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Diffstat (limited to 'src/common/workqueue.h')
| -rw-r--r-- | src/common/workqueue.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/common/workqueue.h b/src/common/workqueue.h new file mode 100644 index 0000000000..92e82b8a48 --- /dev/null +++ b/src/common/workqueue.h @@ -0,0 +1,48 @@ +/* Copyright (c) 2013, The Tor Project, Inc. */ +/* See LICENSE for licensing information */ + +#ifndef TOR_WORKQUEUE_H +#define TOR_WORKQUEUE_H + +#include "compat.h" + +/** A replyqueue is used to tell the main thread about the outcome of + * work that we queued for the the workers. */ +typedef struct replyqueue_s replyqueue_t; +/** A thread-pool manages starting threads and passing work to them. */ +typedef struct threadpool_s threadpool_t; +/** A workqueue entry represents a request that has been passed to a thread + * pool. */ +typedef struct workqueue_entry_s workqueue_entry_t; + +/** Possible return value from a work function: indicates success. */ +#define WQ_RPL_REPLY 0 +/** Possible return value from a work function: indicates fatal error */ +#define WQ_RPL_ERROR 1 +/** Possible return value from a work function: indicates thread is shutting + * down. */ +#define WQ_RPL_SHUTDOWN 2 + +workqueue_entry_t *threadpool_queue_work(threadpool_t *pool, + int (*fn)(void *, void *), + void (*reply_fn)(void *), + void *arg); +int threadpool_queue_update(threadpool_t *pool, + void *(*dup_fn)(void *), + int (*fn)(void *, void *), + void (*free_fn)(void *), + void *arg); +void *workqueue_entry_cancel(workqueue_entry_t *pending_work); +threadpool_t *threadpool_new(int n_threads, + replyqueue_t *replyqueue, + void *(*new_thread_state_fn)(void*), + void (*free_thread_state_fn)(void*), + void *arg); +replyqueue_t *threadpool_get_replyqueue(threadpool_t *tp); + +replyqueue_t *replyqueue_new(uint32_t alertsocks_flags); +tor_socket_t replyqueue_get_socket(replyqueue_t *rq); +void replyqueue_process(replyqueue_t *queue); + +#endif + |