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" |
9 | #include "autoconf/config.h" |
9 | |
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> |
10 | #include <sys/types.h> |
16 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
12 | |
18 | #include <limits.h> |
13 | #include <unistd.h> |
19 | #include <unistd.h> |
14 | #include <fcntl.h> |
20 | #include <fcntl.h> |
15 | #include <signal.h> |
21 | #include <signal.h> |
16 | #include <sched.h> |
22 | #include <sched.h> |
17 | |
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18 | #include <pthread.h> |
23 | #include <utime.h> |
19 | |
24 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
25 | #if HAVE_SENDFILE |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
26 | # if __linux |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
27 | # include <sys/sendfile.h> |
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28 | # elif __freebsd |
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29 | # include <sys/socket.h> |
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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> |
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35 | # else |
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36 | # error sendfile support requested but not available |
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37 | # endif |
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38 | #endif |
23 | |
39 | |
24 | #if __ia64 |
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 */ |
25 | # define STACKSIZE 65536 |
49 | #define AIO_BUFSIZE 65536 |
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50 | |
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51 | /* use NV for 32 bit perls as it allows larger offsets */ |
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52 | #if IVSIZE >= 8 |
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53 | # define SvVAL64 SvIV |
26 | #else |
54 | #else |
27 | # define STACKSIZE 4096 |
55 | # define SvVAL64 SvNV |
28 | #endif |
56 | #endif |
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57 | |
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58 | #define dBUF \ |
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59 | char *aio_buf; \ |
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60 | LOCK (wrklock); \ |
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61 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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62 | UNLOCK (wrklock); \ |
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63 | if (!aio_buf) \ |
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64 | return -1; |
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65 | |
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66 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
29 | |
67 | |
30 | enum { |
68 | enum { |
31 | REQ_QUIT, |
69 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
70 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
71 | REQ_READ, REQ_WRITE, |
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72 | REQ_READAHEAD, REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
73 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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74 | REQ_UTIME, REQ_FUTIME, |
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75 | REQ_CHMOD, REQ_FCHMOD, |
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76 | REQ_CHOWN, REQ_FCHOWN, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
77 | REQ_FSYNC, REQ_FDATASYNC, |
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78 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
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79 | REQ_MKNOD, REQ_READDIR, |
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80 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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81 | REQ_GROUP, REQ_NOP, |
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82 | REQ_BUSY, |
36 | }; |
83 | }; |
37 | |
84 | |
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85 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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86 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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87 | |
38 | typedef struct aio_cb { |
88 | typedef struct aio_cb |
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89 | { |
39 | struct aio_cb *volatile next; |
90 | struct aio_cb *volatile next; |
40 | |
91 | |
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92 | SV *callback; |
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93 | SV *sv1, *sv2; |
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94 | void *ptr1, *ptr2; |
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95 | off_t offs; |
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96 | size_t size; |
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97 | ssize_t result; |
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98 | double nv1, nv2; |
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99 | |
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100 | STRLEN stroffset; |
41 | int type; |
101 | int type; |
42 | |
102 | int int1, int2, int3; |
43 | int fd; |
103 | int errorno; |
44 | off_t offset; |
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45 | size_t length; |
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46 | ssize_t result; |
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47 | mode_t mode; /* open */ |
104 | mode_t mode; /* open */ |
48 | int errorno; |
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49 | SV *data, *callback, *fh; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
105 | |
53 | Stat_t *statdata; |
106 | unsigned char flags; |
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107 | unsigned char pri; |
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108 | |
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109 | SV *self; /* the perl counterpart of this request, if any */ |
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110 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
54 | } aio_cb; |
111 | } aio_cb; |
55 | |
112 | |
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113 | enum { |
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114 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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115 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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116 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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117 | }; |
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118 | |
56 | typedef aio_cb *aio_req; |
119 | typedef aio_cb *aio_req; |
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120 | typedef aio_cb *aio_req_ornot; |
57 | |
121 | |
58 | static int started; |
122 | enum { |
59 | static volatile int nreqs; |
123 | PRI_MIN = -4, |
60 | static int max_outstanding = 1<<30; |
124 | PRI_MAX = 4, |
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125 | |
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126 | DEFAULT_PRI = 0, |
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127 | PRI_BIAS = -PRI_MIN, |
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128 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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129 | }; |
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130 | |
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131 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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132 | |
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133 | static unsigned int max_poll_time = 0; |
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134 | static unsigned int max_poll_reqs = 0; |
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135 | |
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136 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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137 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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138 | { |
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139 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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140 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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141 | } |
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142 | |
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143 | static thread_t main_tid; |
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144 | static int main_sig; |
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145 | static int block_sig_level; |
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146 | |
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147 | void block_sig () |
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148 | { |
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149 | sigset_t ss; |
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150 | |
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151 | if (block_sig_level++) |
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152 | return; |
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153 | |
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154 | if (!main_sig) |
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155 | return; |
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156 | |
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157 | sigemptyset (&ss); |
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158 | sigaddset (&ss, main_sig); |
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159 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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160 | } |
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161 | |
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162 | void unblock_sig () |
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163 | { |
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164 | sigset_t ss; |
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165 | |
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166 | if (--block_sig_level) |
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167 | return; |
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168 | |
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169 | if (!main_sig) |
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170 | return; |
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171 | |
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172 | sigemptyset (&ss); |
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173 | sigaddset (&ss, main_sig); |
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174 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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175 | } |
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176 | |
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177 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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178 | |
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179 | static unsigned int started, idle, wanted; |
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180 | |
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181 | /* worker threads management */ |
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182 | static mutex_t wrklock = MUTEX_INIT; |
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183 | |
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184 | typedef struct worker { |
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185 | /* locked by wrklock */ |
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186 | struct worker *prev, *next; |
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187 | |
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188 | thread_t tid; |
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189 | |
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190 | /* locked by reslock, reqlock or wrklock */ |
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191 | aio_req req; /* currently processed request */ |
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192 | void *dbuf; |
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193 | DIR *dirp; |
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194 | } worker; |
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195 | |
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196 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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197 | |
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198 | static void worker_clear (worker *wrk) |
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199 | { |
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200 | if (wrk->dirp) |
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201 | { |
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202 | closedir (wrk->dirp); |
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203 | wrk->dirp = 0; |
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204 | } |
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205 | |
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206 | if (wrk->dbuf) |
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207 | { |
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208 | free (wrk->dbuf); |
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209 | wrk->dbuf = 0; |
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210 | } |
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211 | } |
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212 | |
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213 | static void worker_free (worker *wrk) |
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214 | { |
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215 | wrk->next->prev = wrk->prev; |
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216 | wrk->prev->next = wrk->next; |
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217 | |
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218 | free (wrk); |
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219 | } |
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220 | |
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221 | static volatile unsigned int nreqs, nready, npending; |
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222 | static volatile unsigned int max_idle = 4; |
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223 | static volatile unsigned int max_outstanding = 0xffffffff; |
61 | static int respipe [2]; |
224 | static int respipe [2]; |
62 | |
225 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
226 | static mutex_t reslock = MUTEX_INIT; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
227 | static mutex_t reqlock = MUTEX_INIT; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
228 | static cond_t reqwait = COND_INIT; |
66 | |
229 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
230 | #if WORDACCESS_UNSAFE |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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69 | |
231 | |
70 | static void |
232 | static unsigned int get_nready () |
71 | poll_wait () |
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72 | { |
233 | { |
73 | if (nreqs && !ress) |
234 | unsigned int retval; |
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235 | |
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236 | LOCK (reqlock); |
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237 | retval = nready; |
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238 | UNLOCK (reqlock); |
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239 | |
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240 | return retval; |
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241 | } |
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242 | |
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243 | static unsigned int get_npending () |
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244 | { |
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245 | unsigned int retval; |
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246 | |
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247 | LOCK (reslock); |
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248 | retval = npending; |
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249 | UNLOCK (reslock); |
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250 | |
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251 | return retval; |
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252 | } |
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253 | |
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254 | static unsigned int get_nthreads () |
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255 | { |
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256 | unsigned int retval; |
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257 | |
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258 | LOCK (wrklock); |
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259 | retval = started; |
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260 | UNLOCK (wrklock); |
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261 | |
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262 | return retval; |
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263 | } |
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264 | |
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265 | #else |
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266 | |
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267 | # define get_nready() nready |
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268 | # define get_npending() npending |
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269 | # define get_nthreads() started |
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270 | |
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271 | #endif |
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272 | |
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273 | /* |
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274 | * a somewhat faster data structure might be nice, but |
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275 | * with 8 priorities this actually needs <20 insns |
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276 | * per shift, the most expensive operation. |
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277 | */ |
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278 | typedef struct { |
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279 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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280 | int size; |
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281 | } reqq; |
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282 | |
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283 | static reqq req_queue; |
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284 | static reqq res_queue; |
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285 | |
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286 | int reqq_push (reqq *q, aio_req req) |
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287 | { |
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288 | int pri = req->pri; |
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289 | req->next = 0; |
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290 | |
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291 | if (q->qe[pri]) |
74 | { |
292 | { |
75 | fd_set rfd; |
293 | q->qe[pri]->next = req; |
76 | FD_ZERO(&rfd); |
294 | q->qe[pri] = req; |
77 | FD_SET(respipe [0], &rfd); |
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78 | |
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79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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80 | } |
295 | } |
81 | } |
296 | else |
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297 | q->qe[pri] = q->qs[pri] = req; |
82 | |
298 | |
83 | static int |
299 | return q->size++; |
84 | poll_cb () |
300 | } |
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301 | |
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302 | aio_req reqq_shift (reqq *q) |
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303 | { |
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304 | int pri; |
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305 | |
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306 | if (!q->size) |
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307 | return 0; |
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308 | |
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309 | --q->size; |
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310 | |
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311 | for (pri = NUM_PRI; pri--; ) |
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312 | { |
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313 | aio_req req = q->qs[pri]; |
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314 | |
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315 | if (req) |
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316 | { |
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317 | if (!(q->qs[pri] = req->next)) |
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318 | q->qe[pri] = 0; |
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319 | |
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320 | return req; |
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321 | } |
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322 | } |
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323 | |
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324 | abort (); |
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325 | } |
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326 | |
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327 | static int poll_cb (); |
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328 | static int req_invoke (aio_req req); |
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329 | static void req_destroy (aio_req req); |
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330 | static void req_cancel (aio_req req); |
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331 | |
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332 | /* must be called at most once */ |
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333 | static SV *req_sv (aio_req req, const char *klass) |
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334 | { |
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335 | if (!req->self) |
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336 | { |
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337 | req->self = (SV *)newHV (); |
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338 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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339 | } |
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340 | |
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341 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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342 | } |
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343 | |
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344 | static aio_req SvAIO_REQ (SV *sv) |
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345 | { |
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346 | MAGIC *mg; |
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347 | |
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348 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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349 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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350 | |
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351 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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352 | |
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353 | return mg ? (aio_req)mg->mg_ptr : 0; |
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354 | } |
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355 | |
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356 | static void aio_grp_feed (aio_req grp) |
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357 | { |
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358 | block_sig (); |
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359 | |
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360 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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361 | { |
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362 | int old_len = grp->size; |
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363 | |
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364 | if (grp->sv2 && SvOK (grp->sv2)) |
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365 | { |
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366 | dSP; |
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367 | |
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368 | ENTER; |
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369 | SAVETMPS; |
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370 | PUSHMARK (SP); |
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371 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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372 | PUTBACK; |
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373 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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374 | SPAGAIN; |
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375 | FREETMPS; |
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376 | LEAVE; |
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377 | } |
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378 | |
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379 | /* stop if no progress has been made */ |
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380 | if (old_len == grp->size) |
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381 | { |
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382 | SvREFCNT_dec (grp->sv2); |
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383 | grp->sv2 = 0; |
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384 | break; |
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385 | } |
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386 | } |
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387 | |
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388 | unblock_sig (); |
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389 | } |
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390 | |
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391 | static void aio_grp_dec (aio_req grp) |
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392 | { |
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393 | --grp->size; |
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394 | |
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395 | /* call feeder, if applicable */ |
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396 | aio_grp_feed (grp); |
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397 | |
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398 | /* finish, if done */ |
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399 | if (!grp->size && grp->int1) |
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400 | { |
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401 | block_sig (); |
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402 | |
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403 | if (!req_invoke (grp)) |
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404 | { |
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405 | req_destroy (grp); |
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406 | unblock_sig (); |
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407 | croak (0); |
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408 | } |
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409 | |
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410 | req_destroy (grp); |
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411 | unblock_sig (); |
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412 | } |
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413 | } |
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414 | |
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415 | static int req_invoke (aio_req req) |
85 | { |
416 | { |
86 | dSP; |
417 | dSP; |
87 | int count = 0; |
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88 | aio_req req, prv; |
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89 | |
418 | |
90 | pthread_mutex_lock (&reslock); |
419 | if (req->flags & FLAG_SV2_RO_OFF) |
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420 | SvREADONLY_off (req->sv2); |
91 | |
421 | |
92 | { |
422 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
93 | /* read any signals sent by the worker threads */ |
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94 | char buf [32]; |
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95 | while (read (respipe [0], buf, 32) > 0) |
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96 | ; |
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97 | } |
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98 | |
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99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
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103 | |
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104 | while (req) |
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105 | { |
423 | { |
106 | nreqs--; |
424 | ENTER; |
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425 | SAVETMPS; |
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426 | PUSHMARK (SP); |
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|
427 | EXTEND (SP, 1); |
107 | |
428 | |
108 | if (req->type == REQ_QUIT) |
429 | switch (req->type) |
109 | started--; |
|
|
110 | else |
|
|
111 | { |
430 | { |
112 | int errorno = errno; |
431 | case REQ_READDIR: |
113 | errno = req->errorno; |
|
|
114 | |
|
|
115 | if (req->type == REQ_READ) |
|
|
116 | SvCUR_set (req->data, req->dataoffset |
|
|
117 | + req->result > 0 ? req->result : 0); |
|
|
118 | |
|
|
119 | if (req->data) |
|
|
120 | SvREFCNT_dec (req->data); |
|
|
121 | |
|
|
122 | if (req->fh) |
|
|
123 | SvREFCNT_dec (req->fh); |
|
|
124 | |
|
|
125 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
126 | { |
432 | { |
127 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
433 | SV *rv = &PL_sv_undef; |
128 | PL_laststatval = req->result; |
|
|
129 | PL_statcache = *(req->statdata); |
|
|
130 | |
434 | |
131 | Safefree (req->statdata); |
435 | if (req->result >= 0) |
|
|
436 | { |
|
|
437 | int i; |
|
|
438 | char *buf = req->ptr2; |
|
|
439 | AV *av = newAV (); |
|
|
440 | |
|
|
441 | av_extend (av, req->result - 1); |
|
|
442 | |
|
|
443 | for (i = 0; i < req->result; ++i) |
|
|
444 | { |
|
|
445 | SV *sv = newSVpv (buf, 0); |
|
|
446 | |
|
|
447 | av_store (av, i, sv); |
|
|
448 | buf += SvCUR (sv) + 1; |
|
|
449 | } |
|
|
450 | |
|
|
451 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
452 | } |
|
|
453 | |
|
|
454 | PUSHs (rv); |
132 | } |
455 | } |
|
|
456 | break; |
133 | |
457 | |
134 | ENTER; |
458 | case REQ_OPEN: |
135 | PUSHMARK (SP); |
|
|
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
137 | |
|
|
138 | if (req->type == REQ_OPEN) |
|
|
139 | { |
459 | { |
140 | /* convert fd to fh */ |
460 | /* convert fd to fh */ |
141 | SV *fh; |
461 | SV *fh; |
142 | |
462 | |
|
|
463 | PUSHs (sv_2mortal (newSViv (req->result))); |
143 | PUTBACK; |
464 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
465 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
466 | SPAGAIN; |
146 | |
467 | |
147 | fh = SvREFCNT_inc (POPs); |
468 | fh = POPs; |
148 | |
|
|
149 | PUSHMARK (SP); |
469 | PUSHMARK (SP); |
150 | XPUSHs (sv_2mortal (fh)); |
470 | XPUSHs (fh); |
151 | } |
471 | } |
|
|
472 | break; |
152 | |
473 | |
153 | if (SvOK (req->callback)) |
474 | case REQ_GROUP: |
|
|
475 | req->int1 = 2; /* mark group as finished */ |
|
|
476 | |
|
|
477 | if (req->sv1) |
154 | { |
478 | { |
155 | PUTBACK; |
479 | int i; |
156 | call_sv (req->callback, G_VOID | G_EVAL); |
480 | AV *av = (AV *)req->sv1; |
157 | SPAGAIN; |
481 | |
|
|
482 | EXTEND (SP, AvFILL (av) + 1); |
|
|
483 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
484 | PUSHs (*av_fetch (av, i, 0)); |
158 | } |
485 | } |
|
|
486 | break; |
159 | |
487 | |
160 | LEAVE; |
488 | case REQ_NOP: |
|
|
489 | case REQ_BUSY: |
|
|
490 | break; |
|
|
491 | |
|
|
492 | case REQ_READLINK: |
|
|
493 | if (req->result > 0) |
161 | |
494 | { |
162 | if (req->callback) |
495 | SvCUR_set (req->sv2, req->result); |
163 | SvREFCNT_dec (req->callback); |
496 | *SvEND (req->sv2) = 0; |
|
|
497 | PUSHs (req->sv2); |
|
|
498 | } |
|
|
499 | break; |
164 | |
500 | |
165 | errno = errorno; |
501 | case REQ_STAT: |
166 | count++; |
502 | case REQ_LSTAT: |
|
|
503 | case REQ_FSTAT: |
|
|
504 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
505 | PL_laststatval = req->result; |
|
|
506 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
507 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
508 | break; |
|
|
509 | |
|
|
510 | case REQ_READ: |
|
|
511 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
512 | *SvEND (req->sv2) = 0; |
|
|
513 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
514 | break; |
|
|
515 | |
|
|
516 | default: |
|
|
517 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
518 | break; |
167 | } |
519 | } |
168 | |
520 | |
169 | prv = req; |
521 | errno = req->errorno; |
170 | req = req->next; |
|
|
171 | Safefree (prv); |
|
|
172 | |
522 | |
173 | /* TODO: croak on errors? */ |
523 | PUTBACK; |
|
|
524 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
525 | SPAGAIN; |
|
|
526 | |
|
|
527 | FREETMPS; |
|
|
528 | LEAVE; |
174 | } |
529 | } |
175 | |
530 | |
176 | return count; |
|
|
177 | } |
|
|
178 | |
|
|
179 | static void *aio_proc(void *arg); |
|
|
180 | |
|
|
181 | static void |
|
|
182 | start_thread (void) |
|
|
183 | { |
|
|
184 | sigset_t fullsigset, oldsigset; |
|
|
185 | pthread_t tid; |
|
|
186 | pthread_attr_t attr; |
|
|
187 | |
|
|
188 | pthread_attr_init (&attr); |
|
|
189 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
190 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
191 | |
|
|
192 | sigfillset (&fullsigset); |
|
|
193 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
194 | |
|
|
195 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
196 | started++; |
|
|
197 | |
|
|
198 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
199 | } |
|
|
200 | |
|
|
201 | static void |
|
|
202 | send_req (aio_req req) |
|
|
203 | { |
|
|
204 | nreqs++; |
|
|
205 | |
|
|
206 | pthread_mutex_lock (&reqlock); |
|
|
207 | |
|
|
208 | req->next = 0; |
|
|
209 | |
|
|
210 | if (reqe) |
531 | if (req->grp) |
211 | { |
532 | { |
212 | reqe->next = req; |
533 | aio_req grp = req->grp; |
213 | reqe = req; |
534 | |
|
|
535 | /* unlink request */ |
|
|
536 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
537 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
538 | |
|
|
539 | if (grp->grp_first == req) |
|
|
540 | grp->grp_first = req->grp_next; |
|
|
541 | |
|
|
542 | aio_grp_dec (grp); |
|
|
543 | } |
|
|
544 | |
|
|
545 | return !SvTRUE (ERRSV); |
|
|
546 | } |
|
|
547 | |
|
|
548 | static void req_destroy (aio_req req) |
|
|
549 | { |
|
|
550 | if (req->self) |
|
|
551 | { |
|
|
552 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
553 | SvREFCNT_dec (req->self); |
|
|
554 | } |
|
|
555 | |
|
|
556 | SvREFCNT_dec (req->sv1); |
|
|
557 | SvREFCNT_dec (req->sv2); |
|
|
558 | SvREFCNT_dec (req->callback); |
|
|
559 | |
|
|
560 | if (req->flags & FLAG_PTR2_FREE) |
|
|
561 | free (req->ptr2); |
|
|
562 | |
|
|
563 | Safefree (req); |
|
|
564 | } |
|
|
565 | |
|
|
566 | static void req_cancel_subs (aio_req grp) |
|
|
567 | { |
|
|
568 | aio_req sub; |
|
|
569 | |
|
|
570 | if (grp->type != REQ_GROUP) |
|
|
571 | return; |
|
|
572 | |
|
|
573 | SvREFCNT_dec (grp->sv2); |
|
|
574 | grp->sv2 = 0; |
|
|
575 | |
|
|
576 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
577 | req_cancel (sub); |
|
|
578 | } |
|
|
579 | |
|
|
580 | static void req_cancel (aio_req req) |
|
|
581 | { |
|
|
582 | req->flags |= FLAG_CANCELLED; |
|
|
583 | |
|
|
584 | req_cancel_subs (req); |
|
|
585 | } |
|
|
586 | |
|
|
587 | static void *aio_proc (void *arg); |
|
|
588 | |
|
|
589 | static void start_thread (void) |
|
|
590 | { |
|
|
591 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
592 | |
|
|
593 | if (!wrk) |
|
|
594 | croak ("unable to allocate worker thread data"); |
|
|
595 | |
|
|
596 | LOCK (wrklock); |
|
|
597 | |
|
|
598 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
|
|
599 | { |
|
|
600 | wrk->prev = &wrk_first; |
|
|
601 | wrk->next = wrk_first.next; |
|
|
602 | wrk_first.next->prev = wrk; |
|
|
603 | wrk_first.next = wrk; |
|
|
604 | ++started; |
214 | } |
605 | } |
215 | else |
606 | else |
216 | reqe = reqs = req; |
607 | free (wrk); |
217 | |
608 | |
218 | pthread_cond_signal (&reqwait); |
609 | UNLOCK (wrklock); |
219 | pthread_mutex_unlock (&reqlock); |
610 | } |
220 | |
611 | |
221 | while (nreqs > max_outstanding) |
612 | static void maybe_start_thread () |
|
|
613 | { |
|
|
614 | if (get_nthreads () >= wanted) |
|
|
615 | return; |
|
|
616 | |
|
|
617 | /* todo: maybe use idle here, but might be less exact */ |
|
|
618 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
619 | return; |
|
|
620 | |
|
|
621 | start_thread (); |
|
|
622 | } |
|
|
623 | |
|
|
624 | static void req_send (aio_req req) |
|
|
625 | { |
|
|
626 | block_sig (); |
|
|
627 | |
|
|
628 | ++nreqs; |
|
|
629 | |
|
|
630 | LOCK (reqlock); |
|
|
631 | ++nready; |
|
|
632 | reqq_push (&req_queue, req); |
|
|
633 | COND_SIGNAL (reqwait); |
|
|
634 | UNLOCK (reqlock); |
|
|
635 | |
|
|
636 | unblock_sig (); |
|
|
637 | |
|
|
638 | maybe_start_thread (); |
|
|
639 | } |
|
|
640 | |
|
|
641 | static void end_thread (void) |
|
|
642 | { |
|
|
643 | aio_req req; |
|
|
644 | |
|
|
645 | Newz (0, req, 1, aio_cb); |
|
|
646 | |
|
|
647 | req->type = REQ_QUIT; |
|
|
648 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
649 | |
|
|
650 | LOCK (reqlock); |
|
|
651 | reqq_push (&req_queue, req); |
|
|
652 | COND_SIGNAL (reqwait); |
|
|
653 | UNLOCK (reqlock); |
|
|
654 | |
|
|
655 | LOCK (wrklock); |
|
|
656 | --started; |
|
|
657 | UNLOCK (wrklock); |
|
|
658 | } |
|
|
659 | |
|
|
660 | static void set_max_idle (int nthreads) |
|
|
661 | { |
|
|
662 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
663 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
664 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
665 | } |
|
|
666 | |
|
|
667 | static void min_parallel (int nthreads) |
|
|
668 | { |
|
|
669 | if (wanted < nthreads) |
|
|
670 | wanted = nthreads; |
|
|
671 | } |
|
|
672 | |
|
|
673 | static void max_parallel (int nthreads) |
|
|
674 | { |
|
|
675 | if (wanted > nthreads) |
|
|
676 | wanted = nthreads; |
|
|
677 | |
|
|
678 | while (started > wanted) |
|
|
679 | end_thread (); |
|
|
680 | } |
|
|
681 | |
|
|
682 | static void poll_wait () |
|
|
683 | { |
|
|
684 | fd_set rfd; |
|
|
685 | |
|
|
686 | while (nreqs) |
222 | { |
687 | { |
|
|
688 | int size; |
|
|
689 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
690 | size = res_queue.size; |
|
|
691 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
692 | |
|
|
693 | if (size) |
|
|
694 | return; |
|
|
695 | |
|
|
696 | maybe_start_thread (); |
|
|
697 | |
|
|
698 | FD_ZERO(&rfd); |
|
|
699 | FD_SET(respipe [0], &rfd); |
|
|
700 | |
|
|
701 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
702 | } |
|
|
703 | } |
|
|
704 | |
|
|
705 | static int poll_cb () |
|
|
706 | { |
|
|
707 | dSP; |
|
|
708 | int count = 0; |
|
|
709 | int maxreqs = max_poll_reqs; |
|
|
710 | int do_croak = 0; |
|
|
711 | struct timeval tv_start, tv_now; |
|
|
712 | aio_req req; |
|
|
713 | |
|
|
714 | if (max_poll_time) |
|
|
715 | gettimeofday (&tv_start, 0); |
|
|
716 | |
|
|
717 | block_sig (); |
|
|
718 | |
|
|
719 | for (;;) |
|
|
720 | { |
|
|
721 | for (;;) |
|
|
722 | { |
|
|
723 | maybe_start_thread (); |
|
|
724 | |
|
|
725 | LOCK (reslock); |
|
|
726 | req = reqq_shift (&res_queue); |
|
|
727 | |
|
|
728 | if (req) |
|
|
729 | { |
|
|
730 | --npending; |
|
|
731 | |
|
|
732 | if (!res_queue.size) |
|
|
733 | { |
|
|
734 | /* read any signals sent by the worker threads */ |
|
|
735 | char buf [4]; |
|
|
736 | while (read (respipe [0], buf, 4) == 4) |
|
|
737 | ; |
|
|
738 | } |
|
|
739 | } |
|
|
740 | |
|
|
741 | UNLOCK (reslock); |
|
|
742 | |
|
|
743 | if (!req) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | --nreqs; |
|
|
747 | |
|
|
748 | if (req->type == REQ_GROUP && req->size) |
|
|
749 | { |
|
|
750 | req->int1 = 1; /* mark request as delayed */ |
|
|
751 | continue; |
|
|
752 | } |
|
|
753 | else |
|
|
754 | { |
|
|
755 | if (!req_invoke (req)) |
|
|
756 | { |
|
|
757 | req_destroy (req); |
|
|
758 | unblock_sig (); |
|
|
759 | croak (0); |
|
|
760 | } |
|
|
761 | |
|
|
762 | count++; |
|
|
763 | } |
|
|
764 | |
|
|
765 | req_destroy (req); |
|
|
766 | |
|
|
767 | if (maxreqs && !--maxreqs) |
|
|
768 | break; |
|
|
769 | |
|
|
770 | if (max_poll_time) |
|
|
771 | { |
|
|
772 | gettimeofday (&tv_now, 0); |
|
|
773 | |
|
|
774 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
775 | break; |
|
|
776 | } |
|
|
777 | } |
|
|
778 | |
|
|
779 | if (nreqs <= max_outstanding) |
|
|
780 | break; |
|
|
781 | |
223 | poll_wait (); |
782 | poll_wait (); |
224 | poll_cb (); |
783 | |
|
|
784 | ++maxreqs; |
225 | } |
785 | } |
226 | } |
|
|
227 | |
786 | |
228 | static void |
787 | unblock_sig (); |
229 | end_thread (void) |
788 | return count; |
230 | { |
|
|
231 | aio_req req; |
|
|
232 | New (0, req, 1, aio_cb); |
|
|
233 | req->type = REQ_QUIT; |
|
|
234 | |
|
|
235 | send_req (req); |
|
|
236 | } |
789 | } |
237 | |
790 | |
|
|
791 | static void create_pipe () |
|
|
792 | { |
|
|
793 | if (pipe (respipe)) |
|
|
794 | croak ("unable to initialize result pipe"); |
|
|
795 | |
|
|
796 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
797 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
798 | |
|
|
799 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
800 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
801 | } |
|
|
802 | |
|
|
803 | /*****************************************************************************/ |
238 | /* work around various missing functions */ |
804 | /* work around various missing functions */ |
239 | |
805 | |
240 | #if !HAVE_PREADWRITE |
806 | #if !HAVE_PREADWRITE |
241 | # define pread aio_pread |
807 | # define pread aio_pread |
242 | # define pwrite aio_pwrite |
808 | # define pwrite aio_pwrite |
… | |
… | |
244 | /* |
810 | /* |
245 | * make our pread/pwrite safe against themselves, but not against |
811 | * make our pread/pwrite safe against themselves, but not against |
246 | * normal read/write by using a mutex. slows down execution a lot, |
812 | * normal read/write by using a mutex. slows down execution a lot, |
247 | * but that's your problem, not mine. |
813 | * but that's your problem, not mine. |
248 | */ |
814 | */ |
249 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
815 | static mutex_t preadwritelock = MUTEX_INIT; |
250 | |
816 | |
251 | static ssize_t |
817 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
252 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
253 | { |
818 | { |
254 | ssize_t res; |
819 | ssize_t res; |
255 | off_t ooffset; |
820 | off_t ooffset; |
256 | |
821 | |
257 | pthread_mutex_lock (&iolock); |
822 | LOCK (preadwritelock); |
258 | ooffset = lseek (fd, 0, SEEK_CUR); |
823 | ooffset = lseek (fd, 0, SEEK_CUR); |
259 | lseek (fd, offset, SEEK_SET); |
824 | lseek (fd, offset, SEEK_SET); |
260 | res = read (fd, buf, count); |
825 | res = read (fd, buf, count); |
261 | lseek (fd, ooffset, SEEK_SET); |
826 | lseek (fd, ooffset, SEEK_SET); |
262 | pthread_mutex_unlock (&iolock); |
827 | UNLOCK (preadwritelock); |
263 | |
828 | |
264 | return res; |
829 | return res; |
265 | } |
830 | } |
266 | |
831 | |
267 | static ssize_t |
|
|
268 | pwrite (int fd, void *buf, size_t count, off_t offset) |
832 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
269 | { |
833 | { |
270 | ssize_t res; |
834 | ssize_t res; |
271 | off_t ooffset; |
835 | off_t ooffset; |
272 | |
836 | |
273 | pthread_mutex_lock (&iolock); |
837 | LOCK (preadwritelock); |
274 | ooffset = lseek (fd, 0, SEEK_CUR); |
838 | ooffset = lseek (fd, 0, SEEK_CUR); |
275 | lseek (fd, offset, SEEK_SET); |
839 | lseek (fd, offset, SEEK_SET); |
276 | res = write (fd, buf, count); |
840 | res = write (fd, buf, count); |
277 | lseek (fd, offset, SEEK_SET); |
841 | lseek (fd, offset, SEEK_SET); |
278 | pthread_mutex_unlock (&iolock); |
842 | UNLOCK (preadwritelock); |
279 | |
843 | |
280 | return res; |
844 | return res; |
281 | } |
845 | } |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | #ifndef HAVE_FUTIMES |
|
|
849 | |
|
|
850 | # define utimes(path,times) aio_utimes (path, times) |
|
|
851 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
852 | |
|
|
853 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
854 | { |
|
|
855 | if (times) |
|
|
856 | { |
|
|
857 | struct utimbuf buf; |
|
|
858 | |
|
|
859 | buf.actime = times[0].tv_sec; |
|
|
860 | buf.modtime = times[1].tv_sec; |
|
|
861 | |
|
|
862 | return utime (filename, &buf); |
|
|
863 | } |
|
|
864 | else |
|
|
865 | return utime (filename, 0); |
|
|
866 | } |
|
|
867 | |
|
|
868 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
869 | { |
|
|
870 | errno = ENOSYS; |
|
|
871 | return -1; |
|
|
872 | } |
|
|
873 | |
282 | #endif |
874 | #endif |
283 | |
875 | |
284 | #if !HAVE_FDATASYNC |
876 | #if !HAVE_FDATASYNC |
285 | # define fdatasync fsync |
877 | # define fdatasync fsync |
286 | #endif |
878 | #endif |
287 | |
879 | |
288 | #if !HAVE_READAHEAD |
880 | #if !HAVE_READAHEAD |
289 | # define readahead aio_readahead |
881 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
290 | |
882 | |
291 | static char readahead_buf[4096]; |
883 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
292 | |
|
|
293 | static ssize_t |
|
|
294 | readahead (int fd, off_t offset, size_t count) |
|
|
295 | { |
884 | { |
|
|
885 | dBUF; |
|
|
886 | |
296 | while (count > 0) |
887 | while (count > 0) |
297 | { |
888 | { |
298 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
889 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
299 | |
890 | |
300 | pread (fd, readahead_buf, len, offset); |
891 | pread (fd, aio_buf, len, offset); |
301 | offset += len; |
892 | offset += len; |
302 | count -= len; |
893 | count -= len; |
303 | } |
894 | } |
304 | |
895 | |
305 | errno = 0; |
896 | errno = 0; |
306 | } |
897 | } |
|
|
898 | |
307 | #endif |
899 | #endif |
308 | |
900 | |
309 | static void * |
901 | #if !HAVE_READDIR_R |
|
|
902 | # define readdir_r aio_readdir_r |
|
|
903 | |
|
|
904 | static mutex_t readdirlock = MUTEX_INIT; |
|
|
905 | |
|
|
906 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
907 | { |
|
|
908 | struct dirent *e; |
|
|
909 | int errorno; |
|
|
910 | |
|
|
911 | LOCK (readdirlock); |
|
|
912 | |
|
|
913 | e = readdir (dirp); |
|
|
914 | errorno = errno; |
|
|
915 | |
|
|
916 | if (e) |
|
|
917 | { |
|
|
918 | *res = ent; |
|
|
919 | strcpy (ent->d_name, e->d_name); |
|
|
920 | } |
|
|
921 | else |
|
|
922 | *res = 0; |
|
|
923 | |
|
|
924 | UNLOCK (readdirlock); |
|
|
925 | |
|
|
926 | errno = errorno; |
|
|
927 | return e ? 0 : -1; |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | |
|
|
931 | /* sendfile always needs emulation */ |
|
|
932 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
933 | { |
|
|
934 | ssize_t res; |
|
|
935 | |
|
|
936 | if (!count) |
|
|
937 | return 0; |
|
|
938 | |
|
|
939 | #if HAVE_SENDFILE |
|
|
940 | # if __linux |
|
|
941 | res = sendfile (ofd, ifd, &offset, count); |
|
|
942 | |
|
|
943 | # elif __freebsd |
|
|
944 | /* |
|
|
945 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
946 | * wasted on making it similar to other I/O functions. |
|
|
947 | */ |
|
|
948 | { |
|
|
949 | off_t sbytes; |
|
|
950 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
951 | |
|
|
952 | if (res < 0 && sbytes) |
|
|
953 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
954 | res = sbytes; |
|
|
955 | } |
|
|
956 | |
|
|
957 | # elif __hpux |
|
|
958 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
959 | |
|
|
960 | # elif __solaris |
|
|
961 | { |
|
|
962 | struct sendfilevec vec; |
|
|
963 | size_t sbytes; |
|
|
964 | |
|
|
965 | vec.sfv_fd = ifd; |
|
|
966 | vec.sfv_flag = 0; |
|
|
967 | vec.sfv_off = offset; |
|
|
968 | vec.sfv_len = count; |
|
|
969 | |
|
|
970 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
971 | |
|
|
972 | if (res < 0 && sbytes) |
|
|
973 | res = sbytes; |
|
|
974 | } |
|
|
975 | |
|
|
976 | # endif |
|
|
977 | #else |
|
|
978 | res = -1; |
|
|
979 | errno = ENOSYS; |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | if (res < 0 |
|
|
983 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
984 | #if __solaris |
|
|
985 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
986 | #endif |
|
|
987 | ) |
|
|
988 | ) |
|
|
989 | { |
|
|
990 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
991 | dBUF; |
|
|
992 | |
|
|
993 | res = 0; |
|
|
994 | |
|
|
995 | while (count) |
|
|
996 | { |
|
|
997 | ssize_t cnt; |
|
|
998 | |
|
|
999 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
1000 | |
|
|
1001 | if (cnt <= 0) |
|
|
1002 | { |
|
|
1003 | if (cnt && !res) res = -1; |
|
|
1004 | break; |
|
|
1005 | } |
|
|
1006 | |
|
|
1007 | cnt = write (ofd, aio_buf, cnt); |
|
|
1008 | |
|
|
1009 | if (cnt <= 0) |
|
|
1010 | { |
|
|
1011 | if (cnt && !res) res = -1; |
|
|
1012 | break; |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | offset += cnt; |
|
|
1016 | res += cnt; |
|
|
1017 | count -= cnt; |
|
|
1018 | } |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | return res; |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | /* read a full directory */ |
|
|
1025 | static void scandir_ (aio_req req, worker *self) |
|
|
1026 | { |
|
|
1027 | DIR *dirp; |
|
|
1028 | union |
|
|
1029 | { |
|
|
1030 | struct dirent d; |
|
|
1031 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
1032 | } *u; |
|
|
1033 | struct dirent *entp; |
|
|
1034 | char *name, *names; |
|
|
1035 | int memlen = 4096; |
|
|
1036 | int memofs = 0; |
|
|
1037 | int res = 0; |
|
|
1038 | int errorno; |
|
|
1039 | |
|
|
1040 | LOCK (wrklock); |
|
|
1041 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1042 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1043 | req->flags |= FLAG_PTR2_FREE; |
|
|
1044 | req->ptr2 = names = malloc (memlen); |
|
|
1045 | UNLOCK (wrklock); |
|
|
1046 | |
|
|
1047 | if (dirp && u && names) |
|
|
1048 | for (;;) |
|
|
1049 | { |
|
|
1050 | errno = 0; |
|
|
1051 | readdir_r (dirp, &u->d, &entp); |
|
|
1052 | |
|
|
1053 | if (!entp) |
|
|
1054 | break; |
|
|
1055 | |
|
|
1056 | name = entp->d_name; |
|
|
1057 | |
|
|
1058 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1059 | { |
|
|
1060 | int len = strlen (name) + 1; |
|
|
1061 | |
|
|
1062 | res++; |
|
|
1063 | |
|
|
1064 | while (memofs + len > memlen) |
|
|
1065 | { |
|
|
1066 | memlen *= 2; |
|
|
1067 | LOCK (wrklock); |
|
|
1068 | req->ptr2 = names = realloc (names, memlen); |
|
|
1069 | UNLOCK (wrklock); |
|
|
1070 | |
|
|
1071 | if (!names) |
|
|
1072 | break; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | memcpy (names + memofs, name, len); |
|
|
1076 | memofs += len; |
|
|
1077 | } |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | if (errno) |
|
|
1081 | res = -1; |
|
|
1082 | |
|
|
1083 | req->result = res; |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | /*****************************************************************************/ |
|
|
1087 | |
310 | aio_proc (void *thr_arg) |
1088 | static void *aio_proc (void *thr_arg) |
311 | { |
1089 | { |
312 | aio_req req; |
1090 | aio_req req; |
313 | int type; |
1091 | struct timespec ts; |
|
|
1092 | worker *self = (worker *)thr_arg; |
314 | |
1093 | |
315 | do |
1094 | /* try to distribute timeouts somewhat evenly */ |
|
|
1095 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1096 | * (1000000000UL / 1024UL); |
|
|
1097 | |
|
|
1098 | for (;;) |
316 | { |
1099 | { |
317 | pthread_mutex_lock (&reqlock); |
1100 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1101 | |
|
|
1102 | LOCK (reqlock); |
318 | |
1103 | |
319 | for (;;) |
1104 | for (;;) |
320 | { |
1105 | { |
321 | req = reqs; |
1106 | self->req = req = reqq_shift (&req_queue); |
322 | |
|
|
323 | if (reqs) |
|
|
324 | { |
|
|
325 | reqs = reqs->next; |
|
|
326 | if (!reqs) reqe = 0; |
|
|
327 | } |
|
|
328 | |
1107 | |
329 | if (req) |
1108 | if (req) |
330 | break; |
1109 | break; |
331 | |
1110 | |
332 | pthread_cond_wait (&reqwait, &reqlock); |
1111 | ++idle; |
|
|
1112 | |
|
|
1113 | if (COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1114 | == ETIMEDOUT) |
|
|
1115 | { |
|
|
1116 | if (idle > max_idle) |
|
|
1117 | { |
|
|
1118 | --idle; |
|
|
1119 | UNLOCK (reqlock); |
|
|
1120 | LOCK (wrklock); |
|
|
1121 | --started; |
|
|
1122 | UNLOCK (wrklock); |
|
|
1123 | goto quit; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1127 | COND_WAIT (reqwait, reqlock); |
|
|
1128 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | --idle; |
333 | } |
1132 | } |
334 | |
1133 | |
335 | pthread_mutex_unlock (&reqlock); |
1134 | --nready; |
|
|
1135 | |
|
|
1136 | UNLOCK (reqlock); |
336 | |
1137 | |
337 | errno = 0; /* strictly unnecessary */ |
1138 | errno = 0; /* strictly unnecessary */ |
338 | |
1139 | |
339 | type = req->type; |
1140 | if (!(req->flags & FLAG_CANCELLED)) |
340 | |
|
|
341 | switch (type) |
1141 | switch (req->type) |
|
|
1142 | { |
|
|
1143 | case REQ_READ: req->result = req->offs >= 0 |
|
|
1144 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1145 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1146 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1147 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1148 | : write (req->int1, req->ptr1, req->size); break; |
|
|
1149 | |
|
|
1150 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1151 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1152 | |
|
|
1153 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1154 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1155 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1156 | |
|
|
1157 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1158 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1159 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1160 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1161 | |
|
|
1162 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1163 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1164 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1165 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1166 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1167 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1168 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1169 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1170 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1171 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1172 | |
|
|
1173 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1174 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1175 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1176 | |
|
|
1177 | case REQ_BUSY: |
|
|
1178 | { |
|
|
1179 | struct timeval tv; |
|
|
1180 | |
|
|
1181 | tv.tv_sec = req->nv1; |
|
|
1182 | tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.; |
|
|
1183 | |
|
|
1184 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | case REQ_UTIME: |
|
|
1188 | case REQ_FUTIME: |
|
|
1189 | { |
|
|
1190 | struct timeval tv[2]; |
|
|
1191 | struct timeval *times; |
|
|
1192 | |
|
|
1193 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1194 | { |
|
|
1195 | tv[0].tv_sec = req->nv1; |
|
|
1196 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1197 | tv[1].tv_sec = req->nv2; |
|
|
1198 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1199 | |
|
|
1200 | times = tv; |
|
|
1201 | } |
|
|
1202 | else |
|
|
1203 | times = 0; |
|
|
1204 | |
|
|
1205 | |
|
|
1206 | req->result = req->type == REQ_FUTIME |
|
|
1207 | ? futimes (req->int1, times) |
|
|
1208 | : utimes (req->ptr1, times); |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | case REQ_GROUP: |
|
|
1212 | case REQ_NOP: |
|
|
1213 | break; |
|
|
1214 | |
|
|
1215 | case REQ_QUIT: |
|
|
1216 | goto quit; |
|
|
1217 | |
|
|
1218 | default: |
|
|
1219 | req->result = -1; |
|
|
1220 | break; |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | req->errorno = errno; |
|
|
1224 | |
|
|
1225 | LOCK (reslock); |
|
|
1226 | |
|
|
1227 | ++npending; |
|
|
1228 | |
|
|
1229 | if (!reqq_push (&res_queue, req)) |
342 | { |
1230 | { |
343 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
344 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
345 | |
|
|
346 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
347 | |
|
|
348 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
|
|
349 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
350 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
351 | |
|
|
352 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
353 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
354 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
355 | |
|
|
356 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
357 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
358 | |
|
|
359 | case REQ_QUIT: |
|
|
360 | break; |
|
|
361 | |
|
|
362 | default: |
|
|
363 | req->result = ENOSYS; |
|
|
364 | break; |
|
|
365 | } |
|
|
366 | |
|
|
367 | req->errorno = errno; |
|
|
368 | |
|
|
369 | pthread_mutex_lock (&reslock); |
|
|
370 | |
|
|
371 | req->next = 0; |
|
|
372 | |
|
|
373 | if (rese) |
|
|
374 | { |
|
|
375 | rese->next = req; |
|
|
376 | rese = req; |
|
|
377 | } |
|
|
378 | else |
|
|
379 | { |
|
|
380 | rese = ress = req; |
|
|
381 | |
|
|
382 | /* write a dummy byte to the pipe so fh becomes ready */ |
1231 | /* write a dummy byte to the pipe so fh becomes ready */ |
383 | write (respipe [1], &respipe, 1); |
1232 | write (respipe [1], &respipe, 1); |
|
|
1233 | |
|
|
1234 | /* optionally signal the main thread asynchronously */ |
|
|
1235 | if (main_sig) |
|
|
1236 | pthread_kill (main_tid, main_sig); |
384 | } |
1237 | } |
385 | |
1238 | |
386 | pthread_mutex_unlock (&reslock); |
1239 | self->req = 0; |
|
|
1240 | worker_clear (self); |
|
|
1241 | |
|
|
1242 | UNLOCK (reslock); |
387 | } |
1243 | } |
388 | while (type != REQ_QUIT); |
1244 | |
|
|
1245 | quit: |
|
|
1246 | LOCK (wrklock); |
|
|
1247 | worker_free (self); |
|
|
1248 | UNLOCK (wrklock); |
389 | |
1249 | |
390 | return 0; |
1250 | return 0; |
391 | } |
1251 | } |
392 | |
1252 | |
|
|
1253 | /*****************************************************************************/ |
|
|
1254 | |
|
|
1255 | static void atfork_prepare (void) |
|
|
1256 | { |
|
|
1257 | LOCK (wrklock); |
|
|
1258 | LOCK (reqlock); |
|
|
1259 | LOCK (reslock); |
|
|
1260 | #if !HAVE_PREADWRITE |
|
|
1261 | LOCK (preadwritelock); |
|
|
1262 | #endif |
|
|
1263 | #if !HAVE_READDIR_R |
|
|
1264 | LOCK (readdirlock); |
|
|
1265 | #endif |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | static void atfork_parent (void) |
|
|
1269 | { |
|
|
1270 | #if !HAVE_READDIR_R |
|
|
1271 | UNLOCK (readdirlock); |
|
|
1272 | #endif |
|
|
1273 | #if !HAVE_PREADWRITE |
|
|
1274 | UNLOCK (preadwritelock); |
|
|
1275 | #endif |
|
|
1276 | UNLOCK (reslock); |
|
|
1277 | UNLOCK (reqlock); |
|
|
1278 | UNLOCK (wrklock); |
|
|
1279 | } |
|
|
1280 | |
|
|
1281 | static void atfork_child (void) |
|
|
1282 | { |
|
|
1283 | aio_req prv; |
|
|
1284 | |
|
|
1285 | while (prv = reqq_shift (&req_queue)) |
|
|
1286 | req_destroy (prv); |
|
|
1287 | |
|
|
1288 | while (prv = reqq_shift (&res_queue)) |
|
|
1289 | req_destroy (prv); |
|
|
1290 | |
|
|
1291 | while (wrk_first.next != &wrk_first) |
|
|
1292 | { |
|
|
1293 | worker *wrk = wrk_first.next; |
|
|
1294 | |
|
|
1295 | if (wrk->req) |
|
|
1296 | req_destroy (wrk->req); |
|
|
1297 | |
|
|
1298 | worker_clear (wrk); |
|
|
1299 | worker_free (wrk); |
|
|
1300 | } |
|
|
1301 | |
|
|
1302 | started = 0; |
|
|
1303 | idle = 0; |
|
|
1304 | nreqs = 0; |
|
|
1305 | nready = 0; |
|
|
1306 | npending = 0; |
|
|
1307 | |
|
|
1308 | close (respipe [0]); |
|
|
1309 | close (respipe [1]); |
|
|
1310 | create_pipe (); |
|
|
1311 | |
|
|
1312 | atfork_parent (); |
|
|
1313 | } |
|
|
1314 | |
|
|
1315 | #define dREQ \ |
|
|
1316 | aio_req req; \ |
|
|
1317 | int req_pri = next_pri; \ |
|
|
1318 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1319 | \ |
|
|
1320 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1321 | croak ("callback must be undef or of reference type"); \ |
|
|
1322 | \ |
|
|
1323 | Newz (0, req, 1, aio_cb); \ |
|
|
1324 | if (!req) \ |
|
|
1325 | croak ("out of memory during aio_req allocation"); \ |
|
|
1326 | \ |
|
|
1327 | req->callback = newSVsv (callback); \ |
|
|
1328 | req->pri = req_pri |
|
|
1329 | |
|
|
1330 | #define REQ_SEND \ |
|
|
1331 | req_send (req); \ |
|
|
1332 | \ |
|
|
1333 | if (GIMME_V != G_VOID) \ |
|
|
1334 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1335 | |
393 | MODULE = IO::AIO PACKAGE = IO::AIO |
1336 | MODULE = IO::AIO PACKAGE = IO::AIO |
394 | |
1337 | |
395 | PROTOTYPES: ENABLE |
1338 | PROTOTYPES: ENABLE |
396 | |
1339 | |
397 | BOOT: |
1340 | BOOT: |
398 | { |
1341 | { |
399 | if (pipe (respipe)) |
1342 | HV *stash = gv_stashpv ("IO::AIO", 1); |
400 | croak ("unable to initialize result pipe"); |
|
|
401 | |
1343 | |
402 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1344 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
403 | croak ("cannot set result pipe to nonblocking mode"); |
1345 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1346 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1347 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1348 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1349 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1350 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
404 | |
1351 | |
405 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
1352 | create_pipe (); |
406 | croak ("cannot set result pipe to nonblocking mode"); |
1353 | ATFORK (atfork_prepare, atfork_parent, atfork_child); |
407 | } |
1354 | } |
408 | |
1355 | |
409 | void |
1356 | void |
410 | min_parallel(nthreads) |
1357 | max_poll_reqs (int nreqs) |
411 | int nthreads |
|
|
412 | PROTOTYPE: $ |
1358 | PROTOTYPE: $ |
413 | CODE: |
1359 | CODE: |
414 | while (nthreads > started) |
1360 | max_poll_reqs = nreqs; |
415 | start_thread (); |
|
|
416 | |
1361 | |
417 | void |
1362 | void |
418 | max_parallel(nthreads) |
1363 | max_poll_time (double nseconds) |
419 | int nthreads |
|
|
420 | PROTOTYPE: $ |
1364 | PROTOTYPE: $ |
421 | CODE: |
1365 | CODE: |
422 | { |
1366 | max_poll_time = nseconds * AIO_TICKS; |
423 | int cur = started; |
|
|
424 | while (cur > nthreads) |
|
|
425 | { |
|
|
426 | end_thread (); |
|
|
427 | cur--; |
|
|
428 | } |
|
|
429 | |
1367 | |
430 | while (started > nthreads) |
1368 | void |
431 | { |
1369 | min_parallel (int nthreads) |
432 | poll_wait (); |
1370 | PROTOTYPE: $ |
433 | poll_cb (); |
1371 | |
434 | } |
1372 | void |
435 | } |
1373 | max_parallel (int nthreads) |
|
|
1374 | PROTOTYPE: $ |
|
|
1375 | |
|
|
1376 | void |
|
|
1377 | max_idle (int nthreads) |
|
|
1378 | PROTOTYPE: $ |
|
|
1379 | CODE: |
|
|
1380 | set_max_idle (nthreads); |
436 | |
1381 | |
437 | int |
1382 | int |
438 | max_outstanding(nreqs) |
1383 | max_outstanding (int maxreqs) |
439 | int nreqs |
1384 | PROTOTYPE: $ |
440 | PROTOTYPE: $ |
|
|
441 | CODE: |
1385 | CODE: |
442 | RETVAL = max_outstanding; |
1386 | RETVAL = max_outstanding; |
443 | max_outstanding = nreqs; |
1387 | max_outstanding = maxreqs; |
|
|
1388 | OUTPUT: |
|
|
1389 | RETVAL |
444 | |
1390 | |
445 | void |
1391 | void |
446 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1392 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
447 | SV * pathname |
|
|
448 | int flags |
|
|
449 | int mode |
|
|
450 | SV * callback |
|
|
451 | PROTOTYPE: $$$;$ |
1393 | PROTOTYPE: $$$;$ |
452 | CODE: |
1394 | PPCODE: |
453 | { |
1395 | { |
454 | aio_req req; |
1396 | dREQ; |
455 | |
|
|
456 | Newz (0, req, 1, aio_cb); |
|
|
457 | |
|
|
458 | if (!req) |
|
|
459 | croak ("out of memory during aio_req allocation"); |
|
|
460 | |
1397 | |
461 | req->type = REQ_OPEN; |
1398 | req->type = REQ_OPEN; |
462 | req->data = newSVsv (pathname); |
1399 | req->sv1 = newSVsv (pathname); |
463 | req->dataptr = SvPV_nolen (req->data); |
1400 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
464 | req->fd = flags; |
1401 | req->int1 = flags; |
465 | req->mode = mode; |
1402 | req->mode = mode; |
466 | req->callback = SvREFCNT_inc (callback); |
|
|
467 | |
1403 | |
468 | send_req (req); |
1404 | REQ_SEND; |
469 | } |
1405 | } |
470 | |
1406 | |
471 | void |
1407 | void |
472 | aio_close(fh,callback=&PL_sv_undef) |
1408 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
473 | SV * fh |
|
|
474 | SV * callback |
|
|
475 | PROTOTYPE: $;$ |
1409 | PROTOTYPE: $;$ |
476 | ALIAS: |
1410 | ALIAS: |
477 | aio_close = REQ_CLOSE |
1411 | aio_close = REQ_CLOSE |
478 | aio_fsync = REQ_FSYNC |
1412 | aio_fsync = REQ_FSYNC |
479 | aio_fdatasync = REQ_FDATASYNC |
1413 | aio_fdatasync = REQ_FDATASYNC |
480 | CODE: |
1414 | PPCODE: |
481 | { |
1415 | { |
482 | aio_req req; |
1416 | dREQ; |
483 | |
|
|
484 | Newz (0, req, 1, aio_cb); |
|
|
485 | |
|
|
486 | if (!req) |
|
|
487 | croak ("out of memory during aio_req allocation"); |
|
|
488 | |
1417 | |
489 | req->type = ix; |
1418 | req->type = ix; |
490 | req->fh = newSVsv (fh); |
1419 | req->sv1 = newSVsv (fh); |
491 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1420 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
492 | req->callback = SvREFCNT_inc (callback); |
|
|
493 | |
1421 | |
494 | send_req (req); |
1422 | REQ_SEND (req); |
495 | } |
1423 | } |
496 | |
1424 | |
497 | void |
1425 | void |
498 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1426 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
499 | SV * fh |
|
|
500 | UV offset |
|
|
501 | IV length |
|
|
502 | SV * data |
|
|
503 | IV dataoffset |
|
|
504 | SV * callback |
|
|
505 | ALIAS: |
1427 | ALIAS: |
506 | aio_read = REQ_READ |
1428 | aio_read = REQ_READ |
507 | aio_write = REQ_WRITE |
1429 | aio_write = REQ_WRITE |
508 | PROTOTYPE: $$$$$;$ |
1430 | PROTOTYPE: $$$$$;$ |
509 | CODE: |
1431 | PPCODE: |
510 | { |
1432 | { |
511 | aio_req req; |
|
|
512 | STRLEN svlen; |
1433 | STRLEN svlen; |
513 | char *svptr = SvPV (data, svlen); |
1434 | char *svptr = SvPVbyte (data, svlen); |
|
|
1435 | UV len = SvUV (length); |
514 | |
1436 | |
515 | SvUPGRADE (data, SVt_PV); |
1437 | SvUPGRADE (data, SVt_PV); |
516 | SvPOK_on (data); |
1438 | SvPOK_on (data); |
517 | |
1439 | |
518 | if (dataoffset < 0) |
1440 | if (dataoffset < 0) |
519 | dataoffset += svlen; |
1441 | dataoffset += svlen; |
520 | |
1442 | |
521 | if (dataoffset < 0 || dataoffset > svlen) |
1443 | if (dataoffset < 0 || dataoffset > svlen) |
522 | croak ("data offset outside of string"); |
1444 | croak ("dataoffset outside of data scalar"); |
523 | |
1445 | |
524 | if (ix == REQ_WRITE) |
1446 | if (ix == REQ_WRITE) |
525 | { |
1447 | { |
526 | /* write: check length and adjust. */ |
1448 | /* write: check length and adjust. */ |
527 | if (length < 0 || length + dataoffset > svlen) |
1449 | if (!SvOK (length) || len + dataoffset > svlen) |
528 | length = svlen - dataoffset; |
1450 | len = svlen - dataoffset; |
529 | } |
1451 | } |
530 | else |
1452 | else |
531 | { |
1453 | { |
532 | /* read: grow scalar as necessary */ |
1454 | /* read: grow scalar as necessary */ |
533 | svptr = SvGROW (data, length + dataoffset); |
1455 | svptr = SvGROW (data, len + dataoffset + 1); |
534 | } |
1456 | } |
535 | |
1457 | |
536 | if (length < 0) |
1458 | if (len < 0) |
537 | croak ("length must not be negative"); |
1459 | croak ("length must not be negative"); |
538 | |
1460 | |
539 | Newz (0, req, 1, aio_cb); |
1461 | { |
|
|
1462 | dREQ; |
540 | |
1463 | |
541 | if (!req) |
|
|
542 | croak ("out of memory during aio_req allocation"); |
|
|
543 | |
|
|
544 | req->type = ix; |
1464 | req->type = ix; |
545 | req->fh = newSVsv (fh); |
1465 | req->sv1 = newSVsv (fh); |
546 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1466 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
547 | : IoOFP (sv_2io (fh))); |
1467 | : IoOFP (sv_2io (fh))); |
548 | req->offset = offset; |
1468 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
549 | req->length = length; |
1469 | req->size = len; |
550 | req->data = SvREFCNT_inc (data); |
1470 | req->sv2 = SvREFCNT_inc (data); |
551 | req->dataptr = (char *)svptr + dataoffset; |
1471 | req->ptr1 = (char *)svptr + dataoffset; |
552 | req->callback = SvREFCNT_inc (callback); |
1472 | req->stroffset = dataoffset; |
553 | |
1473 | |
554 | send_req (req); |
1474 | if (!SvREADONLY (data)) |
555 | } |
1475 | { |
|
|
1476 | SvREADONLY_on (data); |
|
|
1477 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1478 | } |
556 | |
1479 | |
|
|
1480 | REQ_SEND; |
|
|
1481 | } |
|
|
1482 | } |
|
|
1483 | |
557 | void |
1484 | void |
|
|
1485 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1486 | PROTOTYPE: $$;$ |
|
|
1487 | PPCODE: |
|
|
1488 | { |
|
|
1489 | SV *data; |
|
|
1490 | dREQ; |
|
|
1491 | |
|
|
1492 | data = newSV (NAME_MAX); |
|
|
1493 | SvPOK_on (data); |
|
|
1494 | |
|
|
1495 | req->type = REQ_READLINK; |
|
|
1496 | req->sv1 = newSVsv (path); |
|
|
1497 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1498 | req->sv2 = data; |
|
|
1499 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1500 | |
|
|
1501 | REQ_SEND; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void |
|
|
1505 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
|
|
1506 | PROTOTYPE: $$$$;$ |
|
|
1507 | PPCODE: |
|
|
1508 | { |
|
|
1509 | dREQ; |
|
|
1510 | |
|
|
1511 | req->type = REQ_SENDFILE; |
|
|
1512 | req->sv1 = newSVsv (out_fh); |
|
|
1513 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1514 | req->sv2 = newSVsv (in_fh); |
|
|
1515 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1516 | req->offs = SvVAL64 (in_offset); |
|
|
1517 | req->size = length; |
|
|
1518 | |
|
|
1519 | REQ_SEND; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | void |
558 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1523 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
559 | SV * fh |
|
|
560 | UV offset |
|
|
561 | IV length |
|
|
562 | SV * callback |
|
|
563 | PROTOTYPE: $$$;$ |
1524 | PROTOTYPE: $$$;$ |
564 | CODE: |
1525 | PPCODE: |
565 | { |
1526 | { |
566 | aio_req req; |
1527 | dREQ; |
567 | |
|
|
568 | if (length < 0) |
|
|
569 | croak ("length must not be negative"); |
|
|
570 | |
|
|
571 | Newz (0, req, 1, aio_cb); |
|
|
572 | |
|
|
573 | if (!req) |
|
|
574 | croak ("out of memory during aio_req allocation"); |
|
|
575 | |
1528 | |
576 | req->type = REQ_READAHEAD; |
1529 | req->type = REQ_READAHEAD; |
577 | req->fh = newSVsv (fh); |
1530 | req->sv1 = newSVsv (fh); |
578 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1531 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
579 | req->offset = offset; |
1532 | req->offs = SvVAL64 (offset); |
580 | req->length = length; |
1533 | req->size = length; |
581 | req->callback = SvREFCNT_inc (callback); |
|
|
582 | |
1534 | |
583 | send_req (req); |
1535 | REQ_SEND; |
584 | } |
1536 | } |
585 | |
1537 | |
586 | void |
1538 | void |
587 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1539 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
588 | SV * fh_or_path |
|
|
589 | SV * callback |
|
|
590 | ALIAS: |
1540 | ALIAS: |
591 | aio_stat = REQ_STAT |
1541 | aio_stat = REQ_STAT |
592 | aio_lstat = REQ_LSTAT |
1542 | aio_lstat = REQ_LSTAT |
593 | CODE: |
1543 | PPCODE: |
594 | { |
1544 | { |
595 | aio_req req; |
1545 | dREQ; |
596 | |
1546 | |
597 | Newz (0, req, 1, aio_cb); |
1547 | req->ptr2 = malloc (sizeof (Stat_t)); |
598 | |
|
|
599 | if (!req) |
1548 | if (!req->ptr2) |
600 | croak ("out of memory during aio_req allocation"); |
1549 | { |
601 | |
1550 | req_destroy (req); |
602 | New (0, req->statdata, 1, Stat_t); |
|
|
603 | |
|
|
604 | if (!req->statdata) |
|
|
605 | croak ("out of memory during aio_req->statdata allocation"); |
1551 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | req->flags |= FLAG_PTR2_FREE; |
|
|
1555 | req->sv1 = newSVsv (fh_or_path); |
606 | |
1556 | |
607 | if (SvPOK (fh_or_path)) |
1557 | if (SvPOK (fh_or_path)) |
608 | { |
1558 | { |
609 | req->type = ix; |
1559 | req->type = ix; |
610 | req->data = newSVsv (fh_or_path); |
|
|
611 | req->dataptr = SvPV_nolen (req->data); |
1560 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
612 | } |
1561 | } |
613 | else |
1562 | else |
614 | { |
1563 | { |
615 | req->type = REQ_FSTAT; |
1564 | req->type = REQ_FSTAT; |
616 | req->fh = newSVsv (fh_or_path); |
|
|
617 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1565 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
618 | } |
1566 | } |
619 | |
1567 | |
620 | req->callback = SvREFCNT_inc (callback); |
1568 | REQ_SEND; |
621 | |
|
|
622 | send_req (req); |
|
|
623 | } |
1569 | } |
624 | |
1570 | |
625 | void |
1571 | void |
|
|
1572 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1573 | PPCODE: |
|
|
1574 | { |
|
|
1575 | dREQ; |
|
|
1576 | |
|
|
1577 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1578 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1579 | req->sv1 = newSVsv (fh_or_path); |
|
|
1580 | |
|
|
1581 | if (SvPOK (fh_or_path)) |
|
|
1582 | { |
|
|
1583 | req->type = REQ_UTIME; |
|
|
1584 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1585 | } |
|
|
1586 | else |
|
|
1587 | { |
|
|
1588 | req->type = REQ_FUTIME; |
|
|
1589 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1590 | } |
|
|
1591 | |
|
|
1592 | REQ_SEND; |
|
|
1593 | } |
|
|
1594 | |
|
|
1595 | void |
|
|
1596 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1597 | PPCODE: |
|
|
1598 | { |
|
|
1599 | dREQ; |
|
|
1600 | |
|
|
1601 | req->mode = mode; |
|
|
1602 | req->sv1 = newSVsv (fh_or_path); |
|
|
1603 | |
|
|
1604 | if (SvPOK (fh_or_path)) |
|
|
1605 | { |
|
|
1606 | req->type = REQ_CHMOD; |
|
|
1607 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1608 | } |
|
|
1609 | else |
|
|
1610 | { |
|
|
1611 | req->type = REQ_FCHMOD; |
|
|
1612 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1613 | } |
|
|
1614 | |
|
|
1615 | REQ_SEND; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | void |
|
|
1619 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1620 | PPCODE: |
|
|
1621 | { |
|
|
1622 | dREQ; |
|
|
1623 | |
|
|
1624 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1625 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1626 | req->sv1 = newSVsv (fh_or_path); |
|
|
1627 | |
|
|
1628 | if (SvPOK (fh_or_path)) |
|
|
1629 | { |
|
|
1630 | req->type = REQ_CHOWN; |
|
|
1631 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1632 | } |
|
|
1633 | else |
|
|
1634 | { |
|
|
1635 | req->type = REQ_FCHOWN; |
|
|
1636 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | REQ_SEND; |
|
|
1640 | } |
|
|
1641 | |
|
|
1642 | void |
626 | aio_unlink(pathname,callback=&PL_sv_undef) |
1643 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
627 | SV * pathname |
1644 | ALIAS: |
628 | SV * callback |
1645 | aio_unlink = REQ_UNLINK |
|
|
1646 | aio_rmdir = REQ_RMDIR |
|
|
1647 | aio_readdir = REQ_READDIR |
|
|
1648 | PPCODE: |
|
|
1649 | { |
|
|
1650 | dREQ; |
|
|
1651 | |
|
|
1652 | req->type = ix; |
|
|
1653 | req->sv1 = newSVsv (pathname); |
|
|
1654 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1655 | |
|
|
1656 | REQ_SEND; |
|
|
1657 | } |
|
|
1658 | |
|
|
1659 | void |
|
|
1660 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1661 | PPCODE: |
|
|
1662 | { |
|
|
1663 | dREQ; |
|
|
1664 | |
|
|
1665 | req->type = REQ_MKDIR; |
|
|
1666 | req->sv1 = newSVsv (pathname); |
|
|
1667 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1668 | req->mode = mode; |
|
|
1669 | |
|
|
1670 | REQ_SEND; |
|
|
1671 | } |
|
|
1672 | |
|
|
1673 | void |
|
|
1674 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1675 | ALIAS: |
|
|
1676 | aio_link = REQ_LINK |
|
|
1677 | aio_symlink = REQ_SYMLINK |
|
|
1678 | aio_rename = REQ_RENAME |
|
|
1679 | PPCODE: |
|
|
1680 | { |
|
|
1681 | dREQ; |
|
|
1682 | |
|
|
1683 | req->type = ix; |
|
|
1684 | req->sv2 = newSVsv (oldpath); |
|
|
1685 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1686 | req->sv1 = newSVsv (newpath); |
|
|
1687 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1688 | |
|
|
1689 | REQ_SEND; |
|
|
1690 | } |
|
|
1691 | |
|
|
1692 | void |
|
|
1693 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1694 | PPCODE: |
|
|
1695 | { |
|
|
1696 | dREQ; |
|
|
1697 | |
|
|
1698 | req->type = REQ_MKNOD; |
|
|
1699 | req->sv1 = newSVsv (pathname); |
|
|
1700 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1701 | req->mode = (mode_t)mode; |
|
|
1702 | req->offs = dev; |
|
|
1703 | |
|
|
1704 | REQ_SEND; |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | void |
|
|
1708 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1709 | PPCODE: |
|
|
1710 | { |
|
|
1711 | dREQ; |
|
|
1712 | |
|
|
1713 | req->type = REQ_BUSY; |
|
|
1714 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1715 | |
|
|
1716 | REQ_SEND; |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | void |
|
|
1720 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1721 | PROTOTYPE: ;$ |
|
|
1722 | PPCODE: |
|
|
1723 | { |
|
|
1724 | dREQ; |
|
|
1725 | |
|
|
1726 | req->type = REQ_GROUP; |
|
|
1727 | |
|
|
1728 | req_send (req); |
|
|
1729 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1730 | } |
|
|
1731 | |
|
|
1732 | void |
|
|
1733 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1734 | PPCODE: |
|
|
1735 | { |
|
|
1736 | dREQ; |
|
|
1737 | |
|
|
1738 | req->type = REQ_NOP; |
|
|
1739 | |
|
|
1740 | REQ_SEND; |
|
|
1741 | } |
|
|
1742 | |
|
|
1743 | int |
|
|
1744 | aioreq_pri (int pri = 0) |
|
|
1745 | PROTOTYPE: ;$ |
629 | CODE: |
1746 | CODE: |
630 | { |
1747 | RETVAL = next_pri - PRI_BIAS; |
631 | aio_req req; |
1748 | if (items > 0) |
632 | |
1749 | { |
633 | Newz (0, req, 1, aio_cb); |
1750 | if (pri < PRI_MIN) pri = PRI_MIN; |
634 | |
1751 | if (pri > PRI_MAX) pri = PRI_MAX; |
635 | if (!req) |
1752 | next_pri = pri + PRI_BIAS; |
636 | croak ("out of memory during aio_req allocation"); |
1753 | } |
637 | |
1754 | OUTPUT: |
638 | req->type = REQ_UNLINK; |
1755 | RETVAL |
639 | req->data = newSVsv (pathname); |
|
|
640 | req->dataptr = SvPV_nolen (req->data); |
|
|
641 | req->callback = SvREFCNT_inc (callback); |
|
|
642 | |
|
|
643 | send_req (req); |
|
|
644 | } |
|
|
645 | |
1756 | |
646 | void |
1757 | void |
|
|
1758 | aioreq_nice (int nice = 0) |
|
|
1759 | CODE: |
|
|
1760 | nice = next_pri - nice; |
|
|
1761 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1762 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1763 | next_pri = nice + PRI_BIAS; |
|
|
1764 | |
|
|
1765 | void |
647 | flush() |
1766 | flush () |
648 | PROTOTYPE: |
1767 | PROTOTYPE: |
649 | CODE: |
1768 | CODE: |
650 | while (nreqs) |
1769 | while (nreqs) |
651 | { |
1770 | { |
652 | poll_wait (); |
1771 | poll_wait (); |
653 | poll_cb (); |
1772 | poll_cb (); |
654 | } |
1773 | } |
655 | |
1774 | |
656 | void |
1775 | int |
657 | poll() |
1776 | poll() |
658 | PROTOTYPE: |
1777 | PROTOTYPE: |
659 | CODE: |
1778 | CODE: |
660 | if (nreqs) |
|
|
661 | { |
|
|
662 | poll_wait (); |
1779 | poll_wait (); |
663 | poll_cb (); |
1780 | RETVAL = poll_cb (); |
664 | } |
1781 | OUTPUT: |
|
|
1782 | RETVAL |
665 | |
1783 | |
666 | int |
1784 | int |
667 | poll_fileno() |
1785 | poll_fileno() |
668 | PROTOTYPE: |
1786 | PROTOTYPE: |
669 | CODE: |
1787 | CODE: |
… | |
… | |
681 | |
1799 | |
682 | void |
1800 | void |
683 | poll_wait() |
1801 | poll_wait() |
684 | PROTOTYPE: |
1802 | PROTOTYPE: |
685 | CODE: |
1803 | CODE: |
686 | if (nreqs) |
|
|
687 | poll_wait (); |
1804 | poll_wait (); |
|
|
1805 | |
|
|
1806 | void |
|
|
1807 | setsig (int signum = SIGIO) |
|
|
1808 | PROTOTYPE: ;$ |
|
|
1809 | CODE: |
|
|
1810 | { |
|
|
1811 | if (block_sig_level) |
|
|
1812 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1813 | |
|
|
1814 | LOCK (reslock); |
|
|
1815 | main_tid = pthread_self (); |
|
|
1816 | main_sig = signum; |
|
|
1817 | UNLOCK (reslock); |
|
|
1818 | |
|
|
1819 | if (main_sig && npending) |
|
|
1820 | pthread_kill (main_tid, main_sig); |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | void |
|
|
1824 | aio_block (SV *cb) |
|
|
1825 | PROTOTYPE: & |
|
|
1826 | PPCODE: |
|
|
1827 | { |
|
|
1828 | int count; |
|
|
1829 | |
|
|
1830 | block_sig (); |
|
|
1831 | PUSHMARK (SP); |
|
|
1832 | PUTBACK; |
|
|
1833 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1834 | SPAGAIN; |
|
|
1835 | unblock_sig (); |
|
|
1836 | |
|
|
1837 | if (SvTRUE (ERRSV)) |
|
|
1838 | croak (0); |
|
|
1839 | |
|
|
1840 | XSRETURN (count); |
|
|
1841 | } |
688 | |
1842 | |
689 | int |
1843 | int |
690 | nreqs() |
1844 | nreqs() |
691 | PROTOTYPE: |
1845 | PROTOTYPE: |
692 | CODE: |
1846 | CODE: |
693 | RETVAL = nreqs; |
1847 | RETVAL = nreqs; |
694 | OUTPUT: |
1848 | OUTPUT: |
695 | RETVAL |
1849 | RETVAL |
696 | |
1850 | |
|
|
1851 | int |
|
|
1852 | nready() |
|
|
1853 | PROTOTYPE: |
|
|
1854 | CODE: |
|
|
1855 | RETVAL = get_nready (); |
|
|
1856 | OUTPUT: |
|
|
1857 | RETVAL |
|
|
1858 | |
|
|
1859 | int |
|
|
1860 | npending() |
|
|
1861 | PROTOTYPE: |
|
|
1862 | CODE: |
|
|
1863 | RETVAL = get_npending (); |
|
|
1864 | OUTPUT: |
|
|
1865 | RETVAL |
|
|
1866 | |
|
|
1867 | int |
|
|
1868 | nthreads() |
|
|
1869 | PROTOTYPE: |
|
|
1870 | CODE: |
|
|
1871 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1872 | RETVAL = started; |
|
|
1873 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1874 | OUTPUT: |
|
|
1875 | RETVAL |
|
|
1876 | |
|
|
1877 | PROTOTYPES: DISABLE |
|
|
1878 | |
|
|
1879 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1880 | |
|
|
1881 | void |
|
|
1882 | cancel (aio_req_ornot req) |
|
|
1883 | CODE: |
|
|
1884 | req_cancel (req); |
|
|
1885 | |
|
|
1886 | void |
|
|
1887 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1888 | CODE: |
|
|
1889 | SvREFCNT_dec (req->callback); |
|
|
1890 | req->callback = newSVsv (callback); |
|
|
1891 | |
|
|
1892 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1893 | |
|
|
1894 | void |
|
|
1895 | add (aio_req grp, ...) |
|
|
1896 | PPCODE: |
|
|
1897 | { |
|
|
1898 | int i; |
|
|
1899 | aio_req req; |
|
|
1900 | |
|
|
1901 | if (main_sig && !block_sig_level) |
|
|
1902 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1903 | |
|
|
1904 | if (grp->int1 == 2) |
|
|
1905 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1906 | |
|
|
1907 | for (i = 1; i < items; ++i ) |
|
|
1908 | { |
|
|
1909 | if (GIMME_V != G_VOID) |
|
|
1910 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1911 | |
|
|
1912 | req = SvAIO_REQ (ST (i)); |
|
|
1913 | |
|
|
1914 | if (req) |
|
|
1915 | { |
|
|
1916 | ++grp->size; |
|
|
1917 | req->grp = grp; |
|
|
1918 | |
|
|
1919 | req->grp_prev = 0; |
|
|
1920 | req->grp_next = grp->grp_first; |
|
|
1921 | |
|
|
1922 | if (grp->grp_first) |
|
|
1923 | grp->grp_first->grp_prev = req; |
|
|
1924 | |
|
|
1925 | grp->grp_first = req; |
|
|
1926 | } |
|
|
1927 | } |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | void |
|
|
1931 | cancel_subs (aio_req_ornot req) |
|
|
1932 | CODE: |
|
|
1933 | req_cancel_subs (req); |
|
|
1934 | |
|
|
1935 | void |
|
|
1936 | result (aio_req grp, ...) |
|
|
1937 | CODE: |
|
|
1938 | { |
|
|
1939 | int i; |
|
|
1940 | AV *av; |
|
|
1941 | |
|
|
1942 | grp->errorno = errno; |
|
|
1943 | |
|
|
1944 | av = newAV (); |
|
|
1945 | |
|
|
1946 | for (i = 1; i < items; ++i ) |
|
|
1947 | av_push (av, newSVsv (ST (i))); |
|
|
1948 | |
|
|
1949 | SvREFCNT_dec (grp->sv1); |
|
|
1950 | grp->sv1 = (SV *)av; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void |
|
|
1954 | errno (aio_req grp, int errorno = errno) |
|
|
1955 | CODE: |
|
|
1956 | grp->errorno = errorno; |
|
|
1957 | |
|
|
1958 | void |
|
|
1959 | limit (aio_req grp, int limit) |
|
|
1960 | CODE: |
|
|
1961 | grp->int2 = limit; |
|
|
1962 | aio_grp_feed (grp); |
|
|
1963 | |
|
|
1964 | void |
|
|
1965 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1966 | CODE: |
|
|
1967 | { |
|
|
1968 | SvREFCNT_dec (grp->sv2); |
|
|
1969 | grp->sv2 = newSVsv (callback); |
|
|
1970 | |
|
|
1971 | if (grp->int2 <= 0) |
|
|
1972 | grp->int2 = 2; |
|
|
1973 | |
|
|
1974 | aio_grp_feed (grp); |
|
|
1975 | } |
|
|
1976 | |