mirror of
https://github.com/roytam1/UXP.git
synced 2026-05-26 22:48:47 +00:00
Moonchild
2f117eecaa
Vim control lines were re-introduced or not entirely cleaned up. This nukes them again. Removing from embedding, extensions, gfx, hal, ipc, layout, mailnews, media and memory. More to come.
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/mozalloc_abort.h"
|
|
#include "mozilla/mozalloc_oom.h"
|
|
#include "mozilla/Assertions.h"
|
|
|
|
static mozalloc_oom_abort_handler gAbortHandler;
|
|
|
|
#define OOM_MSG_LEADER "out of memory: 0x"
|
|
#define OOM_MSG_DIGITS "0000000000000000" // large enough for 2^64
|
|
#define OOM_MSG_TRAILER " bytes requested"
|
|
#define OOM_MSG_FIRST_DIGIT_OFFSET sizeof(OOM_MSG_LEADER) - 1
|
|
#define OOM_MSG_LAST_DIGIT_OFFSET sizeof(OOM_MSG_LEADER) + \
|
|
sizeof(OOM_MSG_DIGITS) - 3
|
|
|
|
static const char *hex = "0123456789ABCDEF";
|
|
|
|
void
|
|
mozalloc_handle_oom(size_t size)
|
|
{
|
|
char oomMsg[] = OOM_MSG_LEADER OOM_MSG_DIGITS OOM_MSG_TRAILER;
|
|
size_t i;
|
|
|
|
// NB: this is handle_oom() stage 1, which simply aborts on OOM.
|
|
// we might proceed to a stage 2 in which an attempt is made to
|
|
// reclaim memory
|
|
|
|
if (gAbortHandler)
|
|
gAbortHandler(size);
|
|
|
|
static_assert(OOM_MSG_FIRST_DIGIT_OFFSET > 0,
|
|
"Loop below will never terminate (i can't go below 0)");
|
|
|
|
// Insert size into the diagnostic message using only primitive operations
|
|
for (i = OOM_MSG_LAST_DIGIT_OFFSET;
|
|
size && i >= OOM_MSG_FIRST_DIGIT_OFFSET; i--) {
|
|
oomMsg[i] = hex[size % 16];
|
|
size /= 16;
|
|
}
|
|
|
|
mozalloc_abort(oomMsg);
|
|
}
|
|
|
|
void
|
|
mozalloc_set_oom_abort_handler(mozalloc_oom_abort_handler handler)
|
|
{
|
|
gAbortHandler = handler;
|
|
}
|