHTDirs, DEF_DIR_TOK);
NS_PRECONDITION( (dir != nsnull), "No default dir registered.");
return NS_ERROR_FAILURE;
}
newPath = dir;
if (dir[PL_strlen(path)-1] != mDirDel) {
newPath.Append(mDirDel);
}
newPath.Append(faFile->name);
tmpString = newPath.ToNewCString();
*aRes = PL_strdup(tmpString);
delete[] tmpString;
return NS_OK;
}
// If we've gotten this far, this file wasn't registered, or the user wants
// to use a different directory with the file.
// Lookup the token(s) in our hash table(s).
dirTok = nsnull;
fileTok = nsnull;
tokBegin = PL_strchr(locName, mTokDel);
if (tokBegin) {
nextTok = PL_strchr(tokBegin+1, mTokDel);
if (nextTok) {
// Check for more (could be another token or a filename).
if (*(nextTok+1)) {
// Set the first one as the dir.
char tmp = *(nextTok+1);
*(nextTok+1) = '\0';
dirTok = PL_strdup(tokBegin);
*(nextTok+1) = tmp;
tokBegin = nextTok+1;
nextTok = PL_strchr(tokBegin+1, mTokDel);
}
if (nextTok) {
*(nextTok+1) = '\0';
fileTok = PL_strdup(tokBegin);
*(nextTok+1) = mTokDel;
} else {
// no file token
fileTok = PL_strdup(tokBegin);
}
}
}
// If the user passed in a dir token, use it.
if (dirTok) {
char *path = (char*)PL_HashTableLookup(mHTDirs, dirTok);
PR_Free(dirTok);
// If it wasn't in the table, fail.
if (!path) {
PR_Free(fileTok);
return NS_ERROR_FAILURE;
}
newPath = path;
if (path[PL_strlen(path)-1] != mDirDel) {
newPath.Append(mDirDel);
}
}
if (fileTok) {
faFile = (nsFileAssoc*)PL_HashTableLookup(mHTFiles, fileTok);
if (faFile)
fileName = faFile->name;
else
fileName = fileTok; // It wasn't a token after all;
} else {
fileName = (char *)aName;
}
newPath.Append(fileName);
PR_Free(fileTok);
tmpString = newPath.ToNewCString();
*aRes = PL_strdup(tmpString);
delete[] tmpString;
PR_FREEIF(locName);
return NS_OK;
}
nsresult nsNetFile::GetTemporaryFilePath(const char *aName, char **aRes) {
return NS_OK;
}
nsresult nsNetFile::GetUniqueFilePath(const char *aName, char **aRes) {
return NS_OK;
}
void nsNetFile::GenerateGlobalRandomBytes(void *aDest, size_t aLen) {
/* This is a temporary implementation to avoid */
/* the cache filename horkage. This needs to have a more */
/* secure/free implementation here - Gagan */
char* output=(char*)aDest;
size_t i;
srand((unsigned int) PR_IntervalToMilliseconds(PR_IntervalNow()));
for (i=0;i<aLen; i++)
{
int t = rand();
*output = (char) (t % 256);
output++;
}
}
#define MAX_PATH_LEN 512
nsresult nsNetFile::GetCacheFileName(char *aDirTok, char **aRes) {
char *file_buf = nsnull;
char *ext = ".MOZ";
char *prefix = "M";
PRStatus status;
PRFileInfo statinfo;
char *dir = (char*)PL_HashTableLookup(mHTDirs, aDirTok);
file_buf = (char*)PR_Calloc(1, MAX_PATH_LEN);
if (!dir)
return NS_ERROR_FAILURE;
// We need to base our temporary file names on time, and not on sequential
// addition because of the cache not being updated when the user
// crashes and files that have been deleted are over written with
// other files; bad data.
// The 52 valid DOS file name characters are
// 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_^$~!#%&-{}@`'()
// We will only be using the first 32 of the choices.
//
// Time name format will be M+++++++.MOZ
// Where M is the single letter prefix (can be longer....)
// Where +++++++ is the 7 character time representation (a full 8.3
// file name will be made).
// Where .MOZ is the file extension to be used.
//
// In the event that the time requested is the same time as the last call
// to this function, then the current time is incremented by one,
// as is the last time called to facilitate unique file names.
// In the event that the invented file name already exists (can't
// really happen statistically unless the clock is messed up or we
// manually incremented the time), then the times are incremented
// until an open name can be found.
//
// time_t (the time) has 32 bits, or 4,294,967,296 combinations.
// We will map the 32 bits into the 7 possible characters as follows:
// Starting with the lsb, sets of 5 bits (32 values) will be mapped
// over to the appropriate file name character, and then
// incremented to an approprate file name character.
// The left over 2 bits will be mapped into the seventh file name
// character.
//
int i_letter, i_timechars, i_numtries = 0;
char ca_time[8];
time_t this_call = (time_t)0;
// We have to base the length of our time string on the length
// of the incoming prefix....
//
i_timechars = 8 - PL_strlen(prefix);
// Infinite loop until the conditions are satisfied.
// There is no danger, unless every possible file name is used.
//
while(1) {
// We used to use the time to generate this.
// Now, we use some crypto to avoid bug #47027
GenerateGlobalRandomBytes((void *)&this_call, sizeof(this_call));
// Convert the time into a 7 character string.
// Strip only the signifigant 5 bits.
// We'll want to reverse the string to make it look coherent
// in a directory of file names.
//
for(i_letter = 0; i_letter < i_timechars; i_letter++) {
ca_time[i_letter] = (char)((this_call >> (i_letter * 5)) & 0x1F);
// Convert any numbers to their equivalent ascii code
//
if(ca_time[i_letter] <= 9) {
ca_time[i_letter] += '0';
// Convert the character to it's equivalent ascii code
//
} else {
ca_time[i_letter] += 'A' - 10;
}
}
// End the created time string.
//
ca_time[i_letter] = '\0';
// Reverse the time string.
//
_strrev(ca_time);
// Create the fully qualified path and file name.
//
sprintf(file_buf, "%s\\%s%s%s", dir, prefix, ca_time, ext);
// Determine if the file exists, and mark that we've tried yet
// another file name (mark to be used later).
//
// Use the system call instead of XP_Stat since we already
// know the name and we don't want recursion
//
status = PR_GetFileInfo(file_buf, &statinfo);
i_numtries++;
// If it does not exists, we are successful, return the name.
//
if(status == PR_FAILURE) {
/* don't generate a directory as part of the
* cache temp names. When the cache file name
* is passed into the other XP_File functions
* we will append the cache directory to the name
* to get the complete path.
* This will allow the cache to be moved around
* and for netscape to be used to generate external
* cache FAT's. :lou
*/
sprintf(file_buf, "%s%s%s", prefix, ca_time, ext);
*aRes = file_buf;
break;
}
} // End while
return NS_OK;
}
#if 0
// Here for reference.
PUBLIC char *
xp_TempFileName(int type, const char * request_prefix, const char * extension,
char* file_buf)
{
const char * directory = NULL;
char * ext = NULL; // file extension if any
char * prefix = NULL; // file prefix if any
XP_Bool bDirSlash = FALSE;
XP_StatStruct statinfo;
int status;
//
// based on the type of request determine what directory we should be
// looking into
//
switch(type) {
case xpCache:
directory = theApp.m_pCacheDir;
ext = ".MOZ";
prefix = CACHE_PREFIX;
break;
#ifdef MOZ_MAIL_NEWS
case xpSNewsRC:
case xpNewsRC:
case xpNewsgroups:
case xpSNewsgroups:
case xpTemporaryNewsRC:
directory = g_MsgPrefs.m_csNewsDir;
ext = (char *)extension;
prefix = (char *)request_prefix;
break;
case xpMailFolderSummary:
case xpMailFolder:
directory = g_MsgPrefs.m_csMailDir;
ext = (char *)extension;
prefix = (char *)request_prefix;
break;
case xpAddrBook:
//changed jonm-- to support multi-profile
//directory = theApp.m_pInstallDir->GetCharValue();
directory = (const char *)theApp.m_UserDirectory;
if ((request_prefix == 0) || (XP_STRLEN (request_prefix) == 0))
prefix = "abook";
ext = ".nab";
break;
#endif // MOZ_MAIL_NEWS
case xpCacheFAT:
directory = theApp.m_pCacheDir;
prefix = "fat";
ext = "db";
break;
case xpJPEGFile:
directory = theApp.m_pTempDir;
ext = ".jpg";
prefix = (char *)request_prefix;
break;
case xpPKCS12File:
directory = theApp.m_pTempDir;
ext = ".p12";
prefix = (char *)request_prefix;
break;
case xpURL:
{
if (request_prefix)
{
if ( XP_STRRCHR(request_prefix, '/') )
{
const char *end;
XP_StatStruct st;
directory = (char *)request_prefix;
end = directory + XP_STRLEN(directory) - 1;
if ( *end == '/' || *end == '\\' ) {
bDirSlash = TRUE;
}
if (XP_Stat (directory, &st, xpURL))
XP_MakeDirectoryR (directory, xpURL);
ext = (char *)extension;
prefix = (char *)"su";
break;
}
}
// otherwise, fall through
}
case xpTemporary:
default:
directory = theApp.m_pTempDir;
ext = (char *)extension;
prefix = (char *)request_prefix;
break;
}
if(!directory)
return(NULL);
if(!prefix)
prefix = "X";
if(!ext)
ext = ".TMP";
// We need to base our temporary file names on time, and not on sequential
// addition because of the cache not being updated when the user
// crashes and files that have been deleted are over written with
// other files; bad data.
// The 52 valid DOS file name characters are
// 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_^$~!#%&-{}@`'()
// We will only be using the first 32 of the choices.
//
// Time name format will be M+++++++.MOZ
// Where M is the single letter prefix (can be longer....)
// Where +++++++ is the 7 character time representation (a full 8.3
// file name will be made).
// Where .MOZ is the file extension to be used.
//
// In the event that the time requested is the same time as the last call
// to this function, then the current time is incremented by one,
// as is the last time called to facilitate unique file names.
// In the event that the invented file name already exists (can't
// really happen statistically unless the clock is messed up or we
// manually incremented the time), then the times are incremented
// until an open name can be found.
//
// time_t (the time) has 32 bits, or 4,294,967,296 combinations.
// We will map the 32 bits into the 7 possible characters as follows:
// Starting with the lsb, sets of 5 bits (32 values) will be mapped
// over to the appropriate file name character, and then
// incremented to an approprate file name character.
// The left over 2 bits will be mapped into the seventh file name
// character.
//
int i_letter, i_timechars, i_numtries = 0;
char ca_time[8];
time_t this_call = (time_t)0;
// We have to base the length of our time string on the length
// of the incoming prefix....
//
i_timechars = 8 - strlen(prefix);
// Infinite loop until the conditions are satisfied.
// There is no danger, unless every possible file name is used.
//
while(1) {
// We used to use the time to generate this.
// Now, we use some crypto to avoid bug #47027
RNG_GenerateGlobalRandomBytes((void *)&this_call, sizeof(this_call));
// Convert the time into a 7 character string.
// Strip only the signifigant 5 bits.
// We'll want to reverse the string to make it look coherent
// in a directory of file names.
//
for(i_letter = 0; i_letter < i_timechars; i_letter++) {
ca_time[i_letter] = (char)((this_call >> (i_letter * 5)) & 0x1F);
// Convert any numbers to their equivalent ascii code
//
if(ca_time[i_letter] <= 9) {
ca_time[i_letter] += '0';
}
// Convert the character to it's equivalent ascii code
//
else {
ca_time[i_letter] += 'A' - 10;
}
}
// End the created time string.
//
ca_time[i_letter] = '\0';
// Reverse the time string.
//
_strrev(ca_time);
// Create the fully qualified path and file name.
//
if (bDirSlash)
sprintf(file_buf, "%s%s%s%s", directory, prefix, ca_time, ext);
else
sprintf(file_buf, "%s\\%s%s%s", directory, prefix, ca_time, ext);
// Determine if the file exists, and mark that we've tried yet
// another file name (mark to be used later).
//
// Use the system call instead of XP_Stat since we already
// know the name and we don't want recursion
//
status = _stat(file_buf, &statinfo);
i_numtries++;
// If it does not exists, we are successful, return the name.
//
if(status == -1) {
/* don't generate a directory as part of the
* cache temp names. When the cache file name
* is passed into the other XP_File functions
* we will append the cache directory to the name
* to get the complete path.
* This will allow the cache to be moved around
* and for netscape to be used to generate external
* cache FAT's. :lou
*/
if(type == xpCache )
sprintf(file_buf, "%s%s%s", prefix, ca_time, ext);
// TRACE("Temp file name is %s\n", file_buf);
return(file_buf);
}
// If there is no room for additional characters in the time,
// we'll have to return NULL here, or we go infinite.
// This is a one case scenario where the requested prefix is
// actually 8 letters long.
// Infinite loops could occur with a 7, 6, 5, etc character prefixes
// if available files are all eaten up (rare to impossible), in
// which case, we should check at some arbitrary frequency of
// tries before we give up instead of attempting to Vulcanize
// this code. Live long and prosper.
//
if(i_timechars == 0) {
break;
}
else if(i_numtries == 0x00FF) {
break;
}
}
// Requested name is thought to be impossible to generate.
//
TRACE("No more temp file names....\n");
return(NULL);
}
#endif // 0
nsresult nsNetFile::OpenFile(const char *aPath, nsFileMode aMode, nsFile** aRes) {
nsFile *file = nsnull;
char *path = nsnull;
NS_PRECONDITION( (aPath != nsnull), "Null pointer.");
if (!aPath)
return NS_ERROR_NULL_POINTER;
if (!*aPath)
return NS_ERROR_FAILURE;
file = (nsFile*) PR_Malloc(sizeof(nsFile));
if (!file)
return NS_ERROR_OUT_OF_MEMORY;
// Get the correct path.
if (GetFilePath(aPath, &path) == NS_ERROR_OUT_OF_MEMORY)
return NS_ERROR_OUT_OF_MEMORY;
// We should never be opening a relative file.
NS_PRECONDITION( ( (*path != mDirDel) && (*path && (*path+1 != ':'))), "Opening a relative path.");
file->fd = PR_Open(path, (convertToPRFlag(aMode)), 0600);
PR_Free(path);
path = nsnull;
if (!file->fd) {
PR_Free(file);
return NS_ERROR_NULL_POINTER;
}
*aRes = file;
return NS_OK;
}
nsresult nsNetFile::CloseFile(nsFile* aFile) {
PRStatus rv;
NS_PRECONDITION( (aFile != nsnull), "Null pointer.");
if (!aFile->fd)
return NS_ERROR_NULL_POINTER;
rv = PR_Close(aFile->fd);
if (rv == PR_FAILURE)
return NS_ERROR_FAILURE;
PR_Free(aFile);
aFile = nsnull;
return NS_OK;
}
nsresult nsNetFile::FileRead(nsFile *aFile, char **aBuf,
PRInt32 *aBuflen,
PRInt32 *aBytesRead) {
NS_PRECONDITION( (aFile != nsnull), "Null pointer.");
if (*aBuflen < 1)
return NS_OK;
*aBytesRead = PR_Read(aFile->fd, *aBuf, *aBuflen);
if (*aBytesRead == -1) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult nsNetFile::FileReadLine(nsFile *aFile, char **aBuf,
PRInt32 *aBuflen,
PRInt32 *aBytesRead) {
PRInt32 readBytes;
PRInt32 idx = 0;
char *tmpBuf = nsnull;
NS_PRECONDITION( (aFile != nsnull), "Null pointer.");
if (*aBuflen < 1) {
*aBytesRead = 0;
return NS_OK;
}
readBytes = PR_Read(aFile->fd, *aBuf, *aBuflen);
tmpBuf = *aBuf;
if (readBytes > 0) {
while (idx < readBytes) {
if (tmpBuf[idx] == 10) { // LF
if (tmpBuf[idx+1])
tmpBuf[idx+1] = '\0';
// Back the file pointer up.
PR_Seek(aFile->fd, ((idx+1) - readBytes), PR_SEEK_CUR);
*aBytesRead = idx+1;
return NS_OK;
}
idx++;
}
}
if (readBytes == *aBuflen)
return NS_ERROR_FAILURE;
return NS_ERROR_FAILURE;
}
nsresult nsNetFile::FileWrite(nsFile *aFile, const char *aBuf,
PRInt32 *aLen,
PRInt32 *aBytesWritten) {
PRErrorCode error; // for testing, not propogated.
NS_PRECONDITION( (aFile != nsnull), "Null pointer.");
if (*aLen < 1)
return NS_OK;
*aBytesWritten = PR_Write(aFile->fd, aBuf, *aLen);
if (*aBytesWritten == -1) {
error = PR_GetError();
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult nsNetFile::FileSync(nsFile *aFile) {
NS_PRECONDITION( (aFile != nsnull), "Null pointer.");
if (PR_Sync(aFile->fd) == PR_FAILURE)
return NS_ERROR_FAILURE;
return NS_OK;
}
nsresult nsNetFile::FileRemove(const char *aPath) {
char *path = nsnull;
NS_PRECONDITION( (aPath != nsnull), "Null pointer.");
// Only remove absolute paths.
if (GetFilePath(aPath, &path) == NS_ERROR_OUT_OF_MEMORY)
return NS_ERROR_OUT_OF_MEMORY;
// We should never be deleting a relative file.
NS_PRECONDITION( ( (*path != mDirDel) && (*path && (*path+1 != ':'))), "Deleting a relative path.");
PR_Free(path);
return NS_OK;
}
nsresult nsNetFile::FileRename(const char *aPathOld, const char *aPathNew) {
return NS_OK;
}
nsresult nsNetFile::OpenDir(const char *aPath, nsDir** aRes) {
return NS_OK;
}
nsresult nsNetFile::CloseDir(nsDir *aDir) {
return NS_OK;
}
nsresult nsNetFile::CreateDir(const char *aPath, PRBool aRecurse) {
return NS_OK;
}
nsresult nsNetFile::SetDirectory(const char *aToken, const char *aDir) {
nsresult rv = NS_OK;
if (!PL_HashTableAdd(mHTDirs, PL_strdup(aToken), PL_strdup(aDir))) {
rv = NS_ERROR_FAILURE;
}
return rv;
}
// Associate a filename with a token, and optionally a dir token.
nsresult nsNetFile::SetFileAssoc(const char *aToken,
const char *aFile,
const char *aDirToken) {
nsString val(aFile);
nsFileAssoc *theFile = new nsFileAssoc;
if (aDirToken) {
// Check for existence.
char *dir = (char*)PL_HashTableLookup(mHTDirs, aDirToken);
if (!dir)
return NS_ERROR_FAILURE;
theFile->dirTok = aDirToken;
}
theFile->name = aFile;
if (!PL_HashTableAdd(mHTFiles, aToken, theFile)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
PRIntn nsNetFile::convertToPRFlag(nsFileMode aMode) {
switch (aMode) {
case nsRead:
return PR_RDONLY;
case nsWrite:
return PR_WRONLY;
case nsReadWrite:
return PR_RDWR;
case nsReadBinary:
return PR_RDONLY;
case nsWriteBinary:
return PR_WRONLY;
case nsReadWriteBinary:
return PR_RDWR;
case nsOverWrite:
return (PR_TRUNCATE | PR_WRONLY);
default:
return PR_RDONLY;
}
}
char *nsNetFile::URLSyntaxToLocal(const char *aPath)
#ifdef XP_PC
{
char *p, *newName;
if(!aPath)
return nsnull;
// If the name is only '/' or begins '//' keep the
// whole name else strip the leading '/'
PRBool bChopSlash = PR_FALSE;
if(aPath[0] == '/')
bChopSlash = PR_TRUE;
// save just / as a path
if(aPath[0] == '/' && aPath[1] == '\0')
bChopSlash = PR_FALSE;
// spanky Win9X path name
if(aPath[0] == '/' && aPath[1] == '/')
bChopSlash = PR_FALSE;
if(bChopSlash)
newName = PL_strdup(&(aPath[1]));
else
newName = PL_strdup(aPath);
if(!newName)
return nsnull;
if( newName[1] == '|' )
newName[1] = ':';
for(p = newName; *p; p++){
if( *p == '/' )
*p = '\\';
}
return(newName);
}
#elif XP_MAC
{
return nsnull;
}
#else // UNIX
{
return nsnull;
}
#endif
extern "C" {
/*
* Factory for creating instance of the NetFile...
*/
NS_NET nsresult NS_NewINetFile(nsINetFile** aInstancePtrResult,
nsISupports* aOuter)
{
if (nsnull != aOuter) {
return NS_ERROR_NO_AGGREGATION;
}
#ifdef XP_MAC
// Perform static initialization...
if (nsnull == netFileInit) {
netFileInit = new nsNetFileInit;
}
#endif /* XP_MAC */ // XXX on the mac this never gets shutdown
// The Netlib Service is created by the nsNetFileInit class...
if (nsnull == gNetFile) {
return NS_ERROR_OUT_OF_MEMORY;
}
return gNetFile->QueryInterface(kINetFileIID, (void**)aInstancePtrResult);
}
NS_NET nsresult NS_InitINetFile(void)
{
/* XXX: For now only allow a single instance of the Netlib Service */
if (nsnull == gNetFile) {
gNetFile = new nsNetFile();
if (nsnull == gNetFile) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
NS_ADDREF(gNetFile);
return NS_OK;
}
NS_NET nsresult NS_ShutdownINetFile()
{
nsNetFile *service = gNetFile;
// Release the container...
if (nsnull != service) {
NS_RELEASE(service);
}
return NS_OK;
}
}; /* extern "C" */
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