1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _LINUX_POSIX_TYPES_H 3 #define _LINUX_POSIX_TYPES_H 4 5 #include <linux/stddef.h> 6 7 /* 8 * This allows for 1024 file descriptors: if NR_OPEN is ever grown 9 * beyond that you'll have to change this too. But 1024 fd's seem to be 10 * enough even for such "real" unices like OSF/1, so hopefully this is 11 * one limit that doesn't have to be changed [again]. 12 * 13 * Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in 14 * <sys/time.h> (and thus <linux/time.h>) - but this is a more logical 15 * place for them. Solved by having dummy defines in <sys/time.h>. 16 */ 17 18 /* 19 * This macro may have been defined in <gnu/types.h>. But we always 20 * use the one here. 21 */ 22 #undef __FD_SETSIZE 23 #define __FD_SETSIZE 1024 24 25 typedef struct { 26 unsigned long fds_bits[__FD_SETSIZE / (8 * sizeof(long))]; 27 } __kernel_fd_set; 28 29 /* Type of a signal handler. */ 30 typedef void (*__kernel_sighandler_t)(int); 31 32 /* Type of a SYSV IPC key. */ 33 typedef int __kernel_key_t; 34 typedef int __kernel_mqd_t; 35 36 #include <asm/posix_types.h> 37 38 #endif /* _LINUX_POSIX_TYPES_H */ 39