fcntl.h 3.3 KB

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  1. /*
  2. * This file is subject to the terms and conditions of the GNU General Public
  3. * License. See the file "COPYING" in the main directory of this archive
  4. * for more details.
  5. *
  6. * Copyright (C) 1995, 96, 97, 98, 99, 2003 Ralf Baechle
  7. */
  8. #ifndef _ASM_FCNTL_H
  9. #define _ASM_FCNTL_H
  10. /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
  11. located on an ext2 file system */
  12. #define O_ACCMODE 0x0003
  13. #define O_RDONLY 0x0000
  14. #define O_WRONLY 0x0001
  15. #define O_RDWR 0x0002
  16. #define O_APPEND 0x0008
  17. #define O_SYNC 0x0010
  18. #define O_NONBLOCK 0x0080
  19. #define O_CREAT 0x0100 /* not fcntl */
  20. #define O_TRUNC 0x0200 /* not fcntl */
  21. #define O_EXCL 0x0400 /* not fcntl */
  22. #define O_NOCTTY 0x0800 /* not fcntl */
  23. #define FASYNC 0x1000 /* fcntl, for BSD compatibility */
  24. #define O_LARGEFILE 0x2000 /* allow large file opens */
  25. #define O_DIRECT 0x8000 /* direct disk access hint */
  26. #define O_DIRECTORY 0x10000 /* must be a directory */
  27. #define O_NOFOLLOW 0x20000 /* don't follow links */
  28. #define O_NOATIME 0x40000
  29. #define O_NDELAY O_NONBLOCK
  30. #define F_DUPFD 0 /* dup */
  31. #define F_GETFD 1 /* get close_on_exec */
  32. #define F_SETFD 2 /* set/clear close_on_exec */
  33. #define F_GETFL 3 /* get file->f_flags */
  34. #define F_SETFL 4 /* set file->f_flags */
  35. #define F_GETLK 14
  36. #define F_SETLK 6
  37. #define F_SETLKW 7
  38. #define F_SETOWN 24 /* for sockets. */
  39. #define F_GETOWN 23 /* for sockets. */
  40. #define F_SETSIG 10 /* for sockets. */
  41. #define F_GETSIG 11 /* for sockets. */
  42. #ifndef __mips64
  43. #define F_GETLK64 33 /* using 'struct flock64' */
  44. #define F_SETLK64 34
  45. #define F_SETLKW64 35
  46. #endif
  47. /* for F_[GET|SET]FL */
  48. #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
  49. /* for posix fcntl() and lockf() */
  50. #define F_RDLCK 0
  51. #define F_WRLCK 1
  52. #define F_UNLCK 2
  53. /* for old implementation of bsd flock () */
  54. #define F_EXLCK 4 /* or 3 */
  55. #define F_SHLCK 8 /* or 4 */
  56. /* for leases */
  57. #define F_INPROGRESS 16
  58. /* operations for bsd flock(), also used by the kernel implementation */
  59. #define LOCK_SH 1 /* shared lock */
  60. #define LOCK_EX 2 /* exclusive lock */
  61. #define LOCK_NB 4 /* or'd with one of the above to prevent
  62. blocking */
  63. #define LOCK_UN 8 /* remove lock */
  64. #define LOCK_MAND 32 /* This is a mandatory flock */
  65. #define LOCK_READ 64 /* ... Which allows concurrent read operations */
  66. #define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
  67. #define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
  68. /*
  69. * The flavours of struct flock. "struct flock" is the ABI compliant
  70. * variant. Finally struct flock64 is the LFS variant of struct flock. As
  71. * a historic accident and inconsistence with the ABI definition it doesn't
  72. * contain all the same fields as struct flock.
  73. */
  74. #ifndef __mips64
  75. typedef struct flock {
  76. short l_type;
  77. short l_whence;
  78. __kernel_off_t l_start;
  79. __kernel_off_t l_len;
  80. long l_sysid;
  81. __kernel_pid_t l_pid;
  82. long pad[4];
  83. } flock_t;
  84. typedef struct flock64 {
  85. short l_type;
  86. short l_whence;
  87. loff_t l_start;
  88. loff_t l_len;
  89. pid_t l_pid;
  90. } flock64_t;
  91. #else /* 64-bit definitions */
  92. typedef struct flock {
  93. short l_type;
  94. short l_whence;
  95. __kernel_off_t l_start;
  96. __kernel_off_t l_len;
  97. __kernel_pid_t l_pid;
  98. } flock_t;
  99. #ifdef __KERNEL__
  100. #define flock64 flock
  101. #endif
  102. #endif
  103. #define F_LINUX_SPECIFIC_BASE 1024
  104. #endif /* _ASM_FCNTL_H */