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