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Kernel+ProcessManager: Let processes have an icon and show it in the table.

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Processes can now have an icon assigned, which is essentially a 16x16 RGBA32
bitmap exposed as a shared buffer ID.

You set the icon ID by calling set_process_icon(int) and the icon ID will be
exposed through /proc/all.

To make this work, I added a mechanism for making shared buffers globally
accessible. For safety reasons, each app seals the icon buffer before making
it global.

Right now the first call to GWindow::set_icon() is what determines the
process icon. We'll probably change this in the future. :^)
This commit is contained in:
Andreas Kling 2019-07-29 07:26:01 +02:00
parent 7356fd389f
commit 5ded77df39
14 changed files with 97 additions and 2 deletions
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12
Libraries/LibC/unistd.cpp
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@ -442,6 +442,18 @@ int share_buffer_with(int shared_buffer_id, pid_t peer_pid)
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int share_buffer_globally(int shared_buffer_id)
{
int rc = syscall(SC_share_buffer_globally, shared_buffer_id);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int set_process_icon(int icon_id)
{
int rc = syscall(SC_set_process_icon, icon_id);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
void* get_shared_buffer(int shared_buffer_id)
{
int rc = syscall(SC_get_shared_buffer, shared_buffer_id);