diff options
Diffstat (limited to 'libio/fileops.c')
| -rw-r--r-- | libio/fileops.c | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/libio/fileops.c b/libio/fileops.c index 19151cf188..886b3729c3 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1993, 1995, 1997-2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1995, 1997-2005, 2006, 2007 + Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Per Bothner <bothner@cygnus.com>. @@ -174,14 +175,8 @@ _IO_new_file_close_it (fp) close_status = _IO_SYSCLOSE (fp); /* Free buffer. */ - if (fp->_mode <= 0) - { - INTUSE(_IO_setb) (fp, NULL, NULL, 0); - _IO_setg (fp, NULL, NULL, NULL); - _IO_setp (fp, NULL, NULL); - } #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T - else + if (fp->_mode > 0) { if (_IO_have_wbackup (fp)) INTUSE(_IO_free_wbackup_area) (fp); @@ -190,6 +185,9 @@ _IO_new_file_close_it (fp) _IO_wsetp (fp, NULL, NULL); } #endif + INTUSE(_IO_setb) (fp, NULL, NULL, 0); + _IO_setg (fp, NULL, NULL, NULL); + _IO_setp (fp, NULL, NULL); INTUSE(_IO_un_link) ((struct _IO_FILE_plus *) fp); fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS; @@ -399,6 +397,9 @@ _IO_new_file_fopen (fp, filename, mode, is32not64) /* And now the transliteration. */ cc->__cd_out.__cd.__data[0].__trans = &__libio_translit; + /* From now on use the wide character callback functions. */ + ((struct _IO_FILE_plus *) fp)->vtable = fp->_wide_data->_wide_vtable; + /* Set the mode now. */ result->_mode = 1; } @@ -472,7 +473,7 @@ _IO_file_setbuf_mmap (fp, p, len) return result; } -static _IO_size_t new_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW; +static _IO_size_t new_do_write (_IO_FILE *, const char *, _IO_size_t); /* Write TO_DO bytes from DATA to FP. Then mark FP as having empty buffers. */ @@ -826,10 +827,10 @@ _IO_new_file_overflow (f, ch) return EOF; } /* If currently reading or no buffer allocated. */ - if ((f->_flags & _IO_CURRENTLY_PUTTING) == 0 || f->_IO_write_base == 0) + if ((f->_flags & _IO_CURRENTLY_PUTTING) == 0 || f->_IO_write_base == NULL) { /* Allocate a buffer if needed. */ - if (f->_IO_write_base == 0) + if (f->_IO_write_base == NULL) { INTUSE(_IO_doallocbuf) (f); _IO_setg (f, f->_IO_buf_base, f->_IO_buf_base, f->_IO_buf_base); @@ -1281,7 +1282,7 @@ _IO_new_file_xsputn (f, data, n) register const char *s = (const char *) data; _IO_size_t to_do = n; int must_flush = 0; - _IO_size_t count; + _IO_size_t count = 0; if (n <= 0) return 0; @@ -1290,7 +1291,6 @@ _IO_new_file_xsputn (f, data, n) (or the filebuf is unbuffered), use sys_write directly. */ /* First figure out how much space is available in the buffer. */ - count = f->_IO_write_end - f->_IO_write_ptr; /* Space available. */ if ((f->_flags & _IO_LINE_BUF) && (f->_flags & _IO_CURRENTLY_PUTTING)) { count = f->_IO_buf_end - f->_IO_write_ptr; @@ -1308,6 +1308,9 @@ _IO_new_file_xsputn (f, data, n) } } } + else if (f->_IO_write_end > f->_IO_write_ptr) + count = f->_IO_write_end - f->_IO_write_ptr; /* Space available. */ + /* Then fill the buffer. */ if (count > 0) { @@ -1338,7 +1341,9 @@ _IO_new_file_xsputn (f, data, n) _IO_size_t block_size, do_write; /* Next flush the (full) buffer. */ if (_IO_OVERFLOW (f, EOF) == EOF) - return n - to_do; + /* If nothing else has to be written we must not signal the + caller that everything has been written. */ + return to_do == 0 ? EOF : n - to_do; /* Try to maintain alignment: write a whole number of blocks. dont_write is what gets left over. */ @@ -1464,8 +1469,7 @@ _IO_file_xsgetn (fp, data, n) } INTDEF(_IO_file_xsgetn) -static _IO_size_t _IO_file_xsgetn_mmap (_IO_FILE *, void *, _IO_size_t) - __THROW; +static _IO_size_t _IO_file_xsgetn_mmap (_IO_FILE *, void *, _IO_size_t); static _IO_size_t _IO_file_xsgetn_mmap (fp, data, n) _IO_FILE *fp; @@ -1524,8 +1528,7 @@ _IO_file_xsgetn_mmap (fp, data, n) return s - (char *) data; } -static _IO_size_t _IO_file_xsgetn_maybe_mmap (_IO_FILE *, void *, _IO_size_t) - __THROW; +static _IO_size_t _IO_file_xsgetn_maybe_mmap (_IO_FILE *, void *, _IO_size_t); static _IO_size_t _IO_file_xsgetn_maybe_mmap (fp, data, n) _IO_FILE *fp; |