1 | #define _REENTRANT 1 |
1 | #include "xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
9 | #include <stddef.h> |
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10 | #include <stdlib.h> |
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11 | #include <errno.h> |
13 | #include <sys/types.h> |
12 | #include <sys/types.h> |
14 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
15 | #include <limits.h> |
14 | #include <limits.h> |
16 | #include <unistd.h> |
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17 | #include <fcntl.h> |
15 | #include <fcntl.h> |
18 | #include <signal.h> |
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19 | #include <sched.h> |
16 | #include <sched.h> |
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17 | |
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18 | #ifdef _WIN32 |
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19 | |
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20 | # define SIGIO 0 |
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21 | typedef Direntry_t X_DIRENT; |
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22 | #undef malloc |
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23 | #undef free |
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24 | |
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25 | // perl overrides all those nice win32 functions |
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26 | # undef open |
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27 | # undef read |
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28 | # undef write |
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29 | # undef send |
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30 | # undef recv |
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31 | # undef stat |
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32 | # undef fstat |
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33 | # define lstat stat |
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34 | # undef truncate |
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35 | # undef ftruncate |
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36 | # undef open |
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37 | # undef close |
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38 | # undef unlink |
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39 | # undef rmdir |
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40 | # undef rename |
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41 | # undef lseek |
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42 | |
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43 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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44 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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45 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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46 | # define symlink(a,b) (errno = ENOSYS, -1) |
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47 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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48 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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49 | # define truncate(a,b) (errno = ENOSYS, -1) |
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50 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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51 | # define fsync(fd) _commit (fd) |
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52 | # define opendir(fd) (errno = ENOSYS, 0) |
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53 | # define readdir(fd) (errno = ENOSYS, -1) |
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54 | # define closedir(fd) (errno = ENOSYS, -1) |
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55 | # define mkdir(a,b) mkdir (a) |
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56 | |
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57 | #else |
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58 | |
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59 | # include "autoconf/config.h" |
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60 | # include <sys/time.h> |
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61 | # include <sys/select.h> |
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62 | # include <unistd.h> |
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63 | # include <utime.h> |
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64 | # include <signal.h> |
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65 | typedef struct dirent X_DIRENT; |
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66 | |
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67 | #endif |
20 | |
68 | |
21 | #if HAVE_SENDFILE |
69 | #if HAVE_SENDFILE |
22 | # if __linux |
70 | # if __linux |
23 | # include <sys/sendfile.h> |
71 | # include <sys/sendfile.h> |
24 | # elif __freebsd |
72 | # elif __freebsd |
… | |
… | |
31 | # else |
79 | # else |
32 | # error sendfile support requested but not available |
80 | # error sendfile support requested but not available |
33 | # endif |
81 | # endif |
34 | #endif |
82 | #endif |
35 | |
83 | |
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84 | /* number of seconds after which idle threads exit */ |
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85 | #define IDLE_TIMEOUT 10 |
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86 | |
36 | /* used for struct dirent, AIX doesn't provide it */ |
87 | /* used for struct dirent, AIX doesn't provide it */ |
37 | #ifndef NAME_MAX |
88 | #ifndef NAME_MAX |
38 | # define NAME_MAX 4096 |
89 | # define NAME_MAX 4096 |
39 | #endif |
90 | #endif |
40 | |
91 | |
41 | #if __ia64 |
92 | /* buffer size for various temporary buffers */ |
42 | # define STACKSIZE 65536 |
93 | #define AIO_BUFSIZE 65536 |
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94 | |
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95 | /* use NV for 32 bit perls as it allows larger offsets */ |
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96 | #if IVSIZE >= 8 |
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97 | # define SvVAL64 SvIV |
43 | #else |
98 | #else |
44 | # define STACKSIZE 8192 |
99 | # define SvVAL64 SvNV |
45 | #endif |
100 | #endif |
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101 | |
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102 | static HV *stash; |
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103 | |
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104 | #define dBUF \ |
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105 | char *aio_buf; \ |
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106 | X_LOCK (wrklock); \ |
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107 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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108 | X_UNLOCK (wrklock); \ |
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109 | if (!aio_buf) \ |
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110 | return -1; |
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111 | |
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112 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
46 | |
113 | |
47 | enum { |
114 | enum { |
48 | REQ_QUIT, |
115 | REQ_QUIT, |
49 | REQ_OPEN, REQ_CLOSE, |
116 | REQ_OPEN, REQ_CLOSE, |
50 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
117 | REQ_READ, REQ_WRITE, |
51 | REQ_SENDFILE, |
118 | REQ_READAHEAD, REQ_SENDFILE, |
52 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
119 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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120 | REQ_TRUNCATE, REQ_FTRUNCATE, |
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121 | REQ_UTIME, REQ_FUTIME, |
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122 | REQ_CHMOD, REQ_FCHMOD, |
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123 | REQ_CHOWN, REQ_FCHOWN, |
53 | REQ_FSYNC, REQ_FDATASYNC, |
124 | REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC, |
54 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
125 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
55 | REQ_READDIR, |
126 | REQ_MKNOD, REQ_READDIR, |
56 | REQ_LINK, REQ_SYMLINK, |
127 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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128 | REQ_GROUP, REQ_NOP, |
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129 | REQ_BUSY, |
57 | }; |
130 | }; |
58 | |
131 | |
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132 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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133 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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134 | |
59 | typedef struct aio_cb { |
135 | typedef struct aio_cb |
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136 | { |
60 | struct aio_cb *volatile next; |
137 | struct aio_cb *volatile next; |
61 | |
138 | |
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139 | SV *callback; |
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140 | SV *sv1, *sv2; |
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141 | void *ptr1, *ptr2; |
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142 | off_t offs; |
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143 | size_t size; |
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144 | ssize_t result; |
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145 | double nv1, nv2; |
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146 | |
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147 | STRLEN stroffset; |
62 | int type; |
148 | int type; |
63 | |
149 | int int1, int2, int3; |
64 | /* should receive a cleanup, with unions */ |
150 | int errorno; |
65 | int fd, fd2; |
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66 | off_t offset; |
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67 | size_t length; |
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68 | ssize_t result; |
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69 | mode_t mode; /* open */ |
151 | mode_t mode; /* open */ |
70 | int errorno; |
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71 | SV *data, *callback; |
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72 | SV *fh, *fh2; |
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73 | void *dataptr, *data2ptr; |
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74 | STRLEN dataoffset; |
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75 | |
152 | |
76 | Stat_t *statdata; |
153 | unsigned char flags; |
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154 | unsigned char pri; |
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155 | |
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156 | SV *self; /* the perl counterpart of this request, if any */ |
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157 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
77 | } aio_cb; |
158 | } aio_cb; |
78 | |
159 | |
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160 | enum { |
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161 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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162 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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163 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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164 | }; |
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165 | |
79 | typedef aio_cb *aio_req; |
166 | typedef aio_cb *aio_req; |
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167 | typedef aio_cb *aio_req_ornot; |
80 | |
168 | |
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169 | enum { |
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170 | PRI_MIN = -4, |
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171 | PRI_MAX = 4, |
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172 | |
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173 | DEFAULT_PRI = 0, |
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174 | PRI_BIAS = -PRI_MIN, |
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175 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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176 | }; |
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177 | |
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178 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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179 | |
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180 | static unsigned int max_poll_time = 0; |
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181 | static unsigned int max_poll_reqs = 0; |
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182 | |
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183 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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184 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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185 | { |
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186 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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187 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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188 | } |
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189 | |
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190 | static thread_t main_tid; |
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191 | static int main_sig; |
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192 | static int block_sig_level; |
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193 | |
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194 | void block_sig (void) |
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195 | { |
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196 | sigset_t ss; |
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197 | |
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198 | if (block_sig_level++) |
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199 | return; |
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200 | |
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201 | if (!main_sig) |
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202 | return; |
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203 | |
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204 | sigemptyset (&ss); |
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205 | sigaddset (&ss, main_sig); |
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206 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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207 | } |
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208 | |
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209 | void unblock_sig (void) |
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210 | { |
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211 | sigset_t ss; |
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212 | |
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213 | if (--block_sig_level) |
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214 | return; |
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215 | |
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216 | if (!main_sig) |
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217 | return; |
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218 | |
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219 | sigemptyset (&ss); |
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220 | sigaddset (&ss, main_sig); |
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221 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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222 | } |
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223 | |
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224 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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225 | |
81 | static int started, wanted; |
226 | static unsigned int started, idle, wanted; |
82 | static volatile int nreqs; |
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83 | static int max_outstanding = 1<<30; |
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84 | static int respipe [2]; |
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85 | |
227 | |
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228 | /* worker threads management */ |
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229 | static mutex_t wrklock = X_MUTEX_INIT; |
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230 | |
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231 | typedef struct worker { |
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232 | /* locked by wrklock */ |
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233 | struct worker *prev, *next; |
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234 | |
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235 | thread_t tid; |
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236 | |
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237 | /* locked by reslock, reqlock or wrklock */ |
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238 | aio_req req; /* currently processed request */ |
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239 | void *dbuf; |
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240 | DIR *dirp; |
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241 | } worker; |
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242 | |
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243 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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244 | |
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245 | static void worker_clear (worker *wrk) |
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246 | { |
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247 | if (wrk->dirp) |
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248 | { |
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249 | closedir (wrk->dirp); |
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250 | wrk->dirp = 0; |
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251 | } |
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252 | |
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253 | if (wrk->dbuf) |
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254 | { |
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255 | free (wrk->dbuf); |
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256 | wrk->dbuf = 0; |
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257 | } |
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258 | } |
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259 | |
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260 | static void worker_free (worker *wrk) |
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261 | { |
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262 | wrk->next->prev = wrk->prev; |
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263 | wrk->prev->next = wrk->next; |
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264 | |
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265 | free (wrk); |
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266 | } |
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267 | |
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268 | static volatile unsigned int nreqs, nready, npending; |
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269 | static volatile unsigned int max_idle = 4; |
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270 | static volatile unsigned int max_outstanding = 0xffffffff; |
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271 | static int respipe_osf [2], respipe [2] = { -1, -1 }; |
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272 | |
86 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
273 | static mutex_t reslock = X_MUTEX_INIT; |
87 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
274 | static mutex_t reqlock = X_MUTEX_INIT; |
88 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
275 | static cond_t reqwait = X_COND_INIT; |
89 | |
276 | |
90 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
277 | #if WORDACCESS_UNSAFE |
91 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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92 | |
278 | |
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279 | static unsigned int get_nready (void) |
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280 | { |
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281 | unsigned int retval; |
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282 | |
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283 | X_LOCK (reqlock); |
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284 | retval = nready; |
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285 | X_UNLOCK (reqlock); |
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286 | |
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287 | return retval; |
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288 | } |
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289 | |
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290 | static unsigned int get_npending (void) |
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291 | { |
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292 | unsigned int retval; |
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293 | |
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294 | X_LOCK (reslock); |
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295 | retval = npending; |
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296 | X_UNLOCK (reslock); |
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297 | |
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298 | return retval; |
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299 | } |
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300 | |
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301 | static unsigned int get_nthreads (void) |
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302 | { |
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303 | unsigned int retval; |
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304 | |
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305 | X_LOCK (wrklock); |
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306 | retval = started; |
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307 | X_UNLOCK (wrklock); |
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308 | |
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309 | return retval; |
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310 | } |
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311 | |
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312 | #else |
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313 | |
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314 | # define get_nready() nready |
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315 | # define get_npending() npending |
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316 | # define get_nthreads() started |
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317 | |
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318 | #endif |
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319 | |
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320 | /* |
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321 | * a somewhat faster data structure might be nice, but |
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322 | * with 8 priorities this actually needs <20 insns |
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323 | * per shift, the most expensive operation. |
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324 | */ |
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325 | typedef struct { |
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326 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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327 | int size; |
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328 | } reqq; |
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329 | |
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330 | static reqq req_queue; |
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331 | static reqq res_queue; |
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332 | |
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333 | int reqq_push (reqq *q, aio_req req) |
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334 | { |
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335 | int pri = req->pri; |
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336 | req->next = 0; |
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337 | |
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338 | if (q->qe[pri]) |
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339 | { |
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340 | q->qe[pri]->next = req; |
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341 | q->qe[pri] = req; |
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342 | } |
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343 | else |
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344 | q->qe[pri] = q->qs[pri] = req; |
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345 | |
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346 | return q->size++; |
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347 | } |
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348 | |
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349 | aio_req reqq_shift (reqq *q) |
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350 | { |
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351 | int pri; |
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352 | |
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353 | if (!q->size) |
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354 | return 0; |
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355 | |
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356 | --q->size; |
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357 | |
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358 | for (pri = NUM_PRI; pri--; ) |
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359 | { |
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360 | aio_req req = q->qs[pri]; |
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361 | |
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362 | if (req) |
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363 | { |
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364 | if (!(q->qs[pri] = req->next)) |
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365 | q->qe[pri] = 0; |
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366 | |
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367 | return req; |
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368 | } |
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369 | } |
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370 | |
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371 | abort (); |
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372 | } |
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373 | |
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374 | static int poll_cb (void); |
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375 | static int req_invoke (aio_req req); |
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376 | static void req_destroy (aio_req req); |
93 | static void free_req (aio_req req) |
377 | static void req_cancel (aio_req req); |
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378 | |
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379 | /* must be called at most once */ |
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380 | static SV *req_sv (aio_req req, const char *klass) |
94 | { |
381 | { |
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382 | if (!req->self) |
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383 | { |
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384 | req->self = (SV *)newHV (); |
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385 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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386 | } |
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387 | |
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388 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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389 | } |
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390 | |
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391 | static aio_req SvAIO_REQ (SV *sv) |
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392 | { |
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393 | MAGIC *mg; |
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394 | |
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395 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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396 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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397 | |
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398 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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399 | |
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400 | return mg ? (aio_req)mg->mg_ptr : 0; |
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401 | } |
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402 | |
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403 | static void aio_grp_feed (aio_req grp) |
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404 | { |
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405 | block_sig (); |
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406 | |
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407 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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408 | { |
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409 | int old_len = grp->size; |
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410 | |
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411 | if (grp->sv2 && SvOK (grp->sv2)) |
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412 | { |
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413 | dSP; |
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414 | |
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415 | ENTER; |
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416 | SAVETMPS; |
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417 | PUSHMARK (SP); |
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418 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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419 | PUTBACK; |
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420 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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421 | SPAGAIN; |
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422 | FREETMPS; |
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423 | LEAVE; |
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424 | } |
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425 | |
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426 | /* stop if no progress has been made */ |
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427 | if (old_len == grp->size) |
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428 | { |
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429 | SvREFCNT_dec (grp->sv2); |
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430 | grp->sv2 = 0; |
|
|
431 | break; |
|
|
432 | } |
|
|
433 | } |
|
|
434 | |
|
|
435 | unblock_sig (); |
|
|
436 | } |
|
|
437 | |
|
|
438 | static void aio_grp_dec (aio_req grp) |
|
|
439 | { |
|
|
440 | --grp->size; |
|
|
441 | |
|
|
442 | /* call feeder, if applicable */ |
|
|
443 | aio_grp_feed (grp); |
|
|
444 | |
|
|
445 | /* finish, if done */ |
|
|
446 | if (!grp->size && grp->int1) |
|
|
447 | { |
|
|
448 | block_sig (); |
|
|
449 | |
|
|
450 | if (!req_invoke (grp)) |
|
|
451 | { |
|
|
452 | req_destroy (grp); |
|
|
453 | unblock_sig (); |
|
|
454 | croak (0); |
|
|
455 | } |
|
|
456 | |
|
|
457 | req_destroy (grp); |
|
|
458 | unblock_sig (); |
|
|
459 | } |
|
|
460 | } |
|
|
461 | |
|
|
462 | static int req_invoke (aio_req req) |
|
|
463 | { |
|
|
464 | dSP; |
|
|
465 | |
|
|
466 | if (req->flags & FLAG_SV2_RO_OFF) |
|
|
467 | SvREADONLY_off (req->sv2); |
|
|
468 | |
|
|
469 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
|
|
470 | { |
|
|
471 | ENTER; |
|
|
472 | SAVETMPS; |
|
|
473 | PUSHMARK (SP); |
|
|
474 | EXTEND (SP, 1); |
|
|
475 | |
|
|
476 | switch (req->type) |
|
|
477 | { |
|
|
478 | case REQ_READDIR: |
|
|
479 | { |
|
|
480 | SV *rv = &PL_sv_undef; |
|
|
481 | |
|
|
482 | if (req->result >= 0) |
|
|
483 | { |
|
|
484 | int i; |
|
|
485 | char *buf = req->ptr2; |
|
|
486 | AV *av = newAV (); |
|
|
487 | |
|
|
488 | av_extend (av, req->result - 1); |
|
|
489 | |
|
|
490 | for (i = 0; i < req->result; ++i) |
|
|
491 | { |
|
|
492 | SV *sv = newSVpv (buf, 0); |
|
|
493 | |
|
|
494 | av_store (av, i, sv); |
|
|
495 | buf += SvCUR (sv) + 1; |
|
|
496 | } |
|
|
497 | |
|
|
498 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
499 | } |
|
|
500 | |
|
|
501 | PUSHs (rv); |
|
|
502 | } |
|
|
503 | break; |
|
|
504 | |
|
|
505 | case REQ_OPEN: |
|
|
506 | { |
|
|
507 | /* convert fd to fh */ |
|
|
508 | SV *fh = &PL_sv_undef; |
|
|
509 | |
|
|
510 | if (req->result >= 0) |
|
|
511 | { |
|
|
512 | GV *gv = (GV *)sv_newmortal (); |
|
|
513 | int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
|
|
514 | char sym [64]; |
|
|
515 | int symlen; |
|
|
516 | |
|
|
517 | symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); |
|
|
518 | gv_init (gv, stash, sym, symlen, 0); |
|
|
519 | |
|
|
520 | symlen = snprintf ( |
|
|
521 | sym, |
|
|
522 | sizeof (sym), |
|
|
523 | "%s&=%d", |
|
|
524 | flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
|
|
525 | req->result |
|
|
526 | ); |
|
|
527 | |
|
|
528 | if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
|
|
529 | fh = (SV *)gv; |
|
|
530 | } |
|
|
531 | |
|
|
532 | PUSHs (fh); |
|
|
533 | } |
|
|
534 | break; |
|
|
535 | |
|
|
536 | case REQ_GROUP: |
|
|
537 | req->int1 = 2; /* mark group as finished */ |
|
|
538 | |
|
|
539 | if (req->sv1) |
|
|
540 | { |
|
|
541 | int i; |
|
|
542 | AV *av = (AV *)req->sv1; |
|
|
543 | |
|
|
544 | EXTEND (SP, AvFILL (av) + 1); |
|
|
545 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
546 | PUSHs (*av_fetch (av, i, 0)); |
|
|
547 | } |
|
|
548 | break; |
|
|
549 | |
|
|
550 | case REQ_NOP: |
|
|
551 | case REQ_BUSY: |
|
|
552 | break; |
|
|
553 | |
|
|
554 | case REQ_READLINK: |
|
|
555 | if (req->result > 0) |
|
|
556 | { |
|
|
557 | SvCUR_set (req->sv2, req->result); |
|
|
558 | *SvEND (req->sv2) = 0; |
|
|
559 | PUSHs (req->sv2); |
|
|
560 | } |
|
|
561 | break; |
|
|
562 | |
|
|
563 | case REQ_STAT: |
|
|
564 | case REQ_LSTAT: |
|
|
565 | case REQ_FSTAT: |
|
|
566 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
567 | PL_laststatval = req->result; |
|
|
568 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
569 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
570 | break; |
|
|
571 | |
|
|
572 | case REQ_READ: |
|
|
573 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
574 | *SvEND (req->sv2) = 0; |
|
|
575 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
576 | break; |
|
|
577 | |
|
|
578 | default: |
|
|
579 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
580 | break; |
|
|
581 | } |
|
|
582 | |
|
|
583 | errno = req->errorno; |
|
|
584 | |
|
|
585 | PUTBACK; |
|
|
586 | call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
|
|
587 | SPAGAIN; |
|
|
588 | |
|
|
589 | FREETMPS; |
|
|
590 | LEAVE; |
|
|
591 | |
|
|
592 | PUTBACK; |
|
|
593 | } |
|
|
594 | |
95 | if (req->data) |
595 | if (req->grp) |
96 | SvREFCNT_dec (req->data); |
596 | { |
|
|
597 | aio_req grp = req->grp; |
97 | |
598 | |
|
|
599 | /* unlink request */ |
|
|
600 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
601 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
602 | |
|
|
603 | if (grp->grp_first == req) |
|
|
604 | grp->grp_first = req->grp_next; |
|
|
605 | |
|
|
606 | aio_grp_dec (grp); |
|
|
607 | } |
|
|
608 | |
|
|
609 | return !SvTRUE (ERRSV); |
|
|
610 | } |
|
|
611 | |
|
|
612 | static void req_destroy (aio_req req) |
|
|
613 | { |
98 | if (req->fh) |
614 | if (req->self) |
|
|
615 | { |
|
|
616 | sv_unmagic (req->self, PERL_MAGIC_ext); |
99 | SvREFCNT_dec (req->fh); |
617 | SvREFCNT_dec (req->self); |
|
|
618 | } |
100 | |
619 | |
101 | if (req->fh2) |
620 | SvREFCNT_dec (req->sv1); |
102 | SvREFCNT_dec (req->fh2); |
621 | SvREFCNT_dec (req->sv2); |
103 | |
|
|
104 | if (req->statdata) |
|
|
105 | Safefree (req->statdata); |
|
|
106 | |
|
|
107 | if (req->callback) |
|
|
108 | SvREFCNT_dec (req->callback); |
622 | SvREFCNT_dec (req->callback); |
109 | |
623 | |
110 | if (req->type == REQ_READDIR && req->result >= 0) |
624 | if (req->flags & FLAG_PTR2_FREE) |
111 | free (req->data2ptr); |
625 | free (req->ptr2); |
112 | |
626 | |
113 | Safefree (req); |
627 | Safefree (req); |
114 | } |
628 | } |
115 | |
629 | |
|
|
630 | static void req_cancel_subs (aio_req grp) |
|
|
631 | { |
|
|
632 | aio_req sub; |
|
|
633 | |
|
|
634 | if (grp->type != REQ_GROUP) |
|
|
635 | return; |
|
|
636 | |
|
|
637 | SvREFCNT_dec (grp->sv2); |
|
|
638 | grp->sv2 = 0; |
|
|
639 | |
|
|
640 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
641 | req_cancel (sub); |
|
|
642 | } |
|
|
643 | |
|
|
644 | static void req_cancel (aio_req req) |
|
|
645 | { |
|
|
646 | req->flags |= FLAG_CANCELLED; |
|
|
647 | |
|
|
648 | req_cancel_subs (req); |
|
|
649 | } |
|
|
650 | |
|
|
651 | #ifdef USE_SOCKETS_AS_HANDLES |
|
|
652 | # define TO_SOCKET(x) (win32_get_osfhandle (x)) |
|
|
653 | #else |
|
|
654 | # define TO_SOCKET(x) (x) |
|
|
655 | #endif |
|
|
656 | |
116 | static void |
657 | static void |
117 | poll_wait () |
658 | create_respipe (void) |
118 | { |
659 | { |
119 | if (nreqs && !ress) |
660 | int old_readfd = respipe [0]; |
|
|
661 | |
|
|
662 | if (respipe [1] >= 0) |
|
|
663 | respipe_close (TO_SOCKET (respipe [1])); |
|
|
664 | |
|
|
665 | #ifdef _WIN32 |
|
|
666 | if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
|
|
667 | #else |
|
|
668 | if (pipe (respipe)) |
|
|
669 | #endif |
|
|
670 | croak ("unable to initialize result pipe"); |
|
|
671 | |
|
|
672 | if (old_readfd >= 0) |
120 | { |
673 | { |
121 | fd_set rfd; |
674 | if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
122 | FD_ZERO(&rfd); |
675 | croak ("unable to initialize result pipe(2)"); |
123 | FD_SET(respipe [0], &rfd); |
|
|
124 | |
676 | |
125 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
677 | respipe_close (respipe [0]); |
|
|
678 | respipe [0] = old_readfd; |
126 | } |
679 | } |
127 | } |
|
|
128 | |
680 | |
129 | static int |
681 | #ifdef _WIN32 |
130 | poll_cb () |
682 | int arg = 1; |
|
|
683 | if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
|
|
684 | || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
|
|
685 | #else |
|
|
686 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
|
|
687 | || fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
688 | #endif |
|
|
689 | croak ("unable to initialize result pipe(3)"); |
|
|
690 | |
|
|
691 | respipe_osf [0] = TO_SOCKET (respipe [0]); |
|
|
692 | respipe_osf [1] = TO_SOCKET (respipe [1]); |
|
|
693 | } |
|
|
694 | |
|
|
695 | X_THREAD_PROC (aio_proc); |
|
|
696 | |
|
|
697 | static void start_thread (void) |
|
|
698 | { |
|
|
699 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
700 | |
|
|
701 | if (!wrk) |
|
|
702 | croak ("unable to allocate worker thread data"); |
|
|
703 | |
|
|
704 | X_LOCK (wrklock); |
|
|
705 | |
|
|
706 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
|
|
707 | { |
|
|
708 | wrk->prev = &wrk_first; |
|
|
709 | wrk->next = wrk_first.next; |
|
|
710 | wrk_first.next->prev = wrk; |
|
|
711 | wrk_first.next = wrk; |
|
|
712 | ++started; |
|
|
713 | } |
|
|
714 | else |
|
|
715 | free (wrk); |
|
|
716 | |
|
|
717 | X_UNLOCK (wrklock); |
|
|
718 | } |
|
|
719 | |
|
|
720 | static void maybe_start_thread (void) |
|
|
721 | { |
|
|
722 | if (get_nthreads () >= wanted) |
|
|
723 | return; |
|
|
724 | |
|
|
725 | /* todo: maybe use idle here, but might be less exact */ |
|
|
726 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
727 | return; |
|
|
728 | |
|
|
729 | start_thread (); |
|
|
730 | } |
|
|
731 | |
|
|
732 | static void req_send (aio_req req) |
|
|
733 | { |
|
|
734 | block_sig (); |
|
|
735 | |
|
|
736 | ++nreqs; |
|
|
737 | |
|
|
738 | X_LOCK (reqlock); |
|
|
739 | ++nready; |
|
|
740 | reqq_push (&req_queue, req); |
|
|
741 | X_COND_SIGNAL (reqwait); |
|
|
742 | X_UNLOCK (reqlock); |
|
|
743 | |
|
|
744 | unblock_sig (); |
|
|
745 | |
|
|
746 | maybe_start_thread (); |
|
|
747 | } |
|
|
748 | |
|
|
749 | static void end_thread (void) |
|
|
750 | { |
|
|
751 | aio_req req; |
|
|
752 | |
|
|
753 | Newz (0, req, 1, aio_cb); |
|
|
754 | |
|
|
755 | req->type = REQ_QUIT; |
|
|
756 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
757 | |
|
|
758 | X_LOCK (reqlock); |
|
|
759 | reqq_push (&req_queue, req); |
|
|
760 | X_COND_SIGNAL (reqwait); |
|
|
761 | X_UNLOCK (reqlock); |
|
|
762 | |
|
|
763 | X_LOCK (wrklock); |
|
|
764 | --started; |
|
|
765 | X_UNLOCK (wrklock); |
|
|
766 | } |
|
|
767 | |
|
|
768 | static void set_max_idle (int nthreads) |
|
|
769 | { |
|
|
770 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
771 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
772 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
773 | } |
|
|
774 | |
|
|
775 | static void min_parallel (int nthreads) |
|
|
776 | { |
|
|
777 | if (wanted < nthreads) |
|
|
778 | wanted = nthreads; |
|
|
779 | } |
|
|
780 | |
|
|
781 | static void max_parallel (int nthreads) |
|
|
782 | { |
|
|
783 | if (wanted > nthreads) |
|
|
784 | wanted = nthreads; |
|
|
785 | |
|
|
786 | while (started > wanted) |
|
|
787 | end_thread (); |
|
|
788 | } |
|
|
789 | |
|
|
790 | static void poll_wait (void) |
|
|
791 | { |
|
|
792 | fd_set rfd; |
|
|
793 | |
|
|
794 | while (nreqs) |
|
|
795 | { |
|
|
796 | int size; |
|
|
797 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
798 | size = res_queue.size; |
|
|
799 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
800 | |
|
|
801 | if (size) |
|
|
802 | return; |
|
|
803 | |
|
|
804 | maybe_start_thread (); |
|
|
805 | |
|
|
806 | FD_ZERO (&rfd); |
|
|
807 | FD_SET (respipe [0], &rfd); |
|
|
808 | |
|
|
809 | PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
810 | } |
|
|
811 | } |
|
|
812 | |
|
|
813 | static int poll_cb (void) |
131 | { |
814 | { |
132 | dSP; |
815 | dSP; |
133 | int count = 0; |
816 | int count = 0; |
|
|
817 | int maxreqs = max_poll_reqs; |
134 | int do_croak = 0; |
818 | int do_croak = 0; |
|
|
819 | struct timeval tv_start, tv_now; |
135 | aio_req req; |
820 | aio_req req; |
|
|
821 | |
|
|
822 | if (max_poll_time) |
|
|
823 | gettimeofday (&tv_start, 0); |
|
|
824 | |
|
|
825 | block_sig (); |
136 | |
826 | |
137 | for (;;) |
827 | for (;;) |
138 | { |
828 | { |
139 | pthread_mutex_lock (&reslock); |
829 | for (;;) |
140 | req = ress; |
|
|
141 | |
|
|
142 | if (req) |
|
|
143 | { |
830 | { |
144 | ress = req->next; |
831 | maybe_start_thread (); |
145 | |
832 | |
|
|
833 | X_LOCK (reslock); |
|
|
834 | req = reqq_shift (&res_queue); |
|
|
835 | |
146 | if (!ress) |
836 | if (req) |
147 | { |
837 | { |
|
|
838 | --npending; |
|
|
839 | |
|
|
840 | if (!res_queue.size) |
|
|
841 | { |
148 | /* read any signals sent by the worker threads */ |
842 | /* read any signals sent by the worker threads */ |
149 | char buf [32]; |
843 | char buf [4]; |
150 | while (read (respipe [0], buf, 32) == 32) |
844 | while (respipe_read (respipe [0], buf, 4) == 4) |
|
|
845 | ; |
151 | ; |
846 | } |
152 | |
|
|
153 | rese = 0; |
|
|
154 | } |
847 | } |
155 | } |
|
|
156 | |
848 | |
157 | pthread_mutex_unlock (&reslock); |
849 | X_UNLOCK (reslock); |
158 | |
850 | |
159 | if (!req) |
851 | if (!req) |
160 | break; |
852 | break; |
161 | |
853 | |
162 | nreqs--; |
854 | --nreqs; |
163 | |
855 | |
164 | if (req->type == REQ_QUIT) |
|
|
165 | started--; |
|
|
166 | else |
|
|
167 | { |
|
|
168 | int errorno = errno; |
|
|
169 | errno = req->errorno; |
|
|
170 | |
|
|
171 | if (req->type == REQ_READ) |
856 | if (req->type == REQ_GROUP && req->size) |
172 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
173 | |
|
|
174 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
175 | SvREADONLY_off (req->data); |
|
|
176 | |
|
|
177 | if (req->statdata) |
|
|
178 | { |
857 | { |
179 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
858 | req->int1 = 1; /* mark request as delayed */ |
180 | PL_laststatval = req->result; |
859 | continue; |
181 | PL_statcache = *(req->statdata); |
|
|
182 | } |
|
|
183 | |
|
|
184 | ENTER; |
|
|
185 | PUSHMARK (SP); |
|
|
186 | |
|
|
187 | if (req->type == REQ_READDIR) |
|
|
188 | { |
|
|
189 | SV *rv = &PL_sv_undef; |
|
|
190 | |
|
|
191 | if (req->result >= 0) |
|
|
192 | { |
|
|
193 | char *buf = req->data2ptr; |
|
|
194 | AV *av = newAV (); |
|
|
195 | |
|
|
196 | while (req->result) |
|
|
197 | { |
|
|
198 | SV *sv = newSVpv (buf, 0); |
|
|
199 | |
|
|
200 | av_push (av, sv); |
|
|
201 | buf += SvCUR (sv) + 1; |
|
|
202 | req->result--; |
|
|
203 | } |
|
|
204 | |
|
|
205 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
206 | } |
|
|
207 | |
|
|
208 | XPUSHs (rv); |
|
|
209 | } |
860 | } |
210 | else |
861 | else |
211 | { |
862 | { |
212 | XPUSHs (sv_2mortal (newSViv (req->result))); |
863 | if (!req_invoke (req)) |
213 | |
|
|
214 | if (req->type == REQ_OPEN) |
|
|
215 | { |
864 | { |
216 | /* convert fd to fh */ |
|
|
217 | SV *fh; |
|
|
218 | |
|
|
219 | PUTBACK; |
|
|
220 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
221 | SPAGAIN; |
|
|
222 | |
|
|
223 | fh = SvREFCNT_inc (POPs); |
|
|
224 | |
|
|
225 | PUSHMARK (SP); |
|
|
226 | XPUSHs (sv_2mortal (fh)); |
|
|
227 | } |
|
|
228 | } |
|
|
229 | |
|
|
230 | if (SvOK (req->callback)) |
|
|
231 | { |
|
|
232 | PUTBACK; |
|
|
233 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
234 | SPAGAIN; |
|
|
235 | |
|
|
236 | if (SvTRUE (ERRSV)) |
|
|
237 | { |
|
|
238 | free_req (req); |
865 | req_destroy (req); |
|
|
866 | unblock_sig (); |
239 | croak (0); |
867 | croak (0); |
240 | } |
868 | } |
|
|
869 | |
|
|
870 | count++; |
241 | } |
871 | } |
242 | |
872 | |
243 | LEAVE; |
873 | req_destroy (req); |
244 | |
874 | |
245 | errno = errorno; |
875 | if (maxreqs && !--maxreqs) |
246 | count++; |
876 | break; |
|
|
877 | |
|
|
878 | if (max_poll_time) |
|
|
879 | { |
|
|
880 | gettimeofday (&tv_now, 0); |
|
|
881 | |
|
|
882 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
883 | break; |
|
|
884 | } |
247 | } |
885 | } |
248 | |
886 | |
249 | free_req (req); |
887 | if (nreqs <= max_outstanding) |
|
|
888 | break; |
|
|
889 | |
|
|
890 | poll_wait (); |
|
|
891 | |
|
|
892 | ++maxreqs; |
250 | } |
893 | } |
251 | |
894 | |
|
|
895 | unblock_sig (); |
252 | return count; |
896 | return count; |
253 | } |
|
|
254 | |
|
|
255 | static void *aio_proc(void *arg); |
|
|
256 | |
|
|
257 | static void |
|
|
258 | start_thread (void) |
|
|
259 | { |
|
|
260 | sigset_t fullsigset, oldsigset; |
|
|
261 | pthread_t tid; |
|
|
262 | pthread_attr_t attr; |
|
|
263 | |
|
|
264 | pthread_attr_init (&attr); |
|
|
265 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
266 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
267 | |
|
|
268 | sigfillset (&fullsigset); |
|
|
269 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
270 | |
|
|
271 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
272 | started++; |
|
|
273 | |
|
|
274 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
275 | } |
|
|
276 | |
|
|
277 | static void |
|
|
278 | send_req (aio_req req) |
|
|
279 | { |
|
|
280 | while (started < wanted && nreqs >= started) |
|
|
281 | start_thread (); |
|
|
282 | |
|
|
283 | nreqs++; |
|
|
284 | |
|
|
285 | pthread_mutex_lock (&reqlock); |
|
|
286 | |
|
|
287 | req->next = 0; |
|
|
288 | |
|
|
289 | if (reqe) |
|
|
290 | { |
|
|
291 | reqe->next = req; |
|
|
292 | reqe = req; |
|
|
293 | } |
|
|
294 | else |
|
|
295 | reqe = reqs = req; |
|
|
296 | |
|
|
297 | pthread_cond_signal (&reqwait); |
|
|
298 | pthread_mutex_unlock (&reqlock); |
|
|
299 | |
|
|
300 | if (nreqs > max_outstanding) |
|
|
301 | for (;;) |
|
|
302 | { |
|
|
303 | poll_cb (); |
|
|
304 | |
|
|
305 | if (nreqs <= max_outstanding) |
|
|
306 | break; |
|
|
307 | |
|
|
308 | poll_wait (); |
|
|
309 | } |
|
|
310 | } |
|
|
311 | |
|
|
312 | static void |
|
|
313 | end_thread (void) |
|
|
314 | { |
|
|
315 | aio_req req; |
|
|
316 | Newz (0, req, 1, aio_cb); |
|
|
317 | req->type = REQ_QUIT; |
|
|
318 | |
|
|
319 | send_req (req); |
|
|
320 | } |
|
|
321 | |
|
|
322 | static void min_parallel (int nthreads) |
|
|
323 | { |
|
|
324 | if (wanted < nthreads) |
|
|
325 | wanted = nthreads; |
|
|
326 | } |
|
|
327 | |
|
|
328 | static void max_parallel (int nthreads) |
|
|
329 | { |
|
|
330 | int cur = started; |
|
|
331 | |
|
|
332 | if (wanted > nthreads) |
|
|
333 | wanted = nthreads; |
|
|
334 | |
|
|
335 | while (cur > wanted) |
|
|
336 | { |
|
|
337 | end_thread (); |
|
|
338 | cur--; |
|
|
339 | } |
|
|
340 | |
|
|
341 | while (started > wanted) |
|
|
342 | { |
|
|
343 | poll_wait (); |
|
|
344 | poll_cb (); |
|
|
345 | } |
|
|
346 | } |
|
|
347 | |
|
|
348 | static void create_pipe () |
|
|
349 | { |
|
|
350 | if (pipe (respipe)) |
|
|
351 | croak ("unable to initialize result pipe"); |
|
|
352 | |
|
|
353 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
354 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
355 | |
|
|
356 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
357 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
358 | } |
897 | } |
359 | |
898 | |
360 | /*****************************************************************************/ |
899 | /*****************************************************************************/ |
361 | /* work around various missing functions */ |
900 | /* work around various missing functions */ |
362 | |
901 | |
… | |
… | |
367 | /* |
906 | /* |
368 | * make our pread/pwrite safe against themselves, but not against |
907 | * make our pread/pwrite safe against themselves, but not against |
369 | * normal read/write by using a mutex. slows down execution a lot, |
908 | * normal read/write by using a mutex. slows down execution a lot, |
370 | * but that's your problem, not mine. |
909 | * but that's your problem, not mine. |
371 | */ |
910 | */ |
372 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
911 | static mutex_t preadwritelock = X_MUTEX_INIT; |
373 | |
912 | |
374 | static ssize_t |
913 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
375 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
376 | { |
914 | { |
377 | ssize_t res; |
915 | ssize_t res; |
378 | off_t ooffset; |
916 | off_t ooffset; |
379 | |
917 | |
380 | pthread_mutex_lock (&preadwritelock); |
918 | X_LOCK (preadwritelock); |
381 | ooffset = lseek (fd, 0, SEEK_CUR); |
919 | ooffset = lseek (fd, 0, SEEK_CUR); |
382 | lseek (fd, offset, SEEK_SET); |
920 | lseek (fd, offset, SEEK_SET); |
383 | res = read (fd, buf, count); |
921 | res = read (fd, buf, count); |
384 | lseek (fd, ooffset, SEEK_SET); |
922 | lseek (fd, ooffset, SEEK_SET); |
385 | pthread_mutex_unlock (&preadwritelock); |
923 | X_UNLOCK (preadwritelock); |
386 | |
924 | |
387 | return res; |
925 | return res; |
388 | } |
926 | } |
389 | |
927 | |
390 | static ssize_t |
|
|
391 | pwrite (int fd, void *buf, size_t count, off_t offset) |
928 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
392 | { |
929 | { |
393 | ssize_t res; |
930 | ssize_t res; |
394 | off_t ooffset; |
931 | off_t ooffset; |
395 | |
932 | |
396 | pthread_mutex_lock (&preadwritelock); |
933 | X_LOCK (preadwritelock); |
397 | ooffset = lseek (fd, 0, SEEK_CUR); |
934 | ooffset = lseek (fd, 0, SEEK_CUR); |
398 | lseek (fd, offset, SEEK_SET); |
935 | lseek (fd, offset, SEEK_SET); |
399 | res = write (fd, buf, count); |
936 | res = write (fd, buf, count); |
400 | lseek (fd, offset, SEEK_SET); |
937 | lseek (fd, offset, SEEK_SET); |
401 | pthread_mutex_unlock (&preadwritelock); |
938 | X_UNLOCK (preadwritelock); |
402 | |
939 | |
403 | return res; |
940 | return res; |
404 | } |
941 | } |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | #ifndef HAVE_FUTIMES |
|
|
945 | |
|
|
946 | # define utimes(path,times) aio_utimes (path, times) |
|
|
947 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
948 | |
|
|
949 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
950 | { |
|
|
951 | if (times) |
|
|
952 | { |
|
|
953 | struct utimbuf buf; |
|
|
954 | |
|
|
955 | buf.actime = times[0].tv_sec; |
|
|
956 | buf.modtime = times[1].tv_sec; |
|
|
957 | |
|
|
958 | return utime (filename, &buf); |
|
|
959 | } |
|
|
960 | else |
|
|
961 | return utime (filename, 0); |
|
|
962 | } |
|
|
963 | |
|
|
964 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
965 | { |
|
|
966 | errno = ENOSYS; |
|
|
967 | return -1; |
|
|
968 | } |
|
|
969 | |
405 | #endif |
970 | #endif |
406 | |
971 | |
407 | #if !HAVE_FDATASYNC |
972 | #if !HAVE_FDATASYNC |
408 | # define fdatasync fsync |
973 | # define fdatasync fsync |
409 | #endif |
974 | #endif |
410 | |
975 | |
411 | #if !HAVE_READAHEAD |
976 | #if !HAVE_READAHEAD |
412 | # define readahead aio_readahead |
977 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
413 | |
978 | |
414 | static ssize_t |
979 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
415 | readahead (int fd, off_t offset, size_t count) |
|
|
416 | { |
980 | { |
417 | char readahead_buf[4096]; |
981 | size_t todo = count; |
|
|
982 | dBUF; |
418 | |
983 | |
419 | while (count > 0) |
984 | while (todo > 0) |
420 | { |
985 | { |
421 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
986 | size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE; |
422 | |
987 | |
423 | pread (fd, readahead_buf, len, offset); |
988 | pread (fd, aio_buf, len, offset); |
424 | offset += len; |
989 | offset += len; |
425 | count -= len; |
990 | todo -= len; |
426 | } |
991 | } |
427 | |
992 | |
428 | errno = 0; |
993 | errno = 0; |
|
|
994 | return count; |
429 | } |
995 | } |
|
|
996 | |
430 | #endif |
997 | #endif |
431 | |
998 | |
432 | #if !HAVE_READDIR_R |
999 | #if !HAVE_READDIR_R |
433 | # define readdir_r aio_readdir_r |
1000 | # define readdir_r aio_readdir_r |
434 | |
1001 | |
435 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
1002 | static mutex_t readdirlock = X_MUTEX_INIT; |
436 | |
1003 | |
437 | static int |
1004 | static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) |
438 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
439 | { |
1005 | { |
440 | struct dirent *e; |
1006 | X_DIRENT *e; |
441 | int errorno; |
1007 | int errorno; |
442 | |
1008 | |
443 | pthread_mutex_lock (&readdirlock); |
1009 | X_LOCK (readdirlock); |
444 | |
1010 | |
445 | e = readdir (dirp); |
1011 | e = readdir (dirp); |
446 | errorno = errno; |
1012 | errorno = errno; |
447 | |
1013 | |
448 | if (e) |
1014 | if (e) |
… | |
… | |
451 | strcpy (ent->d_name, e->d_name); |
1017 | strcpy (ent->d_name, e->d_name); |
452 | } |
1018 | } |
453 | else |
1019 | else |
454 | *res = 0; |
1020 | *res = 0; |
455 | |
1021 | |
456 | pthread_mutex_unlock (&readdirlock); |
1022 | X_UNLOCK (readdirlock); |
457 | |
1023 | |
458 | errno = errorno; |
1024 | errno = errorno; |
459 | return e ? 0 : -1; |
1025 | return e ? 0 : -1; |
460 | } |
1026 | } |
461 | #endif |
1027 | #endif |
462 | |
1028 | |
463 | /* sendfile always needs emulation */ |
1029 | /* sendfile always needs emulation */ |
464 | static ssize_t |
|
|
465 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
1030 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
466 | { |
1031 | { |
467 | ssize_t res; |
1032 | ssize_t res; |
468 | |
1033 | |
469 | if (!count) |
1034 | if (!count) |
470 | return 0; |
1035 | return 0; |
… | |
… | |
481 | { |
1046 | { |
482 | off_t sbytes; |
1047 | off_t sbytes; |
483 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
1048 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
484 | |
1049 | |
485 | if (res < 0 && sbytes) |
1050 | if (res < 0 && sbytes) |
486 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
1051 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
487 | res = sbytes; |
1052 | res = sbytes; |
488 | } |
1053 | } |
489 | |
1054 | |
490 | # elif __hpux |
1055 | # elif __hpux |
491 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
1056 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
519 | #endif |
1084 | #endif |
520 | ) |
1085 | ) |
521 | ) |
1086 | ) |
522 | { |
1087 | { |
523 | /* emulate sendfile. this is a major pain in the ass */ |
1088 | /* emulate sendfile. this is a major pain in the ass */ |
524 | char buf[4096]; |
1089 | dBUF; |
|
|
1090 | |
525 | res = 0; |
1091 | res = 0; |
526 | |
1092 | |
527 | while (count) |
1093 | while (count) |
528 | { |
1094 | { |
529 | ssize_t cnt; |
1095 | ssize_t cnt; |
530 | |
1096 | |
531 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
1097 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
532 | |
1098 | |
533 | if (cnt <= 0) |
1099 | if (cnt <= 0) |
534 | { |
1100 | { |
535 | if (cnt && !res) res = -1; |
1101 | if (cnt && !res) res = -1; |
536 | break; |
1102 | break; |
537 | } |
1103 | } |
538 | |
1104 | |
539 | cnt = write (ofd, buf, cnt); |
1105 | cnt = write (ofd, aio_buf, cnt); |
540 | |
1106 | |
541 | if (cnt <= 0) |
1107 | if (cnt <= 0) |
542 | { |
1108 | { |
543 | if (cnt && !res) res = -1; |
1109 | if (cnt && !res) res = -1; |
544 | break; |
1110 | break; |
… | |
… | |
552 | |
1118 | |
553 | return res; |
1119 | return res; |
554 | } |
1120 | } |
555 | |
1121 | |
556 | /* read a full directory */ |
1122 | /* read a full directory */ |
557 | static int |
1123 | static void scandir_ (aio_req req, worker *self) |
558 | scandir_ (const char *path, void **namesp) |
|
|
559 | { |
1124 | { |
560 | DIR *dirp = opendir (path); |
1125 | DIR *dirp; |
561 | union |
1126 | union |
562 | { |
1127 | { |
563 | struct dirent d; |
1128 | X_DIRENT d; |
564 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
1129 | char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1]; |
565 | } u; |
1130 | } *u; |
566 | struct dirent *entp; |
1131 | X_DIRENT *entp; |
567 | char *name, *names; |
1132 | char *name, *names; |
568 | int memlen = 4096; |
1133 | int memlen = 4096; |
569 | int memofs = 0; |
1134 | int memofs = 0; |
570 | int res = 0; |
1135 | int res = 0; |
571 | int errorno; |
|
|
572 | |
1136 | |
573 | if (!dirp) |
1137 | X_LOCK (wrklock); |
574 | return -1; |
1138 | self->dirp = dirp = opendir (req->ptr1); |
575 | |
1139 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1140 | req->flags |= FLAG_PTR2_FREE; |
576 | names = malloc (memlen); |
1141 | req->ptr2 = names = malloc (memlen); |
|
|
1142 | X_UNLOCK (wrklock); |
|
|
1143 | |
|
|
1144 | if (dirp && u && names) |
|
|
1145 | for (;;) |
|
|
1146 | { |
|
|
1147 | errno = 0; |
|
|
1148 | readdir_r (dirp, &u->d, &entp); |
|
|
1149 | |
|
|
1150 | if (!entp) |
|
|
1151 | break; |
|
|
1152 | |
|
|
1153 | name = entp->d_name; |
|
|
1154 | |
|
|
1155 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1156 | { |
|
|
1157 | int len = strlen (name) + 1; |
|
|
1158 | |
|
|
1159 | res++; |
|
|
1160 | |
|
|
1161 | while (memofs + len > memlen) |
|
|
1162 | { |
|
|
1163 | memlen *= 2; |
|
|
1164 | X_LOCK (wrklock); |
|
|
1165 | req->ptr2 = names = realloc (names, memlen); |
|
|
1166 | X_UNLOCK (wrklock); |
|
|
1167 | |
|
|
1168 | if (!names) |
|
|
1169 | break; |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | memcpy (names + memofs, name, len); |
|
|
1173 | memofs += len; |
|
|
1174 | } |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | if (errno) |
|
|
1178 | res = -1; |
|
|
1179 | |
|
|
1180 | req->result = res; |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | /*****************************************************************************/ |
|
|
1184 | |
|
|
1185 | X_THREAD_PROC (aio_proc) |
|
|
1186 | { |
|
|
1187 | {//D |
|
|
1188 | aio_req req; |
|
|
1189 | struct timespec ts; |
|
|
1190 | worker *self = (worker *)thr_arg; |
|
|
1191 | |
|
|
1192 | /* try to distribute timeouts somewhat randomly */ |
|
|
1193 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
577 | |
1194 | |
578 | for (;;) |
1195 | for (;;) |
579 | { |
1196 | { |
580 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1197 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
581 | |
1198 | |
582 | if (!entp) |
1199 | X_LOCK (reqlock); |
583 | break; |
|
|
584 | |
|
|
585 | name = entp->d_name; |
|
|
586 | |
|
|
587 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
588 | { |
|
|
589 | int len = strlen (name) + 1; |
|
|
590 | |
|
|
591 | res++; |
|
|
592 | |
|
|
593 | while (memofs + len > memlen) |
|
|
594 | { |
|
|
595 | memlen *= 2; |
|
|
596 | names = realloc (names, memlen); |
|
|
597 | if (!names) |
|
|
598 | break; |
|
|
599 | } |
|
|
600 | |
|
|
601 | memcpy (names + memofs, name, len); |
|
|
602 | memofs += len; |
|
|
603 | } |
|
|
604 | } |
|
|
605 | |
|
|
606 | errorno = errno; |
|
|
607 | closedir (dirp); |
|
|
608 | |
|
|
609 | if (errorno) |
|
|
610 | { |
|
|
611 | free (names); |
|
|
612 | errno = errorno; |
|
|
613 | res = -1; |
|
|
614 | } |
|
|
615 | |
|
|
616 | *namesp = (void *)names; |
|
|
617 | return res; |
|
|
618 | } |
|
|
619 | |
|
|
620 | /*****************************************************************************/ |
|
|
621 | |
|
|
622 | static void * |
|
|
623 | aio_proc (void *thr_arg) |
|
|
624 | { |
|
|
625 | aio_req req; |
|
|
626 | int type; |
|
|
627 | |
|
|
628 | do |
|
|
629 | { |
|
|
630 | pthread_mutex_lock (&reqlock); |
|
|
631 | |
1200 | |
632 | for (;;) |
1201 | for (;;) |
633 | { |
1202 | { |
634 | req = reqs; |
1203 | self->req = req = reqq_shift (&req_queue); |
635 | |
|
|
636 | if (reqs) |
|
|
637 | { |
|
|
638 | reqs = reqs->next; |
|
|
639 | if (!reqs) reqe = 0; |
|
|
640 | } |
|
|
641 | |
1204 | |
642 | if (req) |
1205 | if (req) |
643 | break; |
1206 | break; |
644 | |
1207 | |
645 | pthread_cond_wait (&reqwait, &reqlock); |
1208 | ++idle; |
|
|
1209 | |
|
|
1210 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1211 | == ETIMEDOUT) |
|
|
1212 | { |
|
|
1213 | if (idle > max_idle) |
|
|
1214 | { |
|
|
1215 | --idle; |
|
|
1216 | X_UNLOCK (reqlock); |
|
|
1217 | X_LOCK (wrklock); |
|
|
1218 | --started; |
|
|
1219 | X_UNLOCK (wrklock); |
|
|
1220 | goto quit; |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1224 | X_COND_WAIT (reqwait, reqlock); |
|
|
1225 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | --idle; |
646 | } |
1229 | } |
647 | |
1230 | |
648 | pthread_mutex_unlock (&reqlock); |
1231 | --nready; |
|
|
1232 | |
|
|
1233 | X_UNLOCK (reqlock); |
649 | |
1234 | |
650 | errno = 0; /* strictly unnecessary */ |
1235 | errno = 0; /* strictly unnecessary */ |
651 | |
1236 | |
652 | type = req->type; |
1237 | if (!(req->flags & FLAG_CANCELLED)) |
653 | |
|
|
654 | switch (type) |
1238 | switch (req->type) |
|
|
1239 | { |
|
|
1240 | case REQ_READ: req->result = req->offs >= 0 |
|
|
1241 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1242 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1243 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1244 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1245 | : write (req->int1, req->ptr1, req->size); break; |
|
|
1246 | |
|
|
1247 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1248 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1249 | |
|
|
1250 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1251 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1252 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1253 | |
|
|
1254 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1255 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1256 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1257 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1258 | case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1259 | case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1260 | |
|
|
1261 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1262 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1263 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1264 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1265 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1266 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1267 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1268 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1269 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1270 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1271 | |
|
|
1272 | case REQ_SYNC: req->result = 0; sync (); break; |
|
|
1273 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1274 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1275 | |
|
|
1276 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1277 | |
|
|
1278 | case REQ_BUSY: |
|
|
1279 | #ifdef _WIN32 |
|
|
1280 | Sleep (req->nv1 * 1000.); |
|
|
1281 | #else |
|
|
1282 | { |
|
|
1283 | struct timeval tv; |
|
|
1284 | |
|
|
1285 | tv.tv_sec = req->nv1; |
|
|
1286 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1287 | |
|
|
1288 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1289 | } |
|
|
1290 | #endif |
|
|
1291 | break; |
|
|
1292 | |
|
|
1293 | case REQ_UTIME: |
|
|
1294 | case REQ_FUTIME: |
|
|
1295 | { |
|
|
1296 | struct timeval tv[2]; |
|
|
1297 | struct timeval *times; |
|
|
1298 | |
|
|
1299 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1300 | { |
|
|
1301 | tv[0].tv_sec = req->nv1; |
|
|
1302 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1303 | tv[1].tv_sec = req->nv2; |
|
|
1304 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1305 | |
|
|
1306 | times = tv; |
|
|
1307 | } |
|
|
1308 | else |
|
|
1309 | times = 0; |
|
|
1310 | |
|
|
1311 | |
|
|
1312 | req->result = req->type == REQ_FUTIME |
|
|
1313 | ? futimes (req->int1, times) |
|
|
1314 | : utimes (req->ptr1, times); |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | case REQ_GROUP: |
|
|
1318 | case REQ_NOP: |
|
|
1319 | break; |
|
|
1320 | |
|
|
1321 | case REQ_QUIT: |
|
|
1322 | goto quit; |
|
|
1323 | |
|
|
1324 | default: |
|
|
1325 | req->result = -1; |
|
|
1326 | break; |
|
|
1327 | } |
|
|
1328 | |
|
|
1329 | req->errorno = errno; |
|
|
1330 | |
|
|
1331 | X_LOCK (reslock); |
|
|
1332 | |
|
|
1333 | ++npending; |
|
|
1334 | |
|
|
1335 | if (!reqq_push (&res_queue, req)) |
655 | { |
1336 | { |
656 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1337 | /* write a dummy byte to the pipe so fh becomes ready */ |
657 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1338 | respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
658 | |
1339 | |
659 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1340 | /* optionally signal the main thread asynchronously */ |
660 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1341 | if (main_sig) |
661 | |
1342 | pthread_kill (main_tid, main_sig); |
662 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
|
|
663 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
664 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
665 | |
|
|
666 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
667 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
668 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
669 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
670 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
671 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
672 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
673 | |
|
|
674 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
675 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
676 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
|
|
677 | |
|
|
678 | case REQ_QUIT: |
|
|
679 | break; |
|
|
680 | |
|
|
681 | default: |
|
|
682 | req->result = ENOSYS; |
|
|
683 | break; |
|
|
684 | } |
1343 | } |
685 | |
1344 | |
686 | req->errorno = errno; |
1345 | self->req = 0; |
|
|
1346 | worker_clear (self); |
687 | |
1347 | |
688 | pthread_mutex_lock (&reslock); |
1348 | X_UNLOCK (reslock); |
689 | |
|
|
690 | req->next = 0; |
|
|
691 | |
|
|
692 | if (rese) |
|
|
693 | { |
|
|
694 | rese->next = req; |
|
|
695 | rese = req; |
|
|
696 | } |
|
|
697 | else |
|
|
698 | { |
|
|
699 | rese = ress = req; |
|
|
700 | |
|
|
701 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
702 | write (respipe [1], &respipe, 1); |
|
|
703 | } |
|
|
704 | |
|
|
705 | pthread_mutex_unlock (&reslock); |
|
|
706 | } |
1349 | } |
707 | while (type != REQ_QUIT); |
1350 | |
|
|
1351 | quit: |
|
|
1352 | X_LOCK (wrklock); |
|
|
1353 | worker_free (self); |
|
|
1354 | X_UNLOCK (wrklock); |
708 | |
1355 | |
709 | return 0; |
1356 | return 0; |
|
|
1357 | }//D |
710 | } |
1358 | } |
711 | |
1359 | |
712 | /*****************************************************************************/ |
1360 | /*****************************************************************************/ |
713 | |
1361 | |
714 | static void atfork_prepare (void) |
1362 | static void atfork_prepare (void) |
715 | { |
1363 | { |
716 | pthread_mutex_lock (&reqlock); |
1364 | X_LOCK (wrklock); |
717 | pthread_mutex_lock (&reslock); |
1365 | X_LOCK (reqlock); |
|
|
1366 | X_LOCK (reslock); |
718 | #if !HAVE_PREADWRITE |
1367 | #if !HAVE_PREADWRITE |
719 | pthread_mutex_lock (&preadwritelock); |
1368 | X_LOCK (preadwritelock); |
720 | #endif |
1369 | #endif |
721 | #if !HAVE_READDIR_R |
1370 | #if !HAVE_READDIR_R |
722 | pthread_mutex_lock (&readdirlock); |
1371 | X_LOCK (readdirlock); |
723 | #endif |
1372 | #endif |
724 | } |
1373 | } |
725 | |
1374 | |
726 | static void atfork_parent (void) |
1375 | static void atfork_parent (void) |
727 | { |
1376 | { |
728 | #if !HAVE_READDIR_R |
1377 | #if !HAVE_READDIR_R |
729 | pthread_mutex_unlock (&readdirlock); |
1378 | X_UNLOCK (readdirlock); |
730 | #endif |
1379 | #endif |
731 | #if !HAVE_PREADWRITE |
1380 | #if !HAVE_PREADWRITE |
732 | pthread_mutex_unlock (&preadwritelock); |
1381 | X_UNLOCK (preadwritelock); |
733 | #endif |
1382 | #endif |
734 | pthread_mutex_unlock (&reslock); |
1383 | X_UNLOCK (reslock); |
735 | pthread_mutex_unlock (&reqlock); |
1384 | X_UNLOCK (reqlock); |
|
|
1385 | X_UNLOCK (wrklock); |
736 | } |
1386 | } |
737 | |
1387 | |
738 | static void atfork_child (void) |
1388 | static void atfork_child (void) |
739 | { |
1389 | { |
740 | aio_req prv; |
1390 | aio_req prv; |
741 | |
1391 | |
742 | started = 0; |
1392 | while (prv = reqq_shift (&req_queue)) |
|
|
1393 | req_destroy (prv); |
743 | |
1394 | |
744 | while (reqs) |
1395 | while (prv = reqq_shift (&res_queue)) |
|
|
1396 | req_destroy (prv); |
|
|
1397 | |
|
|
1398 | while (wrk_first.next != &wrk_first) |
745 | { |
1399 | { |
746 | prv = reqs; |
1400 | worker *wrk = wrk_first.next; |
747 | reqs = prv->next; |
1401 | |
748 | free_req (prv); |
1402 | if (wrk->req) |
|
|
1403 | req_destroy (wrk->req); |
|
|
1404 | |
|
|
1405 | worker_clear (wrk); |
|
|
1406 | worker_free (wrk); |
749 | } |
1407 | } |
750 | |
1408 | |
751 | reqs = reqe = 0; |
1409 | started = 0; |
752 | |
1410 | idle = 0; |
753 | while (ress) |
1411 | nreqs = 0; |
754 | { |
1412 | nready = 0; |
755 | prv = ress; |
1413 | npending = 0; |
756 | ress = prv->next; |
|
|
757 | free_req (prv); |
|
|
758 | } |
|
|
759 | |
|
|
760 | ress = rese = 0; |
|
|
761 | |
1414 | |
762 | close (respipe [0]); |
|
|
763 | close (respipe [1]); |
|
|
764 | create_pipe (); |
1415 | create_respipe (); |
765 | |
1416 | |
766 | atfork_parent (); |
1417 | atfork_parent (); |
767 | } |
1418 | } |
768 | |
1419 | |
769 | #define dREQ \ |
1420 | #define dREQ \ |
770 | aio_req req; \ |
1421 | aio_req req; \ |
|
|
1422 | int req_pri = next_pri; \ |
|
|
1423 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
771 | \ |
1424 | \ |
772 | if (SvOK (callback) && !SvROK (callback)) \ |
1425 | if (SvOK (callback) && !SvROK (callback)) \ |
773 | croak ("clalback must be undef or of reference type"); \ |
1426 | croak ("callback must be undef or of reference type"); \ |
774 | \ |
1427 | \ |
775 | Newz (0, req, 1, aio_cb); \ |
1428 | Newz (0, req, 1, aio_cb); \ |
776 | if (!req) \ |
1429 | if (!req) \ |
777 | croak ("out of memory during aio_req allocation"); \ |
1430 | croak ("out of memory during aio_req allocation"); \ |
778 | \ |
1431 | \ |
779 | req->callback = newSVsv (callback); |
1432 | req->callback = newSVsv (callback); \ |
|
|
1433 | req->pri = req_pri |
|
|
1434 | |
|
|
1435 | #define REQ_SEND \ |
|
|
1436 | req_send (req); \ |
|
|
1437 | \ |
|
|
1438 | if (GIMME_V != G_VOID) \ |
|
|
1439 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
780 | |
1440 | |
781 | MODULE = IO::AIO PACKAGE = IO::AIO |
1441 | MODULE = IO::AIO PACKAGE = IO::AIO |
782 | |
1442 | |
783 | PROTOTYPES: ENABLE |
1443 | PROTOTYPES: ENABLE |
784 | |
1444 | |
785 | BOOT: |
1445 | BOOT: |
786 | { |
1446 | { |
787 | create_pipe (); |
1447 | stash = gv_stashpv ("IO::AIO", 1); |
|
|
1448 | |
|
|
1449 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1450 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1451 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1452 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1453 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1454 | #ifdef _WIN32 |
|
|
1455 | X_MUTEX_CHECK (wrklock); |
|
|
1456 | X_MUTEX_CHECK (reslock); |
|
|
1457 | X_MUTEX_CHECK (reqlock); |
|
|
1458 | X_MUTEX_CHECK (reqwait); |
|
|
1459 | X_MUTEX_CHECK (preadwritelock); |
|
|
1460 | X_MUTEX_CHECK (readdirlock); |
|
|
1461 | |
|
|
1462 | X_COND_CHECK (reqwait); |
|
|
1463 | #else |
|
|
1464 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1465 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
|
|
1466 | #endif |
|
|
1467 | |
|
|
1468 | create_respipe (); |
|
|
1469 | |
788 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1470 | X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); |
789 | } |
1471 | } |
790 | |
1472 | |
791 | void |
1473 | void |
792 | min_parallel (nthreads) |
1474 | max_poll_reqs (int nreqs) |
793 | int nthreads |
|
|
794 | PROTOTYPE: $ |
1475 | PROTOTYPE: $ |
|
|
1476 | CODE: |
|
|
1477 | max_poll_reqs = nreqs; |
795 | |
1478 | |
796 | void |
1479 | void |
797 | max_parallel (nthreads) |
1480 | max_poll_time (double nseconds) |
798 | int nthreads |
|
|
799 | PROTOTYPE: $ |
1481 | PROTOTYPE: $ |
|
|
1482 | CODE: |
|
|
1483 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1484 | |
|
|
1485 | void |
|
|
1486 | min_parallel (int nthreads) |
|
|
1487 | PROTOTYPE: $ |
|
|
1488 | |
|
|
1489 | void |
|
|
1490 | max_parallel (int nthreads) |
|
|
1491 | PROTOTYPE: $ |
|
|
1492 | |
|
|
1493 | void |
|
|
1494 | max_idle (int nthreads) |
|
|
1495 | PROTOTYPE: $ |
|
|
1496 | CODE: |
|
|
1497 | set_max_idle (nthreads); |
800 | |
1498 | |
801 | int |
1499 | int |
802 | max_outstanding (nreqs) |
1500 | max_outstanding (int maxreqs) |
803 | int nreqs |
1501 | PROTOTYPE: $ |
804 | PROTOTYPE: $ |
|
|
805 | CODE: |
1502 | CODE: |
806 | RETVAL = max_outstanding; |
1503 | RETVAL = max_outstanding; |
807 | max_outstanding = nreqs; |
1504 | max_outstanding = maxreqs; |
|
|
1505 | OUTPUT: |
|
|
1506 | RETVAL |
808 | |
1507 | |
809 | void |
1508 | void |
810 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1509 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
811 | SV * pathname |
|
|
812 | int flags |
|
|
813 | int mode |
|
|
814 | SV * callback |
|
|
815 | PROTOTYPE: $$$;$ |
1510 | PROTOTYPE: $$$;$ |
816 | CODE: |
1511 | PPCODE: |
817 | { |
1512 | { |
818 | dREQ; |
1513 | dREQ; |
819 | |
1514 | |
820 | req->type = REQ_OPEN; |
1515 | req->type = REQ_OPEN; |
821 | req->data = newSVsv (pathname); |
1516 | req->sv1 = newSVsv (pathname); |
822 | req->dataptr = SvPVbyte_nolen (req->data); |
1517 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
823 | req->fd = flags; |
1518 | req->int1 = flags; |
824 | req->mode = mode; |
1519 | req->mode = mode; |
825 | |
1520 | |
826 | send_req (req); |
1521 | REQ_SEND; |
827 | } |
1522 | } |
828 | |
1523 | |
829 | void |
1524 | void |
830 | aio_close (fh,callback=&PL_sv_undef) |
1525 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
831 | SV * fh |
|
|
832 | SV * callback |
|
|
833 | PROTOTYPE: $;$ |
1526 | PROTOTYPE: $;$ |
834 | ALIAS: |
1527 | ALIAS: |
835 | aio_close = REQ_CLOSE |
|
|
836 | aio_fsync = REQ_FSYNC |
1528 | aio_fsync = REQ_FSYNC |
837 | aio_fdatasync = REQ_FDATASYNC |
1529 | aio_fdatasync = REQ_FDATASYNC |
838 | CODE: |
1530 | PPCODE: |
839 | { |
1531 | { |
840 | dREQ; |
1532 | dREQ; |
841 | |
1533 | |
842 | req->type = ix; |
1534 | req->type = ix; |
843 | req->fh = newSVsv (fh); |
1535 | req->sv1 = newSVsv (fh); |
844 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1536 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
845 | |
1537 | |
846 | send_req (req); |
1538 | REQ_SEND (req); |
847 | } |
1539 | } |
848 | |
1540 | |
|
|
1541 | int |
|
|
1542 | _dup (int fd) |
|
|
1543 | PROTOTYPE: $ |
|
|
1544 | CODE: |
|
|
1545 | RETVAL = dup (fd); |
|
|
1546 | OUTPUT: |
|
|
1547 | RETVAL |
|
|
1548 | |
849 | void |
1549 | void |
|
|
1550 | _aio_close (int fd, SV *callback=&PL_sv_undef) |
|
|
1551 | PROTOTYPE: $;$ |
|
|
1552 | PPCODE: |
|
|
1553 | { |
|
|
1554 | dREQ; |
|
|
1555 | |
|
|
1556 | req->type = REQ_CLOSE; |
|
|
1557 | req->int1 = fd; |
|
|
1558 | |
|
|
1559 | REQ_SEND (req); |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void |
850 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1563 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
851 | SV * fh |
|
|
852 | UV offset |
|
|
853 | UV length |
|
|
854 | SV * data |
|
|
855 | UV dataoffset |
|
|
856 | SV * callback |
|
|
857 | ALIAS: |
1564 | ALIAS: |
858 | aio_read = REQ_READ |
1565 | aio_read = REQ_READ |
859 | aio_write = REQ_WRITE |
1566 | aio_write = REQ_WRITE |
860 | PROTOTYPE: $$$$$;$ |
1567 | PROTOTYPE: $$$$$;$ |
861 | CODE: |
1568 | PPCODE: |
862 | { |
1569 | { |
863 | aio_req req; |
|
|
864 | STRLEN svlen; |
1570 | STRLEN svlen; |
865 | char *svptr = SvPVbyte (data, svlen); |
1571 | char *svptr = SvPVbyte (data, svlen); |
|
|
1572 | UV len = SvUV (length); |
866 | |
1573 | |
867 | SvUPGRADE (data, SVt_PV); |
1574 | SvUPGRADE (data, SVt_PV); |
868 | SvPOK_on (data); |
1575 | SvPOK_on (data); |
869 | |
1576 | |
870 | if (dataoffset < 0) |
1577 | if (dataoffset < 0) |
871 | dataoffset += svlen; |
1578 | dataoffset += svlen; |
872 | |
1579 | |
873 | if (dataoffset < 0 || dataoffset > svlen) |
1580 | if (dataoffset < 0 || dataoffset > svlen) |
874 | croak ("data offset outside of string"); |
1581 | croak ("dataoffset outside of data scalar"); |
875 | |
1582 | |
876 | if (ix == REQ_WRITE) |
1583 | if (ix == REQ_WRITE) |
877 | { |
1584 | { |
878 | /* write: check length and adjust. */ |
1585 | /* write: check length and adjust. */ |
879 | if (length < 0 || length + dataoffset > svlen) |
1586 | if (!SvOK (length) || len + dataoffset > svlen) |
880 | length = svlen - dataoffset; |
1587 | len = svlen - dataoffset; |
881 | } |
1588 | } |
882 | else |
1589 | else |
883 | { |
1590 | { |
884 | /* read: grow scalar as necessary */ |
1591 | /* read: grow scalar as necessary */ |
885 | svptr = SvGROW (data, length + dataoffset); |
1592 | svptr = SvGROW (data, len + dataoffset + 1); |
886 | } |
1593 | } |
887 | |
1594 | |
888 | if (length < 0) |
1595 | if (len < 0) |
889 | croak ("length must not be negative"); |
1596 | croak ("length must not be negative"); |
890 | |
1597 | |
891 | { |
1598 | { |
892 | dREQ; |
1599 | dREQ; |
893 | |
1600 | |
894 | req->type = ix; |
1601 | req->type = ix; |
895 | req->fh = newSVsv (fh); |
1602 | req->sv1 = newSVsv (fh); |
896 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1603 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
897 | : IoOFP (sv_2io (fh))); |
1604 | : IoOFP (sv_2io (fh))); |
|
|
1605 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
898 | req->offset = offset; |
1606 | req->size = len; |
899 | req->length = length; |
|
|
900 | req->data = SvREFCNT_inc (data); |
1607 | req->sv2 = SvREFCNT_inc (data); |
901 | req->dataptr = (char *)svptr + dataoffset; |
1608 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1609 | req->stroffset = dataoffset; |
902 | |
1610 | |
903 | if (!SvREADONLY (data)) |
1611 | if (!SvREADONLY (data)) |
904 | { |
1612 | { |
905 | SvREADONLY_on (data); |
1613 | SvREADONLY_on (data); |
906 | req->data2ptr = (void *)data; |
1614 | req->flags |= FLAG_SV2_RO_OFF; |
907 | } |
1615 | } |
908 | |
1616 | |
909 | send_req (req); |
1617 | REQ_SEND; |
910 | } |
1618 | } |
911 | } |
1619 | } |
912 | |
1620 | |
913 | void |
1621 | void |
|
|
1622 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1623 | PROTOTYPE: $$;$ |
|
|
1624 | PPCODE: |
|
|
1625 | { |
|
|
1626 | SV *data; |
|
|
1627 | dREQ; |
|
|
1628 | |
|
|
1629 | data = newSV (NAME_MAX); |
|
|
1630 | SvPOK_on (data); |
|
|
1631 | |
|
|
1632 | req->type = REQ_READLINK; |
|
|
1633 | req->sv1 = newSVsv (path); |
|
|
1634 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1635 | req->sv2 = data; |
|
|
1636 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1637 | |
|
|
1638 | REQ_SEND; |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | void |
914 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1642 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
915 | SV * out_fh |
|
|
916 | SV * in_fh |
|
|
917 | UV in_offset |
|
|
918 | UV length |
|
|
919 | SV * callback |
|
|
920 | PROTOTYPE: $$$$;$ |
1643 | PROTOTYPE: $$$$;$ |
921 | CODE: |
1644 | PPCODE: |
922 | { |
1645 | { |
923 | dREQ; |
1646 | dREQ; |
924 | |
1647 | |
925 | req->type = REQ_SENDFILE; |
1648 | req->type = REQ_SENDFILE; |
926 | req->fh = newSVsv (out_fh); |
1649 | req->sv1 = newSVsv (out_fh); |
927 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1650 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
928 | req->fh2 = newSVsv (in_fh); |
1651 | req->sv2 = newSVsv (in_fh); |
929 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1652 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
930 | req->offset = in_offset; |
1653 | req->offs = SvVAL64 (in_offset); |
931 | req->length = length; |
1654 | req->size = length; |
932 | |
1655 | |
933 | send_req (req); |
1656 | REQ_SEND; |
934 | } |
1657 | } |
935 | |
1658 | |
936 | void |
1659 | void |
937 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
1660 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
938 | SV * fh |
|
|
939 | UV offset |
|
|
940 | IV length |
|
|
941 | SV * callback |
|
|
942 | PROTOTYPE: $$$;$ |
1661 | PROTOTYPE: $$$;$ |
943 | CODE: |
1662 | PPCODE: |
944 | { |
1663 | { |
945 | dREQ; |
1664 | dREQ; |
946 | |
1665 | |
947 | req->type = REQ_READAHEAD; |
1666 | req->type = REQ_READAHEAD; |
948 | req->fh = newSVsv (fh); |
1667 | req->sv1 = newSVsv (fh); |
949 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1668 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
950 | req->offset = offset; |
1669 | req->offs = SvVAL64 (offset); |
951 | req->length = length; |
1670 | req->size = length; |
952 | |
1671 | |
953 | send_req (req); |
1672 | REQ_SEND; |
954 | } |
1673 | } |
955 | |
1674 | |
956 | void |
1675 | void |
957 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1676 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
958 | SV * fh_or_path |
|
|
959 | SV * callback |
|
|
960 | ALIAS: |
1677 | ALIAS: |
961 | aio_stat = REQ_STAT |
1678 | aio_stat = REQ_STAT |
962 | aio_lstat = REQ_LSTAT |
1679 | aio_lstat = REQ_LSTAT |
963 | CODE: |
1680 | PPCODE: |
964 | { |
1681 | { |
965 | dREQ; |
1682 | dREQ; |
966 | |
1683 | |
967 | New (0, req->statdata, 1, Stat_t); |
1684 | req->ptr2 = malloc (sizeof (Stat_t)); |
968 | if (!req->statdata) |
1685 | if (!req->ptr2) |
969 | { |
1686 | { |
970 | free_req (req); |
1687 | req_destroy (req); |
971 | croak ("out of memory during aio_req->statdata allocation"); |
1688 | croak ("out of memory during aio_stat statdata allocation"); |
972 | } |
1689 | } |
|
|
1690 | |
|
|
1691 | req->flags |= FLAG_PTR2_FREE; |
|
|
1692 | req->sv1 = newSVsv (fh_or_path); |
973 | |
1693 | |
974 | if (SvPOK (fh_or_path)) |
1694 | if (SvPOK (fh_or_path)) |
975 | { |
1695 | { |
976 | req->type = ix; |
1696 | req->type = ix; |
977 | req->data = newSVsv (fh_or_path); |
|
|
978 | req->dataptr = SvPVbyte_nolen (req->data); |
1697 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
979 | } |
1698 | } |
980 | else |
1699 | else |
981 | { |
1700 | { |
982 | req->type = REQ_FSTAT; |
1701 | req->type = REQ_FSTAT; |
983 | req->fh = newSVsv (fh_or_path); |
|
|
984 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1702 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
985 | } |
1703 | } |
986 | |
1704 | |
987 | send_req (req); |
1705 | REQ_SEND; |
988 | } |
1706 | } |
989 | |
1707 | |
990 | void |
1708 | void |
|
|
1709 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1710 | PPCODE: |
|
|
1711 | { |
|
|
1712 | dREQ; |
|
|
1713 | |
|
|
1714 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1715 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1716 | req->sv1 = newSVsv (fh_or_path); |
|
|
1717 | |
|
|
1718 | if (SvPOK (fh_or_path)) |
|
|
1719 | { |
|
|
1720 | req->type = REQ_UTIME; |
|
|
1721 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1722 | } |
|
|
1723 | else |
|
|
1724 | { |
|
|
1725 | req->type = REQ_FUTIME; |
|
|
1726 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | REQ_SEND; |
|
|
1730 | } |
|
|
1731 | |
|
|
1732 | void |
|
|
1733 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1734 | PPCODE: |
|
|
1735 | { |
|
|
1736 | dREQ; |
|
|
1737 | |
|
|
1738 | req->sv1 = newSVsv (fh_or_path); |
|
|
1739 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1740 | |
|
|
1741 | if (SvPOK (fh_or_path)) |
|
|
1742 | { |
|
|
1743 | req->type = REQ_TRUNCATE; |
|
|
1744 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1745 | } |
|
|
1746 | else |
|
|
1747 | { |
|
|
1748 | req->type = REQ_FTRUNCATE; |
|
|
1749 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | REQ_SEND; |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | void |
|
|
1756 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1757 | PPCODE: |
|
|
1758 | { |
|
|
1759 | dREQ; |
|
|
1760 | |
|
|
1761 | req->mode = mode; |
|
|
1762 | req->sv1 = newSVsv (fh_or_path); |
|
|
1763 | |
|
|
1764 | if (SvPOK (fh_or_path)) |
|
|
1765 | { |
|
|
1766 | req->type = REQ_CHMOD; |
|
|
1767 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1768 | } |
|
|
1769 | else |
|
|
1770 | { |
|
|
1771 | req->type = REQ_FCHMOD; |
|
|
1772 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1773 | } |
|
|
1774 | |
|
|
1775 | REQ_SEND; |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | void |
|
|
1779 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1780 | PPCODE: |
|
|
1781 | { |
|
|
1782 | dREQ; |
|
|
1783 | |
|
|
1784 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1785 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1786 | req->sv1 = newSVsv (fh_or_path); |
|
|
1787 | |
|
|
1788 | if (SvPOK (fh_or_path)) |
|
|
1789 | { |
|
|
1790 | req->type = REQ_CHOWN; |
|
|
1791 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1792 | } |
|
|
1793 | else |
|
|
1794 | { |
|
|
1795 | req->type = REQ_FCHOWN; |
|
|
1796 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | REQ_SEND; |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | void |
991 | aio_unlink (pathname,callback=&PL_sv_undef) |
1803 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
992 | SV * pathname |
|
|
993 | SV * callback |
|
|
994 | ALIAS: |
1804 | ALIAS: |
995 | aio_unlink = REQ_UNLINK |
1805 | aio_unlink = REQ_UNLINK |
996 | aio_rmdir = REQ_RMDIR |
1806 | aio_rmdir = REQ_RMDIR |
997 | aio_readdir = REQ_READDIR |
1807 | aio_readdir = REQ_READDIR |
998 | CODE: |
1808 | PPCODE: |
999 | { |
1809 | { |
1000 | dREQ; |
1810 | dREQ; |
1001 | |
1811 | |
1002 | req->type = ix; |
1812 | req->type = ix; |
1003 | req->data = newSVsv (pathname); |
1813 | req->sv1 = newSVsv (pathname); |
1004 | req->dataptr = SvPVbyte_nolen (req->data); |
1814 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1815 | |
|
|
1816 | REQ_SEND; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | void |
|
|
1820 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1821 | PPCODE: |
|
|
1822 | { |
|
|
1823 | dREQ; |
1005 | |
1824 | |
1006 | send_req (req); |
1825 | req->type = REQ_MKDIR; |
1007 | } |
1826 | req->sv1 = newSVsv (pathname); |
|
|
1827 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1828 | req->mode = mode; |
1008 | |
1829 | |
|
|
1830 | REQ_SEND; |
|
|
1831 | } |
|
|
1832 | |
1009 | void |
1833 | void |
1010 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1834 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
1011 | SV * oldpath |
|
|
1012 | SV * newpath |
|
|
1013 | SV * callback |
|
|
1014 | ALIAS: |
1835 | ALIAS: |
1015 | aio_link = REQ_LINK |
1836 | aio_link = REQ_LINK |
1016 | aio_symlink = REQ_SYMLINK |
1837 | aio_symlink = REQ_SYMLINK |
1017 | aio_rename = REQ_RENAME |
1838 | aio_rename = REQ_RENAME |
1018 | CODE: |
1839 | PPCODE: |
1019 | { |
1840 | { |
1020 | dREQ; |
1841 | dREQ; |
1021 | |
1842 | |
1022 | req->type = ix; |
1843 | req->type = ix; |
1023 | req->fh = newSVsv (oldpath); |
1844 | req->sv2 = newSVsv (oldpath); |
1024 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1845 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
1025 | req->data = newSVsv (newpath); |
1846 | req->sv1 = newSVsv (newpath); |
1026 | req->dataptr = SvPVbyte_nolen (req->data); |
1847 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1027 | |
1848 | |
1028 | send_req (req); |
1849 | REQ_SEND; |
1029 | } |
1850 | } |
|
|
1851 | |
|
|
1852 | void |
|
|
1853 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1854 | PPCODE: |
|
|
1855 | { |
|
|
1856 | dREQ; |
|
|
1857 | |
|
|
1858 | req->type = REQ_MKNOD; |
|
|
1859 | req->sv1 = newSVsv (pathname); |
|
|
1860 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1861 | req->mode = (mode_t)mode; |
|
|
1862 | req->offs = dev; |
|
|
1863 | |
|
|
1864 | REQ_SEND; |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | void |
|
|
1868 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1869 | PPCODE: |
|
|
1870 | { |
|
|
1871 | dREQ; |
|
|
1872 | |
|
|
1873 | req->type = REQ_BUSY; |
|
|
1874 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1875 | |
|
|
1876 | REQ_SEND; |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | void |
|
|
1880 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1881 | PROTOTYPE: ;$ |
|
|
1882 | PPCODE: |
|
|
1883 | { |
|
|
1884 | dREQ; |
|
|
1885 | |
|
|
1886 | req->type = REQ_GROUP; |
|
|
1887 | |
|
|
1888 | req_send (req); |
|
|
1889 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | void |
|
|
1893 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1894 | ALIAS: |
|
|
1895 | aio_nop = REQ_NOP |
|
|
1896 | aio_sync = REQ_SYNC |
|
|
1897 | PPCODE: |
|
|
1898 | { |
|
|
1899 | dREQ; |
|
|
1900 | |
|
|
1901 | req->type = ix; |
|
|
1902 | |
|
|
1903 | REQ_SEND; |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | int |
|
|
1907 | aioreq_pri (int pri = 0) |
|
|
1908 | PROTOTYPE: ;$ |
|
|
1909 | CODE: |
|
|
1910 | RETVAL = next_pri - PRI_BIAS; |
|
|
1911 | if (items > 0) |
|
|
1912 | { |
|
|
1913 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1914 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1915 | next_pri = pri + PRI_BIAS; |
|
|
1916 | } |
|
|
1917 | OUTPUT: |
|
|
1918 | RETVAL |
|
|
1919 | |
|
|
1920 | void |
|
|
1921 | aioreq_nice (int nice = 0) |
|
|
1922 | CODE: |
|
|
1923 | nice = next_pri - nice; |
|
|
1924 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1925 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1926 | next_pri = nice + PRI_BIAS; |
1030 | |
1927 | |
1031 | void |
1928 | void |
1032 | flush () |
1929 | flush () |
1033 | PROTOTYPE: |
1930 | PROTOTYPE: |
1034 | CODE: |
1931 | CODE: |
… | |
… | |
1036 | { |
1933 | { |
1037 | poll_wait (); |
1934 | poll_wait (); |
1038 | poll_cb (); |
1935 | poll_cb (); |
1039 | } |
1936 | } |
1040 | |
1937 | |
1041 | void |
1938 | int |
1042 | poll() |
1939 | poll() |
1043 | PROTOTYPE: |
1940 | PROTOTYPE: |
1044 | CODE: |
1941 | CODE: |
1045 | if (nreqs) |
|
|
1046 | { |
|
|
1047 | poll_wait (); |
1942 | poll_wait (); |
1048 | poll_cb (); |
1943 | RETVAL = poll_cb (); |
1049 | } |
1944 | OUTPUT: |
|
|
1945 | RETVAL |
1050 | |
1946 | |
1051 | int |
1947 | int |
1052 | poll_fileno() |
1948 | poll_fileno() |
1053 | PROTOTYPE: |
1949 | PROTOTYPE: |
1054 | CODE: |
1950 | CODE: |
… | |
… | |
1066 | |
1962 | |
1067 | void |
1963 | void |
1068 | poll_wait() |
1964 | poll_wait() |
1069 | PROTOTYPE: |
1965 | PROTOTYPE: |
1070 | CODE: |
1966 | CODE: |
1071 | if (nreqs) |
|
|
1072 | poll_wait (); |
1967 | poll_wait (); |
|
|
1968 | |
|
|
1969 | void |
|
|
1970 | setsig (int signum = SIGIO) |
|
|
1971 | PROTOTYPE: ;$ |
|
|
1972 | CODE: |
|
|
1973 | { |
|
|
1974 | if (block_sig_level) |
|
|
1975 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1976 | |
|
|
1977 | X_LOCK (reslock); |
|
|
1978 | main_tid = pthread_self (); |
|
|
1979 | main_sig = signum; |
|
|
1980 | X_UNLOCK (reslock); |
|
|
1981 | |
|
|
1982 | if (main_sig && npending) |
|
|
1983 | pthread_kill (main_tid, main_sig); |
|
|
1984 | } |
|
|
1985 | |
|
|
1986 | void |
|
|
1987 | aio_block (SV *cb) |
|
|
1988 | PROTOTYPE: & |
|
|
1989 | PPCODE: |
|
|
1990 | { |
|
|
1991 | int count; |
|
|
1992 | |
|
|
1993 | block_sig (); |
|
|
1994 | PUSHMARK (SP); |
|
|
1995 | PUTBACK; |
|
|
1996 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1997 | unblock_sig (); |
|
|
1998 | |
|
|
1999 | if (SvTRUE (ERRSV)) |
|
|
2000 | croak (0); |
|
|
2001 | |
|
|
2002 | XSRETURN (count); |
|
|
2003 | } |
1073 | |
2004 | |
1074 | int |
2005 | int |
1075 | nreqs() |
2006 | nreqs() |
1076 | PROTOTYPE: |
2007 | PROTOTYPE: |
1077 | CODE: |
2008 | CODE: |
1078 | RETVAL = nreqs; |
2009 | RETVAL = nreqs; |
1079 | OUTPUT: |
2010 | OUTPUT: |
1080 | RETVAL |
2011 | RETVAL |
1081 | |
2012 | |
|
|
2013 | int |
|
|
2014 | nready() |
|
|
2015 | PROTOTYPE: |
|
|
2016 | CODE: |
|
|
2017 | RETVAL = get_nready (); |
|
|
2018 | OUTPUT: |
|
|
2019 | RETVAL |
|
|
2020 | |
|
|
2021 | int |
|
|
2022 | npending() |
|
|
2023 | PROTOTYPE: |
|
|
2024 | CODE: |
|
|
2025 | RETVAL = get_npending (); |
|
|
2026 | OUTPUT: |
|
|
2027 | RETVAL |
|
|
2028 | |
|
|
2029 | int |
|
|
2030 | nthreads() |
|
|
2031 | PROTOTYPE: |
|
|
2032 | CODE: |
|
|
2033 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
|
|
2034 | RETVAL = started; |
|
|
2035 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
|
|
2036 | OUTPUT: |
|
|
2037 | RETVAL |
|
|
2038 | |
|
|
2039 | PROTOTYPES: DISABLE |
|
|
2040 | |
|
|
2041 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
2042 | |
|
|
2043 | void |
|
|
2044 | cancel (aio_req_ornot req) |
|
|
2045 | CODE: |
|
|
2046 | req_cancel (req); |
|
|
2047 | |
|
|
2048 | void |
|
|
2049 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
2050 | CODE: |
|
|
2051 | SvREFCNT_dec (req->callback); |
|
|
2052 | req->callback = newSVsv (callback); |
|
|
2053 | |
|
|
2054 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
2055 | |
|
|
2056 | void |
|
|
2057 | add (aio_req grp, ...) |
|
|
2058 | PPCODE: |
|
|
2059 | { |
|
|
2060 | int i; |
|
|
2061 | aio_req req; |
|
|
2062 | |
|
|
2063 | if (main_sig && !block_sig_level) |
|
|
2064 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
2065 | |
|
|
2066 | if (grp->int1 == 2) |
|
|
2067 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
2068 | |
|
|
2069 | for (i = 1; i < items; ++i ) |
|
|
2070 | { |
|
|
2071 | if (GIMME_V != G_VOID) |
|
|
2072 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
2073 | |
|
|
2074 | req = SvAIO_REQ (ST (i)); |
|
|
2075 | |
|
|
2076 | if (req) |
|
|
2077 | { |
|
|
2078 | ++grp->size; |
|
|
2079 | req->grp = grp; |
|
|
2080 | |
|
|
2081 | req->grp_prev = 0; |
|
|
2082 | req->grp_next = grp->grp_first; |
|
|
2083 | |
|
|
2084 | if (grp->grp_first) |
|
|
2085 | grp->grp_first->grp_prev = req; |
|
|
2086 | |
|
|
2087 | grp->grp_first = req; |
|
|
2088 | } |
|
|
2089 | } |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | void |
|
|
2093 | cancel_subs (aio_req_ornot req) |
|
|
2094 | CODE: |
|
|
2095 | req_cancel_subs (req); |
|
|
2096 | |
|
|
2097 | void |
|
|
2098 | result (aio_req grp, ...) |
|
|
2099 | CODE: |
|
|
2100 | { |
|
|
2101 | int i; |
|
|
2102 | AV *av; |
|
|
2103 | |
|
|
2104 | grp->errorno = errno; |
|
|
2105 | |
|
|
2106 | av = newAV (); |
|
|
2107 | |
|
|
2108 | for (i = 1; i < items; ++i ) |
|
|
2109 | av_push (av, newSVsv (ST (i))); |
|
|
2110 | |
|
|
2111 | SvREFCNT_dec (grp->sv1); |
|
|
2112 | grp->sv1 = (SV *)av; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | void |
|
|
2116 | errno (aio_req grp, int errorno = errno) |
|
|
2117 | CODE: |
|
|
2118 | grp->errorno = errorno; |
|
|
2119 | |
|
|
2120 | void |
|
|
2121 | limit (aio_req grp, int limit) |
|
|
2122 | CODE: |
|
|
2123 | grp->int2 = limit; |
|
|
2124 | aio_grp_feed (grp); |
|
|
2125 | |
|
|
2126 | void |
|
|
2127 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
2128 | CODE: |
|
|
2129 | { |
|
|
2130 | SvREFCNT_dec (grp->sv2); |
|
|
2131 | grp->sv2 = newSVsv (callback); |
|
|
2132 | |
|
|
2133 | if (grp->int2 <= 0) |
|
|
2134 | grp->int2 = 2; |
|
|
2135 | |
|
|
2136 | aio_grp_feed (grp); |
|
|
2137 | } |
|
|
2138 | |