1 | #define _REENTRANT 1 |
1 | #include "xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
9 | #include <stddef.h> |
9 | |
10 | #include <stdlib.h> |
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11 | #include <errno.h> |
10 | #include <sys/types.h> |
12 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
12 | |
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13 | #include <unistd.h> |
14 | #include <limits.h> |
14 | #include <fcntl.h> |
15 | #include <fcntl.h> |
15 | #include <signal.h> |
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16 | #include <sched.h> |
16 | #include <sched.h> |
17 | |
17 | |
18 | #include <pthread.h> |
18 | #ifdef _WIN32 |
19 | |
19 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | # define SIGIO 0 |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef Direntry_t X_DIRENT; |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | #undef malloc |
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23 | #undef free |
23 | |
24 | |
24 | #if __ia64 |
25 | // perl overrides all those nice win32 functions |
25 | # define STACKSIZE 65536 |
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 | |
26 | #else |
57 | #else |
27 | # define STACKSIZE 4096 |
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 | |
28 | #endif |
67 | #endif |
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68 | |
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69 | #if HAVE_SENDFILE |
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70 | # if __linux |
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71 | # include <sys/sendfile.h> |
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72 | # elif __freebsd |
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73 | # include <sys/socket.h> |
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74 | # include <sys/uio.h> |
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75 | # elif __hpux |
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76 | # include <sys/socket.h> |
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77 | # elif __solaris /* not yet */ |
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78 | # include <sys/sendfile.h> |
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79 | # else |
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80 | # error sendfile support requested but not available |
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81 | # endif |
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82 | #endif |
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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 | |
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87 | /* used for struct dirent, AIX doesn't provide it */ |
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88 | #ifndef NAME_MAX |
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89 | # define NAME_MAX 4096 |
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90 | #endif |
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91 | |
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92 | /* buffer size for various temporary buffers */ |
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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 |
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98 | #else |
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99 | # define SvVAL64 SvNV |
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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 */ |
29 | |
113 | |
30 | enum { |
114 | enum { |
31 | REQ_QUIT, |
115 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
116 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
117 | REQ_READ, REQ_WRITE, |
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118 | REQ_READAHEAD, REQ_SENDFILE, |
34 | 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, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
124 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
125 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
37 | REQ_SYMLINK, |
126 | REQ_MKNOD, REQ_READDIR, |
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127 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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128 | REQ_GROUP, REQ_NOP, |
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129 | REQ_BUSY, |
38 | }; |
130 | }; |
39 | |
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 | |
40 | typedef struct aio_cb { |
135 | typedef struct aio_cb |
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136 | { |
41 | struct aio_cb *volatile next; |
137 | struct aio_cb *volatile next; |
42 | |
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; |
43 | int type; |
148 | int type; |
44 | |
149 | int int1, int2, int3; |
45 | int fd; |
150 | int errorno; |
46 | off_t offset; |
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47 | size_t length; |
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48 | ssize_t result; |
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49 | mode_t mode; /* open */ |
151 | mode_t mode; /* open */ |
50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
152 | |
55 | 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; |
56 | } aio_cb; |
158 | } aio_cb; |
57 | |
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 | |
58 | typedef aio_cb *aio_req; |
166 | typedef aio_cb *aio_req; |
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167 | typedef aio_cb *aio_req_ornot; |
59 | |
168 | |
60 | static int started; |
169 | enum { |
61 | static volatile int nreqs; |
170 | PRI_MIN = -4, |
62 | static int max_outstanding = 1<<30; |
171 | PRI_MAX = 4, |
63 | static int respipe [2]; |
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64 | |
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 () |
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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 () |
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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 | |
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226 | static unsigned int started, idle, wanted; |
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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 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
273 | static mutex_t reslock = X_MUTEX_INIT; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
274 | static mutex_t reqlock = X_MUTEX_INIT; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
275 | static cond_t reqwait = X_COND_INIT; |
68 | |
276 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
277 | #if WORDACCESS_UNSAFE |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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71 | |
278 | |
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279 | static unsigned int get_nready () |
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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 () |
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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 () |
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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 (); |
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375 | static int req_invoke (aio_req req); |
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376 | static void req_destroy (aio_req req); |
72 | 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) |
73 | { |
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; |
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431 | break; |
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432 | } |
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433 | } |
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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 = gv; |
|
|
530 | } |
|
|
531 | |
|
|
532 | XPUSHs (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); |
|
|
587 | SPAGAIN; |
|
|
588 | |
|
|
589 | FREETMPS; |
|
|
590 | LEAVE; |
|
|
591 | } |
|
|
592 | |
74 | if (req->data) |
593 | if (req->grp) |
75 | SvREFCNT_dec (req->data); |
594 | { |
|
|
595 | aio_req grp = req->grp; |
76 | |
596 | |
|
|
597 | /* unlink request */ |
|
|
598 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
599 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
600 | |
|
|
601 | if (grp->grp_first == req) |
|
|
602 | grp->grp_first = req->grp_next; |
|
|
603 | |
|
|
604 | aio_grp_dec (grp); |
|
|
605 | } |
|
|
606 | |
|
|
607 | return !SvTRUE (ERRSV); |
|
|
608 | } |
|
|
609 | |
|
|
610 | static void req_destroy (aio_req req) |
|
|
611 | { |
77 | if (req->fh) |
612 | if (req->self) |
|
|
613 | { |
|
|
614 | sv_unmagic (req->self, PERL_MAGIC_ext); |
78 | SvREFCNT_dec (req->fh); |
615 | SvREFCNT_dec (req->self); |
|
|
616 | } |
79 | |
617 | |
80 | if (req->statdata) |
618 | SvREFCNT_dec (req->sv1); |
81 | Safefree (req->statdata); |
619 | SvREFCNT_dec (req->sv2); |
82 | |
|
|
83 | if (req->callback) |
|
|
84 | SvREFCNT_dec (req->callback); |
620 | SvREFCNT_dec (req->callback); |
|
|
621 | |
|
|
622 | if (req->flags & FLAG_PTR2_FREE) |
|
|
623 | free (req->ptr2); |
85 | |
624 | |
86 | Safefree (req); |
625 | Safefree (req); |
87 | } |
626 | } |
88 | |
627 | |
|
|
628 | static void req_cancel_subs (aio_req grp) |
|
|
629 | { |
|
|
630 | aio_req sub; |
|
|
631 | |
|
|
632 | if (grp->type != REQ_GROUP) |
|
|
633 | return; |
|
|
634 | |
|
|
635 | SvREFCNT_dec (grp->sv2); |
|
|
636 | grp->sv2 = 0; |
|
|
637 | |
|
|
638 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
639 | req_cancel (sub); |
|
|
640 | } |
|
|
641 | |
|
|
642 | static void req_cancel (aio_req req) |
|
|
643 | { |
|
|
644 | req->flags |= FLAG_CANCELLED; |
|
|
645 | |
|
|
646 | req_cancel_subs (req); |
|
|
647 | } |
|
|
648 | |
|
|
649 | #ifdef USE_SOCKETS_AS_HANDLES |
|
|
650 | # define TO_SOCKET(x) (win32_get_osfhandle (x)) |
|
|
651 | #else |
|
|
652 | # define TO_SOCKET(x) (x) |
|
|
653 | #endif |
|
|
654 | |
89 | static void |
655 | static void |
90 | poll_wait () |
656 | create_respipe () |
91 | { |
657 | { |
92 | if (nreqs && !ress) |
658 | int old_readfd = respipe [0]; |
|
|
659 | |
|
|
660 | if (respipe [1] >= 0) |
|
|
661 | respipe_close (TO_SOCKET (respipe [1])); |
|
|
662 | |
|
|
663 | #ifdef _WIN32 |
|
|
664 | if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
|
|
665 | #else |
|
|
666 | if (pipe (respipe)) |
|
|
667 | #endif |
|
|
668 | croak ("unable to initialize result pipe"); |
|
|
669 | |
|
|
670 | if (old_readfd >= 0) |
93 | { |
671 | { |
94 | fd_set rfd; |
672 | if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
95 | FD_ZERO(&rfd); |
673 | croak ("unable to initialize result pipe(2)"); |
96 | FD_SET(respipe [0], &rfd); |
|
|
97 | |
674 | |
98 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
675 | respipe_close (respipe [0]); |
|
|
676 | respipe [0] = old_readfd; |
99 | } |
677 | } |
100 | } |
|
|
101 | |
678 | |
102 | static int |
679 | #ifdef _WIN32 |
103 | poll_cb () |
680 | int arg = 1; |
|
|
681 | if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
|
|
682 | || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
|
|
683 | #else |
|
|
684 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
|
|
685 | || fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
686 | #endif |
|
|
687 | croak ("unable to initialize result pipe(3)"); |
|
|
688 | |
|
|
689 | respipe_osf [0] = TO_SOCKET (respipe [0]); |
|
|
690 | respipe_osf [1] = TO_SOCKET (respipe [1]); |
|
|
691 | } |
|
|
692 | |
|
|
693 | X_THREAD_PROC (aio_proc); |
|
|
694 | |
|
|
695 | static void start_thread (void) |
|
|
696 | { |
|
|
697 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
698 | |
|
|
699 | if (!wrk) |
|
|
700 | croak ("unable to allocate worker thread data"); |
|
|
701 | |
|
|
702 | X_LOCK (wrklock); |
|
|
703 | |
|
|
704 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
|
|
705 | { |
|
|
706 | wrk->prev = &wrk_first; |
|
|
707 | wrk->next = wrk_first.next; |
|
|
708 | wrk_first.next->prev = wrk; |
|
|
709 | wrk_first.next = wrk; |
|
|
710 | ++started; |
|
|
711 | } |
|
|
712 | else |
|
|
713 | free (wrk); |
|
|
714 | |
|
|
715 | X_UNLOCK (wrklock); |
|
|
716 | } |
|
|
717 | |
|
|
718 | static void maybe_start_thread () |
|
|
719 | { |
|
|
720 | if (get_nthreads () >= wanted) |
|
|
721 | return; |
|
|
722 | |
|
|
723 | /* todo: maybe use idle here, but might be less exact */ |
|
|
724 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
725 | return; |
|
|
726 | |
|
|
727 | start_thread (); |
|
|
728 | } |
|
|
729 | |
|
|
730 | static void req_send (aio_req req) |
|
|
731 | { |
|
|
732 | block_sig (); |
|
|
733 | |
|
|
734 | ++nreqs; |
|
|
735 | |
|
|
736 | X_LOCK (reqlock); |
|
|
737 | ++nready; |
|
|
738 | reqq_push (&req_queue, req); |
|
|
739 | X_COND_SIGNAL (reqwait); |
|
|
740 | X_UNLOCK (reqlock); |
|
|
741 | |
|
|
742 | unblock_sig (); |
|
|
743 | |
|
|
744 | maybe_start_thread (); |
|
|
745 | } |
|
|
746 | |
|
|
747 | static void end_thread (void) |
|
|
748 | { |
|
|
749 | aio_req req; |
|
|
750 | |
|
|
751 | Newz (0, req, 1, aio_cb); |
|
|
752 | |
|
|
753 | req->type = REQ_QUIT; |
|
|
754 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
755 | |
|
|
756 | X_LOCK (reqlock); |
|
|
757 | reqq_push (&req_queue, req); |
|
|
758 | X_COND_SIGNAL (reqwait); |
|
|
759 | X_UNLOCK (reqlock); |
|
|
760 | |
|
|
761 | X_LOCK (wrklock); |
|
|
762 | --started; |
|
|
763 | X_UNLOCK (wrklock); |
|
|
764 | } |
|
|
765 | |
|
|
766 | static void set_max_idle (int nthreads) |
|
|
767 | { |
|
|
768 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
769 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
770 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
771 | } |
|
|
772 | |
|
|
773 | static void min_parallel (int nthreads) |
|
|
774 | { |
|
|
775 | if (wanted < nthreads) |
|
|
776 | wanted = nthreads; |
|
|
777 | } |
|
|
778 | |
|
|
779 | static void max_parallel (int nthreads) |
|
|
780 | { |
|
|
781 | if (wanted > nthreads) |
|
|
782 | wanted = nthreads; |
|
|
783 | |
|
|
784 | while (started > wanted) |
|
|
785 | end_thread (); |
|
|
786 | } |
|
|
787 | |
|
|
788 | static void poll_wait () |
|
|
789 | { |
|
|
790 | fd_set rfd; |
|
|
791 | |
|
|
792 | while (nreqs) |
|
|
793 | { |
|
|
794 | int size; |
|
|
795 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
796 | size = res_queue.size; |
|
|
797 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
798 | |
|
|
799 | if (size) |
|
|
800 | return; |
|
|
801 | |
|
|
802 | maybe_start_thread (); |
|
|
803 | |
|
|
804 | FD_ZERO (&rfd); |
|
|
805 | FD_SET (respipe [0], &rfd); |
|
|
806 | |
|
|
807 | PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
808 | } |
|
|
809 | } |
|
|
810 | |
|
|
811 | static int poll_cb () |
104 | { |
812 | { |
105 | dSP; |
813 | dSP; |
106 | int count = 0; |
814 | int count = 0; |
|
|
815 | int maxreqs = max_poll_reqs; |
107 | int do_croak = 0; |
816 | int do_croak = 0; |
|
|
817 | struct timeval tv_start, tv_now; |
108 | aio_req req; |
818 | aio_req req; |
|
|
819 | |
|
|
820 | if (max_poll_time) |
|
|
821 | gettimeofday (&tv_start, 0); |
|
|
822 | |
|
|
823 | block_sig (); |
109 | |
824 | |
110 | for (;;) |
825 | for (;;) |
111 | { |
826 | { |
112 | pthread_mutex_lock (&reslock); |
827 | for (;;) |
113 | req = ress; |
|
|
114 | |
|
|
115 | if (req) |
|
|
116 | { |
828 | { |
117 | ress = req->next; |
829 | maybe_start_thread (); |
118 | |
830 | |
|
|
831 | X_LOCK (reslock); |
|
|
832 | req = reqq_shift (&res_queue); |
|
|
833 | |
119 | if (!ress) |
834 | if (req) |
120 | { |
835 | { |
121 | rese = 0; |
836 | --npending; |
122 | |
837 | |
|
|
838 | if (!res_queue.size) |
|
|
839 | { |
123 | /* read any signals sent by the worker threads */ |
840 | /* read any signals sent by the worker threads */ |
124 | char buf [32]; |
841 | char buf [4]; |
125 | while (read (respipe [0], buf, 32) == 32) |
842 | while (respipe_read (respipe [0], buf, 4) == 4) |
|
|
843 | ; |
126 | ; |
844 | } |
|
|
845 | } |
|
|
846 | |
|
|
847 | X_UNLOCK (reslock); |
|
|
848 | |
|
|
849 | if (!req) |
|
|
850 | break; |
|
|
851 | |
|
|
852 | --nreqs; |
|
|
853 | |
|
|
854 | if (req->type == REQ_GROUP && req->size) |
|
|
855 | { |
|
|
856 | req->int1 = 1; /* mark request as delayed */ |
|
|
857 | continue; |
|
|
858 | } |
|
|
859 | else |
|
|
860 | { |
|
|
861 | if (!req_invoke (req)) |
|
|
862 | { |
|
|
863 | req_destroy (req); |
|
|
864 | unblock_sig (); |
|
|
865 | croak (0); |
|
|
866 | } |
|
|
867 | |
|
|
868 | count++; |
|
|
869 | } |
|
|
870 | |
|
|
871 | req_destroy (req); |
|
|
872 | |
|
|
873 | if (maxreqs && !--maxreqs) |
|
|
874 | break; |
|
|
875 | |
|
|
876 | if (max_poll_time) |
|
|
877 | { |
|
|
878 | gettimeofday (&tv_now, 0); |
|
|
879 | |
|
|
880 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
881 | break; |
127 | } |
882 | } |
128 | } |
883 | } |
129 | |
884 | |
130 | pthread_mutex_unlock (&reslock); |
885 | if (nreqs <= max_outstanding) |
131 | |
|
|
132 | if (!req) |
|
|
133 | break; |
886 | break; |
134 | |
887 | |
135 | nreqs--; |
888 | poll_wait (); |
136 | |
889 | |
137 | if (req->type == REQ_QUIT) |
890 | ++maxreqs; |
138 | started--; |
|
|
139 | else |
|
|
140 | { |
|
|
141 | int errorno = errno; |
|
|
142 | errno = req->errorno; |
|
|
143 | |
|
|
144 | if (req->type == REQ_READ) |
|
|
145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
146 | |
|
|
147 | if (req->statdata) |
|
|
148 | { |
|
|
149 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
150 | PL_laststatval = req->result; |
|
|
151 | PL_statcache = *(req->statdata); |
|
|
152 | } |
|
|
153 | |
|
|
154 | ENTER; |
|
|
155 | PUSHMARK (SP); |
|
|
156 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
157 | |
|
|
158 | if (req->type == REQ_OPEN) |
|
|
159 | { |
|
|
160 | /* convert fd to fh */ |
|
|
161 | SV *fh; |
|
|
162 | |
|
|
163 | PUTBACK; |
|
|
164 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
165 | SPAGAIN; |
|
|
166 | |
|
|
167 | fh = SvREFCNT_inc (POPs); |
|
|
168 | |
|
|
169 | PUSHMARK (SP); |
|
|
170 | XPUSHs (sv_2mortal (fh)); |
|
|
171 | } |
|
|
172 | |
|
|
173 | if (SvOK (req->callback)) |
|
|
174 | { |
|
|
175 | PUTBACK; |
|
|
176 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
177 | SPAGAIN; |
|
|
178 | |
|
|
179 | if (SvTRUE (ERRSV)) |
|
|
180 | { |
|
|
181 | free_req (req); |
|
|
182 | croak (0); |
|
|
183 | } |
|
|
184 | } |
|
|
185 | |
|
|
186 | LEAVE; |
|
|
187 | |
|
|
188 | errno = errorno; |
|
|
189 | count++; |
|
|
190 | } |
|
|
191 | |
|
|
192 | free_req (req); |
|
|
193 | } |
891 | } |
194 | |
892 | |
|
|
893 | unblock_sig (); |
195 | return count; |
894 | return count; |
196 | } |
|
|
197 | |
|
|
198 | static void *aio_proc(void *arg); |
|
|
199 | |
|
|
200 | static void |
|
|
201 | start_thread (void) |
|
|
202 | { |
|
|
203 | sigset_t fullsigset, oldsigset; |
|
|
204 | pthread_t tid; |
|
|
205 | pthread_attr_t attr; |
|
|
206 | |
|
|
207 | pthread_attr_init (&attr); |
|
|
208 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
209 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
210 | |
|
|
211 | sigfillset (&fullsigset); |
|
|
212 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
213 | |
|
|
214 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
215 | started++; |
|
|
216 | |
|
|
217 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
218 | } |
|
|
219 | |
|
|
220 | static void |
|
|
221 | send_req (aio_req req) |
|
|
222 | { |
|
|
223 | nreqs++; |
|
|
224 | |
|
|
225 | pthread_mutex_lock (&reqlock); |
|
|
226 | |
|
|
227 | req->next = 0; |
|
|
228 | |
|
|
229 | if (reqe) |
|
|
230 | { |
|
|
231 | reqe->next = req; |
|
|
232 | reqe = req; |
|
|
233 | } |
|
|
234 | else |
|
|
235 | reqe = reqs = req; |
|
|
236 | |
|
|
237 | pthread_cond_signal (&reqwait); |
|
|
238 | pthread_mutex_unlock (&reqlock); |
|
|
239 | |
|
|
240 | if (nreqs > max_outstanding) |
|
|
241 | for (;;) |
|
|
242 | { |
|
|
243 | poll_cb (); |
|
|
244 | |
|
|
245 | if (nreqs <= max_outstanding) |
|
|
246 | break; |
|
|
247 | |
|
|
248 | poll_wait (); |
|
|
249 | } |
|
|
250 | } |
|
|
251 | |
|
|
252 | static void |
|
|
253 | end_thread (void) |
|
|
254 | { |
|
|
255 | aio_req req; |
|
|
256 | Newz (0, req, 1, aio_cb); |
|
|
257 | req->type = REQ_QUIT; |
|
|
258 | |
|
|
259 | send_req (req); |
|
|
260 | } |
|
|
261 | |
|
|
262 | static void min_parallel (int nthreads) |
|
|
263 | { |
|
|
264 | while (nthreads > started) |
|
|
265 | start_thread (); |
|
|
266 | } |
|
|
267 | |
|
|
268 | static void max_parallel (int nthreads) |
|
|
269 | { |
|
|
270 | int cur = started; |
|
|
271 | |
|
|
272 | while (cur > nthreads) |
|
|
273 | { |
|
|
274 | end_thread (); |
|
|
275 | cur--; |
|
|
276 | } |
|
|
277 | |
|
|
278 | while (started > nthreads) |
|
|
279 | { |
|
|
280 | poll_wait (); |
|
|
281 | poll_cb (); |
|
|
282 | } |
|
|
283 | } |
|
|
284 | |
|
|
285 | static void create_pipe () |
|
|
286 | { |
|
|
287 | if (pipe (respipe)) |
|
|
288 | croak ("unable to initialize result pipe"); |
|
|
289 | |
|
|
290 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
291 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
292 | |
|
|
293 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
294 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
295 | } |
|
|
296 | |
|
|
297 | static void atfork_prepare (void) |
|
|
298 | { |
|
|
299 | for (;;) { |
|
|
300 | |
|
|
301 | for (;;) |
|
|
302 | { |
|
|
303 | poll_cb (); |
|
|
304 | |
|
|
305 | if (!nreqs) |
|
|
306 | break; |
|
|
307 | |
|
|
308 | poll_wait (); |
|
|
309 | } |
|
|
310 | |
|
|
311 | pthread_mutex_lock (&reqlock); |
|
|
312 | |
|
|
313 | if (!nreqs) |
|
|
314 | break; |
|
|
315 | |
|
|
316 | pthread_mutex_unlock (&reqlock); |
|
|
317 | } |
|
|
318 | |
|
|
319 | pthread_mutex_lock (&reslock); |
|
|
320 | |
|
|
321 | assert (!nreqs && !reqs && !ress); |
|
|
322 | } |
|
|
323 | |
|
|
324 | static void atfork_parent (void) |
|
|
325 | { |
|
|
326 | pthread_mutex_unlock (&reslock); |
|
|
327 | pthread_mutex_unlock (&reqlock); |
|
|
328 | } |
|
|
329 | |
|
|
330 | static void atfork_child (void) |
|
|
331 | { |
|
|
332 | int restart = started; |
|
|
333 | started = 0; |
|
|
334 | |
|
|
335 | atfork_parent (); |
|
|
336 | |
|
|
337 | min_parallel (restart); |
|
|
338 | } |
895 | } |
339 | |
896 | |
340 | /*****************************************************************************/ |
897 | /*****************************************************************************/ |
341 | /* work around various missing functions */ |
898 | /* work around various missing functions */ |
342 | |
899 | |
… | |
… | |
347 | /* |
904 | /* |
348 | * make our pread/pwrite safe against themselves, but not against |
905 | * make our pread/pwrite safe against themselves, but not against |
349 | * normal read/write by using a mutex. slows down execution a lot, |
906 | * normal read/write by using a mutex. slows down execution a lot, |
350 | * but that's your problem, not mine. |
907 | * but that's your problem, not mine. |
351 | */ |
908 | */ |
352 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
909 | static mutex_t preadwritelock = X_MUTEX_INIT; |
353 | |
910 | |
354 | static ssize_t |
911 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
355 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
356 | { |
912 | { |
357 | ssize_t res; |
913 | ssize_t res; |
358 | off_t ooffset; |
914 | off_t ooffset; |
359 | |
915 | |
360 | pthread_mutex_lock (&iolock); |
916 | X_LOCK (preadwritelock); |
361 | ooffset = lseek (fd, 0, SEEK_CUR); |
917 | ooffset = lseek (fd, 0, SEEK_CUR); |
362 | lseek (fd, offset, SEEK_SET); |
918 | lseek (fd, offset, SEEK_SET); |
363 | res = read (fd, buf, count); |
919 | res = read (fd, buf, count); |
364 | lseek (fd, ooffset, SEEK_SET); |
920 | lseek (fd, ooffset, SEEK_SET); |
365 | pthread_mutex_unlock (&iolock); |
921 | X_UNLOCK (preadwritelock); |
366 | |
922 | |
367 | return res; |
923 | return res; |
368 | } |
924 | } |
369 | |
925 | |
370 | static ssize_t |
|
|
371 | pwrite (int fd, void *buf, size_t count, off_t offset) |
926 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
372 | { |
927 | { |
373 | ssize_t res; |
928 | ssize_t res; |
374 | off_t ooffset; |
929 | off_t ooffset; |
375 | |
930 | |
376 | pthread_mutex_lock (&iolock); |
931 | X_LOCK (preadwritelock); |
377 | ooffset = lseek (fd, 0, SEEK_CUR); |
932 | ooffset = lseek (fd, 0, SEEK_CUR); |
378 | lseek (fd, offset, SEEK_SET); |
933 | lseek (fd, offset, SEEK_SET); |
379 | res = write (fd, buf, count); |
934 | res = write (fd, buf, count); |
380 | lseek (fd, offset, SEEK_SET); |
935 | lseek (fd, offset, SEEK_SET); |
381 | pthread_mutex_unlock (&iolock); |
936 | X_UNLOCK (preadwritelock); |
382 | |
937 | |
383 | return res; |
938 | return res; |
384 | } |
939 | } |
|
|
940 | #endif |
|
|
941 | |
|
|
942 | #ifndef HAVE_FUTIMES |
|
|
943 | |
|
|
944 | # define utimes(path,times) aio_utimes (path, times) |
|
|
945 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
946 | |
|
|
947 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
948 | { |
|
|
949 | if (times) |
|
|
950 | { |
|
|
951 | struct utimbuf buf; |
|
|
952 | |
|
|
953 | buf.actime = times[0].tv_sec; |
|
|
954 | buf.modtime = times[1].tv_sec; |
|
|
955 | |
|
|
956 | return utime (filename, &buf); |
|
|
957 | } |
|
|
958 | else |
|
|
959 | return utime (filename, 0); |
|
|
960 | } |
|
|
961 | |
|
|
962 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
963 | { |
|
|
964 | errno = ENOSYS; |
|
|
965 | return -1; |
|
|
966 | } |
|
|
967 | |
385 | #endif |
968 | #endif |
386 | |
969 | |
387 | #if !HAVE_FDATASYNC |
970 | #if !HAVE_FDATASYNC |
388 | # define fdatasync fsync |
971 | # define fdatasync fsync |
389 | #endif |
972 | #endif |
390 | |
973 | |
391 | #if !HAVE_READAHEAD |
974 | #if !HAVE_READAHEAD |
392 | # define readahead aio_readahead |
975 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
393 | |
976 | |
394 | static char readahead_buf[4096]; |
977 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
395 | |
|
|
396 | static ssize_t |
|
|
397 | readahead (int fd, off_t offset, size_t count) |
|
|
398 | { |
978 | { |
|
|
979 | size_t todo = count; |
|
|
980 | dBUF; |
|
|
981 | |
399 | while (count > 0) |
982 | while (todo > 0) |
400 | { |
983 | { |
401 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
984 | size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE; |
402 | |
985 | |
403 | pread (fd, readahead_buf, len, offset); |
986 | pread (fd, aio_buf, len, offset); |
404 | offset += len; |
987 | offset += len; |
405 | count -= len; |
988 | todo -= len; |
406 | } |
989 | } |
407 | |
990 | |
408 | errno = 0; |
991 | errno = 0; |
|
|
992 | return count; |
409 | } |
993 | } |
|
|
994 | |
410 | #endif |
995 | #endif |
411 | |
996 | |
|
|
997 | #if !HAVE_READDIR_R |
|
|
998 | # define readdir_r aio_readdir_r |
|
|
999 | |
|
|
1000 | static mutex_t readdirlock = X_MUTEX_INIT; |
|
|
1001 | |
|
|
1002 | static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) |
|
|
1003 | { |
|
|
1004 | X_DIRENT *e; |
|
|
1005 | int errorno; |
|
|
1006 | |
|
|
1007 | X_LOCK (readdirlock); |
|
|
1008 | |
|
|
1009 | e = readdir (dirp); |
|
|
1010 | errorno = errno; |
|
|
1011 | |
|
|
1012 | if (e) |
|
|
1013 | { |
|
|
1014 | *res = ent; |
|
|
1015 | strcpy (ent->d_name, e->d_name); |
|
|
1016 | } |
|
|
1017 | else |
|
|
1018 | *res = 0; |
|
|
1019 | |
|
|
1020 | X_UNLOCK (readdirlock); |
|
|
1021 | |
|
|
1022 | errno = errorno; |
|
|
1023 | return e ? 0 : -1; |
|
|
1024 | } |
|
|
1025 | #endif |
|
|
1026 | |
|
|
1027 | /* sendfile always needs emulation */ |
|
|
1028 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
1029 | { |
|
|
1030 | ssize_t res; |
|
|
1031 | |
|
|
1032 | if (!count) |
|
|
1033 | return 0; |
|
|
1034 | |
|
|
1035 | #if HAVE_SENDFILE |
|
|
1036 | # if __linux |
|
|
1037 | res = sendfile (ofd, ifd, &offset, count); |
|
|
1038 | |
|
|
1039 | # elif __freebsd |
|
|
1040 | /* |
|
|
1041 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
1042 | * wasted on making it similar to other I/O functions. |
|
|
1043 | */ |
|
|
1044 | { |
|
|
1045 | off_t sbytes; |
|
|
1046 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
1047 | |
|
|
1048 | if (res < 0 && sbytes) |
|
|
1049 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
1050 | res = sbytes; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | # elif __hpux |
|
|
1054 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
1055 | |
|
|
1056 | # elif __solaris |
|
|
1057 | { |
|
|
1058 | struct sendfilevec vec; |
|
|
1059 | size_t sbytes; |
|
|
1060 | |
|
|
1061 | vec.sfv_fd = ifd; |
|
|
1062 | vec.sfv_flag = 0; |
|
|
1063 | vec.sfv_off = offset; |
|
|
1064 | vec.sfv_len = count; |
|
|
1065 | |
|
|
1066 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
1067 | |
|
|
1068 | if (res < 0 && sbytes) |
|
|
1069 | res = sbytes; |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | # endif |
|
|
1073 | #else |
|
|
1074 | res = -1; |
|
|
1075 | errno = ENOSYS; |
|
|
1076 | #endif |
|
|
1077 | |
|
|
1078 | if (res < 0 |
|
|
1079 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
1080 | #if __solaris |
|
|
1081 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
1082 | #endif |
|
|
1083 | ) |
|
|
1084 | ) |
|
|
1085 | { |
|
|
1086 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
1087 | dBUF; |
|
|
1088 | |
|
|
1089 | res = 0; |
|
|
1090 | |
|
|
1091 | while (count) |
|
|
1092 | { |
|
|
1093 | ssize_t cnt; |
|
|
1094 | |
|
|
1095 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
1096 | |
|
|
1097 | if (cnt <= 0) |
|
|
1098 | { |
|
|
1099 | if (cnt && !res) res = -1; |
|
|
1100 | break; |
|
|
1101 | } |
|
|
1102 | |
|
|
1103 | cnt = write (ofd, aio_buf, cnt); |
|
|
1104 | |
|
|
1105 | if (cnt <= 0) |
|
|
1106 | { |
|
|
1107 | if (cnt && !res) res = -1; |
|
|
1108 | break; |
|
|
1109 | } |
|
|
1110 | |
|
|
1111 | offset += cnt; |
|
|
1112 | res += cnt; |
|
|
1113 | count -= cnt; |
|
|
1114 | } |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | return res; |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | /* read a full directory */ |
|
|
1121 | static void scandir_ (aio_req req, worker *self) |
|
|
1122 | { |
|
|
1123 | DIR *dirp; |
|
|
1124 | union |
|
|
1125 | { |
|
|
1126 | X_DIRENT d; |
|
|
1127 | char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1]; |
|
|
1128 | } *u; |
|
|
1129 | X_DIRENT *entp; |
|
|
1130 | char *name, *names; |
|
|
1131 | int memlen = 4096; |
|
|
1132 | int memofs = 0; |
|
|
1133 | int res = 0; |
|
|
1134 | |
|
|
1135 | X_LOCK (wrklock); |
|
|
1136 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1137 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1138 | req->flags |= FLAG_PTR2_FREE; |
|
|
1139 | req->ptr2 = names = malloc (memlen); |
|
|
1140 | X_UNLOCK (wrklock); |
|
|
1141 | |
|
|
1142 | if (dirp && u && names) |
|
|
1143 | for (;;) |
|
|
1144 | { |
|
|
1145 | errno = 0; |
|
|
1146 | readdir_r (dirp, &u->d, &entp); |
|
|
1147 | |
|
|
1148 | if (!entp) |
|
|
1149 | break; |
|
|
1150 | |
|
|
1151 | name = entp->d_name; |
|
|
1152 | |
|
|
1153 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1154 | { |
|
|
1155 | int len = strlen (name) + 1; |
|
|
1156 | |
|
|
1157 | res++; |
|
|
1158 | |
|
|
1159 | while (memofs + len > memlen) |
|
|
1160 | { |
|
|
1161 | memlen *= 2; |
|
|
1162 | X_LOCK (wrklock); |
|
|
1163 | req->ptr2 = names = realloc (names, memlen); |
|
|
1164 | X_UNLOCK (wrklock); |
|
|
1165 | |
|
|
1166 | if (!names) |
|
|
1167 | break; |
|
|
1168 | } |
|
|
1169 | |
|
|
1170 | memcpy (names + memofs, name, len); |
|
|
1171 | memofs += len; |
|
|
1172 | } |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | if (errno) |
|
|
1176 | res = -1; |
|
|
1177 | |
|
|
1178 | req->result = res; |
|
|
1179 | } |
|
|
1180 | |
412 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
413 | |
1182 | |
414 | static void * |
1183 | X_THREAD_PROC (aio_proc) |
415 | aio_proc (void *thr_arg) |
|
|
416 | { |
1184 | { |
|
|
1185 | {//D |
417 | aio_req req; |
1186 | aio_req req; |
418 | int type; |
1187 | struct timespec ts; |
|
|
1188 | worker *self = (worker *)thr_arg; |
419 | |
1189 | |
420 | do |
1190 | /* try to distribute timeouts somewhat randomly */ |
|
|
1191 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
|
|
1192 | |
|
|
1193 | for (;;) |
421 | { |
1194 | { |
422 | pthread_mutex_lock (&reqlock); |
1195 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1196 | |
|
|
1197 | X_LOCK (reqlock); |
423 | |
1198 | |
424 | for (;;) |
1199 | for (;;) |
425 | { |
1200 | { |
426 | req = reqs; |
1201 | self->req = req = reqq_shift (&req_queue); |
427 | |
|
|
428 | if (reqs) |
|
|
429 | { |
|
|
430 | reqs = reqs->next; |
|
|
431 | if (!reqs) reqe = 0; |
|
|
432 | } |
|
|
433 | |
1202 | |
434 | if (req) |
1203 | if (req) |
435 | break; |
1204 | break; |
436 | |
1205 | |
437 | pthread_cond_wait (&reqwait, &reqlock); |
1206 | ++idle; |
|
|
1207 | |
|
|
1208 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1209 | == ETIMEDOUT) |
|
|
1210 | { |
|
|
1211 | if (idle > max_idle) |
|
|
1212 | { |
|
|
1213 | --idle; |
|
|
1214 | X_UNLOCK (reqlock); |
|
|
1215 | X_LOCK (wrklock); |
|
|
1216 | --started; |
|
|
1217 | X_UNLOCK (wrklock); |
|
|
1218 | goto quit; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1222 | X_COND_WAIT (reqwait, reqlock); |
|
|
1223 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1224 | } |
|
|
1225 | |
|
|
1226 | --idle; |
438 | } |
1227 | } |
439 | |
1228 | |
440 | pthread_mutex_unlock (&reqlock); |
1229 | --nready; |
|
|
1230 | |
|
|
1231 | X_UNLOCK (reqlock); |
441 | |
1232 | |
442 | errno = 0; /* strictly unnecessary */ |
1233 | errno = 0; /* strictly unnecessary */ |
443 | |
1234 | |
444 | type = req->type; |
1235 | if (!(req->flags & FLAG_CANCELLED)) |
445 | |
|
|
446 | switch (type) |
1236 | switch (req->type) |
|
|
1237 | { |
|
|
1238 | case REQ_READ: req->result = req->offs >= 0 |
|
|
1239 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1240 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1241 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1242 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1243 | : write (req->int1, req->ptr1, req->size); break; |
|
|
1244 | |
|
|
1245 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1246 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1247 | |
|
|
1248 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1249 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1250 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1251 | |
|
|
1252 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1253 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1254 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1255 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1256 | case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1257 | case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1258 | |
|
|
1259 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1260 | case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break; |
|
|
1261 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1262 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1263 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1264 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1265 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1266 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1267 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1268 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1269 | |
|
|
1270 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1271 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1272 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1273 | |
|
|
1274 | case REQ_BUSY: |
|
|
1275 | #ifdef _WIN32 |
|
|
1276 | Sleep (req->nv1 * 1000.); |
|
|
1277 | #else |
|
|
1278 | { |
|
|
1279 | struct timeval tv; |
|
|
1280 | |
|
|
1281 | tv.tv_sec = req->nv1; |
|
|
1282 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1283 | |
|
|
1284 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1285 | } |
|
|
1286 | #endif |
|
|
1287 | break; |
|
|
1288 | |
|
|
1289 | case REQ_UTIME: |
|
|
1290 | case REQ_FUTIME: |
|
|
1291 | { |
|
|
1292 | struct timeval tv[2]; |
|
|
1293 | struct timeval *times; |
|
|
1294 | |
|
|
1295 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1296 | { |
|
|
1297 | tv[0].tv_sec = req->nv1; |
|
|
1298 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1299 | tv[1].tv_sec = req->nv2; |
|
|
1300 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1301 | |
|
|
1302 | times = tv; |
|
|
1303 | } |
|
|
1304 | else |
|
|
1305 | times = 0; |
|
|
1306 | |
|
|
1307 | |
|
|
1308 | req->result = req->type == REQ_FUTIME |
|
|
1309 | ? futimes (req->int1, times) |
|
|
1310 | : utimes (req->ptr1, times); |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | case REQ_GROUP: |
|
|
1314 | case REQ_NOP: |
|
|
1315 | break; |
|
|
1316 | |
|
|
1317 | case REQ_QUIT: |
|
|
1318 | goto quit; |
|
|
1319 | |
|
|
1320 | default: |
|
|
1321 | req->result = -1; |
|
|
1322 | break; |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | req->errorno = errno; |
|
|
1326 | |
|
|
1327 | X_LOCK (reslock); |
|
|
1328 | |
|
|
1329 | ++npending; |
|
|
1330 | |
|
|
1331 | if (!reqq_push (&res_queue, req)) |
447 | { |
1332 | { |
448 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1333 | /* write a dummy byte to the pipe so fh becomes ready */ |
449 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1334 | respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
450 | |
1335 | |
451 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1336 | /* optionally signal the main thread asynchronously */ |
452 | |
1337 | if (main_sig) |
453 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1338 | pthread_kill (main_tid, main_sig); |
454 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
455 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
456 | |
|
|
457 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
458 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
459 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
460 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
461 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
462 | |
|
|
463 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
464 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
465 | |
|
|
466 | case REQ_QUIT: |
|
|
467 | break; |
|
|
468 | |
|
|
469 | default: |
|
|
470 | req->result = ENOSYS; |
|
|
471 | break; |
|
|
472 | } |
1339 | } |
473 | |
1340 | |
474 | req->errorno = errno; |
1341 | self->req = 0; |
|
|
1342 | worker_clear (self); |
475 | |
1343 | |
476 | pthread_mutex_lock (&reslock); |
1344 | X_UNLOCK (reslock); |
477 | |
|
|
478 | req->next = 0; |
|
|
479 | |
|
|
480 | if (rese) |
|
|
481 | { |
|
|
482 | rese->next = req; |
|
|
483 | rese = req; |
|
|
484 | } |
|
|
485 | else |
|
|
486 | { |
|
|
487 | rese = ress = req; |
|
|
488 | |
|
|
489 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
490 | write (respipe [1], &respipe, 1); |
|
|
491 | } |
|
|
492 | |
|
|
493 | pthread_mutex_unlock (&reslock); |
|
|
494 | } |
1345 | } |
495 | while (type != REQ_QUIT); |
1346 | |
|
|
1347 | quit: |
|
|
1348 | X_LOCK (wrklock); |
|
|
1349 | worker_free (self); |
|
|
1350 | X_UNLOCK (wrklock); |
496 | |
1351 | |
497 | return 0; |
1352 | return 0; |
|
|
1353 | }//D |
|
|
1354 | } |
|
|
1355 | |
|
|
1356 | /*****************************************************************************/ |
|
|
1357 | |
|
|
1358 | static void atfork_prepare (void) |
|
|
1359 | { |
|
|
1360 | X_LOCK (wrklock); |
|
|
1361 | X_LOCK (reqlock); |
|
|
1362 | X_LOCK (reslock); |
|
|
1363 | #if !HAVE_PREADWRITE |
|
|
1364 | X_LOCK (preadwritelock); |
|
|
1365 | #endif |
|
|
1366 | #if !HAVE_READDIR_R |
|
|
1367 | X_LOCK (readdirlock); |
|
|
1368 | #endif |
|
|
1369 | } |
|
|
1370 | |
|
|
1371 | static void atfork_parent (void) |
|
|
1372 | { |
|
|
1373 | #if !HAVE_READDIR_R |
|
|
1374 | X_UNLOCK (readdirlock); |
|
|
1375 | #endif |
|
|
1376 | #if !HAVE_PREADWRITE |
|
|
1377 | X_UNLOCK (preadwritelock); |
|
|
1378 | #endif |
|
|
1379 | X_UNLOCK (reslock); |
|
|
1380 | X_UNLOCK (reqlock); |
|
|
1381 | X_UNLOCK (wrklock); |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | static void atfork_child (void) |
|
|
1385 | { |
|
|
1386 | aio_req prv; |
|
|
1387 | |
|
|
1388 | while (prv = reqq_shift (&req_queue)) |
|
|
1389 | req_destroy (prv); |
|
|
1390 | |
|
|
1391 | while (prv = reqq_shift (&res_queue)) |
|
|
1392 | req_destroy (prv); |
|
|
1393 | |
|
|
1394 | while (wrk_first.next != &wrk_first) |
|
|
1395 | { |
|
|
1396 | worker *wrk = wrk_first.next; |
|
|
1397 | |
|
|
1398 | if (wrk->req) |
|
|
1399 | req_destroy (wrk->req); |
|
|
1400 | |
|
|
1401 | worker_clear (wrk); |
|
|
1402 | worker_free (wrk); |
|
|
1403 | } |
|
|
1404 | |
|
|
1405 | started = 0; |
|
|
1406 | idle = 0; |
|
|
1407 | nreqs = 0; |
|
|
1408 | nready = 0; |
|
|
1409 | npending = 0; |
|
|
1410 | |
|
|
1411 | create_respipe (); |
|
|
1412 | |
|
|
1413 | atfork_parent (); |
498 | } |
1414 | } |
499 | |
1415 | |
500 | #define dREQ \ |
1416 | #define dREQ \ |
501 | aio_req req; \ |
1417 | aio_req req; \ |
|
|
1418 | int req_pri = next_pri; \ |
|
|
1419 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
502 | \ |
1420 | \ |
503 | if (SvOK (callback) && !SvROK (callback)) \ |
1421 | if (SvOK (callback) && !SvROK (callback)) \ |
504 | croak ("clalback must be undef or of reference type"); \ |
1422 | croak ("callback must be undef or of reference type"); \ |
505 | \ |
1423 | \ |
506 | Newz (0, req, 1, aio_cb); \ |
1424 | Newz (0, req, 1, aio_cb); \ |
507 | if (!req) \ |
1425 | if (!req) \ |
508 | croak ("out of memory during aio_req allocation"); \ |
1426 | croak ("out of memory during aio_req allocation"); \ |
509 | \ |
1427 | \ |
510 | req->callback = newSVsv (callback); |
1428 | req->callback = newSVsv (callback); \ |
|
|
1429 | req->pri = req_pri |
|
|
1430 | |
|
|
1431 | #define REQ_SEND \ |
|
|
1432 | req_send (req); \ |
|
|
1433 | \ |
|
|
1434 | if (GIMME_V != G_VOID) \ |
|
|
1435 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
511 | |
1436 | |
512 | MODULE = IO::AIO PACKAGE = IO::AIO |
1437 | MODULE = IO::AIO PACKAGE = IO::AIO |
513 | |
1438 | |
514 | PROTOTYPES: ENABLE |
1439 | PROTOTYPES: ENABLE |
515 | |
1440 | |
516 | BOOT: |
1441 | BOOT: |
517 | { |
1442 | { |
518 | create_pipe (); |
1443 | stash = gv_stashpv ("IO::AIO", 1); |
|
|
1444 | |
|
|
1445 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1446 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1447 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1448 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1449 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1450 | #ifdef _WIN32 |
|
|
1451 | X_MUTEX_CHECK (wrklock); |
|
|
1452 | X_MUTEX_CHECK (reslock); |
|
|
1453 | X_MUTEX_CHECK (reqlock); |
|
|
1454 | X_MUTEX_CHECK (reqwait); |
|
|
1455 | X_MUTEX_CHECK (preadwritelock); |
|
|
1456 | X_MUTEX_CHECK (readdirlock); |
|
|
1457 | |
|
|
1458 | X_COND_CHECK (reqwait); |
|
|
1459 | #else |
|
|
1460 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1461 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
|
|
1462 | #endif |
|
|
1463 | |
|
|
1464 | create_respipe (); |
|
|
1465 | |
519 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1466 | X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); |
520 | } |
1467 | } |
521 | |
1468 | |
522 | void |
1469 | void |
523 | min_parallel(nthreads) |
1470 | max_poll_reqs (int nreqs) |
524 | int nthreads |
|
|
525 | PROTOTYPE: $ |
1471 | PROTOTYPE: $ |
|
|
1472 | CODE: |
|
|
1473 | max_poll_reqs = nreqs; |
526 | |
1474 | |
527 | void |
1475 | void |
528 | max_parallel(nthreads) |
1476 | max_poll_time (double nseconds) |
529 | int nthreads |
|
|
530 | PROTOTYPE: $ |
1477 | PROTOTYPE: $ |
|
|
1478 | CODE: |
|
|
1479 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1480 | |
|
|
1481 | void |
|
|
1482 | min_parallel (int nthreads) |
|
|
1483 | PROTOTYPE: $ |
|
|
1484 | |
|
|
1485 | void |
|
|
1486 | max_parallel (int nthreads) |
|
|
1487 | PROTOTYPE: $ |
|
|
1488 | |
|
|
1489 | void |
|
|
1490 | max_idle (int nthreads) |
|
|
1491 | PROTOTYPE: $ |
|
|
1492 | CODE: |
|
|
1493 | set_max_idle (nthreads); |
531 | |
1494 | |
532 | int |
1495 | int |
533 | max_outstanding(nreqs) |
1496 | max_outstanding (int maxreqs) |
534 | int nreqs |
1497 | PROTOTYPE: $ |
535 | PROTOTYPE: $ |
|
|
536 | CODE: |
1498 | CODE: |
537 | RETVAL = max_outstanding; |
1499 | RETVAL = max_outstanding; |
538 | max_outstanding = nreqs; |
1500 | max_outstanding = maxreqs; |
|
|
1501 | OUTPUT: |
|
|
1502 | RETVAL |
539 | |
1503 | |
540 | void |
1504 | void |
541 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1505 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
542 | SV * pathname |
|
|
543 | int flags |
|
|
544 | int mode |
|
|
545 | SV * callback |
|
|
546 | PROTOTYPE: $$$;$ |
1506 | PROTOTYPE: $$$;$ |
547 | CODE: |
1507 | PPCODE: |
548 | { |
1508 | { |
549 | dREQ; |
1509 | dREQ; |
550 | |
1510 | |
551 | req->type = REQ_OPEN; |
1511 | req->type = REQ_OPEN; |
552 | req->data = newSVsv (pathname); |
1512 | req->sv1 = newSVsv (pathname); |
553 | req->dataptr = SvPVbyte_nolen (req->data); |
1513 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
554 | req->fd = flags; |
1514 | req->int1 = flags; |
555 | req->mode = mode; |
1515 | req->mode = mode; |
556 | |
1516 | |
557 | send_req (req); |
1517 | REQ_SEND; |
558 | } |
1518 | } |
559 | |
1519 | |
560 | void |
1520 | void |
561 | aio_close(fh,callback=&PL_sv_undef) |
1521 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
562 | SV * fh |
|
|
563 | SV * callback |
|
|
564 | PROTOTYPE: $;$ |
1522 | PROTOTYPE: $;$ |
565 | ALIAS: |
1523 | ALIAS: |
566 | aio_close = REQ_CLOSE |
|
|
567 | aio_fsync = REQ_FSYNC |
1524 | aio_fsync = REQ_FSYNC |
568 | aio_fdatasync = REQ_FDATASYNC |
1525 | aio_fdatasync = REQ_FDATASYNC |
569 | CODE: |
1526 | PPCODE: |
570 | { |
1527 | { |
571 | dREQ; |
1528 | dREQ; |
572 | |
1529 | |
573 | req->type = ix; |
1530 | req->type = ix; |
574 | req->fh = newSVsv (fh); |
1531 | req->sv1 = newSVsv (fh); |
575 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1532 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
576 | |
1533 | |
577 | send_req (req); |
1534 | REQ_SEND (req); |
578 | } |
1535 | } |
579 | |
1536 | |
580 | void |
1537 | void |
|
|
1538 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
|
|
1539 | PROTOTYPE: $;$ |
|
|
1540 | PPCODE: |
|
|
1541 | { |
|
|
1542 | PerlIO *io = IoIFP (sv_2io (fh)); |
|
|
1543 | int fd = PerlIO_fileno (io); |
|
|
1544 | |
|
|
1545 | if (fd < 0) |
|
|
1546 | croak ("aio_close called with fd-less filehandle"); |
|
|
1547 | |
|
|
1548 | PerlIO_binmode (io, 0, 0, 0); |
|
|
1549 | |
|
|
1550 | { |
|
|
1551 | dREQ; |
|
|
1552 | |
|
|
1553 | req->type = REQ_CLOSE; |
|
|
1554 | req->sv1 = newSVsv (fh); |
|
|
1555 | req->ptr1 = (void *)io; |
|
|
1556 | |
|
|
1557 | REQ_SEND (req); |
|
|
1558 | } |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | void |
581 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1562 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
582 | SV * fh |
|
|
583 | UV offset |
|
|
584 | IV length |
|
|
585 | SV * data |
|
|
586 | IV dataoffset |
|
|
587 | SV * callback |
|
|
588 | ALIAS: |
1563 | ALIAS: |
589 | aio_read = REQ_READ |
1564 | aio_read = REQ_READ |
590 | aio_write = REQ_WRITE |
1565 | aio_write = REQ_WRITE |
591 | PROTOTYPE: $$$$$;$ |
1566 | PROTOTYPE: $$$$$;$ |
592 | CODE: |
1567 | PPCODE: |
593 | { |
1568 | { |
594 | aio_req req; |
|
|
595 | STRLEN svlen; |
1569 | STRLEN svlen; |
596 | char *svptr = SvPVbyte (data, svlen); |
1570 | char *svptr = SvPVbyte (data, svlen); |
|
|
1571 | UV len = SvUV (length); |
597 | |
1572 | |
598 | SvUPGRADE (data, SVt_PV); |
1573 | SvUPGRADE (data, SVt_PV); |
599 | SvPOK_on (data); |
1574 | SvPOK_on (data); |
600 | |
1575 | |
601 | if (dataoffset < 0) |
1576 | if (dataoffset < 0) |
602 | dataoffset += svlen; |
1577 | dataoffset += svlen; |
603 | |
1578 | |
604 | if (dataoffset < 0 || dataoffset > svlen) |
1579 | if (dataoffset < 0 || dataoffset > svlen) |
605 | croak ("data offset outside of string"); |
1580 | croak ("dataoffset outside of data scalar"); |
606 | |
1581 | |
607 | if (ix == REQ_WRITE) |
1582 | if (ix == REQ_WRITE) |
608 | { |
1583 | { |
609 | /* write: check length and adjust. */ |
1584 | /* write: check length and adjust. */ |
610 | if (length < 0 || length + dataoffset > svlen) |
1585 | if (!SvOK (length) || len + dataoffset > svlen) |
611 | length = svlen - dataoffset; |
1586 | len = svlen - dataoffset; |
612 | } |
1587 | } |
613 | else |
1588 | else |
614 | { |
1589 | { |
615 | /* read: grow scalar as necessary */ |
1590 | /* read: grow scalar as necessary */ |
616 | svptr = SvGROW (data, length + dataoffset); |
1591 | svptr = SvGROW (data, len + dataoffset + 1); |
617 | } |
1592 | } |
618 | |
1593 | |
619 | if (length < 0) |
1594 | if (len < 0) |
620 | croak ("length must not be negative"); |
1595 | croak ("length must not be negative"); |
621 | |
1596 | |
622 | { |
1597 | { |
623 | dREQ; |
1598 | dREQ; |
624 | |
1599 | |
625 | req->type = ix; |
1600 | req->type = ix; |
626 | req->fh = newSVsv (fh); |
1601 | req->sv1 = newSVsv (fh); |
627 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1602 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
628 | : IoOFP (sv_2io (fh))); |
1603 | : IoOFP (sv_2io (fh))); |
|
|
1604 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
629 | req->offset = offset; |
1605 | req->size = len; |
630 | req->length = length; |
|
|
631 | req->data = SvREFCNT_inc (data); |
1606 | req->sv2 = SvREFCNT_inc (data); |
632 | req->dataptr = (char *)svptr + dataoffset; |
1607 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1608 | req->stroffset = dataoffset; |
633 | |
1609 | |
634 | send_req (req); |
1610 | if (!SvREADONLY (data)) |
|
|
1611 | { |
|
|
1612 | SvREADONLY_on (data); |
|
|
1613 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | REQ_SEND; |
635 | } |
1617 | } |
636 | } |
1618 | } |
637 | |
1619 | |
638 | void |
1620 | void |
|
|
1621 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1622 | PROTOTYPE: $$;$ |
|
|
1623 | PPCODE: |
|
|
1624 | { |
|
|
1625 | SV *data; |
|
|
1626 | dREQ; |
|
|
1627 | |
|
|
1628 | data = newSV (NAME_MAX); |
|
|
1629 | SvPOK_on (data); |
|
|
1630 | |
|
|
1631 | req->type = REQ_READLINK; |
|
|
1632 | req->sv1 = newSVsv (path); |
|
|
1633 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1634 | req->sv2 = data; |
|
|
1635 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1636 | |
|
|
1637 | REQ_SEND; |
|
|
1638 | } |
|
|
1639 | |
|
|
1640 | void |
|
|
1641 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
|
|
1642 | PROTOTYPE: $$$$;$ |
|
|
1643 | PPCODE: |
|
|
1644 | { |
|
|
1645 | dREQ; |
|
|
1646 | |
|
|
1647 | req->type = REQ_SENDFILE; |
|
|
1648 | req->sv1 = newSVsv (out_fh); |
|
|
1649 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1650 | req->sv2 = newSVsv (in_fh); |
|
|
1651 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1652 | req->offs = SvVAL64 (in_offset); |
|
|
1653 | req->size = length; |
|
|
1654 | |
|
|
1655 | REQ_SEND; |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | void |
639 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1659 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
640 | SV * fh |
|
|
641 | UV offset |
|
|
642 | IV length |
|
|
643 | SV * callback |
|
|
644 | PROTOTYPE: $$$;$ |
1660 | PROTOTYPE: $$$;$ |
645 | CODE: |
1661 | PPCODE: |
646 | { |
1662 | { |
647 | dREQ; |
1663 | dREQ; |
648 | |
1664 | |
649 | req->type = REQ_READAHEAD; |
1665 | req->type = REQ_READAHEAD; |
650 | req->fh = newSVsv (fh); |
1666 | req->sv1 = newSVsv (fh); |
651 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1667 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
652 | req->offset = offset; |
1668 | req->offs = SvVAL64 (offset); |
653 | req->length = length; |
1669 | req->size = length; |
654 | |
1670 | |
655 | send_req (req); |
1671 | REQ_SEND; |
656 | } |
1672 | } |
657 | |
1673 | |
658 | void |
1674 | void |
659 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1675 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
660 | SV * fh_or_path |
|
|
661 | SV * callback |
|
|
662 | ALIAS: |
1676 | ALIAS: |
663 | aio_stat = REQ_STAT |
1677 | aio_stat = REQ_STAT |
664 | aio_lstat = REQ_LSTAT |
1678 | aio_lstat = REQ_LSTAT |
665 | CODE: |
1679 | PPCODE: |
666 | { |
1680 | { |
667 | dREQ; |
1681 | dREQ; |
668 | |
1682 | |
669 | New (0, req->statdata, 1, Stat_t); |
1683 | req->ptr2 = malloc (sizeof (Stat_t)); |
670 | if (!req->statdata) |
1684 | if (!req->ptr2) |
671 | { |
1685 | { |
672 | free_req (req); |
1686 | req_destroy (req); |
673 | croak ("out of memory during aio_req->statdata allocation"); |
1687 | croak ("out of memory during aio_stat statdata allocation"); |
674 | } |
1688 | } |
|
|
1689 | |
|
|
1690 | req->flags |= FLAG_PTR2_FREE; |
|
|
1691 | req->sv1 = newSVsv (fh_or_path); |
675 | |
1692 | |
676 | if (SvPOK (fh_or_path)) |
1693 | if (SvPOK (fh_or_path)) |
677 | { |
1694 | { |
678 | req->type = ix; |
1695 | req->type = ix; |
679 | req->data = newSVsv (fh_or_path); |
|
|
680 | req->dataptr = SvPVbyte_nolen (req->data); |
1696 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
681 | } |
1697 | } |
682 | else |
1698 | else |
683 | { |
1699 | { |
684 | req->type = REQ_FSTAT; |
1700 | req->type = REQ_FSTAT; |
685 | req->fh = newSVsv (fh_or_path); |
|
|
686 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1701 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
687 | } |
1702 | } |
688 | |
1703 | |
689 | send_req (req); |
1704 | REQ_SEND; |
690 | } |
1705 | } |
691 | |
1706 | |
692 | void |
1707 | void |
|
|
1708 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1709 | PPCODE: |
|
|
1710 | { |
|
|
1711 | dREQ; |
|
|
1712 | |
|
|
1713 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1714 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1715 | req->sv1 = newSVsv (fh_or_path); |
|
|
1716 | |
|
|
1717 | if (SvPOK (fh_or_path)) |
|
|
1718 | { |
|
|
1719 | req->type = REQ_UTIME; |
|
|
1720 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1721 | } |
|
|
1722 | else |
|
|
1723 | { |
|
|
1724 | req->type = REQ_FUTIME; |
|
|
1725 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1726 | } |
|
|
1727 | |
|
|
1728 | REQ_SEND; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | void |
|
|
1732 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1733 | PPCODE: |
|
|
1734 | { |
|
|
1735 | dREQ; |
|
|
1736 | |
|
|
1737 | req->sv1 = newSVsv (fh_or_path); |
|
|
1738 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1739 | |
|
|
1740 | if (SvPOK (fh_or_path)) |
|
|
1741 | { |
|
|
1742 | req->type = REQ_TRUNCATE; |
|
|
1743 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1744 | } |
|
|
1745 | else |
|
|
1746 | { |
|
|
1747 | req->type = REQ_FTRUNCATE; |
|
|
1748 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | REQ_SEND; |
|
|
1752 | } |
|
|
1753 | |
|
|
1754 | void |
|
|
1755 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1756 | PPCODE: |
|
|
1757 | { |
|
|
1758 | dREQ; |
|
|
1759 | |
|
|
1760 | req->mode = mode; |
|
|
1761 | req->sv1 = newSVsv (fh_or_path); |
|
|
1762 | |
|
|
1763 | if (SvPOK (fh_or_path)) |
|
|
1764 | { |
|
|
1765 | req->type = REQ_CHMOD; |
|
|
1766 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1767 | } |
|
|
1768 | else |
|
|
1769 | { |
|
|
1770 | req->type = REQ_FCHMOD; |
|
|
1771 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | REQ_SEND; |
|
|
1775 | } |
|
|
1776 | |
|
|
1777 | void |
|
|
1778 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1779 | PPCODE: |
|
|
1780 | { |
|
|
1781 | dREQ; |
|
|
1782 | |
|
|
1783 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1784 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1785 | req->sv1 = newSVsv (fh_or_path); |
|
|
1786 | |
|
|
1787 | if (SvPOK (fh_or_path)) |
|
|
1788 | { |
|
|
1789 | req->type = REQ_CHOWN; |
|
|
1790 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1791 | } |
|
|
1792 | else |
|
|
1793 | { |
|
|
1794 | req->type = REQ_FCHOWN; |
|
|
1795 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | REQ_SEND; |
|
|
1799 | } |
|
|
1800 | |
|
|
1801 | void |
693 | aio_unlink(pathname,callback=&PL_sv_undef) |
1802 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
694 | SV * pathname |
|
|
695 | SV * callback |
|
|
696 | ALIAS: |
1803 | ALIAS: |
697 | aio_unlink = REQ_UNLINK |
1804 | aio_unlink = REQ_UNLINK |
698 | aio_rmdir = REQ_RMDIR |
1805 | aio_rmdir = REQ_RMDIR |
|
|
1806 | aio_readdir = REQ_READDIR |
699 | CODE: |
1807 | PPCODE: |
700 | { |
1808 | { |
701 | dREQ; |
1809 | dREQ; |
702 | |
1810 | |
703 | req->type = ix; |
1811 | req->type = ix; |
704 | req->data = newSVsv (pathname); |
1812 | req->sv1 = newSVsv (pathname); |
705 | req->dataptr = SvPVbyte_nolen (req->data); |
1813 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
706 | |
|
|
707 | send_req (req); |
|
|
708 | } |
|
|
709 | |
1814 | |
|
|
1815 | REQ_SEND; |
|
|
1816 | } |
|
|
1817 | |
710 | void |
1818 | void |
711 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1819 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
712 | SV * oldpath |
|
|
713 | SV * newpath |
|
|
714 | SV * callback |
|
|
715 | CODE: |
1820 | PPCODE: |
716 | { |
1821 | { |
717 | dREQ; |
1822 | dREQ; |
718 | |
1823 | |
719 | req->type = REQ_SYMLINK; |
1824 | req->type = REQ_MKDIR; |
720 | req->fh = newSVsv (oldpath); |
1825 | req->sv1 = newSVsv (pathname); |
721 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1826 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
722 | req->data = newSVsv (newpath); |
1827 | req->mode = mode; |
723 | req->dataptr = SvPVbyte_nolen (req->data); |
1828 | |
|
|
1829 | REQ_SEND; |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | void |
|
|
1833 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1834 | ALIAS: |
|
|
1835 | aio_link = REQ_LINK |
|
|
1836 | aio_symlink = REQ_SYMLINK |
|
|
1837 | aio_rename = REQ_RENAME |
|
|
1838 | PPCODE: |
|
|
1839 | { |
|
|
1840 | dREQ; |
724 | |
1841 | |
725 | send_req (req); |
1842 | req->type = ix; |
|
|
1843 | req->sv2 = newSVsv (oldpath); |
|
|
1844 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1845 | req->sv1 = newSVsv (newpath); |
|
|
1846 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1847 | |
|
|
1848 | REQ_SEND; |
726 | } |
1849 | } |
727 | |
1850 | |
728 | void |
1851 | void |
|
|
1852 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1853 | PPCODE: |
|
|
1854 | { |
|
|
1855 | dREQ; |
|
|
1856 | |
|
|
1857 | req->type = REQ_MKNOD; |
|
|
1858 | req->sv1 = newSVsv (pathname); |
|
|
1859 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1860 | req->mode = (mode_t)mode; |
|
|
1861 | req->offs = dev; |
|
|
1862 | |
|
|
1863 | REQ_SEND; |
|
|
1864 | } |
|
|
1865 | |
|
|
1866 | void |
|
|
1867 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1868 | PPCODE: |
|
|
1869 | { |
|
|
1870 | dREQ; |
|
|
1871 | |
|
|
1872 | req->type = REQ_BUSY; |
|
|
1873 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1874 | |
|
|
1875 | REQ_SEND; |
|
|
1876 | } |
|
|
1877 | |
|
|
1878 | void |
|
|
1879 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1880 | PROTOTYPE: ;$ |
|
|
1881 | PPCODE: |
|
|
1882 | { |
|
|
1883 | dREQ; |
|
|
1884 | |
|
|
1885 | req->type = REQ_GROUP; |
|
|
1886 | |
|
|
1887 | req_send (req); |
|
|
1888 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | void |
|
|
1892 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1893 | PPCODE: |
|
|
1894 | { |
|
|
1895 | dREQ; |
|
|
1896 | |
|
|
1897 | req->type = REQ_NOP; |
|
|
1898 | |
|
|
1899 | REQ_SEND; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | int |
|
|
1903 | aioreq_pri (int pri = 0) |
|
|
1904 | PROTOTYPE: ;$ |
|
|
1905 | CODE: |
|
|
1906 | RETVAL = next_pri - PRI_BIAS; |
|
|
1907 | if (items > 0) |
|
|
1908 | { |
|
|
1909 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1910 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1911 | next_pri = pri + PRI_BIAS; |
|
|
1912 | } |
|
|
1913 | OUTPUT: |
|
|
1914 | RETVAL |
|
|
1915 | |
|
|
1916 | void |
|
|
1917 | aioreq_nice (int nice = 0) |
|
|
1918 | CODE: |
|
|
1919 | nice = next_pri - nice; |
|
|
1920 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1921 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1922 | next_pri = nice + PRI_BIAS; |
|
|
1923 | |
|
|
1924 | void |
729 | flush() |
1925 | flush () |
730 | PROTOTYPE: |
1926 | PROTOTYPE: |
731 | CODE: |
1927 | CODE: |
732 | while (nreqs) |
1928 | while (nreqs) |
733 | { |
1929 | { |
734 | poll_wait (); |
1930 | poll_wait (); |
735 | poll_cb (); |
1931 | poll_cb (); |
736 | } |
1932 | } |
737 | |
1933 | |
738 | void |
1934 | int |
739 | poll() |
1935 | poll() |
740 | PROTOTYPE: |
1936 | PROTOTYPE: |
741 | CODE: |
1937 | CODE: |
742 | if (nreqs) |
|
|
743 | { |
|
|
744 | poll_wait (); |
1938 | poll_wait (); |
745 | poll_cb (); |
1939 | RETVAL = poll_cb (); |
746 | } |
1940 | OUTPUT: |
|
|
1941 | RETVAL |
747 | |
1942 | |
748 | int |
1943 | int |
749 | poll_fileno() |
1944 | poll_fileno() |
750 | PROTOTYPE: |
1945 | PROTOTYPE: |
751 | CODE: |
1946 | CODE: |
… | |
… | |
763 | |
1958 | |
764 | void |
1959 | void |
765 | poll_wait() |
1960 | poll_wait() |
766 | PROTOTYPE: |
1961 | PROTOTYPE: |
767 | CODE: |
1962 | CODE: |
768 | if (nreqs) |
|
|
769 | poll_wait (); |
1963 | poll_wait (); |
|
|
1964 | |
|
|
1965 | void |
|
|
1966 | setsig (int signum = SIGIO) |
|
|
1967 | PROTOTYPE: ;$ |
|
|
1968 | CODE: |
|
|
1969 | { |
|
|
1970 | if (block_sig_level) |
|
|
1971 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1972 | |
|
|
1973 | X_LOCK (reslock); |
|
|
1974 | main_tid = pthread_self (); |
|
|
1975 | main_sig = signum; |
|
|
1976 | X_UNLOCK (reslock); |
|
|
1977 | |
|
|
1978 | if (main_sig && npending) |
|
|
1979 | pthread_kill (main_tid, main_sig); |
|
|
1980 | } |
|
|
1981 | |
|
|
1982 | void |
|
|
1983 | aio_block (SV *cb) |
|
|
1984 | PROTOTYPE: & |
|
|
1985 | PPCODE: |
|
|
1986 | { |
|
|
1987 | int count; |
|
|
1988 | |
|
|
1989 | block_sig (); |
|
|
1990 | PUSHMARK (SP); |
|
|
1991 | PUTBACK; |
|
|
1992 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1993 | SPAGAIN; |
|
|
1994 | unblock_sig (); |
|
|
1995 | |
|
|
1996 | if (SvTRUE (ERRSV)) |
|
|
1997 | croak (0); |
|
|
1998 | |
|
|
1999 | XSRETURN (count); |
|
|
2000 | } |
770 | |
2001 | |
771 | int |
2002 | int |
772 | nreqs() |
2003 | nreqs() |
773 | PROTOTYPE: |
2004 | PROTOTYPE: |
774 | CODE: |
2005 | CODE: |
775 | RETVAL = nreqs; |
2006 | RETVAL = nreqs; |
776 | OUTPUT: |
2007 | OUTPUT: |
777 | RETVAL |
2008 | RETVAL |
778 | |
2009 | |
|
|
2010 | int |
|
|
2011 | nready() |
|
|
2012 | PROTOTYPE: |
|
|
2013 | CODE: |
|
|
2014 | RETVAL = get_nready (); |
|
|
2015 | OUTPUT: |
|
|
2016 | RETVAL |
|
|
2017 | |
|
|
2018 | int |
|
|
2019 | npending() |
|
|
2020 | PROTOTYPE: |
|
|
2021 | CODE: |
|
|
2022 | RETVAL = get_npending (); |
|
|
2023 | OUTPUT: |
|
|
2024 | RETVAL |
|
|
2025 | |
|
|
2026 | int |
|
|
2027 | nthreads() |
|
|
2028 | PROTOTYPE: |
|
|
2029 | CODE: |
|
|
2030 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
|
|
2031 | RETVAL = started; |
|
|
2032 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
|
|
2033 | OUTPUT: |
|
|
2034 | RETVAL |
|
|
2035 | |
|
|
2036 | PROTOTYPES: DISABLE |
|
|
2037 | |
|
|
2038 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
2039 | |
|
|
2040 | void |
|
|
2041 | cancel (aio_req_ornot req) |
|
|
2042 | CODE: |
|
|
2043 | req_cancel (req); |
|
|
2044 | |
|
|
2045 | void |
|
|
2046 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
2047 | CODE: |
|
|
2048 | SvREFCNT_dec (req->callback); |
|
|
2049 | req->callback = newSVsv (callback); |
|
|
2050 | |
|
|
2051 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
2052 | |
|
|
2053 | void |
|
|
2054 | add (aio_req grp, ...) |
|
|
2055 | PPCODE: |
|
|
2056 | { |
|
|
2057 | int i; |
|
|
2058 | aio_req req; |
|
|
2059 | |
|
|
2060 | if (main_sig && !block_sig_level) |
|
|
2061 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
2062 | |
|
|
2063 | if (grp->int1 == 2) |
|
|
2064 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
2065 | |
|
|
2066 | for (i = 1; i < items; ++i ) |
|
|
2067 | { |
|
|
2068 | if (GIMME_V != G_VOID) |
|
|
2069 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
2070 | |
|
|
2071 | req = SvAIO_REQ (ST (i)); |
|
|
2072 | |
|
|
2073 | if (req) |
|
|
2074 | { |
|
|
2075 | ++grp->size; |
|
|
2076 | req->grp = grp; |
|
|
2077 | |
|
|
2078 | req->grp_prev = 0; |
|
|
2079 | req->grp_next = grp->grp_first; |
|
|
2080 | |
|
|
2081 | if (grp->grp_first) |
|
|
2082 | grp->grp_first->grp_prev = req; |
|
|
2083 | |
|
|
2084 | grp->grp_first = req; |
|
|
2085 | } |
|
|
2086 | } |
|
|
2087 | } |
|
|
2088 | |
|
|
2089 | void |
|
|
2090 | cancel_subs (aio_req_ornot req) |
|
|
2091 | CODE: |
|
|
2092 | req_cancel_subs (req); |
|
|
2093 | |
|
|
2094 | void |
|
|
2095 | result (aio_req grp, ...) |
|
|
2096 | CODE: |
|
|
2097 | { |
|
|
2098 | int i; |
|
|
2099 | AV *av; |
|
|
2100 | |
|
|
2101 | grp->errorno = errno; |
|
|
2102 | |
|
|
2103 | av = newAV (); |
|
|
2104 | |
|
|
2105 | for (i = 1; i < items; ++i ) |
|
|
2106 | av_push (av, newSVsv (ST (i))); |
|
|
2107 | |
|
|
2108 | SvREFCNT_dec (grp->sv1); |
|
|
2109 | grp->sv1 = (SV *)av; |
|
|
2110 | } |
|
|
2111 | |
|
|
2112 | void |
|
|
2113 | errno (aio_req grp, int errorno = errno) |
|
|
2114 | CODE: |
|
|
2115 | grp->errorno = errorno; |
|
|
2116 | |
|
|
2117 | void |
|
|
2118 | limit (aio_req grp, int limit) |
|
|
2119 | CODE: |
|
|
2120 | grp->int2 = limit; |
|
|
2121 | aio_grp_feed (grp); |
|
|
2122 | |
|
|
2123 | void |
|
|
2124 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
2125 | CODE: |
|
|
2126 | { |
|
|
2127 | SvREFCNT_dec (grp->sv2); |
|
|
2128 | grp->sv2 = newSVsv (callback); |
|
|
2129 | |
|
|
2130 | if (grp->int2 <= 0) |
|
|
2131 | grp->int2 = 2; |
|
|
2132 | |
|
|
2133 | aio_grp_feed (grp); |
|
|
2134 | } |
|
|
2135 | |