1 | /* |
1 | /* |
2 | * libeio API header |
2 | * libeio API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 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 | * |
… | |
… | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
44 | extern "C" { |
44 | extern "C" { |
45 | #endif |
45 | #endif |
46 | |
46 | |
47 | #include <stddef.h> |
47 | #include <stddef.h> |
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48 | #include <signal.h> |
48 | #include <sys/types.h> |
49 | #include <sys/types.h> |
49 | |
50 | |
50 | typedef struct eio_req eio_req; |
51 | typedef struct eio_req eio_req; |
51 | typedef struct eio_dirent eio_dirent; |
52 | typedef struct eio_dirent eio_dirent; |
52 | |
53 | |
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… | |
55 | #ifndef EIO_REQ_MEMBERS |
56 | #ifndef EIO_REQ_MEMBERS |
56 | # define EIO_REQ_MEMBERS |
57 | # define EIO_REQ_MEMBERS |
57 | #endif |
58 | #endif |
58 | |
59 | |
59 | #ifndef EIO_STRUCT_STAT |
60 | #ifndef EIO_STRUCT_STAT |
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61 | # ifdef _WIN32 |
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62 | # define EIO_STRUCT_STAT struct _stati64 |
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63 | # define EIO_STRUCT_STATI64 |
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64 | # else |
60 | # define EIO_STRUCT_STAT struct stat |
65 | # define EIO_STRUCT_STAT struct stat |
61 | #endif |
66 | # endif |
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67 | #endif |
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68 | |
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69 | #ifdef _WIN32 |
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70 | typedef int eio_uid_t; |
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71 | typedef int eio_gid_t; |
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72 | #ifdef __MINGW32__ /* no intptr_t */ |
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73 | typedef ssize_t eio_ssize_t; |
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74 | #else |
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75 | typedef intptr_t eio_ssize_t; /* or SSIZE_T */ |
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76 | #endif |
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77 | #if __GNUC__ |
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78 | typedef long long eio_ino_t; /* signed for compatibility to msvc */ |
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79 | #else |
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80 | typedef __int64 eio_ino_t; /* unsigned not supported by msvc */ |
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81 | #endif |
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82 | #else |
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83 | typedef uid_t eio_uid_t; |
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84 | typedef gid_t eio_gid_t; |
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85 | typedef ssize_t eio_ssize_t; |
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86 | typedef ino_t eio_ino_t; |
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87 | #endif |
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88 | |
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89 | #ifndef EIO_STRUCT_STATVFS |
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90 | # define EIO_STRUCT_STATVFS struct statvfs |
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91 | #endif |
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92 | |
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93 | /* managing working directories */ |
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94 | |
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95 | typedef void *eio_wd; |
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96 | |
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97 | #define EIO_CWD 0 /* the current working directory of the process, guaranteed to be a null pointer */ |
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98 | #define EIO_INVALID_WD ((eio_wd)(int)-1) /* failure return for eio_wd_open */ |
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99 | |
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100 | eio_wd eio_wd_open_sync (eio_wd wd, const char *path); |
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101 | void eio_wd_close_sync (eio_wd wd); |
62 | |
102 | |
63 | /* for readdir */ |
103 | /* for readdir */ |
64 | |
104 | |
65 | /* eio_readdir flags */ |
105 | /* eio_readdir flags */ |
66 | enum { |
106 | enum |
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107 | { |
67 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
108 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
68 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
109 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
69 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
110 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
70 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
111 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
71 | |
112 | |
72 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
113 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
73 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
114 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
74 | }; |
115 | }; |
75 | |
116 | |
76 | /* using "typical" values in the hope that the compiler will do something sensible */ |
117 | /* using "typical" values in the hope that the compiler will do something sensible */ |
77 | enum eio_dtype { |
118 | enum eio_dtype |
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119 | { |
78 | EIO_DT_UNKNOWN = 0, |
120 | EIO_DT_UNKNOWN = 0, |
79 | EIO_DT_FIFO = 1, |
121 | EIO_DT_FIFO = 1, |
80 | EIO_DT_CHR = 2, |
122 | EIO_DT_CHR = 2, |
81 | EIO_DT_MPC = 3, /* multiplexed char device (v7+Coherent) */ |
123 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
82 | EIO_DT_DIR = 4, |
124 | EIO_DT_DIR = 4, |
83 | EIO_DT_NAM = 5, /* xenix special named file */ |
125 | EIO_DT_NAM = 5, /* xenix special named file */ |
84 | EIO_DT_BLK = 6, |
126 | EIO_DT_BLK = 6, |
85 | EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */ |
127 | EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */ |
86 | EIO_DT_REG = 8, |
128 | EIO_DT_REG = 8, |
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89 | EIO_DT_LNK = 10, |
131 | EIO_DT_LNK = 10, |
90 | /* DT_SHAD = 11,*/ |
132 | /* DT_SHAD = 11,*/ |
91 | EIO_DT_SOCK = 12, |
133 | EIO_DT_SOCK = 12, |
92 | EIO_DT_DOOR = 13, /* solaris door */ |
134 | EIO_DT_DOOR = 13, /* solaris door */ |
93 | EIO_DT_WHT = 14, |
135 | EIO_DT_WHT = 14, |
94 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
136 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
95 | }; |
137 | }; |
96 | |
138 | |
97 | struct eio_dirent { |
139 | struct eio_dirent |
98 | char *name; |
140 | { |
99 | ino_t inode; |
141 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
100 | unsigned short namelen; |
142 | unsigned short namelen; /* size of filename without trailing 0 */ |
101 | unsigned char type; |
143 | unsigned char type; /* one of EIO_DT_* */ |
102 | unsigned char score; /* internal use */ |
144 | signed char score; /* internal use */ |
103 | /* 0-4 bytes padding */ |
145 | eio_ino_t inode; /* the inode number, if available, otherwise unspecified */ |
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146 | }; |
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147 | |
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148 | /* eio_msync flags */ |
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149 | enum |
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150 | { |
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151 | EIO_MS_ASYNC = 1, |
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152 | EIO_MS_INVALIDATE = 2, |
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153 | EIO_MS_SYNC = 4 |
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154 | }; |
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155 | |
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156 | /* eio_mtouch flags */ |
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157 | enum |
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158 | { |
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159 | EIO_MT_MODIFY = 1 |
104 | }; |
160 | }; |
105 | |
161 | |
106 | /* eio_sync_file_range flags */ |
162 | /* eio_sync_file_range flags */ |
107 | |
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108 | enum { |
163 | enum |
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164 | { |
109 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
165 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
110 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
166 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
111 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
167 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
112 | }; |
168 | }; |
113 | |
169 | |
114 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
170 | /* eio_fallocate flags */ |
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171 | enum |
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172 | { |
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173 | EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */ |
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174 | }; |
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175 | |
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176 | /* timestamps and differences - feel free to use double in your code directly */ |
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177 | typedef double eio_tstamp; |
115 | |
178 | |
116 | /* the eio request structure */ |
179 | /* the eio request structure */ |
117 | |
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118 | enum { |
180 | enum |
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181 | { |
119 | EIO_CUSTOM, |
182 | EIO_CUSTOM, |
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183 | EIO_WD_OPEN, EIO_WD_CLOSE, |
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184 | |
120 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
185 | EIO_CLOSE, EIO_DUP2, |
121 | EIO_READ, EIO_WRITE, |
186 | EIO_READ, EIO_WRITE, |
122 | EIO_READAHEAD, EIO_SENDFILE, |
187 | EIO_READAHEAD, EIO_SENDFILE, |
123 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
188 | EIO_FSTAT, EIO_FSTATVFS, |
124 | EIO_TRUNCATE, EIO_FTRUNCATE, |
189 | EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN, |
125 | EIO_UTIME, EIO_FUTIME, |
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126 | EIO_CHMOD, EIO_FCHMOD, |
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127 | EIO_CHOWN, EIO_FCHOWN, |
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128 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
190 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS, |
129 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
191 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
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192 | EIO_MLOCK, EIO_MLOCKALL, |
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193 | EIO_GROUP, EIO_NOP, |
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194 | EIO_BUSY, |
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195 | |
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196 | /* these use wd + ptr1, but are emulated */ |
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197 | EIO_REALPATH, |
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198 | EIO_STATVFS, |
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199 | EIO_READDIR, |
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200 | |
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201 | /* all the following requests use wd + ptr1 as path in xxxat functions */ |
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202 | EIO_OPEN, |
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203 | EIO_STAT, EIO_LSTAT, |
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204 | EIO_TRUNCATE, |
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205 | EIO_UTIME, |
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206 | EIO_CHMOD, |
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207 | EIO_CHOWN, |
130 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
208 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
131 | EIO_MKNOD, EIO_READDIR, |
209 | EIO_MKNOD, |
132 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
210 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
133 | EIO_GROUP, EIO_NOP, |
211 | |
134 | EIO_BUSY |
212 | EIO_REQ_TYPE_NUM |
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213 | }; |
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214 | |
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215 | /* mlockall constants */ |
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216 | enum |
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217 | { |
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218 | EIO_MCL_CURRENT = 1, |
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219 | EIO_MCL_FUTURE = 2, |
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220 | }; |
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221 | |
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222 | /* request priorities */ |
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223 | |
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224 | enum { |
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225 | EIO_PRI_MIN = -4, |
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226 | EIO_PRI_MAX = 4, |
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227 | EIO_PRI_DEFAULT = 0, |
135 | }; |
228 | }; |
136 | |
229 | |
137 | /* eio request structure */ |
230 | /* eio request structure */ |
138 | /* this structure is mostly read-only */ |
231 | /* this structure is mostly read-only */ |
139 | /* when initialising it, all members must be zero-initialised */ |
232 | /* when initialising it, all members must be zero-initialised */ |
140 | struct eio_req |
233 | struct eio_req |
141 | { |
234 | { |
142 | eio_req volatile *next; /* private ETP */ |
235 | eio_req volatile *next; /* private ETP */ |
143 | |
236 | |
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237 | eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */ |
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238 | |
144 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
239 | eio_ssize_t result; /* result of syscall, e.g. result = read (... */ |
145 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ |
240 | off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ |
146 | size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ |
241 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ |
147 | void *ptr1; /* all applicable requests: pathname, old name; readdir: possible output memory buffer */ |
242 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
148 | void *ptr2; /* all applicable requests: new name or memory buffer */ |
243 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
149 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
244 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
150 | eio_tstamp nv2; /* utime, futime: mtime */ |
245 | eio_tstamp nv2; /* utime, futime: mtime */ |
151 | |
246 | |
152 | int type; /* EIO_xxx constant ETP */ |
247 | int type; /* EIO_xxx constant ETP */ |
153 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ |
248 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
154 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
249 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */ |
155 | long int3; /* chown, fchown: gid; mknod: dev_t */ |
250 | long int3; /* chown, fchown: gid; rename, link: working directory of new name */ |
156 | int errorno; /* errno value on syscall return */ |
251 | int errorno; /* errno value on syscall return */ |
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252 | |
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253 | #if __i386 || __amd64 |
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254 | unsigned char cancelled; |
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255 | #else |
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256 | sig_atomic_t cancelled; |
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257 | #endif |
157 | |
258 | |
158 | unsigned char flags; /* private */ |
259 | unsigned char flags; /* private */ |
159 | signed char pri; /* the priority */ |
260 | signed char pri; /* the priority */ |
160 | |
261 | |
161 | void *data; |
262 | void *data; |
162 | eio_cb finish; |
263 | eio_cb finish; |
163 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
264 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
164 | void (*feed)(eio_req *req); /* only used for group requests */ |
265 | void (*feed)(eio_req *req); /* only used for group requests */ |
165 | |
266 | |
166 | EIO_REQ_MEMBERS |
267 | EIO_REQ_MEMBERS |
167 | |
268 | |
168 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
269 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
169 | }; |
270 | }; |
170 | |
271 | |
171 | /* _private_ flags */ |
272 | /* _private_ request flags */ |
172 | enum { |
273 | enum { |
173 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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174 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
274 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
175 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
275 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
176 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
276 | EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */ |
177 | }; |
277 | }; |
178 | |
278 | |
179 | enum { |
279 | /* undocumented/unsupported/private helper */ |
180 | EIO_PRI_MIN = -4, |
280 | /*void eio_page_align (void **addr, size_t *length);*/ |
181 | EIO_PRI_MAX = 4, |
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182 | EIO_PRI_DEFAULT = 0, |
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183 | }; |
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184 | |
281 | |
185 | /* returns < 0 on error, errno set |
282 | /* returns < 0 on error, errno set |
186 | * need_poll, if non-zero, will be called when results are available |
283 | * need_poll, if non-zero, will be called when results are available |
187 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
284 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
188 | * done_poll is called when the need to poll is gone. |
285 | * done_poll is called when the need to poll is gone. |
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202 | * maximum wanted number |
299 | * maximum wanted number |
203 | * or maximum idle number of threads */ |
300 | * or maximum idle number of threads */ |
204 | void eio_set_min_parallel (unsigned int nthreads); |
301 | void eio_set_min_parallel (unsigned int nthreads); |
205 | void eio_set_max_parallel (unsigned int nthreads); |
302 | void eio_set_max_parallel (unsigned int nthreads); |
206 | void eio_set_max_idle (unsigned int nthreads); |
303 | void eio_set_max_idle (unsigned int nthreads); |
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304 | void eio_set_idle_timeout (unsigned int seconds); |
207 | |
305 | |
208 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
306 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
209 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
307 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
210 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
308 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
211 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
309 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
212 | |
310 | |
213 | /*****************************************************************************/ |
311 | /*****************************************************************************/ |
214 | /* convinience wrappers */ |
312 | /* convenience wrappers */ |
215 | |
313 | |
216 | #ifndef EIO_NO_WRAPPERS |
314 | #ifndef EIO_NO_WRAPPERS |
217 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
315 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
218 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
316 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
219 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
317 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
220 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
318 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
221 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
319 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
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320 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data); |
222 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
321 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
223 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
322 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
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323 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
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324 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
224 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
325 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
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326 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
225 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
327 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
226 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
328 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
227 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
329 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
228 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
330 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
229 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
331 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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332 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
230 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
333 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
231 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
334 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
232 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
335 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
233 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
336 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
234 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
337 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
235 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
338 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
236 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
339 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
237 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
340 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
238 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
341 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
239 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
342 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
240 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
343 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
241 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
344 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
242 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
345 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
243 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
346 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
244 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
347 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
245 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
348 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
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349 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
246 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
350 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
247 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
351 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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352 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
248 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
353 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
249 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
354 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
250 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
355 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
251 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
356 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
252 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
357 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
253 | #endif |
358 | #endif |
254 | |
359 | |
255 | /*****************************************************************************/ |
360 | /*****************************************************************************/ |
256 | /* groups */ |
361 | /* groups */ |
257 | |
362 | |
… | |
… | |
263 | |
368 | |
264 | /*****************************************************************************/ |
369 | /*****************************************************************************/ |
265 | /* request api */ |
370 | /* request api */ |
266 | |
371 | |
267 | /* true if the request was cancelled, useful in the invoke callback */ |
372 | /* true if the request was cancelled, useful in the invoke callback */ |
268 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
373 | #define EIO_CANCELLED(req) ((req)->cancelled) |
269 | |
374 | |
270 | #define EIO_RESULT(req) ((req)->result) |
375 | #define EIO_RESULT(req) ((req)->result) |
271 | /* returns a pointer to the result buffer allocated by eio */ |
376 | /* returns a pointer to the result buffer allocated by eio */ |
272 | #define EIO_BUF(req) ((req)->ptr2) |
377 | #define EIO_BUF(req) ((req)->ptr2) |
273 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
378 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
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379 | #define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req)) |
274 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
380 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
275 | |
381 | |
276 | /* submit a request for execution */ |
382 | /* submit a request for execution */ |
277 | void eio_submit (eio_req *req); |
383 | void eio_submit (eio_req *req); |
278 | /* cancel a request as soon fast as possible, if possible */ |
384 | /* cancel a request as soon fast as possible, if possible */ |
279 | void eio_cancel (eio_req *req); |
385 | void eio_cancel (eio_req *req); |
280 | /* destroy a request that has never been submitted */ |
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281 | void eio_destroy (eio_req *req); |
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282 | |
386 | |
283 | /*****************************************************************************/ |
387 | /*****************************************************************************/ |
284 | /* convinience functions */ |
388 | /* convenience functions */ |
285 | |
389 | |
286 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
390 | eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
287 | |
391 | |
288 | #ifdef __cplusplus |
392 | #ifdef __cplusplus |
289 | } |
393 | } |
290 | #endif |
394 | #endif |
291 | |
395 | |