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- /* Copyright (c) 2003-2004, Roger Dingledine
- * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2015, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #include "compat.h"
- #include "util.h"
- /** Return a newly allocated, ready-for-use mutex. */
- tor_mutex_t *
- tor_mutex_new(void)
- {
- tor_mutex_t *m = tor_malloc_zero(sizeof(tor_mutex_t));
- tor_mutex_init(m);
- return m;
- }
- /** Release all storage and system resources held by <b>m</b>. */
- void
- tor_mutex_free(tor_mutex_t *m)
- {
- if (!m)
- return;
- tor_mutex_uninit(m);
- tor_free(m);
- }
- tor_cond_t *
- tor_cond_new(void)
- {
- tor_cond_t *cond = tor_malloc(sizeof(tor_cond_t));
- if (tor_cond_init(cond)<0)
- tor_free(cond);
- return cond;
- }
- void
- tor_cond_free(tor_cond_t *c)
- {
- if (!c)
- return;
- tor_cond_uninit(c);
- tor_free(c);
- }
- /** Identity of the "main" thread */
- static unsigned long main_thread_id = -1;
- /** Start considering the current thread to be the 'main thread'. This has
- * no effect on anything besides in_main_thread(). */
- void
- set_main_thread(void)
- {
- main_thread_id = tor_get_thread_id();
- }
- /** Return true iff called from the main thread. */
- int
- in_main_thread(void)
- {
- return main_thread_id == tor_get_thread_id();
- }
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