New repo setup

src/sched/process.h

@@ -0,0 +1,90 @@
+#ifndef KERNEL_PROCESS_H
+#define KERNEL_PROCESS_H
+
+#include "memory/addressspace.h"
+#include "context.h"
+#include "types/pid.h"
+#include "signalaction.h"
+#include "containers/binary_search_tree.h"
+#include "fs/filecontext.h"
+
+namespace kernel::sched
+{
+
+    class Process
+    {
+    public:
+        enum class State
+        {
+            ACTIVE,
+            SIGNAL,
+            SIGWAIT
+        };
+
+        static pid_t nextPid();
+
+        Process();
+
+        Process(pid_t pid, pid_t parent, void *entry, void *stack, void *kernelStack, kernel::memory::AddressSpace *addressSpace);
+
+        Process(Process &other);
+
+        ~Process();
+
+        Process &operator=(Process &other);
+
+        int exec(void *pc, void *stack, void *kernelStack, kernel::memory::AddressSpace *addressSpace);
+
+        Process *clone(pid_t pid, void *pc, void *stack, void *userdata);
+
+        Context *getContext();
+
+        void storeContext(Context *newCtx);
+
+        State getState() const;
+
+        void setState(State newState);
+
+        pid_t getPid() const;
+
+        pid_t getParent() const;
+
+        kernel::memory::AddressSpace *getAddressSpace();
+
+        void setSignalAction(int signal, void (*handler)(void *), void (*trampoline)(void), void *userdata);
+
+        int signalTrigger(int sig);
+
+        void signalReturn();
+
+        void storeProgramArgs(char *const argv[], char *const envp[]);
+
+        kernel::fs::FileContext *getFileContext(int fd) const;
+
+        int storeFileContext(kernel::fs::FileContext *f);
+
+        int storeFileContext(kernel::fs::FileContext *f, int fd);
+
+        int closeFileContext(int fd);
+
+    private:
+        static pid_t nextPidVal;
+
+        static const int MAX_SIGNAL = 64;
+
+        pid_t pid, parent;
+
+        Context ctx, *backupCtx;
+
+        State state;
+
+        kernel::memory::AddressSpace *addressSpace;
+
+        SignalAction signalHandlers[MAX_SIGNAL];
+
+        binary_search_tree<int, kernel::fs::FileContext *> files;
+    };
+
+}
+
+#endif