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89 lines
2.4 KiB
89 lines
2.4 KiB
#include "client_socket.h"
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#include "current_sandbox.h"
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#include "global_request_scheduler.h"
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#include "local_runqueue_list.h"
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#include "local_runqueue.h"
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#include "sandbox_functions.h"
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__thread static struct ps_list_head local_runqueue_list;
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bool
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local_runqueue_list_is_empty()
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{
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return ps_list_head_empty(&local_runqueue_list);
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}
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/* Get the sandbox at the head of the thread local runqueue */
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struct sandbox *
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local_runqueue_list_get_head()
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{
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return ps_list_head_first_d(&local_runqueue_list, struct sandbox);
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}
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/**
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* Removes the sandbox from the thread-local runqueue
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* @param sandbox sandbox
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*/
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void
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local_runqueue_list_remove(struct sandbox *sandbox_to_remove)
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{
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ps_list_rem_d(sandbox_to_remove);
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}
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struct sandbox *
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local_runqueue_list_remove_and_return()
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{
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struct sandbox *sandbox_to_remove = ps_list_head_first_d(&local_runqueue_list, struct sandbox);
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ps_list_rem_d(sandbox_to_remove);
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return sandbox_to_remove;
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}
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/**
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* Append a sandbox to the tail of the runqueue
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* @returns the appended sandbox
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*/
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void
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local_runqueue_list_append(struct sandbox *sandbox_to_append)
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{
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assert(sandbox_to_append != NULL);
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assert(ps_list_singleton_d(sandbox_to_append));
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ps_list_head_append_d(&local_runqueue_list, sandbox_to_append);
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}
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/* Remove sandbox from head of runqueue and add it to tail */
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void
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local_runqueue_list_rotate()
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{
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/* If runqueue is size one, skip round robin logic since tail equals head */
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if (ps_list_head_one_node(&local_runqueue_list)) return;
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struct sandbox *sandbox_at_head = local_runqueue_list_remove_and_return();
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assert(sandbox_at_head->state == SANDBOX_RUNNING || sandbox_at_head->state == SANDBOX_RUNNABLE);
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local_runqueue_list_append(sandbox_at_head);
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}
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/**
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* Get the next sandbox
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* @return the sandbox to execute or NULL if none are available
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*/
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struct sandbox *
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local_runqueue_list_get_next()
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{
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if (local_runqueue_list_is_empty()) return NULL;
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return local_runqueue_list_get_head();
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}
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void
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local_runqueue_list_initialize()
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{
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ps_list_head_init(&local_runqueue_list);
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/* Register Function Pointers for Abstract Scheduling API */
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struct local_runqueue_config config = { .add_fn = local_runqueue_list_append,
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.is_empty_fn = local_runqueue_list_is_empty,
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.delete_fn = local_runqueue_list_remove,
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.get_next_fn = local_runqueue_list_get_next };
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local_runqueue_initialize(&config);
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};
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