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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
commit | 3d08cd331c1adcf0d917392f7e527b3f00511748 (patch) | |
tree | 312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man3/malloc_trim.3 | |
parent | Adding debian version 6.7-2. (diff) | |
download | manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip |
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/malloc_trim.3')
-rw-r--r-- | man3/malloc_trim.3 | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/man3/malloc_trim.3 b/man3/malloc_trim.3 deleted file mode 100644 index 02dba1e..0000000 --- a/man3/malloc_trim.3 +++ /dev/null @@ -1,81 +0,0 @@ -'\" t -.\" Copyright (c) 2012 by Michael Kerrisk <mtk.manpages@gmail.com> -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.TH malloc_trim 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -malloc_trim \- release free memory from the heap -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <malloc.h> -.P -.BI "int malloc_trim(size_t " pad ); -.fi -.SH DESCRIPTION -The -.BR malloc_trim () -function attempts to release free memory from the heap -(by calling -.BR sbrk (2) -or -.BR madvise (2) -with suitable arguments). -.P -The -.I pad -argument specifies the amount of free space to leave untrimmed -at the top of the heap. -If this argument is 0, only the minimum amount of memory is maintained -at the top of the heap (i.e., one page or less). -A nonzero argument can be used to maintain some trailing space -at the top of the heap in order to allow future allocations -to be made without having to extend the heap with -.BR sbrk (2). -.SH RETURN VALUE -The -.BR malloc_trim () -function returns 1 if memory was actually released back to the system, -or 0 if it was not possible to release any memory. -.SH ERRORS -No errors are defined. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR malloc_trim () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -GNU. -.SH VERSIONS -glibc 2.0. -.SH NOTES -Only the main heap (using -.BR sbrk (2)) -honors the -.I pad -argument; thread heaps do not. -.P -Since glibc 2.8 this function frees memory in all arenas and in all -chunks with whole free pages. -.\" See commit 68631c8eb92ff38d9da1ae34f6aa048539b199cc -.\" (dated 2007-12-16) which adds iteration over all -.\" arenas and frees all pages in chunks which are free. -.P -Before glibc 2.8 this function only freed memory at the -top of the heap in the main arena. -.SH SEE ALSO -.BR sbrk (2), -.BR malloc (3), -.BR mallopt (3) |