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% PT_ISCACHE_SET_LIMIT(3)
<!---
! Copyright (c) 2017-2025, Intel Corporation
! SPDX-License-Identifier: BSD-3-Clause
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions are met:
!
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! this list of conditions and the following disclaimer.
! * Redistributions in binary form must reproduce the above copyright notice,
! this list of conditions and the following disclaimer in the documentation
! and/or other materials provided with the distribution.
! * Neither the name of Intel Corporation nor the names of its contributors
! may be used to endorse or promote products derived from this software
! without specific prior written permission.
!
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!-->
# NAME
pt_iscache_set_limit - set the mapped image section cache limit
# SYNOPSIS
| **\#include `<intel-pt.h>`**
|
| **int pt_iscache_set_limit(struct pt_image_section_cache \**iscache*,**
| **uint64_t *limit*);**
Link with *-lipt*.
# DESCRIPTION
**pt_iscache_set_limit**() sets the mapped image section cache limit. The
*iscache* argument points to the *pt_image_section_cache* object. The *limit*
argument gives the limit in bytes.
The image section cache will spend at most *limit* bytes to keep image sections
mapped as opposed to mapping and unmapping them when reading from them. This
includes the memory for any caches associated with the mapped section.
A *limit* of zero disables caching and clears the cache.
# RETURN VALUE
**pt_iscache_set_limit**() returns zero on success or a negative *pt_error_code*
enumeration constant in case of an error.
# ERRORS
pte_invalid
: The *iscache* argument is NULL.
# SEE ALSO
**pt_iscache_alloc**(3), **pt_iscache_free**(3), **pt_iscache_read**(3)
|
