/* * This file is supposed to be included only by .c files. No header file should * depend on qemu-common.h, as this would easily lead to circular header * dependencies. * * If a header file uses a definition from qemu-common.h, that definition * must be moved to a separate header file, and the header that uses it * must include that header. */ #ifndef QEMU_COMMON_H #define QEMU_COMMON_H #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) /* Copyright string for -version arguments, About dialogs, etc */ #define QEMU_COPYRIGHT "Copyright (c) 2003-2020 " \ "Fabrice Bellard and the QEMU Project developers" /* Bug reporting information for --help arguments, About dialogs, etc */ #define QEMU_HELP_BOTTOM \ "See <https://qemu.org/contribute/report-a-bug> for how to report bugs.\n" \ "More information on the QEMU project at <https://qemu.org>." /* main function, renamed */ #if defined(CONFIG_COCOA) int qemu_main(int argc, char **argv, char **envp); #endif void qemu_get_timedate(struct tm *tm, int offset); int qemu_timedate_diff(struct tm *tm); void *qemu_oom_check(void *ptr); ssize_t qemu_write_full(int fd, const void *buf, size_t count) QEMU_WARN_UNUSED_RESULT; #ifndef _WIN32 int qemu_pipe(int pipefd[2]); /* like openpty() but also makes it raw; return master fd */ int qemu_openpty_raw(int *aslave, char *pty_name); #endif #ifdef _WIN32 /* MinGW needs type casts for the 'buf' and 'optval' arguments. */ #define qemu_getsockopt(sockfd, level, optname, optval, optlen) \ getsockopt(sockfd, level, optname, (void *)optval, optlen) #define qemu_setsockopt(sockfd, level, optname, optval, optlen) \ setsockopt(sockfd, level, optname, (const void *)optval, optlen) #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags) #define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \ sendto(sockfd, (const void *)buf, len, flags, destaddr, addrlen) #else #define qemu_getsockopt(sockfd, level, optname, optval, optlen) \ getsockopt(sockfd, level, optname, optval, optlen) #define qemu_setsockopt(sockfd, level, optname, optval, optlen) \ setsockopt(sockfd, level, optname, optval, optlen) #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags) #define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \ sendto(sockfd, buf, len, flags, destaddr, addrlen) #endif void cpu_exec_init_all(void); void cpu_exec_step_atomic(CPUState *cpu); /** * set_preferred_target_page_bits: * @bits: number of bits needed to represent an address within the page * * Set the preferred target page size (the actual target page * size may be smaller than any given CPU's preference). * Returns true on success, false on failure (which can only happen * if this is called after the system has already finalized its * choice of page size and the requested page size is smaller than that). */ bool set_preferred_target_page_bits(int bits); /** * finalize_target_page_bits: * Commit the final value set by set_preferred_target_page_bits. */ void finalize_target_page_bits(void); /** * Sends a (part of) iovec down a socket, yielding when the socket is full, or * Receives data into a (part of) iovec from a socket, * yielding when there is no data in the socket. * The same interface as qemu_sendv_recvv(), with added yielding. * XXX should mark these as coroutine_fn */ ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt, size_t offset, size_t bytes, bool do_send); #define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \ qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false) #define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \ qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true) /** * The same as above, but with just a single buffer */ ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send); #define qemu_co_recv(sockfd, buf, bytes) \ qemu_co_send_recv(sockfd, buf, bytes, false) #define qemu_co_send(sockfd, buf, bytes) \ qemu_co_send_recv(sockfd, buf, bytes, true) void qemu_progress_init(int enabled, float min_skip); void qemu_progress_end(void); void qemu_progress_print(float delta, int max); const char *qemu_get_vm_name(void); #define QEMU_FILE_TYPE_BIOS 0 #define QEMU_FILE_TYPE_KEYMAP 1 /** * qemu_find_file: * @type: QEMU_FILE_TYPE_BIOS (for BIOS, VGA BIOS) * or QEMU_FILE_TYPE_KEYMAP (for keymaps). * @name: Relative or absolute file name * * If @name exists on disk as an absolute path, or a path relative * to the current directory, then returns @name unchanged. * Otherwise searches for @name file in the data directories, either * configured at build time (DATADIR) or registered with the -L command * line option. * * The caller must use g_free() to free the returned data when it is * no longer required. * * Returns: a path that can access @name, or NULL if no matching file exists. */ char *qemu_find_file(int type, const char *name); /* OS specific functions */ void os_setup_early_signal_handling(void); char *os_find_datadir(void); int os_parse_cmd_args(int index, const char *optarg); /* * Hexdump a buffer to a file. An optional string prefix is added to every line */ void qemu_hexdump(FILE *fp, const char *prefix, const void *bufptr, size_t size); /* * helper to parse debug environment variables */ int parse_debug_env(const char *name, int max, int initial); const char *qemu_ether_ntoa(const MACAddr *mac); void page_size_init(void); /* returns non-zero if dump is in progress, otherwise zero is * returned. */ bool dump_in_progress(void); #endif