1 | #define _REENTRANT 1 |
1 | #include "xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
9 | #include <stddef.h> |
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10 | #include <stdlib.h> |
13 | #include <errno.h> |
11 | #include <errno.h> |
14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
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16 | #include <sys/types.h> |
12 | #include <sys/types.h> |
17 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
18 | #include <limits.h> |
14 | #include <limits.h> |
19 | #include <unistd.h> |
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20 | #include <fcntl.h> |
15 | #include <fcntl.h> |
21 | #include <signal.h> |
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22 | #include <sched.h> |
16 | #include <sched.h> |
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17 | |
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18 | #ifdef _WIN32 |
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19 | |
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20 | # define SIGIO 0 |
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21 | typedef Direntry_t X_DIRENT; |
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22 | #undef malloc |
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23 | #undef free |
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24 | |
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25 | // perl overrides all those nice win32 functions |
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26 | # undef open |
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27 | # undef read |
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28 | # undef write |
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29 | # undef stat |
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30 | # undef fstat |
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31 | # define lstat stat |
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32 | # undef truncate |
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33 | # undef ftruncate |
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34 | # undef open |
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35 | # undef close |
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36 | # undef unlink |
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37 | # undef rmdir |
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38 | # undef rename |
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39 | # undef lseek |
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40 | |
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41 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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42 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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43 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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44 | # define symlink(a,b) (errno = ENOSYS, -1) |
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45 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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46 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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47 | # define truncate(a,b) (errno = ENOSYS, -1) |
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48 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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49 | # define fsync(fd) _commit (fd) |
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50 | # define opendir(fd) (errno = ENOSYS, 0) |
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51 | # define readdir(fd) (errno = ENOSYS, -1) |
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52 | # define closedir(fd) (errno = ENOSYS, -1) |
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53 | # define mkdir(a,b) mkdir (a) |
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54 | |
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55 | #else |
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56 | |
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57 | # include "autoconf/config.h" |
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58 | # include <sys/time.h> |
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59 | # include <sys/select.h> |
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60 | # include <unistd.h> |
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61 | # include <utime.h> |
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62 | # include <signal.h> |
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63 | typedef struct dirent X_DIRENT; |
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64 | |
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65 | #endif |
23 | |
66 | |
24 | #if HAVE_SENDFILE |
67 | #if HAVE_SENDFILE |
25 | # if __linux |
68 | # if __linux |
26 | # include <sys/sendfile.h> |
69 | # include <sys/sendfile.h> |
27 | # elif __freebsd |
70 | # elif __freebsd |
… | |
… | |
34 | # else |
77 | # else |
35 | # error sendfile support requested but not available |
78 | # error sendfile support requested but not available |
36 | # endif |
79 | # endif |
37 | #endif |
80 | #endif |
38 | |
81 | |
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82 | /* number of seconds after which idle threads exit */ |
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83 | #define IDLE_TIMEOUT 10 |
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84 | |
39 | /* used for struct dirent, AIX doesn't provide it */ |
85 | /* used for struct dirent, AIX doesn't provide it */ |
40 | #ifndef NAME_MAX |
86 | #ifndef NAME_MAX |
41 | # define NAME_MAX 4096 |
87 | # define NAME_MAX 4096 |
42 | #endif |
88 | #endif |
43 | |
89 | |
44 | #if __ia64 |
90 | /* buffer size for various temporary buffers */ |
45 | # define STACKSIZE 65536 |
91 | #define AIO_BUFSIZE 65536 |
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92 | |
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93 | /* use NV for 32 bit perls as it allows larger offsets */ |
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94 | #if IVSIZE >= 8 |
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95 | # define SvVAL64 SvIV |
46 | #else |
96 | #else |
47 | # define STACKSIZE 8192 |
97 | # define SvVAL64 SvNV |
48 | #endif |
98 | #endif |
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99 | |
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100 | #define dBUF \ |
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101 | char *aio_buf; \ |
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102 | X_LOCK (wrklock); \ |
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103 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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104 | X_UNLOCK (wrklock); \ |
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105 | if (!aio_buf) \ |
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106 | return -1; |
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107 | |
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108 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
49 | |
109 | |
50 | enum { |
110 | enum { |
51 | REQ_QUIT, |
111 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
112 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
113 | REQ_READ, REQ_WRITE, |
54 | REQ_SENDFILE, |
114 | REQ_READAHEAD, REQ_SENDFILE, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
115 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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116 | REQ_TRUNCATE, REQ_FTRUNCATE, |
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117 | REQ_UTIME, REQ_FUTIME, |
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118 | REQ_CHMOD, REQ_FCHMOD, |
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119 | REQ_CHOWN, REQ_FCHOWN, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
120 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
121 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
58 | REQ_READDIR, |
122 | REQ_MKNOD, REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
123 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
60 | REQ_SLEEP, |
124 | REQ_GROUP, REQ_NOP, |
61 | REQ_GROUP, |
125 | REQ_BUSY, |
62 | }; |
126 | }; |
63 | |
127 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
128 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
129 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
130 | |
67 | typedef struct aio_cb |
131 | typedef struct aio_cb |
68 | { |
132 | { |
69 | struct aio_cb *grp, *grp_prev, *grp_next; |
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70 | |
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71 | struct aio_cb *volatile next; |
133 | struct aio_cb *volatile next; |
72 | |
134 | |
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135 | SV *callback; |
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136 | SV *sv1, *sv2; |
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137 | void *ptr1, *ptr2; |
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138 | off_t offs; |
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139 | size_t size; |
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140 | ssize_t result; |
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141 | double nv1, nv2; |
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142 | |
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143 | STRLEN stroffset; |
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144 | int type; |
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145 | int int1, int2, int3; |
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146 | int errorno; |
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147 | mode_t mode; /* open */ |
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148 | |
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149 | unsigned char flags; |
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150 | unsigned char pri; |
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151 | |
73 | SV *self; /* the perl counterpart of this request, if any */ |
152 | SV *self; /* the perl counterpart of this request, if any */ |
74 | |
153 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
75 | SV *data, *callback; |
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76 | SV *fh, *fh2; |
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77 | void *dataptr, *data2ptr; |
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78 | Stat_t *statdata; |
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79 | off_t offset; |
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80 | size_t length; |
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81 | ssize_t result; |
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82 | |
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83 | int type; |
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84 | int fd, fd2; |
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85 | int errorno; |
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86 | STRLEN dataoffset; |
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87 | mode_t mode; /* open */ |
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88 | unsigned char cancelled; |
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89 | } aio_cb; |
154 | } aio_cb; |
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155 | |
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156 | enum { |
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157 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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158 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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159 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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160 | }; |
90 | |
161 | |
91 | typedef aio_cb *aio_req; |
162 | typedef aio_cb *aio_req; |
92 | typedef aio_cb *aio_req_ornot; |
163 | typedef aio_cb *aio_req_ornot; |
93 | |
164 | |
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165 | enum { |
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166 | PRI_MIN = -4, |
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167 | PRI_MAX = 4, |
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168 | |
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169 | DEFAULT_PRI = 0, |
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170 | PRI_BIAS = -PRI_MIN, |
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171 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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172 | }; |
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173 | |
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174 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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175 | |
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176 | static unsigned int max_poll_time = 0; |
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177 | static unsigned int max_poll_reqs = 0; |
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178 | |
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179 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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180 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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181 | { |
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182 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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183 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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184 | } |
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185 | |
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186 | static thread_t main_tid; |
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187 | static int main_sig; |
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188 | static int block_sig_level; |
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189 | |
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190 | void block_sig () |
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191 | { |
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192 | sigset_t ss; |
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193 | |
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194 | if (block_sig_level++) |
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195 | return; |
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196 | |
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197 | if (!main_sig) |
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198 | return; |
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199 | |
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200 | sigemptyset (&ss); |
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201 | sigaddset (&ss, main_sig); |
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202 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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203 | } |
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204 | |
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205 | void unblock_sig () |
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206 | { |
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207 | sigset_t ss; |
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208 | |
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209 | if (--block_sig_level) |
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210 | return; |
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211 | |
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212 | if (!main_sig) |
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213 | return; |
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214 | |
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215 | sigemptyset (&ss); |
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216 | sigaddset (&ss, main_sig); |
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217 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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218 | } |
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219 | |
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220 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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221 | |
94 | static int started, wanted; |
222 | static unsigned int started, idle, wanted; |
95 | static volatile int nreqs; |
223 | |
96 | static int max_outstanding = 1<<30; |
224 | /* worker threads management */ |
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225 | static mutex_t wrklock = X_MUTEX_INIT; |
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226 | |
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227 | typedef struct worker { |
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228 | /* locked by wrklock */ |
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229 | struct worker *prev, *next; |
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230 | |
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231 | thread_t tid; |
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232 | |
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233 | /* locked by reslock, reqlock or wrklock */ |
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234 | aio_req req; /* currently processed request */ |
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235 | void *dbuf; |
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236 | DIR *dirp; |
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237 | } worker; |
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238 | |
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239 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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240 | |
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241 | static void worker_clear (worker *wrk) |
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242 | { |
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243 | if (wrk->dirp) |
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244 | { |
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245 | closedir (wrk->dirp); |
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246 | wrk->dirp = 0; |
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247 | } |
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248 | |
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249 | if (wrk->dbuf) |
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250 | { |
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251 | free (wrk->dbuf); |
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252 | wrk->dbuf = 0; |
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253 | } |
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254 | } |
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255 | |
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256 | static void worker_free (worker *wrk) |
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257 | { |
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258 | wrk->next->prev = wrk->prev; |
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259 | wrk->prev->next = wrk->next; |
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260 | |
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261 | free (wrk); |
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262 | } |
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263 | |
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264 | static volatile unsigned int nreqs, nready, npending; |
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265 | static volatile unsigned int max_idle = 4; |
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266 | static volatile unsigned int max_outstanding = 0xffffffff; |
97 | static int respipe [2]; |
267 | static int respipe [2]; |
98 | |
268 | |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
269 | static mutex_t reslock = X_MUTEX_INIT; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
270 | static mutex_t reqlock = X_MUTEX_INIT; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
271 | static cond_t reqwait = X_COND_INIT; |
102 | |
272 | |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
273 | #if WORDACCESS_UNSAFE |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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105 | |
274 | |
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275 | static unsigned int get_nready () |
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276 | { |
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277 | unsigned int retval; |
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278 | |
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279 | X_LOCK (reqlock); |
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280 | retval = nready; |
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281 | X_UNLOCK (reqlock); |
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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_npending () |
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287 | { |
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288 | unsigned int retval; |
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289 | |
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290 | X_LOCK (reslock); |
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291 | retval = npending; |
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292 | X_UNLOCK (reslock); |
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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 | static unsigned int get_nthreads () |
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298 | { |
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299 | unsigned int retval; |
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300 | |
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301 | X_LOCK (wrklock); |
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302 | retval = started; |
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303 | X_UNLOCK (wrklock); |
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304 | |
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305 | return retval; |
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306 | } |
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307 | |
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308 | #else |
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309 | |
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310 | # define get_nready() nready |
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311 | # define get_npending() npending |
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312 | # define get_nthreads() started |
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313 | |
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314 | #endif |
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315 | |
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316 | /* |
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317 | * a somewhat faster data structure might be nice, but |
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318 | * with 8 priorities this actually needs <20 insns |
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319 | * per shift, the most expensive operation. |
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320 | */ |
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321 | typedef struct { |
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322 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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323 | int size; |
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324 | } reqq; |
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325 | |
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326 | static reqq req_queue; |
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327 | static reqq res_queue; |
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328 | |
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329 | int reqq_push (reqq *q, aio_req req) |
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330 | { |
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331 | int pri = req->pri; |
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332 | req->next = 0; |
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333 | |
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334 | if (q->qe[pri]) |
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335 | { |
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336 | q->qe[pri]->next = req; |
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337 | q->qe[pri] = req; |
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338 | } |
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339 | else |
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340 | q->qe[pri] = q->qs[pri] = req; |
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341 | |
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342 | return q->size++; |
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343 | } |
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344 | |
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345 | aio_req reqq_shift (reqq *q) |
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346 | { |
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347 | int pri; |
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348 | |
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349 | if (!q->size) |
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350 | return 0; |
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351 | |
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352 | --q->size; |
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353 | |
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354 | for (pri = NUM_PRI; pri--; ) |
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355 | { |
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356 | aio_req req = q->qs[pri]; |
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357 | |
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358 | if (req) |
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359 | { |
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360 | if (!(q->qs[pri] = req->next)) |
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361 | q->qe[pri] = 0; |
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362 | |
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363 | return req; |
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364 | } |
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365 | } |
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366 | |
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367 | abort (); |
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368 | } |
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369 | |
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370 | static int poll_cb (); |
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371 | static int req_invoke (aio_req req); |
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372 | static void req_destroy (aio_req req); |
106 | static void req_free (aio_req req); |
373 | static void req_cancel (aio_req req); |
107 | |
374 | |
108 | /* must be called at most once */ |
375 | /* must be called at most once */ |
109 | static SV *req_sv (aio_req req, const char *klass) |
376 | static SV *req_sv (aio_req req, const char *klass) |
110 | { |
377 | { |
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378 | if (!req->self) |
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379 | { |
111 | req->self = (SV *)newHV (); |
380 | req->self = (SV *)newHV (); |
112 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
381 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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382 | } |
113 | |
383 | |
114 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
384 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
115 | } |
385 | } |
116 | |
386 | |
117 | static aio_req SvAIO_REQ (SV *sv) |
387 | static aio_req SvAIO_REQ (SV *sv) |
118 | { |
388 | { |
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389 | MAGIC *mg; |
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390 | |
119 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
391 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
120 | croak ("object of class " AIO_REQ_KLASS " expected"); |
392 | croak ("object of class " AIO_REQ_KLASS " expected"); |
121 | |
393 | |
122 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
394 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
123 | |
395 | |
124 | return mg ? (aio_req)mg->mg_ptr : 0; |
396 | return mg ? (aio_req)mg->mg_ptr : 0; |
125 | } |
397 | } |
126 | |
398 | |
127 | static void poll_wait () |
399 | static void aio_grp_feed (aio_req grp) |
128 | { |
400 | { |
129 | if (nreqs && !ress) |
401 | block_sig (); |
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402 | |
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403 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
130 | { |
404 | { |
131 | fd_set rfd; |
405 | int old_len = grp->size; |
132 | FD_ZERO(&rfd); |
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133 | FD_SET(respipe [0], &rfd); |
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134 | |
406 | |
135 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
407 | if (grp->sv2 && SvOK (grp->sv2)) |
|
|
408 | { |
|
|
409 | dSP; |
|
|
410 | |
|
|
411 | ENTER; |
|
|
412 | SAVETMPS; |
|
|
413 | PUSHMARK (SP); |
|
|
414 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
415 | PUTBACK; |
|
|
416 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
|
|
417 | SPAGAIN; |
|
|
418 | FREETMPS; |
|
|
419 | LEAVE; |
|
|
420 | } |
|
|
421 | |
|
|
422 | /* stop if no progress has been made */ |
|
|
423 | if (old_len == grp->size) |
|
|
424 | { |
|
|
425 | SvREFCNT_dec (grp->sv2); |
|
|
426 | grp->sv2 = 0; |
|
|
427 | break; |
|
|
428 | } |
136 | } |
429 | } |
137 | } |
|
|
138 | |
430 | |
|
|
431 | unblock_sig (); |
|
|
432 | } |
|
|
433 | |
|
|
434 | static void aio_grp_dec (aio_req grp) |
|
|
435 | { |
|
|
436 | --grp->size; |
|
|
437 | |
|
|
438 | /* call feeder, if applicable */ |
|
|
439 | aio_grp_feed (grp); |
|
|
440 | |
|
|
441 | /* finish, if done */ |
|
|
442 | if (!grp->size && grp->int1) |
|
|
443 | { |
|
|
444 | block_sig (); |
|
|
445 | |
|
|
446 | if (!req_invoke (grp)) |
|
|
447 | { |
|
|
448 | req_destroy (grp); |
|
|
449 | unblock_sig (); |
|
|
450 | croak (0); |
|
|
451 | } |
|
|
452 | |
|
|
453 | req_destroy (grp); |
|
|
454 | unblock_sig (); |
|
|
455 | } |
|
|
456 | } |
|
|
457 | |
139 | static void req_invoke (aio_req req) |
458 | static int req_invoke (aio_req req) |
140 | { |
459 | { |
141 | dSP; |
460 | dSP; |
142 | int errorno = errno; |
|
|
143 | |
461 | |
144 | if (req->cancelled || !SvOK (req->callback)) |
462 | if (req->flags & FLAG_SV2_RO_OFF) |
145 | return; |
463 | SvREADONLY_off (req->sv2); |
146 | |
464 | |
147 | errno = req->errorno; |
465 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
148 | |
|
|
149 | ENTER; |
|
|
150 | PUSHMARK (SP); |
|
|
151 | EXTEND (SP, 1); |
|
|
152 | |
|
|
153 | switch (req->type) |
|
|
154 | { |
466 | { |
155 | case REQ_READDIR: |
467 | ENTER; |
|
|
468 | SAVETMPS; |
|
|
469 | PUSHMARK (SP); |
|
|
470 | EXTEND (SP, 1); |
|
|
471 | |
|
|
472 | switch (req->type) |
156 | { |
473 | { |
157 | SV *rv = &PL_sv_undef; |
474 | case REQ_READDIR: |
158 | |
|
|
159 | if (req->result >= 0) |
|
|
160 | { |
475 | { |
161 | char *buf = req->data2ptr; |
476 | SV *rv = &PL_sv_undef; |
162 | AV *av = newAV (); |
|
|
163 | |
477 | |
164 | while (req->result) |
478 | if (req->result >= 0) |
165 | { |
479 | { |
|
|
480 | int i; |
|
|
481 | char *buf = req->ptr2; |
|
|
482 | AV *av = newAV (); |
|
|
483 | |
|
|
484 | av_extend (av, req->result - 1); |
|
|
485 | |
|
|
486 | for (i = 0; i < req->result; ++i) |
|
|
487 | { |
166 | SV *sv = newSVpv (buf, 0); |
488 | SV *sv = newSVpv (buf, 0); |
167 | |
489 | |
168 | av_push (av, sv); |
490 | av_store (av, i, sv); |
169 | buf += SvCUR (sv) + 1; |
491 | buf += SvCUR (sv) + 1; |
170 | req->result--; |
492 | } |
|
|
493 | |
|
|
494 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
171 | } |
495 | } |
172 | |
496 | |
173 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
497 | PUSHs (rv); |
174 | } |
498 | } |
|
|
499 | break; |
175 | |
500 | |
|
|
501 | case REQ_OPEN: |
|
|
502 | { |
|
|
503 | /* convert fd to fh */ |
|
|
504 | SV *fh; |
|
|
505 | |
|
|
506 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
507 | PUTBACK; |
|
|
508 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
509 | SPAGAIN; |
|
|
510 | |
|
|
511 | fh = POPs; |
|
|
512 | PUSHMARK (SP); |
176 | PUSHs (rv); |
513 | XPUSHs (fh); |
|
|
514 | } |
|
|
515 | break; |
|
|
516 | |
|
|
517 | case REQ_GROUP: |
|
|
518 | req->int1 = 2; /* mark group as finished */ |
|
|
519 | |
|
|
520 | if (req->sv1) |
|
|
521 | { |
|
|
522 | int i; |
|
|
523 | AV *av = (AV *)req->sv1; |
|
|
524 | |
|
|
525 | EXTEND (SP, AvFILL (av) + 1); |
|
|
526 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
527 | PUSHs (*av_fetch (av, i, 0)); |
|
|
528 | } |
|
|
529 | break; |
|
|
530 | |
|
|
531 | case REQ_NOP: |
|
|
532 | case REQ_BUSY: |
|
|
533 | break; |
|
|
534 | |
|
|
535 | case REQ_READLINK: |
|
|
536 | if (req->result > 0) |
|
|
537 | { |
|
|
538 | SvCUR_set (req->sv2, req->result); |
|
|
539 | *SvEND (req->sv2) = 0; |
|
|
540 | PUSHs (req->sv2); |
|
|
541 | } |
|
|
542 | break; |
|
|
543 | |
|
|
544 | case REQ_STAT: |
|
|
545 | case REQ_LSTAT: |
|
|
546 | case REQ_FSTAT: |
|
|
547 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
548 | PL_laststatval = req->result; |
|
|
549 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
550 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
551 | break; |
|
|
552 | |
|
|
553 | case REQ_READ: |
|
|
554 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
555 | *SvEND (req->sv2) = 0; |
|
|
556 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
557 | break; |
|
|
558 | |
|
|
559 | default: |
|
|
560 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
561 | break; |
177 | } |
562 | } |
178 | break; |
|
|
179 | |
563 | |
180 | case REQ_OPEN: |
564 | errno = req->errorno; |
181 | { |
|
|
182 | /* convert fd to fh */ |
|
|
183 | SV *fh; |
|
|
184 | |
565 | |
185 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
186 | PUTBACK; |
566 | PUTBACK; |
187 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
567 | call_sv (req->callback, G_VOID | G_EVAL); |
188 | SPAGAIN; |
568 | SPAGAIN; |
189 | |
569 | |
190 | fh = SvREFCNT_inc (POPs); |
570 | FREETMPS; |
191 | |
571 | LEAVE; |
192 | PUSHMARK (SP); |
|
|
193 | XPUSHs (sv_2mortal (fh)); |
|
|
194 | } |
|
|
195 | break; |
|
|
196 | |
|
|
197 | case REQ_GROUP: |
|
|
198 | if (req->data) |
|
|
199 | { |
|
|
200 | int i; |
|
|
201 | AV *av = (AV *)req->data; |
|
|
202 | |
|
|
203 | EXTEND (SP, AvFILL (av) + 1); |
|
|
204 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
205 | PUSHs (*av_fetch (av, i, 0)); |
|
|
206 | } |
|
|
207 | break; |
|
|
208 | |
|
|
209 | case REQ_SLEEP: |
|
|
210 | break; |
|
|
211 | |
|
|
212 | default: |
|
|
213 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
214 | break; |
|
|
215 | } |
572 | } |
216 | |
573 | |
217 | |
|
|
218 | PUTBACK; |
|
|
219 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
220 | SPAGAIN; |
|
|
221 | |
|
|
222 | if (SvTRUE (ERRSV)) |
|
|
223 | { |
|
|
224 | req_free (req); |
|
|
225 | croak (0); |
|
|
226 | } |
|
|
227 | |
|
|
228 | LEAVE; |
|
|
229 | |
|
|
230 | errno = errorno; |
|
|
231 | } |
|
|
232 | |
|
|
233 | static void req_free (aio_req req) |
|
|
234 | { |
|
|
235 | if (req->grp) |
574 | if (req->grp) |
236 | { |
575 | { |
237 | aio_req grp = req->grp; |
576 | aio_req grp = req->grp; |
238 | |
577 | |
239 | /* unlink request */ |
578 | /* unlink request */ |
240 | req->grp_next->grp_prev = req->grp_prev; |
579 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
241 | req->grp_prev->grp_next = req->grp_next; |
580 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
242 | |
581 | |
243 | if (grp->grp_next == grp && grp->fd) |
582 | if (grp->grp_first == req) |
244 | { |
583 | grp->grp_first = req->grp_next; |
245 | req_invoke (grp); |
584 | |
246 | req_free (grp); |
585 | aio_grp_dec (grp); |
247 | } |
|
|
248 | } |
586 | } |
249 | |
587 | |
|
|
588 | return !SvTRUE (ERRSV); |
|
|
589 | } |
|
|
590 | |
|
|
591 | static void req_destroy (aio_req req) |
|
|
592 | { |
250 | if (req->self) |
593 | if (req->self) |
251 | { |
594 | { |
252 | sv_unmagic (req->self, PERL_MAGIC_ext); |
595 | sv_unmagic (req->self, PERL_MAGIC_ext); |
253 | SvREFCNT_dec (req->self); |
596 | SvREFCNT_dec (req->self); |
254 | } |
597 | } |
255 | |
598 | |
256 | if (req->data) |
|
|
257 | SvREFCNT_dec (req->data); |
|
|
258 | |
|
|
259 | if (req->fh) |
|
|
260 | SvREFCNT_dec (req->fh); |
599 | SvREFCNT_dec (req->sv1); |
261 | |
|
|
262 | if (req->fh2) |
|
|
263 | SvREFCNT_dec (req->fh2); |
600 | SvREFCNT_dec (req->sv2); |
264 | |
|
|
265 | if (req->statdata) |
|
|
266 | Safefree (req->statdata); |
|
|
267 | |
|
|
268 | if (req->callback) |
|
|
269 | SvREFCNT_dec (req->callback); |
601 | SvREFCNT_dec (req->callback); |
270 | |
602 | |
271 | if (req->type == REQ_READDIR && req->result >= 0) |
603 | if (req->flags & FLAG_PTR2_FREE) |
272 | free (req->data2ptr); |
604 | free (req->ptr2); |
273 | |
605 | |
274 | Safefree (req); |
606 | Safefree (req); |
275 | } |
607 | } |
276 | |
608 | |
|
|
609 | static void req_cancel_subs (aio_req grp) |
|
|
610 | { |
|
|
611 | aio_req sub; |
|
|
612 | |
|
|
613 | if (grp->type != REQ_GROUP) |
|
|
614 | return; |
|
|
615 | |
|
|
616 | SvREFCNT_dec (grp->sv2); |
|
|
617 | grp->sv2 = 0; |
|
|
618 | |
|
|
619 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
620 | req_cancel (sub); |
|
|
621 | } |
|
|
622 | |
277 | static void req_cancel (aio_req req) |
623 | static void req_cancel (aio_req req) |
278 | { |
624 | { |
279 | req->cancelled = 1; |
625 | req->flags |= FLAG_CANCELLED; |
280 | |
626 | |
281 | if (req->type == REQ_GROUP) |
627 | req_cancel_subs (req); |
|
|
628 | } |
|
|
629 | |
|
|
630 | X_THREAD_PROC (aio_proc); |
|
|
631 | |
|
|
632 | static void start_thread (void) |
|
|
633 | { |
|
|
634 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
635 | |
|
|
636 | if (!wrk) |
|
|
637 | croak ("unable to allocate worker thread data"); |
|
|
638 | |
|
|
639 | X_LOCK (wrklock); |
|
|
640 | |
|
|
641 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
282 | { |
642 | { |
283 | aio_req sub; |
643 | wrk->prev = &wrk_first; |
|
|
644 | wrk->next = wrk_first.next; |
|
|
645 | wrk_first.next->prev = wrk; |
|
|
646 | wrk_first.next = wrk; |
|
|
647 | ++started; |
|
|
648 | } |
|
|
649 | else |
|
|
650 | free (wrk); |
284 | |
651 | |
285 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
652 | X_UNLOCK (wrklock); |
286 | req_cancel (sub); |
653 | } |
|
|
654 | |
|
|
655 | static void maybe_start_thread () |
|
|
656 | { |
|
|
657 | if (get_nthreads () >= wanted) |
|
|
658 | return; |
|
|
659 | |
|
|
660 | /* todo: maybe use idle here, but might be less exact */ |
|
|
661 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
662 | return; |
|
|
663 | |
|
|
664 | start_thread (); |
|
|
665 | } |
|
|
666 | |
|
|
667 | static void req_send (aio_req req) |
|
|
668 | { |
|
|
669 | block_sig (); |
|
|
670 | |
|
|
671 | ++nreqs; |
|
|
672 | |
|
|
673 | X_LOCK (reqlock); |
|
|
674 | ++nready; |
|
|
675 | reqq_push (&req_queue, req); |
|
|
676 | X_COND_SIGNAL (reqwait); |
|
|
677 | X_UNLOCK (reqlock); |
|
|
678 | |
|
|
679 | unblock_sig (); |
|
|
680 | |
|
|
681 | maybe_start_thread (); |
|
|
682 | } |
|
|
683 | |
|
|
684 | static void end_thread (void) |
|
|
685 | { |
|
|
686 | aio_req req; |
|
|
687 | |
|
|
688 | Newz (0, req, 1, aio_cb); |
|
|
689 | |
|
|
690 | req->type = REQ_QUIT; |
|
|
691 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
692 | |
|
|
693 | X_LOCK (reqlock); |
|
|
694 | reqq_push (&req_queue, req); |
|
|
695 | X_COND_SIGNAL (reqwait); |
|
|
696 | X_UNLOCK (reqlock); |
|
|
697 | |
|
|
698 | X_LOCK (wrklock); |
|
|
699 | --started; |
|
|
700 | X_UNLOCK (wrklock); |
|
|
701 | } |
|
|
702 | |
|
|
703 | static void set_max_idle (int nthreads) |
|
|
704 | { |
|
|
705 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
706 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
707 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
708 | } |
|
|
709 | |
|
|
710 | static void min_parallel (int nthreads) |
|
|
711 | { |
|
|
712 | if (wanted < nthreads) |
|
|
713 | wanted = nthreads; |
|
|
714 | } |
|
|
715 | |
|
|
716 | static void max_parallel (int nthreads) |
|
|
717 | { |
|
|
718 | if (wanted > nthreads) |
|
|
719 | wanted = nthreads; |
|
|
720 | |
|
|
721 | while (started > wanted) |
|
|
722 | end_thread (); |
|
|
723 | } |
|
|
724 | |
|
|
725 | static void poll_wait () |
|
|
726 | { |
|
|
727 | fd_set rfd; |
|
|
728 | |
|
|
729 | while (nreqs) |
|
|
730 | { |
|
|
731 | int size; |
|
|
732 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
733 | size = res_queue.size; |
|
|
734 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
735 | |
|
|
736 | if (size) |
|
|
737 | return; |
|
|
738 | |
|
|
739 | maybe_start_thread (); |
|
|
740 | |
|
|
741 | FD_ZERO(&rfd); |
|
|
742 | FD_SET(respipe [0], &rfd); |
|
|
743 | |
|
|
744 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
287 | } |
745 | } |
288 | } |
746 | } |
289 | |
747 | |
290 | static int poll_cb () |
748 | static int poll_cb () |
291 | { |
749 | { |
292 | dSP; |
750 | dSP; |
293 | int count = 0; |
751 | int count = 0; |
|
|
752 | int maxreqs = max_poll_reqs; |
294 | int do_croak = 0; |
753 | int do_croak = 0; |
|
|
754 | struct timeval tv_start, tv_now; |
295 | aio_req req; |
755 | aio_req req; |
|
|
756 | |
|
|
757 | if (max_poll_time) |
|
|
758 | gettimeofday (&tv_start, 0); |
|
|
759 | |
|
|
760 | block_sig (); |
296 | |
761 | |
297 | for (;;) |
762 | for (;;) |
298 | { |
763 | { |
299 | pthread_mutex_lock (&reslock); |
764 | for (;;) |
300 | req = ress; |
|
|
301 | |
|
|
302 | if (req) |
|
|
303 | { |
765 | { |
304 | ress = req->next; |
766 | maybe_start_thread (); |
305 | |
767 | |
|
|
768 | X_LOCK (reslock); |
|
|
769 | req = reqq_shift (&res_queue); |
|
|
770 | |
306 | if (!ress) |
771 | if (req) |
307 | { |
772 | { |
|
|
773 | --npending; |
|
|
774 | |
|
|
775 | if (!res_queue.size) |
|
|
776 | { |
308 | /* read any signals sent by the worker threads */ |
777 | /* read any signals sent by the worker threads */ |
309 | char buf [32]; |
778 | char buf [4]; |
310 | while (read (respipe [0], buf, 32) == 32) |
779 | while (read (respipe [0], buf, 4) == 4) |
|
|
780 | ; |
311 | ; |
781 | } |
|
|
782 | } |
312 | |
783 | |
|
|
784 | X_UNLOCK (reslock); |
|
|
785 | |
|
|
786 | if (!req) |
|
|
787 | break; |
|
|
788 | |
|
|
789 | --nreqs; |
|
|
790 | |
|
|
791 | if (req->type == REQ_GROUP && req->size) |
|
|
792 | { |
|
|
793 | req->int1 = 1; /* mark request as delayed */ |
|
|
794 | continue; |
|
|
795 | } |
|
|
796 | else |
|
|
797 | { |
|
|
798 | if (!req_invoke (req)) |
|
|
799 | { |
|
|
800 | req_destroy (req); |
|
|
801 | unblock_sig (); |
|
|
802 | croak (0); |
|
|
803 | } |
|
|
804 | |
|
|
805 | count++; |
|
|
806 | } |
|
|
807 | |
|
|
808 | req_destroy (req); |
|
|
809 | |
|
|
810 | if (maxreqs && !--maxreqs) |
|
|
811 | break; |
|
|
812 | |
|
|
813 | if (max_poll_time) |
|
|
814 | { |
|
|
815 | gettimeofday (&tv_now, 0); |
|
|
816 | |
|
|
817 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
313 | rese = 0; |
818 | break; |
314 | } |
819 | } |
315 | } |
820 | } |
316 | |
821 | |
317 | pthread_mutex_unlock (&reslock); |
822 | if (nreqs <= max_outstanding) |
318 | |
|
|
319 | if (!req) |
|
|
320 | break; |
823 | break; |
321 | |
824 | |
322 | nreqs--; |
825 | poll_wait (); |
323 | |
826 | |
324 | if (req->type == REQ_QUIT) |
827 | ++maxreqs; |
325 | started--; |
|
|
326 | else if (req->type == REQ_GROUP && req->grp_next != req) |
|
|
327 | { |
|
|
328 | req->fd = 1; /* mark request as delayed */ |
|
|
329 | continue; |
|
|
330 | } |
|
|
331 | else |
|
|
332 | { |
|
|
333 | if (req->type == REQ_READ) |
|
|
334 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
335 | |
|
|
336 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
337 | SvREADONLY_off (req->data); |
|
|
338 | |
|
|
339 | if (req->statdata) |
|
|
340 | { |
|
|
341 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
342 | PL_laststatval = req->result; |
|
|
343 | PL_statcache = *(req->statdata); |
|
|
344 | } |
|
|
345 | |
|
|
346 | req_invoke (req); |
|
|
347 | |
|
|
348 | count++; |
|
|
349 | } |
|
|
350 | |
|
|
351 | req_free (req); |
|
|
352 | } |
828 | } |
353 | |
829 | |
|
|
830 | unblock_sig (); |
354 | return count; |
831 | return count; |
355 | } |
|
|
356 | |
|
|
357 | static void *aio_proc(void *arg); |
|
|
358 | |
|
|
359 | static void start_thread (void) |
|
|
360 | { |
|
|
361 | sigset_t fullsigset, oldsigset; |
|
|
362 | pthread_t tid; |
|
|
363 | pthread_attr_t attr; |
|
|
364 | |
|
|
365 | pthread_attr_init (&attr); |
|
|
366 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
367 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
368 | |
|
|
369 | sigfillset (&fullsigset); |
|
|
370 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
371 | |
|
|
372 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
373 | started++; |
|
|
374 | |
|
|
375 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
376 | } |
|
|
377 | |
|
|
378 | static void req_send (aio_req req) |
|
|
379 | { |
|
|
380 | while (started < wanted && nreqs >= started) |
|
|
381 | start_thread (); |
|
|
382 | |
|
|
383 | nreqs++; |
|
|
384 | |
|
|
385 | pthread_mutex_lock (&reqlock); |
|
|
386 | |
|
|
387 | req->next = 0; |
|
|
388 | |
|
|
389 | if (reqe) |
|
|
390 | { |
|
|
391 | reqe->next = req; |
|
|
392 | reqe = req; |
|
|
393 | } |
|
|
394 | else |
|
|
395 | reqe = reqs = req; |
|
|
396 | |
|
|
397 | pthread_cond_signal (&reqwait); |
|
|
398 | pthread_mutex_unlock (&reqlock); |
|
|
399 | |
|
|
400 | if (nreqs > max_outstanding) |
|
|
401 | for (;;) |
|
|
402 | { |
|
|
403 | poll_cb (); |
|
|
404 | |
|
|
405 | if (nreqs <= max_outstanding) |
|
|
406 | break; |
|
|
407 | |
|
|
408 | poll_wait (); |
|
|
409 | } |
|
|
410 | } |
|
|
411 | |
|
|
412 | static void end_thread (void) |
|
|
413 | { |
|
|
414 | aio_req req; |
|
|
415 | Newz (0, req, 1, aio_cb); |
|
|
416 | req->type = REQ_QUIT; |
|
|
417 | |
|
|
418 | req_send (req); |
|
|
419 | } |
|
|
420 | |
|
|
421 | static void min_parallel (int nthreads) |
|
|
422 | { |
|
|
423 | if (wanted < nthreads) |
|
|
424 | wanted = nthreads; |
|
|
425 | } |
|
|
426 | |
|
|
427 | static void max_parallel (int nthreads) |
|
|
428 | { |
|
|
429 | int cur = started; |
|
|
430 | |
|
|
431 | if (wanted > nthreads) |
|
|
432 | wanted = nthreads; |
|
|
433 | |
|
|
434 | while (cur > wanted) |
|
|
435 | { |
|
|
436 | end_thread (); |
|
|
437 | cur--; |
|
|
438 | } |
|
|
439 | |
|
|
440 | while (started > wanted) |
|
|
441 | { |
|
|
442 | poll_wait (); |
|
|
443 | poll_cb (); |
|
|
444 | } |
|
|
445 | } |
|
|
446 | |
|
|
447 | static void create_pipe () |
|
|
448 | { |
|
|
449 | if (pipe (respipe)) |
|
|
450 | croak ("unable to initialize result pipe"); |
|
|
451 | |
|
|
452 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
453 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
454 | |
|
|
455 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
456 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
457 | } |
832 | } |
458 | |
833 | |
459 | /*****************************************************************************/ |
834 | /*****************************************************************************/ |
460 | /* work around various missing functions */ |
835 | /* work around various missing functions */ |
461 | |
836 | |
… | |
… | |
466 | /* |
841 | /* |
467 | * make our pread/pwrite safe against themselves, but not against |
842 | * make our pread/pwrite safe against themselves, but not against |
468 | * normal read/write by using a mutex. slows down execution a lot, |
843 | * normal read/write by using a mutex. slows down execution a lot, |
469 | * but that's your problem, not mine. |
844 | * but that's your problem, not mine. |
470 | */ |
845 | */ |
471 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
846 | static mutex_t preadwritelock = X_MUTEX_INIT; |
472 | |
847 | |
473 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
848 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
474 | { |
849 | { |
475 | ssize_t res; |
850 | ssize_t res; |
476 | off_t ooffset; |
851 | off_t ooffset; |
477 | |
852 | |
478 | pthread_mutex_lock (&preadwritelock); |
853 | X_LOCK (preadwritelock); |
479 | ooffset = lseek (fd, 0, SEEK_CUR); |
854 | ooffset = lseek (fd, 0, SEEK_CUR); |
480 | lseek (fd, offset, SEEK_SET); |
855 | lseek (fd, offset, SEEK_SET); |
481 | res = read (fd, buf, count); |
856 | res = read (fd, buf, count); |
482 | lseek (fd, ooffset, SEEK_SET); |
857 | lseek (fd, ooffset, SEEK_SET); |
483 | pthread_mutex_unlock (&preadwritelock); |
858 | X_UNLOCK (preadwritelock); |
484 | |
859 | |
485 | return res; |
860 | return res; |
486 | } |
861 | } |
487 | |
862 | |
488 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
863 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
489 | { |
864 | { |
490 | ssize_t res; |
865 | ssize_t res; |
491 | off_t ooffset; |
866 | off_t ooffset; |
492 | |
867 | |
493 | pthread_mutex_lock (&preadwritelock); |
868 | X_LOCK (preadwritelock); |
494 | ooffset = lseek (fd, 0, SEEK_CUR); |
869 | ooffset = lseek (fd, 0, SEEK_CUR); |
495 | lseek (fd, offset, SEEK_SET); |
870 | lseek (fd, offset, SEEK_SET); |
496 | res = write (fd, buf, count); |
871 | res = write (fd, buf, count); |
497 | lseek (fd, offset, SEEK_SET); |
872 | lseek (fd, offset, SEEK_SET); |
498 | pthread_mutex_unlock (&preadwritelock); |
873 | X_UNLOCK (preadwritelock); |
499 | |
874 | |
500 | return res; |
875 | return res; |
501 | } |
876 | } |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #ifndef HAVE_FUTIMES |
|
|
880 | |
|
|
881 | # define utimes(path,times) aio_utimes (path, times) |
|
|
882 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
883 | |
|
|
884 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
885 | { |
|
|
886 | if (times) |
|
|
887 | { |
|
|
888 | struct utimbuf buf; |
|
|
889 | |
|
|
890 | buf.actime = times[0].tv_sec; |
|
|
891 | buf.modtime = times[1].tv_sec; |
|
|
892 | |
|
|
893 | return utime (filename, &buf); |
|
|
894 | } |
|
|
895 | else |
|
|
896 | return utime (filename, 0); |
|
|
897 | } |
|
|
898 | |
|
|
899 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
900 | { |
|
|
901 | errno = ENOSYS; |
|
|
902 | return -1; |
|
|
903 | } |
|
|
904 | |
502 | #endif |
905 | #endif |
503 | |
906 | |
504 | #if !HAVE_FDATASYNC |
907 | #if !HAVE_FDATASYNC |
505 | # define fdatasync fsync |
908 | # define fdatasync fsync |
506 | #endif |
909 | #endif |
507 | |
910 | |
508 | #if !HAVE_READAHEAD |
911 | #if !HAVE_READAHEAD |
509 | # define readahead aio_readahead |
912 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
510 | |
913 | |
511 | static ssize_t readahead (int fd, off_t offset, size_t count) |
914 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
512 | { |
915 | { |
513 | char readahead_buf[4096]; |
916 | size_t todo = count; |
|
|
917 | dBUF; |
514 | |
918 | |
515 | while (count > 0) |
919 | while (todo > 0) |
516 | { |
920 | { |
517 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
921 | size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE; |
518 | |
922 | |
519 | pread (fd, readahead_buf, len, offset); |
923 | pread (fd, aio_buf, len, offset); |
520 | offset += len; |
924 | offset += len; |
521 | count -= len; |
925 | todo -= len; |
522 | } |
926 | } |
523 | |
927 | |
524 | errno = 0; |
928 | errno = 0; |
|
|
929 | return count; |
525 | } |
930 | } |
|
|
931 | |
526 | #endif |
932 | #endif |
527 | |
933 | |
528 | #if !HAVE_READDIR_R |
934 | #if !HAVE_READDIR_R |
529 | # define readdir_r aio_readdir_r |
935 | # define readdir_r aio_readdir_r |
530 | |
936 | |
531 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
937 | static mutex_t readdirlock = X_MUTEX_INIT; |
532 | |
938 | |
533 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
939 | static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) |
534 | { |
940 | { |
535 | struct dirent *e; |
941 | X_DIRENT *e; |
536 | int errorno; |
942 | int errorno; |
537 | |
943 | |
538 | pthread_mutex_lock (&readdirlock); |
944 | X_LOCK (readdirlock); |
539 | |
945 | |
540 | e = readdir (dirp); |
946 | e = readdir (dirp); |
541 | errorno = errno; |
947 | errorno = errno; |
542 | |
948 | |
543 | if (e) |
949 | if (e) |
… | |
… | |
546 | strcpy (ent->d_name, e->d_name); |
952 | strcpy (ent->d_name, e->d_name); |
547 | } |
953 | } |
548 | else |
954 | else |
549 | *res = 0; |
955 | *res = 0; |
550 | |
956 | |
551 | pthread_mutex_unlock (&readdirlock); |
957 | X_UNLOCK (readdirlock); |
552 | |
958 | |
553 | errno = errorno; |
959 | errno = errorno; |
554 | return e ? 0 : -1; |
960 | return e ? 0 : -1; |
555 | } |
961 | } |
556 | #endif |
962 | #endif |
557 | |
963 | |
558 | /* sendfile always needs emulation */ |
964 | /* sendfile always needs emulation */ |
559 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
965 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
560 | { |
966 | { |
561 | ssize_t res; |
967 | ssize_t res; |
562 | |
968 | |
563 | if (!count) |
969 | if (!count) |
564 | return 0; |
970 | return 0; |
… | |
… | |
575 | { |
981 | { |
576 | off_t sbytes; |
982 | off_t sbytes; |
577 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
983 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
578 | |
984 | |
579 | if (res < 0 && sbytes) |
985 | if (res < 0 && sbytes) |
580 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
986 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
581 | res = sbytes; |
987 | res = sbytes; |
582 | } |
988 | } |
583 | |
989 | |
584 | # elif __hpux |
990 | # elif __hpux |
585 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
991 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
613 | #endif |
1019 | #endif |
614 | ) |
1020 | ) |
615 | ) |
1021 | ) |
616 | { |
1022 | { |
617 | /* emulate sendfile. this is a major pain in the ass */ |
1023 | /* emulate sendfile. this is a major pain in the ass */ |
618 | char buf[4096]; |
1024 | dBUF; |
|
|
1025 | |
619 | res = 0; |
1026 | res = 0; |
620 | |
1027 | |
621 | while (count) |
1028 | while (count) |
622 | { |
1029 | { |
623 | ssize_t cnt; |
1030 | ssize_t cnt; |
624 | |
1031 | |
625 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
1032 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
626 | |
1033 | |
627 | if (cnt <= 0) |
1034 | if (cnt <= 0) |
628 | { |
1035 | { |
629 | if (cnt && !res) res = -1; |
1036 | if (cnt && !res) res = -1; |
630 | break; |
1037 | break; |
631 | } |
1038 | } |
632 | |
1039 | |
633 | cnt = write (ofd, buf, cnt); |
1040 | cnt = write (ofd, aio_buf, cnt); |
634 | |
1041 | |
635 | if (cnt <= 0) |
1042 | if (cnt <= 0) |
636 | { |
1043 | { |
637 | if (cnt && !res) res = -1; |
1044 | if (cnt && !res) res = -1; |
638 | break; |
1045 | break; |
… | |
… | |
646 | |
1053 | |
647 | return res; |
1054 | return res; |
648 | } |
1055 | } |
649 | |
1056 | |
650 | /* read a full directory */ |
1057 | /* read a full directory */ |
651 | static int scandir_ (const char *path, void **namesp) |
1058 | static void scandir_ (aio_req req, worker *self) |
652 | { |
1059 | { |
653 | DIR *dirp = opendir (path); |
1060 | DIR *dirp; |
654 | union |
1061 | union |
655 | { |
1062 | { |
656 | struct dirent d; |
1063 | X_DIRENT d; |
657 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
1064 | char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1]; |
658 | } u; |
1065 | } *u; |
659 | struct dirent *entp; |
1066 | X_DIRENT *entp; |
660 | char *name, *names; |
1067 | char *name, *names; |
661 | int memlen = 4096; |
1068 | int memlen = 4096; |
662 | int memofs = 0; |
1069 | int memofs = 0; |
663 | int res = 0; |
1070 | int res = 0; |
664 | int errorno; |
|
|
665 | |
1071 | |
666 | if (!dirp) |
1072 | X_LOCK (wrklock); |
667 | return -1; |
1073 | self->dirp = dirp = opendir (req->ptr1); |
668 | |
1074 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1075 | req->flags |= FLAG_PTR2_FREE; |
669 | names = malloc (memlen); |
1076 | req->ptr2 = names = malloc (memlen); |
|
|
1077 | X_UNLOCK (wrklock); |
|
|
1078 | |
|
|
1079 | if (dirp && u && names) |
|
|
1080 | for (;;) |
|
|
1081 | { |
|
|
1082 | errno = 0; |
|
|
1083 | readdir_r (dirp, &u->d, &entp); |
|
|
1084 | |
|
|
1085 | if (!entp) |
|
|
1086 | break; |
|
|
1087 | |
|
|
1088 | name = entp->d_name; |
|
|
1089 | |
|
|
1090 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1091 | { |
|
|
1092 | int len = strlen (name) + 1; |
|
|
1093 | |
|
|
1094 | res++; |
|
|
1095 | |
|
|
1096 | while (memofs + len > memlen) |
|
|
1097 | { |
|
|
1098 | memlen *= 2; |
|
|
1099 | X_LOCK (wrklock); |
|
|
1100 | req->ptr2 = names = realloc (names, memlen); |
|
|
1101 | X_UNLOCK (wrklock); |
|
|
1102 | |
|
|
1103 | if (!names) |
|
|
1104 | break; |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | memcpy (names + memofs, name, len); |
|
|
1108 | memofs += len; |
|
|
1109 | } |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | if (errno) |
|
|
1113 | res = -1; |
|
|
1114 | |
|
|
1115 | req->result = res; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | /*****************************************************************************/ |
|
|
1119 | |
|
|
1120 | X_THREAD_PROC (aio_proc) |
|
|
1121 | { |
|
|
1122 | {//D |
|
|
1123 | aio_req req; |
|
|
1124 | struct timespec ts; |
|
|
1125 | worker *self = (worker *)thr_arg; |
|
|
1126 | |
|
|
1127 | /* try to distribute timeouts somewhat randomly */ |
|
|
1128 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
670 | |
1129 | |
671 | for (;;) |
1130 | for (;;) |
672 | { |
1131 | { |
673 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1132 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
674 | |
1133 | |
675 | if (!entp) |
1134 | X_LOCK (reqlock); |
676 | break; |
|
|
677 | |
|
|
678 | name = entp->d_name; |
|
|
679 | |
|
|
680 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
681 | { |
|
|
682 | int len = strlen (name) + 1; |
|
|
683 | |
|
|
684 | res++; |
|
|
685 | |
|
|
686 | while (memofs + len > memlen) |
|
|
687 | { |
|
|
688 | memlen *= 2; |
|
|
689 | names = realloc (names, memlen); |
|
|
690 | if (!names) |
|
|
691 | break; |
|
|
692 | } |
|
|
693 | |
|
|
694 | memcpy (names + memofs, name, len); |
|
|
695 | memofs += len; |
|
|
696 | } |
|
|
697 | } |
|
|
698 | |
|
|
699 | errorno = errno; |
|
|
700 | closedir (dirp); |
|
|
701 | |
|
|
702 | if (errorno) |
|
|
703 | { |
|
|
704 | free (names); |
|
|
705 | errno = errorno; |
|
|
706 | res = -1; |
|
|
707 | } |
|
|
708 | |
|
|
709 | *namesp = (void *)names; |
|
|
710 | return res; |
|
|
711 | } |
|
|
712 | |
|
|
713 | /*****************************************************************************/ |
|
|
714 | |
|
|
715 | static void *aio_proc (void *thr_arg) |
|
|
716 | { |
|
|
717 | aio_req req; |
|
|
718 | int type; |
|
|
719 | |
|
|
720 | do |
|
|
721 | { |
|
|
722 | pthread_mutex_lock (&reqlock); |
|
|
723 | |
1135 | |
724 | for (;;) |
1136 | for (;;) |
725 | { |
1137 | { |
726 | req = reqs; |
1138 | self->req = req = reqq_shift (&req_queue); |
727 | |
|
|
728 | if (reqs) |
|
|
729 | { |
|
|
730 | reqs = reqs->next; |
|
|
731 | if (!reqs) reqe = 0; |
|
|
732 | } |
|
|
733 | |
1139 | |
734 | if (req) |
1140 | if (req) |
735 | break; |
1141 | break; |
736 | |
1142 | |
737 | pthread_cond_wait (&reqwait, &reqlock); |
1143 | ++idle; |
|
|
1144 | |
|
|
1145 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1146 | == ETIMEDOUT) |
|
|
1147 | { |
|
|
1148 | if (idle > max_idle) |
|
|
1149 | { |
|
|
1150 | --idle; |
|
|
1151 | X_UNLOCK (reqlock); |
|
|
1152 | X_LOCK (wrklock); |
|
|
1153 | --started; |
|
|
1154 | X_UNLOCK (wrklock); |
|
|
1155 | goto quit; |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1159 | X_COND_WAIT (reqwait, reqlock); |
|
|
1160 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1161 | } |
|
|
1162 | |
|
|
1163 | --idle; |
738 | } |
1164 | } |
739 | |
1165 | |
740 | pthread_mutex_unlock (&reqlock); |
1166 | --nready; |
|
|
1167 | |
|
|
1168 | X_UNLOCK (reqlock); |
741 | |
1169 | |
742 | errno = 0; /* strictly unnecessary */ |
1170 | errno = 0; /* strictly unnecessary */ |
743 | |
1171 | |
744 | if (!req->cancelled) |
1172 | if (!(req->flags & FLAG_CANCELLED)) |
745 | switch (req->type) |
1173 | switch (req->type) |
746 | { |
1174 | { |
747 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1175 | case REQ_READ: req->result = req->offs >= 0 |
748 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1176 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1177 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1178 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1179 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1180 | : write (req->int1, req->ptr1, req->size); break; |
749 | |
1181 | |
750 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1182 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
751 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1183 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
752 | |
1184 | |
753 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1185 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
754 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1186 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
755 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1187 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
756 | |
1188 | |
|
|
1189 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1190 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1191 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1192 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1193 | case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1194 | case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1195 | |
757 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1196 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
758 | case REQ_CLOSE: req->result = close (req->fd); break; |
1197 | case REQ_CLOSE: req->result = close (req->int1); break; |
759 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1198 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
760 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1199 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1200 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
761 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1201 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
762 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1202 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
763 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1203 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1204 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1205 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
764 | |
1206 | |
765 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1207 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
766 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1208 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
767 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1209 | case REQ_READDIR: scandir_ (req, self); break; |
768 | |
1210 | |
769 | case REQ_SLEEP: |
1211 | case REQ_BUSY: |
|
|
1212 | #ifdef _WIN32 |
|
|
1213 | Sleep (req->nv1 * 1000.); |
|
|
1214 | #else |
770 | { |
1215 | { |
771 | struct timeval tv; |
1216 | struct timeval tv; |
772 | |
1217 | |
773 | tv.tv_sec = req->fd; |
1218 | tv.tv_sec = req->nv1; |
774 | tv.tv_usec = req->fd2; |
1219 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
775 | |
1220 | |
776 | req->result = select (0, 0, 0, 0, &tv); |
1221 | req->result = select (0, 0, 0, 0, &tv); |
777 | } |
1222 | } |
|
|
1223 | #endif |
|
|
1224 | break; |
|
|
1225 | |
|
|
1226 | case REQ_UTIME: |
|
|
1227 | case REQ_FUTIME: |
|
|
1228 | { |
|
|
1229 | struct timeval tv[2]; |
|
|
1230 | struct timeval *times; |
|
|
1231 | |
|
|
1232 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1233 | { |
|
|
1234 | tv[0].tv_sec = req->nv1; |
|
|
1235 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1236 | tv[1].tv_sec = req->nv2; |
|
|
1237 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1238 | |
|
|
1239 | times = tv; |
|
|
1240 | } |
|
|
1241 | else |
|
|
1242 | times = 0; |
|
|
1243 | |
|
|
1244 | |
|
|
1245 | req->result = req->type == REQ_FUTIME |
|
|
1246 | ? futimes (req->int1, times) |
|
|
1247 | : utimes (req->ptr1, times); |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | case REQ_GROUP: |
|
|
1251 | case REQ_NOP: |
|
|
1252 | break; |
778 | |
1253 | |
779 | case REQ_QUIT: |
1254 | case REQ_QUIT: |
780 | break; |
1255 | goto quit; |
781 | |
1256 | |
782 | default: |
1257 | default: |
783 | req->result = ENOSYS; |
1258 | req->result = -1; |
784 | break; |
1259 | break; |
785 | } |
1260 | } |
786 | |
1261 | |
787 | req->errorno = errno; |
1262 | req->errorno = errno; |
788 | |
1263 | |
789 | pthread_mutex_lock (&reslock); |
1264 | X_LOCK (reslock); |
790 | |
1265 | |
791 | req->next = 0; |
1266 | ++npending; |
792 | |
1267 | |
793 | if (rese) |
1268 | if (!reqq_push (&res_queue, req)) |
794 | { |
1269 | { |
795 | rese->next = req; |
|
|
796 | rese = req; |
|
|
797 | } |
|
|
798 | else |
|
|
799 | { |
|
|
800 | rese = ress = req; |
|
|
801 | |
|
|
802 | /* write a dummy byte to the pipe so fh becomes ready */ |
1270 | /* write a dummy byte to the pipe so fh becomes ready */ |
803 | write (respipe [1], &respipe, 1); |
1271 | write (respipe [1], &respipe, 1); |
|
|
1272 | |
|
|
1273 | /* optionally signal the main thread asynchronously */ |
|
|
1274 | if (main_sig) |
|
|
1275 | pthread_kill (main_tid, main_sig); |
804 | } |
1276 | } |
805 | |
1277 | |
806 | pthread_mutex_unlock (&reslock); |
1278 | self->req = 0; |
|
|
1279 | worker_clear (self); |
|
|
1280 | |
|
|
1281 | X_UNLOCK (reslock); |
807 | } |
1282 | } |
808 | while (type != REQ_QUIT); |
1283 | |
|
|
1284 | quit: |
|
|
1285 | X_LOCK (wrklock); |
|
|
1286 | worker_free (self); |
|
|
1287 | X_UNLOCK (wrklock); |
809 | |
1288 | |
810 | return 0; |
1289 | return 0; |
|
|
1290 | }//D |
811 | } |
1291 | } |
812 | |
1292 | |
813 | /*****************************************************************************/ |
1293 | /*****************************************************************************/ |
814 | |
1294 | |
815 | static void atfork_prepare (void) |
1295 | static void atfork_prepare (void) |
816 | { |
1296 | { |
817 | pthread_mutex_lock (&reqlock); |
1297 | X_LOCK (wrklock); |
818 | pthread_mutex_lock (&reslock); |
1298 | X_LOCK (reqlock); |
|
|
1299 | X_LOCK (reslock); |
819 | #if !HAVE_PREADWRITE |
1300 | #if !HAVE_PREADWRITE |
820 | pthread_mutex_lock (&preadwritelock); |
1301 | X_LOCK (preadwritelock); |
821 | #endif |
1302 | #endif |
822 | #if !HAVE_READDIR_R |
1303 | #if !HAVE_READDIR_R |
823 | pthread_mutex_lock (&readdirlock); |
1304 | X_LOCK (readdirlock); |
824 | #endif |
1305 | #endif |
825 | } |
1306 | } |
826 | |
1307 | |
827 | static void atfork_parent (void) |
1308 | static void atfork_parent (void) |
828 | { |
1309 | { |
829 | #if !HAVE_READDIR_R |
1310 | #if !HAVE_READDIR_R |
830 | pthread_mutex_unlock (&readdirlock); |
1311 | X_UNLOCK (readdirlock); |
831 | #endif |
1312 | #endif |
832 | #if !HAVE_PREADWRITE |
1313 | #if !HAVE_PREADWRITE |
833 | pthread_mutex_unlock (&preadwritelock); |
1314 | X_UNLOCK (preadwritelock); |
834 | #endif |
1315 | #endif |
835 | pthread_mutex_unlock (&reslock); |
1316 | X_UNLOCK (reslock); |
836 | pthread_mutex_unlock (&reqlock); |
1317 | X_UNLOCK (reqlock); |
|
|
1318 | X_UNLOCK (wrklock); |
837 | } |
1319 | } |
838 | |
1320 | |
839 | static void atfork_child (void) |
1321 | static void atfork_child (void) |
840 | { |
1322 | { |
841 | aio_req prv; |
1323 | aio_req prv; |
842 | |
1324 | |
843 | started = 0; |
1325 | while (prv = reqq_shift (&req_queue)) |
|
|
1326 | req_destroy (prv); |
844 | |
1327 | |
845 | while (reqs) |
1328 | while (prv = reqq_shift (&res_queue)) |
|
|
1329 | req_destroy (prv); |
|
|
1330 | |
|
|
1331 | while (wrk_first.next != &wrk_first) |
846 | { |
1332 | { |
847 | prv = reqs; |
1333 | worker *wrk = wrk_first.next; |
848 | reqs = prv->next; |
1334 | |
|
|
1335 | if (wrk->req) |
|
|
1336 | req_destroy (wrk->req); |
|
|
1337 | |
|
|
1338 | worker_clear (wrk); |
849 | req_free (prv); |
1339 | worker_free (wrk); |
850 | } |
1340 | } |
851 | |
1341 | |
852 | reqs = reqe = 0; |
1342 | started = 0; |
853 | |
1343 | idle = 0; |
854 | while (ress) |
1344 | nreqs = 0; |
855 | { |
1345 | nready = 0; |
856 | prv = ress; |
1346 | npending = 0; |
857 | ress = prv->next; |
|
|
858 | req_free (prv); |
|
|
859 | } |
|
|
860 | |
|
|
861 | ress = rese = 0; |
|
|
862 | |
1347 | |
863 | close (respipe [0]); |
1348 | close (respipe [0]); |
864 | close (respipe [1]); |
1349 | close (respipe [1]); |
865 | create_pipe (); |
1350 | |
|
|
1351 | if (!create_pipe (respipe)) |
|
|
1352 | croak ("cannot set result pipe to nonblocking mode"); |
866 | |
1353 | |
867 | atfork_parent (); |
1354 | atfork_parent (); |
868 | } |
1355 | } |
869 | |
1356 | |
870 | #define dREQ \ |
1357 | #define dREQ \ |
871 | aio_req req; \ |
1358 | aio_req req; \ |
|
|
1359 | int req_pri = next_pri; \ |
|
|
1360 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
872 | \ |
1361 | \ |
873 | if (SvOK (callback) && !SvROK (callback)) \ |
1362 | if (SvOK (callback) && !SvROK (callback)) \ |
874 | croak ("callback must be undef or of reference type"); \ |
1363 | croak ("callback must be undef or of reference type"); \ |
875 | \ |
1364 | \ |
876 | Newz (0, req, 1, aio_cb); \ |
1365 | Newz (0, req, 1, aio_cb); \ |
877 | if (!req) \ |
1366 | if (!req) \ |
878 | croak ("out of memory during aio_req allocation"); \ |
1367 | croak ("out of memory during aio_req allocation"); \ |
879 | \ |
1368 | \ |
880 | req->callback = newSVsv (callback) |
1369 | req->callback = newSVsv (callback); \ |
|
|
1370 | req->pri = req_pri |
881 | |
1371 | |
882 | #define REQ_SEND \ |
1372 | #define REQ_SEND \ |
883 | req_send (req); \ |
1373 | req_send (req); \ |
884 | \ |
1374 | \ |
885 | if (GIMME_V != G_VOID) \ |
1375 | if (GIMME_V != G_VOID) \ |
… | |
… | |
890 | PROTOTYPES: ENABLE |
1380 | PROTOTYPES: ENABLE |
891 | |
1381 | |
892 | BOOT: |
1382 | BOOT: |
893 | { |
1383 | { |
894 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1384 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1385 | |
895 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1386 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
896 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1387 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
897 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1388 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1389 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1390 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1391 | #ifdef _WIN32 |
|
|
1392 | X_MUTEX_CHECK (wrklock); |
|
|
1393 | X_MUTEX_CHECK (reslock); |
|
|
1394 | X_MUTEX_CHECK (reqlock); |
|
|
1395 | X_MUTEX_CHECK (reqwait); |
|
|
1396 | X_MUTEX_CHECK (preadwritelock); |
|
|
1397 | X_MUTEX_CHECK (readdirlock); |
|
|
1398 | #else |
|
|
1399 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1400 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
|
|
1401 | #endif |
898 | |
1402 | |
899 | create_pipe (); |
1403 | if (!create_pipe (respipe)) |
|
|
1404 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
1405 | |
900 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1406 | X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); |
901 | } |
1407 | } |
902 | |
1408 | |
903 | void |
1409 | void |
904 | min_parallel (nthreads) |
1410 | max_poll_reqs (int nreqs) |
905 | int nthreads |
|
|
906 | PROTOTYPE: $ |
1411 | PROTOTYPE: $ |
|
|
1412 | CODE: |
|
|
1413 | max_poll_reqs = nreqs; |
907 | |
1414 | |
908 | void |
1415 | void |
909 | max_parallel (nthreads) |
1416 | max_poll_time (double nseconds) |
910 | int nthreads |
|
|
911 | PROTOTYPE: $ |
1417 | PROTOTYPE: $ |
|
|
1418 | CODE: |
|
|
1419 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1420 | |
|
|
1421 | void |
|
|
1422 | min_parallel (int nthreads) |
|
|
1423 | PROTOTYPE: $ |
|
|
1424 | |
|
|
1425 | void |
|
|
1426 | max_parallel (int nthreads) |
|
|
1427 | PROTOTYPE: $ |
|
|
1428 | |
|
|
1429 | void |
|
|
1430 | max_idle (int nthreads) |
|
|
1431 | PROTOTYPE: $ |
|
|
1432 | CODE: |
|
|
1433 | set_max_idle (nthreads); |
912 | |
1434 | |
913 | int |
1435 | int |
914 | max_outstanding (nreqs) |
1436 | max_outstanding (int maxreqs) |
915 | int nreqs |
1437 | PROTOTYPE: $ |
916 | PROTOTYPE: $ |
|
|
917 | CODE: |
1438 | CODE: |
918 | RETVAL = max_outstanding; |
1439 | RETVAL = max_outstanding; |
919 | max_outstanding = nreqs; |
1440 | max_outstanding = maxreqs; |
|
|
1441 | OUTPUT: |
|
|
1442 | RETVAL |
920 | |
1443 | |
921 | void |
1444 | void |
922 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1445 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
923 | SV * pathname |
|
|
924 | int flags |
|
|
925 | int mode |
|
|
926 | SV * callback |
|
|
927 | PROTOTYPE: $$$;$ |
1446 | PROTOTYPE: $$$;$ |
928 | PPCODE: |
1447 | PPCODE: |
929 | { |
1448 | { |
930 | dREQ; |
1449 | dREQ; |
931 | |
1450 | |
932 | req->type = REQ_OPEN; |
1451 | req->type = REQ_OPEN; |
933 | req->data = newSVsv (pathname); |
1452 | req->sv1 = newSVsv (pathname); |
934 | req->dataptr = SvPVbyte_nolen (req->data); |
1453 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
935 | req->fd = flags; |
1454 | req->int1 = flags; |
936 | req->mode = mode; |
1455 | req->mode = mode; |
937 | |
1456 | |
938 | REQ_SEND; |
1457 | REQ_SEND; |
939 | } |
1458 | } |
940 | |
1459 | |
941 | void |
1460 | void |
942 | aio_close (fh,callback=&PL_sv_undef) |
1461 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
943 | SV * fh |
|
|
944 | SV * callback |
|
|
945 | PROTOTYPE: $;$ |
1462 | PROTOTYPE: $;$ |
946 | ALIAS: |
1463 | ALIAS: |
947 | aio_close = REQ_CLOSE |
1464 | aio_close = REQ_CLOSE |
948 | aio_fsync = REQ_FSYNC |
1465 | aio_fsync = REQ_FSYNC |
949 | aio_fdatasync = REQ_FDATASYNC |
1466 | aio_fdatasync = REQ_FDATASYNC |
950 | PPCODE: |
1467 | PPCODE: |
951 | { |
1468 | { |
952 | dREQ; |
1469 | dREQ; |
953 | |
1470 | |
954 | req->type = ix; |
1471 | req->type = ix; |
955 | req->fh = newSVsv (fh); |
1472 | req->sv1 = newSVsv (fh); |
956 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1473 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
957 | |
1474 | |
958 | REQ_SEND (req); |
1475 | REQ_SEND (req); |
959 | } |
1476 | } |
960 | |
1477 | |
961 | void |
1478 | void |
962 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1479 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
963 | SV * fh |
|
|
964 | UV offset |
|
|
965 | UV length |
|
|
966 | SV * data |
|
|
967 | UV dataoffset |
|
|
968 | SV * callback |
|
|
969 | ALIAS: |
1480 | ALIAS: |
970 | aio_read = REQ_READ |
1481 | aio_read = REQ_READ |
971 | aio_write = REQ_WRITE |
1482 | aio_write = REQ_WRITE |
972 | PROTOTYPE: $$$$$;$ |
1483 | PROTOTYPE: $$$$$;$ |
973 | PPCODE: |
1484 | PPCODE: |
974 | { |
1485 | { |
975 | aio_req req; |
|
|
976 | STRLEN svlen; |
1486 | STRLEN svlen; |
977 | char *svptr = SvPVbyte (data, svlen); |
1487 | char *svptr = SvPVbyte (data, svlen); |
|
|
1488 | UV len = SvUV (length); |
978 | |
1489 | |
979 | SvUPGRADE (data, SVt_PV); |
1490 | SvUPGRADE (data, SVt_PV); |
980 | SvPOK_on (data); |
1491 | SvPOK_on (data); |
981 | |
1492 | |
982 | if (dataoffset < 0) |
1493 | if (dataoffset < 0) |
983 | dataoffset += svlen; |
1494 | dataoffset += svlen; |
984 | |
1495 | |
985 | if (dataoffset < 0 || dataoffset > svlen) |
1496 | if (dataoffset < 0 || dataoffset > svlen) |
986 | croak ("data offset outside of string"); |
1497 | croak ("dataoffset outside of data scalar"); |
987 | |
1498 | |
988 | if (ix == REQ_WRITE) |
1499 | if (ix == REQ_WRITE) |
989 | { |
1500 | { |
990 | /* write: check length and adjust. */ |
1501 | /* write: check length and adjust. */ |
991 | if (length < 0 || length + dataoffset > svlen) |
1502 | if (!SvOK (length) || len + dataoffset > svlen) |
992 | length = svlen - dataoffset; |
1503 | len = svlen - dataoffset; |
993 | } |
1504 | } |
994 | else |
1505 | else |
995 | { |
1506 | { |
996 | /* read: grow scalar as necessary */ |
1507 | /* read: grow scalar as necessary */ |
997 | svptr = SvGROW (data, length + dataoffset); |
1508 | svptr = SvGROW (data, len + dataoffset + 1); |
998 | } |
1509 | } |
999 | |
1510 | |
1000 | if (length < 0) |
1511 | if (len < 0) |
1001 | croak ("length must not be negative"); |
1512 | croak ("length must not be negative"); |
1002 | |
1513 | |
1003 | { |
1514 | { |
1004 | dREQ; |
1515 | dREQ; |
1005 | |
1516 | |
1006 | req->type = ix; |
1517 | req->type = ix; |
1007 | req->fh = newSVsv (fh); |
1518 | req->sv1 = newSVsv (fh); |
1008 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1519 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1009 | : IoOFP (sv_2io (fh))); |
1520 | : IoOFP (sv_2io (fh))); |
|
|
1521 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
1010 | req->offset = offset; |
1522 | req->size = len; |
1011 | req->length = length; |
|
|
1012 | req->data = SvREFCNT_inc (data); |
1523 | req->sv2 = SvREFCNT_inc (data); |
1013 | req->dataptr = (char *)svptr + dataoffset; |
1524 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1525 | req->stroffset = dataoffset; |
1014 | |
1526 | |
1015 | if (!SvREADONLY (data)) |
1527 | if (!SvREADONLY (data)) |
1016 | { |
1528 | { |
1017 | SvREADONLY_on (data); |
1529 | SvREADONLY_on (data); |
1018 | req->data2ptr = (void *)data; |
1530 | req->flags |= FLAG_SV2_RO_OFF; |
1019 | } |
1531 | } |
1020 | |
1532 | |
1021 | REQ_SEND; |
1533 | REQ_SEND; |
1022 | } |
1534 | } |
1023 | } |
1535 | } |
1024 | |
1536 | |
1025 | void |
1537 | void |
|
|
1538 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1539 | PROTOTYPE: $$;$ |
|
|
1540 | PPCODE: |
|
|
1541 | { |
|
|
1542 | SV *data; |
|
|
1543 | dREQ; |
|
|
1544 | |
|
|
1545 | data = newSV (NAME_MAX); |
|
|
1546 | SvPOK_on (data); |
|
|
1547 | |
|
|
1548 | req->type = REQ_READLINK; |
|
|
1549 | req->sv1 = newSVsv (path); |
|
|
1550 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1551 | req->sv2 = data; |
|
|
1552 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1553 | |
|
|
1554 | REQ_SEND; |
|
|
1555 | } |
|
|
1556 | |
|
|
1557 | void |
1026 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1558 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
1027 | SV * out_fh |
|
|
1028 | SV * in_fh |
|
|
1029 | UV in_offset |
|
|
1030 | UV length |
|
|
1031 | SV * callback |
|
|
1032 | PROTOTYPE: $$$$;$ |
1559 | PROTOTYPE: $$$$;$ |
1033 | PPCODE: |
1560 | PPCODE: |
1034 | { |
1561 | { |
1035 | dREQ; |
1562 | dREQ; |
1036 | |
1563 | |
1037 | req->type = REQ_SENDFILE; |
1564 | req->type = REQ_SENDFILE; |
1038 | req->fh = newSVsv (out_fh); |
1565 | req->sv1 = newSVsv (out_fh); |
1039 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1566 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1040 | req->fh2 = newSVsv (in_fh); |
1567 | req->sv2 = newSVsv (in_fh); |
1041 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1568 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1042 | req->offset = in_offset; |
1569 | req->offs = SvVAL64 (in_offset); |
1043 | req->length = length; |
1570 | req->size = length; |
1044 | |
1571 | |
1045 | REQ_SEND; |
1572 | REQ_SEND; |
1046 | } |
1573 | } |
1047 | |
1574 | |
1048 | void |
1575 | void |
1049 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
1576 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
1050 | SV * fh |
|
|
1051 | UV offset |
|
|
1052 | IV length |
|
|
1053 | SV * callback |
|
|
1054 | PROTOTYPE: $$$;$ |
1577 | PROTOTYPE: $$$;$ |
1055 | PPCODE: |
1578 | PPCODE: |
1056 | { |
1579 | { |
1057 | dREQ; |
1580 | dREQ; |
1058 | |
1581 | |
1059 | req->type = REQ_READAHEAD; |
1582 | req->type = REQ_READAHEAD; |
1060 | req->fh = newSVsv (fh); |
1583 | req->sv1 = newSVsv (fh); |
1061 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1584 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1062 | req->offset = offset; |
1585 | req->offs = SvVAL64 (offset); |
1063 | req->length = length; |
1586 | req->size = length; |
1064 | |
1587 | |
1065 | REQ_SEND; |
1588 | REQ_SEND; |
1066 | } |
1589 | } |
1067 | |
1590 | |
1068 | void |
1591 | void |
1069 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1592 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
1070 | SV * fh_or_path |
|
|
1071 | SV * callback |
|
|
1072 | ALIAS: |
1593 | ALIAS: |
1073 | aio_stat = REQ_STAT |
1594 | aio_stat = REQ_STAT |
1074 | aio_lstat = REQ_LSTAT |
1595 | aio_lstat = REQ_LSTAT |
1075 | PPCODE: |
1596 | PPCODE: |
1076 | { |
1597 | { |
1077 | dREQ; |
1598 | dREQ; |
1078 | |
1599 | |
1079 | New (0, req->statdata, 1, Stat_t); |
1600 | req->ptr2 = malloc (sizeof (Stat_t)); |
1080 | if (!req->statdata) |
1601 | if (!req->ptr2) |
1081 | { |
1602 | { |
1082 | req_free (req); |
1603 | req_destroy (req); |
1083 | croak ("out of memory during aio_req->statdata allocation"); |
1604 | croak ("out of memory during aio_stat statdata allocation"); |
1084 | } |
1605 | } |
|
|
1606 | |
|
|
1607 | req->flags |= FLAG_PTR2_FREE; |
|
|
1608 | req->sv1 = newSVsv (fh_or_path); |
1085 | |
1609 | |
1086 | if (SvPOK (fh_or_path)) |
1610 | if (SvPOK (fh_or_path)) |
1087 | { |
1611 | { |
1088 | req->type = ix; |
1612 | req->type = ix; |
1089 | req->data = newSVsv (fh_or_path); |
|
|
1090 | req->dataptr = SvPVbyte_nolen (req->data); |
1613 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1091 | } |
1614 | } |
1092 | else |
1615 | else |
1093 | { |
1616 | { |
1094 | req->type = REQ_FSTAT; |
1617 | req->type = REQ_FSTAT; |
1095 | req->fh = newSVsv (fh_or_path); |
|
|
1096 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1618 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1097 | } |
1619 | } |
1098 | |
1620 | |
1099 | REQ_SEND; |
1621 | REQ_SEND; |
1100 | } |
1622 | } |
1101 | |
1623 | |
1102 | void |
1624 | void |
|
|
1625 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1626 | PPCODE: |
|
|
1627 | { |
|
|
1628 | dREQ; |
|
|
1629 | |
|
|
1630 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1631 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1632 | req->sv1 = newSVsv (fh_or_path); |
|
|
1633 | |
|
|
1634 | if (SvPOK (fh_or_path)) |
|
|
1635 | { |
|
|
1636 | req->type = REQ_UTIME; |
|
|
1637 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1638 | } |
|
|
1639 | else |
|
|
1640 | { |
|
|
1641 | req->type = REQ_FUTIME; |
|
|
1642 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | REQ_SEND; |
|
|
1646 | } |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1650 | PPCODE: |
|
|
1651 | { |
|
|
1652 | dREQ; |
|
|
1653 | |
|
|
1654 | req->sv1 = newSVsv (fh_or_path); |
|
|
1655 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1656 | |
|
|
1657 | if (SvPOK (fh_or_path)) |
|
|
1658 | { |
|
|
1659 | req->type = REQ_TRUNCATE; |
|
|
1660 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1661 | } |
|
|
1662 | else |
|
|
1663 | { |
|
|
1664 | req->type = REQ_FTRUNCATE; |
|
|
1665 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1666 | } |
|
|
1667 | |
|
|
1668 | REQ_SEND; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | void |
|
|
1672 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1673 | PPCODE: |
|
|
1674 | { |
|
|
1675 | dREQ; |
|
|
1676 | |
|
|
1677 | req->mode = mode; |
|
|
1678 | req->sv1 = newSVsv (fh_or_path); |
|
|
1679 | |
|
|
1680 | if (SvPOK (fh_or_path)) |
|
|
1681 | { |
|
|
1682 | req->type = REQ_CHMOD; |
|
|
1683 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1684 | } |
|
|
1685 | else |
|
|
1686 | { |
|
|
1687 | req->type = REQ_FCHMOD; |
|
|
1688 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | REQ_SEND; |
|
|
1692 | } |
|
|
1693 | |
|
|
1694 | void |
|
|
1695 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1696 | PPCODE: |
|
|
1697 | { |
|
|
1698 | dREQ; |
|
|
1699 | |
|
|
1700 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1701 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1702 | req->sv1 = newSVsv (fh_or_path); |
|
|
1703 | |
|
|
1704 | if (SvPOK (fh_or_path)) |
|
|
1705 | { |
|
|
1706 | req->type = REQ_CHOWN; |
|
|
1707 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1708 | } |
|
|
1709 | else |
|
|
1710 | { |
|
|
1711 | req->type = REQ_FCHOWN; |
|
|
1712 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1713 | } |
|
|
1714 | |
|
|
1715 | REQ_SEND; |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | void |
1103 | aio_unlink (pathname,callback=&PL_sv_undef) |
1719 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
1104 | SV * pathname |
|
|
1105 | SV * callback |
|
|
1106 | ALIAS: |
1720 | ALIAS: |
1107 | aio_unlink = REQ_UNLINK |
1721 | aio_unlink = REQ_UNLINK |
1108 | aio_rmdir = REQ_RMDIR |
1722 | aio_rmdir = REQ_RMDIR |
1109 | aio_readdir = REQ_READDIR |
1723 | aio_readdir = REQ_READDIR |
1110 | PPCODE: |
1724 | PPCODE: |
1111 | { |
1725 | { |
1112 | dREQ; |
1726 | dREQ; |
1113 | |
1727 | |
1114 | req->type = ix; |
1728 | req->type = ix; |
1115 | req->data = newSVsv (pathname); |
1729 | req->sv1 = newSVsv (pathname); |
1116 | req->dataptr = SvPVbyte_nolen (req->data); |
1730 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1731 | |
|
|
1732 | REQ_SEND; |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | void |
|
|
1736 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1737 | PPCODE: |
|
|
1738 | { |
|
|
1739 | dREQ; |
1117 | |
1740 | |
|
|
1741 | req->type = REQ_MKDIR; |
|
|
1742 | req->sv1 = newSVsv (pathname); |
|
|
1743 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1744 | req->mode = mode; |
|
|
1745 | |
1118 | REQ_SEND; |
1746 | REQ_SEND; |
1119 | } |
1747 | } |
1120 | |
1748 | |
1121 | void |
1749 | void |
1122 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1750 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
1123 | SV * oldpath |
|
|
1124 | SV * newpath |
|
|
1125 | SV * callback |
|
|
1126 | ALIAS: |
1751 | ALIAS: |
1127 | aio_link = REQ_LINK |
1752 | aio_link = REQ_LINK |
1128 | aio_symlink = REQ_SYMLINK |
1753 | aio_symlink = REQ_SYMLINK |
1129 | aio_rename = REQ_RENAME |
1754 | aio_rename = REQ_RENAME |
1130 | PPCODE: |
1755 | PPCODE: |
1131 | { |
1756 | { |
1132 | dREQ; |
1757 | dREQ; |
1133 | |
1758 | |
1134 | req->type = ix; |
1759 | req->type = ix; |
1135 | req->fh = newSVsv (oldpath); |
1760 | req->sv2 = newSVsv (oldpath); |
1136 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1761 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
1137 | req->data = newSVsv (newpath); |
1762 | req->sv1 = newSVsv (newpath); |
1138 | req->dataptr = SvPVbyte_nolen (req->data); |
1763 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1139 | |
1764 | |
1140 | REQ_SEND; |
1765 | REQ_SEND; |
1141 | } |
1766 | } |
1142 | |
1767 | |
1143 | void |
1768 | void |
1144 | aio_sleep (delay,callback=&PL_sv_undef) |
1769 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
1145 | double delay |
|
|
1146 | SV * callback |
|
|
1147 | PPCODE: |
1770 | PPCODE: |
1148 | { |
1771 | { |
1149 | dREQ; |
1772 | dREQ; |
1150 | |
1773 | |
1151 | req->type = REQ_SLEEP; |
1774 | req->type = REQ_MKNOD; |
1152 | req->fd = delay < 0. ? 0 : delay; |
1775 | req->sv1 = newSVsv (pathname); |
1153 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1776 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1154 | |
1777 | req->mode = (mode_t)mode; |
|
|
1778 | req->offs = dev; |
|
|
1779 | |
1155 | REQ_SEND; |
1780 | REQ_SEND; |
1156 | } |
1781 | } |
1157 | |
1782 | |
1158 | void |
1783 | void |
|
|
1784 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1785 | PPCODE: |
|
|
1786 | { |
|
|
1787 | dREQ; |
|
|
1788 | |
|
|
1789 | req->type = REQ_BUSY; |
|
|
1790 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1791 | |
|
|
1792 | REQ_SEND; |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | void |
1159 | aio_group (callback=&PL_sv_undef) |
1796 | aio_group (SV *callback=&PL_sv_undef) |
1160 | SV * callback |
|
|
1161 | PROTOTYPE: ;$ |
1797 | PROTOTYPE: ;$ |
1162 | PPCODE: |
1798 | PPCODE: |
1163 | { |
1799 | { |
1164 | dREQ; |
1800 | dREQ; |
|
|
1801 | |
1165 | req->type = REQ_GROUP; |
1802 | req->type = REQ_GROUP; |
1166 | req->grp_next = req; |
|
|
1167 | req->grp_prev = req; |
|
|
1168 | |
1803 | |
1169 | req_send (req); |
1804 | req_send (req); |
1170 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1805 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1171 | } |
1806 | } |
|
|
1807 | |
|
|
1808 | void |
|
|
1809 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1810 | PPCODE: |
|
|
1811 | { |
|
|
1812 | dREQ; |
|
|
1813 | |
|
|
1814 | req->type = REQ_NOP; |
|
|
1815 | |
|
|
1816 | REQ_SEND; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | int |
|
|
1820 | aioreq_pri (int pri = 0) |
|
|
1821 | PROTOTYPE: ;$ |
|
|
1822 | CODE: |
|
|
1823 | RETVAL = next_pri - PRI_BIAS; |
|
|
1824 | if (items > 0) |
|
|
1825 | { |
|
|
1826 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1827 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1828 | next_pri = pri + PRI_BIAS; |
|
|
1829 | } |
|
|
1830 | OUTPUT: |
|
|
1831 | RETVAL |
|
|
1832 | |
|
|
1833 | void |
|
|
1834 | aioreq_nice (int nice = 0) |
|
|
1835 | CODE: |
|
|
1836 | nice = next_pri - nice; |
|
|
1837 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1838 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1839 | next_pri = nice + PRI_BIAS; |
1172 | |
1840 | |
1173 | void |
1841 | void |
1174 | flush () |
1842 | flush () |
1175 | PROTOTYPE: |
1843 | PROTOTYPE: |
1176 | CODE: |
1844 | CODE: |
… | |
… | |
1178 | { |
1846 | { |
1179 | poll_wait (); |
1847 | poll_wait (); |
1180 | poll_cb (); |
1848 | poll_cb (); |
1181 | } |
1849 | } |
1182 | |
1850 | |
1183 | void |
1851 | int |
1184 | poll() |
1852 | poll() |
1185 | PROTOTYPE: |
1853 | PROTOTYPE: |
1186 | CODE: |
1854 | CODE: |
1187 | if (nreqs) |
|
|
1188 | { |
|
|
1189 | poll_wait (); |
1855 | poll_wait (); |
1190 | poll_cb (); |
1856 | RETVAL = poll_cb (); |
1191 | } |
1857 | OUTPUT: |
|
|
1858 | RETVAL |
1192 | |
1859 | |
1193 | int |
1860 | int |
1194 | poll_fileno() |
1861 | poll_fileno() |
1195 | PROTOTYPE: |
1862 | PROTOTYPE: |
1196 | CODE: |
1863 | CODE: |
… | |
… | |
1208 | |
1875 | |
1209 | void |
1876 | void |
1210 | poll_wait() |
1877 | poll_wait() |
1211 | PROTOTYPE: |
1878 | PROTOTYPE: |
1212 | CODE: |
1879 | CODE: |
1213 | if (nreqs) |
|
|
1214 | poll_wait (); |
1880 | poll_wait (); |
|
|
1881 | |
|
|
1882 | void |
|
|
1883 | setsig (int signum = SIGIO) |
|
|
1884 | PROTOTYPE: ;$ |
|
|
1885 | CODE: |
|
|
1886 | { |
|
|
1887 | if (block_sig_level) |
|
|
1888 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1889 | |
|
|
1890 | X_LOCK (reslock); |
|
|
1891 | main_tid = pthread_self (); |
|
|
1892 | main_sig = signum; |
|
|
1893 | X_UNLOCK (reslock); |
|
|
1894 | |
|
|
1895 | if (main_sig && npending) |
|
|
1896 | pthread_kill (main_tid, main_sig); |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | void |
|
|
1900 | aio_block (SV *cb) |
|
|
1901 | PROTOTYPE: & |
|
|
1902 | PPCODE: |
|
|
1903 | { |
|
|
1904 | int count; |
|
|
1905 | |
|
|
1906 | block_sig (); |
|
|
1907 | PUSHMARK (SP); |
|
|
1908 | PUTBACK; |
|
|
1909 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1910 | SPAGAIN; |
|
|
1911 | unblock_sig (); |
|
|
1912 | |
|
|
1913 | if (SvTRUE (ERRSV)) |
|
|
1914 | croak (0); |
|
|
1915 | |
|
|
1916 | XSRETURN (count); |
|
|
1917 | } |
1215 | |
1918 | |
1216 | int |
1919 | int |
1217 | nreqs() |
1920 | nreqs() |
1218 | PROTOTYPE: |
1921 | PROTOTYPE: |
1219 | CODE: |
1922 | CODE: |
1220 | RETVAL = nreqs; |
1923 | RETVAL = nreqs; |
1221 | OUTPUT: |
1924 | OUTPUT: |
1222 | RETVAL |
1925 | RETVAL |
1223 | |
1926 | |
1224 | PROTOTYPES: DISABLE |
1927 | int |
1225 | |
1928 | nready() |
1226 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1227 | |
|
|
1228 | void |
|
|
1229 | cancel (aio_req_ornot req) |
|
|
1230 | PROTOTYPE: |
1929 | PROTOTYPE: |
1231 | CODE: |
1930 | CODE: |
|
|
1931 | RETVAL = get_nready (); |
|
|
1932 | OUTPUT: |
|
|
1933 | RETVAL |
|
|
1934 | |
|
|
1935 | int |
|
|
1936 | npending() |
|
|
1937 | PROTOTYPE: |
|
|
1938 | CODE: |
|
|
1939 | RETVAL = get_npending (); |
|
|
1940 | OUTPUT: |
|
|
1941 | RETVAL |
|
|
1942 | |
|
|
1943 | int |
|
|
1944 | nthreads() |
|
|
1945 | PROTOTYPE: |
|
|
1946 | CODE: |
|
|
1947 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
|
|
1948 | RETVAL = started; |
|
|
1949 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
|
|
1950 | OUTPUT: |
|
|
1951 | RETVAL |
|
|
1952 | |
|
|
1953 | PROTOTYPES: DISABLE |
|
|
1954 | |
|
|
1955 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1956 | |
|
|
1957 | void |
|
|
1958 | cancel (aio_req_ornot req) |
|
|
1959 | CODE: |
1232 | req_cancel (req); |
1960 | req_cancel (req); |
|
|
1961 | |
|
|
1962 | void |
|
|
1963 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1964 | CODE: |
|
|
1965 | SvREFCNT_dec (req->callback); |
|
|
1966 | req->callback = newSVsv (callback); |
1233 | |
1967 | |
1234 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1968 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1235 | |
1969 | |
1236 | void |
1970 | void |
1237 | add (aio_req grp, ...) |
1971 | add (aio_req grp, ...) |
1238 | PPCODE: |
1972 | PPCODE: |
1239 | { |
1973 | { |
1240 | int i; |
1974 | int i; |
|
|
1975 | aio_req req; |
|
|
1976 | |
|
|
1977 | if (main_sig && !block_sig_level) |
|
|
1978 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1979 | |
|
|
1980 | if (grp->int1 == 2) |
|
|
1981 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1241 | |
1982 | |
1242 | for (i = 1; i < items; ++i ) |
1983 | for (i = 1; i < items; ++i ) |
1243 | { |
1984 | { |
1244 | if (GIMME_V != G_VOID) |
1985 | if (GIMME_V != G_VOID) |
1245 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1986 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1246 | |
1987 | |
1247 | aio_req req = SvAIO_REQ (ST (i)); |
1988 | req = SvAIO_REQ (ST (i)); |
1248 | |
1989 | |
1249 | if (req) |
1990 | if (req) |
1250 | { |
1991 | { |
1251 | req->grp_prev = grp; |
1992 | ++grp->size; |
1252 | req->grp_next = grp->grp_next; |
|
|
1253 | grp->grp_next->grp_prev = req; |
|
|
1254 | grp->grp_next = req; |
|
|
1255 | |
|
|
1256 | req->grp = grp; |
1993 | req->grp = grp; |
|
|
1994 | |
|
|
1995 | req->grp_prev = 0; |
|
|
1996 | req->grp_next = grp->grp_first; |
|
|
1997 | |
|
|
1998 | if (grp->grp_first) |
|
|
1999 | grp->grp_first->grp_prev = req; |
|
|
2000 | |
|
|
2001 | grp->grp_first = req; |
1257 | } |
2002 | } |
1258 | } |
2003 | } |
1259 | } |
2004 | } |
1260 | |
2005 | |
1261 | void |
2006 | void |
|
|
2007 | cancel_subs (aio_req_ornot req) |
|
|
2008 | CODE: |
|
|
2009 | req_cancel_subs (req); |
|
|
2010 | |
|
|
2011 | void |
1262 | result (aio_req grp, ...) |
2012 | result (aio_req grp, ...) |
|
|
2013 | CODE: |
|
|
2014 | { |
|
|
2015 | int i; |
|
|
2016 | AV *av; |
|
|
2017 | |
|
|
2018 | grp->errorno = errno; |
|
|
2019 | |
|
|
2020 | av = newAV (); |
|
|
2021 | |
|
|
2022 | for (i = 1; i < items; ++i ) |
|
|
2023 | av_push (av, newSVsv (ST (i))); |
|
|
2024 | |
|
|
2025 | SvREFCNT_dec (grp->sv1); |
|
|
2026 | grp->sv1 = (SV *)av; |
|
|
2027 | } |
|
|
2028 | |
|
|
2029 | void |
|
|
2030 | errno (aio_req grp, int errorno = errno) |
|
|
2031 | CODE: |
|
|
2032 | grp->errorno = errorno; |
|
|
2033 | |
|
|
2034 | void |
|
|
2035 | limit (aio_req grp, int limit) |
1263 | CODE: |
2036 | CODE: |
1264 | { |
2037 | grp->int2 = limit; |
1265 | int i; |
2038 | aio_grp_feed (grp); |
1266 | AV *av = newAV (); |
|
|
1267 | |
2039 | |
1268 | if (grp->data) |
2040 | void |
|
|
2041 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
2042 | CODE: |
|
|
2043 | { |
1269 | SvREFCNT_dec (grp->data); |
2044 | SvREFCNT_dec (grp->sv2); |
|
|
2045 | grp->sv2 = newSVsv (callback); |
1270 | |
2046 | |
1271 | for (i = 1; i < items; ++i ) |
2047 | if (grp->int2 <= 0) |
1272 | av_push (av, newSVsv (ST (i))); |
2048 | grp->int2 = 2; |
1273 | |
2049 | |
1274 | grp->data = (SV *)av; |
2050 | aio_grp_feed (grp); |
1275 | } |
2051 | } |
1276 | |
2052 | |