76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2007-2009 H. Peter Anvin - All Rights Reserved
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* Copyright 2009 H. Peter Anvin - All Rights Reserved
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall
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* be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* memscan.c
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*
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* Query the system for free memory
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*/
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#include <syslinux/memscan.h>
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static LIST_HEAD(syslinux_memscan_head);
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/*
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* Add a memscan entry to the list.
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*/
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void syslinux_memscan_add(struct syslinux_memscan *entry)
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{
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list_add(&entry->next, &syslinux_memscan_head);
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}
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/*
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* Build a new memscan entry and add it to the list.
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*/
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int syslinux_memscan_new(int func(scan_memory_callback_t, void *data))
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{
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struct syslinux_memscan *entry;
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entry = malloc(sizeof *entry);
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if (!entry)
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return -1;
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entry->func = func;
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syslinux_memscan_add(entry);
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return 0;
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}
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int syslinux_scan_memory(scan_memory_callback_t callback, void *data)
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{
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struct syslinux_memscan *entry;
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int rv = 0;
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list_for_each_entry(entry, &syslinux_memscan_head, next) {
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rv = entry->func(callback, data);
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if (rv)
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break;
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}
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return rv;
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}
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