/usr/include/zthread.h is in libczmq-dev 3.0.2-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /* =========================================================================
zthread - working with system threads (deprecated)
Copyright (c) the Contributors as noted in the AUTHORS file.
This file is part of CZMQ, the high-level C binding for 0MQ:
http://czmq.zeromq.org.
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
=========================================================================
*/
#ifndef __ZTHREAD_H_INCLUDED__
#define __ZTHREAD_H_INCLUDED__
#ifdef __cplusplus
extern "C" {
#endif
// @interface
// Detached threads follow POSIX pthreads API
typedef void *(zthread_detached_fn) (void *args);
// Attached threads get context and pipe from parent
typedef void (zthread_attached_fn) (void *args, zctx_t *ctx, void *pipe);
// Create a detached thread. A detached thread operates autonomously
// and is used to simulate a separate process. It gets no ctx, and no
// pipe.
CZMQ_EXPORT int
zthread_new (zthread_detached_fn *thread_fn, void *args);
// Create an attached thread. An attached thread gets a ctx and a PAIR
// pipe back to its parent. It must monitor its pipe, and exit if the
// pipe becomes unreadable. Do not destroy the ctx, the thread does this
// automatically when it ends.
CZMQ_EXPORT void *
zthread_fork (zctx_t *ctx, zthread_attached_fn *thread_fn, void *args);
// Self test of this class
CZMQ_EXPORT void
zthread_test (bool verbose);
// @end
#ifdef __cplusplus
}
#endif
#endif
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