1/*
2 * posix specific declarations
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25
26#ifndef QEMU_OS_POSIX_H
27#define QEMU_OS_POSIX_H
28
29#include <sys/mman.h>
30#include <sys/socket.h>
31#include <netinet/in.h>
32#include <netinet/tcp.h>
33#include <arpa/inet.h>
34#include <netdb.h>
35#include <sys/un.h>
36
37#ifdef CONFIG_SYSMACROS
38#include <sys/sysmacros.h>
39#endif
40
41void os_set_line_buffering(void);
42void os_set_proc_name(const char *s);
43void os_setup_signal_handling(void);
44void os_daemonize(void);
45void os_setup_post(void);
46int os_mlock(void);
47
48#define closesocket(s) close(s)
49#define ioctlsocket(s, r, v) ioctl(s, r, v)
50
51typedef struct timeval qemu_timeval;
52#define qemu_gettimeofday(tp) gettimeofday(tp, NULL)
53
54bool is_daemonized(void);
55
56/**
57 * qemu_alloc_stack:
58 * @sz: pointer to a size_t holding the requested usable stack size
59 *
60 * Allocate memory that can be used as a stack, for instance for
61 * coroutines. If the memory cannot be allocated, this function
62 * will abort (like g_malloc()). This function also inserts an
63 * additional guard page to catch a potential stack overflow.
64 * Note that the memory required for the guard page and alignment
65 * and minimal stack size restrictions will increase the value of sz.
66 *
67 * The allocated stack must be freed with qemu_free_stack().
68 *
69 * Returns: pointer to (the lowest address of) the stack memory.
70 */
71void *qemu_alloc_stack(size_t *sz);
72
73/**
74 * qemu_free_stack:
75 * @stack: stack to free
76 * @sz: size of stack in bytes
77 *
78 * Free a stack allocated via qemu_alloc_stack(). Note that sz must
79 * be exactly the adjusted stack size returned by qemu_alloc_stack.
80 */
81void qemu_free_stack(void *stack, size_t sz);
82
83/* POSIX and Mingw32 differ in the name of the stdio lock functions. */
84
85static inline void qemu_flockfile(FILE *f)
86{
87 flockfile(f);
88}
89
90static inline void qemu_funlockfile(FILE *f)
91{
92 funlockfile(f);
93}
94
95#endif
96