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Comparing libeio/eio.h (file contents):
Revision 1.55 by root, Sat Jun 13 00:06:13 2015 UTC vs.
Revision 1.60 by root, Fri Jun 23 23:50:25 2017 UTC

1/* 1/*
2 * libeio API header 2 * libeio API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2015 Marc Alexander Lehmann <libeio@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2015,2016 Marc Alexander Lehmann <libeio@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
172{ 172{
173 /* these MUST match the value in linux/falloc.h */ 173 /* these MUST match the value in linux/falloc.h */
174 EIO_FALLOC_FL_KEEP_SIZE = 0x01, 174 EIO_FALLOC_FL_KEEP_SIZE = 0x01,
175 EIO_FALLOC_FL_PUNCH_HOLE = 0x02, 175 EIO_FALLOC_FL_PUNCH_HOLE = 0x02,
176 EIO_FALLOC_FL_COLLAPSE_RANGE = 0x08, 176 EIO_FALLOC_FL_COLLAPSE_RANGE = 0x08,
177 EIO_FALLOC_FL_ZERO_RANGE = 0x10 177 EIO_FALLOC_FL_ZERO_RANGE = 0x10,
178 EIO_FALLOC_FL_INSERT_RANGE = 0x20,
179 EIO_FALLOC_FL_UNSHARE_RANGE = 0x40
180};
181
182/* eio_rename flags */
183enum
184{
185 /* these MUST match the value in linux/fs.h */
186 EIO_RENAME_NOREPLACE = 1 << 0,
187 EIO_RENAME_EXCHANGE = 1 << 1,
188 EIO_RENAME_WHITEOUT = 1 << 2
178}; 189};
179 190
180/* timestamps and differences - feel free to use double in your code directly */ 191/* timestamps and differences - feel free to use double in your code directly */
181typedef double eio_tstamp; 192typedef double eio_tstamp;
182 193
… …
185{ 196{
186 EIO_CUSTOM, 197 EIO_CUSTOM,
187 EIO_WD_OPEN, EIO_WD_CLOSE, 198 EIO_WD_OPEN, EIO_WD_CLOSE,
188 199
189 EIO_CLOSE, EIO_DUP2, 200 EIO_CLOSE, EIO_DUP2,
190 EIO_SEEK, EIO_READ, EIO_WRITE, 201 EIO_SEEK, EIO_READ, EIO_WRITE, EIO_FCNTL, EIO_IOCTL,
191 EIO_READAHEAD, EIO_SENDFILE, 202 EIO_READAHEAD, EIO_SENDFILE,
192 EIO_FSTAT, EIO_FSTATVFS, 203 EIO_FSTAT, EIO_FSTATVFS,
193 EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN, 204 EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN,
194 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS, 205 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS,
195 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, 206 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE,
… …
251 eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */ 262 eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */
252 263
253 eio_ssize_t result; /* result of syscall, e.g. result = read (... */ 264 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
254 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ 265 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
255 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ 266 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
256 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ 267 void *ptr1; /* all applicable requests: pathname, old name, readdir: optional eio_dirents */
257 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ 268 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
258 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 269 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
259 eio_tstamp nv2; /* utime, futime: mtime */ 270 eio_tstamp nv2; /* utime, futime: mtime */
260 271
261 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ 272 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
262 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, seek: whence, sync_file_range, fallocate: flags */ 273 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, seek: whence, fcntl, ioctl: request, sync_file_range, fallocate, rename: flags */
263 long int3; /* chown, fchown: gid; rename, link: working directory of new name */ 274 long int3; /* chown, fchown: gid; rename, link: working directory of new name */
264 int errorno; /* errno value on syscall return */ 275 int errorno; /* errno value on syscall return */
265 276
266 unsigned char flags; /* private */ 277 unsigned char flags; /* private */
267 278
… …
285 296
286/* _private_ request flags */ 297/* _private_ request flags */
287enum { 298enum {
288 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ 299 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */
289 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ 300 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */
290 EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */
291}; 301};
292 302
293/* undocumented/unsupported/private helper */ 303/* undocumented/unsupported/private helper */
294/*void eio_page_align (void **addr, size_t *length);*/ 304/*void eio_page_align (void **addr, size_t *length);*/
295 305
… …
322unsigned int eio_npending (void); /* number of finished but unhandled requests */ 332unsigned int eio_npending (void); /* number of finished but unhandled requests */
323unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 333unsigned int eio_nthreads (void); /* number of worker threads in use currently */
324 334
325/*****************************************************************************/ 335/*****************************************************************************/
326/* convenience wrappers */ 336/* convenience wrappers */
337/* these do not expose advanced syscalls and directory fds */
327 338
328#ifndef EIO_NO_WRAPPERS 339#ifndef EIO_NO_WRAPPERS
329eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data); /* result=wd */ 340eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data); /* result=wd */
330eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data); 341eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data);
331eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ 342eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */
… …
343eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 354eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
344eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 355eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
345eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data); 356eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data);
346eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 357eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
347eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 358eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
359eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data);
360eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data);
348eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 361eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
349eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 362eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
350eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 363eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
351eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 364eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
352eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 365eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);

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