19c17d615SPaolo Bonzini /*
29c17d615SPaolo Bonzini * posix specific declarations
39c17d615SPaolo Bonzini *
49c17d615SPaolo Bonzini * Copyright (c) 2003-2008 Fabrice Bellard
59c17d615SPaolo Bonzini * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
69c17d615SPaolo Bonzini *
79c17d615SPaolo Bonzini * Permission is hereby granted, free of charge, to any person obtaining a copy
89c17d615SPaolo Bonzini * of this software and associated documentation files (the "Software"), to deal
99c17d615SPaolo Bonzini * in the Software without restriction, including without limitation the rights
109c17d615SPaolo Bonzini * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
119c17d615SPaolo Bonzini * copies of the Software, and to permit persons to whom the Software is
129c17d615SPaolo Bonzini * furnished to do so, subject to the following conditions:
139c17d615SPaolo Bonzini *
149c17d615SPaolo Bonzini * The above copyright notice and this permission notice shall be included in
159c17d615SPaolo Bonzini * all copies or substantial portions of the Software.
169c17d615SPaolo Bonzini *
179c17d615SPaolo Bonzini * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
189c17d615SPaolo Bonzini * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
199c17d615SPaolo Bonzini * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
209c17d615SPaolo Bonzini * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
219c17d615SPaolo Bonzini * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
229c17d615SPaolo Bonzini * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
239c17d615SPaolo Bonzini * THE SOFTWARE.
249c17d615SPaolo Bonzini */
259c17d615SPaolo Bonzini
269c17d615SPaolo Bonzini #ifndef QEMU_OS_POSIX_H
279c17d615SPaolo Bonzini #define QEMU_OS_POSIX_H
289c17d615SPaolo Bonzini
2902d0e095SPaolo Bonzini #include <sys/mman.h>
30a2d96af4SDaniel P. Berrange #include <sys/socket.h>
31a2d96af4SDaniel P. Berrange #include <netinet/in.h>
32a2d96af4SDaniel P. Berrange #include <netinet/tcp.h>
33a2d96af4SDaniel P. Berrange #include <arpa/inet.h>
34a2d96af4SDaniel P. Berrange #include <netdb.h>
35a2d96af4SDaniel P. Berrange #include <sys/un.h>
36506f40ffSWenchao Xia
374d04351fSChristopher Covington #ifdef CONFIG_SYSMACROS
384d04351fSChristopher Covington #include <sys/sysmacros.h>
394d04351fSChristopher Covington #endif
404d04351fSChristopher Covington
41415a9fb8SPeter Maydell #ifdef __cplusplus
42415a9fb8SPeter Maydell extern "C" {
43415a9fb8SPeter Maydell #endif
44415a9fb8SPeter Maydell
459c17d615SPaolo Bonzini void os_set_line_buffering(void);
46327adeecSMarc-André Lureau void os_setup_early_signal_handling(void);
479c17d615SPaolo Bonzini void os_set_proc_name(const char *s);
489c17d615SPaolo Bonzini void os_setup_signal_handling(void);
49b21bdbb5SMichael Tokarev int os_set_daemonize(bool d);
50b21bdbb5SMichael Tokarev bool is_daemonized(void);
519c17d615SPaolo Bonzini void os_daemonize(void);
52d2803376SPhilippe Mathieu-Daudé bool os_set_runas(const char *user_id);
53d2803376SPhilippe Mathieu-Daudé void os_set_chroot(const char *path);
54*03e471c4SFiona Ebner void os_setup_limits(void);
559c17d615SPaolo Bonzini void os_setup_post(void);
56888a6bc6SSatoru Moriya int os_mlock(void);
579c17d615SPaolo Bonzini
588737d9e0SPeter Lieven /**
598737d9e0SPeter Lieven * qemu_alloc_stack:
608737d9e0SPeter Lieven * @sz: pointer to a size_t holding the requested usable stack size
618737d9e0SPeter Lieven *
628737d9e0SPeter Lieven * Allocate memory that can be used as a stack, for instance for
638737d9e0SPeter Lieven * coroutines. If the memory cannot be allocated, this function
648737d9e0SPeter Lieven * will abort (like g_malloc()). This function also inserts an
658737d9e0SPeter Lieven * additional guard page to catch a potential stack overflow.
668737d9e0SPeter Lieven * Note that the memory required for the guard page and alignment
678737d9e0SPeter Lieven * and minimal stack size restrictions will increase the value of sz.
688737d9e0SPeter Lieven *
698737d9e0SPeter Lieven * The allocated stack must be freed with qemu_free_stack().
708737d9e0SPeter Lieven *
718737d9e0SPeter Lieven * Returns: pointer to (the lowest address of) the stack memory.
728737d9e0SPeter Lieven */
738737d9e0SPeter Lieven void *qemu_alloc_stack(size_t *sz);
748737d9e0SPeter Lieven
758737d9e0SPeter Lieven /**
768737d9e0SPeter Lieven * qemu_free_stack:
778737d9e0SPeter Lieven * @stack: stack to free
788737d9e0SPeter Lieven * @sz: size of stack in bytes
798737d9e0SPeter Lieven *
808737d9e0SPeter Lieven * Free a stack allocated via qemu_alloc_stack(). Note that sz must
818737d9e0SPeter Lieven * be exactly the adjusted stack size returned by qemu_alloc_stack.
828737d9e0SPeter Lieven */
838737d9e0SPeter Lieven void qemu_free_stack(void *stack, size_t sz);
848737d9e0SPeter Lieven
851ee73216SRichard Henderson /* POSIX and Mingw32 differ in the name of the stdio lock functions. */
861ee73216SRichard Henderson
qemu_flockfile(FILE * f)871ee73216SRichard Henderson static inline void qemu_flockfile(FILE *f)
881ee73216SRichard Henderson {
891ee73216SRichard Henderson flockfile(f);
901ee73216SRichard Henderson }
911ee73216SRichard Henderson
qemu_funlockfile(FILE * f)921ee73216SRichard Henderson static inline void qemu_funlockfile(FILE *f)
931ee73216SRichard Henderson {
941ee73216SRichard Henderson funlockfile(f);
951ee73216SRichard Henderson }
961ee73216SRichard Henderson
97415a9fb8SPeter Maydell #ifdef __cplusplus
98415a9fb8SPeter Maydell }
99415a9fb8SPeter Maydell #endif
100415a9fb8SPeter Maydell
1019c17d615SPaolo Bonzini #endif
102