1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_SENDFILE_H 28*0Sstevel@tonic-gate #define _SYS_SENDFILE_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/feature_tests.h> 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #ifdef __cplusplus 35*0Sstevel@tonic-gate extern "C" { 36*0Sstevel@tonic-gate #endif 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #include <sys/types.h> 39*0Sstevel@tonic-gate #include <sys/uio.h> 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate /* 42*0Sstevel@tonic-gate * Structure used by sendfilev() 43*0Sstevel@tonic-gate */ 44*0Sstevel@tonic-gate typedef struct sendfilevec { 45*0Sstevel@tonic-gate int sfv_fd; 46*0Sstevel@tonic-gate uint_t sfv_flag; 47*0Sstevel@tonic-gate off_t sfv_off; 48*0Sstevel@tonic-gate size_t sfv_len; 49*0Sstevel@tonic-gate } sendfilevec_t; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate #define SFV_NOWAIT 1 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate #if defined(_LARGEFILE64_SOURCE) 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * For 32-bit apps accessing largefile offsets 56*0Sstevel@tonic-gate * using sendfilev64. 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate typedef struct sendfilevec64 { 59*0Sstevel@tonic-gate int sfv_fd; 60*0Sstevel@tonic-gate uint_t sfv_flag; 61*0Sstevel@tonic-gate off64_t sfv_off; 62*0Sstevel@tonic-gate size_t sfv_len; 63*0Sstevel@tonic-gate } sendfilevec64_t; 64*0Sstevel@tonic-gate #endif /* _LARGEFILE64_SOURCE */ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate #if defined(_SYSCALL32) 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * For 32-bit app on a 64-bit kernel to copyin the data. 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate typedef struct ksendfilevec32 { 71*0Sstevel@tonic-gate int sfv_fd; 72*0Sstevel@tonic-gate uint_t sfv_flag; 73*0Sstevel@tonic-gate off32_t sfv_off; 74*0Sstevel@tonic-gate size32_t sfv_len; 75*0Sstevel@tonic-gate } ksendfilevec32_t; 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate /* 78*0Sstevel@tonic-gate * For 32-bit app on a 64-bit kernel in largefile environment 79*0Sstevel@tonic-gate * (sendfilev64) to copyin data. Use pack(4) on amd64 kernel 80*0Sstevel@tonic-gate * to make sizeof(ksendfilevec64_t) == sizeof(sendfilevec64_t). 81*0Sstevel@tonic-gate */ 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 84*0Sstevel@tonic-gate #pragma pack(4) 85*0Sstevel@tonic-gate #endif 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate typedef struct ksendfilevec64 { 88*0Sstevel@tonic-gate int sfv_fd; 89*0Sstevel@tonic-gate uint_t sfv_flag; 90*0Sstevel@tonic-gate off64_t sfv_off; 91*0Sstevel@tonic-gate size32_t sfv_len; 92*0Sstevel@tonic-gate } ksendfilevec64_t; 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 95*0Sstevel@tonic-gate #pragma pack() 96*0Sstevel@tonic-gate #endif 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate /* The sfv_fd can be a file descriptor or self proc */ 102*0Sstevel@tonic-gate #define SFV_FD_SELF (-2) 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate /* System call subcodes */ 105*0Sstevel@tonic-gate #define SENDFILEV 0 106*0Sstevel@tonic-gate #define SENDFILEV64 1 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate #ifndef _KERNEL 109*0Sstevel@tonic-gate /* large file compilation environment setup */ 110*0Sstevel@tonic-gate #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 111*0Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME 112*0Sstevel@tonic-gate #pragma redefine_extname sendfilev sendfilev64 113*0Sstevel@tonic-gate #pragma redefine_extname sendfile sendfile64 114*0Sstevel@tonic-gate #else /* __PRAGMA_REDEFINE_EXTNAME */ 115*0Sstevel@tonic-gate #define sendfilev sendfilev64 116*0Sstevel@tonic-gate #define sendfile sendfile64 117*0Sstevel@tonic-gate #endif /* __PRAGMA_REDEFINE_EXTNAME */ 118*0Sstevel@tonic-gate #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */ 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate /* In the LP64 compilation environment, the APIs are already large file */ 121*0Sstevel@tonic-gate #if defined(_LP64) && defined(_LARGEFILE64_SOURCE) 122*0Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME 123*0Sstevel@tonic-gate #pragma redefine_extname sendfilev64 sendfilev 124*0Sstevel@tonic-gate #pragma redefine_extname sendfile64 sendfile 125*0Sstevel@tonic-gate #else /* __PRAGMA_REDEFINE_EXTNAME */ 126*0Sstevel@tonic-gate #define sendfilev64 sendfilev 127*0Sstevel@tonic-gate #define sendfile64 sendfile 128*0Sstevel@tonic-gate #endif /* __PRAGMA_REDEFINE_EXTNAME */ 129*0Sstevel@tonic-gate #endif /* _LP64 && _LARGEFILE64_SOURCE */ 130*0Sstevel@tonic-gate 131*0Sstevel@tonic-gate #ifdef __STDC__ 132*0Sstevel@tonic-gate extern ssize_t sendfilev(int, const struct sendfilevec *, int, size_t *); 133*0Sstevel@tonic-gate extern ssize_t sendfile(int, int, off_t *, size_t); 134*0Sstevel@tonic-gate /* Transitional largefile interface */ 135*0Sstevel@tonic-gate #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \ 136*0Sstevel@tonic-gate !defined(__PRAGMA_REDEFINE_EXTNAME)) 137*0Sstevel@tonic-gate extern ssize_t sendfilev64(int, const struct sendfilevec64 *, int, size_t *); 138*0Sstevel@tonic-gate extern ssize_t sendfile64(int, int, off64_t *, size_t); 139*0Sstevel@tonic-gate #endif 140*0Sstevel@tonic-gate #else /* __STDC__ */ 141*0Sstevel@tonic-gate extern int sendfilev(); 142*0Sstevel@tonic-gate extern int sendfile(); 143*0Sstevel@tonic-gate #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \ 144*0Sstevel@tonic-gate !defined(__PRAGMA_REDEFINE_EXTNAME)) 145*0Sstevel@tonic-gate extern int sendfilev64(); 146*0Sstevel@tonic-gate extern int sendfile64(); 147*0Sstevel@tonic-gate #endif 148*0Sstevel@tonic-gate #endif /* __STDC__ */ 149*0Sstevel@tonic-gate #endif /* _KERNEL */ 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate #ifdef __cplusplus 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate #endif 154*0Sstevel@tonic-gate 155*0Sstevel@tonic-gate #endif /* _SYS_SENDFILE_H */ 156