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-rw-r--r--src/libs/xpcom18a4/nsprpub/lib/prstreams/prstrms.cpp550
1 files changed, 550 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/nsprpub/lib/prstreams/prstrms.cpp b/src/libs/xpcom18a4/nsprpub/lib/prstreams/prstrms.cpp
new file mode 100644
index 00000000..17b280ea
--- /dev/null
+++ b/src/libs/xpcom18a4/nsprpub/lib/prstreams/prstrms.cpp
@@ -0,0 +1,550 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * Robin J. Maxwell 11-22-96
+ */
+
+#include "prstrms.h"
+#include <string.h> // memmove
+
+//
+// Definition of macros _PRSTR_BP, _PRSTR_DELBUF, and _PRSTR_DELBUF_C.
+//
+// _PRSTR_BP is the protected member of class ios that is returned
+// by the public method rdbuf().
+//
+// _PRSTR_DELBUF is the method or data member of class ios, if available,
+// with which we can ensure that the ios destructor does not delete
+// the associated streambuf. If such a method or data member does not
+// exist, define _PRSTR_DELBUF to be empty.
+//
+// _PRSTR_DELBUF_C is just _PRSTR_DELBUF qualified by a base class.
+//
+
+#if defined(__GNUC__)
+#define _PRSTR_BP _strbuf
+#define _PRSTR_DELBUF(x) /* as nothing */
+#define _PRSTR_DELBUF_C(c, x) /* as nothing */
+#elif defined(WIN32)
+#define _PRSTR_BP bp
+#define _PRSTR_DELBUF(x) delbuf(x)
+#define _PRSTR_DELBUF_C(c, x) c::_PRSTR_DELBUF(x)
+#elif defined(VMS)
+#undef _PRSTR_BP
+#define _PRSTR_DELBUF(x) /* as nothing */
+#define _PRSTR_DELBUF_C(c, x) /* as nothing */
+#elif defined(OSF1)
+#define _PRSTR_BP m_psb
+#define _PRSTR_DELBUF(x) /* as nothing */
+#define _PRSTR_DELBUF_C(c, x) /* as nothing */
+#elif defined(QNX)
+#define PRFSTREAMS_BROKEN
+#else
+#define _PRSTR_BP bp
+// Unix compilers don't believe in encapsulation
+// At least on Solaris this is also ignored
+#define _PRSTR_DELBUF(x) delbuf = x
+#define _PRSTR_DELBUF_C(c, x) c::_PRSTR_DELBUF(x)
+#endif
+
+const PRIntn STRM_BUFSIZ = 8192;
+
+#if !defined (PRFSTREAMS_BROKEN)
+
+PRfilebuf::PRfilebuf():
+_fd(0),
+_opened(PR_FALSE),
+_allocated(PR_FALSE)
+{
+}
+
+PRfilebuf::PRfilebuf(PRFileDesc *fd):
+streambuf(),
+_fd(fd),
+_opened(PR_FALSE),
+_allocated(PR_FALSE)
+{
+}
+
+PRfilebuf::PRfilebuf(PRFileDesc *fd, char * buffptr, int bufflen):
+_fd(fd),
+_opened(PR_FALSE),
+_allocated(PR_FALSE)
+{
+ PRfilebuf::setbuf(buffptr, bufflen);
+}
+
+PRfilebuf::~PRfilebuf()
+{
+ if (_opened){
+ close();
+ }else
+ sync();
+ if (_allocated)
+ delete base();
+}
+
+PRfilebuf*
+PRfilebuf::open(const char *name, int mode, int flags)
+{
+ if (_fd != 0)
+ return 0; // error if already open
+ PRIntn PRmode = 0;
+ // translate mode argument
+ if (!(mode & ios::nocreate))
+ PRmode |= PR_CREATE_FILE;
+ //if (mode & ios::noreplace)
+ // PRmode |= O_EXCL;
+ if (mode & ios::app){
+ mode |= ios::out;
+ PRmode |= PR_APPEND;
+ }
+ if (mode & ios::trunc){
+ mode |= ios::out; // IMPLIED
+ PRmode |= PR_TRUNCATE;
+ }
+ if (mode & ios::out){
+ if (mode & ios::in)
+ PRmode |= PR_RDWR;
+ else
+ PRmode |= PR_WRONLY;
+ if (!(mode & (ios::in|ios::app|ios::ate|ios::noreplace))){
+ mode |= ios::trunc; // IMPLIED
+ PRmode |= PR_TRUNCATE;
+ }
+ }else if (mode & ios::in)
+ PRmode |= PR_RDONLY;
+ else
+ return 0; // error if not ios:in or ios::out
+
+
+ //
+ // The usual portable across unix crap...
+ // NT gets a hokey piece of junk layer that prevents
+ // access to the API.
+#ifdef WIN32
+ _fd = PR_Open(name, PRmode, PRmode);
+#else
+ _fd = PR_Open(name, PRmode, flags);
+#endif
+ if (_fd == 0)
+ return 0;
+ _opened = PR_TRUE;
+ if ((!unbuffered()) && (!ebuf())){
+ char * sbuf = new char[STRM_BUFSIZ];
+ if (!sbuf)
+ unbuffered(1);
+ else{
+ _allocated = PR_TRUE;
+ streambuf::setb(sbuf,sbuf+STRM_BUFSIZ,0);
+ }
+ }
+ if (mode & ios::ate){
+ if (seekoff(0,ios::end,mode)==EOF){
+ close();
+ return 0;
+ }
+ }
+ return this;
+}
+
+PRfilebuf*
+PRfilebuf::attach(PRFileDesc *fd)
+{
+ _opened = PR_FALSE;
+ _fd = fd;
+ return this;
+}
+
+int
+PRfilebuf::overflow(int c)
+{
+ if (allocate()==EOF) // make sure there is a reserve area
+ return EOF;
+ if (PRfilebuf::sync()==EOF) // sync before new buffer created below
+ return EOF;
+
+ if (!unbuffered())
+ setp(base(),ebuf());
+
+ if (c!=EOF){
+ if ((!unbuffered()) && (pptr() < epptr())) // guard against recursion
+ sputc(c);
+ else{
+ if (PR_Write(_fd, &c, 1)!=1)
+ return(EOF);
+ }
+ }
+ return(1); // return something other than EOF if successful
+}
+
+int
+PRfilebuf::underflow()
+{
+ int count;
+ unsigned char tbuf;
+
+ if (in_avail())
+ return (int)(unsigned char) *gptr();
+
+ if (allocate()==EOF) // make sure there is a reserve area
+ return EOF;
+ if (PRfilebuf::sync()==EOF)
+ return EOF;
+
+ if (unbuffered())
+ {
+ if (PR_Read(_fd,(void *)&tbuf,1)<=0)
+ return EOF;
+ return (int)tbuf;
+ }
+
+ if ((count=PR_Read(_fd,(void *)base(),blen())) <= 0)
+ return EOF; // reached EOF
+ setg(base(),base(),base()+count);
+ return (int)(unsigned char) *gptr();
+}
+
+streambuf*
+PRfilebuf::setbuf(char *buffptr, PRstreambuflen bufflen)
+{
+ if (is_open() && (ebuf()))
+ return 0;
+ if ((!buffptr) || (bufflen <= 0))
+ unbuffered(1);
+ else
+ setb(buffptr, buffptr+bufflen, 0);
+ return this;
+}
+
+streampos
+PRfilebuf::seekoff(streamoff offset, ios::seek_dir dir, int /* mode */)
+{
+ if (PR_GetDescType(_fd) == PR_DESC_FILE){
+ PRSeekWhence fdir;
+ PRInt32 retpos;
+ switch (dir) {
+ case ios::beg :
+ fdir = PR_SEEK_SET;
+ break;
+ case ios::cur :
+ fdir = PR_SEEK_CUR;
+ break;
+ case ios::end :
+ fdir = PR_SEEK_END;
+ break;
+ default:
+ // error
+ return(EOF);
+ }
+
+ if (PRfilebuf::sync()==EOF)
+ return EOF;
+ if ((retpos=PR_Seek(_fd, offset, fdir))==-1L)
+ return (EOF);
+ return((streampos)retpos);
+ }else
+ return (EOF);
+}
+
+
+int
+PRfilebuf::sync()
+{
+ PRInt32 count;
+
+ if (_fd==0)
+ return(EOF);
+
+ if (!unbuffered()){
+ // Sync write area
+ if ((count=out_waiting())!=0){
+ PRInt32 nout;
+ if ((nout =PR_Write(_fd,
+ (void *) pbase(),
+ (unsigned int)count)) != count){
+ if (nout > 0) {
+ // should set _pptr -= nout
+ pbump(-(int)nout);
+ memmove(pbase(), pbase()+nout, (int)(count-nout));
+ }
+ return(EOF);
+ }
+ }
+ setp(0,0); // empty put area
+
+ if (PR_GetDescType(_fd) == PR_DESC_FILE){
+ // Sockets can't seek; don't need this
+ if ((count=in_avail()) > 0){
+ if (PR_Seek(_fd, -count, PR_SEEK_CUR)!=-1L)
+ {
+ return (EOF);
+ }
+ }
+ }
+ setg(0,0,0); // empty get area
+ }
+ return(0);
+}
+
+PRfilebuf *
+PRfilebuf::close()
+{
+ int retval;
+ if (_fd==0)
+ return 0;
+
+ retval = sync();
+
+ if ((PR_Close(_fd)==0) || (retval==EOF))
+ return 0;
+ _fd = 0;
+ return this;
+}
+
+PRifstream::PRifstream():
+istream(new PRfilebuf)
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRifstream::PRifstream(PRFileDesc *fd):
+istream(new PRfilebuf(fd))
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRifstream::PRifstream(PRFileDesc *fd, char *buff, int bufflen):
+istream(new PRfilebuf(fd, buff, bufflen))
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRifstream::PRifstream(const char * name, int mode, int flags):
+istream(new PRfilebuf)
+{
+ _PRSTR_DELBUF(0);
+ if (!rdbuf()->open(name, (mode|ios::in), flags))
+ clear(rdstate() | ios::failbit);
+}
+
+PRifstream::~PRifstream()
+{
+ sync();
+
+ delete rdbuf();
+#ifdef _PRSTR_BP
+ _PRSTR_BP = 0;
+#endif
+}
+
+streambuf *
+PRifstream::setbuf(char * ptr, int len)
+{
+ if ((is_open()) || (!(rdbuf()->setbuf(ptr, len)))){
+ clear(rdstate() | ios::failbit);
+ return 0;
+ }
+ return rdbuf();
+}
+
+void
+PRifstream::attach(PRFileDesc *fd)
+{
+ if (!(rdbuf()->attach(fd)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRifstream::open(const char * name, int mode, int flags)
+{
+ if (is_open() || !(rdbuf()->open(name, (mode|ios::in), flags)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRifstream::close()
+{
+ clear((rdbuf()->close()) ? 0 : (rdstate() | ios::failbit));
+}
+
+PRofstream::PRofstream():
+ostream(new PRfilebuf)
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRofstream::PRofstream(PRFileDesc *fd):
+ostream(new PRfilebuf(fd))
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRofstream::PRofstream(PRFileDesc *fd, char *buff, int bufflen):
+ostream(new PRfilebuf(fd, buff, bufflen))
+{
+ _PRSTR_DELBUF(0);
+}
+
+PRofstream::PRofstream(const char *name, int mode, int flags):
+ostream(new PRfilebuf)
+{
+ _PRSTR_DELBUF(0);
+ if (!rdbuf()->open(name, (mode|ios::out), flags))
+ clear(rdstate() | ios::failbit);
+}
+
+PRofstream::~PRofstream()
+{
+ flush();
+
+ delete rdbuf();
+#ifdef _PRSTR_BP
+ _PRSTR_BP = 0;
+#endif
+}
+
+streambuf *
+PRofstream::setbuf(char * ptr, int len)
+{
+ if ((is_open()) || (!(rdbuf()->setbuf(ptr, len)))){
+ clear(rdstate() | ios::failbit);
+ return 0;
+ }
+ return rdbuf();
+}
+
+void
+PRofstream::attach(PRFileDesc *fd)
+{
+ if (!(rdbuf()->attach(fd)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRofstream::open(const char * name, int mode, int flags)
+{
+ if (is_open() || !(rdbuf()->open(name, (mode|ios::out), flags)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRofstream::close()
+{
+ clear((rdbuf()->close()) ? 0 : (rdstate() | ios::failbit));
+}
+
+PRfstream::PRfstream():
+iostream(new PRfilebuf)
+{
+ _PRSTR_DELBUF_C(istream, 0);
+ _PRSTR_DELBUF_C(ostream, 0);
+}
+
+PRfstream::PRfstream(PRFileDesc *fd):
+iostream(new PRfilebuf(fd))
+{
+ _PRSTR_DELBUF_C(istream, 0);
+ _PRSTR_DELBUF_C(ostream, 0);
+}
+
+PRfstream::PRfstream(PRFileDesc *fd, char *buff, int bufflen):
+iostream(new PRfilebuf(fd, buff, bufflen))
+{
+ _PRSTR_DELBUF_C(istream, 0);
+ _PRSTR_DELBUF_C(ostream, 0);
+}
+
+PRfstream::PRfstream(const char *name, int mode, int flags):
+iostream(new PRfilebuf)
+{
+ _PRSTR_DELBUF_C(istream, 0);
+ _PRSTR_DELBUF_C(ostream, 0);
+ if (!rdbuf()->open(name, (mode|(ios::in|ios::out)), flags))
+ clear(rdstate() | ios::failbit);
+}
+
+PRfstream::~PRfstream()
+{
+ sync();
+ flush();
+
+ delete rdbuf();
+#ifdef _PRSTR_BP
+ istream::_PRSTR_BP = 0;
+ ostream::_PRSTR_BP = 0;
+#endif
+}
+
+streambuf *
+PRfstream::setbuf(char * ptr, int len)
+{
+ if ((is_open()) || (!(rdbuf()->setbuf(ptr, len)))){
+ clear(rdstate() | ios::failbit);
+ return 0;
+ }
+ return rdbuf();
+}
+
+void
+PRfstream::attach(PRFileDesc *fd)
+{
+ if (!(rdbuf()->attach(fd)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRfstream::open(const char * name, int mode, int flags)
+{
+ if (is_open() || !(rdbuf()->open(name, (mode|(ios::in|ios::out)), flags)))
+ clear(rdstate() | ios::failbit);
+}
+
+void
+PRfstream::close()
+{
+ clear((rdbuf()->close()) ? 0 : (rdstate() | ios::failbit));
+}
+
+#else
+
+// fix it sometime
+
+int fix_prfstreams () { return 0; }
+
+#endif
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