RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-22 19:35:06 +00:00
Code Issues Activity Actions

Lots of hacking to make a very simple "ls" utility.

Browse source 
I added a dead-simple malloc that only allows allocations < 4096 bytes.
It just forwards the request to mmap() every time.

I also added simplified versions of opendir() and readdir().
This commit is contained in:
Andreas Kling 2018-10-24 12:43:52 +02:00
parent 0c5bbac86e
commit bca4b71bfa
19 changed files with 277 additions and 67 deletions
Download patch file Download diff file Expand all files Collapse all files

16
Kernel/Task.cpp
View file

@ -230,6 +230,10 @@ Task::Task(String&& name, uid_t uid, gid_t gid)
, m_state(Runnable)
, m_ring(Ring3)
{
m_fileHandles.append(nullptr);
m_fileHandles.append(nullptr);
m_fileHandles.append(nullptr);
m_nextRegion = LinearAddress(0x600000);
memset(&m_tss, 0, sizeof(m_tss));
@ -280,6 +284,10 @@ Task::Task(void (*e)(), const char* n, IPC::Handle h, RingLevel ring)
, m_state(Runnable)
, m_ring(ring)
{
m_fileHandles.append(nullptr);
m_fileHandles.append(nullptr);
m_fileHandles.append(nullptr);
m_nextRegion = LinearAddress(0x600000);
Region* codeRegion = nullptr;
@ -643,6 +651,14 @@ FileHandle* Task::fileHandleIfExists(int fd)
return nullptr;
}
ssize_t Task::sys$get_dir_entries(int fd, void* buffer, size_t size)
{
auto* handle = fileHandleIfExists(fd);
if (!handle)
return -1;
return handle->get_dir_entries((byte*)buffer, size);
}
int Task::sys$seek(int fd, int offset)
{
auto* handle = fileHandleIfExists(fd);