diff options
Diffstat (limited to 'man/man3/bin.html')
| -rw-r--r-- | man/man3/bin.html | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/man/man3/bin.html b/man/man3/bin.html new file mode 100644 index 00000000..f016622f --- /dev/null +++ b/man/man3/bin.html @@ -0,0 +1,131 @@ +<head> +<title>bin(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>BIN(3)</b><td align=right><b>BIN(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> + + binalloc, bingrow, binfree – grouped memory allocation<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 <bin.h> + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <tt><font size=+1>typedef struct BinBin; + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>void *binalloc(Bin **bp, ulong size, int clr); + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>void *bingrow(Bin **bp, void *op, ulong osize,<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + ulong size, int clr); + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + </table> + + </table> + </font></tt> + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + + + </table> + + </table> + <tt><font size=+1>void binfree(Bin **bp);<br> + </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 provide simple grouped memory allocation and deallocation. + Items allocated with <i>binalloc</i> are added to the <i>Bin</i> pointed to + by <i>bp</i>. All items in a bin may be freed with one call to <i>binfree</i>; + there is no way to free a single item. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Binalloc</i> returns a pointer to a new block of at least <i>size</i> bytes. + The block is suitably aligned for storage of any type of object. + No two active pointers from <i>binalloc</i> will have the same value. + The call <tt><font size=+1>binalloc(0)</font></tt> returns a valid pointer rather than null. + If <i>clr</i> is non-zero, the allocated memory is set to 0; otherwise, + the contents are undefined. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Bingrow</i> is used to extend the size of a block of memory returned + by <i>binalloc</i>. <i>Bp</i> must point to the same bin group used to allocate + the original block, and <i>osize</i> must be the last size used to allocate + or grow the block. A pointer to a block of at least <i>size</i> bytes + is returned, with the same contents in the first <i>osize + </i>locations. If <i>clr</i> is non-zero, the remaining bytes are set to + 0, and are undefined otherwise. If <i>op</i> is <tt><font size=+1>nil</font></tt>, it and <i>osize</i> are + ignored, and the result is the same as calling <i>binalloc</i>. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Binalloc</i> and <i>bingrow</i> allocate large chunks of memory using <a href="../man3/malloc.html"><i>malloc</i>(3)</a> + and return pieces of these chunks. The chunks are <i>free</i>’d upon + a call to <i>binfree</i>.<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/libbin<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/malloc.html"><i>malloc</i>(3)</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>binalloc</i> and <i>bingrow</i> return 0 if there is no available memory.<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> |