mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-25 15:39:55 +00:00
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. 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.
|
|
*
|
|
* 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 HOLDER 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 CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <AK/Memory.h>
|
|
#include <Kernel/ProcessTracer.h>
|
|
|
|
namespace Kernel {
|
|
|
|
ProcessTracer::ProcessTracer(pid_t pid)
|
|
: m_pid(pid)
|
|
{
|
|
}
|
|
|
|
ProcessTracer::~ProcessTracer()
|
|
{
|
|
}
|
|
|
|
void ProcessTracer::did_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3, u32 result)
|
|
{
|
|
CallData data = { function, arg1, arg2, arg3, result };
|
|
m_calls.enqueue(data);
|
|
}
|
|
|
|
int ProcessTracer::read(FileDescription&, u8* buffer, int buffer_size)
|
|
{
|
|
if (m_calls.is_empty())
|
|
return 0;
|
|
auto data = m_calls.dequeue();
|
|
// FIXME: This should not be an assertion.
|
|
ASSERT(buffer_size == sizeof(data));
|
|
memcpy(buffer, &data, sizeof(data));
|
|
return sizeof(data);
|
|
}
|
|
|
|
String ProcessTracer::absolute_path(const FileDescription&) const
|
|
{
|
|
return String::format("tracer:%d", m_pid);
|
|
}
|
|
|
|
}
|