1 | /* solaris */ |
1 | #include "libeio/xthread.h" |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
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9 | #define _REENTRANT 1 |
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10 | |
2 | |
11 | #include <errno.h> |
3 | #include <errno.h> |
12 | |
4 | |
13 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
14 | #include "perl.h" |
6 | #include "perl.h" |
15 | #include "XSUB.h" |
7 | #include "XSUB.h" |
16 | |
8 | |
17 | #include "autoconf/config.h" |
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18 | |
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19 | #include <pthread.h> |
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20 | |
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21 | #include <stddef.h> |
9 | #include <stddef.h> |
22 | #include <stdlib.h> |
10 | #include <stdlib.h> |
23 | #include <errno.h> |
11 | #include <errno.h> |
24 | #include <sys/time.h> |
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25 | #include <sys/select.h> |
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26 | #include <sys/types.h> |
12 | #include <sys/types.h> |
27 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
28 | #include <limits.h> |
14 | #include <limits.h> |
29 | #include <unistd.h> |
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30 | #include <fcntl.h> |
15 | #include <fcntl.h> |
31 | #include <signal.h> |
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32 | #include <sched.h> |
16 | #include <sched.h> |
33 | |
17 | |
34 | #if HAVE_SENDFILE |
18 | /* perl namespace pollution */ |
35 | # if __linux |
19 | #undef VERSION |
36 | # include <sys/sendfile.h> |
20 | |
37 | # elif __freebsd |
21 | #ifdef _WIN32 |
38 | # include <sys/socket.h> |
22 | |
39 | # include <sys/uio.h> |
23 | # define EIO_STRUCT_DIRENT Direntry_t |
40 | # elif __hpux |
24 | # undef malloc |
41 | # include <sys/socket.h> |
25 | # undef free |
42 | # elif __solaris /* not yet */ |
26 | |
43 | # include <sys/sendfile.h> |
27 | // perl overrides all those nice win32 functions |
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28 | # undef open |
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29 | # undef read |
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30 | # undef write |
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31 | # undef send |
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32 | # undef recv |
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33 | # undef stat |
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34 | # undef fstat |
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35 | # define lstat stat |
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36 | # undef truncate |
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37 | # undef ftruncate |
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38 | # undef open |
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39 | # undef close |
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40 | # undef unlink |
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41 | # undef rmdir |
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42 | # undef rename |
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43 | # undef lseek |
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44 | |
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45 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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46 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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47 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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48 | # define symlink(a,b) (errno = ENOSYS, -1) |
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49 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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50 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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51 | # define truncate(a,b) (errno = ENOSYS, -1) |
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52 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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53 | # define fsync(fd) _commit (fd) |
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54 | # define opendir(fd) (errno = ENOSYS, 0) |
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55 | # define readdir(fd) (errno = ENOSYS, -1) |
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56 | # define closedir(fd) (errno = ENOSYS, -1) |
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57 | # define mkdir(a,b) mkdir (a) |
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58 | |
44 | # else |
59 | #else |
45 | # error sendfile support requested but not available |
60 | |
46 | # endif |
61 | # include <sys/time.h> |
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62 | # include <sys/select.h> |
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63 | # include <unistd.h> |
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64 | # include <utime.h> |
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65 | # include <signal.h> |
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66 | # define EIO_STRUCT_DIRENT struct dirent |
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67 | |
47 | #endif |
68 | #endif |
48 | |
69 | |
49 | /* number of seconds after which idle threads exit */ |
70 | /* perl stupidly overrides readdir and maybe others */ |
50 | #define IDLE_TIMEOUT 10 |
71 | /* with thread-unsafe versions, imagine that :( */ |
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72 | #undef readdir |
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73 | #undef opendir |
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74 | #undef closedir |
51 | |
75 | |
52 | /* used for struct dirent, AIX doesn't provide it */ |
76 | #define EIO_STRUCT_STAT Stat_t |
53 | #ifndef NAME_MAX |
77 | |
54 | # define NAME_MAX 4096 |
78 | /* use NV for 32 bit perls as it allows larger offsets */ |
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79 | #if IVSIZE >= 8 |
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80 | # define SvVAL64 SvIV |
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81 | #else |
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82 | # define SvVAL64 SvNV |
55 | #endif |
83 | #endif |
56 | |
84 | |
57 | #ifndef PTHREAD_STACK_MIN |
85 | /*****************************************************************************/ |
58 | /* care for broken platforms, e.g. windows */ |
86 | |
59 | # define PTHREAD_STACK_MIN 16384 |
87 | #if __GNUC__ >= 3 |
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88 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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89 | #else |
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90 | # define expect(expr,value) (expr) |
60 | #endif |
91 | #endif |
61 | |
92 | |
62 | #if __ia64 |
93 | #define expect_false(expr) expect ((expr) != 0, 0) |
63 | # define STACKSIZE 65536 |
94 | #define expect_true(expr) expect ((expr) != 0, 1) |
64 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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65 | # define STACKSIZE PTHREAD_STACK_MIN |
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66 | #else |
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67 | # define STACKSIZE 16384 |
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68 | #endif |
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69 | |
95 | |
70 | /* wether word reads are potentially non-atomic. |
96 | /*****************************************************************************/ |
71 | * this is conservatice, likely most arches this runs |
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72 | * on have atomic word read/writes. |
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73 | */ |
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74 | #ifndef WORDACCESS_UNSAFE |
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75 | # if __i386 || __x86_64 |
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76 | # define WORDACCESS_UNSAFE 0 |
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77 | # else |
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78 | # define WORDACCESS_UNSAFE 1 |
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79 | # endif |
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80 | #endif |
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81 | |
97 | |
82 | /* buffer size for various temporary buffers */ |
98 | static HV *stash; |
83 | #define AIO_BUFSIZE 65536 |
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84 | |
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85 | #define dBUF \ |
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86 | char *aio_buf; \ |
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87 | LOCK (wrklock); \ |
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88 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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89 | UNLOCK (wrklock); \ |
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90 | if (!aio_buf) \ |
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91 | return -1; |
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92 | |
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93 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
99 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
94 | |
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95 | enum { |
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96 | REQ_QUIT, |
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97 | REQ_OPEN, REQ_CLOSE, |
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98 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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99 | REQ_SENDFILE, |
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100 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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101 | REQ_FSYNC, REQ_FDATASYNC, |
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102 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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103 | REQ_MKNOD, REQ_READDIR, |
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104 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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105 | REQ_GROUP, REQ_NOP, |
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106 | REQ_BUSY, |
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107 | }; |
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108 | |
100 | |
109 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
101 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
110 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
102 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
111 | |
103 | |
112 | typedef struct aio_cb |
104 | #define EIO_REQ_MEMBERS \ |
113 | { |
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114 | struct aio_cb *volatile next; |
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115 | |
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116 | SV *callback, *fh; |
105 | SV *callback; \ |
117 | SV *sv1, *sv2; |
106 | SV *sv1, *sv2; \ |
118 | void *ptr1, *ptr2; |
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119 | off_t offs; |
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120 | size_t size; |
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121 | ssize_t result; |
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122 | |
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123 | STRLEN stroffset; |
107 | STRLEN stroffset; \ |
124 | int type; |
108 | SV *self; |
125 | int int1, int2; |
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126 | int errorno; |
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127 | mode_t mode; /* open */ |
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128 | |
109 | |
129 | unsigned char flags; |
110 | #define EIO_NO_WRAPPERS 1 |
130 | unsigned char pri; |
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131 | |
111 | |
132 | SV *self; /* the perl counterpart of this request, if any */ |
112 | #include "libeio/eio.h" |
133 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
113 | |
134 | } aio_cb; |
114 | static int req_invoke (eio_req *req); |
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115 | #define EIO_FINISH(req) req_invoke (req) |
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116 | static void req_destroy (eio_req *grp); |
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117 | #define EIO_DESTROY(req) req_destroy (req) |
135 | |
118 | |
136 | enum { |
119 | enum { |
137 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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138 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
120 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
139 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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140 | }; |
121 | }; |
141 | |
122 | |
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123 | #include "libeio/eio.c" |
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124 | |
142 | typedef aio_cb *aio_req; |
125 | typedef eio_req *aio_req; |
143 | typedef aio_cb *aio_req_ornot; |
126 | typedef eio_req *aio_req_ornot; |
144 | |
127 | |
145 | enum { |
128 | static SV *on_next_submit; |
146 | PRI_MIN = -4, |
129 | static int next_pri = EIO_PRI_DEFAULT; |
147 | PRI_MAX = 4, |
130 | static int max_outstanding; |
148 | |
131 | |
149 | DEFAULT_PRI = 0, |
132 | static int respipe_osf [2], respipe [2] = { -1, -1 }; |
150 | PRI_BIAS = -PRI_MIN, |
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151 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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152 | }; |
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153 | |
133 | |
154 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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155 | |
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156 | static unsigned int max_poll_time = 0; |
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157 | static unsigned int max_poll_reqs = 0; |
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158 | |
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159 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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160 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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161 | { |
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162 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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163 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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164 | } |
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165 | |
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166 | static pthread_t main_tid; |
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167 | static int main_sig; |
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168 | static int block_sig_level; |
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169 | |
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170 | void block_sig () |
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171 | { |
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172 | sigset_t ss; |
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173 | |
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174 | if (block_sig_level++) |
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175 | return; |
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176 | |
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177 | if (!main_sig) |
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178 | return; |
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179 | |
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180 | sigemptyset (&ss); |
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181 | sigaddset (&ss, main_sig); |
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182 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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183 | } |
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184 | |
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185 | void unblock_sig () |
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186 | { |
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187 | sigset_t ss; |
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188 | |
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189 | if (--block_sig_level) |
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190 | return; |
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191 | |
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192 | if (!main_sig) |
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193 | return; |
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194 | |
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195 | sigemptyset (&ss); |
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196 | sigaddset (&ss, main_sig); |
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197 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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198 | } |
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199 | |
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200 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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201 | |
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202 | static unsigned int started, idle, wanted; |
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203 | |
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204 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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205 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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206 | #else |
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207 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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208 | #endif |
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209 | |
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210 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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211 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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212 | |
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213 | /* worker threads management */ |
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214 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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215 | |
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216 | typedef struct worker { |
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217 | /* locked by wrklock */ |
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218 | struct worker *prev, *next; |
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219 | |
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220 | pthread_t tid; |
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221 | |
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222 | /* locked by reslock, reqlock or wrklock */ |
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223 | aio_req req; /* currently processed request */ |
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224 | void *dbuf; |
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225 | DIR *dirp; |
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226 | } worker; |
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227 | |
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228 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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229 | |
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230 | static void worker_clear (worker *wrk) |
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231 | { |
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232 | if (wrk->dirp) |
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233 | { |
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234 | closedir (wrk->dirp); |
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235 | wrk->dirp = 0; |
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236 | } |
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237 | |
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238 | if (wrk->dbuf) |
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239 | { |
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240 | free (wrk->dbuf); |
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241 | wrk->dbuf = 0; |
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242 | } |
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243 | } |
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244 | |
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245 | static void worker_free (worker *wrk) |
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246 | { |
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247 | wrk->next->prev = wrk->prev; |
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248 | wrk->prev->next = wrk->next; |
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249 | |
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250 | free (wrk); |
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251 | } |
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252 | |
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253 | static volatile unsigned int nreqs, nready, npending; |
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254 | static volatile unsigned int max_idle = 4; |
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255 | static volatile unsigned int max_outstanding = 0xffffffff; |
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256 | static int respipe [2]; |
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257 | |
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258 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
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259 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
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260 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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261 | |
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262 | #if WORDACCESS_UNSAFE |
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263 | |
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264 | static unsigned int get_nready () |
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265 | { |
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266 | unsigned int retval; |
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267 | |
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268 | LOCK (reqlock); |
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269 | retval = nready; |
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270 | UNLOCK (reqlock); |
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271 | |
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272 | return retval; |
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273 | } |
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274 | |
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275 | static unsigned int get_npending () |
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276 | { |
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277 | unsigned int retval; |
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278 | |
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279 | LOCK (reslock); |
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280 | retval = npending; |
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281 | UNLOCK (reslock); |
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282 | |
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283 | return retval; |
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284 | } |
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285 | |
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286 | static unsigned int get_nthreads () |
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287 | { |
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288 | unsigned int retval; |
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289 | |
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290 | LOCK (wrklock); |
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291 | retval = started; |
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292 | UNLOCK (wrklock); |
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293 | |
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294 | return retval; |
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295 | } |
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296 | |
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297 | #else |
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298 | |
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299 | # define get_nready() nready |
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300 | # define get_npending() npending |
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301 | # define get_nthreads() started |
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302 | |
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303 | #endif |
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304 | |
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305 | /* |
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306 | * a somewhat faster data structure might be nice, but |
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307 | * with 8 priorities this actually needs <20 insns |
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308 | * per shift, the most expensive operation. |
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309 | */ |
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310 | typedef struct { |
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311 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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312 | int size; |
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313 | } reqq; |
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314 | |
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315 | static reqq req_queue; |
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316 | static reqq res_queue; |
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317 | |
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318 | int reqq_push (reqq *q, aio_req req) |
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319 | { |
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320 | int pri = req->pri; |
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321 | req->next = 0; |
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322 | |
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323 | if (q->qe[pri]) |
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324 | { |
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325 | q->qe[pri]->next = req; |
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326 | q->qe[pri] = req; |
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327 | } |
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328 | else |
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329 | q->qe[pri] = q->qs[pri] = req; |
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330 | |
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331 | return q->size++; |
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332 | } |
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333 | |
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334 | aio_req reqq_shift (reqq *q) |
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335 | { |
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336 | int pri; |
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337 | |
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338 | if (!q->size) |
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339 | return 0; |
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340 | |
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341 | --q->size; |
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342 | |
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343 | for (pri = NUM_PRI; pri--; ) |
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344 | { |
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345 | aio_req req = q->qs[pri]; |
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346 | |
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347 | if (req) |
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348 | { |
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349 | if (!(q->qs[pri] = req->next)) |
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350 | q->qe[pri] = 0; |
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351 | |
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352 | return req; |
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353 | } |
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354 | } |
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355 | |
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356 | abort (); |
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357 | } |
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358 | |
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359 | static int poll_cb (); |
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360 | static int req_invoke (aio_req req); |
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361 | static void req_free (aio_req req); |
134 | static void req_destroy (aio_req req); |
362 | static void req_cancel (aio_req req); |
135 | static void req_cancel (aio_req req); |
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136 | |
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137 | static void want_poll (void) |
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138 | { |
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139 | /* write a dummy byte to the pipe so fh becomes ready */ |
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140 | respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
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141 | } |
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142 | |
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143 | static void done_poll (void) |
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144 | { |
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145 | /* read any signals sent by the worker threads */ |
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146 | char buf [4]; |
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147 | while (respipe_read (respipe [0], buf, 4) == 4) |
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148 | ; |
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149 | } |
363 | |
150 | |
364 | /* must be called at most once */ |
151 | /* must be called at most once */ |
365 | static SV *req_sv (aio_req req, const char *klass) |
152 | static SV *req_sv (aio_req req, const char *klass) |
366 | { |
153 | { |
367 | if (!req->self) |
154 | if (!req->self) |
… | |
… | |
385 | return mg ? (aio_req)mg->mg_ptr : 0; |
172 | return mg ? (aio_req)mg->mg_ptr : 0; |
386 | } |
173 | } |
387 | |
174 | |
388 | static void aio_grp_feed (aio_req grp) |
175 | static void aio_grp_feed (aio_req grp) |
389 | { |
176 | { |
390 | block_sig (); |
177 | if (grp->sv2 && SvOK (grp->sv2)) |
391 | |
|
|
392 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
|
|
393 | { |
178 | { |
394 | int old_len = grp->size; |
|
|
395 | |
|
|
396 | if (grp->sv2 && SvOK (grp->sv2)) |
|
|
397 | { |
|
|
398 | dSP; |
179 | dSP; |
399 | |
180 | |
400 | ENTER; |
181 | ENTER; |
401 | SAVETMPS; |
182 | SAVETMPS; |
402 | PUSHMARK (SP); |
183 | PUSHMARK (SP); |
403 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
184 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
404 | PUTBACK; |
185 | PUTBACK; |
405 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
186 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
406 | SPAGAIN; |
187 | SPAGAIN; |
407 | FREETMPS; |
188 | FREETMPS; |
408 | LEAVE; |
189 | LEAVE; |
409 | } |
|
|
410 | |
|
|
411 | /* stop if no progress has been made */ |
|
|
412 | if (old_len == grp->size) |
|
|
413 | { |
|
|
414 | SvREFCNT_dec (grp->sv2); |
|
|
415 | grp->sv2 = 0; |
|
|
416 | break; |
|
|
417 | } |
|
|
418 | } |
190 | } |
419 | |
|
|
420 | unblock_sig (); |
|
|
421 | } |
191 | } |
422 | |
192 | |
423 | static void aio_grp_dec (aio_req grp) |
193 | static void req_submit (eio_req *req) |
424 | { |
194 | { |
425 | --grp->size; |
195 | eio_submit (req); |
426 | |
196 | |
427 | /* call feeder, if applicable */ |
197 | if (expect_false (on_next_submit)) |
428 | aio_grp_feed (grp); |
|
|
429 | |
|
|
430 | /* finish, if done */ |
|
|
431 | if (!grp->size && grp->int1) |
|
|
432 | { |
198 | { |
433 | block_sig (); |
199 | dSP; |
|
|
200 | SV *cb = sv_2mortal (on_next_submit); |
434 | |
201 | |
435 | if (!req_invoke (grp)) |
202 | on_next_submit = 0; |
436 | { |
|
|
437 | req_free (grp); |
|
|
438 | unblock_sig (); |
|
|
439 | croak (0); |
|
|
440 | } |
|
|
441 | |
203 | |
442 | req_free (grp); |
204 | PUSHMARK (SP); |
443 | unblock_sig (); |
205 | PUTBACK; |
|
|
206 | call_sv (cb, G_DISCARD | G_EVAL); |
444 | } |
207 | } |
445 | } |
208 | } |
446 | |
209 | |
447 | static int req_invoke (aio_req req) |
210 | static int req_invoke (eio_req *req) |
448 | { |
211 | { |
449 | dSP; |
212 | dSP; |
450 | |
213 | |
451 | if (req->flags & FLAG_SV1_RO_OFF) |
214 | if (req->flags & FLAG_SV2_RO_OFF) |
452 | SvREADONLY_off (req->sv1); |
215 | SvREADONLY_off (req->sv2); |
453 | |
216 | |
454 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
217 | if (!EIO_CANCELLED (req) && req->callback) |
455 | { |
218 | { |
456 | ENTER; |
219 | ENTER; |
457 | SAVETMPS; |
220 | SAVETMPS; |
458 | PUSHMARK (SP); |
221 | PUSHMARK (SP); |
459 | EXTEND (SP, 1); |
222 | EXTEND (SP, 1); |
460 | |
223 | |
461 | switch (req->type) |
224 | switch (req->type) |
462 | { |
225 | { |
463 | case REQ_READDIR: |
226 | case EIO_READDIR: |
464 | { |
227 | { |
465 | SV *rv = &PL_sv_undef; |
228 | SV *rv = &PL_sv_undef; |
466 | |
229 | |
467 | if (req->result >= 0) |
230 | if (req->result >= 0) |
468 | { |
231 | { |
… | |
… | |
485 | |
248 | |
486 | PUSHs (rv); |
249 | PUSHs (rv); |
487 | } |
250 | } |
488 | break; |
251 | break; |
489 | |
252 | |
490 | case REQ_OPEN: |
253 | case EIO_OPEN: |
491 | { |
254 | { |
492 | /* convert fd to fh */ |
255 | /* convert fd to fh */ |
493 | SV *fh; |
256 | SV *fh = &PL_sv_undef; |
494 | |
257 | |
495 | PUSHs (sv_2mortal (newSViv (req->result))); |
258 | if (req->result >= 0) |
496 | PUTBACK; |
259 | { |
497 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
260 | GV *gv = (GV *)sv_newmortal (); |
498 | SPAGAIN; |
261 | int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
|
|
262 | char sym [64]; |
|
|
263 | int symlen; |
|
|
264 | |
|
|
265 | symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); |
|
|
266 | gv_init (gv, stash, sym, symlen, 0); |
499 | |
267 | |
500 | fh = POPs; |
268 | symlen = snprintf ( |
501 | PUSHMARK (SP); |
269 | sym, |
|
|
270 | sizeof (sym), |
|
|
271 | "%s&=%d", |
|
|
272 | flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
|
|
273 | req->result |
|
|
274 | ); |
|
|
275 | |
|
|
276 | if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
|
|
277 | fh = (SV *)gv; |
|
|
278 | } |
|
|
279 | |
502 | XPUSHs (fh); |
280 | PUSHs (fh); |
503 | } |
281 | } |
504 | break; |
282 | break; |
505 | |
283 | |
506 | case REQ_GROUP: |
284 | case EIO_GROUP: |
507 | req->int1 = 2; /* mark group as finished */ |
285 | req->int1 = 2; /* mark group as finished */ |
508 | |
286 | |
509 | if (req->sv1) |
287 | if (req->sv1) |
510 | { |
288 | { |
511 | int i; |
289 | int i; |
… | |
… | |
515 | for (i = 0; i <= AvFILL (av); ++i) |
293 | for (i = 0; i <= AvFILL (av); ++i) |
516 | PUSHs (*av_fetch (av, i, 0)); |
294 | PUSHs (*av_fetch (av, i, 0)); |
517 | } |
295 | } |
518 | break; |
296 | break; |
519 | |
297 | |
520 | case REQ_NOP: |
298 | case EIO_NOP: |
521 | case REQ_BUSY: |
299 | case EIO_BUSY: |
522 | break; |
300 | break; |
523 | |
301 | |
524 | case REQ_READLINK: |
302 | case EIO_READLINK: |
525 | if (req->result > 0) |
303 | if (req->result > 0) |
526 | { |
304 | PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
527 | SvCUR_set (req->sv1, req->result); |
|
|
528 | *SvEND (req->sv1) = 0; |
|
|
529 | PUSHs (req->sv1); |
|
|
530 | } |
|
|
531 | break; |
305 | break; |
532 | |
306 | |
533 | case REQ_STAT: |
307 | case EIO_STAT: |
534 | case REQ_LSTAT: |
308 | case EIO_LSTAT: |
535 | case REQ_FSTAT: |
309 | case EIO_FSTAT: |
536 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
310 | PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
537 | PL_laststatval = req->result; |
311 | PL_laststatval = req->result; |
538 | PL_statcache = *(Stat_t *)(req->ptr2); |
312 | PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
539 | PUSHs (sv_2mortal (newSViv (req->result))); |
313 | PUSHs (sv_2mortal (newSViv (req->result))); |
540 | break; |
314 | break; |
541 | |
315 | |
542 | case REQ_READ: |
316 | case EIO_READ: |
543 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
317 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
544 | *SvEND (req->sv1) = 0; |
318 | *SvEND (req->sv2) = 0; |
545 | PUSHs (sv_2mortal (newSViv (req->result))); |
319 | PUSHs (sv_2mortal (newSViv (req->result))); |
546 | break; |
320 | break; |
|
|
321 | |
|
|
322 | case EIO_DUP2: |
|
|
323 | if (req->result > 0) |
|
|
324 | req->result = 0; |
|
|
325 | /* FALLTHROUGH */ |
547 | |
326 | |
548 | default: |
327 | default: |
549 | PUSHs (sv_2mortal (newSViv (req->result))); |
328 | PUSHs (sv_2mortal (newSViv (req->result))); |
550 | break; |
329 | break; |
551 | } |
330 | } |
552 | |
331 | |
553 | errno = req->errorno; |
332 | errno = req->errorno; |
554 | |
333 | |
555 | PUTBACK; |
334 | PUTBACK; |
556 | call_sv (req->callback, G_VOID | G_EVAL); |
335 | call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
557 | SPAGAIN; |
336 | SPAGAIN; |
558 | |
337 | |
559 | FREETMPS; |
338 | FREETMPS; |
560 | LEAVE; |
339 | LEAVE; |
|
|
340 | |
|
|
341 | PUTBACK; |
561 | } |
342 | } |
562 | |
343 | |
563 | if (req->grp) |
|
|
564 | { |
|
|
565 | aio_req grp = req->grp; |
|
|
566 | |
|
|
567 | /* unlink request */ |
|
|
568 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
569 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
570 | |
|
|
571 | if (grp->grp_first == req) |
|
|
572 | grp->grp_first = req->grp_next; |
|
|
573 | |
|
|
574 | aio_grp_dec (grp); |
|
|
575 | } |
|
|
576 | |
|
|
577 | return !SvTRUE (ERRSV); |
344 | return !!SvTRUE (ERRSV); |
578 | } |
345 | } |
579 | |
346 | |
580 | static void req_free (aio_req req) |
347 | static void req_destroy (aio_req req) |
581 | { |
348 | { |
582 | if (req->self) |
349 | if (req->self) |
583 | { |
350 | { |
584 | sv_unmagic (req->self, PERL_MAGIC_ext); |
351 | sv_unmagic (req->self, PERL_MAGIC_ext); |
585 | SvREFCNT_dec (req->self); |
352 | SvREFCNT_dec (req->self); |
586 | } |
353 | } |
587 | |
354 | |
588 | SvREFCNT_dec (req->fh); |
|
|
589 | SvREFCNT_dec (req->sv1); |
355 | SvREFCNT_dec (req->sv1); |
590 | SvREFCNT_dec (req->sv2); |
356 | SvREFCNT_dec (req->sv2); |
591 | SvREFCNT_dec (req->callback); |
357 | SvREFCNT_dec (req->callback); |
592 | |
358 | |
593 | if (req->flags & FLAG_PTR2_FREE) |
|
|
594 | free (req->ptr2); |
|
|
595 | |
|
|
596 | Safefree (req); |
359 | Safefree (req); |
597 | } |
360 | } |
598 | |
361 | |
599 | static void req_cancel_subs (aio_req grp) |
362 | static void req_cancel_subs (aio_req grp) |
600 | { |
363 | { |
601 | aio_req sub; |
364 | aio_req sub; |
602 | |
365 | |
603 | if (grp->type != REQ_GROUP) |
366 | if (grp->type != EIO_GROUP) |
604 | return; |
367 | return; |
605 | |
368 | |
606 | SvREFCNT_dec (grp->sv2); |
369 | SvREFCNT_dec (grp->sv2); |
607 | grp->sv2 = 0; |
370 | grp->sv2 = 0; |
608 | |
371 | |
609 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
372 | eio_grp_cancel (grp); |
610 | req_cancel (sub); |
|
|
611 | } |
373 | } |
612 | |
374 | |
613 | static void req_cancel (aio_req req) |
375 | #ifdef USE_SOCKETS_AS_HANDLES |
614 | { |
376 | # define TO_SOCKET(x) (win32_get_osfhandle (x)) |
615 | req->flags |= FLAG_CANCELLED; |
377 | #else |
616 | |
378 | # define TO_SOCKET(x) (x) |
617 | req_cancel_subs (req); |
|
|
618 | } |
|
|
619 | |
|
|
620 | static void *aio_proc(void *arg); |
|
|
621 | |
|
|
622 | static void start_thread (void) |
|
|
623 | { |
|
|
624 | sigset_t fullsigset, oldsigset; |
|
|
625 | pthread_attr_t attr; |
|
|
626 | |
|
|
627 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
628 | |
|
|
629 | if (!wrk) |
|
|
630 | croak ("unable to allocate worker thread data"); |
|
|
631 | |
|
|
632 | pthread_attr_init (&attr); |
|
|
633 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
634 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
635 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
636 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
637 | #endif |
379 | #endif |
638 | |
380 | |
639 | sigfillset (&fullsigset); |
381 | static void |
|
|
382 | create_respipe (void) |
|
|
383 | { |
|
|
384 | int old_readfd = respipe [0]; |
640 | |
385 | |
641 | LOCK (wrklock); |
386 | if (respipe [1] >= 0) |
642 | pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
387 | respipe_close (TO_SOCKET (respipe [1])); |
643 | |
388 | |
644 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
389 | #ifdef _WIN32 |
|
|
390 | if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
|
|
391 | #else |
|
|
392 | if (pipe (respipe)) |
|
|
393 | #endif |
|
|
394 | croak ("unable to initialize result pipe"); |
|
|
395 | |
|
|
396 | if (old_readfd >= 0) |
645 | { |
397 | { |
646 | wrk->prev = &wrk_first; |
398 | if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
647 | wrk->next = wrk_first.next; |
399 | croak ("unable to initialize result pipe(2)"); |
648 | wrk_first.next->prev = wrk; |
400 | |
649 | wrk_first.next = wrk; |
401 | respipe_close (respipe [0]); |
650 | ++started; |
402 | respipe [0] = old_readfd; |
651 | } |
403 | } |
652 | else |
|
|
653 | free (wrk); |
|
|
654 | |
404 | |
655 | pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
405 | #ifdef _WIN32 |
656 | UNLOCK (wrklock); |
406 | int arg = 1; |
657 | } |
407 | if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
|
|
408 | || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
|
|
409 | #else |
|
|
410 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
|
|
411 | || fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
412 | #endif |
|
|
413 | croak ("unable to initialize result pipe(3)"); |
658 | |
414 | |
659 | static void maybe_start_thread () |
415 | respipe_osf [0] = TO_SOCKET (respipe [0]); |
660 | { |
416 | respipe_osf [1] = TO_SOCKET (respipe [1]); |
661 | if (get_nthreads () >= wanted) |
|
|
662 | return; |
|
|
663 | |
|
|
664 | /* todo: maybe use idle here, but might be less exact */ |
|
|
665 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
666 | return; |
|
|
667 | |
|
|
668 | start_thread (); |
|
|
669 | } |
417 | } |
670 | |
418 | |
671 | static void req_send (aio_req req) |
|
|
672 | { |
|
|
673 | block_sig (); |
|
|
674 | |
|
|
675 | ++nreqs; |
|
|
676 | |
|
|
677 | LOCK (reqlock); |
|
|
678 | ++nready; |
|
|
679 | reqq_push (&req_queue, req); |
|
|
680 | pthread_cond_signal (&reqwait); |
|
|
681 | UNLOCK (reqlock); |
|
|
682 | |
|
|
683 | unblock_sig (); |
|
|
684 | |
|
|
685 | maybe_start_thread (); |
|
|
686 | } |
|
|
687 | |
|
|
688 | static void end_thread (void) |
|
|
689 | { |
|
|
690 | aio_req req; |
|
|
691 | |
|
|
692 | Newz (0, req, 1, aio_cb); |
|
|
693 | |
|
|
694 | req->type = REQ_QUIT; |
|
|
695 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
696 | |
|
|
697 | LOCK (reqlock); |
|
|
698 | reqq_push (&req_queue, req); |
|
|
699 | pthread_cond_signal (&reqwait); |
|
|
700 | UNLOCK (reqlock); |
|
|
701 | |
|
|
702 | LOCK (wrklock); |
|
|
703 | --started; |
|
|
704 | UNLOCK (wrklock); |
|
|
705 | } |
|
|
706 | |
|
|
707 | static void set_max_idle (int nthreads) |
|
|
708 | { |
|
|
709 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
710 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
711 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
712 | } |
|
|
713 | |
|
|
714 | static void min_parallel (int nthreads) |
|
|
715 | { |
|
|
716 | if (wanted < nthreads) |
|
|
717 | wanted = nthreads; |
|
|
718 | } |
|
|
719 | |
|
|
720 | static void max_parallel (int nthreads) |
|
|
721 | { |
|
|
722 | if (wanted > nthreads) |
|
|
723 | wanted = nthreads; |
|
|
724 | |
|
|
725 | while (started > wanted) |
|
|
726 | end_thread (); |
|
|
727 | } |
|
|
728 | |
|
|
729 | static void poll_wait () |
419 | static void poll_wait (void) |
730 | { |
420 | { |
731 | fd_set rfd; |
421 | fd_set rfd; |
732 | |
422 | |
733 | while (nreqs) |
423 | while (eio_nreqs ()) |
734 | { |
424 | { |
735 | int size; |
425 | int size; |
736 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
426 | |
|
|
427 | X_LOCK (reslock); |
737 | size = res_queue.size; |
428 | size = res_queue.size; |
738 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
429 | X_UNLOCK (reslock); |
739 | |
430 | |
740 | if (size) |
431 | if (size) |
741 | return; |
432 | return; |
742 | |
433 | |
743 | maybe_start_thread (); |
434 | etp_maybe_start_thread (); |
744 | |
435 | |
745 | FD_ZERO(&rfd); |
436 | FD_ZERO (&rfd); |
746 | FD_SET(respipe [0], &rfd); |
437 | FD_SET (respipe [0], &rfd); |
747 | |
438 | |
748 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
439 | PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
749 | } |
440 | } |
750 | } |
441 | } |
751 | |
442 | |
752 | static int poll_cb () |
443 | static int poll_cb (void) |
753 | { |
444 | { |
754 | dSP; |
|
|
755 | int count = 0; |
|
|
756 | int maxreqs = max_poll_reqs; |
|
|
757 | int do_croak = 0; |
|
|
758 | struct timeval tv_start, tv_now; |
|
|
759 | aio_req req; |
|
|
760 | |
|
|
761 | if (max_poll_time) |
|
|
762 | gettimeofday (&tv_start, 0); |
|
|
763 | |
|
|
764 | block_sig (); |
|
|
765 | |
|
|
766 | for (;;) |
445 | for (;;) |
767 | { |
446 | { |
768 | for (;;) |
447 | int res = eio_poll (); |
769 | { |
|
|
770 | maybe_start_thread (); |
|
|
771 | |
448 | |
772 | LOCK (reslock); |
449 | if (res > 0) |
773 | req = reqq_shift (&res_queue); |
|
|
774 | |
|
|
775 | if (req) |
|
|
776 | { |
|
|
777 | --npending; |
|
|
778 | |
|
|
779 | if (!res_queue.size) |
|
|
780 | { |
|
|
781 | /* read any signals sent by the worker threads */ |
|
|
782 | char buf [32]; |
|
|
783 | while (read (respipe [0], buf, 32) == 32) |
|
|
784 | ; |
|
|
785 | } |
|
|
786 | } |
|
|
787 | |
|
|
788 | UNLOCK (reslock); |
|
|
789 | |
|
|
790 | if (!req) |
|
|
791 | break; |
|
|
792 | |
|
|
793 | --nreqs; |
|
|
794 | |
|
|
795 | if (req->type == REQ_GROUP && req->size) |
|
|
796 | { |
|
|
797 | req->int1 = 1; /* mark request as delayed */ |
|
|
798 | continue; |
|
|
799 | } |
|
|
800 | else |
|
|
801 | { |
|
|
802 | if (!req_invoke (req)) |
|
|
803 | { |
|
|
804 | req_free (req); |
|
|
805 | unblock_sig (); |
|
|
806 | croak (0); |
450 | croak (0); |
807 | } |
|
|
808 | |
451 | |
809 | count++; |
452 | if (!max_outstanding || max_outstanding > eio_nreqs ()) |
810 | } |
453 | return res; |
811 | |
|
|
812 | req_free (req); |
|
|
813 | |
|
|
814 | if (maxreqs && !--maxreqs) |
|
|
815 | break; |
|
|
816 | |
|
|
817 | if (max_poll_time) |
|
|
818 | { |
|
|
819 | gettimeofday (&tv_now, 0); |
|
|
820 | |
|
|
821 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
822 | break; |
|
|
823 | } |
|
|
824 | } |
|
|
825 | |
|
|
826 | if (nreqs <= max_outstanding) |
|
|
827 | break; |
|
|
828 | |
454 | |
829 | poll_wait (); |
455 | poll_wait (); |
830 | |
|
|
831 | ++maxreqs; |
|
|
832 | } |
456 | } |
833 | |
|
|
834 | unblock_sig (); |
|
|
835 | return count; |
|
|
836 | } |
457 | } |
837 | |
458 | |
838 | static void create_pipe () |
459 | static void atfork_child (void) |
839 | { |
460 | { |
840 | if (pipe (respipe)) |
461 | create_respipe (); |
841 | croak ("unable to initialize result pipe"); |
|
|
842 | |
|
|
843 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
844 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
845 | |
|
|
846 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
847 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
848 | } |
462 | } |
849 | |
463 | |
850 | /*****************************************************************************/ |
464 | static SV * |
851 | /* work around various missing functions */ |
465 | get_cb (SV *cb_sv) |
852 | |
|
|
853 | #if !HAVE_PREADWRITE |
|
|
854 | # define pread aio_pread |
|
|
855 | # define pwrite aio_pwrite |
|
|
856 | |
|
|
857 | /* |
|
|
858 | * make our pread/pwrite safe against themselves, but not against |
|
|
859 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
860 | * but that's your problem, not mine. |
|
|
861 | */ |
|
|
862 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
863 | |
|
|
864 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
865 | { |
466 | { |
866 | ssize_t res; |
467 | HV *st; |
867 | off_t ooffset; |
468 | GV *gvp; |
|
|
469 | CV *cv; |
868 | |
470 | |
869 | LOCK (preadwritelock); |
471 | if (!SvOK (cb_sv)) |
870 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
871 | lseek (fd, offset, SEEK_SET); |
|
|
872 | res = read (fd, buf, count); |
|
|
873 | lseek (fd, ooffset, SEEK_SET); |
|
|
874 | UNLOCK (preadwritelock); |
|
|
875 | |
|
|
876 | return res; |
|
|
877 | } |
|
|
878 | |
|
|
879 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
880 | { |
|
|
881 | ssize_t res; |
|
|
882 | off_t ooffset; |
|
|
883 | |
|
|
884 | LOCK (preadwritelock); |
|
|
885 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
886 | lseek (fd, offset, SEEK_SET); |
|
|
887 | res = write (fd, buf, count); |
|
|
888 | lseek (fd, offset, SEEK_SET); |
|
|
889 | UNLOCK (preadwritelock); |
|
|
890 | |
|
|
891 | return res; |
|
|
892 | } |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | #if !HAVE_FDATASYNC |
|
|
896 | # define fdatasync fsync |
|
|
897 | #endif |
|
|
898 | |
|
|
899 | #if !HAVE_READAHEAD |
|
|
900 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
901 | |
|
|
902 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
903 | { |
|
|
904 | dBUF; |
|
|
905 | |
|
|
906 | while (count > 0) |
|
|
907 | { |
|
|
908 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
|
|
909 | |
|
|
910 | pread (fd, aio_buf, len, offset); |
|
|
911 | offset += len; |
|
|
912 | count -= len; |
|
|
913 | } |
|
|
914 | |
|
|
915 | errno = 0; |
|
|
916 | } |
|
|
917 | |
|
|
918 | #endif |
|
|
919 | |
|
|
920 | #if !HAVE_READDIR_R |
|
|
921 | # define readdir_r aio_readdir_r |
|
|
922 | |
|
|
923 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
924 | |
|
|
925 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
926 | { |
|
|
927 | struct dirent *e; |
|
|
928 | int errorno; |
|
|
929 | |
|
|
930 | LOCK (readdirlock); |
|
|
931 | |
|
|
932 | e = readdir (dirp); |
|
|
933 | errorno = errno; |
|
|
934 | |
|
|
935 | if (e) |
|
|
936 | { |
|
|
937 | *res = ent; |
|
|
938 | strcpy (ent->d_name, e->d_name); |
|
|
939 | } |
|
|
940 | else |
|
|
941 | *res = 0; |
|
|
942 | |
|
|
943 | UNLOCK (readdirlock); |
|
|
944 | |
|
|
945 | errno = errorno; |
|
|
946 | return e ? 0 : -1; |
|
|
947 | } |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | /* sendfile always needs emulation */ |
|
|
951 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
952 | { |
|
|
953 | ssize_t res; |
|
|
954 | |
|
|
955 | if (!count) |
|
|
956 | return 0; |
472 | return 0; |
957 | |
473 | |
958 | #if HAVE_SENDFILE |
474 | cv = sv_2cv (cb_sv, &st, &gvp, 0); |
959 | # if __linux |
|
|
960 | res = sendfile (ofd, ifd, &offset, count); |
|
|
961 | |
475 | |
962 | # elif __freebsd |
476 | if (!cv) |
963 | /* |
477 | croak ("IO::AIO callback must be undef or a CODE reference"); |
964 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
965 | * wasted on making it similar to other I/O functions. |
|
|
966 | */ |
|
|
967 | { |
|
|
968 | off_t sbytes; |
|
|
969 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
970 | |
478 | |
971 | if (res < 0 && sbytes) |
479 | return (SV *)cv; |
972 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
973 | res = sbytes; |
|
|
974 | } |
|
|
975 | |
|
|
976 | # elif __hpux |
|
|
977 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
978 | |
|
|
979 | # elif __solaris |
|
|
980 | { |
|
|
981 | struct sendfilevec vec; |
|
|
982 | size_t sbytes; |
|
|
983 | |
|
|
984 | vec.sfv_fd = ifd; |
|
|
985 | vec.sfv_flag = 0; |
|
|
986 | vec.sfv_off = offset; |
|
|
987 | vec.sfv_len = count; |
|
|
988 | |
|
|
989 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
990 | |
|
|
991 | if (res < 0 && sbytes) |
|
|
992 | res = sbytes; |
|
|
993 | } |
|
|
994 | |
|
|
995 | # endif |
|
|
996 | #else |
|
|
997 | res = -1; |
|
|
998 | errno = ENOSYS; |
|
|
999 | #endif |
|
|
1000 | |
|
|
1001 | if (res < 0 |
|
|
1002 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
1003 | #if __solaris |
|
|
1004 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
1005 | #endif |
|
|
1006 | ) |
|
|
1007 | ) |
|
|
1008 | { |
|
|
1009 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
1010 | dBUF; |
|
|
1011 | |
|
|
1012 | res = 0; |
|
|
1013 | |
|
|
1014 | while (count) |
|
|
1015 | { |
|
|
1016 | ssize_t cnt; |
|
|
1017 | |
|
|
1018 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
1019 | |
|
|
1020 | if (cnt <= 0) |
|
|
1021 | { |
|
|
1022 | if (cnt && !res) res = -1; |
|
|
1023 | break; |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | cnt = write (ofd, aio_buf, cnt); |
|
|
1027 | |
|
|
1028 | if (cnt <= 0) |
|
|
1029 | { |
|
|
1030 | if (cnt && !res) res = -1; |
|
|
1031 | break; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | offset += cnt; |
|
|
1035 | res += cnt; |
|
|
1036 | count -= cnt; |
|
|
1037 | } |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | return res; |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | /* read a full directory */ |
|
|
1044 | static void scandir_ (aio_req req, worker *self) |
|
|
1045 | { |
|
|
1046 | DIR *dirp; |
|
|
1047 | union |
|
|
1048 | { |
|
|
1049 | struct dirent d; |
|
|
1050 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
1051 | } *u; |
|
|
1052 | struct dirent *entp; |
|
|
1053 | char *name, *names; |
|
|
1054 | int memlen = 4096; |
|
|
1055 | int memofs = 0; |
|
|
1056 | int res = 0; |
|
|
1057 | int errorno; |
|
|
1058 | |
|
|
1059 | LOCK (wrklock); |
|
|
1060 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1061 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1062 | req->flags |= FLAG_PTR2_FREE; |
|
|
1063 | req->ptr2 = names = malloc (memlen); |
|
|
1064 | UNLOCK (wrklock); |
|
|
1065 | |
|
|
1066 | if (dirp && u && names) |
|
|
1067 | for (;;) |
|
|
1068 | { |
|
|
1069 | errno = 0; |
|
|
1070 | readdir_r (dirp, &u->d, &entp); |
|
|
1071 | |
|
|
1072 | if (!entp) |
|
|
1073 | break; |
|
|
1074 | |
|
|
1075 | name = entp->d_name; |
|
|
1076 | |
|
|
1077 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1078 | { |
|
|
1079 | int len = strlen (name) + 1; |
|
|
1080 | |
|
|
1081 | res++; |
|
|
1082 | |
|
|
1083 | while (memofs + len > memlen) |
|
|
1084 | { |
|
|
1085 | memlen *= 2; |
|
|
1086 | LOCK (wrklock); |
|
|
1087 | req->ptr2 = names = realloc (names, memlen); |
|
|
1088 | UNLOCK (wrklock); |
|
|
1089 | |
|
|
1090 | if (!names) |
|
|
1091 | break; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | memcpy (names + memofs, name, len); |
|
|
1095 | memofs += len; |
|
|
1096 | } |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | if (errno) |
|
|
1100 | res = -1; |
|
|
1101 | |
|
|
1102 | req->result = res; |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | /*****************************************************************************/ |
|
|
1106 | |
|
|
1107 | static void *aio_proc (void *thr_arg) |
|
|
1108 | { |
|
|
1109 | aio_req req; |
|
|
1110 | struct timespec ts; |
|
|
1111 | worker *self = (worker *)thr_arg; |
|
|
1112 | |
|
|
1113 | /* try to distribute timeouts somewhat evenly */ |
|
|
1114 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1115 | * (1000000000UL / 1024UL); |
|
|
1116 | |
|
|
1117 | for (;;) |
|
|
1118 | { |
|
|
1119 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1120 | |
|
|
1121 | LOCK (reqlock); |
|
|
1122 | |
|
|
1123 | for (;;) |
|
|
1124 | { |
|
|
1125 | self->req = req = reqq_shift (&req_queue); |
|
|
1126 | |
|
|
1127 | if (req) |
|
|
1128 | break; |
|
|
1129 | |
|
|
1130 | ++idle; |
|
|
1131 | |
|
|
1132 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1133 | == ETIMEDOUT) |
|
|
1134 | { |
|
|
1135 | if (idle > max_idle) |
|
|
1136 | { |
|
|
1137 | --idle; |
|
|
1138 | UNLOCK (reqlock); |
|
|
1139 | LOCK (wrklock); |
|
|
1140 | --started; |
|
|
1141 | UNLOCK (wrklock); |
|
|
1142 | goto quit; |
|
|
1143 | } |
|
|
1144 | |
|
|
1145 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1146 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1147 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | --idle; |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | --nready; |
|
|
1154 | |
|
|
1155 | UNLOCK (reqlock); |
|
|
1156 | |
|
|
1157 | errno = 0; /* strictly unnecessary */ |
|
|
1158 | |
|
|
1159 | if (!(req->flags & FLAG_CANCELLED)) |
|
|
1160 | switch (req->type) |
|
|
1161 | { |
|
|
1162 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
|
|
1163 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
|
|
1164 | |
|
|
1165 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1166 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1167 | |
|
|
1168 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1169 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1170 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1171 | |
|
|
1172 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1173 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1174 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1175 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1176 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1177 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1178 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1179 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1180 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1181 | |
|
|
1182 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1183 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1184 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1185 | |
|
|
1186 | case REQ_BUSY: |
|
|
1187 | { |
|
|
1188 | struct timeval tv; |
|
|
1189 | |
|
|
1190 | tv.tv_sec = req->int1; |
|
|
1191 | tv.tv_usec = req->int2; |
|
|
1192 | |
|
|
1193 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1194 | } |
|
|
1195 | |
|
|
1196 | case REQ_GROUP: |
|
|
1197 | case REQ_NOP: |
|
|
1198 | break; |
|
|
1199 | |
|
|
1200 | case REQ_QUIT: |
|
|
1201 | goto quit; |
|
|
1202 | |
|
|
1203 | default: |
|
|
1204 | req->result = ENOSYS; |
|
|
1205 | break; |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | req->errorno = errno; |
|
|
1209 | |
|
|
1210 | LOCK (reslock); |
|
|
1211 | |
|
|
1212 | ++npending; |
|
|
1213 | |
|
|
1214 | if (!reqq_push (&res_queue, req)) |
|
|
1215 | { |
|
|
1216 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
1217 | write (respipe [1], &respipe, 1); |
|
|
1218 | |
|
|
1219 | /* optionally signal the main thread asynchronously */ |
|
|
1220 | if (main_sig) |
|
|
1221 | pthread_kill (main_tid, main_sig); |
|
|
1222 | } |
|
|
1223 | |
|
|
1224 | self->req = 0; |
|
|
1225 | worker_clear (self); |
|
|
1226 | |
|
|
1227 | UNLOCK (reslock); |
|
|
1228 | } |
|
|
1229 | |
|
|
1230 | quit: |
|
|
1231 | LOCK (wrklock); |
|
|
1232 | worker_free (self); |
|
|
1233 | UNLOCK (wrklock); |
|
|
1234 | |
|
|
1235 | return 0; |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | /*****************************************************************************/ |
|
|
1239 | |
|
|
1240 | static void atfork_prepare (void) |
|
|
1241 | { |
|
|
1242 | LOCK (wrklock); |
|
|
1243 | LOCK (reqlock); |
|
|
1244 | LOCK (reslock); |
|
|
1245 | #if !HAVE_PREADWRITE |
|
|
1246 | LOCK (preadwritelock); |
|
|
1247 | #endif |
|
|
1248 | #if !HAVE_READDIR_R |
|
|
1249 | LOCK (readdirlock); |
|
|
1250 | #endif |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | static void atfork_parent (void) |
|
|
1254 | { |
|
|
1255 | #if !HAVE_READDIR_R |
|
|
1256 | UNLOCK (readdirlock); |
|
|
1257 | #endif |
|
|
1258 | #if !HAVE_PREADWRITE |
|
|
1259 | UNLOCK (preadwritelock); |
|
|
1260 | #endif |
|
|
1261 | UNLOCK (reslock); |
|
|
1262 | UNLOCK (reqlock); |
|
|
1263 | UNLOCK (wrklock); |
|
|
1264 | } |
|
|
1265 | |
|
|
1266 | static void atfork_child (void) |
|
|
1267 | { |
|
|
1268 | aio_req prv; |
|
|
1269 | |
|
|
1270 | while (prv = reqq_shift (&req_queue)) |
|
|
1271 | req_free (prv); |
|
|
1272 | |
|
|
1273 | while (prv = reqq_shift (&res_queue)) |
|
|
1274 | req_free (prv); |
|
|
1275 | |
|
|
1276 | while (wrk_first.next != &wrk_first) |
|
|
1277 | { |
|
|
1278 | worker *wrk = wrk_first.next; |
|
|
1279 | |
|
|
1280 | if (wrk->req) |
|
|
1281 | req_free (wrk->req); |
|
|
1282 | |
|
|
1283 | worker_clear (wrk); |
|
|
1284 | worker_free (wrk); |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | started = 0; |
|
|
1288 | idle = 0; |
|
|
1289 | nreqs = 0; |
|
|
1290 | nready = 0; |
|
|
1291 | npending = 0; |
|
|
1292 | |
|
|
1293 | close (respipe [0]); |
|
|
1294 | close (respipe [1]); |
|
|
1295 | create_pipe (); |
|
|
1296 | |
|
|
1297 | atfork_parent (); |
|
|
1298 | } |
480 | } |
1299 | |
481 | |
1300 | #define dREQ \ |
482 | #define dREQ \ |
|
|
483 | SV *cb_cv; \ |
1301 | aio_req req; \ |
484 | aio_req req; \ |
1302 | int req_pri = next_pri; \ |
485 | int req_pri = next_pri; \ |
1303 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
486 | next_pri = EIO_PRI_DEFAULT; \ |
1304 | \ |
487 | \ |
1305 | if (SvOK (callback) && !SvROK (callback)) \ |
488 | cb_cv = get_cb (callback); \ |
1306 | croak ("callback must be undef or of reference type"); \ |
|
|
1307 | \ |
489 | \ |
1308 | Newz (0, req, 1, aio_cb); \ |
490 | Newz (0, req, 1, eio_req); \ |
1309 | if (!req) \ |
491 | if (!req) \ |
1310 | croak ("out of memory during aio_req allocation"); \ |
492 | croak ("out of memory during eio_req allocation"); \ |
1311 | \ |
493 | \ |
1312 | req->callback = newSVsv (callback); \ |
494 | req->callback = SvREFCNT_inc (cb_cv); \ |
1313 | req->pri = req_pri |
495 | req->pri = req_pri |
1314 | |
496 | |
1315 | #define REQ_SEND \ |
497 | #define REQ_SEND \ |
|
|
498 | PUTBACK; \ |
1316 | req_send (req); \ |
499 | req_submit (req); \ |
|
|
500 | SPAGAIN; \ |
1317 | \ |
501 | \ |
1318 | if (GIMME_V != G_VOID) \ |
502 | if (GIMME_V != G_VOID) \ |
1319 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
503 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
1320 | |
504 | |
1321 | MODULE = IO::AIO PACKAGE = IO::AIO |
505 | MODULE = IO::AIO PACKAGE = IO::AIO |
1322 | |
506 | |
1323 | PROTOTYPES: ENABLE |
507 | PROTOTYPES: ENABLE |
1324 | |
508 | |
1325 | BOOT: |
509 | BOOT: |
1326 | { |
510 | { |
1327 | HV *stash = gv_stashpv ("IO::AIO", 1); |
511 | stash = gv_stashpv ("IO::AIO", 1); |
1328 | |
512 | |
1329 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
513 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1330 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
514 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1331 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
515 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1332 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
516 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
1333 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
517 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
518 | #ifndef _WIN32 |
1334 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
519 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
520 | #endif |
1335 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
521 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
522 | newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE)); |
|
|
523 | newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE)); |
|
|
524 | newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER)); |
1336 | |
525 | |
1337 | create_pipe (); |
526 | create_respipe (); |
1338 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
527 | |
|
|
528 | if (eio_init (want_poll, done_poll) < 0) |
|
|
529 | croak ("IO::AIO: unable to initialise eio library"); |
|
|
530 | |
|
|
531 | /* atfork child called in fifo order, so before eio's handler */ |
|
|
532 | X_THREAD_ATFORK (0, 0, atfork_child); |
1339 | } |
533 | } |
1340 | |
534 | |
1341 | void |
535 | void |
1342 | max_poll_reqs (int nreqs) |
536 | max_poll_reqs (int nreqs) |
1343 | PROTOTYPE: $ |
537 | PROTOTYPE: $ |
1344 | CODE: |
538 | CODE: |
1345 | max_poll_reqs = nreqs; |
539 | eio_set_max_poll_reqs (nreqs); |
1346 | |
540 | |
1347 | void |
541 | void |
1348 | max_poll_time (double nseconds) |
542 | max_poll_time (double nseconds) |
1349 | PROTOTYPE: $ |
543 | PROTOTYPE: $ |
1350 | CODE: |
544 | CODE: |
1351 | max_poll_time = nseconds * AIO_TICKS; |
545 | eio_set_max_poll_time (nseconds); |
1352 | |
546 | |
1353 | void |
547 | void |
1354 | min_parallel (int nthreads) |
548 | min_parallel (int nthreads) |
1355 | PROTOTYPE: $ |
549 | PROTOTYPE: $ |
|
|
550 | CODE: |
|
|
551 | eio_set_min_parallel (nthreads); |
1356 | |
552 | |
1357 | void |
553 | void |
1358 | max_parallel (int nthreads) |
554 | max_parallel (int nthreads) |
1359 | PROTOTYPE: $ |
555 | PROTOTYPE: $ |
|
|
556 | CODE: |
|
|
557 | eio_set_max_parallel (nthreads); |
1360 | |
558 | |
1361 | void |
559 | void |
1362 | max_idle (int nthreads) |
560 | max_idle (int nthreads) |
1363 | PROTOTYPE: $ |
561 | PROTOTYPE: $ |
1364 | CODE: |
562 | CODE: |
1365 | set_max_idle (nthreads); |
563 | eio_set_max_idle (nthreads); |
1366 | |
564 | |
1367 | int |
565 | void |
1368 | max_outstanding (int maxreqs) |
566 | max_outstanding (int maxreqs) |
1369 | PROTOTYPE: $ |
567 | PROTOTYPE: $ |
1370 | CODE: |
568 | CODE: |
1371 | RETVAL = max_outstanding; |
|
|
1372 | max_outstanding = maxreqs; |
569 | max_outstanding = maxreqs; |
1373 | OUTPUT: |
|
|
1374 | RETVAL |
|
|
1375 | |
570 | |
1376 | void |
571 | void |
1377 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
572 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
1378 | SV8 * pathname |
|
|
1379 | int flags |
|
|
1380 | int mode |
|
|
1381 | SV * callback |
|
|
1382 | PROTOTYPE: $$$;$ |
573 | PROTOTYPE: $$$;$ |
1383 | PPCODE: |
574 | PPCODE: |
1384 | { |
575 | { |
1385 | dREQ; |
576 | dREQ; |
1386 | |
577 | |
1387 | req->type = REQ_OPEN; |
578 | req->type = EIO_OPEN; |
1388 | req->sv1 = newSVsv (pathname); |
579 | req->sv1 = newSVsv (pathname); |
1389 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
580 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1390 | req->int1 = flags; |
581 | req->int1 = flags; |
1391 | req->mode = mode; |
582 | req->int2 = mode; |
1392 | |
583 | |
1393 | REQ_SEND; |
584 | REQ_SEND; |
1394 | } |
585 | } |
1395 | |
586 | |
1396 | void |
587 | void |
1397 | aio_close (fh,callback=&PL_sv_undef) |
588 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
1398 | SV * fh |
|
|
1399 | SV * callback |
|
|
1400 | PROTOTYPE: $;$ |
589 | PROTOTYPE: $;$ |
1401 | ALIAS: |
590 | ALIAS: |
1402 | aio_close = REQ_CLOSE |
|
|
1403 | aio_fsync = REQ_FSYNC |
591 | aio_fsync = EIO_FSYNC |
1404 | aio_fdatasync = REQ_FDATASYNC |
592 | aio_fdatasync = EIO_FDATASYNC |
1405 | PPCODE: |
593 | PPCODE: |
1406 | { |
594 | { |
1407 | dREQ; |
595 | dREQ; |
1408 | |
596 | |
1409 | req->type = ix; |
597 | req->type = ix; |
1410 | req->fh = newSVsv (fh); |
598 | req->sv1 = newSVsv (fh); |
1411 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
599 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1412 | |
600 | |
1413 | REQ_SEND (req); |
601 | REQ_SEND (req); |
1414 | } |
602 | } |
1415 | |
603 | |
1416 | void |
604 | void |
|
|
605 | aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) |
|
|
606 | PROTOTYPE: $$$$;$ |
|
|
607 | PPCODE: |
|
|
608 | { |
|
|
609 | dREQ; |
|
|
610 | |
|
|
611 | req->type = EIO_SYNC_FILE_RANGE; |
|
|
612 | req->sv1 = newSVsv (fh); |
|
|
613 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
614 | req->offs = SvVAL64 (offset); |
|
|
615 | req->size = SvVAL64 (nbytes); |
|
|
616 | req->int2 = flags; |
|
|
617 | |
|
|
618 | REQ_SEND (req); |
|
|
619 | } |
|
|
620 | |
|
|
621 | void |
|
|
622 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
|
|
623 | PROTOTYPE: $;$ |
|
|
624 | PPCODE: |
|
|
625 | { |
|
|
626 | static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
|
|
627 | dREQ; |
|
|
628 | |
|
|
629 | if (close_pipe < 0) |
|
|
630 | { |
|
|
631 | int pipefd [2]; |
|
|
632 | |
|
|
633 | if (pipe (pipefd) < 0 |
|
|
634 | || close (pipefd [1]) < 0 |
|
|
635 | || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
|
|
636 | abort (); /*D*/ |
|
|
637 | |
|
|
638 | close_pipe = pipefd [0]; |
|
|
639 | } |
|
|
640 | |
|
|
641 | req->type = EIO_DUP2; |
|
|
642 | req->int1 = close_pipe; |
|
|
643 | req->sv2 = newSVsv (fh); |
|
|
644 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
645 | |
|
|
646 | REQ_SEND (req); |
|
|
647 | } |
|
|
648 | |
|
|
649 | void |
1417 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
650 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
1418 | SV * fh |
|
|
1419 | UV offset |
|
|
1420 | UV length |
|
|
1421 | SV8 * data |
|
|
1422 | UV dataoffset |
|
|
1423 | SV * callback |
|
|
1424 | ALIAS: |
651 | ALIAS: |
1425 | aio_read = REQ_READ |
652 | aio_read = EIO_READ |
1426 | aio_write = REQ_WRITE |
653 | aio_write = EIO_WRITE |
1427 | PROTOTYPE: $$$$$;$ |
654 | PROTOTYPE: $$$$$;$ |
1428 | PPCODE: |
655 | PPCODE: |
1429 | { |
656 | { |
1430 | STRLEN svlen; |
657 | STRLEN svlen; |
1431 | char *svptr = SvPVbyte (data, svlen); |
658 | char *svptr = SvPVbyte (data, svlen); |
|
|
659 | UV len = SvUV (length); |
|
|
660 | int fd; |
|
|
661 | |
|
|
662 | if (SvTYPE (data) > SVt_PVMG) |
|
|
663 | croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data)); |
1432 | |
664 | |
1433 | SvUPGRADE (data, SVt_PV); |
665 | SvUPGRADE (data, SVt_PV); |
1434 | SvPOK_on (data); |
666 | SvPOK_only (data); |
1435 | |
667 | |
1436 | if (dataoffset < 0) |
668 | if (dataoffset < 0) |
1437 | dataoffset += svlen; |
669 | dataoffset += svlen; |
1438 | |
670 | |
1439 | if (dataoffset < 0 || dataoffset > svlen) |
671 | if (dataoffset < 0 || dataoffset > svlen) |
1440 | croak ("data offset outside of string"); |
672 | croak ("dataoffset outside of data scalar"); |
1441 | |
673 | |
1442 | if (ix == REQ_WRITE) |
674 | if (ix == EIO_WRITE) |
1443 | { |
675 | { |
1444 | /* write: check length and adjust. */ |
676 | /* write: check length and adjust. */ |
1445 | if (length < 0 || length + dataoffset > svlen) |
677 | if (!SvOK (length) || len + dataoffset > svlen) |
1446 | length = svlen - dataoffset; |
678 | len = svlen - dataoffset; |
1447 | } |
679 | } |
1448 | else |
680 | else |
1449 | { |
681 | { |
1450 | /* read: grow scalar as necessary */ |
682 | /* read: grow scalar as necessary */ |
1451 | svptr = SvGROW (data, length + dataoffset); |
683 | svptr = SvGROW (data, len + dataoffset + 1); |
1452 | } |
684 | } |
1453 | |
685 | |
1454 | if (length < 0) |
686 | if (len < 0) |
1455 | croak ("length must not be negative"); |
687 | croak ("length must not be negative"); |
|
|
688 | |
|
|
689 | fd = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) |
|
|
690 | : IoOFP (sv_2io (fh))); |
|
|
691 | |
|
|
692 | if (fd < 0) |
|
|
693 | croak ("illegal fh argument, either not an OS file or read/write mode mismatch"); |
1456 | |
694 | |
1457 | { |
695 | { |
1458 | dREQ; |
696 | dREQ; |
1459 | |
697 | |
1460 | req->type = ix; |
698 | req->type = ix; |
1461 | req->fh = newSVsv (fh); |
699 | req->sv1 = newSVsv (fh); |
1462 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
700 | req->int1 = df; |
1463 | : IoOFP (sv_2io (fh))); |
701 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
1464 | req->offs = offset; |
|
|
1465 | req->size = length; |
702 | req->size = len; |
1466 | req->sv1 = SvREFCNT_inc (data); |
703 | req->sv2 = SvREFCNT_inc (data); |
1467 | req->ptr1 = (char *)svptr + dataoffset; |
704 | req->ptr2 = (char *)svptr + dataoffset; |
1468 | req->stroffset = dataoffset; |
705 | req->stroffset = dataoffset; |
1469 | |
706 | |
1470 | if (!SvREADONLY (data)) |
707 | if (!SvREADONLY (data)) |
1471 | { |
708 | { |
1472 | SvREADONLY_on (data); |
709 | SvREADONLY_on (data); |
1473 | req->flags |= FLAG_SV1_RO_OFF; |
710 | req->flags |= FLAG_SV2_RO_OFF; |
1474 | } |
711 | } |
1475 | |
712 | |
1476 | REQ_SEND; |
713 | REQ_SEND; |
1477 | } |
714 | } |
1478 | } |
715 | } |
1479 | |
716 | |
1480 | void |
717 | void |
1481 | aio_readlink (path,callback=&PL_sv_undef) |
718 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
1482 | SV8 * path |
|
|
1483 | SV * callback |
|
|
1484 | PROTOTYPE: $$;$ |
719 | PROTOTYPE: $$;$ |
1485 | PPCODE: |
720 | PPCODE: |
1486 | { |
721 | { |
1487 | SV *data; |
722 | SV *data; |
1488 | dREQ; |
723 | dREQ; |
1489 | |
724 | |
1490 | data = newSV (NAME_MAX); |
|
|
1491 | SvPOK_on (data); |
|
|
1492 | |
|
|
1493 | req->type = REQ_READLINK; |
725 | req->type = EIO_READLINK; |
1494 | req->fh = newSVsv (path); |
726 | req->sv1 = newSVsv (path); |
1495 | req->ptr2 = SvPVbyte_nolen (req->fh); |
727 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1496 | req->sv1 = data; |
|
|
1497 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1498 | |
728 | |
1499 | REQ_SEND; |
729 | REQ_SEND; |
1500 | } |
730 | } |
1501 | |
731 | |
1502 | void |
732 | void |
1503 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
733 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
1504 | SV * out_fh |
|
|
1505 | SV * in_fh |
|
|
1506 | UV in_offset |
|
|
1507 | UV length |
|
|
1508 | SV * callback |
|
|
1509 | PROTOTYPE: $$$$;$ |
734 | PROTOTYPE: $$$$;$ |
1510 | PPCODE: |
735 | PPCODE: |
1511 | { |
736 | { |
1512 | dREQ; |
737 | dREQ; |
1513 | |
738 | |
1514 | req->type = REQ_SENDFILE; |
739 | req->type = EIO_SENDFILE; |
1515 | req->fh = newSVsv (out_fh); |
740 | req->sv1 = newSVsv (out_fh); |
1516 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
741 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1517 | req->sv2 = newSVsv (in_fh); |
742 | req->sv2 = newSVsv (in_fh); |
1518 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
743 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1519 | req->offs = in_offset; |
744 | req->offs = SvVAL64 (in_offset); |
1520 | req->size = length; |
745 | req->size = length; |
1521 | |
746 | |
1522 | REQ_SEND; |
747 | REQ_SEND; |
1523 | } |
748 | } |
1524 | |
749 | |
1525 | void |
750 | void |
1526 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
751 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
1527 | SV * fh |
|
|
1528 | UV offset |
|
|
1529 | IV length |
|
|
1530 | SV * callback |
|
|
1531 | PROTOTYPE: $$$;$ |
752 | PROTOTYPE: $$$;$ |
1532 | PPCODE: |
753 | PPCODE: |
1533 | { |
754 | { |
1534 | dREQ; |
755 | dREQ; |
1535 | |
756 | |
1536 | req->type = REQ_READAHEAD; |
757 | req->type = EIO_READAHEAD; |
1537 | req->fh = newSVsv (fh); |
758 | req->sv1 = newSVsv (fh); |
1538 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
759 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1539 | req->offs = offset; |
760 | req->offs = SvVAL64 (offset); |
1540 | req->size = length; |
761 | req->size = length; |
1541 | |
762 | |
1542 | REQ_SEND; |
763 | REQ_SEND; |
1543 | } |
764 | } |
1544 | |
765 | |
1545 | void |
766 | void |
1546 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
767 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
1547 | SV8 * fh_or_path |
|
|
1548 | SV * callback |
|
|
1549 | ALIAS: |
768 | ALIAS: |
1550 | aio_stat = REQ_STAT |
769 | aio_stat = EIO_STAT |
1551 | aio_lstat = REQ_LSTAT |
770 | aio_lstat = EIO_LSTAT |
1552 | PPCODE: |
771 | PPCODE: |
1553 | { |
772 | { |
1554 | dREQ; |
773 | dREQ; |
1555 | |
774 | |
1556 | req->ptr2 = malloc (sizeof (Stat_t)); |
775 | req->sv1 = newSVsv (fh_or_path); |
1557 | if (!req->ptr2) |
|
|
1558 | { |
|
|
1559 | req_free (req); |
|
|
1560 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1561 | } |
|
|
1562 | |
776 | |
1563 | req->flags |= FLAG_PTR2_FREE; |
777 | if (SvPOK (req->sv1)) |
1564 | |
|
|
1565 | if (SvPOK (fh_or_path)) |
|
|
1566 | { |
778 | { |
1567 | req->type = ix; |
779 | req->type = ix; |
1568 | req->sv1 = newSVsv (fh_or_path); |
|
|
1569 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
780 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1570 | } |
781 | } |
1571 | else |
782 | else |
1572 | { |
783 | { |
1573 | req->type = REQ_FSTAT; |
784 | req->type = EIO_FSTAT; |
1574 | req->fh = newSVsv (fh_or_path); |
|
|
1575 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
785 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1576 | } |
786 | } |
1577 | |
787 | |
1578 | REQ_SEND; |
788 | REQ_SEND; |
1579 | } |
789 | } |
1580 | |
790 | |
1581 | void |
791 | void |
|
|
792 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
793 | PPCODE: |
|
|
794 | { |
|
|
795 | dREQ; |
|
|
796 | |
|
|
797 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
798 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
799 | req->sv1 = newSVsv (fh_or_path); |
|
|
800 | |
|
|
801 | if (SvPOK (req->sv1)) |
|
|
802 | { |
|
|
803 | req->type = EIO_UTIME; |
|
|
804 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
805 | } |
|
|
806 | else |
|
|
807 | { |
|
|
808 | req->type = EIO_FUTIME; |
|
|
809 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
810 | } |
|
|
811 | |
|
|
812 | REQ_SEND; |
|
|
813 | } |
|
|
814 | |
|
|
815 | void |
|
|
816 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
817 | PPCODE: |
|
|
818 | { |
|
|
819 | dREQ; |
|
|
820 | |
|
|
821 | req->sv1 = newSVsv (fh_or_path); |
|
|
822 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
823 | |
|
|
824 | if (SvPOK (req->sv1)) |
|
|
825 | { |
|
|
826 | req->type = EIO_TRUNCATE; |
|
|
827 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
828 | } |
|
|
829 | else |
|
|
830 | { |
|
|
831 | req->type = EIO_FTRUNCATE; |
|
|
832 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
833 | } |
|
|
834 | |
|
|
835 | REQ_SEND; |
|
|
836 | } |
|
|
837 | |
|
|
838 | void |
|
|
839 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
840 | ALIAS: |
|
|
841 | aio_chmod = EIO_CHMOD |
|
|
842 | aio_mkdir = EIO_MKDIR |
|
|
843 | PPCODE: |
|
|
844 | { |
|
|
845 | dREQ; |
|
|
846 | |
|
|
847 | req->int2 = mode; |
|
|
848 | req->sv1 = newSVsv (fh_or_path); |
|
|
849 | |
|
|
850 | if (SvPOK (req->sv1)) |
|
|
851 | { |
|
|
852 | req->type = ix; |
|
|
853 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
854 | } |
|
|
855 | else |
|
|
856 | { |
|
|
857 | req->type = EIO_FCHMOD; |
|
|
858 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
859 | } |
|
|
860 | |
|
|
861 | REQ_SEND; |
|
|
862 | } |
|
|
863 | |
|
|
864 | void |
|
|
865 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
866 | PPCODE: |
|
|
867 | { |
|
|
868 | dREQ; |
|
|
869 | |
|
|
870 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
871 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
872 | req->sv1 = newSVsv (fh_or_path); |
|
|
873 | |
|
|
874 | if (SvPOK (req->sv1)) |
|
|
875 | { |
|
|
876 | req->type = EIO_CHOWN; |
|
|
877 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
878 | } |
|
|
879 | else |
|
|
880 | { |
|
|
881 | req->type = EIO_FCHOWN; |
|
|
882 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
883 | } |
|
|
884 | |
|
|
885 | REQ_SEND; |
|
|
886 | } |
|
|
887 | |
|
|
888 | void |
1582 | aio_unlink (pathname,callback=&PL_sv_undef) |
889 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
1583 | SV8 * pathname |
|
|
1584 | SV * callback |
|
|
1585 | ALIAS: |
890 | ALIAS: |
1586 | aio_unlink = REQ_UNLINK |
891 | aio_unlink = EIO_UNLINK |
1587 | aio_rmdir = REQ_RMDIR |
892 | aio_rmdir = EIO_RMDIR |
1588 | aio_readdir = REQ_READDIR |
893 | aio_readdir = EIO_READDIR |
1589 | PPCODE: |
894 | PPCODE: |
1590 | { |
895 | { |
1591 | dREQ; |
896 | dREQ; |
1592 | |
897 | |
1593 | req->type = ix; |
898 | req->type = ix; |
… | |
… | |
1596 | |
901 | |
1597 | REQ_SEND; |
902 | REQ_SEND; |
1598 | } |
903 | } |
1599 | |
904 | |
1600 | void |
905 | void |
1601 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
906 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
1602 | SV8 * oldpath |
|
|
1603 | SV8 * newpath |
|
|
1604 | SV * callback |
|
|
1605 | ALIAS: |
907 | ALIAS: |
1606 | aio_link = REQ_LINK |
908 | aio_link = EIO_LINK |
1607 | aio_symlink = REQ_SYMLINK |
909 | aio_symlink = EIO_SYMLINK |
1608 | aio_rename = REQ_RENAME |
910 | aio_rename = EIO_RENAME |
1609 | PPCODE: |
911 | PPCODE: |
1610 | { |
912 | { |
1611 | dREQ; |
913 | dREQ; |
1612 | |
914 | |
1613 | req->type = ix; |
915 | req->type = ix; |
1614 | req->fh = newSVsv (oldpath); |
916 | req->sv1 = newSVsv (oldpath); |
1615 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1616 | req->sv1 = newSVsv (newpath); |
|
|
1617 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
917 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
918 | req->sv2 = newSVsv (newpath); |
|
|
919 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
1618 | |
920 | |
1619 | REQ_SEND; |
921 | REQ_SEND; |
1620 | } |
922 | } |
1621 | |
923 | |
1622 | void |
924 | void |
1623 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
925 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
1624 | SV8 * pathname |
|
|
1625 | SV * callback |
|
|
1626 | UV mode |
|
|
1627 | UV dev |
|
|
1628 | PPCODE: |
926 | PPCODE: |
1629 | { |
927 | { |
1630 | dREQ; |
928 | dREQ; |
1631 | |
929 | |
1632 | req->type = REQ_MKNOD; |
930 | req->type = EIO_MKNOD; |
1633 | req->sv1 = newSVsv (pathname); |
931 | req->sv1 = newSVsv (pathname); |
1634 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
932 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1635 | req->mode = (mode_t)mode; |
933 | req->int2 = (mode_t)mode; |
1636 | req->offs = dev; |
934 | req->offs = dev; |
1637 | |
935 | |
1638 | REQ_SEND; |
936 | REQ_SEND; |
1639 | } |
937 | } |
1640 | |
938 | |
1641 | void |
939 | void |
1642 | aio_busy (delay,callback=&PL_sv_undef) |
940 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
1643 | double delay |
|
|
1644 | SV * callback |
|
|
1645 | PPCODE: |
941 | PPCODE: |
1646 | { |
942 | { |
1647 | dREQ; |
943 | dREQ; |
1648 | |
944 | |
1649 | req->type = REQ_BUSY; |
945 | req->type = EIO_BUSY; |
1650 | req->int1 = delay < 0. ? 0 : delay; |
946 | req->nv1 = delay < 0. ? 0. : delay; |
1651 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
|
|
1652 | |
947 | |
1653 | REQ_SEND; |
948 | REQ_SEND; |
1654 | } |
949 | } |
1655 | |
950 | |
1656 | void |
951 | void |
1657 | aio_group (callback=&PL_sv_undef) |
952 | aio_group (SV *callback=&PL_sv_undef) |
1658 | SV * callback |
|
|
1659 | PROTOTYPE: ;$ |
953 | PROTOTYPE: ;$ |
1660 | PPCODE: |
954 | PPCODE: |
1661 | { |
955 | { |
1662 | dREQ; |
956 | dREQ; |
1663 | |
957 | |
1664 | req->type = REQ_GROUP; |
958 | req->type = EIO_GROUP; |
1665 | |
959 | |
1666 | req_send (req); |
960 | req_submit (req); |
1667 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
961 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1668 | } |
962 | } |
1669 | |
963 | |
1670 | void |
964 | void |
1671 | aio_nop (callback=&PL_sv_undef) |
965 | aio_nop (SV *callback=&PL_sv_undef) |
1672 | SV * callback |
966 | ALIAS: |
|
|
967 | aio_nop = EIO_NOP |
|
|
968 | aio_sync = EIO_SYNC |
1673 | PPCODE: |
969 | PPCODE: |
1674 | { |
970 | { |
1675 | dREQ; |
971 | dREQ; |
1676 | |
972 | |
1677 | req->type = REQ_NOP; |
973 | req->type = ix; |
1678 | |
974 | |
1679 | REQ_SEND; |
975 | REQ_SEND; |
1680 | } |
976 | } |
1681 | |
977 | |
1682 | int |
978 | int |
1683 | aioreq_pri (int pri = 0) |
979 | aioreq_pri (int pri = 0) |
1684 | PROTOTYPE: ;$ |
980 | PROTOTYPE: ;$ |
1685 | CODE: |
981 | CODE: |
1686 | RETVAL = next_pri - PRI_BIAS; |
982 | RETVAL = next_pri; |
1687 | if (items > 0) |
983 | if (items > 0) |
1688 | { |
984 | { |
1689 | if (pri < PRI_MIN) pri = PRI_MIN; |
985 | if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
1690 | if (pri > PRI_MAX) pri = PRI_MAX; |
986 | if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
1691 | next_pri = pri + PRI_BIAS; |
987 | next_pri = pri; |
1692 | } |
988 | } |
1693 | OUTPUT: |
989 | OUTPUT: |
1694 | RETVAL |
990 | RETVAL |
1695 | |
991 | |
1696 | void |
992 | void |
1697 | aioreq_nice (int nice = 0) |
993 | aioreq_nice (int nice = 0) |
1698 | CODE: |
994 | CODE: |
1699 | nice = next_pri - nice; |
995 | nice = next_pri - nice; |
1700 | if (nice < PRI_MIN) nice = PRI_MIN; |
996 | if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
1701 | if (nice > PRI_MAX) nice = PRI_MAX; |
997 | if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
1702 | next_pri = nice + PRI_BIAS; |
998 | next_pri = nice; |
1703 | |
999 | |
1704 | void |
1000 | void |
1705 | flush () |
1001 | flush () |
1706 | PROTOTYPE: |
1002 | PROTOTYPE: |
1707 | CODE: |
1003 | CODE: |
1708 | while (nreqs) |
1004 | while (eio_nreqs ()) |
1709 | { |
1005 | { |
1710 | poll_wait (); |
1006 | poll_wait (); |
1711 | poll_cb (); |
1007 | poll_cb (); |
1712 | } |
1008 | } |
1713 | |
1009 | |
… | |
… | |
1740 | poll_wait() |
1036 | poll_wait() |
1741 | PROTOTYPE: |
1037 | PROTOTYPE: |
1742 | CODE: |
1038 | CODE: |
1743 | poll_wait (); |
1039 | poll_wait (); |
1744 | |
1040 | |
1745 | void |
|
|
1746 | setsig (int signum = SIGIO) |
|
|
1747 | PROTOTYPE: ;$ |
|
|
1748 | CODE: |
|
|
1749 | { |
|
|
1750 | if (block_sig_level) |
|
|
1751 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1752 | |
|
|
1753 | LOCK (reslock); |
|
|
1754 | main_tid = pthread_self (); |
|
|
1755 | main_sig = signum; |
|
|
1756 | UNLOCK (reslock); |
|
|
1757 | |
|
|
1758 | if (main_sig && npending) |
|
|
1759 | pthread_kill (main_tid, main_sig); |
|
|
1760 | } |
|
|
1761 | |
|
|
1762 | void |
|
|
1763 | aio_block (SV *cb) |
|
|
1764 | PROTOTYPE: & |
|
|
1765 | PPCODE: |
|
|
1766 | { |
|
|
1767 | int count; |
|
|
1768 | |
|
|
1769 | block_sig (); |
|
|
1770 | PUSHMARK (SP); |
|
|
1771 | PUTBACK; |
|
|
1772 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1773 | SPAGAIN; |
|
|
1774 | unblock_sig (); |
|
|
1775 | |
|
|
1776 | if (SvTRUE (ERRSV)) |
|
|
1777 | croak (0); |
|
|
1778 | |
|
|
1779 | XSRETURN (count); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | int |
1041 | int |
1783 | nreqs() |
1042 | nreqs() |
1784 | PROTOTYPE: |
1043 | PROTOTYPE: |
1785 | CODE: |
1044 | CODE: |
1786 | RETVAL = nreqs; |
1045 | RETVAL = eio_nreqs (); |
1787 | OUTPUT: |
1046 | OUTPUT: |
1788 | RETVAL |
1047 | RETVAL |
1789 | |
1048 | |
1790 | int |
1049 | int |
1791 | nready() |
1050 | nready() |
1792 | PROTOTYPE: |
1051 | PROTOTYPE: |
1793 | CODE: |
1052 | CODE: |
1794 | RETVAL = get_nready (); |
1053 | RETVAL = eio_nready (); |
1795 | OUTPUT: |
1054 | OUTPUT: |
1796 | RETVAL |
1055 | RETVAL |
1797 | |
1056 | |
1798 | int |
1057 | int |
1799 | npending() |
1058 | npending() |
1800 | PROTOTYPE: |
1059 | PROTOTYPE: |
1801 | CODE: |
1060 | CODE: |
1802 | RETVAL = get_npending (); |
1061 | RETVAL = eio_npending (); |
1803 | OUTPUT: |
1062 | OUTPUT: |
1804 | RETVAL |
1063 | RETVAL |
1805 | |
1064 | |
1806 | int |
1065 | int |
1807 | nthreads() |
1066 | nthreads() |
1808 | PROTOTYPE: |
1067 | PROTOTYPE: |
1809 | CODE: |
1068 | CODE: |
1810 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
1069 | RETVAL = eio_nthreads (); |
1811 | RETVAL = started; |
|
|
1812 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1813 | OUTPUT: |
1070 | OUTPUT: |
1814 | RETVAL |
1071 | RETVAL |
1815 | |
1072 | |
|
|
1073 | void _on_next_submit (SV *cb) |
|
|
1074 | CODE: |
|
|
1075 | SvREFCNT_dec (on_next_submit); |
|
|
1076 | on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
1077 | |
1816 | PROTOTYPES: DISABLE |
1078 | PROTOTYPES: DISABLE |
1817 | |
1079 | |
1818 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1080 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1819 | |
1081 | |
1820 | void |
1082 | void |
1821 | cancel (aio_req_ornot req) |
1083 | cancel (aio_req_ornot req) |
1822 | CODE: |
1084 | CODE: |
1823 | req_cancel (req); |
1085 | eio_cancel (req); |
1824 | |
1086 | |
1825 | void |
1087 | void |
1826 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1088 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1827 | CODE: |
1089 | PPCODE: |
|
|
1090 | { |
|
|
1091 | if (GIMME_V != G_VOID) |
|
|
1092 | XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
|
|
1093 | |
|
|
1094 | if (items > 1) |
|
|
1095 | { |
|
|
1096 | SV *cb_cv = get_cb (callback); |
|
|
1097 | |
1828 | SvREFCNT_dec (req->callback); |
1098 | SvREFCNT_dec (req->callback); |
1829 | req->callback = newSVsv (callback); |
1099 | req->callback = SvREFCNT_inc (cb_cv); |
|
|
1100 | } |
|
|
1101 | } |
1830 | |
1102 | |
1831 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1103 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1832 | |
1104 | |
1833 | void |
1105 | void |
1834 | add (aio_req grp, ...) |
1106 | add (aio_req grp, ...) |
1835 | PPCODE: |
1107 | PPCODE: |
1836 | { |
1108 | { |
1837 | int i; |
1109 | int i; |
1838 | aio_req req; |
|
|
1839 | |
|
|
1840 | if (main_sig && !block_sig_level) |
|
|
1841 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1842 | |
1110 | |
1843 | if (grp->int1 == 2) |
1111 | if (grp->int1 == 2) |
1844 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1112 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1845 | |
1113 | |
1846 | for (i = 1; i < items; ++i ) |
1114 | for (i = 1; i < items; ++i ) |
1847 | { |
1115 | { |
|
|
1116 | aio_req req; |
|
|
1117 | |
1848 | if (GIMME_V != G_VOID) |
1118 | if (GIMME_V != G_VOID) |
1849 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1119 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1850 | |
1120 | |
1851 | req = SvAIO_REQ (ST (i)); |
1121 | req = SvAIO_REQ (ST (i)); |
1852 | |
1122 | |
1853 | if (req) |
1123 | if (req) |
1854 | { |
1124 | eio_grp_add (grp, req); |
1855 | ++grp->size; |
|
|
1856 | req->grp = grp; |
|
|
1857 | |
|
|
1858 | req->grp_prev = 0; |
|
|
1859 | req->grp_next = grp->grp_first; |
|
|
1860 | |
|
|
1861 | if (grp->grp_first) |
|
|
1862 | grp->grp_first->grp_prev = req; |
|
|
1863 | |
|
|
1864 | grp->grp_first = req; |
|
|
1865 | } |
|
|
1866 | } |
1125 | } |
1867 | } |
1126 | } |
1868 | |
1127 | |
1869 | void |
1128 | void |
1870 | cancel_subs (aio_req_ornot req) |
1129 | cancel_subs (aio_req_ornot req) |
… | |
… | |
1895 | grp->errorno = errorno; |
1154 | grp->errorno = errorno; |
1896 | |
1155 | |
1897 | void |
1156 | void |
1898 | limit (aio_req grp, int limit) |
1157 | limit (aio_req grp, int limit) |
1899 | CODE: |
1158 | CODE: |
1900 | grp->int2 = limit; |
1159 | eio_grp_limit (grp, limit); |
1901 | aio_grp_feed (grp); |
|
|
1902 | |
1160 | |
1903 | void |
1161 | void |
1904 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1162 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1905 | CODE: |
1163 | CODE: |
1906 | { |
1164 | { |
1907 | SvREFCNT_dec (grp->sv2); |
1165 | SvREFCNT_dec (grp->sv2); |
1908 | grp->sv2 = newSVsv (callback); |
1166 | grp->sv2 = newSVsv (callback); |
|
|
1167 | grp->feed = aio_grp_feed; |
1909 | |
1168 | |
1910 | if (grp->int2 <= 0) |
1169 | if (grp->int2 <= 0) |
1911 | grp->int2 = 2; |
1170 | grp->int2 = 2; |
1912 | |
1171 | |
1913 | aio_grp_feed (grp); |
1172 | eio_grp_limit (grp, grp->int2); |
1914 | } |
1173 | } |
1915 | |
1174 | |