1 | #define _REENTRANT 1 |
1 | #include "xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
9 | #include "autoconf/config.h" |
9 | |
10 | |
10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
11 | #include <stddef.h> |
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12 | #include <stdlib.h> |
13 | #include <errno.h> |
13 | #include <errno.h> |
14 | #include <sys/time.h> |
14 | #include <sys/time.h> |
15 | #include <sys/select.h> |
15 | #include <sys/select.h> |
16 | #include <sys/types.h> |
16 | #include <sys/types.h> |
17 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
… | |
… | |
34 | # else |
34 | # else |
35 | # error sendfile support requested but not available |
35 | # error sendfile support requested but not available |
36 | # endif |
36 | # endif |
37 | #endif |
37 | #endif |
38 | |
38 | |
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39 | /* number of seconds after which idle threads exit */ |
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40 | #define IDLE_TIMEOUT 10 |
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41 | |
39 | /* used for struct dirent, AIX doesn't provide it */ |
42 | /* used for struct dirent, AIX doesn't provide it */ |
40 | #ifndef NAME_MAX |
43 | #ifndef NAME_MAX |
41 | # define NAME_MAX 4096 |
44 | # define NAME_MAX 4096 |
42 | #endif |
45 | #endif |
43 | |
46 | |
44 | #if __ia64 |
47 | /* buffer size for various temporary buffers */ |
45 | # define STACKSIZE 65536 |
48 | #define AIO_BUFSIZE 65536 |
46 | #else |
49 | |
47 | # define STACKSIZE 8192 |
50 | #define dBUF \ |
48 | #endif |
51 | char *aio_buf; \ |
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52 | LOCK (wrklock); \ |
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53 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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54 | UNLOCK (wrklock); \ |
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55 | if (!aio_buf) \ |
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56 | return -1; |
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57 | |
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58 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
49 | |
59 | |
50 | enum { |
60 | enum { |
51 | REQ_QUIT, |
61 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
62 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
63 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
54 | REQ_SENDFILE, |
64 | REQ_SENDFILE, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
65 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
66 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
67 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
58 | REQ_READDIR, |
68 | REQ_MKNOD, REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
69 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
60 | REQ_SLEEP, |
70 | REQ_GROUP, REQ_NOP, |
61 | REQ_GROUP, |
71 | REQ_BUSY, |
62 | }; |
72 | }; |
63 | |
73 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
74 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
75 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
76 | |
67 | typedef struct aio_cb |
77 | typedef struct aio_cb |
68 | { |
78 | { |
69 | struct aio_cb *grp, *grp_prev, *grp_next; |
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70 | |
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71 | struct aio_cb *volatile next; |
79 | struct aio_cb *volatile next; |
72 | |
80 | |
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81 | SV *callback, *fh; |
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82 | SV *sv1, *sv2; |
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83 | void *ptr1, *ptr2; |
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84 | off_t offs; |
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85 | size_t size; |
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86 | ssize_t result; |
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87 | |
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88 | STRLEN stroffset; |
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89 | int type; |
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90 | int int1, int2; |
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91 | int errorno; |
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92 | mode_t mode; /* open */ |
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93 | |
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94 | unsigned char flags; |
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95 | unsigned char pri; |
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96 | |
73 | SV *self; /* the perl counterpart of this request, if any */ |
97 | SV *self; /* the perl counterpart of this request, if any */ |
74 | |
98 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
75 | SV *data, *callback; |
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76 | SV *fh, *fh2; |
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77 | void *dataptr, *data2ptr; |
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78 | Stat_t *statdata; |
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79 | off_t offset; |
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80 | size_t length; |
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81 | ssize_t result; |
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82 | |
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83 | int type; |
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84 | int fd, fd2; |
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85 | int errorno; |
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86 | STRLEN dataoffset; |
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87 | mode_t mode; /* open */ |
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88 | unsigned char cancelled; |
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89 | } aio_cb; |
99 | } aio_cb; |
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100 | |
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101 | enum { |
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102 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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103 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
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104 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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105 | }; |
90 | |
106 | |
91 | typedef aio_cb *aio_req; |
107 | typedef aio_cb *aio_req; |
92 | typedef aio_cb *aio_req_ornot; |
108 | typedef aio_cb *aio_req_ornot; |
93 | |
109 | |
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110 | enum { |
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111 | PRI_MIN = -4, |
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112 | PRI_MAX = 4, |
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113 | |
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114 | DEFAULT_PRI = 0, |
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115 | PRI_BIAS = -PRI_MIN, |
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116 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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117 | }; |
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118 | |
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119 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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120 | |
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121 | static unsigned int max_poll_time = 0; |
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122 | static unsigned int max_poll_reqs = 0; |
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123 | |
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124 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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125 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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126 | { |
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127 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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128 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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129 | } |
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130 | |
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131 | static thread_t main_tid; |
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132 | static int main_sig; |
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133 | static int block_sig_level; |
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134 | |
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135 | void block_sig () |
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136 | { |
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137 | sigset_t ss; |
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138 | |
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139 | if (block_sig_level++) |
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140 | return; |
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141 | |
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142 | if (!main_sig) |
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143 | return; |
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144 | |
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145 | sigemptyset (&ss); |
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146 | sigaddset (&ss, main_sig); |
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147 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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148 | } |
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149 | |
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150 | void unblock_sig () |
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151 | { |
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152 | sigset_t ss; |
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153 | |
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154 | if (--block_sig_level) |
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155 | return; |
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156 | |
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157 | if (!main_sig) |
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158 | return; |
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159 | |
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160 | sigemptyset (&ss); |
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161 | sigaddset (&ss, main_sig); |
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162 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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163 | } |
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164 | |
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165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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166 | |
94 | static int started, wanted; |
167 | static unsigned int started, idle, wanted; |
95 | static volatile int nreqs; |
168 | |
96 | static int max_outstanding = 1<<30; |
169 | /* worker threads management */ |
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170 | static mutex_t wrklock = MUTEX_INIT; |
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171 | |
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172 | typedef struct worker { |
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173 | /* locked by wrklock */ |
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174 | struct worker *prev, *next; |
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175 | |
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176 | thread_t tid; |
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177 | |
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178 | /* locked by reslock, reqlock or wrklock */ |
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179 | aio_req req; /* currently processed request */ |
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180 | void *dbuf; |
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181 | DIR *dirp; |
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182 | } worker; |
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183 | |
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184 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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185 | |
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186 | static void worker_clear (worker *wrk) |
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187 | { |
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188 | if (wrk->dirp) |
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189 | { |
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190 | closedir (wrk->dirp); |
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191 | wrk->dirp = 0; |
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192 | } |
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193 | |
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194 | if (wrk->dbuf) |
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195 | { |
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196 | free (wrk->dbuf); |
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197 | wrk->dbuf = 0; |
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198 | } |
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199 | } |
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200 | |
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201 | static void worker_free (worker *wrk) |
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202 | { |
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203 | wrk->next->prev = wrk->prev; |
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204 | wrk->prev->next = wrk->next; |
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205 | |
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206 | free (wrk); |
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207 | } |
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208 | |
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209 | static volatile unsigned int nreqs, nready, npending; |
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210 | static volatile unsigned int max_idle = 4; |
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211 | static volatile unsigned int max_outstanding = 0xffffffff; |
97 | static int respipe [2]; |
212 | static int respipe [2]; |
98 | |
213 | |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
214 | static mutex_t reslock = MUTEX_INIT; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
215 | static mutex_t reqlock = MUTEX_INIT; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
216 | static cond_t reqwait = COND_INIT; |
102 | |
217 | |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
218 | #if WORDACCESS_UNSAFE |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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105 | |
219 | |
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220 | static unsigned int get_nready () |
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221 | { |
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222 | unsigned int retval; |
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223 | |
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224 | LOCK (reqlock); |
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225 | retval = nready; |
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226 | UNLOCK (reqlock); |
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227 | |
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228 | return retval; |
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229 | } |
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230 | |
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231 | static unsigned int get_npending () |
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232 | { |
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233 | unsigned int retval; |
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234 | |
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235 | LOCK (reslock); |
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236 | retval = npending; |
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237 | UNLOCK (reslock); |
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238 | |
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239 | return retval; |
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240 | } |
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241 | |
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242 | static unsigned int get_nthreads () |
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243 | { |
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244 | unsigned int retval; |
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245 | |
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246 | LOCK (wrklock); |
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247 | retval = started; |
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248 | UNLOCK (wrklock); |
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249 | |
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250 | return retval; |
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251 | } |
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252 | |
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253 | #else |
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254 | |
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255 | # define get_nready() nready |
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256 | # define get_npending() npending |
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257 | # define get_nthreads() started |
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258 | |
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259 | #endif |
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260 | |
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261 | /* |
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262 | * a somewhat faster data structure might be nice, but |
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263 | * with 8 priorities this actually needs <20 insns |
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264 | * per shift, the most expensive operation. |
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265 | */ |
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266 | typedef struct { |
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267 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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268 | int size; |
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269 | } reqq; |
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270 | |
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271 | static reqq req_queue; |
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272 | static reqq res_queue; |
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273 | |
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274 | int reqq_push (reqq *q, aio_req req) |
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275 | { |
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276 | int pri = req->pri; |
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277 | req->next = 0; |
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278 | |
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279 | if (q->qe[pri]) |
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280 | { |
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281 | q->qe[pri]->next = req; |
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282 | q->qe[pri] = req; |
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283 | } |
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284 | else |
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285 | q->qe[pri] = q->qs[pri] = req; |
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286 | |
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287 | return q->size++; |
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288 | } |
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289 | |
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290 | aio_req reqq_shift (reqq *q) |
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291 | { |
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292 | int pri; |
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293 | |
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294 | if (!q->size) |
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295 | return 0; |
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296 | |
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297 | --q->size; |
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298 | |
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299 | for (pri = NUM_PRI; pri--; ) |
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300 | { |
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301 | aio_req req = q->qs[pri]; |
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302 | |
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303 | if (req) |
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304 | { |
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305 | if (!(q->qs[pri] = req->next)) |
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306 | q->qe[pri] = 0; |
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307 | |
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308 | return req; |
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309 | } |
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310 | } |
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311 | |
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312 | abort (); |
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313 | } |
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314 | |
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315 | static int poll_cb (); |
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316 | static int req_invoke (aio_req req); |
106 | static void req_free (aio_req req); |
317 | static void req_free (aio_req req); |
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318 | static void req_cancel (aio_req req); |
107 | |
319 | |
108 | /* must be called at most once */ |
320 | /* must be called at most once */ |
109 | static SV *req_sv (aio_req req, const char *klass) |
321 | static SV *req_sv (aio_req req, const char *klass) |
110 | { |
322 | { |
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323 | if (!req->self) |
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324 | { |
111 | req->self = (SV *)newHV (); |
325 | req->self = (SV *)newHV (); |
112 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
326 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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327 | } |
113 | |
328 | |
114 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
329 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
115 | } |
330 | } |
116 | |
331 | |
117 | static aio_req SvAIO_REQ (SV *sv) |
332 | static aio_req SvAIO_REQ (SV *sv) |
118 | { |
333 | { |
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334 | MAGIC *mg; |
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335 | |
119 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
336 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
120 | croak ("object of class " AIO_REQ_KLASS " expected"); |
337 | croak ("object of class " AIO_REQ_KLASS " expected"); |
121 | |
338 | |
122 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
339 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
123 | |
340 | |
124 | return mg ? (aio_req)mg->mg_ptr : 0; |
341 | return mg ? (aio_req)mg->mg_ptr : 0; |
125 | } |
342 | } |
126 | |
343 | |
127 | static void poll_wait () |
344 | static void aio_grp_feed (aio_req grp) |
128 | { |
345 | { |
129 | if (nreqs && !ress) |
346 | block_sig (); |
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347 | |
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348 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
130 | { |
349 | { |
131 | fd_set rfd; |
350 | int old_len = grp->size; |
132 | FD_ZERO(&rfd); |
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133 | FD_SET(respipe [0], &rfd); |
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134 | |
351 | |
135 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
352 | if (grp->sv2 && SvOK (grp->sv2)) |
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353 | { |
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354 | dSP; |
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355 | |
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356 | ENTER; |
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357 | SAVETMPS; |
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358 | PUSHMARK (SP); |
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359 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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360 | PUTBACK; |
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361 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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362 | SPAGAIN; |
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363 | FREETMPS; |
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364 | LEAVE; |
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365 | } |
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366 | |
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367 | /* stop if no progress has been made */ |
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368 | if (old_len == grp->size) |
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369 | { |
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370 | SvREFCNT_dec (grp->sv2); |
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371 | grp->sv2 = 0; |
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372 | break; |
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373 | } |
136 | } |
374 | } |
137 | } |
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138 | |
375 | |
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376 | unblock_sig (); |
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377 | } |
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378 | |
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379 | static void aio_grp_dec (aio_req grp) |
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380 | { |
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381 | --grp->size; |
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382 | |
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383 | /* call feeder, if applicable */ |
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384 | aio_grp_feed (grp); |
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385 | |
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386 | /* finish, if done */ |
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387 | if (!grp->size && grp->int1) |
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388 | { |
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389 | block_sig (); |
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390 | |
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391 | if (!req_invoke (grp)) |
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392 | { |
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393 | req_free (grp); |
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394 | unblock_sig (); |
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395 | croak (0); |
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396 | } |
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397 | |
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398 | req_free (grp); |
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399 | unblock_sig (); |
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400 | } |
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401 | } |
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402 | |
139 | static void req_invoke (aio_req req) |
403 | static int req_invoke (aio_req req) |
140 | { |
404 | { |
141 | dSP; |
405 | dSP; |
142 | int errorno = errno; |
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143 | |
406 | |
144 | if (req->cancelled || !SvOK (req->callback)) |
407 | if (req->flags & FLAG_SV1_RO_OFF) |
145 | return; |
408 | SvREADONLY_off (req->sv1); |
146 | |
409 | |
147 | errno = req->errorno; |
410 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
148 | |
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149 | ENTER; |
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150 | PUSHMARK (SP); |
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151 | |
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152 | switch (req->type) |
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153 | { |
411 | { |
154 | case REQ_READDIR: |
412 | ENTER; |
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413 | SAVETMPS; |
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414 | PUSHMARK (SP); |
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415 | EXTEND (SP, 1); |
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416 | |
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417 | switch (req->type) |
155 | { |
418 | { |
156 | SV *rv = &PL_sv_undef; |
419 | case REQ_READDIR: |
157 | |
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158 | if (req->result >= 0) |
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159 | { |
420 | { |
160 | char *buf = req->data2ptr; |
421 | SV *rv = &PL_sv_undef; |
161 | AV *av = newAV (); |
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162 | |
422 | |
163 | while (req->result) |
423 | if (req->result >= 0) |
164 | { |
424 | { |
|
|
425 | int i; |
|
|
426 | char *buf = req->ptr2; |
|
|
427 | AV *av = newAV (); |
|
|
428 | |
|
|
429 | av_extend (av, req->result - 1); |
|
|
430 | |
|
|
431 | for (i = 0; i < req->result; ++i) |
|
|
432 | { |
165 | SV *sv = newSVpv (buf, 0); |
433 | SV *sv = newSVpv (buf, 0); |
166 | |
434 | |
167 | av_push (av, sv); |
435 | av_store (av, i, sv); |
168 | buf += SvCUR (sv) + 1; |
436 | buf += SvCUR (sv) + 1; |
169 | req->result--; |
437 | } |
|
|
438 | |
|
|
439 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
170 | } |
440 | } |
171 | |
441 | |
172 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
442 | PUSHs (rv); |
173 | } |
443 | } |
|
|
444 | break; |
174 | |
445 | |
|
|
446 | case REQ_OPEN: |
|
|
447 | { |
|
|
448 | /* convert fd to fh */ |
|
|
449 | SV *fh; |
|
|
450 | |
|
|
451 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
452 | PUTBACK; |
|
|
453 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
454 | SPAGAIN; |
|
|
455 | |
|
|
456 | fh = POPs; |
|
|
457 | PUSHMARK (SP); |
175 | XPUSHs (rv); |
458 | XPUSHs (fh); |
|
|
459 | } |
|
|
460 | break; |
|
|
461 | |
|
|
462 | case REQ_GROUP: |
|
|
463 | req->int1 = 2; /* mark group as finished */ |
|
|
464 | |
|
|
465 | if (req->sv1) |
|
|
466 | { |
|
|
467 | int i; |
|
|
468 | AV *av = (AV *)req->sv1; |
|
|
469 | |
|
|
470 | EXTEND (SP, AvFILL (av) + 1); |
|
|
471 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
472 | PUSHs (*av_fetch (av, i, 0)); |
|
|
473 | } |
|
|
474 | break; |
|
|
475 | |
|
|
476 | case REQ_NOP: |
|
|
477 | case REQ_BUSY: |
|
|
478 | break; |
|
|
479 | |
|
|
480 | case REQ_READLINK: |
|
|
481 | if (req->result > 0) |
|
|
482 | { |
|
|
483 | SvCUR_set (req->sv1, req->result); |
|
|
484 | *SvEND (req->sv1) = 0; |
|
|
485 | PUSHs (req->sv1); |
|
|
486 | } |
|
|
487 | break; |
|
|
488 | |
|
|
489 | case REQ_STAT: |
|
|
490 | case REQ_LSTAT: |
|
|
491 | case REQ_FSTAT: |
|
|
492 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
493 | PL_laststatval = req->result; |
|
|
494 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
495 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
496 | break; |
|
|
497 | |
|
|
498 | case REQ_READ: |
|
|
499 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
500 | *SvEND (req->sv1) = 0; |
|
|
501 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
502 | break; |
|
|
503 | |
|
|
504 | default: |
|
|
505 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
506 | break; |
176 | } |
507 | } |
177 | break; |
|
|
178 | |
508 | |
179 | case REQ_OPEN: |
509 | errno = req->errorno; |
180 | { |
|
|
181 | /* convert fd to fh */ |
|
|
182 | SV *fh; |
|
|
183 | |
510 | |
184 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
185 | PUTBACK; |
511 | PUTBACK; |
186 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
512 | call_sv (req->callback, G_VOID | G_EVAL); |
187 | SPAGAIN; |
513 | SPAGAIN; |
188 | |
514 | |
189 | fh = SvREFCNT_inc (POPs); |
515 | FREETMPS; |
190 | |
516 | LEAVE; |
191 | PUSHMARK (SP); |
|
|
192 | XPUSHs (sv_2mortal (fh)); |
|
|
193 | } |
|
|
194 | break; |
|
|
195 | |
|
|
196 | case REQ_SLEEP: |
|
|
197 | case REQ_GROUP: |
|
|
198 | break; |
|
|
199 | |
|
|
200 | default: |
|
|
201 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
202 | break; |
|
|
203 | } |
517 | } |
204 | |
518 | |
205 | |
|
|
206 | PUTBACK; |
|
|
207 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
208 | SPAGAIN; |
|
|
209 | |
|
|
210 | if (SvTRUE (ERRSV)) |
|
|
211 | { |
|
|
212 | req_free (req); |
|
|
213 | croak (0); |
|
|
214 | } |
|
|
215 | |
|
|
216 | LEAVE; |
|
|
217 | |
|
|
218 | errno = errorno; |
|
|
219 | } |
|
|
220 | |
|
|
221 | static void req_free (aio_req req) |
|
|
222 | { |
|
|
223 | if (req->grp) |
519 | if (req->grp) |
224 | { |
520 | { |
225 | aio_req grp = req->grp; |
521 | aio_req grp = req->grp; |
226 | |
522 | |
227 | /* unlink request */ |
523 | /* unlink request */ |
228 | req->grp_next->grp_prev = req->grp_prev; |
524 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
229 | req->grp_prev->grp_next = req->grp_next; |
525 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
230 | |
526 | |
231 | if (grp->grp_next == grp && grp->fd) |
527 | if (grp->grp_first == req) |
232 | { |
528 | grp->grp_first = req->grp_next; |
233 | req_invoke (grp); |
529 | |
234 | req_free (grp); |
530 | aio_grp_dec (grp); |
235 | } |
|
|
236 | } |
531 | } |
237 | |
532 | |
|
|
533 | return !SvTRUE (ERRSV); |
|
|
534 | } |
|
|
535 | |
|
|
536 | static void req_free (aio_req req) |
|
|
537 | { |
238 | if (req->self) |
538 | if (req->self) |
239 | { |
539 | { |
240 | sv_unmagic (req->self, PERL_MAGIC_ext); |
540 | sv_unmagic (req->self, PERL_MAGIC_ext); |
241 | SvREFCNT_dec (req->self); |
541 | SvREFCNT_dec (req->self); |
242 | } |
542 | } |
243 | |
543 | |
244 | if (req->data) |
|
|
245 | SvREFCNT_dec (req->data); |
|
|
246 | |
|
|
247 | if (req->fh) |
|
|
248 | SvREFCNT_dec (req->fh); |
544 | SvREFCNT_dec (req->fh); |
249 | |
545 | SvREFCNT_dec (req->sv1); |
250 | if (req->fh2) |
|
|
251 | SvREFCNT_dec (req->fh2); |
546 | SvREFCNT_dec (req->sv2); |
252 | |
|
|
253 | if (req->statdata) |
|
|
254 | Safefree (req->statdata); |
|
|
255 | |
|
|
256 | if (req->callback) |
|
|
257 | SvREFCNT_dec (req->callback); |
547 | SvREFCNT_dec (req->callback); |
258 | |
548 | |
259 | if (req->type == REQ_READDIR && req->result >= 0) |
549 | if (req->flags & FLAG_PTR2_FREE) |
260 | free (req->data2ptr); |
550 | free (req->ptr2); |
261 | |
551 | |
262 | Safefree (req); |
552 | Safefree (req); |
263 | } |
553 | } |
264 | |
554 | |
|
|
555 | static void req_cancel_subs (aio_req grp) |
|
|
556 | { |
|
|
557 | aio_req sub; |
|
|
558 | |
|
|
559 | if (grp->type != REQ_GROUP) |
|
|
560 | return; |
|
|
561 | |
|
|
562 | SvREFCNT_dec (grp->sv2); |
|
|
563 | grp->sv2 = 0; |
|
|
564 | |
|
|
565 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
566 | req_cancel (sub); |
|
|
567 | } |
|
|
568 | |
265 | static void req_cancel (aio_req req) |
569 | static void req_cancel (aio_req req) |
266 | { |
570 | { |
267 | req->cancelled = 1; |
571 | req->flags |= FLAG_CANCELLED; |
268 | |
572 | |
269 | if (req->type == REQ_GROUP) |
573 | req_cancel_subs (req); |
|
|
574 | } |
|
|
575 | |
|
|
576 | static void *aio_proc(void *arg); |
|
|
577 | |
|
|
578 | static void start_thread (void) |
|
|
579 | { |
|
|
580 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
581 | |
|
|
582 | if (!wrk) |
|
|
583 | croak ("unable to allocate worker thread data"); |
|
|
584 | |
|
|
585 | LOCK (wrklock); |
|
|
586 | |
|
|
587 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
270 | { |
588 | { |
271 | aio_req sub; |
589 | wrk->prev = &wrk_first; |
|
|
590 | wrk->next = wrk_first.next; |
|
|
591 | wrk_first.next->prev = wrk; |
|
|
592 | wrk_first.next = wrk; |
|
|
593 | ++started; |
|
|
594 | } |
|
|
595 | else |
|
|
596 | free (wrk); |
272 | |
597 | |
273 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
598 | UNLOCK (wrklock); |
274 | req_cancel (sub); |
599 | } |
|
|
600 | |
|
|
601 | static void maybe_start_thread () |
|
|
602 | { |
|
|
603 | if (get_nthreads () >= wanted) |
|
|
604 | return; |
|
|
605 | |
|
|
606 | /* todo: maybe use idle here, but might be less exact */ |
|
|
607 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
608 | return; |
|
|
609 | |
|
|
610 | start_thread (); |
|
|
611 | } |
|
|
612 | |
|
|
613 | static void req_send (aio_req req) |
|
|
614 | { |
|
|
615 | block_sig (); |
|
|
616 | |
|
|
617 | ++nreqs; |
|
|
618 | |
|
|
619 | LOCK (reqlock); |
|
|
620 | ++nready; |
|
|
621 | reqq_push (&req_queue, req); |
|
|
622 | COND_SIGNAL (reqwait); |
|
|
623 | UNLOCK (reqlock); |
|
|
624 | |
|
|
625 | unblock_sig (); |
|
|
626 | |
|
|
627 | maybe_start_thread (); |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void end_thread (void) |
|
|
631 | { |
|
|
632 | aio_req req; |
|
|
633 | |
|
|
634 | Newz (0, req, 1, aio_cb); |
|
|
635 | |
|
|
636 | req->type = REQ_QUIT; |
|
|
637 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
638 | |
|
|
639 | LOCK (reqlock); |
|
|
640 | reqq_push (&req_queue, req); |
|
|
641 | COND_SIGNAL (reqwait); |
|
|
642 | UNLOCK (reqlock); |
|
|
643 | |
|
|
644 | LOCK (wrklock); |
|
|
645 | --started; |
|
|
646 | UNLOCK (wrklock); |
|
|
647 | } |
|
|
648 | |
|
|
649 | static void set_max_idle (int nthreads) |
|
|
650 | { |
|
|
651 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
652 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
653 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
654 | } |
|
|
655 | |
|
|
656 | static void min_parallel (int nthreads) |
|
|
657 | { |
|
|
658 | if (wanted < nthreads) |
|
|
659 | wanted = nthreads; |
|
|
660 | } |
|
|
661 | |
|
|
662 | static void max_parallel (int nthreads) |
|
|
663 | { |
|
|
664 | if (wanted > nthreads) |
|
|
665 | wanted = nthreads; |
|
|
666 | |
|
|
667 | while (started > wanted) |
|
|
668 | end_thread (); |
|
|
669 | } |
|
|
670 | |
|
|
671 | static void poll_wait () |
|
|
672 | { |
|
|
673 | fd_set rfd; |
|
|
674 | |
|
|
675 | while (nreqs) |
|
|
676 | { |
|
|
677 | int size; |
|
|
678 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
679 | size = res_queue.size; |
|
|
680 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
681 | |
|
|
682 | if (size) |
|
|
683 | return; |
|
|
684 | |
|
|
685 | maybe_start_thread (); |
|
|
686 | |
|
|
687 | FD_ZERO(&rfd); |
|
|
688 | FD_SET(respipe [0], &rfd); |
|
|
689 | |
|
|
690 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
275 | } |
691 | } |
276 | } |
692 | } |
277 | |
693 | |
278 | static int poll_cb () |
694 | static int poll_cb () |
279 | { |
695 | { |
280 | dSP; |
696 | dSP; |
281 | int count = 0; |
697 | int count = 0; |
|
|
698 | int maxreqs = max_poll_reqs; |
282 | int do_croak = 0; |
699 | int do_croak = 0; |
|
|
700 | struct timeval tv_start, tv_now; |
283 | aio_req req; |
701 | aio_req req; |
|
|
702 | |
|
|
703 | if (max_poll_time) |
|
|
704 | gettimeofday (&tv_start, 0); |
|
|
705 | |
|
|
706 | block_sig (); |
284 | |
707 | |
285 | for (;;) |
708 | for (;;) |
286 | { |
709 | { |
287 | pthread_mutex_lock (&reslock); |
710 | for (;;) |
288 | req = ress; |
|
|
289 | |
|
|
290 | if (req) |
|
|
291 | { |
711 | { |
292 | ress = req->next; |
712 | maybe_start_thread (); |
293 | |
713 | |
|
|
714 | LOCK (reslock); |
|
|
715 | req = reqq_shift (&res_queue); |
|
|
716 | |
294 | if (!ress) |
717 | if (req) |
295 | { |
718 | { |
|
|
719 | --npending; |
|
|
720 | |
|
|
721 | if (!res_queue.size) |
|
|
722 | { |
296 | /* read any signals sent by the worker threads */ |
723 | /* read any signals sent by the worker threads */ |
297 | char buf [32]; |
724 | char buf [4]; |
298 | while (read (respipe [0], buf, 32) == 32) |
725 | while (read (respipe [0], buf, 4) == 4) |
|
|
726 | ; |
299 | ; |
727 | } |
|
|
728 | } |
300 | |
729 | |
|
|
730 | UNLOCK (reslock); |
|
|
731 | |
|
|
732 | if (!req) |
|
|
733 | break; |
|
|
734 | |
|
|
735 | --nreqs; |
|
|
736 | |
|
|
737 | if (req->type == REQ_GROUP && req->size) |
|
|
738 | { |
|
|
739 | req->int1 = 1; /* mark request as delayed */ |
|
|
740 | continue; |
|
|
741 | } |
|
|
742 | else |
|
|
743 | { |
|
|
744 | if (!req_invoke (req)) |
|
|
745 | { |
|
|
746 | req_free (req); |
|
|
747 | unblock_sig (); |
|
|
748 | croak (0); |
|
|
749 | } |
|
|
750 | |
|
|
751 | count++; |
|
|
752 | } |
|
|
753 | |
|
|
754 | req_free (req); |
|
|
755 | |
|
|
756 | if (maxreqs && !--maxreqs) |
|
|
757 | break; |
|
|
758 | |
|
|
759 | if (max_poll_time) |
|
|
760 | { |
|
|
761 | gettimeofday (&tv_now, 0); |
|
|
762 | |
|
|
763 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
301 | rese = 0; |
764 | break; |
302 | } |
765 | } |
303 | } |
766 | } |
304 | |
767 | |
305 | pthread_mutex_unlock (&reslock); |
768 | if (nreqs <= max_outstanding) |
306 | |
|
|
307 | if (!req) |
|
|
308 | break; |
769 | break; |
309 | |
770 | |
310 | nreqs--; |
771 | poll_wait (); |
311 | |
772 | |
312 | if (req->type == REQ_QUIT) |
773 | ++maxreqs; |
313 | started--; |
|
|
314 | else if (req->type == REQ_GROUP && req->grp_next != req) |
|
|
315 | { |
|
|
316 | req->fd = 1; /* mark request as delayed */ |
|
|
317 | continue; |
|
|
318 | } |
|
|
319 | else |
|
|
320 | { |
|
|
321 | if (req->type == REQ_READ) |
|
|
322 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
323 | |
|
|
324 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
325 | SvREADONLY_off (req->data); |
|
|
326 | |
|
|
327 | if (req->statdata) |
|
|
328 | { |
|
|
329 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
330 | PL_laststatval = req->result; |
|
|
331 | PL_statcache = *(req->statdata); |
|
|
332 | } |
|
|
333 | |
|
|
334 | req_invoke (req); |
|
|
335 | |
|
|
336 | count++; |
|
|
337 | } |
|
|
338 | |
|
|
339 | req_free (req); |
|
|
340 | } |
774 | } |
341 | |
775 | |
|
|
776 | unblock_sig (); |
342 | return count; |
777 | return count; |
343 | } |
|
|
344 | |
|
|
345 | static void *aio_proc(void *arg); |
|
|
346 | |
|
|
347 | static void start_thread (void) |
|
|
348 | { |
|
|
349 | sigset_t fullsigset, oldsigset; |
|
|
350 | pthread_t tid; |
|
|
351 | pthread_attr_t attr; |
|
|
352 | |
|
|
353 | pthread_attr_init (&attr); |
|
|
354 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
355 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
356 | |
|
|
357 | sigfillset (&fullsigset); |
|
|
358 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
359 | |
|
|
360 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
361 | started++; |
|
|
362 | |
|
|
363 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
364 | } |
|
|
365 | |
|
|
366 | static void req_send (aio_req req) |
|
|
367 | { |
|
|
368 | while (started < wanted && nreqs >= started) |
|
|
369 | start_thread (); |
|
|
370 | |
|
|
371 | nreqs++; |
|
|
372 | |
|
|
373 | pthread_mutex_lock (&reqlock); |
|
|
374 | |
|
|
375 | req->next = 0; |
|
|
376 | |
|
|
377 | if (reqe) |
|
|
378 | { |
|
|
379 | reqe->next = req; |
|
|
380 | reqe = req; |
|
|
381 | } |
|
|
382 | else |
|
|
383 | reqe = reqs = req; |
|
|
384 | |
|
|
385 | pthread_cond_signal (&reqwait); |
|
|
386 | pthread_mutex_unlock (&reqlock); |
|
|
387 | |
|
|
388 | if (nreqs > max_outstanding) |
|
|
389 | for (;;) |
|
|
390 | { |
|
|
391 | poll_cb (); |
|
|
392 | |
|
|
393 | if (nreqs <= max_outstanding) |
|
|
394 | break; |
|
|
395 | |
|
|
396 | poll_wait (); |
|
|
397 | } |
|
|
398 | } |
|
|
399 | |
|
|
400 | static void end_thread (void) |
|
|
401 | { |
|
|
402 | aio_req req; |
|
|
403 | Newz (0, req, 1, aio_cb); |
|
|
404 | req->type = REQ_QUIT; |
|
|
405 | |
|
|
406 | req_send (req); |
|
|
407 | } |
|
|
408 | |
|
|
409 | static void min_parallel (int nthreads) |
|
|
410 | { |
|
|
411 | if (wanted < nthreads) |
|
|
412 | wanted = nthreads; |
|
|
413 | } |
|
|
414 | |
|
|
415 | static void max_parallel (int nthreads) |
|
|
416 | { |
|
|
417 | int cur = started; |
|
|
418 | |
|
|
419 | if (wanted > nthreads) |
|
|
420 | wanted = nthreads; |
|
|
421 | |
|
|
422 | while (cur > wanted) |
|
|
423 | { |
|
|
424 | end_thread (); |
|
|
425 | cur--; |
|
|
426 | } |
|
|
427 | |
|
|
428 | while (started > wanted) |
|
|
429 | { |
|
|
430 | poll_wait (); |
|
|
431 | poll_cb (); |
|
|
432 | } |
|
|
433 | } |
778 | } |
434 | |
779 | |
435 | static void create_pipe () |
780 | static void create_pipe () |
436 | { |
781 | { |
437 | if (pipe (respipe)) |
782 | if (pipe (respipe)) |
… | |
… | |
454 | /* |
799 | /* |
455 | * make our pread/pwrite safe against themselves, but not against |
800 | * make our pread/pwrite safe against themselves, but not against |
456 | * normal read/write by using a mutex. slows down execution a lot, |
801 | * normal read/write by using a mutex. slows down execution a lot, |
457 | * but that's your problem, not mine. |
802 | * but that's your problem, not mine. |
458 | */ |
803 | */ |
459 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
804 | static mutex_t preadwritelock = MUTEX_INIT; |
460 | |
805 | |
461 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
806 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
462 | { |
807 | { |
463 | ssize_t res; |
808 | ssize_t res; |
464 | off_t ooffset; |
809 | off_t ooffset; |
465 | |
810 | |
466 | pthread_mutex_lock (&preadwritelock); |
811 | LOCK (preadwritelock); |
467 | ooffset = lseek (fd, 0, SEEK_CUR); |
812 | ooffset = lseek (fd, 0, SEEK_CUR); |
468 | lseek (fd, offset, SEEK_SET); |
813 | lseek (fd, offset, SEEK_SET); |
469 | res = read (fd, buf, count); |
814 | res = read (fd, buf, count); |
470 | lseek (fd, ooffset, SEEK_SET); |
815 | lseek (fd, ooffset, SEEK_SET); |
471 | pthread_mutex_unlock (&preadwritelock); |
816 | UNLOCK (preadwritelock); |
472 | |
817 | |
473 | return res; |
818 | return res; |
474 | } |
819 | } |
475 | |
820 | |
476 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
821 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
477 | { |
822 | { |
478 | ssize_t res; |
823 | ssize_t res; |
479 | off_t ooffset; |
824 | off_t ooffset; |
480 | |
825 | |
481 | pthread_mutex_lock (&preadwritelock); |
826 | LOCK (preadwritelock); |
482 | ooffset = lseek (fd, 0, SEEK_CUR); |
827 | ooffset = lseek (fd, 0, SEEK_CUR); |
483 | lseek (fd, offset, SEEK_SET); |
828 | lseek (fd, offset, SEEK_SET); |
484 | res = write (fd, buf, count); |
829 | res = write (fd, buf, count); |
485 | lseek (fd, offset, SEEK_SET); |
830 | lseek (fd, offset, SEEK_SET); |
486 | pthread_mutex_unlock (&preadwritelock); |
831 | UNLOCK (preadwritelock); |
487 | |
832 | |
488 | return res; |
833 | return res; |
489 | } |
834 | } |
490 | #endif |
835 | #endif |
491 | |
836 | |
492 | #if !HAVE_FDATASYNC |
837 | #if !HAVE_FDATASYNC |
493 | # define fdatasync fsync |
838 | # define fdatasync fsync |
494 | #endif |
839 | #endif |
495 | |
840 | |
496 | #if !HAVE_READAHEAD |
841 | #if !HAVE_READAHEAD |
497 | # define readahead aio_readahead |
842 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
498 | |
843 | |
499 | static ssize_t readahead (int fd, off_t offset, size_t count) |
844 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
500 | { |
845 | { |
501 | char readahead_buf[4096]; |
846 | dBUF; |
502 | |
847 | |
503 | while (count > 0) |
848 | while (count > 0) |
504 | { |
849 | { |
505 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
850 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
506 | |
851 | |
507 | pread (fd, readahead_buf, len, offset); |
852 | pread (fd, aio_buf, len, offset); |
508 | offset += len; |
853 | offset += len; |
509 | count -= len; |
854 | count -= len; |
510 | } |
855 | } |
511 | |
856 | |
512 | errno = 0; |
857 | errno = 0; |
513 | } |
858 | } |
|
|
859 | |
514 | #endif |
860 | #endif |
515 | |
861 | |
516 | #if !HAVE_READDIR_R |
862 | #if !HAVE_READDIR_R |
517 | # define readdir_r aio_readdir_r |
863 | # define readdir_r aio_readdir_r |
518 | |
864 | |
519 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
865 | static mutex_t readdirlock = MUTEX_INIT; |
520 | |
866 | |
521 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
867 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
522 | { |
868 | { |
523 | struct dirent *e; |
869 | struct dirent *e; |
524 | int errorno; |
870 | int errorno; |
525 | |
871 | |
526 | pthread_mutex_lock (&readdirlock); |
872 | LOCK (readdirlock); |
527 | |
873 | |
528 | e = readdir (dirp); |
874 | e = readdir (dirp); |
529 | errorno = errno; |
875 | errorno = errno; |
530 | |
876 | |
531 | if (e) |
877 | if (e) |
… | |
… | |
534 | strcpy (ent->d_name, e->d_name); |
880 | strcpy (ent->d_name, e->d_name); |
535 | } |
881 | } |
536 | else |
882 | else |
537 | *res = 0; |
883 | *res = 0; |
538 | |
884 | |
539 | pthread_mutex_unlock (&readdirlock); |
885 | UNLOCK (readdirlock); |
540 | |
886 | |
541 | errno = errorno; |
887 | errno = errorno; |
542 | return e ? 0 : -1; |
888 | return e ? 0 : -1; |
543 | } |
889 | } |
544 | #endif |
890 | #endif |
545 | |
891 | |
546 | /* sendfile always needs emulation */ |
892 | /* sendfile always needs emulation */ |
547 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
893 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
548 | { |
894 | { |
549 | ssize_t res; |
895 | ssize_t res; |
550 | |
896 | |
551 | if (!count) |
897 | if (!count) |
552 | return 0; |
898 | return 0; |
… | |
… | |
563 | { |
909 | { |
564 | off_t sbytes; |
910 | off_t sbytes; |
565 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
911 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
566 | |
912 | |
567 | if (res < 0 && sbytes) |
913 | if (res < 0 && sbytes) |
568 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
914 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
569 | res = sbytes; |
915 | res = sbytes; |
570 | } |
916 | } |
571 | |
917 | |
572 | # elif __hpux |
918 | # elif __hpux |
573 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
919 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
601 | #endif |
947 | #endif |
602 | ) |
948 | ) |
603 | ) |
949 | ) |
604 | { |
950 | { |
605 | /* emulate sendfile. this is a major pain in the ass */ |
951 | /* emulate sendfile. this is a major pain in the ass */ |
606 | char buf[4096]; |
952 | dBUF; |
|
|
953 | |
607 | res = 0; |
954 | res = 0; |
608 | |
955 | |
609 | while (count) |
956 | while (count) |
610 | { |
957 | { |
611 | ssize_t cnt; |
958 | ssize_t cnt; |
612 | |
959 | |
613 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
960 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
614 | |
961 | |
615 | if (cnt <= 0) |
962 | if (cnt <= 0) |
616 | { |
963 | { |
617 | if (cnt && !res) res = -1; |
964 | if (cnt && !res) res = -1; |
618 | break; |
965 | break; |
619 | } |
966 | } |
620 | |
967 | |
621 | cnt = write (ofd, buf, cnt); |
968 | cnt = write (ofd, aio_buf, cnt); |
622 | |
969 | |
623 | if (cnt <= 0) |
970 | if (cnt <= 0) |
624 | { |
971 | { |
625 | if (cnt && !res) res = -1; |
972 | if (cnt && !res) res = -1; |
626 | break; |
973 | break; |
… | |
… | |
634 | |
981 | |
635 | return res; |
982 | return res; |
636 | } |
983 | } |
637 | |
984 | |
638 | /* read a full directory */ |
985 | /* read a full directory */ |
639 | static int scandir_ (const char *path, void **namesp) |
986 | static void scandir_ (aio_req req, worker *self) |
640 | { |
987 | { |
641 | DIR *dirp = opendir (path); |
988 | DIR *dirp; |
642 | union |
989 | union |
643 | { |
990 | { |
644 | struct dirent d; |
991 | struct dirent d; |
645 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
992 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
646 | } u; |
993 | } *u; |
647 | struct dirent *entp; |
994 | struct dirent *entp; |
648 | char *name, *names; |
995 | char *name, *names; |
649 | int memlen = 4096; |
996 | int memlen = 4096; |
650 | int memofs = 0; |
997 | int memofs = 0; |
651 | int res = 0; |
998 | int res = 0; |
652 | int errorno; |
999 | int errorno; |
653 | |
1000 | |
654 | if (!dirp) |
1001 | LOCK (wrklock); |
655 | return -1; |
1002 | self->dirp = dirp = opendir (req->ptr1); |
656 | |
1003 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1004 | req->flags |= FLAG_PTR2_FREE; |
657 | names = malloc (memlen); |
1005 | req->ptr2 = names = malloc (memlen); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
|
|
1008 | if (dirp && u && names) |
|
|
1009 | for (;;) |
|
|
1010 | { |
|
|
1011 | errno = 0; |
|
|
1012 | readdir_r (dirp, &u->d, &entp); |
|
|
1013 | |
|
|
1014 | if (!entp) |
|
|
1015 | break; |
|
|
1016 | |
|
|
1017 | name = entp->d_name; |
|
|
1018 | |
|
|
1019 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1020 | { |
|
|
1021 | int len = strlen (name) + 1; |
|
|
1022 | |
|
|
1023 | res++; |
|
|
1024 | |
|
|
1025 | while (memofs + len > memlen) |
|
|
1026 | { |
|
|
1027 | memlen *= 2; |
|
|
1028 | LOCK (wrklock); |
|
|
1029 | req->ptr2 = names = realloc (names, memlen); |
|
|
1030 | UNLOCK (wrklock); |
|
|
1031 | |
|
|
1032 | if (!names) |
|
|
1033 | break; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | memcpy (names + memofs, name, len); |
|
|
1037 | memofs += len; |
|
|
1038 | } |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | if (errno) |
|
|
1042 | res = -1; |
|
|
1043 | |
|
|
1044 | req->result = res; |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | /*****************************************************************************/ |
|
|
1048 | |
|
|
1049 | static void *aio_proc (void *thr_arg) |
|
|
1050 | { |
|
|
1051 | aio_req req; |
|
|
1052 | struct timespec ts; |
|
|
1053 | worker *self = (worker *)thr_arg; |
|
|
1054 | |
|
|
1055 | /* try to distribute timeouts somewhat evenly */ |
|
|
1056 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1057 | * (1000000000UL / 1024UL); |
658 | |
1058 | |
659 | for (;;) |
1059 | for (;;) |
660 | { |
1060 | { |
661 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1061 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
662 | |
1062 | |
663 | if (!entp) |
1063 | LOCK (reqlock); |
664 | break; |
|
|
665 | |
|
|
666 | name = entp->d_name; |
|
|
667 | |
|
|
668 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
669 | { |
|
|
670 | int len = strlen (name) + 1; |
|
|
671 | |
|
|
672 | res++; |
|
|
673 | |
|
|
674 | while (memofs + len > memlen) |
|
|
675 | { |
|
|
676 | memlen *= 2; |
|
|
677 | names = realloc (names, memlen); |
|
|
678 | if (!names) |
|
|
679 | break; |
|
|
680 | } |
|
|
681 | |
|
|
682 | memcpy (names + memofs, name, len); |
|
|
683 | memofs += len; |
|
|
684 | } |
|
|
685 | } |
|
|
686 | |
|
|
687 | errorno = errno; |
|
|
688 | closedir (dirp); |
|
|
689 | |
|
|
690 | if (errorno) |
|
|
691 | { |
|
|
692 | free (names); |
|
|
693 | errno = errorno; |
|
|
694 | res = -1; |
|
|
695 | } |
|
|
696 | |
|
|
697 | *namesp = (void *)names; |
|
|
698 | return res; |
|
|
699 | } |
|
|
700 | |
|
|
701 | /*****************************************************************************/ |
|
|
702 | |
|
|
703 | static void *aio_proc (void *thr_arg) |
|
|
704 | { |
|
|
705 | aio_req req; |
|
|
706 | int type; |
|
|
707 | |
|
|
708 | do |
|
|
709 | { |
|
|
710 | pthread_mutex_lock (&reqlock); |
|
|
711 | |
1064 | |
712 | for (;;) |
1065 | for (;;) |
713 | { |
1066 | { |
714 | req = reqs; |
1067 | self->req = req = reqq_shift (&req_queue); |
715 | |
|
|
716 | if (reqs) |
|
|
717 | { |
|
|
718 | reqs = reqs->next; |
|
|
719 | if (!reqs) reqe = 0; |
|
|
720 | } |
|
|
721 | |
1068 | |
722 | if (req) |
1069 | if (req) |
723 | break; |
1070 | break; |
724 | |
1071 | |
725 | pthread_cond_wait (&reqwait, &reqlock); |
1072 | ++idle; |
|
|
1073 | |
|
|
1074 | if (COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1075 | == ETIMEDOUT) |
|
|
1076 | { |
|
|
1077 | if (idle > max_idle) |
|
|
1078 | { |
|
|
1079 | --idle; |
|
|
1080 | UNLOCK (reqlock); |
|
|
1081 | LOCK (wrklock); |
|
|
1082 | --started; |
|
|
1083 | UNLOCK (wrklock); |
|
|
1084 | goto quit; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1088 | COND_WAIT (reqwait, reqlock); |
|
|
1089 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | --idle; |
726 | } |
1093 | } |
727 | |
1094 | |
728 | pthread_mutex_unlock (&reqlock); |
1095 | --nready; |
|
|
1096 | |
|
|
1097 | UNLOCK (reqlock); |
729 | |
1098 | |
730 | errno = 0; /* strictly unnecessary */ |
1099 | errno = 0; /* strictly unnecessary */ |
731 | |
1100 | |
732 | if (!req->cancelled) |
1101 | if (!(req->flags & FLAG_CANCELLED)) |
733 | switch (req->type) |
1102 | switch (req->type) |
734 | { |
1103 | { |
735 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1104 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
736 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1105 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
737 | |
1106 | |
738 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1107 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
739 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1108 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
740 | |
1109 | |
741 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1110 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
742 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1111 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
743 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1112 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
744 | |
1113 | |
745 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1114 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
746 | case REQ_CLOSE: req->result = close (req->fd); break; |
1115 | case REQ_CLOSE: req->result = close (req->int1); break; |
747 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1116 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
748 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1117 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1118 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
749 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1119 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
750 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1120 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
751 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1121 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1122 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1123 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
752 | |
1124 | |
753 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1125 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
754 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1126 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
755 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1127 | case REQ_READDIR: scandir_ (req, self); break; |
756 | |
1128 | |
757 | case REQ_SLEEP: |
1129 | case REQ_BUSY: |
758 | { |
1130 | { |
759 | struct timeval tv; |
1131 | struct timeval tv; |
760 | |
1132 | |
761 | tv.tv_sec = req->fd; |
1133 | tv.tv_sec = req->int1; |
762 | tv.tv_usec = req->fd2; |
1134 | tv.tv_usec = req->int2; |
763 | |
1135 | |
764 | req->result = select (0, 0, 0, 0, &tv); |
1136 | req->result = select (0, 0, 0, 0, &tv); |
765 | } |
1137 | } |
766 | |
1138 | |
|
|
1139 | case REQ_GROUP: |
|
|
1140 | case REQ_NOP: |
|
|
1141 | break; |
|
|
1142 | |
767 | case REQ_QUIT: |
1143 | case REQ_QUIT: |
768 | break; |
1144 | goto quit; |
769 | |
1145 | |
770 | default: |
1146 | default: |
771 | req->result = ENOSYS; |
1147 | req->result = ENOSYS; |
772 | break; |
1148 | break; |
773 | } |
1149 | } |
774 | |
1150 | |
775 | req->errorno = errno; |
1151 | req->errorno = errno; |
776 | |
1152 | |
777 | pthread_mutex_lock (&reslock); |
1153 | LOCK (reslock); |
778 | |
1154 | |
779 | req->next = 0; |
1155 | ++npending; |
780 | |
1156 | |
781 | if (rese) |
1157 | if (!reqq_push (&res_queue, req)) |
782 | { |
1158 | { |
783 | rese->next = req; |
|
|
784 | rese = req; |
|
|
785 | } |
|
|
786 | else |
|
|
787 | { |
|
|
788 | rese = ress = req; |
|
|
789 | |
|
|
790 | /* write a dummy byte to the pipe so fh becomes ready */ |
1159 | /* write a dummy byte to the pipe so fh becomes ready */ |
791 | write (respipe [1], &respipe, 1); |
1160 | write (respipe [1], &respipe, 1); |
|
|
1161 | |
|
|
1162 | /* optionally signal the main thread asynchronously */ |
|
|
1163 | if (main_sig) |
|
|
1164 | pthread_kill (main_tid, main_sig); |
792 | } |
1165 | } |
793 | |
1166 | |
794 | pthread_mutex_unlock (&reslock); |
1167 | self->req = 0; |
|
|
1168 | worker_clear (self); |
|
|
1169 | |
|
|
1170 | UNLOCK (reslock); |
795 | } |
1171 | } |
796 | while (type != REQ_QUIT); |
1172 | |
|
|
1173 | quit: |
|
|
1174 | LOCK (wrklock); |
|
|
1175 | worker_free (self); |
|
|
1176 | UNLOCK (wrklock); |
797 | |
1177 | |
798 | return 0; |
1178 | return 0; |
799 | } |
1179 | } |
800 | |
1180 | |
801 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
802 | |
1182 | |
803 | static void atfork_prepare (void) |
1183 | static void atfork_prepare (void) |
804 | { |
1184 | { |
805 | pthread_mutex_lock (&reqlock); |
1185 | LOCK (wrklock); |
806 | pthread_mutex_lock (&reslock); |
1186 | LOCK (reqlock); |
|
|
1187 | LOCK (reslock); |
807 | #if !HAVE_PREADWRITE |
1188 | #if !HAVE_PREADWRITE |
808 | pthread_mutex_lock (&preadwritelock); |
1189 | LOCK (preadwritelock); |
809 | #endif |
1190 | #endif |
810 | #if !HAVE_READDIR_R |
1191 | #if !HAVE_READDIR_R |
811 | pthread_mutex_lock (&readdirlock); |
1192 | LOCK (readdirlock); |
812 | #endif |
1193 | #endif |
813 | } |
1194 | } |
814 | |
1195 | |
815 | static void atfork_parent (void) |
1196 | static void atfork_parent (void) |
816 | { |
1197 | { |
817 | #if !HAVE_READDIR_R |
1198 | #if !HAVE_READDIR_R |
818 | pthread_mutex_unlock (&readdirlock); |
1199 | UNLOCK (readdirlock); |
819 | #endif |
1200 | #endif |
820 | #if !HAVE_PREADWRITE |
1201 | #if !HAVE_PREADWRITE |
821 | pthread_mutex_unlock (&preadwritelock); |
1202 | UNLOCK (preadwritelock); |
822 | #endif |
1203 | #endif |
823 | pthread_mutex_unlock (&reslock); |
1204 | UNLOCK (reslock); |
824 | pthread_mutex_unlock (&reqlock); |
1205 | UNLOCK (reqlock); |
|
|
1206 | UNLOCK (wrklock); |
825 | } |
1207 | } |
826 | |
1208 | |
827 | static void atfork_child (void) |
1209 | static void atfork_child (void) |
828 | { |
1210 | { |
829 | aio_req prv; |
1211 | aio_req prv; |
830 | |
1212 | |
831 | started = 0; |
1213 | while (prv = reqq_shift (&req_queue)) |
|
|
1214 | req_free (prv); |
832 | |
1215 | |
833 | while (reqs) |
1216 | while (prv = reqq_shift (&res_queue)) |
|
|
1217 | req_free (prv); |
|
|
1218 | |
|
|
1219 | while (wrk_first.next != &wrk_first) |
834 | { |
1220 | { |
835 | prv = reqs; |
1221 | worker *wrk = wrk_first.next; |
836 | reqs = prv->next; |
1222 | |
|
|
1223 | if (wrk->req) |
|
|
1224 | req_free (wrk->req); |
|
|
1225 | |
|
|
1226 | worker_clear (wrk); |
837 | req_free (prv); |
1227 | worker_free (wrk); |
838 | } |
1228 | } |
839 | |
1229 | |
840 | reqs = reqe = 0; |
1230 | started = 0; |
841 | |
1231 | idle = 0; |
842 | while (ress) |
1232 | nreqs = 0; |
843 | { |
1233 | nready = 0; |
844 | prv = ress; |
1234 | npending = 0; |
845 | ress = prv->next; |
|
|
846 | req_free (prv); |
|
|
847 | } |
|
|
848 | |
|
|
849 | ress = rese = 0; |
|
|
850 | |
1235 | |
851 | close (respipe [0]); |
1236 | close (respipe [0]); |
852 | close (respipe [1]); |
1237 | close (respipe [1]); |
853 | create_pipe (); |
1238 | create_pipe (); |
854 | |
1239 | |
855 | atfork_parent (); |
1240 | atfork_parent (); |
856 | } |
1241 | } |
857 | |
1242 | |
858 | #define dREQ \ |
1243 | #define dREQ \ |
859 | aio_req req; \ |
1244 | aio_req req; \ |
|
|
1245 | int req_pri = next_pri; \ |
|
|
1246 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
860 | \ |
1247 | \ |
861 | if (SvOK (callback) && !SvROK (callback)) \ |
1248 | if (SvOK (callback) && !SvROK (callback)) \ |
862 | croak ("callback must be undef or of reference type"); \ |
1249 | croak ("callback must be undef or of reference type"); \ |
863 | \ |
1250 | \ |
864 | Newz (0, req, 1, aio_cb); \ |
1251 | Newz (0, req, 1, aio_cb); \ |
865 | if (!req) \ |
1252 | if (!req) \ |
866 | croak ("out of memory during aio_req allocation"); \ |
1253 | croak ("out of memory during aio_req allocation"); \ |
867 | \ |
1254 | \ |
868 | req->callback = newSVsv (callback) |
1255 | req->callback = newSVsv (callback); \ |
|
|
1256 | req->pri = req_pri |
869 | |
1257 | |
870 | #define REQ_SEND \ |
1258 | #define REQ_SEND \ |
871 | req_send (req); \ |
1259 | req_send (req); \ |
872 | \ |
1260 | \ |
873 | if (GIMME_V != G_VOID) \ |
1261 | if (GIMME_V != G_VOID) \ |
… | |
… | |
878 | PROTOTYPES: ENABLE |
1266 | PROTOTYPES: ENABLE |
879 | |
1267 | |
880 | BOOT: |
1268 | BOOT: |
881 | { |
1269 | { |
882 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1270 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1271 | |
883 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1272 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
884 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1273 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
885 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1274 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1275 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1276 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1277 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1278 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
886 | |
1279 | |
887 | create_pipe (); |
1280 | create_pipe (); |
888 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1281 | ATFORK (atfork_prepare, atfork_parent, atfork_child); |
889 | } |
1282 | } |
890 | |
1283 | |
891 | void |
1284 | void |
892 | min_parallel (nthreads) |
1285 | max_poll_reqs (int nreqs) |
893 | int nthreads |
|
|
894 | PROTOTYPE: $ |
1286 | PROTOTYPE: $ |
|
|
1287 | CODE: |
|
|
1288 | max_poll_reqs = nreqs; |
895 | |
1289 | |
896 | void |
1290 | void |
897 | max_parallel (nthreads) |
1291 | max_poll_time (double nseconds) |
898 | int nthreads |
|
|
899 | PROTOTYPE: $ |
1292 | PROTOTYPE: $ |
|
|
1293 | CODE: |
|
|
1294 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1295 | |
|
|
1296 | void |
|
|
1297 | min_parallel (int nthreads) |
|
|
1298 | PROTOTYPE: $ |
|
|
1299 | |
|
|
1300 | void |
|
|
1301 | max_parallel (int nthreads) |
|
|
1302 | PROTOTYPE: $ |
|
|
1303 | |
|
|
1304 | void |
|
|
1305 | max_idle (int nthreads) |
|
|
1306 | PROTOTYPE: $ |
|
|
1307 | CODE: |
|
|
1308 | set_max_idle (nthreads); |
900 | |
1309 | |
901 | int |
1310 | int |
902 | max_outstanding (nreqs) |
1311 | max_outstanding (int maxreqs) |
903 | int nreqs |
1312 | PROTOTYPE: $ |
904 | PROTOTYPE: $ |
|
|
905 | CODE: |
1313 | CODE: |
906 | RETVAL = max_outstanding; |
1314 | RETVAL = max_outstanding; |
907 | max_outstanding = nreqs; |
1315 | max_outstanding = maxreqs; |
|
|
1316 | OUTPUT: |
|
|
1317 | RETVAL |
908 | |
1318 | |
909 | void |
1319 | void |
910 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1320 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
911 | SV * pathname |
1321 | SV8 * pathname |
912 | int flags |
1322 | int flags |
913 | int mode |
1323 | int mode |
914 | SV * callback |
1324 | SV * callback |
915 | PROTOTYPE: $$$;$ |
1325 | PROTOTYPE: $$$;$ |
916 | PPCODE: |
1326 | PPCODE: |
917 | { |
1327 | { |
918 | dREQ; |
1328 | dREQ; |
919 | |
1329 | |
920 | req->type = REQ_OPEN; |
1330 | req->type = REQ_OPEN; |
921 | req->data = newSVsv (pathname); |
1331 | req->sv1 = newSVsv (pathname); |
922 | req->dataptr = SvPVbyte_nolen (req->data); |
1332 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
923 | req->fd = flags; |
1333 | req->int1 = flags; |
924 | req->mode = mode; |
1334 | req->mode = mode; |
925 | |
1335 | |
926 | REQ_SEND; |
1336 | REQ_SEND; |
927 | } |
1337 | } |
928 | |
1338 | |
… | |
… | |
938 | PPCODE: |
1348 | PPCODE: |
939 | { |
1349 | { |
940 | dREQ; |
1350 | dREQ; |
941 | |
1351 | |
942 | req->type = ix; |
1352 | req->type = ix; |
943 | req->fh = newSVsv (fh); |
1353 | req->fh = newSVsv (fh); |
944 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1354 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
945 | |
1355 | |
946 | REQ_SEND (req); |
1356 | REQ_SEND (req); |
947 | } |
1357 | } |
948 | |
1358 | |
949 | void |
1359 | void |
950 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1360 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
951 | SV * fh |
1361 | SV * fh |
952 | UV offset |
1362 | UV offset |
953 | UV length |
1363 | UV length |
954 | SV * data |
1364 | SV8 * data |
955 | UV dataoffset |
1365 | UV dataoffset |
956 | SV * callback |
1366 | SV * callback |
957 | ALIAS: |
1367 | ALIAS: |
958 | aio_read = REQ_READ |
1368 | aio_read = REQ_READ |
959 | aio_write = REQ_WRITE |
1369 | aio_write = REQ_WRITE |
960 | PROTOTYPE: $$$$$;$ |
1370 | PROTOTYPE: $$$$$;$ |
961 | PPCODE: |
1371 | PPCODE: |
962 | { |
1372 | { |
963 | aio_req req; |
|
|
964 | STRLEN svlen; |
1373 | STRLEN svlen; |
965 | char *svptr = SvPVbyte (data, svlen); |
1374 | char *svptr = SvPVbyte (data, svlen); |
966 | |
1375 | |
967 | SvUPGRADE (data, SVt_PV); |
1376 | SvUPGRADE (data, SVt_PV); |
968 | SvPOK_on (data); |
1377 | SvPOK_on (data); |
… | |
… | |
980 | length = svlen - dataoffset; |
1389 | length = svlen - dataoffset; |
981 | } |
1390 | } |
982 | else |
1391 | else |
983 | { |
1392 | { |
984 | /* read: grow scalar as necessary */ |
1393 | /* read: grow scalar as necessary */ |
985 | svptr = SvGROW (data, length + dataoffset); |
1394 | svptr = SvGROW (data, length + dataoffset + 1); |
986 | } |
1395 | } |
987 | |
1396 | |
988 | if (length < 0) |
1397 | if (length < 0) |
989 | croak ("length must not be negative"); |
1398 | croak ("length must not be negative"); |
990 | |
1399 | |
991 | { |
1400 | { |
992 | dREQ; |
1401 | dREQ; |
993 | |
1402 | |
994 | req->type = ix; |
1403 | req->type = ix; |
995 | req->fh = newSVsv (fh); |
1404 | req->fh = newSVsv (fh); |
996 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1405 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
997 | : IoOFP (sv_2io (fh))); |
1406 | : IoOFP (sv_2io (fh))); |
998 | req->offset = offset; |
1407 | req->offs = offset; |
999 | req->length = length; |
1408 | req->size = length; |
1000 | req->data = SvREFCNT_inc (data); |
1409 | req->sv1 = SvREFCNT_inc (data); |
1001 | req->dataptr = (char *)svptr + dataoffset; |
1410 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1411 | req->stroffset = dataoffset; |
1002 | |
1412 | |
1003 | if (!SvREADONLY (data)) |
1413 | if (!SvREADONLY (data)) |
1004 | { |
1414 | { |
1005 | SvREADONLY_on (data); |
1415 | SvREADONLY_on (data); |
1006 | req->data2ptr = (void *)data; |
1416 | req->flags |= FLAG_SV1_RO_OFF; |
1007 | } |
1417 | } |
1008 | |
1418 | |
1009 | REQ_SEND; |
1419 | REQ_SEND; |
1010 | } |
1420 | } |
|
|
1421 | } |
|
|
1422 | |
|
|
1423 | void |
|
|
1424 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1425 | SV8 * path |
|
|
1426 | SV * callback |
|
|
1427 | PROTOTYPE: $$;$ |
|
|
1428 | PPCODE: |
|
|
1429 | { |
|
|
1430 | SV *data; |
|
|
1431 | dREQ; |
|
|
1432 | |
|
|
1433 | data = newSV (NAME_MAX); |
|
|
1434 | SvPOK_on (data); |
|
|
1435 | |
|
|
1436 | req->type = REQ_READLINK; |
|
|
1437 | req->fh = newSVsv (path); |
|
|
1438 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1439 | req->sv1 = data; |
|
|
1440 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1441 | |
|
|
1442 | REQ_SEND; |
1011 | } |
1443 | } |
1012 | |
1444 | |
1013 | void |
1445 | void |
1014 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1446 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1015 | SV * out_fh |
1447 | SV * out_fh |
… | |
… | |
1021 | PPCODE: |
1453 | PPCODE: |
1022 | { |
1454 | { |
1023 | dREQ; |
1455 | dREQ; |
1024 | |
1456 | |
1025 | req->type = REQ_SENDFILE; |
1457 | req->type = REQ_SENDFILE; |
1026 | req->fh = newSVsv (out_fh); |
1458 | req->fh = newSVsv (out_fh); |
1027 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1459 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1028 | req->fh2 = newSVsv (in_fh); |
1460 | req->sv2 = newSVsv (in_fh); |
1029 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1461 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1030 | req->offset = in_offset; |
1462 | req->offs = in_offset; |
1031 | req->length = length; |
1463 | req->size = length; |
1032 | |
1464 | |
1033 | REQ_SEND; |
1465 | REQ_SEND; |
1034 | } |
1466 | } |
1035 | |
1467 | |
1036 | void |
1468 | void |
… | |
… | |
1043 | PPCODE: |
1475 | PPCODE: |
1044 | { |
1476 | { |
1045 | dREQ; |
1477 | dREQ; |
1046 | |
1478 | |
1047 | req->type = REQ_READAHEAD; |
1479 | req->type = REQ_READAHEAD; |
1048 | req->fh = newSVsv (fh); |
1480 | req->fh = newSVsv (fh); |
1049 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1481 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1050 | req->offset = offset; |
1482 | req->offs = offset; |
1051 | req->length = length; |
1483 | req->size = length; |
1052 | |
1484 | |
1053 | REQ_SEND; |
1485 | REQ_SEND; |
1054 | } |
1486 | } |
1055 | |
1487 | |
1056 | void |
1488 | void |
1057 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1489 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1058 | SV * fh_or_path |
1490 | SV8 * fh_or_path |
1059 | SV * callback |
1491 | SV * callback |
1060 | ALIAS: |
1492 | ALIAS: |
1061 | aio_stat = REQ_STAT |
1493 | aio_stat = REQ_STAT |
1062 | aio_lstat = REQ_LSTAT |
1494 | aio_lstat = REQ_LSTAT |
1063 | PPCODE: |
1495 | PPCODE: |
1064 | { |
1496 | { |
1065 | dREQ; |
1497 | dREQ; |
1066 | |
1498 | |
1067 | New (0, req->statdata, 1, Stat_t); |
1499 | req->ptr2 = malloc (sizeof (Stat_t)); |
1068 | if (!req->statdata) |
1500 | if (!req->ptr2) |
1069 | { |
1501 | { |
1070 | req_free (req); |
1502 | req_free (req); |
1071 | croak ("out of memory during aio_req->statdata allocation"); |
1503 | croak ("out of memory during aio_stat statdata allocation"); |
1072 | } |
1504 | } |
|
|
1505 | |
|
|
1506 | req->flags |= FLAG_PTR2_FREE; |
1073 | |
1507 | |
1074 | if (SvPOK (fh_or_path)) |
1508 | if (SvPOK (fh_or_path)) |
1075 | { |
1509 | { |
1076 | req->type = ix; |
1510 | req->type = ix; |
1077 | req->data = newSVsv (fh_or_path); |
1511 | req->sv1 = newSVsv (fh_or_path); |
1078 | req->dataptr = SvPVbyte_nolen (req->data); |
1512 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1079 | } |
1513 | } |
1080 | else |
1514 | else |
1081 | { |
1515 | { |
1082 | req->type = REQ_FSTAT; |
1516 | req->type = REQ_FSTAT; |
1083 | req->fh = newSVsv (fh_or_path); |
1517 | req->fh = newSVsv (fh_or_path); |
1084 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1518 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1085 | } |
1519 | } |
1086 | |
1520 | |
1087 | REQ_SEND; |
1521 | REQ_SEND; |
1088 | } |
1522 | } |
1089 | |
1523 | |
1090 | void |
1524 | void |
1091 | aio_unlink (pathname,callback=&PL_sv_undef) |
1525 | aio_unlink (pathname,callback=&PL_sv_undef) |
1092 | SV * pathname |
1526 | SV8 * pathname |
1093 | SV * callback |
1527 | SV * callback |
1094 | ALIAS: |
1528 | ALIAS: |
1095 | aio_unlink = REQ_UNLINK |
1529 | aio_unlink = REQ_UNLINK |
1096 | aio_rmdir = REQ_RMDIR |
1530 | aio_rmdir = REQ_RMDIR |
1097 | aio_readdir = REQ_READDIR |
1531 | aio_readdir = REQ_READDIR |
1098 | PPCODE: |
1532 | PPCODE: |
1099 | { |
1533 | { |
1100 | dREQ; |
1534 | dREQ; |
1101 | |
1535 | |
1102 | req->type = ix; |
1536 | req->type = ix; |
1103 | req->data = newSVsv (pathname); |
1537 | req->sv1 = newSVsv (pathname); |
1104 | req->dataptr = SvPVbyte_nolen (req->data); |
1538 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1539 | |
|
|
1540 | REQ_SEND; |
|
|
1541 | } |
|
|
1542 | |
|
|
1543 | void |
|
|
1544 | aio_mkdir (pathname,mode,callback=&PL_sv_undef) |
|
|
1545 | SV8 * pathname |
|
|
1546 | UV mode |
|
|
1547 | SV * callback |
|
|
1548 | PPCODE: |
|
|
1549 | { |
|
|
1550 | dREQ; |
1105 | |
1551 | |
|
|
1552 | req->type = REQ_MKDIR; |
|
|
1553 | req->sv1 = newSVsv (pathname); |
|
|
1554 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1555 | req->mode = mode; |
|
|
1556 | |
1106 | REQ_SEND; |
1557 | REQ_SEND; |
1107 | } |
1558 | } |
1108 | |
1559 | |
1109 | void |
1560 | void |
1110 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1561 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1111 | SV * oldpath |
1562 | SV8 * oldpath |
1112 | SV * newpath |
1563 | SV8 * newpath |
1113 | SV * callback |
1564 | SV * callback |
1114 | ALIAS: |
1565 | ALIAS: |
1115 | aio_link = REQ_LINK |
1566 | aio_link = REQ_LINK |
1116 | aio_symlink = REQ_SYMLINK |
1567 | aio_symlink = REQ_SYMLINK |
1117 | aio_rename = REQ_RENAME |
1568 | aio_rename = REQ_RENAME |
1118 | PPCODE: |
1569 | PPCODE: |
1119 | { |
1570 | { |
1120 | dREQ; |
1571 | dREQ; |
1121 | |
1572 | |
1122 | req->type = ix; |
1573 | req->type = ix; |
1123 | req->fh = newSVsv (oldpath); |
1574 | req->fh = newSVsv (oldpath); |
1124 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1575 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1125 | req->data = newSVsv (newpath); |
1576 | req->sv1 = newSVsv (newpath); |
1126 | req->dataptr = SvPVbyte_nolen (req->data); |
1577 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1127 | |
1578 | |
1128 | REQ_SEND; |
1579 | REQ_SEND; |
1129 | } |
1580 | } |
1130 | |
1581 | |
1131 | void |
1582 | void |
1132 | aio_sleep (delay,callback=&PL_sv_undef) |
1583 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
1133 | double delay |
1584 | SV8 * pathname |
|
|
1585 | UV mode |
|
|
1586 | UV dev |
1134 | SV * callback |
1587 | SV * callback |
1135 | PPCODE: |
1588 | PPCODE: |
1136 | { |
1589 | { |
1137 | dREQ; |
1590 | dREQ; |
|
|
1591 | |
|
|
1592 | req->type = REQ_MKNOD; |
|
|
1593 | req->sv1 = newSVsv (pathname); |
|
|
1594 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1595 | req->mode = (mode_t)mode; |
|
|
1596 | req->offs = dev; |
|
|
1597 | |
|
|
1598 | REQ_SEND; |
|
|
1599 | } |
1138 | |
1600 | |
|
|
1601 | void |
|
|
1602 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1603 | double delay |
|
|
1604 | SV * callback |
|
|
1605 | PPCODE: |
|
|
1606 | { |
|
|
1607 | dREQ; |
|
|
1608 | |
1139 | req->type = REQ_SLEEP; |
1609 | req->type = REQ_BUSY; |
1140 | req->fd = delay < 0. ? 0 : delay; |
1610 | req->int1 = delay < 0. ? 0 : delay; |
1141 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1611 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
1142 | |
1612 | |
1143 | REQ_SEND; |
1613 | REQ_SEND; |
1144 | } |
1614 | } |
1145 | |
1615 | |
1146 | void |
1616 | void |
… | |
… | |
1148 | SV * callback |
1618 | SV * callback |
1149 | PROTOTYPE: ;$ |
1619 | PROTOTYPE: ;$ |
1150 | PPCODE: |
1620 | PPCODE: |
1151 | { |
1621 | { |
1152 | dREQ; |
1622 | dREQ; |
|
|
1623 | |
1153 | req->type = REQ_GROUP; |
1624 | req->type = REQ_GROUP; |
1154 | req->grp_next = req; |
|
|
1155 | req->grp_prev = req; |
|
|
1156 | |
1625 | |
1157 | req_send (req); |
1626 | req_send (req); |
1158 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1627 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1159 | } |
1628 | } |
|
|
1629 | |
|
|
1630 | void |
|
|
1631 | aio_nop (callback=&PL_sv_undef) |
|
|
1632 | SV * callback |
|
|
1633 | PPCODE: |
|
|
1634 | { |
|
|
1635 | dREQ; |
|
|
1636 | |
|
|
1637 | req->type = REQ_NOP; |
|
|
1638 | |
|
|
1639 | REQ_SEND; |
|
|
1640 | } |
|
|
1641 | |
|
|
1642 | int |
|
|
1643 | aioreq_pri (int pri = 0) |
|
|
1644 | PROTOTYPE: ;$ |
|
|
1645 | CODE: |
|
|
1646 | RETVAL = next_pri - PRI_BIAS; |
|
|
1647 | if (items > 0) |
|
|
1648 | { |
|
|
1649 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1650 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1651 | next_pri = pri + PRI_BIAS; |
|
|
1652 | } |
|
|
1653 | OUTPUT: |
|
|
1654 | RETVAL |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | aioreq_nice (int nice = 0) |
|
|
1658 | CODE: |
|
|
1659 | nice = next_pri - nice; |
|
|
1660 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1661 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1662 | next_pri = nice + PRI_BIAS; |
1160 | |
1663 | |
1161 | void |
1664 | void |
1162 | flush () |
1665 | flush () |
1163 | PROTOTYPE: |
1666 | PROTOTYPE: |
1164 | CODE: |
1667 | CODE: |
… | |
… | |
1166 | { |
1669 | { |
1167 | poll_wait (); |
1670 | poll_wait (); |
1168 | poll_cb (); |
1671 | poll_cb (); |
1169 | } |
1672 | } |
1170 | |
1673 | |
1171 | void |
1674 | int |
1172 | poll() |
1675 | poll() |
1173 | PROTOTYPE: |
1676 | PROTOTYPE: |
1174 | CODE: |
1677 | CODE: |
1175 | if (nreqs) |
|
|
1176 | { |
|
|
1177 | poll_wait (); |
1678 | poll_wait (); |
1178 | poll_cb (); |
1679 | RETVAL = poll_cb (); |
1179 | } |
1680 | OUTPUT: |
|
|
1681 | RETVAL |
1180 | |
1682 | |
1181 | int |
1683 | int |
1182 | poll_fileno() |
1684 | poll_fileno() |
1183 | PROTOTYPE: |
1685 | PROTOTYPE: |
1184 | CODE: |
1686 | CODE: |
… | |
… | |
1196 | |
1698 | |
1197 | void |
1699 | void |
1198 | poll_wait() |
1700 | poll_wait() |
1199 | PROTOTYPE: |
1701 | PROTOTYPE: |
1200 | CODE: |
1702 | CODE: |
1201 | if (nreqs) |
|
|
1202 | poll_wait (); |
1703 | poll_wait (); |
|
|
1704 | |
|
|
1705 | void |
|
|
1706 | setsig (int signum = SIGIO) |
|
|
1707 | PROTOTYPE: ;$ |
|
|
1708 | CODE: |
|
|
1709 | { |
|
|
1710 | if (block_sig_level) |
|
|
1711 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1712 | |
|
|
1713 | LOCK (reslock); |
|
|
1714 | main_tid = pthread_self (); |
|
|
1715 | main_sig = signum; |
|
|
1716 | UNLOCK (reslock); |
|
|
1717 | |
|
|
1718 | if (main_sig && npending) |
|
|
1719 | pthread_kill (main_tid, main_sig); |
|
|
1720 | } |
|
|
1721 | |
|
|
1722 | void |
|
|
1723 | aio_block (SV *cb) |
|
|
1724 | PROTOTYPE: & |
|
|
1725 | PPCODE: |
|
|
1726 | { |
|
|
1727 | int count; |
|
|
1728 | |
|
|
1729 | block_sig (); |
|
|
1730 | PUSHMARK (SP); |
|
|
1731 | PUTBACK; |
|
|
1732 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1733 | SPAGAIN; |
|
|
1734 | unblock_sig (); |
|
|
1735 | |
|
|
1736 | if (SvTRUE (ERRSV)) |
|
|
1737 | croak (0); |
|
|
1738 | |
|
|
1739 | XSRETURN (count); |
|
|
1740 | } |
1203 | |
1741 | |
1204 | int |
1742 | int |
1205 | nreqs() |
1743 | nreqs() |
1206 | PROTOTYPE: |
1744 | PROTOTYPE: |
1207 | CODE: |
1745 | CODE: |
1208 | RETVAL = nreqs; |
1746 | RETVAL = nreqs; |
1209 | OUTPUT: |
1747 | OUTPUT: |
1210 | RETVAL |
1748 | RETVAL |
1211 | |
1749 | |
1212 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1750 | int |
1213 | |
1751 | nready() |
1214 | void |
|
|
1215 | cancel (aio_req_ornot req) |
|
|
1216 | PROTOTYPE: |
1752 | PROTOTYPE: |
1217 | CODE: |
1753 | CODE: |
|
|
1754 | RETVAL = get_nready (); |
|
|
1755 | OUTPUT: |
|
|
1756 | RETVAL |
|
|
1757 | |
|
|
1758 | int |
|
|
1759 | npending() |
|
|
1760 | PROTOTYPE: |
|
|
1761 | CODE: |
|
|
1762 | RETVAL = get_npending (); |
|
|
1763 | OUTPUT: |
|
|
1764 | RETVAL |
|
|
1765 | |
|
|
1766 | int |
|
|
1767 | nthreads() |
|
|
1768 | PROTOTYPE: |
|
|
1769 | CODE: |
|
|
1770 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1771 | RETVAL = started; |
|
|
1772 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1773 | OUTPUT: |
|
|
1774 | RETVAL |
|
|
1775 | |
|
|
1776 | PROTOTYPES: DISABLE |
|
|
1777 | |
|
|
1778 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1779 | |
|
|
1780 | void |
|
|
1781 | cancel (aio_req_ornot req) |
|
|
1782 | CODE: |
1218 | req_cancel (req); |
1783 | req_cancel (req); |
1219 | |
1784 | |
|
|
1785 | void |
|
|
1786 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1787 | CODE: |
|
|
1788 | SvREFCNT_dec (req->callback); |
|
|
1789 | req->callback = newSVsv (callback); |
|
|
1790 | |
1220 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1791 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1221 | |
1792 | |
1222 | void |
1793 | void |
1223 | add (aio_req grp, ...) |
1794 | add (aio_req grp, ...) |
1224 | PROTOTYPE: $;@ |
|
|
1225 | PPCODE: |
1795 | PPCODE: |
1226 | { |
1796 | { |
1227 | int i; |
1797 | int i; |
|
|
1798 | aio_req req; |
|
|
1799 | |
|
|
1800 | if (main_sig && !block_sig_level) |
|
|
1801 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1802 | |
|
|
1803 | if (grp->int1 == 2) |
|
|
1804 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1228 | |
1805 | |
1229 | for (i = 1; i < items; ++i ) |
1806 | for (i = 1; i < items; ++i ) |
1230 | { |
1807 | { |
1231 | if (GIMME_V != G_VOID) |
1808 | if (GIMME_V != G_VOID) |
1232 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1809 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1233 | |
1810 | |
1234 | aio_req req = SvAIO_REQ (ST (i)); |
1811 | req = SvAIO_REQ (ST (i)); |
1235 | printf ("req = %p\n", req);//D |
|
|
1236 | |
1812 | |
1237 | if (req) |
1813 | if (req) |
1238 | { |
1814 | { |
1239 | req->grp_prev = grp; |
1815 | ++grp->size; |
1240 | req->grp_next = grp->grp_next; |
|
|
1241 | grp->grp_next->grp_prev = req; |
|
|
1242 | grp->grp_next = req; |
|
|
1243 | |
|
|
1244 | req->grp = grp; |
1816 | req->grp = grp; |
|
|
1817 | |
|
|
1818 | req->grp_prev = 0; |
|
|
1819 | req->grp_next = grp->grp_first; |
|
|
1820 | |
|
|
1821 | if (grp->grp_first) |
|
|
1822 | grp->grp_first->grp_prev = req; |
|
|
1823 | |
|
|
1824 | grp->grp_first = req; |
1245 | } |
1825 | } |
1246 | } |
1826 | } |
1247 | } |
1827 | } |
1248 | |
1828 | |
|
|
1829 | void |
|
|
1830 | cancel_subs (aio_req_ornot req) |
|
|
1831 | CODE: |
|
|
1832 | req_cancel_subs (req); |
|
|
1833 | |
|
|
1834 | void |
|
|
1835 | result (aio_req grp, ...) |
|
|
1836 | CODE: |
|
|
1837 | { |
|
|
1838 | int i; |
|
|
1839 | AV *av; |
|
|
1840 | |
|
|
1841 | grp->errorno = errno; |
|
|
1842 | |
|
|
1843 | av = newAV (); |
|
|
1844 | |
|
|
1845 | for (i = 1; i < items; ++i ) |
|
|
1846 | av_push (av, newSVsv (ST (i))); |
|
|
1847 | |
|
|
1848 | SvREFCNT_dec (grp->sv1); |
|
|
1849 | grp->sv1 = (SV *)av; |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | void |
|
|
1853 | errno (aio_req grp, int errorno = errno) |
|
|
1854 | CODE: |
|
|
1855 | grp->errorno = errorno; |
|
|
1856 | |
|
|
1857 | void |
|
|
1858 | limit (aio_req grp, int limit) |
|
|
1859 | CODE: |
|
|
1860 | grp->int2 = limit; |
|
|
1861 | aio_grp_feed (grp); |
|
|
1862 | |
|
|
1863 | void |
|
|
1864 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1865 | CODE: |
|
|
1866 | { |
|
|
1867 | SvREFCNT_dec (grp->sv2); |
|
|
1868 | grp->sv2 = newSVsv (callback); |
|
|
1869 | |
|
|
1870 | if (grp->int2 <= 0) |
|
|
1871 | grp->int2 = 2; |
|
|
1872 | |
|
|
1873 | aio_grp_feed (grp); |
|
|
1874 | } |
|
|
1875 | |