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mmap all the font files!

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Font now uses the same in-memory format as the font files we have on disk.
This allows us to simply mmap() the font files and not use any additional
memory for them. Very cool! :^)

Hacking on this exposed a bug in file-backed VMObjects where the first client
to instantiate a VMObject for a specific inode also got to decide its size.
Since file-backed VMObjects always have the same size as the underlying file,
this made no sense, so I removed the ability to even set a size in that case.
This commit is contained in:
Andreas Kling 2019-02-05 06:43:33 +01:00
parent 612c02307e
commit a258d6507a
11 changed files with 134 additions and 110 deletions
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1
Kernel/Process.h
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@ -52,6 +52,7 @@ class Process : public InlineLinkedListNode<Process>, public Weakable<Process> {
friend class InlineLinkedListNode<Process>;
friend class WSWindowManager; // FIXME: Make a better API for allocate_region().
friend class GraphicsBitmap; // FIXME: Make a better API for allocate_region().
friend class Font; //FIXME: This is beyond gross.
public:
static Process* create_kernel_process(String&& name, void (*entry)());
static Process* create_user_process(const String& path, uid_t, gid_t, pid_t ppid, int& error, Vector<String>&& arguments = Vector<String>(), Vector<String>&& environment = Vector<String>(), TTY* = nullptr);