1 files changed, 0 insertions, 121 deletions
diff --git a/kernel/ipc.c b/kernel/ipc.c
deleted file mode 100644
index a3e1160..0000000
--- a/kernel/ipc.c
+++ /dev/null
@@ -1,121 +0,0 @@
-#include <assert.h>
-#include <interrupts.h>
-#include <ipc.h>
-#include <math.h>
-#include <stdbool.h>
-#include <string.h>
-
-struct IpcEndpoint {
-  u8 in_use;
-  u32 pid;
-};
-
-struct IpcEndpoint ipc_endpoints[100];
-
-bool ipc_register_endpoint(u32 endpoint) {
-  if (endpoint >= 100) {
-    return false;
-  }
-  if (ipc_endpoints[endpoint].in_use) {
-    return false;
-  }
-  ipc_endpoints[endpoint].in_use = 1;
-  ipc_endpoints[endpoint].pid = current_task->pid;
-  return true;
-}
-
-bool ipc_endpoint_to_pid(u32 endpoint, u32 *pid) {
-  if (endpoint >= 100) {
-    return false;
-  }
-  if (!ipc_endpoints[endpoint].in_use) {
-    return false;
-  }
-  *pid = ipc_endpoints[endpoint].pid;
-  return true;
-}
-
-int ipc_get_mailbox(u32 id, struct IpcMailbox **out) {
-  process_t *p;
-  if (!get_task_from_pid(id, &p)) {
-    return 0;
-  }
-  *out = &p->ipc_mailbox;
-  return 1;
-}
-
-int ipc_has_data(process_t *p) {
-  if (!p) {
-    p = current_task;
-  }
-  struct IpcMailbox *handler = &p->ipc_mailbox;
-  u32 read_ptr = handler->read_ptr;
-  struct IpcMessage *ipc_message = &handler->data[read_ptr];
-  return ipc_message->is_used;
-}
-
-int ipc_read(u8 *buffer, u32 length, u32 *sender_pid) {
-  struct IpcMailbox *handler = &current_task->ipc_mailbox;
-
-  u32 read_ptr = handler->read_ptr;
-  struct IpcMessage *ipc_message = &handler->data[read_ptr];
-  for (;;) {
-    if (!ipc_message->is_used) {
-      if (current_task->is_interrupted) {
-        current_task->is_interrupted = 0;
-        current_task->is_halted = 0;
-        return 0;
-      }
-      current_task->is_halted = 1;
-      switch_task();
-      continue;
-    }
-    break;
-  }
-  current_task->is_halted = 0;
-  disable_interrupts();
-  ipc_message->is_used = 0;
-  // TODO: Verify sender_pid is a valid address
-  if (sender_pid) {
-    assert(mmu_is_valid_userpointer(sender_pid, sizeof(ipc_message->sender_pid)));
-    *sender_pid = ipc_message->sender_pid;
-  }
-
-  u32 len = min(length, ipc_message->size);
-  memcpy(buffer, ipc_message->buffer, len);
-
-  // Update read_ptr
-  read_ptr++;
-  if (read_ptr >= IPC_NUM_DATA) {
-    read_ptr = 0;
-  }
-  handler->read_ptr = read_ptr;
-  return len;
-}
-
-int ipc_write_to_process(int pid, u8 *buffer, u32 length) {
-  struct IpcMailbox *handler;
-  assert(ipc_get_mailbox(pid, &handler));
-
-  u32 write_ptr = handler->write_ptr;
-  struct IpcMessage *ipc_message = &handler->data[write_ptr];
-  ipc_message->is_used = 1;
-  u32 len = min(IPC_BUFFER_SIZE, length);
-  ipc_message->sender_pid = current_task->pid;
-  ipc_message->size = len;
-  memcpy(ipc_message->buffer, buffer, len);
-
-  // Update write_ptr
-  write_ptr++;
-  if (write_ptr >= IPC_NUM_DATA) {
-    write_ptr = 0;
-  }
-  handler->write_ptr = write_ptr;
-  return len;
-}
-
-int ipc_write(int endpoint, u8 *buffer, u32 length) {
-  u32 pid;
-  assert(ipc_endpoint_to_pid(endpoint, &pid));
-  return ipc_write_to_process(pid, buffer, length);
-}