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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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