Started work on syscalls

1 files changed, 47 insertions, 0 deletions

diff --git a/common/uapi/proc.c b/common/uapi/proc.c
new file mode 100644
index 0000000..dd05bad
--- /dev/null
+++ b/common/uapi/proc.c
@@ -0,0 +1,47 @@
+#include <apos/uapi.h>
+
+/* Not entirely sure how I should handle forks/execs etc, mostly whether I
+ * should allow forks/execs to be called directly or only though the process
+ * manager. Probably though the process manager, although that will add in a
+ * slight bit of delay.
+ *
+ * I suppose I could add in a runtime parameter
+ * that would allow them to be called directly, and then the process manager
+ * would have to periodically ask the kernel about all threads it is aware of
+ * via sys_sync. Dunno.
+ */
+vm_t sys_fork(vm_t pid, vm_t u0, vm_t u1, vm_t u2)
+{
+	UNUSED(u0); UNUSED(u1); UNUSED(u2);
+	/* TODO: create new thread in the same process family */
+	return 0;
+}
+
+vm_t sys_exec(vm_t pid, vm_t bin, vm_t argc, vm_t argv)
+{
+	/* TODO: execute new process */
+	return 0;
+}
+
+vm_t sys_signal(vm_t pid, vm_t signal, vm_t u0, vm_t u1)
+{
+	UNUSED(u0); UNUSED(u1);
+	/* TODO: signals? */
+	return 0;
+}
+
+vm_t sys_switch(vm_t pid, vm_t u0, vm_t u1, vm_t u2)
+{
+	UNUSED(u0); UNUSED(u1); UNUSED(u2);
+	/* TODO: switch to process */
+	return 0;
+}
+
+vm_t sys_sync(vm_t buf, vm_t size, vm_t u0, vm_t u1)
+{
+	UNUSED(u0); UNUSED(u1);
+	/* check that only the process manager can use this syscall, otherwise
+	 * just dump process info into the buffer (I guess, not sure if this
+	 * will be quite required */
+	return 0;
+}