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| author | rsc <devnull@localhost> | 2005-01-14 17:37:50 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2005-01-14 17:37:50 +0000 |
| commit | adc93f6097615f16d57e8a24a256302f2144ec4e (patch) | |
| tree | e190b0616aa060c646d62de835babf8396d36ccd /man/man3/bio.html | |
| parent | 1ac1981659ba7abcc1c76436e4b4dfc2bc616d2a (diff) | |
| download | plan9port-adc93f6097615f16d57e8a24a256302f2144ec4e.tar.gz plan9port-adc93f6097615f16d57e8a24a256302f2144ec4e.tar.bz2 plan9port-adc93f6097615f16d57e8a24a256302f2144ec4e.zip | |
cut out the html - they're going to cause diffing problems.
Diffstat (limited to 'man/man3/bio.html')
| -rw-r--r-- | man/man3/bio.html | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/man/man3/bio.html b/man/man3/bio.html deleted file mode 100644 index 78259922..00000000 --- a/man/man3/bio.html +++ /dev/null @@ -1,293 +0,0 @@ -<head> -<title>bio(3) - Plan 9 from User Space</title> -<meta content="text/html; charset=utf-8" http-equiv=Content-Type> -</head> -<body bgcolor=#ffffff> -<table border=0 cellpadding=0 cellspacing=0 width=100%> -<tr height=10><td> -<tr><td width=20><td> -<tr><td width=20><td><b>BIO(3)</b><td align=right><b>BIO(3)</b> -<tr><td width=20><td colspan=2> - <br> -<p><font size=+1><b>NAME </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - Bopen, Bfdopen, Binit, Binits, Brdline, Brdstr, Bgetc, Bgetrune, - Bgetd, Bungetc, Bungetrune, Bread, Bseek, Boffset, Bfildes, Blinelen, - Bputc, Bputrune, Bprint, Bvprint, Bwrite, Bflush, Bterm, Bbuffered - – buffered input/output<br> - -</table> -<p><font size=+1><b>SYNOPSIS </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <tt><font size=+1>#include <u.h><br> - #include <libc.h><br> - #include <bio.h> - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>Biobuf* Bopen(char *file, int mode) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>Biobuf* Bfdopen(int fd, int mode) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Binit(Biobuf *bp, int fd, int mode) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Binits(Biobufhdr *bp, int fd, int mode, uchar *buf, int size) - - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bterm(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bprint(Biobufhdr *bp, char *format, ...) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bvprint(Biobufhdr *bp, char *format, va_list arglist); - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>void* Brdline(Biobufhdr *bp, int delim) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>char* Brdstr(Biobufhdr *bp, int delim, int nulldelim) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Blinelen(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>vlong Boffset(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bfildes(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bgetc(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>long Bgetrune(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bgetd(Biobufhdr *bp, double *d) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bungetc(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bungetrune(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>vlong Bseek(Biobufhdr *bp, vlong n, int type) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bputc(Biobufhdr *bp, int c) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bputrune(Biobufhdr *bp, long c) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>long Bread(Biobufhdr *bp, void *addr, long nbytes) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>long Bwrite(Biobufhdr *bp, void *addr, long nbytes) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bflush(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <tt><font size=+1>int Bbuffered(Biobufhdr *bp) - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - -</table> -<p><font size=+1><b>DESCRIPTION </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - These routines implement fast buffered I/O. I/O on different file - descriptors is independent. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bopen</i> opens <i>file</i> for mode <tt><font size=+1>OREAD</font></tt> or creates for mode <tt><font size=+1>OWRITE</font></tt>. It - calls <a href="../man3/malloc.html"><i>malloc</i>(3)</a> to allocate a buffer. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bfdopen</i> allocates a buffer for the already-open file descriptor - <i>fd</i> for mode <tt><font size=+1>OREAD</font></tt> or <tt><font size=+1>OWRITE</font></tt>. It calls <a href="../man3/malloc.html"><i>malloc</i>(3)</a> to allocate a - buffer. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Binit</i> initializes a standard size buffer, type <i>Biobuf</i>, with the - open file descriptor passed in by the user. <i>Binits</i> initializes - a non-standard size buffer, type <i>Biobufhdr</i>, with the open file - descriptor, buffer area, and buffer size passed in by the user. - <i>Biobuf</i> and <i>Biobufhdr</i> are related by the declaration: - - <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <tt><font size=+1>typedef struct Biobuf Biobuf;<br> - struct Biobuf<br> - {<br> - - <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - Biobufhdr;<br> - uchar b[Bungetsize+Bsize];<br> - - </table> - };<br> - - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - - </table> - Arguments of types pointer to Biobuf and pointer to Biobufhdr - can be used interchangeably in the following routines. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bopen</i>, <i>Binit</i>, or <i>Binits</i> should be called before any of the other - routines on that buffer. <i>Bfildes</i> returns the integer file descriptor - of the associated open file. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bterm</i> flushes the buffer for <i>bp</i>. If the buffer was allocated by - <i>Bopen</i>, the buffer is <i>freed</i> and the file is closed. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Brdline</i> reads a string from the file associated with <i>bp</i> up to - and including the first <i>delim</i> character. The delimiter character - at the end of the line is not altered. <i>Brdline</i> returns a pointer - to the start of the line or <tt><font size=+1>0</font></tt> on end-of-file or read error. <i>Blinelen</i> - returns the length (including the delimiter) of the most recent - string - returned by <i>Brdline</i>. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Brdstr</i> returns a <a href="../man3/malloc.html"><i>malloc</i>(3)</a>-allocated buffer containing the next - line of input delimited by <i>delim</i>, terminated by a NUL (0) byte. - Unlike <i>Brdline</i>, which returns when its buffer is full even if - no delimiter has been found, <i>Brdstr</i> will return an arbitrarily - long line in a single call. If <i>nulldelim</i> is set, the terminal - delimiter will be - overwritten with a NUL. After a successful call to <i>Brdstr</i>, the - return value of <i>Blinelen</i> will be the length of the returned buffer, - excluding the NUL. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bgetc</i> returns the next character from <i>bp</i>, or a negative value - at end of file. <i>Bungetc</i> may be called immediately after <i>Bgetc</i> - to allow the same character to be reread. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bgetrune</i> calls <i>Bgetc</i> to read the bytes of the next UTF sequence - in the input stream and returns the value of the rune represented - by the sequence. It returns a negative value at end of file. <i>Bungetrune</i> - may be called immediately after <i>Bgetrune</i> to allow the same UTF - sequence to be reread as either bytes or a rune. - <i>Bungetc</i> and <i>Bungetrune</i> may back up a maximum of five bytes. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bgetd</i> uses <i>charstod</i> (see <a href="../man3/atof.html"><i>atof</i>(3)</a>) and <i>Bgetc</i> to read the formatted - floating-point number in the input stream, skipping initial blanks - and tabs. The value is stored in <tt><font size=+1>*d. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - </font></tt> - <i>Bread</i> reads <i>nbytes</i> of data from <i>bp</i> into memory starting at <i>addr</i>. - The number of bytes read is returned on success and a negative - value is returned if a read error occurred. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bseek</i> applies <a href="../man3/seek.html"><i>seek</i>(3)</a> to <i>bp</i>. It returns the new file offset. <i>Boffset</i> - returns the file offset of the next character to be processed. - - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bputc</i> outputs the low order 8 bits of <i>c</i> on <i>bp</i>. If this causes - a <i>write</i> to occur and there is an error, a negative value is returned. - Otherwise, a zero is returned. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bputrune</i> calls <i>Bputc</i> to output the low order 16 bits of <i>c</i> as a - rune in UTF format on the output stream. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bprint</i> is a buffered interface to <a href="../man3/print.html"><i>print</i>(3)</a>. If this causes a <i>write</i> - to occur and there is an error, a negative value (<tt><font size=+1>Beof</font></tt>) is returned. - Otherwise, the number of bytes output is returned. <i>Bvprint</i> does - the same except it takes as argument a <tt><font size=+1>va_list</font></tt> parameter, so it - can be called within a variadic function. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bwrite</i> outputs <i>nbytes</i> of data starting at <i>addr</i> to <i>bp</i>. If this - causes a <i>write</i> to occur and there is an error, a negative value - is returned. Otherwise, the number of bytes written is returned. - - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bflush</i> causes any buffered output associated with <i>bp</i> to be written. - The return is as for <i>Bputc</i>. <i>Bflush</i> is called on exit for every - buffer still open for writing. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - <i>Bbuffered</i> returns the number of bytes in the buffer. When reading, - this is the number of bytes still available from the last read - on the file; when writing, it is the number of bytes ready to - be written.<br> - -</table> -<p><font size=+1><b>SOURCE </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <tt><font size=+1>/usr/local/plan9/src/libbio<br> - </font></tt> -</table> -<p><font size=+1><b>SEE ALSO </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <a href="../man3/open.html"><i>open</i>(3)</a>, <a href="../man3/print.html"><i>print</i>(3)</a>, <a href="../man3/exits.html"><i>exits</i>(3)</a>, <a href="../man7/utf.html"><i>utf</i>(7)</a>,<br> - -</table> -<p><font size=+1><b>DIAGNOSTICS </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <i>Bio</i> routines that return integers yield <tt><font size=+1>Beof</font></tt> if <i>bp</i> is not the - descriptor of an open file. <i>Bopen</i> returns zero if the file cannot - be opened in the given mode. All routines set <i>errstr</i> on error.<br> - -</table> -<p><font size=+1><b>BUGS </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <i>Brdline</i> returns an error on strings longer than the buffer associated - with the file and also if the end-of-file is encountered before - a delimiter. <i>Blinelen</i> will tell how many characters are available - in these cases. In the case of a true end-of-file, <i>Blinelen</i> will - return zero. At the cost of allocating a buffer, <i>Brdstr</i> sidesteps - these issues. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - The data returned by <i>Brdline</i> may be overwritten by calls to any - other <i>bio</i> routine on the same <i>bp.</i><br> - -</table> - -<td width=20> -<tr height=20><td> -</table> -<!-- TRAILER --> -<table border=0 cellpadding=0 cellspacing=0 width=100%> -<tr height=15><td width=10><td><td width=10> -<tr><td><td> -<center> -<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a> -</center> -</table> -<!-- TRAILER --> -</body></html> |