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1 | #include "xthread.h" |
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2 | |
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3 | #include <errno.h> |
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4 | |
1 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
2 | #include "perl.h" |
6 | #include "perl.h" |
3 | #include "XSUB.h" |
7 | #include "XSUB.h" |
4 | |
8 | |
5 | #include "autoconf/config.h" |
9 | #include "autoconf/config.h" |
6 | |
10 | |
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11 | #include <stddef.h> |
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12 | #include <stdlib.h> |
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13 | #include <errno.h> |
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14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
7 | #include <sys/types.h> |
16 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
9 | |
18 | #include <limits.h> |
10 | #include <unistd.h> |
19 | #include <unistd.h> |
11 | #include <fcntl.h> |
20 | #include <fcntl.h> |
12 | #include <signal.h> |
21 | #include <signal.h> |
13 | #include <sched.h> |
22 | #include <sched.h> |
14 | |
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15 | #include <pthread.h> |
23 | #include <utime.h> |
16 | |
24 | |
17 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
25 | #if HAVE_SENDFILE |
18 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
26 | # if __linux |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
27 | # include <sys/sendfile.h> |
20 | |
28 | # elif __freebsd |
21 | #if __ia64 |
29 | # include <sys/socket.h> |
22 | # define STACKSIZE 65536 |
30 | # include <sys/uio.h> |
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31 | # elif __hpux |
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32 | # include <sys/socket.h> |
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33 | # elif __solaris /* not yet */ |
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34 | # include <sys/sendfile.h> |
23 | #else |
35 | # else |
24 | # define STACKSIZE 4096 |
36 | # error sendfile support requested but not available |
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37 | # endif |
25 | #endif |
38 | #endif |
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39 | |
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40 | /* number of seconds after which idle threads exit */ |
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41 | #define IDLE_TIMEOUT 10 |
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42 | |
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43 | /* used for struct dirent, AIX doesn't provide it */ |
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44 | #ifndef NAME_MAX |
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45 | # define NAME_MAX 4096 |
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46 | #endif |
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47 | |
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48 | /* buffer size for various temporary buffers */ |
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49 | #define AIO_BUFSIZE 65536 |
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50 | |
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51 | #define dBUF \ |
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52 | char *aio_buf; \ |
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53 | LOCK (wrklock); \ |
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54 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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55 | UNLOCK (wrklock); \ |
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56 | if (!aio_buf) \ |
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57 | return -1; |
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58 | |
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59 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
26 | |
60 | |
27 | enum { |
61 | enum { |
28 | REQ_QUIT, |
62 | REQ_QUIT, |
29 | REQ_OPEN, REQ_CLOSE, |
63 | REQ_OPEN, REQ_CLOSE, |
30 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
64 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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65 | REQ_SENDFILE, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
66 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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67 | REQ_UTIME, REQ_FUTIME, /* must be consecutive */ |
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68 | REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */ |
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69 | REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */ |
32 | REQ_FSYNC, REQ_FDATASYNC, |
70 | REQ_FSYNC, REQ_FDATASYNC, |
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71 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
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72 | REQ_MKNOD, REQ_READDIR, |
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73 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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74 | REQ_GROUP, REQ_NOP, |
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75 | REQ_BUSY, |
33 | }; |
76 | }; |
34 | |
77 | |
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78 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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79 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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80 | |
35 | typedef struct aio_cb { |
81 | typedef struct aio_cb |
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82 | { |
36 | struct aio_cb *volatile next; |
83 | struct aio_cb *volatile next; |
37 | |
84 | |
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85 | SV *callback; |
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86 | SV *sv1, *sv2; |
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87 | void *ptr1, *ptr2; |
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88 | off_t offs; |
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89 | size_t size; |
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90 | ssize_t result; |
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91 | double nv1, nv2; |
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92 | |
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93 | STRLEN stroffset; |
38 | int type; |
94 | int type; |
39 | |
95 | int int1, int2, int3; |
40 | int fd; |
96 | int errorno; |
41 | off_t offset; |
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42 | size_t length; |
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43 | ssize_t result; |
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44 | mode_t mode; /* open */ |
97 | mode_t mode; /* open */ |
45 | int errorno; |
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46 | SV *data, *callback, *fh; |
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47 | void *dataptr; |
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48 | STRLEN dataoffset; |
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49 | |
98 | |
50 | Stat_t *statdata; |
99 | unsigned char flags; |
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100 | unsigned char pri; |
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101 | |
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102 | SV *self; /* the perl counterpart of this request, if any */ |
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103 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
51 | } aio_cb; |
104 | } aio_cb; |
52 | |
105 | |
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106 | enum { |
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107 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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108 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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109 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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110 | }; |
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111 | |
53 | typedef aio_cb *aio_req; |
112 | typedef aio_cb *aio_req; |
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113 | typedef aio_cb *aio_req_ornot; |
54 | |
114 | |
55 | static int started; |
115 | enum { |
56 | static volatile int nreqs; |
116 | PRI_MIN = -4, |
57 | static int max_outstanding = 1<<30; |
117 | PRI_MAX = 4, |
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118 | |
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119 | DEFAULT_PRI = 0, |
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120 | PRI_BIAS = -PRI_MIN, |
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121 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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122 | }; |
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123 | |
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124 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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125 | |
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126 | static unsigned int max_poll_time = 0; |
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127 | static unsigned int max_poll_reqs = 0; |
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128 | |
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129 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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130 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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131 | { |
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132 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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133 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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134 | } |
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135 | |
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136 | static thread_t main_tid; |
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137 | static int main_sig; |
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138 | static int block_sig_level; |
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139 | |
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140 | void block_sig () |
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141 | { |
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142 | sigset_t ss; |
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143 | |
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144 | if (block_sig_level++) |
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145 | return; |
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146 | |
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147 | if (!main_sig) |
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148 | return; |
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149 | |
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150 | sigemptyset (&ss); |
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151 | sigaddset (&ss, main_sig); |
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152 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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153 | } |
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154 | |
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155 | void unblock_sig () |
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156 | { |
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157 | sigset_t ss; |
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158 | |
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159 | if (--block_sig_level) |
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160 | return; |
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161 | |
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162 | if (!main_sig) |
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163 | return; |
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164 | |
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165 | sigemptyset (&ss); |
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166 | sigaddset (&ss, main_sig); |
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167 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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168 | } |
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169 | |
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170 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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171 | |
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172 | static unsigned int started, idle, wanted; |
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173 | |
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174 | /* worker threads management */ |
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175 | static mutex_t wrklock = MUTEX_INIT; |
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176 | |
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177 | typedef struct worker { |
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178 | /* locked by wrklock */ |
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179 | struct worker *prev, *next; |
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180 | |
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181 | thread_t tid; |
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182 | |
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183 | /* locked by reslock, reqlock or wrklock */ |
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184 | aio_req req; /* currently processed request */ |
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185 | void *dbuf; |
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186 | DIR *dirp; |
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187 | } worker; |
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188 | |
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189 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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190 | |
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191 | static void worker_clear (worker *wrk) |
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192 | { |
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193 | if (wrk->dirp) |
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194 | { |
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195 | closedir (wrk->dirp); |
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196 | wrk->dirp = 0; |
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197 | } |
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198 | |
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199 | if (wrk->dbuf) |
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200 | { |
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201 | free (wrk->dbuf); |
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202 | wrk->dbuf = 0; |
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203 | } |
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204 | } |
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205 | |
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206 | static void worker_free (worker *wrk) |
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207 | { |
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208 | wrk->next->prev = wrk->prev; |
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209 | wrk->prev->next = wrk->next; |
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210 | |
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211 | free (wrk); |
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212 | } |
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213 | |
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214 | static volatile unsigned int nreqs, nready, npending; |
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215 | static volatile unsigned int max_idle = 4; |
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216 | static volatile unsigned int max_outstanding = 0xffffffff; |
58 | static int respipe [2]; |
217 | static int respipe [2]; |
59 | |
218 | |
60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
219 | static mutex_t reslock = MUTEX_INIT; |
61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
220 | static mutex_t reqlock = MUTEX_INIT; |
62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
221 | static cond_t reqwait = COND_INIT; |
63 | |
222 | |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
223 | #if WORDACCESS_UNSAFE |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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66 | |
224 | |
67 | static void |
225 | static unsigned int get_nready () |
68 | poll_wait () |
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69 | { |
226 | { |
70 | if (nreqs && !ress) |
227 | unsigned int retval; |
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228 | |
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229 | LOCK (reqlock); |
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230 | retval = nready; |
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231 | UNLOCK (reqlock); |
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232 | |
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233 | return retval; |
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234 | } |
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235 | |
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236 | static unsigned int get_npending () |
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237 | { |
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238 | unsigned int retval; |
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239 | |
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240 | LOCK (reslock); |
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241 | retval = npending; |
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242 | UNLOCK (reslock); |
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243 | |
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244 | return retval; |
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245 | } |
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246 | |
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247 | static unsigned int get_nthreads () |
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248 | { |
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249 | unsigned int retval; |
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250 | |
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251 | LOCK (wrklock); |
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252 | retval = started; |
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253 | UNLOCK (wrklock); |
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254 | |
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255 | return retval; |
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256 | } |
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257 | |
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258 | #else |
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259 | |
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260 | # define get_nready() nready |
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261 | # define get_npending() npending |
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262 | # define get_nthreads() started |
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263 | |
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264 | #endif |
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265 | |
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266 | /* |
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267 | * a somewhat faster data structure might be nice, but |
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268 | * with 8 priorities this actually needs <20 insns |
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269 | * per shift, the most expensive operation. |
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270 | */ |
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271 | typedef struct { |
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272 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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273 | int size; |
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274 | } reqq; |
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275 | |
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276 | static reqq req_queue; |
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277 | static reqq res_queue; |
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278 | |
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279 | int reqq_push (reqq *q, aio_req req) |
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280 | { |
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281 | int pri = req->pri; |
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282 | req->next = 0; |
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283 | |
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284 | if (q->qe[pri]) |
71 | { |
285 | { |
72 | fd_set rfd; |
286 | q->qe[pri]->next = req; |
73 | FD_ZERO(&rfd); |
287 | q->qe[pri] = req; |
74 | FD_SET(respipe [0], &rfd); |
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75 | |
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76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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77 | } |
288 | } |
78 | } |
289 | else |
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290 | q->qe[pri] = q->qs[pri] = req; |
79 | |
291 | |
80 | static int |
292 | return q->size++; |
81 | poll_cb () |
293 | } |
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294 | |
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295 | aio_req reqq_shift (reqq *q) |
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296 | { |
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297 | int pri; |
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298 | |
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299 | if (!q->size) |
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300 | return 0; |
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301 | |
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302 | --q->size; |
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303 | |
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304 | for (pri = NUM_PRI; pri--; ) |
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305 | { |
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306 | aio_req req = q->qs[pri]; |
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307 | |
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308 | if (req) |
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309 | { |
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310 | if (!(q->qs[pri] = req->next)) |
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311 | q->qe[pri] = 0; |
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312 | |
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313 | return req; |
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314 | } |
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315 | } |
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316 | |
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317 | abort (); |
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318 | } |
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319 | |
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320 | static int poll_cb (); |
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321 | static int req_invoke (aio_req req); |
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322 | static void req_free (aio_req req); |
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323 | static void req_cancel (aio_req req); |
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324 | |
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325 | /* must be called at most once */ |
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326 | static SV *req_sv (aio_req req, const char *klass) |
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327 | { |
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328 | if (!req->self) |
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329 | { |
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330 | req->self = (SV *)newHV (); |
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331 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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332 | } |
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333 | |
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334 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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335 | } |
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336 | |
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337 | static aio_req SvAIO_REQ (SV *sv) |
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338 | { |
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339 | MAGIC *mg; |
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340 | |
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341 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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342 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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343 | |
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344 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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345 | |
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346 | return mg ? (aio_req)mg->mg_ptr : 0; |
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347 | } |
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348 | |
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349 | static void aio_grp_feed (aio_req grp) |
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350 | { |
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351 | block_sig (); |
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352 | |
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353 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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354 | { |
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355 | int old_len = grp->size; |
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356 | |
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357 | if (grp->sv2 && SvOK (grp->sv2)) |
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358 | { |
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359 | dSP; |
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360 | |
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361 | ENTER; |
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362 | SAVETMPS; |
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363 | PUSHMARK (SP); |
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364 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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365 | PUTBACK; |
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366 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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367 | SPAGAIN; |
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368 | FREETMPS; |
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369 | LEAVE; |
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370 | } |
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371 | |
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372 | /* stop if no progress has been made */ |
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373 | if (old_len == grp->size) |
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374 | { |
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375 | SvREFCNT_dec (grp->sv2); |
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376 | grp->sv2 = 0; |
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377 | break; |
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378 | } |
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379 | } |
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380 | |
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381 | unblock_sig (); |
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382 | } |
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383 | |
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384 | static void aio_grp_dec (aio_req grp) |
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385 | { |
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386 | --grp->size; |
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387 | |
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388 | /* call feeder, if applicable */ |
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389 | aio_grp_feed (grp); |
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390 | |
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391 | /* finish, if done */ |
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392 | if (!grp->size && grp->int1) |
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393 | { |
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394 | block_sig (); |
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395 | |
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396 | if (!req_invoke (grp)) |
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397 | { |
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398 | req_free (grp); |
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399 | unblock_sig (); |
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400 | croak (0); |
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401 | } |
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402 | |
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403 | req_free (grp); |
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404 | unblock_sig (); |
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405 | } |
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406 | } |
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407 | |
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408 | static int req_invoke (aio_req req) |
82 | { |
409 | { |
83 | dSP; |
410 | dSP; |
84 | int count = 0; |
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85 | aio_req req, prv; |
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86 | |
411 | |
87 | pthread_mutex_lock (&reslock); |
412 | if (req->flags & FLAG_SV2_RO_OFF) |
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413 | SvREADONLY_off (req->sv2); |
88 | |
414 | |
89 | { |
415 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
90 | /* read any signals sent by the worker threads */ |
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91 | char buf [32]; |
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92 | while (read (respipe [0], buf, 32) > 0) |
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93 | ; |
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94 | } |
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95 | |
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96 | req = ress; |
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97 | ress = rese = 0; |
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98 | |
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99 | pthread_mutex_unlock (&reslock); |
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100 | |
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101 | while (req) |
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102 | { |
416 | { |
103 | nreqs--; |
417 | ENTER; |
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418 | SAVETMPS; |
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419 | PUSHMARK (SP); |
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420 | EXTEND (SP, 1); |
104 | |
421 | |
105 | if (req->type == REQ_QUIT) |
422 | switch (req->type) |
106 | started--; |
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107 | else |
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108 | { |
423 | { |
109 | int errorno = errno; |
424 | case REQ_READDIR: |
110 | errno = req->errorno; |
|
|
111 | |
|
|
112 | if (req->type == REQ_READ) |
|
|
113 | SvCUR_set (req->data, req->dataoffset |
|
|
114 | + req->result > 0 ? req->result : 0); |
|
|
115 | |
|
|
116 | if (req->data) |
|
|
117 | SvREFCNT_dec (req->data); |
|
|
118 | |
|
|
119 | if (req->fh) |
|
|
120 | SvREFCNT_dec (req->fh); |
|
|
121 | |
|
|
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
123 | { |
425 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
426 | SV *rv = &PL_sv_undef; |
125 | PL_laststatval = req->result; |
|
|
126 | PL_statcache = *(req->statdata); |
|
|
127 | |
427 | |
128 | Safefree (req->statdata); |
428 | if (req->result >= 0) |
|
|
429 | { |
|
|
430 | int i; |
|
|
431 | char *buf = req->ptr2; |
|
|
432 | AV *av = newAV (); |
|
|
433 | |
|
|
434 | av_extend (av, req->result - 1); |
|
|
435 | |
|
|
436 | for (i = 0; i < req->result; ++i) |
|
|
437 | { |
|
|
438 | SV *sv = newSVpv (buf, 0); |
|
|
439 | |
|
|
440 | av_store (av, i, sv); |
|
|
441 | buf += SvCUR (sv) + 1; |
|
|
442 | } |
|
|
443 | |
|
|
444 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
445 | } |
|
|
446 | |
|
|
447 | PUSHs (rv); |
129 | } |
448 | } |
|
|
449 | break; |
130 | |
450 | |
131 | ENTER; |
451 | case REQ_OPEN: |
132 | PUSHMARK (SP); |
|
|
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
134 | |
|
|
135 | if (req->type == REQ_OPEN) |
|
|
136 | { |
452 | { |
137 | /* convert fd to fh */ |
453 | /* convert fd to fh */ |
138 | SV *fh; |
454 | SV *fh; |
139 | |
455 | |
|
|
456 | PUSHs (sv_2mortal (newSViv (req->result))); |
140 | PUTBACK; |
457 | PUTBACK; |
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
458 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
142 | SPAGAIN; |
459 | SPAGAIN; |
143 | |
460 | |
144 | fh = SvREFCNT_inc (POPs); |
461 | fh = POPs; |
145 | |
|
|
146 | PUSHMARK (SP); |
462 | PUSHMARK (SP); |
147 | XPUSHs (sv_2mortal (fh)); |
463 | XPUSHs (fh); |
148 | } |
464 | } |
|
|
465 | break; |
149 | |
466 | |
150 | if (SvOK (req->callback)) |
467 | case REQ_GROUP: |
|
|
468 | req->int1 = 2; /* mark group as finished */ |
|
|
469 | |
|
|
470 | if (req->sv1) |
151 | { |
471 | { |
152 | PUTBACK; |
472 | int i; |
153 | call_sv (req->callback, G_VOID | G_EVAL); |
473 | AV *av = (AV *)req->sv1; |
154 | SPAGAIN; |
474 | |
|
|
475 | EXTEND (SP, AvFILL (av) + 1); |
|
|
476 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
477 | PUSHs (*av_fetch (av, i, 0)); |
155 | } |
478 | } |
|
|
479 | break; |
156 | |
480 | |
157 | LEAVE; |
481 | case REQ_NOP: |
|
|
482 | case REQ_BUSY: |
|
|
483 | break; |
|
|
484 | |
|
|
485 | case REQ_READLINK: |
|
|
486 | if (req->result > 0) |
158 | |
487 | { |
159 | if (req->callback) |
488 | SvCUR_set (req->sv2, req->result); |
160 | SvREFCNT_dec (req->callback); |
489 | *SvEND (req->sv2) = 0; |
|
|
490 | PUSHs (req->sv2); |
|
|
491 | } |
|
|
492 | break; |
161 | |
493 | |
162 | errno = errorno; |
494 | case REQ_STAT: |
163 | count++; |
495 | case REQ_LSTAT: |
|
|
496 | case REQ_FSTAT: |
|
|
497 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
498 | PL_laststatval = req->result; |
|
|
499 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
500 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
501 | break; |
|
|
502 | |
|
|
503 | case REQ_READ: |
|
|
504 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
505 | *SvEND (req->sv2) = 0; |
|
|
506 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
507 | break; |
|
|
508 | |
|
|
509 | default: |
|
|
510 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
511 | break; |
164 | } |
512 | } |
165 | |
513 | |
166 | prv = req; |
514 | errno = req->errorno; |
167 | req = req->next; |
|
|
168 | Safefree (prv); |
|
|
169 | |
515 | |
170 | /* TODO: croak on errors? */ |
516 | PUTBACK; |
|
|
517 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
518 | SPAGAIN; |
|
|
519 | |
|
|
520 | FREETMPS; |
|
|
521 | LEAVE; |
171 | } |
522 | } |
172 | |
523 | |
173 | return count; |
524 | if (req->grp) |
|
|
525 | { |
|
|
526 | aio_req grp = req->grp; |
|
|
527 | |
|
|
528 | /* unlink request */ |
|
|
529 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
530 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
531 | |
|
|
532 | if (grp->grp_first == req) |
|
|
533 | grp->grp_first = req->grp_next; |
|
|
534 | |
|
|
535 | aio_grp_dec (grp); |
|
|
536 | } |
|
|
537 | |
|
|
538 | return !SvTRUE (ERRSV); |
|
|
539 | } |
|
|
540 | |
|
|
541 | static void req_free (aio_req req) |
|
|
542 | { |
|
|
543 | if (req->self) |
|
|
544 | { |
|
|
545 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
546 | SvREFCNT_dec (req->self); |
|
|
547 | } |
|
|
548 | |
|
|
549 | SvREFCNT_dec (req->sv1); |
|
|
550 | SvREFCNT_dec (req->sv2); |
|
|
551 | SvREFCNT_dec (req->callback); |
|
|
552 | |
|
|
553 | if (req->flags & FLAG_PTR2_FREE) |
|
|
554 | free (req->ptr2); |
|
|
555 | |
|
|
556 | Safefree (req); |
|
|
557 | } |
|
|
558 | |
|
|
559 | static void req_cancel_subs (aio_req grp) |
|
|
560 | { |
|
|
561 | aio_req sub; |
|
|
562 | |
|
|
563 | if (grp->type != REQ_GROUP) |
|
|
564 | return; |
|
|
565 | |
|
|
566 | SvREFCNT_dec (grp->sv2); |
|
|
567 | grp->sv2 = 0; |
|
|
568 | |
|
|
569 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
570 | req_cancel (sub); |
|
|
571 | } |
|
|
572 | |
|
|
573 | static void req_cancel (aio_req req) |
|
|
574 | { |
|
|
575 | req->flags |= FLAG_CANCELLED; |
|
|
576 | |
|
|
577 | req_cancel_subs (req); |
174 | } |
578 | } |
175 | |
579 | |
176 | static void *aio_proc(void *arg); |
580 | static void *aio_proc(void *arg); |
177 | |
581 | |
178 | static void |
|
|
179 | start_thread (void) |
582 | static void start_thread (void) |
180 | { |
583 | { |
181 | sigset_t fullsigset, oldsigset; |
584 | worker *wrk = calloc (1, sizeof (worker)); |
182 | pthread_t tid; |
|
|
183 | pthread_attr_t attr; |
|
|
184 | |
585 | |
185 | pthread_attr_init (&attr); |
586 | if (!wrk) |
186 | pthread_attr_setstacksize (&attr, STACKSIZE); |
587 | croak ("unable to allocate worker thread data"); |
187 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
188 | |
588 | |
189 | sigfillset (&fullsigset); |
589 | LOCK (wrklock); |
190 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
191 | |
590 | |
192 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
591 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
193 | started++; |
|
|
194 | |
|
|
195 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
196 | } |
|
|
197 | |
|
|
198 | static void |
|
|
199 | send_req (aio_req req) |
|
|
200 | { |
|
|
201 | nreqs++; |
|
|
202 | |
|
|
203 | pthread_mutex_lock (&reqlock); |
|
|
204 | |
|
|
205 | req->next = 0; |
|
|
206 | |
|
|
207 | if (reqe) |
|
|
208 | { |
592 | { |
209 | reqe->next = req; |
593 | wrk->prev = &wrk_first; |
210 | reqe = req; |
594 | wrk->next = wrk_first.next; |
|
|
595 | wrk_first.next->prev = wrk; |
|
|
596 | wrk_first.next = wrk; |
|
|
597 | ++started; |
211 | } |
598 | } |
212 | else |
599 | else |
213 | reqe = reqs = req; |
600 | free (wrk); |
214 | |
601 | |
215 | pthread_cond_signal (&reqwait); |
602 | UNLOCK (wrklock); |
216 | pthread_mutex_unlock (&reqlock); |
603 | } |
217 | |
604 | |
218 | while (nreqs > max_outstanding) |
605 | static void maybe_start_thread () |
|
|
606 | { |
|
|
607 | if (get_nthreads () >= wanted) |
|
|
608 | return; |
|
|
609 | |
|
|
610 | /* todo: maybe use idle here, but might be less exact */ |
|
|
611 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
612 | return; |
|
|
613 | |
|
|
614 | start_thread (); |
|
|
615 | } |
|
|
616 | |
|
|
617 | static void req_send (aio_req req) |
|
|
618 | { |
|
|
619 | block_sig (); |
|
|
620 | |
|
|
621 | ++nreqs; |
|
|
622 | |
|
|
623 | LOCK (reqlock); |
|
|
624 | ++nready; |
|
|
625 | reqq_push (&req_queue, req); |
|
|
626 | COND_SIGNAL (reqwait); |
|
|
627 | UNLOCK (reqlock); |
|
|
628 | |
|
|
629 | unblock_sig (); |
|
|
630 | |
|
|
631 | maybe_start_thread (); |
|
|
632 | } |
|
|
633 | |
|
|
634 | static void end_thread (void) |
|
|
635 | { |
|
|
636 | aio_req req; |
|
|
637 | |
|
|
638 | Newz (0, req, 1, aio_cb); |
|
|
639 | |
|
|
640 | req->type = REQ_QUIT; |
|
|
641 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
642 | |
|
|
643 | LOCK (reqlock); |
|
|
644 | reqq_push (&req_queue, req); |
|
|
645 | COND_SIGNAL (reqwait); |
|
|
646 | UNLOCK (reqlock); |
|
|
647 | |
|
|
648 | LOCK (wrklock); |
|
|
649 | --started; |
|
|
650 | UNLOCK (wrklock); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static void set_max_idle (int nthreads) |
|
|
654 | { |
|
|
655 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
656 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
657 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
658 | } |
|
|
659 | |
|
|
660 | static void min_parallel (int nthreads) |
|
|
661 | { |
|
|
662 | if (wanted < nthreads) |
|
|
663 | wanted = nthreads; |
|
|
664 | } |
|
|
665 | |
|
|
666 | static void max_parallel (int nthreads) |
|
|
667 | { |
|
|
668 | if (wanted > nthreads) |
|
|
669 | wanted = nthreads; |
|
|
670 | |
|
|
671 | while (started > wanted) |
|
|
672 | end_thread (); |
|
|
673 | } |
|
|
674 | |
|
|
675 | static void poll_wait () |
|
|
676 | { |
|
|
677 | fd_set rfd; |
|
|
678 | |
|
|
679 | while (nreqs) |
219 | { |
680 | { |
220 | poll_wait (); |
681 | int size; |
221 | poll_cb (); |
682 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
683 | size = res_queue.size; |
|
|
684 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
685 | |
|
|
686 | if (size) |
|
|
687 | return; |
|
|
688 | |
|
|
689 | maybe_start_thread (); |
|
|
690 | |
|
|
691 | FD_ZERO(&rfd); |
|
|
692 | FD_SET(respipe [0], &rfd); |
|
|
693 | |
|
|
694 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
222 | } |
695 | } |
223 | } |
696 | } |
224 | |
697 | |
225 | static void |
698 | static int poll_cb () |
226 | end_thread (void) |
|
|
227 | { |
699 | { |
|
|
700 | dSP; |
|
|
701 | int count = 0; |
|
|
702 | int maxreqs = max_poll_reqs; |
|
|
703 | int do_croak = 0; |
|
|
704 | struct timeval tv_start, tv_now; |
228 | aio_req req; |
705 | aio_req req; |
229 | New (0, req, 1, aio_cb); |
|
|
230 | req->type = REQ_QUIT; |
|
|
231 | |
706 | |
232 | send_req (req); |
707 | if (max_poll_time) |
233 | } |
708 | gettimeofday (&tv_start, 0); |
234 | |
709 | |
235 | static void * |
710 | block_sig (); |
236 | aio_proc (void *thr_arg) |
|
|
237 | { |
|
|
238 | aio_req req; |
|
|
239 | int type; |
|
|
240 | |
711 | |
241 | do |
712 | for (;;) |
242 | { |
713 | { |
243 | pthread_mutex_lock (&reqlock); |
|
|
244 | |
|
|
245 | for (;;) |
714 | for (;;) |
246 | { |
715 | { |
247 | req = reqs; |
716 | maybe_start_thread (); |
248 | |
717 | |
|
|
718 | LOCK (reslock); |
|
|
719 | req = reqq_shift (&res_queue); |
|
|
720 | |
249 | if (reqs) |
721 | if (req) |
250 | { |
722 | { |
251 | reqs = reqs->next; |
723 | --npending; |
252 | if (!reqs) reqe = 0; |
724 | |
|
|
725 | if (!res_queue.size) |
|
|
726 | { |
|
|
727 | /* read any signals sent by the worker threads */ |
|
|
728 | char buf [4]; |
|
|
729 | while (read (respipe [0], buf, 4) == 4) |
|
|
730 | ; |
|
|
731 | } |
253 | } |
732 | } |
|
|
733 | |
|
|
734 | UNLOCK (reslock); |
|
|
735 | |
|
|
736 | if (!req) |
|
|
737 | break; |
|
|
738 | |
|
|
739 | --nreqs; |
|
|
740 | |
|
|
741 | if (req->type == REQ_GROUP && req->size) |
|
|
742 | { |
|
|
743 | req->int1 = 1; /* mark request as delayed */ |
|
|
744 | continue; |
|
|
745 | } |
|
|
746 | else |
|
|
747 | { |
|
|
748 | if (!req_invoke (req)) |
|
|
749 | { |
|
|
750 | req_free (req); |
|
|
751 | unblock_sig (); |
|
|
752 | croak (0); |
|
|
753 | } |
|
|
754 | |
|
|
755 | count++; |
|
|
756 | } |
|
|
757 | |
|
|
758 | req_free (req); |
|
|
759 | |
|
|
760 | if (maxreqs && !--maxreqs) |
|
|
761 | break; |
|
|
762 | |
|
|
763 | if (max_poll_time) |
|
|
764 | { |
|
|
765 | gettimeofday (&tv_now, 0); |
|
|
766 | |
|
|
767 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
768 | break; |
|
|
769 | } |
|
|
770 | } |
|
|
771 | |
|
|
772 | if (nreqs <= max_outstanding) |
|
|
773 | break; |
|
|
774 | |
|
|
775 | poll_wait (); |
|
|
776 | |
|
|
777 | ++maxreqs; |
|
|
778 | } |
|
|
779 | |
|
|
780 | unblock_sig (); |
|
|
781 | return count; |
|
|
782 | } |
|
|
783 | |
|
|
784 | static void create_pipe () |
|
|
785 | { |
|
|
786 | if (pipe (respipe)) |
|
|
787 | croak ("unable to initialize result pipe"); |
|
|
788 | |
|
|
789 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
790 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
791 | |
|
|
792 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
793 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
794 | } |
|
|
795 | |
|
|
796 | /*****************************************************************************/ |
|
|
797 | /* work around various missing functions */ |
|
|
798 | |
|
|
799 | #if !HAVE_PREADWRITE |
|
|
800 | # define pread aio_pread |
|
|
801 | # define pwrite aio_pwrite |
|
|
802 | |
|
|
803 | /* |
|
|
804 | * make our pread/pwrite safe against themselves, but not against |
|
|
805 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
806 | * but that's your problem, not mine. |
|
|
807 | */ |
|
|
808 | static mutex_t preadwritelock = MUTEX_INIT; |
|
|
809 | |
|
|
810 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
811 | { |
|
|
812 | ssize_t res; |
|
|
813 | off_t ooffset; |
|
|
814 | |
|
|
815 | LOCK (preadwritelock); |
|
|
816 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
817 | lseek (fd, offset, SEEK_SET); |
|
|
818 | res = read (fd, buf, count); |
|
|
819 | lseek (fd, ooffset, SEEK_SET); |
|
|
820 | UNLOCK (preadwritelock); |
|
|
821 | |
|
|
822 | return res; |
|
|
823 | } |
|
|
824 | |
|
|
825 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
826 | { |
|
|
827 | ssize_t res; |
|
|
828 | off_t ooffset; |
|
|
829 | |
|
|
830 | LOCK (preadwritelock); |
|
|
831 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
832 | lseek (fd, offset, SEEK_SET); |
|
|
833 | res = write (fd, buf, count); |
|
|
834 | lseek (fd, offset, SEEK_SET); |
|
|
835 | UNLOCK (preadwritelock); |
|
|
836 | |
|
|
837 | return res; |
|
|
838 | } |
|
|
839 | #endif |
|
|
840 | |
|
|
841 | #ifndef HAVE_FUTIMES |
|
|
842 | |
|
|
843 | # define utimes(path,times) aio_utimes (path, times) |
|
|
844 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
845 | |
|
|
846 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
847 | { |
|
|
848 | if (times) |
|
|
849 | { |
|
|
850 | struct utimbuf buf; |
|
|
851 | |
|
|
852 | buf.actime = times[0].tv_sec; |
|
|
853 | buf.modtime = times[1].tv_sec; |
|
|
854 | |
|
|
855 | return utime (filename, &buf); |
|
|
856 | } |
|
|
857 | else |
|
|
858 | return utime (filename, 0); |
|
|
859 | } |
|
|
860 | |
|
|
861 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
862 | { |
|
|
863 | errno = ENOSYS; |
|
|
864 | return -1; |
|
|
865 | } |
|
|
866 | |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #if !HAVE_FDATASYNC |
|
|
870 | # define fdatasync fsync |
|
|
871 | #endif |
|
|
872 | |
|
|
873 | #if !HAVE_READAHEAD |
|
|
874 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
875 | |
|
|
876 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
877 | { |
|
|
878 | dBUF; |
|
|
879 | |
|
|
880 | while (count > 0) |
|
|
881 | { |
|
|
882 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
|
|
883 | |
|
|
884 | pread (fd, aio_buf, len, offset); |
|
|
885 | offset += len; |
|
|
886 | count -= len; |
|
|
887 | } |
|
|
888 | |
|
|
889 | errno = 0; |
|
|
890 | } |
|
|
891 | |
|
|
892 | #endif |
|
|
893 | |
|
|
894 | #if !HAVE_READDIR_R |
|
|
895 | # define readdir_r aio_readdir_r |
|
|
896 | |
|
|
897 | static mutex_t readdirlock = MUTEX_INIT; |
|
|
898 | |
|
|
899 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
900 | { |
|
|
901 | struct dirent *e; |
|
|
902 | int errorno; |
|
|
903 | |
|
|
904 | LOCK (readdirlock); |
|
|
905 | |
|
|
906 | e = readdir (dirp); |
|
|
907 | errorno = errno; |
|
|
908 | |
|
|
909 | if (e) |
|
|
910 | { |
|
|
911 | *res = ent; |
|
|
912 | strcpy (ent->d_name, e->d_name); |
|
|
913 | } |
|
|
914 | else |
|
|
915 | *res = 0; |
|
|
916 | |
|
|
917 | UNLOCK (readdirlock); |
|
|
918 | |
|
|
919 | errno = errorno; |
|
|
920 | return e ? 0 : -1; |
|
|
921 | } |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | /* sendfile always needs emulation */ |
|
|
925 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
926 | { |
|
|
927 | ssize_t res; |
|
|
928 | |
|
|
929 | if (!count) |
|
|
930 | return 0; |
|
|
931 | |
|
|
932 | #if HAVE_SENDFILE |
|
|
933 | # if __linux |
|
|
934 | res = sendfile (ofd, ifd, &offset, count); |
|
|
935 | |
|
|
936 | # elif __freebsd |
|
|
937 | /* |
|
|
938 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
939 | * wasted on making it similar to other I/O functions. |
|
|
940 | */ |
|
|
941 | { |
|
|
942 | off_t sbytes; |
|
|
943 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
944 | |
|
|
945 | if (res < 0 && sbytes) |
|
|
946 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
947 | res = sbytes; |
|
|
948 | } |
|
|
949 | |
|
|
950 | # elif __hpux |
|
|
951 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
952 | |
|
|
953 | # elif __solaris |
|
|
954 | { |
|
|
955 | struct sendfilevec vec; |
|
|
956 | size_t sbytes; |
|
|
957 | |
|
|
958 | vec.sfv_fd = ifd; |
|
|
959 | vec.sfv_flag = 0; |
|
|
960 | vec.sfv_off = offset; |
|
|
961 | vec.sfv_len = count; |
|
|
962 | |
|
|
963 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
964 | |
|
|
965 | if (res < 0 && sbytes) |
|
|
966 | res = sbytes; |
|
|
967 | } |
|
|
968 | |
|
|
969 | # endif |
|
|
970 | #else |
|
|
971 | res = -1; |
|
|
972 | errno = ENOSYS; |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | if (res < 0 |
|
|
976 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
977 | #if __solaris |
|
|
978 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
979 | #endif |
|
|
980 | ) |
|
|
981 | ) |
|
|
982 | { |
|
|
983 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
984 | dBUF; |
|
|
985 | |
|
|
986 | res = 0; |
|
|
987 | |
|
|
988 | while (count) |
|
|
989 | { |
|
|
990 | ssize_t cnt; |
|
|
991 | |
|
|
992 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
993 | |
|
|
994 | if (cnt <= 0) |
|
|
995 | { |
|
|
996 | if (cnt && !res) res = -1; |
|
|
997 | break; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | cnt = write (ofd, aio_buf, cnt); |
|
|
1001 | |
|
|
1002 | if (cnt <= 0) |
|
|
1003 | { |
|
|
1004 | if (cnt && !res) res = -1; |
|
|
1005 | break; |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | offset += cnt; |
|
|
1009 | res += cnt; |
|
|
1010 | count -= cnt; |
|
|
1011 | } |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | return res; |
|
|
1015 | } |
|
|
1016 | |
|
|
1017 | /* read a full directory */ |
|
|
1018 | static void scandir_ (aio_req req, worker *self) |
|
|
1019 | { |
|
|
1020 | DIR *dirp; |
|
|
1021 | union |
|
|
1022 | { |
|
|
1023 | struct dirent d; |
|
|
1024 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
1025 | } *u; |
|
|
1026 | struct dirent *entp; |
|
|
1027 | char *name, *names; |
|
|
1028 | int memlen = 4096; |
|
|
1029 | int memofs = 0; |
|
|
1030 | int res = 0; |
|
|
1031 | int errorno; |
|
|
1032 | |
|
|
1033 | LOCK (wrklock); |
|
|
1034 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1035 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1036 | req->flags |= FLAG_PTR2_FREE; |
|
|
1037 | req->ptr2 = names = malloc (memlen); |
|
|
1038 | UNLOCK (wrklock); |
|
|
1039 | |
|
|
1040 | if (dirp && u && names) |
|
|
1041 | for (;;) |
|
|
1042 | { |
|
|
1043 | errno = 0; |
|
|
1044 | readdir_r (dirp, &u->d, &entp); |
|
|
1045 | |
|
|
1046 | if (!entp) |
|
|
1047 | break; |
|
|
1048 | |
|
|
1049 | name = entp->d_name; |
|
|
1050 | |
|
|
1051 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1052 | { |
|
|
1053 | int len = strlen (name) + 1; |
|
|
1054 | |
|
|
1055 | res++; |
|
|
1056 | |
|
|
1057 | while (memofs + len > memlen) |
|
|
1058 | { |
|
|
1059 | memlen *= 2; |
|
|
1060 | LOCK (wrklock); |
|
|
1061 | req->ptr2 = names = realloc (names, memlen); |
|
|
1062 | UNLOCK (wrklock); |
|
|
1063 | |
|
|
1064 | if (!names) |
|
|
1065 | break; |
|
|
1066 | } |
|
|
1067 | |
|
|
1068 | memcpy (names + memofs, name, len); |
|
|
1069 | memofs += len; |
|
|
1070 | } |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | if (errno) |
|
|
1074 | res = -1; |
|
|
1075 | |
|
|
1076 | req->result = res; |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | /*****************************************************************************/ |
|
|
1080 | |
|
|
1081 | static void *aio_proc (void *thr_arg) |
|
|
1082 | { |
|
|
1083 | aio_req req; |
|
|
1084 | struct timespec ts; |
|
|
1085 | worker *self = (worker *)thr_arg; |
|
|
1086 | |
|
|
1087 | /* try to distribute timeouts somewhat evenly */ |
|
|
1088 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1089 | * (1000000000UL / 1024UL); |
|
|
1090 | |
|
|
1091 | for (;;) |
|
|
1092 | { |
|
|
1093 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1094 | |
|
|
1095 | LOCK (reqlock); |
|
|
1096 | |
|
|
1097 | for (;;) |
|
|
1098 | { |
|
|
1099 | self->req = req = reqq_shift (&req_queue); |
254 | |
1100 | |
255 | if (req) |
1101 | if (req) |
256 | break; |
1102 | break; |
257 | |
1103 | |
258 | pthread_cond_wait (&reqwait, &reqlock); |
1104 | ++idle; |
|
|
1105 | |
|
|
1106 | if (COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1107 | == ETIMEDOUT) |
|
|
1108 | { |
|
|
1109 | if (idle > max_idle) |
|
|
1110 | { |
|
|
1111 | --idle; |
|
|
1112 | UNLOCK (reqlock); |
|
|
1113 | LOCK (wrklock); |
|
|
1114 | --started; |
|
|
1115 | UNLOCK (wrklock); |
|
|
1116 | goto quit; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1120 | COND_WAIT (reqwait, reqlock); |
|
|
1121 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | --idle; |
259 | } |
1125 | } |
260 | |
1126 | |
261 | pthread_mutex_unlock (&reqlock); |
1127 | --nready; |
|
|
1128 | |
|
|
1129 | UNLOCK (reqlock); |
262 | |
1130 | |
263 | errno = 0; /* strictly unnecessary */ |
1131 | errno = 0; /* strictly unnecessary */ |
264 | |
1132 | |
265 | type = req->type; |
1133 | if (!(req->flags & FLAG_CANCELLED)) |
266 | |
|
|
267 | switch (type) |
1134 | switch (req->type) |
|
|
1135 | { |
|
|
1136 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
|
|
1137 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
|
|
1138 | |
|
|
1139 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1140 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1141 | |
|
|
1142 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1143 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1144 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1145 | |
|
|
1146 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1147 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1148 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1149 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1150 | |
|
|
1151 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1152 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1153 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1154 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1155 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1156 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1157 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1158 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1159 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1160 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1161 | |
|
|
1162 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1163 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1164 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1165 | |
|
|
1166 | case REQ_BUSY: |
|
|
1167 | { |
|
|
1168 | struct timeval tv; |
|
|
1169 | |
|
|
1170 | tv.tv_sec = req->nv1; |
|
|
1171 | tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.; |
|
|
1172 | |
|
|
1173 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | case REQ_UTIME: |
|
|
1177 | case REQ_FUTIME: |
|
|
1178 | { |
|
|
1179 | struct timeval tv[2]; |
|
|
1180 | struct timeval *times; |
|
|
1181 | |
|
|
1182 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1183 | { |
|
|
1184 | tv[0].tv_sec = req->nv1; |
|
|
1185 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1186 | tv[1].tv_sec = req->nv2; |
|
|
1187 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1188 | |
|
|
1189 | times = tv; |
|
|
1190 | } |
|
|
1191 | else |
|
|
1192 | times = 0; |
|
|
1193 | |
|
|
1194 | |
|
|
1195 | req->result = req->type == REQ_FUTIME |
|
|
1196 | ? futimes (req->int1, times) |
|
|
1197 | : utimes (req->ptr1, times); |
|
|
1198 | } |
|
|
1199 | |
|
|
1200 | case REQ_GROUP: |
|
|
1201 | case REQ_NOP: |
|
|
1202 | break; |
|
|
1203 | |
|
|
1204 | case REQ_QUIT: |
|
|
1205 | goto quit; |
|
|
1206 | |
|
|
1207 | default: |
|
|
1208 | req->result = -1; |
|
|
1209 | break; |
|
|
1210 | } |
|
|
1211 | |
|
|
1212 | req->errorno = errno; |
|
|
1213 | |
|
|
1214 | LOCK (reslock); |
|
|
1215 | |
|
|
1216 | ++npending; |
|
|
1217 | |
|
|
1218 | if (!reqq_push (&res_queue, req)) |
268 | { |
1219 | { |
269 | #if HAVE_PREADWRITE |
|
|
270 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
271 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
272 | #else |
|
|
273 | # error "pread/pwrite cannot be emulated, fix your os" |
|
|
274 | #endif |
|
|
275 | |
|
|
276 | #if HAVE_READAHEAD |
|
|
277 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
278 | #else |
|
|
279 | // TODO: emulate |
|
|
280 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
281 | #endif |
|
|
282 | |
|
|
283 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
|
|
284 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
285 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
286 | |
|
|
287 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
288 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
289 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
290 | |
|
|
291 | case REQ_FDATASYNC: |
|
|
292 | #if HAVE_FDATASYNC |
|
|
293 | req->result = fdatasync (req->fd); break; |
|
|
294 | #endif |
|
|
295 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
296 | |
|
|
297 | case REQ_QUIT: |
|
|
298 | break; |
|
|
299 | |
|
|
300 | default: |
|
|
301 | req->result = ENOSYS; |
|
|
302 | break; |
|
|
303 | } |
|
|
304 | |
|
|
305 | req->errorno = errno; |
|
|
306 | |
|
|
307 | pthread_mutex_lock (&reslock); |
|
|
308 | |
|
|
309 | req->next = 0; |
|
|
310 | |
|
|
311 | if (rese) |
|
|
312 | { |
|
|
313 | rese->next = req; |
|
|
314 | rese = req; |
|
|
315 | } |
|
|
316 | else |
|
|
317 | { |
|
|
318 | rese = ress = req; |
|
|
319 | |
|
|
320 | /* write a dummy byte to the pipe so fh becomes ready */ |
1220 | /* write a dummy byte to the pipe so fh becomes ready */ |
321 | write (respipe [1], &respipe, 1); |
1221 | write (respipe [1], &respipe, 1); |
|
|
1222 | |
|
|
1223 | /* optionally signal the main thread asynchronously */ |
|
|
1224 | if (main_sig) |
|
|
1225 | pthread_kill (main_tid, main_sig); |
322 | } |
1226 | } |
323 | |
1227 | |
324 | pthread_mutex_unlock (&reslock); |
1228 | self->req = 0; |
|
|
1229 | worker_clear (self); |
|
|
1230 | |
|
|
1231 | UNLOCK (reslock); |
325 | } |
1232 | } |
326 | while (type != REQ_QUIT); |
1233 | |
|
|
1234 | quit: |
|
|
1235 | LOCK (wrklock); |
|
|
1236 | worker_free (self); |
|
|
1237 | UNLOCK (wrklock); |
327 | |
1238 | |
328 | return 0; |
1239 | return 0; |
329 | } |
1240 | } |
330 | |
1241 | |
|
|
1242 | /*****************************************************************************/ |
|
|
1243 | |
|
|
1244 | static void atfork_prepare (void) |
|
|
1245 | { |
|
|
1246 | LOCK (wrklock); |
|
|
1247 | LOCK (reqlock); |
|
|
1248 | LOCK (reslock); |
|
|
1249 | #if !HAVE_PREADWRITE |
|
|
1250 | LOCK (preadwritelock); |
|
|
1251 | #endif |
|
|
1252 | #if !HAVE_READDIR_R |
|
|
1253 | LOCK (readdirlock); |
|
|
1254 | #endif |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | static void atfork_parent (void) |
|
|
1258 | { |
|
|
1259 | #if !HAVE_READDIR_R |
|
|
1260 | UNLOCK (readdirlock); |
|
|
1261 | #endif |
|
|
1262 | #if !HAVE_PREADWRITE |
|
|
1263 | UNLOCK (preadwritelock); |
|
|
1264 | #endif |
|
|
1265 | UNLOCK (reslock); |
|
|
1266 | UNLOCK (reqlock); |
|
|
1267 | UNLOCK (wrklock); |
|
|
1268 | } |
|
|
1269 | |
|
|
1270 | static void atfork_child (void) |
|
|
1271 | { |
|
|
1272 | aio_req prv; |
|
|
1273 | |
|
|
1274 | while (prv = reqq_shift (&req_queue)) |
|
|
1275 | req_free (prv); |
|
|
1276 | |
|
|
1277 | while (prv = reqq_shift (&res_queue)) |
|
|
1278 | req_free (prv); |
|
|
1279 | |
|
|
1280 | while (wrk_first.next != &wrk_first) |
|
|
1281 | { |
|
|
1282 | worker *wrk = wrk_first.next; |
|
|
1283 | |
|
|
1284 | if (wrk->req) |
|
|
1285 | req_free (wrk->req); |
|
|
1286 | |
|
|
1287 | worker_clear (wrk); |
|
|
1288 | worker_free (wrk); |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | started = 0; |
|
|
1292 | idle = 0; |
|
|
1293 | nreqs = 0; |
|
|
1294 | nready = 0; |
|
|
1295 | npending = 0; |
|
|
1296 | |
|
|
1297 | close (respipe [0]); |
|
|
1298 | close (respipe [1]); |
|
|
1299 | create_pipe (); |
|
|
1300 | |
|
|
1301 | atfork_parent (); |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | #define dREQ \ |
|
|
1305 | aio_req req; \ |
|
|
1306 | int req_pri = next_pri; \ |
|
|
1307 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1308 | \ |
|
|
1309 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1310 | croak ("callback must be undef or of reference type"); \ |
|
|
1311 | \ |
|
|
1312 | Newz (0, req, 1, aio_cb); \ |
|
|
1313 | if (!req) \ |
|
|
1314 | croak ("out of memory during aio_req allocation"); \ |
|
|
1315 | \ |
|
|
1316 | req->callback = newSVsv (callback); \ |
|
|
1317 | req->pri = req_pri |
|
|
1318 | |
|
|
1319 | #define REQ_SEND \ |
|
|
1320 | req_send (req); \ |
|
|
1321 | \ |
|
|
1322 | if (GIMME_V != G_VOID) \ |
|
|
1323 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1324 | |
331 | MODULE = IO::AIO PACKAGE = IO::AIO |
1325 | MODULE = IO::AIO PACKAGE = IO::AIO |
332 | |
1326 | |
333 | PROTOTYPES: ENABLE |
1327 | PROTOTYPES: ENABLE |
334 | |
1328 | |
335 | BOOT: |
1329 | BOOT: |
336 | { |
1330 | { |
337 | if (pipe (respipe)) |
1331 | HV *stash = gv_stashpv ("IO::AIO", 1); |
338 | croak ("unable to initialize result pipe"); |
|
|
339 | |
1332 | |
340 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1333 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
341 | croak ("cannot set result pipe to nonblocking mode"); |
1334 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1335 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1336 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1337 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1338 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1339 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
342 | |
1340 | |
343 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
1341 | create_pipe (); |
344 | croak ("cannot set result pipe to nonblocking mode"); |
1342 | ATFORK (atfork_prepare, atfork_parent, atfork_child); |
345 | } |
1343 | } |
346 | |
1344 | |
347 | void |
1345 | void |
348 | min_parallel(nthreads) |
1346 | max_poll_reqs (int nreqs) |
349 | int nthreads |
|
|
350 | PROTOTYPE: $ |
1347 | PROTOTYPE: $ |
351 | CODE: |
1348 | CODE: |
352 | while (nthreads > started) |
1349 | max_poll_reqs = nreqs; |
353 | start_thread (); |
|
|
354 | |
1350 | |
355 | void |
1351 | void |
356 | max_parallel(nthreads) |
1352 | max_poll_time (double nseconds) |
357 | int nthreads |
|
|
358 | PROTOTYPE: $ |
1353 | PROTOTYPE: $ |
359 | CODE: |
1354 | CODE: |
360 | { |
1355 | max_poll_time = nseconds * AIO_TICKS; |
361 | int cur = started; |
|
|
362 | while (cur > nthreads) |
|
|
363 | { |
|
|
364 | end_thread (); |
|
|
365 | cur--; |
|
|
366 | } |
|
|
367 | |
1356 | |
368 | while (started > nthreads) |
1357 | void |
369 | { |
1358 | min_parallel (int nthreads) |
370 | poll_wait (); |
1359 | PROTOTYPE: $ |
371 | poll_cb (); |
1360 | |
372 | } |
1361 | void |
373 | } |
1362 | max_parallel (int nthreads) |
|
|
1363 | PROTOTYPE: $ |
|
|
1364 | |
|
|
1365 | void |
|
|
1366 | max_idle (int nthreads) |
|
|
1367 | PROTOTYPE: $ |
|
|
1368 | CODE: |
|
|
1369 | set_max_idle (nthreads); |
374 | |
1370 | |
375 | int |
1371 | int |
376 | max_outstanding(nreqs) |
1372 | max_outstanding (int maxreqs) |
377 | int nreqs |
1373 | PROTOTYPE: $ |
378 | PROTOTYPE: $ |
|
|
379 | CODE: |
1374 | CODE: |
380 | RETVAL = max_outstanding; |
1375 | RETVAL = max_outstanding; |
381 | max_outstanding = nreqs; |
1376 | max_outstanding = maxreqs; |
|
|
1377 | OUTPUT: |
|
|
1378 | RETVAL |
382 | |
1379 | |
383 | void |
1380 | void |
384 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1381 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
385 | SV * pathname |
|
|
386 | int flags |
|
|
387 | int mode |
|
|
388 | SV * callback |
|
|
389 | PROTOTYPE: $$$;$ |
1382 | PROTOTYPE: $$$;$ |
390 | CODE: |
1383 | PPCODE: |
391 | { |
1384 | { |
392 | aio_req req; |
1385 | dREQ; |
393 | |
|
|
394 | Newz (0, req, 1, aio_cb); |
|
|
395 | |
|
|
396 | if (!req) |
|
|
397 | croak ("out of memory during aio_req allocation"); |
|
|
398 | |
1386 | |
399 | req->type = REQ_OPEN; |
1387 | req->type = REQ_OPEN; |
400 | req->data = newSVsv (pathname); |
1388 | req->sv1 = newSVsv (pathname); |
401 | req->dataptr = SvPV_nolen (req->data); |
1389 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
402 | req->fd = flags; |
1390 | req->int1 = flags; |
403 | req->mode = mode; |
1391 | req->mode = mode; |
404 | req->callback = SvREFCNT_inc (callback); |
|
|
405 | |
1392 | |
406 | send_req (req); |
1393 | REQ_SEND; |
407 | } |
1394 | } |
408 | |
1395 | |
409 | void |
1396 | void |
410 | aio_close(fh,callback=&PL_sv_undef) |
1397 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
411 | SV * fh |
|
|
412 | SV * callback |
|
|
413 | PROTOTYPE: $;$ |
1398 | PROTOTYPE: $;$ |
414 | ALIAS: |
1399 | ALIAS: |
415 | aio_close = REQ_CLOSE |
1400 | aio_close = REQ_CLOSE |
416 | aio_fsync = REQ_FSYNC |
1401 | aio_fsync = REQ_FSYNC |
417 | aio_fdatasync = REQ_FDATASYNC |
1402 | aio_fdatasync = REQ_FDATASYNC |
418 | CODE: |
1403 | PPCODE: |
419 | { |
1404 | { |
420 | aio_req req; |
1405 | dREQ; |
421 | |
|
|
422 | Newz (0, req, 1, aio_cb); |
|
|
423 | |
|
|
424 | if (!req) |
|
|
425 | croak ("out of memory during aio_req allocation"); |
|
|
426 | |
1406 | |
427 | req->type = ix; |
1407 | req->type = ix; |
428 | req->fh = newSVsv (fh); |
1408 | req->sv1 = newSVsv (fh); |
429 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1409 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
430 | req->callback = SvREFCNT_inc (callback); |
|
|
431 | |
1410 | |
432 | send_req (req); |
1411 | REQ_SEND (req); |
433 | } |
1412 | } |
434 | |
1413 | |
435 | void |
1414 | void |
436 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1415 | aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) |
437 | SV * fh |
|
|
438 | UV offset |
|
|
439 | IV length |
|
|
440 | SV * data |
|
|
441 | IV dataoffset |
|
|
442 | SV * callback |
|
|
443 | ALIAS: |
1416 | ALIAS: |
444 | aio_read = REQ_READ |
1417 | aio_read = REQ_READ |
445 | aio_write = REQ_WRITE |
1418 | aio_write = REQ_WRITE |
446 | PROTOTYPE: $$$$$;$ |
1419 | PROTOTYPE: $$$$$;$ |
447 | CODE: |
1420 | PPCODE: |
448 | { |
1421 | { |
449 | aio_req req; |
|
|
450 | STRLEN svlen; |
1422 | STRLEN svlen; |
451 | char *svptr = SvPV (data, svlen); |
1423 | char *svptr = SvPVbyte (data, svlen); |
452 | |
1424 | |
453 | SvUPGRADE (data, SVt_PV); |
1425 | SvUPGRADE (data, SVt_PV); |
454 | SvPOK_on (data); |
1426 | SvPOK_on (data); |
455 | |
1427 | |
456 | if (dataoffset < 0) |
1428 | if (dataoffset < 0) |
… | |
… | |
466 | length = svlen - dataoffset; |
1438 | length = svlen - dataoffset; |
467 | } |
1439 | } |
468 | else |
1440 | else |
469 | { |
1441 | { |
470 | /* read: grow scalar as necessary */ |
1442 | /* read: grow scalar as necessary */ |
471 | svptr = SvGROW (data, length + dataoffset); |
1443 | svptr = SvGROW (data, length + dataoffset + 1); |
472 | } |
1444 | } |
473 | |
1445 | |
474 | if (length < 0) |
1446 | if (length < 0) |
475 | croak ("length must not be negative"); |
1447 | croak ("length must not be negative"); |
476 | |
1448 | |
477 | Newz (0, req, 1, aio_cb); |
1449 | { |
|
|
1450 | dREQ; |
478 | |
1451 | |
479 | if (!req) |
|
|
480 | croak ("out of memory during aio_req allocation"); |
|
|
481 | |
|
|
482 | req->type = ix; |
1452 | req->type = ix; |
483 | req->fh = newSVsv (fh); |
1453 | req->sv1 = newSVsv (fh); |
484 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1454 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
485 | : IoOFP (sv_2io (fh))); |
1455 | : IoOFP (sv_2io (fh))); |
486 | req->offset = offset; |
1456 | req->offs = offset; |
487 | req->length = length; |
1457 | req->size = length; |
488 | req->data = SvREFCNT_inc (data); |
1458 | req->sv2 = SvREFCNT_inc (data); |
489 | req->dataptr = (char *)svptr + dataoffset; |
1459 | req->ptr1 = (char *)svptr + dataoffset; |
490 | req->callback = SvREFCNT_inc (callback); |
1460 | req->stroffset = dataoffset; |
491 | |
1461 | |
492 | send_req (req); |
1462 | if (!SvREADONLY (data)) |
493 | } |
1463 | { |
|
|
1464 | SvREADONLY_on (data); |
|
|
1465 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1466 | } |
494 | |
1467 | |
|
|
1468 | REQ_SEND; |
|
|
1469 | } |
|
|
1470 | } |
|
|
1471 | |
495 | void |
1472 | void |
|
|
1473 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1474 | PROTOTYPE: $$;$ |
|
|
1475 | PPCODE: |
|
|
1476 | { |
|
|
1477 | SV *data; |
|
|
1478 | dREQ; |
|
|
1479 | |
|
|
1480 | data = newSV (NAME_MAX); |
|
|
1481 | SvPOK_on (data); |
|
|
1482 | |
|
|
1483 | req->type = REQ_READLINK; |
|
|
1484 | req->sv1 = newSVsv (path); |
|
|
1485 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1486 | req->sv2 = data; |
|
|
1487 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1488 | |
|
|
1489 | REQ_SEND; |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | void |
|
|
1493 | aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef) |
|
|
1494 | PROTOTYPE: $$$$;$ |
|
|
1495 | PPCODE: |
|
|
1496 | { |
|
|
1497 | dREQ; |
|
|
1498 | |
|
|
1499 | req->type = REQ_SENDFILE; |
|
|
1500 | req->sv1 = newSVsv (out_fh); |
|
|
1501 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1502 | req->sv2 = newSVsv (in_fh); |
|
|
1503 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1504 | req->offs = in_offset; |
|
|
1505 | req->size = length; |
|
|
1506 | |
|
|
1507 | REQ_SEND; |
|
|
1508 | } |
|
|
1509 | |
|
|
1510 | void |
496 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1511 | aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) |
497 | SV * fh |
|
|
498 | UV offset |
|
|
499 | IV length |
|
|
500 | SV * callback |
|
|
501 | PROTOTYPE: $$$;$ |
1512 | PROTOTYPE: $$$;$ |
502 | CODE: |
1513 | PPCODE: |
503 | { |
1514 | { |
504 | aio_req req; |
1515 | dREQ; |
505 | |
|
|
506 | if (length < 0) |
|
|
507 | croak ("length must not be negative"); |
|
|
508 | |
|
|
509 | Newz (0, req, 1, aio_cb); |
|
|
510 | |
|
|
511 | if (!req) |
|
|
512 | croak ("out of memory during aio_req allocation"); |
|
|
513 | |
1516 | |
514 | req->type = REQ_READAHEAD; |
1517 | req->type = REQ_READAHEAD; |
515 | req->fh = newSVsv (fh); |
1518 | req->sv1 = newSVsv (fh); |
516 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1519 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
517 | req->offset = offset; |
1520 | req->offs = offset; |
518 | req->length = length; |
1521 | req->size = length; |
519 | req->callback = SvREFCNT_inc (callback); |
|
|
520 | |
1522 | |
521 | send_req (req); |
1523 | REQ_SEND; |
522 | } |
1524 | } |
523 | |
1525 | |
524 | void |
1526 | void |
525 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1527 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
526 | SV * fh_or_path |
|
|
527 | SV * callback |
|
|
528 | ALIAS: |
1528 | ALIAS: |
529 | aio_stat = REQ_STAT |
1529 | aio_stat = REQ_STAT |
530 | aio_lstat = REQ_LSTAT |
1530 | aio_lstat = REQ_LSTAT |
531 | CODE: |
1531 | PPCODE: |
532 | { |
1532 | { |
533 | aio_req req; |
1533 | dREQ; |
534 | |
1534 | |
535 | Newz (0, req, 1, aio_cb); |
1535 | req->ptr2 = malloc (sizeof (Stat_t)); |
536 | |
|
|
537 | if (!req) |
1536 | if (!req->ptr2) |
538 | croak ("out of memory during aio_req allocation"); |
1537 | { |
539 | |
1538 | req_free (req); |
540 | New (0, req->statdata, 1, Stat_t); |
|
|
541 | |
|
|
542 | if (!req->statdata) |
|
|
543 | croak ("out of memory during aio_req->statdata allocation"); |
1539 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1540 | } |
|
|
1541 | |
|
|
1542 | req->flags |= FLAG_PTR2_FREE; |
|
|
1543 | req->sv1 = newSVsv (fh_or_path); |
544 | |
1544 | |
545 | if (SvPOK (fh_or_path)) |
1545 | if (SvPOK (fh_or_path)) |
546 | { |
1546 | { |
547 | req->type = ix; |
1547 | req->type = ix; |
548 | req->data = newSVsv (fh_or_path); |
|
|
549 | req->dataptr = SvPV_nolen (req->data); |
1548 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
550 | } |
1549 | } |
551 | else |
1550 | else |
552 | { |
1551 | { |
553 | req->type = REQ_FSTAT; |
1552 | req->type = REQ_FSTAT; |
554 | req->fh = newSVsv (fh_or_path); |
|
|
555 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1553 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
556 | } |
1554 | } |
557 | |
1555 | |
558 | req->callback = SvREFCNT_inc (callback); |
1556 | REQ_SEND; |
559 | |
|
|
560 | send_req (req); |
|
|
561 | } |
1557 | } |
562 | |
1558 | |
563 | void |
1559 | void |
|
|
1560 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1561 | PPCODE: |
|
|
1562 | { |
|
|
1563 | dREQ; |
|
|
1564 | |
|
|
1565 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1566 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1567 | req->sv1 = newSVsv (fh_or_path); |
|
|
1568 | |
|
|
1569 | if (SvPOK (fh_or_path)) |
|
|
1570 | { |
|
|
1571 | req->type = REQ_UTIME; |
|
|
1572 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1573 | } |
|
|
1574 | else |
|
|
1575 | { |
|
|
1576 | req->type = REQ_FUTIME; |
|
|
1577 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | REQ_SEND; |
|
|
1581 | } |
|
|
1582 | |
|
|
1583 | void |
|
|
1584 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1585 | PPCODE: |
|
|
1586 | { |
|
|
1587 | dREQ; |
|
|
1588 | |
|
|
1589 | req->mode = mode; |
|
|
1590 | req->sv1 = newSVsv (fh_or_path); |
|
|
1591 | |
|
|
1592 | if (SvPOK (fh_or_path)) |
|
|
1593 | { |
|
|
1594 | req->type = REQ_CHMOD; |
|
|
1595 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1596 | } |
|
|
1597 | else |
|
|
1598 | { |
|
|
1599 | req->type = REQ_FCHMOD; |
|
|
1600 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | REQ_SEND; |
|
|
1604 | } |
|
|
1605 | |
|
|
1606 | void |
|
|
1607 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1608 | PPCODE: |
|
|
1609 | { |
|
|
1610 | dREQ; |
|
|
1611 | |
|
|
1612 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1613 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1614 | req->sv1 = newSVsv (fh_or_path); |
|
|
1615 | |
|
|
1616 | if (SvPOK (fh_or_path)) |
|
|
1617 | { |
|
|
1618 | req->type = REQ_CHOWN; |
|
|
1619 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1620 | } |
|
|
1621 | else |
|
|
1622 | { |
|
|
1623 | req->type = REQ_FCHOWN; |
|
|
1624 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | REQ_SEND; |
|
|
1628 | } |
|
|
1629 | |
|
|
1630 | void |
564 | aio_unlink(pathname,callback=&PL_sv_undef) |
1631 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
565 | SV * pathname |
1632 | ALIAS: |
566 | SV * callback |
1633 | aio_unlink = REQ_UNLINK |
|
|
1634 | aio_rmdir = REQ_RMDIR |
|
|
1635 | aio_readdir = REQ_READDIR |
|
|
1636 | PPCODE: |
|
|
1637 | { |
|
|
1638 | dREQ; |
|
|
1639 | |
|
|
1640 | req->type = ix; |
|
|
1641 | req->sv1 = newSVsv (pathname); |
|
|
1642 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1643 | |
|
|
1644 | REQ_SEND; |
|
|
1645 | } |
|
|
1646 | |
|
|
1647 | void |
|
|
1648 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1649 | PPCODE: |
|
|
1650 | { |
|
|
1651 | dREQ; |
|
|
1652 | |
|
|
1653 | req->type = REQ_MKDIR; |
|
|
1654 | req->sv1 = newSVsv (pathname); |
|
|
1655 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1656 | req->mode = mode; |
|
|
1657 | |
|
|
1658 | REQ_SEND; |
|
|
1659 | } |
|
|
1660 | |
|
|
1661 | void |
|
|
1662 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1663 | ALIAS: |
|
|
1664 | aio_link = REQ_LINK |
|
|
1665 | aio_symlink = REQ_SYMLINK |
|
|
1666 | aio_rename = REQ_RENAME |
|
|
1667 | PPCODE: |
|
|
1668 | { |
|
|
1669 | dREQ; |
|
|
1670 | |
|
|
1671 | req->type = ix; |
|
|
1672 | req->sv2 = newSVsv (oldpath); |
|
|
1673 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1674 | req->sv1 = newSVsv (newpath); |
|
|
1675 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1676 | |
|
|
1677 | REQ_SEND; |
|
|
1678 | } |
|
|
1679 | |
|
|
1680 | void |
|
|
1681 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1682 | PPCODE: |
|
|
1683 | { |
|
|
1684 | dREQ; |
|
|
1685 | |
|
|
1686 | req->type = REQ_MKNOD; |
|
|
1687 | req->sv1 = newSVsv (pathname); |
|
|
1688 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1689 | req->mode = (mode_t)mode; |
|
|
1690 | req->offs = dev; |
|
|
1691 | |
|
|
1692 | REQ_SEND; |
|
|
1693 | } |
|
|
1694 | |
|
|
1695 | void |
|
|
1696 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1697 | PPCODE: |
|
|
1698 | { |
|
|
1699 | dREQ; |
|
|
1700 | |
|
|
1701 | req->type = REQ_BUSY; |
|
|
1702 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1703 | |
|
|
1704 | REQ_SEND; |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | void |
|
|
1708 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1709 | PROTOTYPE: ;$ |
|
|
1710 | PPCODE: |
|
|
1711 | { |
|
|
1712 | dREQ; |
|
|
1713 | |
|
|
1714 | req->type = REQ_GROUP; |
|
|
1715 | |
|
|
1716 | req_send (req); |
|
|
1717 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1718 | } |
|
|
1719 | |
|
|
1720 | void |
|
|
1721 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1722 | PPCODE: |
|
|
1723 | { |
|
|
1724 | dREQ; |
|
|
1725 | |
|
|
1726 | req->type = REQ_NOP; |
|
|
1727 | |
|
|
1728 | REQ_SEND; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | int |
|
|
1732 | aioreq_pri (int pri = 0) |
|
|
1733 | PROTOTYPE: ;$ |
567 | CODE: |
1734 | CODE: |
568 | { |
1735 | RETVAL = next_pri - PRI_BIAS; |
569 | aio_req req; |
1736 | if (items > 0) |
570 | |
1737 | { |
571 | Newz (0, req, 1, aio_cb); |
1738 | if (pri < PRI_MIN) pri = PRI_MIN; |
572 | |
1739 | if (pri > PRI_MAX) pri = PRI_MAX; |
573 | if (!req) |
1740 | next_pri = pri + PRI_BIAS; |
574 | croak ("out of memory during aio_req allocation"); |
1741 | } |
575 | |
1742 | OUTPUT: |
576 | req->type = REQ_UNLINK; |
1743 | RETVAL |
577 | req->data = newSVsv (pathname); |
|
|
578 | req->dataptr = SvPV_nolen (req->data); |
|
|
579 | req->callback = SvREFCNT_inc (callback); |
|
|
580 | |
|
|
581 | send_req (req); |
|
|
582 | } |
|
|
583 | |
1744 | |
584 | void |
1745 | void |
|
|
1746 | aioreq_nice (int nice = 0) |
|
|
1747 | CODE: |
|
|
1748 | nice = next_pri - nice; |
|
|
1749 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1750 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1751 | next_pri = nice + PRI_BIAS; |
|
|
1752 | |
|
|
1753 | void |
585 | flush() |
1754 | flush () |
586 | PROTOTYPE: |
1755 | PROTOTYPE: |
587 | CODE: |
1756 | CODE: |
588 | while (nreqs) |
1757 | while (nreqs) |
589 | { |
1758 | { |
590 | poll_wait (); |
1759 | poll_wait (); |
591 | poll_cb (); |
1760 | poll_cb (); |
592 | } |
1761 | } |
593 | |
1762 | |
594 | void |
1763 | int |
595 | poll() |
1764 | poll() |
596 | PROTOTYPE: |
1765 | PROTOTYPE: |
597 | CODE: |
1766 | CODE: |
598 | if (nreqs) |
|
|
599 | { |
|
|
600 | poll_wait (); |
1767 | poll_wait (); |
601 | poll_cb (); |
1768 | RETVAL = poll_cb (); |
602 | } |
1769 | OUTPUT: |
|
|
1770 | RETVAL |
603 | |
1771 | |
604 | int |
1772 | int |
605 | poll_fileno() |
1773 | poll_fileno() |
606 | PROTOTYPE: |
1774 | PROTOTYPE: |
607 | CODE: |
1775 | CODE: |
… | |
… | |
619 | |
1787 | |
620 | void |
1788 | void |
621 | poll_wait() |
1789 | poll_wait() |
622 | PROTOTYPE: |
1790 | PROTOTYPE: |
623 | CODE: |
1791 | CODE: |
624 | if (nreqs) |
|
|
625 | poll_wait (); |
1792 | poll_wait (); |
|
|
1793 | |
|
|
1794 | void |
|
|
1795 | setsig (int signum = SIGIO) |
|
|
1796 | PROTOTYPE: ;$ |
|
|
1797 | CODE: |
|
|
1798 | { |
|
|
1799 | if (block_sig_level) |
|
|
1800 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1801 | |
|
|
1802 | LOCK (reslock); |
|
|
1803 | main_tid = pthread_self (); |
|
|
1804 | main_sig = signum; |
|
|
1805 | UNLOCK (reslock); |
|
|
1806 | |
|
|
1807 | if (main_sig && npending) |
|
|
1808 | pthread_kill (main_tid, main_sig); |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | void |
|
|
1812 | aio_block (SV *cb) |
|
|
1813 | PROTOTYPE: & |
|
|
1814 | PPCODE: |
|
|
1815 | { |
|
|
1816 | int count; |
|
|
1817 | |
|
|
1818 | block_sig (); |
|
|
1819 | PUSHMARK (SP); |
|
|
1820 | PUTBACK; |
|
|
1821 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1822 | SPAGAIN; |
|
|
1823 | unblock_sig (); |
|
|
1824 | |
|
|
1825 | if (SvTRUE (ERRSV)) |
|
|
1826 | croak (0); |
|
|
1827 | |
|
|
1828 | XSRETURN (count); |
|
|
1829 | } |
626 | |
1830 | |
627 | int |
1831 | int |
628 | nreqs() |
1832 | nreqs() |
629 | PROTOTYPE: |
1833 | PROTOTYPE: |
630 | CODE: |
1834 | CODE: |
631 | RETVAL = nreqs; |
1835 | RETVAL = nreqs; |
632 | OUTPUT: |
1836 | OUTPUT: |
633 | RETVAL |
1837 | RETVAL |
634 | |
1838 | |
|
|
1839 | int |
|
|
1840 | nready() |
|
|
1841 | PROTOTYPE: |
|
|
1842 | CODE: |
|
|
1843 | RETVAL = get_nready (); |
|
|
1844 | OUTPUT: |
|
|
1845 | RETVAL |
|
|
1846 | |
|
|
1847 | int |
|
|
1848 | npending() |
|
|
1849 | PROTOTYPE: |
|
|
1850 | CODE: |
|
|
1851 | RETVAL = get_npending (); |
|
|
1852 | OUTPUT: |
|
|
1853 | RETVAL |
|
|
1854 | |
|
|
1855 | int |
|
|
1856 | nthreads() |
|
|
1857 | PROTOTYPE: |
|
|
1858 | CODE: |
|
|
1859 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1860 | RETVAL = started; |
|
|
1861 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1862 | OUTPUT: |
|
|
1863 | RETVAL |
|
|
1864 | |
|
|
1865 | PROTOTYPES: DISABLE |
|
|
1866 | |
|
|
1867 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1868 | |
|
|
1869 | void |
|
|
1870 | cancel (aio_req_ornot req) |
|
|
1871 | CODE: |
|
|
1872 | req_cancel (req); |
|
|
1873 | |
|
|
1874 | void |
|
|
1875 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1876 | CODE: |
|
|
1877 | SvREFCNT_dec (req->callback); |
|
|
1878 | req->callback = newSVsv (callback); |
|
|
1879 | |
|
|
1880 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1881 | |
|
|
1882 | void |
|
|
1883 | add (aio_req grp, ...) |
|
|
1884 | PPCODE: |
|
|
1885 | { |
|
|
1886 | int i; |
|
|
1887 | aio_req req; |
|
|
1888 | |
|
|
1889 | if (main_sig && !block_sig_level) |
|
|
1890 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1891 | |
|
|
1892 | if (grp->int1 == 2) |
|
|
1893 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1894 | |
|
|
1895 | for (i = 1; i < items; ++i ) |
|
|
1896 | { |
|
|
1897 | if (GIMME_V != G_VOID) |
|
|
1898 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1899 | |
|
|
1900 | req = SvAIO_REQ (ST (i)); |
|
|
1901 | |
|
|
1902 | if (req) |
|
|
1903 | { |
|
|
1904 | ++grp->size; |
|
|
1905 | req->grp = grp; |
|
|
1906 | |
|
|
1907 | req->grp_prev = 0; |
|
|
1908 | req->grp_next = grp->grp_first; |
|
|
1909 | |
|
|
1910 | if (grp->grp_first) |
|
|
1911 | grp->grp_first->grp_prev = req; |
|
|
1912 | |
|
|
1913 | grp->grp_first = req; |
|
|
1914 | } |
|
|
1915 | } |
|
|
1916 | } |
|
|
1917 | |
|
|
1918 | void |
|
|
1919 | cancel_subs (aio_req_ornot req) |
|
|
1920 | CODE: |
|
|
1921 | req_cancel_subs (req); |
|
|
1922 | |
|
|
1923 | void |
|
|
1924 | result (aio_req grp, ...) |
|
|
1925 | CODE: |
|
|
1926 | { |
|
|
1927 | int i; |
|
|
1928 | AV *av; |
|
|
1929 | |
|
|
1930 | grp->errorno = errno; |
|
|
1931 | |
|
|
1932 | av = newAV (); |
|
|
1933 | |
|
|
1934 | for (i = 1; i < items; ++i ) |
|
|
1935 | av_push (av, newSVsv (ST (i))); |
|
|
1936 | |
|
|
1937 | SvREFCNT_dec (grp->sv1); |
|
|
1938 | grp->sv1 = (SV *)av; |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | void |
|
|
1942 | errno (aio_req grp, int errorno = errno) |
|
|
1943 | CODE: |
|
|
1944 | grp->errorno = errorno; |
|
|
1945 | |
|
|
1946 | void |
|
|
1947 | limit (aio_req grp, int limit) |
|
|
1948 | CODE: |
|
|
1949 | grp->int2 = limit; |
|
|
1950 | aio_grp_feed (grp); |
|
|
1951 | |
|
|
1952 | void |
|
|
1953 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1954 | CODE: |
|
|
1955 | { |
|
|
1956 | SvREFCNT_dec (grp->sv2); |
|
|
1957 | grp->sv2 = newSVsv (callback); |
|
|
1958 | |
|
|
1959 | if (grp->int2 <= 0) |
|
|
1960 | grp->int2 = 2; |
|
|
1961 | |
|
|
1962 | aio_grp_feed (grp); |
|
|
1963 | } |
|
|
1964 | |