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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
1 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
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10 | |
2 | #include <errno.h> |
11 | #include <errno.h> |
3 | |
12 | |
4 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
5 | #include "perl.h" |
14 | #include "perl.h" |
6 | #include "XSUB.h" |
15 | #include "XSUB.h" |
… | |
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34 | # else |
43 | # else |
35 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
36 | # endif |
45 | # endif |
37 | #endif |
46 | #endif |
38 | |
47 | |
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48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
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50 | |
39 | /* used for struct dirent, AIX doesn't provide it */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
40 | #ifndef NAME_MAX |
52 | #ifndef NAME_MAX |
41 | # define NAME_MAX 4096 |
53 | # define NAME_MAX 4096 |
42 | #endif |
54 | #endif |
43 | |
55 | |
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56 | #ifndef PTHREAD_STACK_MIN |
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57 | /* care for broken platforms, e.g. windows */ |
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58 | # define PTHREAD_STACK_MIN 16384 |
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59 | #endif |
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60 | |
44 | #if __ia64 |
61 | #if __ia64 |
45 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
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63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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64 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
65 | #else |
47 | # define STACKSIZE 8192 |
66 | # define STACKSIZE 16384 |
48 | #endif |
67 | #endif |
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68 | |
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69 | /* wether word reads are potentially non-atomic. |
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70 | * this is conservatice, likely most arches this runs |
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71 | * on have atomic word read/writes. |
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72 | */ |
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73 | #ifndef WORDACCESS_UNSAFE |
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74 | # if __i386 || __x86_64 |
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75 | # define WORDACCESS_UNSAFE 0 |
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76 | # else |
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77 | # define WORDACCESS_UNSAFE 1 |
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78 | # endif |
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79 | #endif |
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80 | |
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81 | /* buffer size for various temporary buffers */ |
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82 | #define AIO_BUFSIZE 65536 |
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83 | |
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84 | #define dBUF \ |
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85 | char *aio_buf; \ |
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86 | LOCK (wrklock); \ |
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87 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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88 | UNLOCK (wrklock); \ |
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89 | if (!aio_buf) \ |
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90 | return -1; |
49 | |
91 | |
50 | enum { |
92 | enum { |
51 | REQ_QUIT, |
93 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
94 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
54 | REQ_SENDFILE, |
96 | REQ_SENDFILE, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
58 | REQ_READDIR, |
100 | REQ_MKNOD, REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
101 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
60 | REQ_SLEEP, |
102 | REQ_GROUP, REQ_NOP, |
61 | REQ_GROUP, |
103 | REQ_BUSY, |
62 | }; |
104 | }; |
63 | |
105 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
106 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
107 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
108 | |
67 | typedef struct aio_cb |
109 | typedef struct aio_cb |
68 | { |
110 | { |
69 | struct aio_cb *volatile next; |
111 | struct aio_cb *volatile next; |
70 | |
112 | |
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113 | SV *callback, *fh; |
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114 | SV *sv1, *sv2; |
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115 | void *ptr1, *ptr2; |
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116 | Stat_t *statdata; |
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117 | off_t offs; |
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118 | size_t size; |
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119 | ssize_t result; |
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120 | |
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121 | STRLEN stroffset; |
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122 | int type; |
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123 | int int1, int2; |
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124 | int errorno; |
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125 | mode_t mode; /* open */ |
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126 | |
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127 | unsigned char flags; |
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128 | unsigned char pri; |
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129 | |
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130 | SV *self; /* the perl counterpart of this request, if any */ |
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
131 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
72 | |
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73 | SV *self; /* the perl counterpart of this request, if any */ |
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74 | |
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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; |
132 | } aio_cb; |
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133 | |
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134 | enum { |
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135 | FLAG_CANCELLED = 0x01, |
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136 | FLAG_DATA_RO_OFF = 0x80, /* data was set readonly */ |
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137 | }; |
90 | |
138 | |
91 | typedef aio_cb *aio_req; |
139 | typedef aio_cb *aio_req; |
92 | typedef aio_cb *aio_req_ornot; |
140 | typedef aio_cb *aio_req_ornot; |
93 | |
141 | |
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142 | enum { |
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143 | PRI_MIN = -4, |
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144 | PRI_MAX = 4, |
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145 | |
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146 | DEFAULT_PRI = 0, |
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147 | PRI_BIAS = -PRI_MIN, |
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148 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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149 | }; |
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150 | |
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151 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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152 | |
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153 | static unsigned int max_poll_time = 0; |
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154 | static unsigned int max_poll_reqs = 0; |
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155 | |
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156 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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157 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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158 | { |
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159 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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160 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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161 | } |
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162 | |
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163 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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164 | |
94 | static int started, wanted; |
165 | static unsigned int started, idle, wanted; |
95 | static volatile int nreqs; |
166 | |
96 | static int max_outstanding = 1<<30; |
167 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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168 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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169 | #else |
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170 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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171 | #endif |
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172 | |
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173 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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174 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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175 | |
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176 | /* worker threads management */ |
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177 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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178 | |
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179 | typedef struct worker { |
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180 | /* locked by wrklock */ |
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181 | struct worker *prev, *next; |
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182 | |
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183 | pthread_t tid; |
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184 | |
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185 | /* locked by reslock, reqlock or wrklock */ |
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186 | aio_req req; /* currently processed request */ |
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187 | void *dbuf; |
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188 | DIR *dirp; |
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189 | } worker; |
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190 | |
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191 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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192 | |
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193 | static void worker_clear (worker *wrk) |
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194 | { |
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195 | if (wrk->dirp) |
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196 | { |
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197 | closedir (wrk->dirp); |
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198 | wrk->dirp = 0; |
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199 | } |
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200 | |
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201 | if (wrk->dbuf) |
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202 | { |
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203 | free (wrk->dbuf); |
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204 | wrk->dbuf = 0; |
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205 | } |
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206 | } |
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207 | |
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208 | static void worker_free (worker *wrk) |
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209 | { |
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210 | wrk->next->prev = wrk->prev; |
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211 | wrk->prev->next = wrk->next; |
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212 | |
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213 | free (wrk); |
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214 | } |
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215 | |
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216 | static volatile unsigned int nreqs, nready, npending; |
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217 | static volatile unsigned int max_idle = 4; |
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218 | static volatile unsigned int max_outstanding = 0xffffffff; |
97 | static int respipe [2]; |
219 | static int respipe [2]; |
98 | |
220 | |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
221 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
222 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
223 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
102 | |
224 | |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
225 | #if WORDACCESS_UNSAFE |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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105 | |
226 | |
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227 | static unsigned int get_nready () |
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228 | { |
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229 | unsigned int retval; |
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230 | |
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231 | LOCK (reqlock); |
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232 | retval = nready; |
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233 | UNLOCK (reqlock); |
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234 | |
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235 | return retval; |
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236 | } |
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237 | |
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238 | static unsigned int get_npending () |
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239 | { |
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240 | unsigned int retval; |
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241 | |
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242 | LOCK (reslock); |
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243 | retval = npending; |
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244 | UNLOCK (reslock); |
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245 | |
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246 | return retval; |
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247 | } |
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248 | |
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249 | static unsigned int get_nthreads () |
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250 | { |
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251 | unsigned int retval; |
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252 | |
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253 | LOCK (wrklock); |
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254 | retval = started; |
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255 | UNLOCK (wrklock); |
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256 | |
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257 | return retval; |
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258 | } |
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259 | |
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260 | #else |
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261 | |
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262 | # define get_nready() nready |
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263 | # define get_npending() npending |
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264 | # define get_nthreads() started |
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265 | |
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266 | #endif |
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267 | |
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268 | /* |
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269 | * a somewhat faster data structure might be nice, but |
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270 | * with 8 priorities this actually needs <20 insns |
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271 | * per shift, the most expensive operation. |
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272 | */ |
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273 | typedef struct { |
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274 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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275 | int size; |
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276 | } reqq; |
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277 | |
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278 | static reqq req_queue; |
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279 | static reqq res_queue; |
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280 | |
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281 | int reqq_push (reqq *q, aio_req req) |
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282 | { |
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283 | int pri = req->pri; |
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284 | req->next = 0; |
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285 | |
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286 | if (q->qe[pri]) |
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287 | { |
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288 | q->qe[pri]->next = req; |
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289 | q->qe[pri] = req; |
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290 | } |
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291 | else |
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292 | q->qe[pri] = q->qs[pri] = req; |
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293 | |
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294 | return q->size++; |
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295 | } |
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296 | |
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297 | aio_req reqq_shift (reqq *q) |
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298 | { |
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299 | int pri; |
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300 | |
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301 | if (!q->size) |
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302 | return 0; |
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303 | |
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304 | --q->size; |
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305 | |
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306 | for (pri = NUM_PRI; pri--; ) |
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307 | { |
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308 | aio_req req = q->qs[pri]; |
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309 | |
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310 | if (req) |
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311 | { |
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312 | if (!(q->qs[pri] = req->next)) |
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313 | q->qe[pri] = 0; |
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314 | |
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315 | return req; |
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316 | } |
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317 | } |
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318 | |
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319 | abort (); |
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320 | } |
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321 | |
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322 | static int poll_cb (); |
106 | static void req_invoke (aio_req req); |
323 | static void req_invoke (aio_req req); |
107 | static void req_free (aio_req req); |
324 | static void req_free (aio_req req); |
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325 | static void req_cancel (aio_req req); |
108 | |
326 | |
109 | /* must be called at most once */ |
327 | /* must be called at most once */ |
110 | static SV *req_sv (aio_req req, const char *klass) |
328 | static SV *req_sv (aio_req req, const char *klass) |
111 | { |
329 | { |
112 | if (!req->self) |
330 | if (!req->self) |
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118 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
336 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
119 | } |
337 | } |
120 | |
338 | |
121 | static aio_req SvAIO_REQ (SV *sv) |
339 | static aio_req SvAIO_REQ (SV *sv) |
122 | { |
340 | { |
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341 | MAGIC *mg; |
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342 | |
123 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
343 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
124 | croak ("object of class " AIO_REQ_KLASS " expected"); |
344 | croak ("object of class " AIO_REQ_KLASS " expected"); |
125 | |
345 | |
126 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
346 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
127 | |
347 | |
128 | return mg ? (aio_req)mg->mg_ptr : 0; |
348 | return mg ? (aio_req)mg->mg_ptr : 0; |
129 | } |
349 | } |
130 | |
350 | |
131 | static void aio_grp_feed (aio_req grp) |
351 | static void aio_grp_feed (aio_req grp) |
132 | { |
352 | { |
133 | while (grp->length < grp->fd2) |
353 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
134 | { |
354 | { |
135 | int old_len = grp->length; |
355 | int old_len = grp->size; |
136 | |
356 | |
137 | if (grp->fh2 && SvOK (grp->fh2)) |
357 | if (grp->sv2 && SvOK (grp->sv2)) |
138 | { |
358 | { |
139 | dSP; |
359 | dSP; |
140 | |
360 | |
141 | ENTER; |
361 | ENTER; |
142 | SAVETMPS; |
362 | SAVETMPS; |
143 | PUSHMARK (SP); |
363 | PUSHMARK (SP); |
144 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
364 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
145 | PUTBACK; |
365 | PUTBACK; |
146 | call_sv (grp->fh2, G_VOID | G_EVAL); |
366 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
147 | SPAGAIN; |
367 | SPAGAIN; |
148 | FREETMPS; |
368 | FREETMPS; |
149 | LEAVE; |
369 | LEAVE; |
150 | } |
370 | } |
151 | |
371 | |
152 | /* stop if no progress has been made */ |
372 | /* stop if no progress has been made */ |
153 | if (old_len == grp->length) |
373 | if (old_len == grp->size) |
154 | { |
374 | { |
155 | SvREFCNT_dec (grp->fh2); |
375 | SvREFCNT_dec (grp->sv2); |
156 | grp->fh2 = 0; |
376 | grp->sv2 = 0; |
157 | break; |
377 | break; |
158 | } |
378 | } |
159 | } |
379 | } |
160 | } |
380 | } |
161 | |
381 | |
162 | static void aio_grp_dec (aio_req grp) |
382 | static void aio_grp_dec (aio_req grp) |
163 | { |
383 | { |
164 | --grp->length; |
384 | --grp->size; |
165 | |
385 | |
166 | /* call feeder, if applicable */ |
386 | /* call feeder, if applicable */ |
167 | aio_grp_feed (grp); |
387 | aio_grp_feed (grp); |
168 | |
388 | |
169 | /* finish, if done */ |
389 | /* finish, if done */ |
170 | if (!grp->length && grp->fd) |
390 | if (!grp->size && grp->int1) |
171 | { |
391 | { |
172 | req_invoke (grp); |
392 | req_invoke (grp); |
173 | req_free (grp); |
393 | req_free (grp); |
174 | } |
394 | } |
175 | } |
395 | } |
176 | |
396 | |
177 | static void poll_wait () |
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178 | { |
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179 | if (nreqs && !ress) |
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180 | { |
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181 | fd_set rfd; |
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182 | FD_ZERO(&rfd); |
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183 | FD_SET(respipe [0], &rfd); |
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184 | |
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185 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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186 | } |
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187 | } |
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188 | |
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189 | static void req_invoke (aio_req req) |
397 | static void req_invoke (aio_req req) |
190 | { |
398 | { |
191 | dSP; |
399 | dSP; |
192 | int errorno = errno; |
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193 | |
400 | |
194 | if (req->cancelled || !SvOK (req->callback)) |
401 | if (req->flags & FLAG_DATA_RO_OFF) |
195 | return; |
402 | SvREADONLY_off (req->sv1); |
196 | |
403 | |
197 | errno = req->errorno; |
404 | if (req->statdata) |
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405 | { |
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406 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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407 | PL_laststatval = req->result; |
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408 | PL_statcache = *(req->statdata); |
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409 | } |
198 | |
410 | |
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411 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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412 | { |
199 | ENTER; |
413 | ENTER; |
200 | SAVETMPS; |
414 | SAVETMPS; |
201 | PUSHMARK (SP); |
415 | PUSHMARK (SP); |
202 | EXTEND (SP, 1); |
416 | EXTEND (SP, 1); |
203 | |
417 | |
204 | switch (req->type) |
418 | switch (req->type) |
205 | { |
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206 | case REQ_READDIR: |
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207 | { |
419 | { |
208 | SV *rv = &PL_sv_undef; |
420 | case REQ_READDIR: |
209 | |
|
|
210 | if (req->result >= 0) |
|
|
211 | { |
421 | { |
212 | char *buf = req->data2ptr; |
422 | SV *rv = &PL_sv_undef; |
213 | AV *av = newAV (); |
|
|
214 | |
423 | |
215 | while (req->result) |
424 | if (req->result >= 0) |
216 | { |
425 | { |
|
|
426 | int i; |
|
|
427 | char *buf = req->ptr2; |
|
|
428 | AV *av = newAV (); |
|
|
429 | |
|
|
430 | av_extend (av, req->result - 1); |
|
|
431 | |
|
|
432 | for (i = 0; i < req->result; ++i) |
|
|
433 | { |
217 | SV *sv = newSVpv (buf, 0); |
434 | SV *sv = newSVpv (buf, 0); |
218 | |
435 | |
219 | av_push (av, sv); |
436 | av_store (av, i, sv); |
220 | buf += SvCUR (sv) + 1; |
437 | buf += SvCUR (sv) + 1; |
221 | req->result--; |
438 | } |
|
|
439 | |
|
|
440 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
222 | } |
441 | } |
223 | |
442 | |
224 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
443 | PUSHs (rv); |
225 | } |
444 | } |
|
|
445 | break; |
226 | |
446 | |
|
|
447 | case REQ_OPEN: |
|
|
448 | { |
|
|
449 | /* convert fd to fh */ |
|
|
450 | SV *fh; |
|
|
451 | |
|
|
452 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
453 | PUTBACK; |
|
|
454 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
455 | SPAGAIN; |
|
|
456 | |
|
|
457 | fh = SvREFCNT_inc (POPs); |
|
|
458 | |
|
|
459 | PUSHMARK (SP); |
|
|
460 | XPUSHs (sv_2mortal (fh)); |
|
|
461 | } |
|
|
462 | break; |
|
|
463 | |
|
|
464 | case REQ_GROUP: |
|
|
465 | req->int1 = 2; /* mark group as finished */ |
|
|
466 | |
|
|
467 | if (req->sv1) |
|
|
468 | { |
|
|
469 | int i; |
|
|
470 | AV *av = (AV *)req->sv1; |
|
|
471 | |
|
|
472 | EXTEND (SP, AvFILL (av) + 1); |
|
|
473 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
474 | PUSHs (*av_fetch (av, i, 0)); |
|
|
475 | } |
|
|
476 | break; |
|
|
477 | |
|
|
478 | case REQ_NOP: |
|
|
479 | case REQ_BUSY: |
|
|
480 | break; |
|
|
481 | |
|
|
482 | case REQ_READLINK: |
|
|
483 | if (req->result > 0) |
|
|
484 | { |
|
|
485 | SvCUR_set (req->sv1, req->result); |
|
|
486 | *SvEND (req->sv1) = 0; |
227 | PUSHs (rv); |
487 | PUSHs (req->sv1); |
|
|
488 | } |
|
|
489 | break; |
|
|
490 | |
|
|
491 | case REQ_READ: |
|
|
492 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
493 | *SvEND (req->sv1) = 0; |
|
|
494 | /* fall through */ |
|
|
495 | default: |
|
|
496 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
497 | break; |
228 | } |
498 | } |
229 | break; |
|
|
230 | |
499 | |
231 | case REQ_OPEN: |
500 | errno = req->errorno; |
232 | { |
|
|
233 | /* convert fd to fh */ |
|
|
234 | SV *fh; |
|
|
235 | |
501 | |
236 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
237 | PUTBACK; |
502 | PUTBACK; |
238 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
239 | SPAGAIN; |
|
|
240 | |
|
|
241 | fh = SvREFCNT_inc (POPs); |
|
|
242 | |
|
|
243 | PUSHMARK (SP); |
|
|
244 | XPUSHs (sv_2mortal (fh)); |
|
|
245 | } |
|
|
246 | break; |
|
|
247 | |
|
|
248 | case REQ_GROUP: |
|
|
249 | req->fd = 2; /* mark group as finished */ |
|
|
250 | |
|
|
251 | if (req->data) |
|
|
252 | { |
|
|
253 | int i; |
|
|
254 | AV *av = (AV *)req->data; |
|
|
255 | |
|
|
256 | EXTEND (SP, AvFILL (av) + 1); |
|
|
257 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
258 | PUSHs (*av_fetch (av, i, 0)); |
|
|
259 | } |
|
|
260 | break; |
|
|
261 | |
|
|
262 | case REQ_SLEEP: |
|
|
263 | break; |
|
|
264 | |
|
|
265 | default: |
|
|
266 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
267 | break; |
|
|
268 | } |
|
|
269 | |
|
|
270 | |
|
|
271 | PUTBACK; |
|
|
272 | call_sv (req->callback, G_VOID | G_EVAL); |
503 | call_sv (req->callback, G_VOID | G_EVAL); |
273 | SPAGAIN; |
504 | SPAGAIN; |
274 | |
505 | |
275 | if (SvTRUE (ERRSV)) |
|
|
276 | { |
|
|
277 | req_free (req); |
|
|
278 | croak (0); |
|
|
279 | } |
|
|
280 | |
|
|
281 | FREETMPS; |
506 | FREETMPS; |
282 | LEAVE; |
507 | LEAVE; |
|
|
508 | } |
283 | |
509 | |
284 | errno = errorno; |
|
|
285 | } |
|
|
286 | |
|
|
287 | static void req_free (aio_req req) |
|
|
288 | { |
|
|
289 | if (req->grp) |
510 | if (req->grp) |
290 | { |
511 | { |
291 | aio_req grp = req->grp; |
512 | aio_req grp = req->grp; |
292 | |
513 | |
293 | /* unlink request */ |
514 | /* unlink request */ |
… | |
… | |
298 | grp->grp_first = req->grp_next; |
519 | grp->grp_first = req->grp_next; |
299 | |
520 | |
300 | aio_grp_dec (grp); |
521 | aio_grp_dec (grp); |
301 | } |
522 | } |
302 | |
523 | |
|
|
524 | if (SvTRUE (ERRSV)) |
|
|
525 | { |
|
|
526 | req_free (req); |
|
|
527 | croak (0); |
|
|
528 | } |
|
|
529 | } |
|
|
530 | |
|
|
531 | static void req_free (aio_req req) |
|
|
532 | { |
303 | if (req->self) |
533 | if (req->self) |
304 | { |
534 | { |
305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
535 | sv_unmagic (req->self, PERL_MAGIC_ext); |
306 | SvREFCNT_dec (req->self); |
536 | SvREFCNT_dec (req->self); |
307 | } |
537 | } |
308 | |
538 | |
309 | SvREFCNT_dec (req->data); |
|
|
310 | SvREFCNT_dec (req->fh); |
539 | SvREFCNT_dec (req->fh); |
|
|
540 | SvREFCNT_dec (req->sv1); |
311 | SvREFCNT_dec (req->fh2); |
541 | SvREFCNT_dec (req->sv2); |
312 | SvREFCNT_dec (req->callback); |
542 | SvREFCNT_dec (req->callback); |
313 | Safefree (req->statdata); |
543 | Safefree (req->statdata); |
314 | |
544 | |
315 | if (req->type == REQ_READDIR && req->result >= 0) |
545 | if (req->type == REQ_READDIR) |
316 | free (req->data2ptr); |
546 | free (req->ptr2); |
317 | |
547 | |
318 | Safefree (req); |
548 | Safefree (req); |
319 | } |
549 | } |
320 | |
550 | |
|
|
551 | static void req_cancel_subs (aio_req grp) |
|
|
552 | { |
|
|
553 | aio_req sub; |
|
|
554 | |
|
|
555 | if (grp->type != REQ_GROUP) |
|
|
556 | return; |
|
|
557 | |
|
|
558 | SvREFCNT_dec (grp->sv2); |
|
|
559 | grp->sv2 = 0; |
|
|
560 | |
|
|
561 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
562 | req_cancel (sub); |
|
|
563 | } |
|
|
564 | |
321 | static void req_cancel (aio_req req) |
565 | static void req_cancel (aio_req req) |
322 | { |
566 | { |
323 | req->cancelled = 1; |
567 | req->flags |= FLAG_CANCELLED; |
324 | |
568 | |
325 | if (req->type == REQ_GROUP) |
569 | req_cancel_subs (req); |
326 | { |
|
|
327 | aio_req sub; |
|
|
328 | |
|
|
329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
330 | req_cancel (sub); |
|
|
331 | } |
|
|
332 | } |
|
|
333 | |
|
|
334 | static int poll_cb () |
|
|
335 | { |
|
|
336 | dSP; |
|
|
337 | int count = 0; |
|
|
338 | int do_croak = 0; |
|
|
339 | aio_req req; |
|
|
340 | |
|
|
341 | for (;;) |
|
|
342 | { |
|
|
343 | pthread_mutex_lock (&reslock); |
|
|
344 | req = ress; |
|
|
345 | |
|
|
346 | if (req) |
|
|
347 | { |
|
|
348 | ress = req->next; |
|
|
349 | |
|
|
350 | if (!ress) |
|
|
351 | { |
|
|
352 | /* read any signals sent by the worker threads */ |
|
|
353 | char buf [32]; |
|
|
354 | while (read (respipe [0], buf, 32) == 32) |
|
|
355 | ; |
|
|
356 | |
|
|
357 | rese = 0; |
|
|
358 | } |
|
|
359 | } |
|
|
360 | |
|
|
361 | pthread_mutex_unlock (&reslock); |
|
|
362 | |
|
|
363 | if (!req) |
|
|
364 | break; |
|
|
365 | |
|
|
366 | --nreqs; |
|
|
367 | |
|
|
368 | if (req->type == REQ_QUIT) |
|
|
369 | started--; |
|
|
370 | else if (req->type == REQ_GROUP && req->length) |
|
|
371 | { |
|
|
372 | req->fd = 1; /* mark request as delayed */ |
|
|
373 | continue; |
|
|
374 | } |
|
|
375 | else |
|
|
376 | { |
|
|
377 | if (req->type == REQ_READ) |
|
|
378 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
379 | |
|
|
380 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
381 | SvREADONLY_off (req->data); |
|
|
382 | |
|
|
383 | if (req->statdata) |
|
|
384 | { |
|
|
385 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
386 | PL_laststatval = req->result; |
|
|
387 | PL_statcache = *(req->statdata); |
|
|
388 | } |
|
|
389 | |
|
|
390 | req_invoke (req); |
|
|
391 | |
|
|
392 | count++; |
|
|
393 | } |
|
|
394 | |
|
|
395 | req_free (req); |
|
|
396 | } |
|
|
397 | |
|
|
398 | return count; |
|
|
399 | } |
570 | } |
400 | |
571 | |
401 | static void *aio_proc(void *arg); |
572 | static void *aio_proc(void *arg); |
402 | |
573 | |
403 | static void start_thread (void) |
574 | static void start_thread (void) |
404 | { |
575 | { |
405 | sigset_t fullsigset, oldsigset; |
576 | sigset_t fullsigset, oldsigset; |
406 | pthread_t tid; |
|
|
407 | pthread_attr_t attr; |
577 | pthread_attr_t attr; |
|
|
578 | |
|
|
579 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
580 | |
|
|
581 | if (!wrk) |
|
|
582 | croak ("unable to allocate worker thread data"); |
408 | |
583 | |
409 | pthread_attr_init (&attr); |
584 | pthread_attr_init (&attr); |
410 | pthread_attr_setstacksize (&attr, STACKSIZE); |
585 | pthread_attr_setstacksize (&attr, STACKSIZE); |
411 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
586 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
587 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
588 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
589 | #endif |
412 | |
590 | |
413 | sigfillset (&fullsigset); |
591 | sigfillset (&fullsigset); |
|
|
592 | |
|
|
593 | LOCK (wrklock); |
414 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
594 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
415 | |
595 | |
416 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
596 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
597 | { |
|
|
598 | wrk->prev = &wrk_first; |
|
|
599 | wrk->next = wrk_first.next; |
|
|
600 | wrk_first.next->prev = wrk; |
|
|
601 | wrk_first.next = wrk; |
417 | started++; |
602 | ++started; |
|
|
603 | } |
|
|
604 | else |
|
|
605 | free (wrk); |
418 | |
606 | |
419 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
607 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
608 | UNLOCK (wrklock); |
|
|
609 | } |
|
|
610 | |
|
|
611 | static void maybe_start_thread () |
|
|
612 | { |
|
|
613 | if (get_nthreads () >= wanted) |
|
|
614 | return; |
|
|
615 | |
|
|
616 | /* todo: maybe use idle here, but might be less exact */ |
|
|
617 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
618 | return; |
|
|
619 | |
|
|
620 | start_thread (); |
420 | } |
621 | } |
421 | |
622 | |
422 | static void req_send (aio_req req) |
623 | static void req_send (aio_req req) |
423 | { |
624 | { |
424 | while (started < wanted && nreqs >= started) |
|
|
425 | start_thread (); |
|
|
426 | |
|
|
427 | ++nreqs; |
625 | ++nreqs; |
428 | |
626 | |
429 | pthread_mutex_lock (&reqlock); |
627 | LOCK (reqlock); |
430 | |
628 | ++nready; |
431 | req->next = 0; |
629 | reqq_push (&req_queue, req); |
432 | |
|
|
433 | if (reqe) |
|
|
434 | { |
|
|
435 | reqe->next = req; |
|
|
436 | reqe = req; |
|
|
437 | } |
|
|
438 | else |
|
|
439 | reqe = reqs = req; |
|
|
440 | |
|
|
441 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
442 | pthread_mutex_unlock (&reqlock); |
631 | UNLOCK (reqlock); |
443 | |
632 | |
444 | if (nreqs > max_outstanding) |
633 | maybe_start_thread (); |
445 | for (;;) |
|
|
446 | { |
|
|
447 | poll_cb (); |
|
|
448 | |
|
|
449 | if (nreqs <= max_outstanding) |
|
|
450 | break; |
|
|
451 | |
|
|
452 | poll_wait (); |
|
|
453 | } |
|
|
454 | } |
634 | } |
455 | |
635 | |
456 | static void end_thread (void) |
636 | static void end_thread (void) |
457 | { |
637 | { |
458 | aio_req req; |
638 | aio_req req; |
|
|
639 | |
459 | Newz (0, req, 1, aio_cb); |
640 | Newz (0, req, 1, aio_cb); |
|
|
641 | |
460 | req->type = REQ_QUIT; |
642 | req->type = REQ_QUIT; |
|
|
643 | req->pri = PRI_MAX + PRI_BIAS; |
461 | |
644 | |
462 | req_send (req); |
645 | LOCK (reqlock); |
|
|
646 | reqq_push (&req_queue, req); |
|
|
647 | pthread_cond_signal (&reqwait); |
|
|
648 | UNLOCK (reqlock); |
|
|
649 | |
|
|
650 | LOCK (wrklock); |
|
|
651 | --started; |
|
|
652 | UNLOCK (wrklock); |
|
|
653 | } |
|
|
654 | |
|
|
655 | static void set_max_idle (int nthreads) |
|
|
656 | { |
|
|
657 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
658 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
659 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
463 | } |
660 | } |
464 | |
661 | |
465 | static void min_parallel (int nthreads) |
662 | static void min_parallel (int nthreads) |
466 | { |
663 | { |
467 | if (wanted < nthreads) |
664 | if (wanted < nthreads) |
468 | wanted = nthreads; |
665 | wanted = nthreads; |
469 | } |
666 | } |
470 | |
667 | |
471 | static void max_parallel (int nthreads) |
668 | static void max_parallel (int nthreads) |
472 | { |
669 | { |
473 | int cur = started; |
|
|
474 | |
|
|
475 | if (wanted > nthreads) |
670 | if (wanted > nthreads) |
476 | wanted = nthreads; |
671 | wanted = nthreads; |
477 | |
672 | |
478 | while (cur > wanted) |
|
|
479 | { |
|
|
480 | end_thread (); |
|
|
481 | cur--; |
|
|
482 | } |
|
|
483 | |
|
|
484 | while (started > wanted) |
673 | while (started > wanted) |
|
|
674 | end_thread (); |
|
|
675 | } |
|
|
676 | |
|
|
677 | static void poll_wait () |
|
|
678 | { |
|
|
679 | fd_set rfd; |
|
|
680 | |
|
|
681 | while (nreqs) |
|
|
682 | { |
|
|
683 | int size; |
|
|
684 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
685 | size = res_queue.size; |
|
|
686 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
687 | |
|
|
688 | if (size) |
|
|
689 | return; |
|
|
690 | |
|
|
691 | maybe_start_thread (); |
|
|
692 | |
|
|
693 | FD_ZERO(&rfd); |
|
|
694 | FD_SET(respipe [0], &rfd); |
|
|
695 | |
|
|
696 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
485 | { |
697 | } |
|
|
698 | } |
|
|
699 | |
|
|
700 | static int poll_cb () |
|
|
701 | { |
|
|
702 | dSP; |
|
|
703 | int count = 0; |
|
|
704 | int maxreqs = max_poll_reqs; |
|
|
705 | int do_croak = 0; |
|
|
706 | struct timeval tv_start, tv_now; |
|
|
707 | aio_req req; |
|
|
708 | |
|
|
709 | if (max_poll_time) |
|
|
710 | gettimeofday (&tv_start, 0); |
|
|
711 | |
|
|
712 | for (;;) |
|
|
713 | { |
|
|
714 | for (;;) |
|
|
715 | { |
|
|
716 | maybe_start_thread (); |
|
|
717 | |
|
|
718 | LOCK (reslock); |
|
|
719 | req = reqq_shift (&res_queue); |
|
|
720 | |
|
|
721 | if (req) |
|
|
722 | { |
|
|
723 | --npending; |
|
|
724 | |
|
|
725 | if (!res_queue.size) |
|
|
726 | { |
|
|
727 | /* read any signals sent by the worker threads */ |
|
|
728 | char buf [32]; |
|
|
729 | while (read (respipe [0], buf, 32) == 32) |
|
|
730 | ; |
|
|
731 | } |
|
|
732 | } |
|
|
733 | |
|
|
734 | UNLOCK (reslock); |
|
|
735 | |
|
|
736 | if (!req) |
|
|
737 | break; |
|
|
738 | |
|
|
739 | --nreqs; |
|
|
740 | |
|
|
741 | if (req->type == REQ_GROUP && req->size) |
|
|
742 | { |
|
|
743 | req->int1 = 1; /* mark request as delayed */ |
|
|
744 | continue; |
|
|
745 | } |
|
|
746 | else |
|
|
747 | { |
|
|
748 | req_invoke (req); |
|
|
749 | |
|
|
750 | count++; |
|
|
751 | } |
|
|
752 | |
|
|
753 | req_free (req); |
|
|
754 | |
|
|
755 | if (maxreqs && !--maxreqs) |
|
|
756 | break; |
|
|
757 | |
|
|
758 | if (max_poll_time) |
|
|
759 | { |
|
|
760 | gettimeofday (&tv_now, 0); |
|
|
761 | |
|
|
762 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
763 | break; |
|
|
764 | } |
|
|
765 | } |
|
|
766 | |
|
|
767 | if (nreqs <= max_outstanding) |
|
|
768 | break; |
|
|
769 | |
486 | poll_wait (); |
770 | poll_wait (); |
487 | poll_cb (); |
771 | |
|
|
772 | ++maxreqs; |
488 | } |
773 | } |
|
|
774 | |
|
|
775 | return count; |
489 | } |
776 | } |
490 | |
777 | |
491 | static void create_pipe () |
778 | static void create_pipe () |
492 | { |
779 | { |
493 | if (pipe (respipe)) |
780 | if (pipe (respipe)) |
… | |
… | |
517 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
804 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
518 | { |
805 | { |
519 | ssize_t res; |
806 | ssize_t res; |
520 | off_t ooffset; |
807 | off_t ooffset; |
521 | |
808 | |
522 | pthread_mutex_lock (&preadwritelock); |
809 | LOCK (preadwritelock); |
523 | ooffset = lseek (fd, 0, SEEK_CUR); |
810 | ooffset = lseek (fd, 0, SEEK_CUR); |
524 | lseek (fd, offset, SEEK_SET); |
811 | lseek (fd, offset, SEEK_SET); |
525 | res = read (fd, buf, count); |
812 | res = read (fd, buf, count); |
526 | lseek (fd, ooffset, SEEK_SET); |
813 | lseek (fd, ooffset, SEEK_SET); |
527 | pthread_mutex_unlock (&preadwritelock); |
814 | UNLOCK (preadwritelock); |
528 | |
815 | |
529 | return res; |
816 | return res; |
530 | } |
817 | } |
531 | |
818 | |
532 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
819 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
533 | { |
820 | { |
534 | ssize_t res; |
821 | ssize_t res; |
535 | off_t ooffset; |
822 | off_t ooffset; |
536 | |
823 | |
537 | pthread_mutex_lock (&preadwritelock); |
824 | LOCK (preadwritelock); |
538 | ooffset = lseek (fd, 0, SEEK_CUR); |
825 | ooffset = lseek (fd, 0, SEEK_CUR); |
539 | lseek (fd, offset, SEEK_SET); |
826 | lseek (fd, offset, SEEK_SET); |
540 | res = write (fd, buf, count); |
827 | res = write (fd, buf, count); |
541 | lseek (fd, offset, SEEK_SET); |
828 | lseek (fd, offset, SEEK_SET); |
542 | pthread_mutex_unlock (&preadwritelock); |
829 | UNLOCK (preadwritelock); |
543 | |
830 | |
544 | return res; |
831 | return res; |
545 | } |
832 | } |
546 | #endif |
833 | #endif |
547 | |
834 | |
548 | #if !HAVE_FDATASYNC |
835 | #if !HAVE_FDATASYNC |
549 | # define fdatasync fsync |
836 | # define fdatasync fsync |
550 | #endif |
837 | #endif |
551 | |
838 | |
552 | #if !HAVE_READAHEAD |
839 | #if !HAVE_READAHEAD |
553 | # define readahead aio_readahead |
840 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
554 | |
841 | |
555 | static ssize_t readahead (int fd, off_t offset, size_t count) |
842 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
556 | { |
843 | { |
557 | char readahead_buf[4096]; |
844 | dBUF; |
558 | |
845 | |
559 | while (count > 0) |
846 | while (count > 0) |
560 | { |
847 | { |
561 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
848 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
562 | |
849 | |
563 | pread (fd, readahead_buf, len, offset); |
850 | pread (fd, aio_buf, len, offset); |
564 | offset += len; |
851 | offset += len; |
565 | count -= len; |
852 | count -= len; |
566 | } |
853 | } |
567 | |
854 | |
568 | errno = 0; |
855 | errno = 0; |
569 | } |
856 | } |
|
|
857 | |
570 | #endif |
858 | #endif |
571 | |
859 | |
572 | #if !HAVE_READDIR_R |
860 | #if !HAVE_READDIR_R |
573 | # define readdir_r aio_readdir_r |
861 | # define readdir_r aio_readdir_r |
574 | |
862 | |
… | |
… | |
577 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
865 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
578 | { |
866 | { |
579 | struct dirent *e; |
867 | struct dirent *e; |
580 | int errorno; |
868 | int errorno; |
581 | |
869 | |
582 | pthread_mutex_lock (&readdirlock); |
870 | LOCK (readdirlock); |
583 | |
871 | |
584 | e = readdir (dirp); |
872 | e = readdir (dirp); |
585 | errorno = errno; |
873 | errorno = errno; |
586 | |
874 | |
587 | if (e) |
875 | if (e) |
… | |
… | |
590 | strcpy (ent->d_name, e->d_name); |
878 | strcpy (ent->d_name, e->d_name); |
591 | } |
879 | } |
592 | else |
880 | else |
593 | *res = 0; |
881 | *res = 0; |
594 | |
882 | |
595 | pthread_mutex_unlock (&readdirlock); |
883 | UNLOCK (readdirlock); |
596 | |
884 | |
597 | errno = errorno; |
885 | errno = errorno; |
598 | return e ? 0 : -1; |
886 | return e ? 0 : -1; |
599 | } |
887 | } |
600 | #endif |
888 | #endif |
601 | |
889 | |
602 | /* sendfile always needs emulation */ |
890 | /* sendfile always needs emulation */ |
603 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
891 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
604 | { |
892 | { |
605 | ssize_t res; |
893 | ssize_t res; |
606 | |
894 | |
607 | if (!count) |
895 | if (!count) |
608 | return 0; |
896 | return 0; |
… | |
… | |
619 | { |
907 | { |
620 | off_t sbytes; |
908 | off_t sbytes; |
621 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
909 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
622 | |
910 | |
623 | if (res < 0 && sbytes) |
911 | if (res < 0 && sbytes) |
624 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
912 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
625 | res = sbytes; |
913 | res = sbytes; |
626 | } |
914 | } |
627 | |
915 | |
628 | # elif __hpux |
916 | # elif __hpux |
629 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
917 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
657 | #endif |
945 | #endif |
658 | ) |
946 | ) |
659 | ) |
947 | ) |
660 | { |
948 | { |
661 | /* emulate sendfile. this is a major pain in the ass */ |
949 | /* emulate sendfile. this is a major pain in the ass */ |
662 | char buf[4096]; |
950 | dBUF; |
|
|
951 | |
663 | res = 0; |
952 | res = 0; |
664 | |
953 | |
665 | while (count) |
954 | while (count) |
666 | { |
955 | { |
667 | ssize_t cnt; |
956 | ssize_t cnt; |
668 | |
957 | |
669 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
958 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
670 | |
959 | |
671 | if (cnt <= 0) |
960 | if (cnt <= 0) |
672 | { |
961 | { |
673 | if (cnt && !res) res = -1; |
962 | if (cnt && !res) res = -1; |
674 | break; |
963 | break; |
675 | } |
964 | } |
676 | |
965 | |
677 | cnt = write (ofd, buf, cnt); |
966 | cnt = write (ofd, aio_buf, cnt); |
678 | |
967 | |
679 | if (cnt <= 0) |
968 | if (cnt <= 0) |
680 | { |
969 | { |
681 | if (cnt && !res) res = -1; |
970 | if (cnt && !res) res = -1; |
682 | break; |
971 | break; |
… | |
… | |
690 | |
979 | |
691 | return res; |
980 | return res; |
692 | } |
981 | } |
693 | |
982 | |
694 | /* read a full directory */ |
983 | /* read a full directory */ |
695 | static int scandir_ (const char *path, void **namesp) |
984 | static void scandir_ (aio_req req, worker *self) |
696 | { |
985 | { |
697 | DIR *dirp = opendir (path); |
986 | DIR *dirp; |
698 | union |
987 | union |
699 | { |
988 | { |
700 | struct dirent d; |
989 | struct dirent d; |
701 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
990 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
702 | } u; |
991 | } *u; |
703 | struct dirent *entp; |
992 | struct dirent *entp; |
704 | char *name, *names; |
993 | char *name, *names; |
705 | int memlen = 4096; |
994 | int memlen = 4096; |
706 | int memofs = 0; |
995 | int memofs = 0; |
707 | int res = 0; |
996 | int res = 0; |
708 | int errorno; |
997 | int errorno; |
709 | |
998 | |
710 | if (!dirp) |
999 | LOCK (wrklock); |
711 | return -1; |
1000 | self->dirp = dirp = opendir (req->ptr1); |
712 | |
1001 | self->dbuf = u = malloc (sizeof (*u)); |
713 | names = malloc (memlen); |
1002 | req->ptr2 = names = malloc (memlen); |
|
|
1003 | UNLOCK (wrklock); |
|
|
1004 | |
|
|
1005 | if (dirp && u && names) |
|
|
1006 | for (;;) |
|
|
1007 | { |
|
|
1008 | errno = 0; |
|
|
1009 | readdir_r (dirp, &u->d, &entp); |
|
|
1010 | |
|
|
1011 | if (!entp) |
|
|
1012 | break; |
|
|
1013 | |
|
|
1014 | name = entp->d_name; |
|
|
1015 | |
|
|
1016 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1017 | { |
|
|
1018 | int len = strlen (name) + 1; |
|
|
1019 | |
|
|
1020 | res++; |
|
|
1021 | |
|
|
1022 | while (memofs + len > memlen) |
|
|
1023 | { |
|
|
1024 | memlen *= 2; |
|
|
1025 | LOCK (wrklock); |
|
|
1026 | req->ptr2 = names = realloc (names, memlen); |
|
|
1027 | UNLOCK (wrklock); |
|
|
1028 | |
|
|
1029 | if (!names) |
|
|
1030 | break; |
|
|
1031 | } |
|
|
1032 | |
|
|
1033 | memcpy (names + memofs, name, len); |
|
|
1034 | memofs += len; |
|
|
1035 | } |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | if (errno) |
|
|
1039 | res = -1; |
|
|
1040 | |
|
|
1041 | req->result = res; |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | /*****************************************************************************/ |
|
|
1045 | |
|
|
1046 | static void *aio_proc (void *thr_arg) |
|
|
1047 | { |
|
|
1048 | aio_req req; |
|
|
1049 | struct timespec ts; |
|
|
1050 | worker *self = (worker *)thr_arg; |
|
|
1051 | |
|
|
1052 | /* try to distribute timeouts somewhat evenly */ |
|
|
1053 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1054 | * (1000000000UL / 1024UL); |
714 | |
1055 | |
715 | for (;;) |
1056 | for (;;) |
716 | { |
1057 | { |
717 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1058 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
718 | |
1059 | |
719 | if (!entp) |
1060 | LOCK (reqlock); |
720 | break; |
|
|
721 | |
|
|
722 | name = entp->d_name; |
|
|
723 | |
|
|
724 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
725 | { |
|
|
726 | int len = strlen (name) + 1; |
|
|
727 | |
|
|
728 | res++; |
|
|
729 | |
|
|
730 | while (memofs + len > memlen) |
|
|
731 | { |
|
|
732 | memlen *= 2; |
|
|
733 | names = realloc (names, memlen); |
|
|
734 | if (!names) |
|
|
735 | break; |
|
|
736 | } |
|
|
737 | |
|
|
738 | memcpy (names + memofs, name, len); |
|
|
739 | memofs += len; |
|
|
740 | } |
|
|
741 | } |
|
|
742 | |
|
|
743 | errorno = errno; |
|
|
744 | closedir (dirp); |
|
|
745 | |
|
|
746 | if (errorno) |
|
|
747 | { |
|
|
748 | free (names); |
|
|
749 | errno = errorno; |
|
|
750 | res = -1; |
|
|
751 | } |
|
|
752 | |
|
|
753 | *namesp = (void *)names; |
|
|
754 | return res; |
|
|
755 | } |
|
|
756 | |
|
|
757 | /*****************************************************************************/ |
|
|
758 | |
|
|
759 | static void *aio_proc (void *thr_arg) |
|
|
760 | { |
|
|
761 | aio_req req; |
|
|
762 | int type; |
|
|
763 | |
|
|
764 | do |
|
|
765 | { |
|
|
766 | pthread_mutex_lock (&reqlock); |
|
|
767 | |
1061 | |
768 | for (;;) |
1062 | for (;;) |
769 | { |
1063 | { |
770 | req = reqs; |
1064 | self->req = req = reqq_shift (&req_queue); |
771 | |
|
|
772 | if (reqs) |
|
|
773 | { |
|
|
774 | reqs = reqs->next; |
|
|
775 | if (!reqs) reqe = 0; |
|
|
776 | } |
|
|
777 | |
1065 | |
778 | if (req) |
1066 | if (req) |
779 | break; |
1067 | break; |
780 | |
1068 | |
|
|
1069 | ++idle; |
|
|
1070 | |
|
|
1071 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1072 | == ETIMEDOUT) |
|
|
1073 | { |
|
|
1074 | if (idle > max_idle) |
|
|
1075 | { |
|
|
1076 | --idle; |
|
|
1077 | UNLOCK (reqlock); |
|
|
1078 | LOCK (wrklock); |
|
|
1079 | --started; |
|
|
1080 | UNLOCK (wrklock); |
|
|
1081 | goto quit; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | /* we are allowed to idle, so do so without any timeout */ |
781 | pthread_cond_wait (&reqwait, &reqlock); |
1085 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1086 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | --idle; |
782 | } |
1090 | } |
783 | |
1091 | |
784 | pthread_mutex_unlock (&reqlock); |
1092 | --nready; |
|
|
1093 | |
|
|
1094 | UNLOCK (reqlock); |
785 | |
1095 | |
786 | errno = 0; /* strictly unnecessary */ |
1096 | errno = 0; /* strictly unnecessary */ |
787 | |
1097 | |
788 | if (!req->cancelled) |
1098 | if (!(req->flags & FLAG_CANCELLED)) |
789 | switch (type = req->type) /* remember type for QUIT check */ |
1099 | switch (req->type) |
790 | { |
1100 | { |
791 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1101 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
792 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1102 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
793 | |
1103 | |
794 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1104 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
795 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1105 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
796 | |
1106 | |
797 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1107 | case REQ_STAT: req->result = stat (req->ptr1, req->statdata); break; |
798 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1108 | case REQ_LSTAT: req->result = lstat (req->ptr1, req->statdata); break; |
799 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1109 | case REQ_FSTAT: req->result = fstat (req->int1, req->statdata); break; |
800 | |
1110 | |
801 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1111 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
802 | case REQ_CLOSE: req->result = close (req->fd); break; |
1112 | case REQ_CLOSE: req->result = close (req->int1); break; |
803 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1113 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
804 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1114 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
805 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1115 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
806 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1116 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
807 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1117 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1118 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1119 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
808 | |
1120 | |
809 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1121 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
810 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1122 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
811 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1123 | case REQ_READDIR: scandir_ (req, self); break; |
812 | |
1124 | |
813 | case REQ_SLEEP: |
1125 | case REQ_BUSY: |
814 | { |
1126 | { |
815 | struct timeval tv; |
1127 | struct timeval tv; |
816 | |
1128 | |
817 | tv.tv_sec = req->fd; |
1129 | tv.tv_sec = req->int1; |
818 | tv.tv_usec = req->fd2; |
1130 | tv.tv_usec = req->int2; |
819 | |
1131 | |
820 | req->result = select (0, 0, 0, 0, &tv); |
1132 | req->result = select (0, 0, 0, 0, &tv); |
821 | } |
1133 | } |
822 | |
1134 | |
|
|
1135 | case REQ_GROUP: |
|
|
1136 | case REQ_NOP: |
|
|
1137 | break; |
|
|
1138 | |
823 | case REQ_QUIT: |
1139 | case REQ_QUIT: |
824 | break; |
1140 | goto quit; |
825 | |
1141 | |
826 | default: |
1142 | default: |
827 | req->result = ENOSYS; |
1143 | req->result = ENOSYS; |
828 | break; |
1144 | break; |
829 | } |
1145 | } |
830 | |
1146 | |
831 | req->errorno = errno; |
1147 | req->errorno = errno; |
832 | |
1148 | |
833 | pthread_mutex_lock (&reslock); |
1149 | LOCK (reslock); |
834 | |
1150 | |
835 | req->next = 0; |
1151 | ++npending; |
836 | |
1152 | |
837 | if (rese) |
1153 | if (!reqq_push (&res_queue, req)) |
838 | { |
|
|
839 | rese->next = req; |
|
|
840 | rese = req; |
|
|
841 | } |
|
|
842 | else |
|
|
843 | { |
|
|
844 | rese = ress = req; |
|
|
845 | |
|
|
846 | /* write a dummy byte to the pipe so fh becomes ready */ |
1154 | /* write a dummy byte to the pipe so fh becomes ready */ |
847 | write (respipe [1], &respipe, 1); |
1155 | write (respipe [1], &respipe, 1); |
848 | } |
|
|
849 | |
1156 | |
850 | pthread_mutex_unlock (&reslock); |
1157 | self->req = 0; |
|
|
1158 | worker_clear (self); |
|
|
1159 | |
|
|
1160 | UNLOCK (reslock); |
851 | } |
1161 | } |
852 | while (type != REQ_QUIT); |
1162 | |
|
|
1163 | quit: |
|
|
1164 | LOCK (wrklock); |
|
|
1165 | worker_free (self); |
|
|
1166 | UNLOCK (wrklock); |
853 | |
1167 | |
854 | return 0; |
1168 | return 0; |
855 | } |
1169 | } |
856 | |
1170 | |
857 | /*****************************************************************************/ |
1171 | /*****************************************************************************/ |
858 | |
1172 | |
859 | static void atfork_prepare (void) |
1173 | static void atfork_prepare (void) |
860 | { |
1174 | { |
861 | pthread_mutex_lock (&reqlock); |
1175 | LOCK (wrklock); |
862 | pthread_mutex_lock (&reslock); |
1176 | LOCK (reqlock); |
|
|
1177 | LOCK (reslock); |
863 | #if !HAVE_PREADWRITE |
1178 | #if !HAVE_PREADWRITE |
864 | pthread_mutex_lock (&preadwritelock); |
1179 | LOCK (preadwritelock); |
865 | #endif |
1180 | #endif |
866 | #if !HAVE_READDIR_R |
1181 | #if !HAVE_READDIR_R |
867 | pthread_mutex_lock (&readdirlock); |
1182 | LOCK (readdirlock); |
868 | #endif |
1183 | #endif |
869 | } |
1184 | } |
870 | |
1185 | |
871 | static void atfork_parent (void) |
1186 | static void atfork_parent (void) |
872 | { |
1187 | { |
873 | #if !HAVE_READDIR_R |
1188 | #if !HAVE_READDIR_R |
874 | pthread_mutex_unlock (&readdirlock); |
1189 | UNLOCK (readdirlock); |
875 | #endif |
1190 | #endif |
876 | #if !HAVE_PREADWRITE |
1191 | #if !HAVE_PREADWRITE |
877 | pthread_mutex_unlock (&preadwritelock); |
1192 | UNLOCK (preadwritelock); |
878 | #endif |
1193 | #endif |
879 | pthread_mutex_unlock (&reslock); |
1194 | UNLOCK (reslock); |
880 | pthread_mutex_unlock (&reqlock); |
1195 | UNLOCK (reqlock); |
|
|
1196 | UNLOCK (wrklock); |
881 | } |
1197 | } |
882 | |
1198 | |
883 | static void atfork_child (void) |
1199 | static void atfork_child (void) |
884 | { |
1200 | { |
885 | aio_req prv; |
1201 | aio_req prv; |
886 | |
1202 | |
|
|
1203 | while (prv = reqq_shift (&req_queue)) |
|
|
1204 | req_free (prv); |
|
|
1205 | |
|
|
1206 | while (prv = reqq_shift (&res_queue)) |
|
|
1207 | req_free (prv); |
|
|
1208 | |
|
|
1209 | while (wrk_first.next != &wrk_first) |
|
|
1210 | { |
|
|
1211 | worker *wrk = wrk_first.next; |
|
|
1212 | |
|
|
1213 | if (wrk->req) |
|
|
1214 | req_free (wrk->req); |
|
|
1215 | |
|
|
1216 | worker_clear (wrk); |
|
|
1217 | worker_free (wrk); |
|
|
1218 | } |
|
|
1219 | |
887 | started = 0; |
1220 | started = 0; |
888 | |
1221 | idle = 0; |
889 | while (reqs) |
1222 | nreqs = 0; |
890 | { |
1223 | nready = 0; |
891 | prv = reqs; |
1224 | npending = 0; |
892 | reqs = prv->next; |
|
|
893 | req_free (prv); |
|
|
894 | } |
|
|
895 | |
|
|
896 | reqs = reqe = 0; |
|
|
897 | |
|
|
898 | while (ress) |
|
|
899 | { |
|
|
900 | prv = ress; |
|
|
901 | ress = prv->next; |
|
|
902 | req_free (prv); |
|
|
903 | } |
|
|
904 | |
|
|
905 | ress = rese = 0; |
|
|
906 | |
1225 | |
907 | close (respipe [0]); |
1226 | close (respipe [0]); |
908 | close (respipe [1]); |
1227 | close (respipe [1]); |
909 | create_pipe (); |
1228 | create_pipe (); |
910 | |
1229 | |
911 | atfork_parent (); |
1230 | atfork_parent (); |
912 | } |
1231 | } |
913 | |
1232 | |
914 | #define dREQ \ |
1233 | #define dREQ \ |
915 | aio_req req; \ |
1234 | aio_req req; \ |
|
|
1235 | int req_pri = next_pri; \ |
|
|
1236 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
916 | \ |
1237 | \ |
917 | if (SvOK (callback) && !SvROK (callback)) \ |
1238 | if (SvOK (callback) && !SvROK (callback)) \ |
918 | croak ("callback must be undef or of reference type"); \ |
1239 | croak ("callback must be undef or of reference type"); \ |
919 | \ |
1240 | \ |
920 | Newz (0, req, 1, aio_cb); \ |
1241 | Newz (0, req, 1, aio_cb); \ |
921 | if (!req) \ |
1242 | if (!req) \ |
922 | croak ("out of memory during aio_req allocation"); \ |
1243 | croak ("out of memory during aio_req allocation"); \ |
923 | \ |
1244 | \ |
924 | req->callback = newSVsv (callback) |
1245 | req->callback = newSVsv (callback); \ |
|
|
1246 | req->pri = req_pri |
925 | |
1247 | |
926 | #define REQ_SEND \ |
1248 | #define REQ_SEND \ |
927 | req_send (req); \ |
1249 | req_send (req); \ |
928 | \ |
1250 | \ |
929 | if (GIMME_V != G_VOID) \ |
1251 | if (GIMME_V != G_VOID) \ |
… | |
… | |
934 | PROTOTYPES: ENABLE |
1256 | PROTOTYPES: ENABLE |
935 | |
1257 | |
936 | BOOT: |
1258 | BOOT: |
937 | { |
1259 | { |
938 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1260 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1261 | |
939 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1262 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
940 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1263 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
941 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1264 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1265 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1266 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1267 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
942 | |
1268 | |
943 | create_pipe (); |
1269 | create_pipe (); |
944 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1270 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
945 | } |
1271 | } |
946 | |
1272 | |
947 | void |
1273 | void |
948 | min_parallel (nthreads) |
1274 | max_poll_reqs (int nreqs) |
949 | int nthreads |
|
|
950 | PROTOTYPE: $ |
1275 | PROTOTYPE: $ |
|
|
1276 | CODE: |
|
|
1277 | max_poll_reqs = nreqs; |
951 | |
1278 | |
952 | void |
1279 | void |
953 | max_parallel (nthreads) |
1280 | max_poll_time (double nseconds) |
954 | int nthreads |
|
|
955 | PROTOTYPE: $ |
1281 | PROTOTYPE: $ |
|
|
1282 | CODE: |
|
|
1283 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1284 | |
|
|
1285 | void |
|
|
1286 | min_parallel (int nthreads) |
|
|
1287 | PROTOTYPE: $ |
|
|
1288 | |
|
|
1289 | void |
|
|
1290 | max_parallel (int nthreads) |
|
|
1291 | PROTOTYPE: $ |
|
|
1292 | |
|
|
1293 | void |
|
|
1294 | max_idle (int nthreads) |
|
|
1295 | PROTOTYPE: $ |
|
|
1296 | CODE: |
|
|
1297 | set_max_idle (nthreads); |
956 | |
1298 | |
957 | int |
1299 | int |
958 | max_outstanding (nreqs) |
1300 | max_outstanding (int maxreqs) |
959 | int nreqs |
1301 | PROTOTYPE: $ |
960 | PROTOTYPE: $ |
|
|
961 | CODE: |
1302 | CODE: |
962 | RETVAL = max_outstanding; |
1303 | RETVAL = max_outstanding; |
963 | max_outstanding = nreqs; |
1304 | max_outstanding = maxreqs; |
|
|
1305 | OUTPUT: |
|
|
1306 | RETVAL |
964 | |
1307 | |
965 | void |
1308 | void |
966 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1309 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
967 | SV * pathname |
1310 | SV * pathname |
968 | int flags |
1311 | int flags |
… | |
… | |
972 | PPCODE: |
1315 | PPCODE: |
973 | { |
1316 | { |
974 | dREQ; |
1317 | dREQ; |
975 | |
1318 | |
976 | req->type = REQ_OPEN; |
1319 | req->type = REQ_OPEN; |
977 | req->data = newSVsv (pathname); |
1320 | req->sv1 = newSVsv (pathname); |
978 | req->dataptr = SvPVbyte_nolen (req->data); |
1321 | req->ptr1 = SvPVbyte_nolen (pathname); |
979 | req->fd = flags; |
1322 | req->int1 = flags; |
980 | req->mode = mode; |
1323 | req->mode = mode; |
981 | |
1324 | |
982 | REQ_SEND; |
1325 | REQ_SEND; |
983 | } |
1326 | } |
984 | |
1327 | |
… | |
… | |
994 | PPCODE: |
1337 | PPCODE: |
995 | { |
1338 | { |
996 | dREQ; |
1339 | dREQ; |
997 | |
1340 | |
998 | req->type = ix; |
1341 | req->type = ix; |
999 | req->fh = newSVsv (fh); |
1342 | req->fh = newSVsv (fh); |
1000 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1343 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1001 | |
1344 | |
1002 | REQ_SEND (req); |
1345 | REQ_SEND (req); |
1003 | } |
1346 | } |
1004 | |
1347 | |
1005 | void |
1348 | void |
… | |
… | |
1014 | aio_read = REQ_READ |
1357 | aio_read = REQ_READ |
1015 | aio_write = REQ_WRITE |
1358 | aio_write = REQ_WRITE |
1016 | PROTOTYPE: $$$$$;$ |
1359 | PROTOTYPE: $$$$$;$ |
1017 | PPCODE: |
1360 | PPCODE: |
1018 | { |
1361 | { |
1019 | aio_req req; |
|
|
1020 | STRLEN svlen; |
1362 | STRLEN svlen; |
1021 | char *svptr = SvPVbyte (data, svlen); |
1363 | char *svptr = SvPVbyte (data, svlen); |
1022 | |
1364 | |
1023 | SvUPGRADE (data, SVt_PV); |
1365 | SvUPGRADE (data, SVt_PV); |
1024 | SvPOK_on (data); |
1366 | SvPOK_on (data); |
… | |
… | |
1046 | |
1388 | |
1047 | { |
1389 | { |
1048 | dREQ; |
1390 | dREQ; |
1049 | |
1391 | |
1050 | req->type = ix; |
1392 | req->type = ix; |
1051 | req->fh = newSVsv (fh); |
1393 | req->fh = newSVsv (fh); |
1052 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1394 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1053 | : IoOFP (sv_2io (fh))); |
1395 | : IoOFP (sv_2io (fh))); |
1054 | req->offset = offset; |
1396 | req->offs = offset; |
1055 | req->length = length; |
1397 | req->size = length; |
1056 | req->data = SvREFCNT_inc (data); |
1398 | req->sv1 = SvREFCNT_inc (data); |
1057 | req->dataptr = (char *)svptr + dataoffset; |
1399 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1400 | req->stroffset = dataoffset; |
1058 | |
1401 | |
1059 | if (!SvREADONLY (data)) |
1402 | if (!SvREADONLY (data)) |
1060 | { |
1403 | { |
1061 | SvREADONLY_on (data); |
1404 | SvREADONLY_on (data); |
1062 | req->data2ptr = (void *)data; |
1405 | req->flags |= FLAG_DATA_RO_OFF; |
1063 | } |
1406 | } |
1064 | |
1407 | |
1065 | REQ_SEND; |
1408 | REQ_SEND; |
1066 | } |
1409 | } |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | void |
|
|
1413 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1414 | SV * path |
|
|
1415 | SV * callback |
|
|
1416 | PROTOTYPE: $$;$ |
|
|
1417 | PPCODE: |
|
|
1418 | { |
|
|
1419 | SV *data; |
|
|
1420 | dREQ; |
|
|
1421 | |
|
|
1422 | data = newSV (NAME_MAX); |
|
|
1423 | SvPOK_on (data); |
|
|
1424 | |
|
|
1425 | req->type = REQ_READLINK; |
|
|
1426 | req->fh = newSVsv (path); |
|
|
1427 | req->ptr2 = SvPVbyte_nolen (path); |
|
|
1428 | req->sv1 = data; |
|
|
1429 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1430 | |
|
|
1431 | REQ_SEND; |
1067 | } |
1432 | } |
1068 | |
1433 | |
1069 | void |
1434 | void |
1070 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1435 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1071 | SV * out_fh |
1436 | SV * out_fh |
… | |
… | |
1077 | PPCODE: |
1442 | PPCODE: |
1078 | { |
1443 | { |
1079 | dREQ; |
1444 | dREQ; |
1080 | |
1445 | |
1081 | req->type = REQ_SENDFILE; |
1446 | req->type = REQ_SENDFILE; |
1082 | req->fh = newSVsv (out_fh); |
1447 | req->fh = newSVsv (out_fh); |
1083 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1448 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1084 | req->fh2 = newSVsv (in_fh); |
1449 | req->sv2 = newSVsv (in_fh); |
1085 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1450 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1086 | req->offset = in_offset; |
1451 | req->offs = in_offset; |
1087 | req->length = length; |
1452 | req->size = length; |
1088 | |
1453 | |
1089 | REQ_SEND; |
1454 | REQ_SEND; |
1090 | } |
1455 | } |
1091 | |
1456 | |
1092 | void |
1457 | void |
… | |
… | |
1099 | PPCODE: |
1464 | PPCODE: |
1100 | { |
1465 | { |
1101 | dREQ; |
1466 | dREQ; |
1102 | |
1467 | |
1103 | req->type = REQ_READAHEAD; |
1468 | req->type = REQ_READAHEAD; |
1104 | req->fh = newSVsv (fh); |
1469 | req->fh = newSVsv (fh); |
1105 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1470 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1106 | req->offset = offset; |
1471 | req->offs = offset; |
1107 | req->length = length; |
1472 | req->size = length; |
1108 | |
1473 | |
1109 | REQ_SEND; |
1474 | REQ_SEND; |
1110 | } |
1475 | } |
1111 | |
1476 | |
1112 | void |
1477 | void |
… | |
… | |
1128 | } |
1493 | } |
1129 | |
1494 | |
1130 | if (SvPOK (fh_or_path)) |
1495 | if (SvPOK (fh_or_path)) |
1131 | { |
1496 | { |
1132 | req->type = ix; |
1497 | req->type = ix; |
1133 | req->data = newSVsv (fh_or_path); |
1498 | req->sv1 = newSVsv (fh_or_path); |
1134 | req->dataptr = SvPVbyte_nolen (req->data); |
1499 | req->ptr1 = SvPVbyte_nolen (fh_or_path); |
1135 | } |
1500 | } |
1136 | else |
1501 | else |
1137 | { |
1502 | { |
1138 | req->type = REQ_FSTAT; |
1503 | req->type = REQ_FSTAT; |
1139 | req->fh = newSVsv (fh_or_path); |
1504 | req->fh = newSVsv (fh_or_path); |
1140 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1505 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1141 | } |
1506 | } |
1142 | |
1507 | |
1143 | REQ_SEND; |
1508 | REQ_SEND; |
1144 | } |
1509 | } |
1145 | |
1510 | |
1146 | void |
1511 | void |
1147 | aio_unlink (pathname,callback=&PL_sv_undef) |
1512 | aio_unlink (pathname,callback=&PL_sv_undef) |
1148 | SV * pathname |
1513 | SV * pathname |
1149 | SV * callback |
1514 | SV * callback |
1150 | ALIAS: |
1515 | ALIAS: |
1151 | aio_unlink = REQ_UNLINK |
1516 | aio_unlink = REQ_UNLINK |
1152 | aio_rmdir = REQ_RMDIR |
1517 | aio_rmdir = REQ_RMDIR |
1153 | aio_readdir = REQ_READDIR |
1518 | aio_readdir = REQ_READDIR |
1154 | PPCODE: |
1519 | PPCODE: |
1155 | { |
1520 | { |
1156 | dREQ; |
1521 | dREQ; |
1157 | |
1522 | |
1158 | req->type = ix; |
1523 | req->type = ix; |
1159 | req->data = newSVsv (pathname); |
1524 | req->sv1 = newSVsv (pathname); |
1160 | req->dataptr = SvPVbyte_nolen (req->data); |
1525 | req->ptr1 = SvPVbyte_nolen (pathname); |
1161 | |
1526 | |
1162 | REQ_SEND; |
1527 | REQ_SEND; |
1163 | } |
1528 | } |
1164 | |
1529 | |
1165 | void |
1530 | void |
1166 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1531 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1167 | SV * oldpath |
1532 | SV * oldpath |
1168 | SV * newpath |
1533 | SV * newpath |
1169 | SV * callback |
1534 | SV * callback |
1170 | ALIAS: |
1535 | ALIAS: |
1171 | aio_link = REQ_LINK |
1536 | aio_link = REQ_LINK |
1172 | aio_symlink = REQ_SYMLINK |
1537 | aio_symlink = REQ_SYMLINK |
1173 | aio_rename = REQ_RENAME |
1538 | aio_rename = REQ_RENAME |
1174 | PPCODE: |
1539 | PPCODE: |
1175 | { |
1540 | { |
1176 | dREQ; |
1541 | dREQ; |
1177 | |
1542 | |
1178 | req->type = ix; |
1543 | req->type = ix; |
1179 | req->fh = newSVsv (oldpath); |
1544 | req->fh = newSVsv (oldpath); |
1180 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1545 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1181 | req->data = newSVsv (newpath); |
1546 | req->sv1 = newSVsv (newpath); |
1182 | req->dataptr = SvPVbyte_nolen (req->data); |
1547 | req->ptr1 = SvPVbyte_nolen (newpath); |
1183 | |
1548 | |
1184 | REQ_SEND; |
1549 | REQ_SEND; |
1185 | } |
1550 | } |
1186 | |
1551 | |
1187 | void |
1552 | void |
1188 | aio_sleep (delay,callback=&PL_sv_undef) |
1553 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
1189 | double delay |
1554 | SV * pathname |
1190 | SV * callback |
1555 | SV * callback |
|
|
1556 | UV mode |
|
|
1557 | UV dev |
1191 | PPCODE: |
1558 | PPCODE: |
1192 | { |
1559 | { |
1193 | dREQ; |
1560 | dREQ; |
|
|
1561 | |
|
|
1562 | req->type = REQ_MKNOD; |
|
|
1563 | req->sv1 = newSVsv (pathname); |
|
|
1564 | req->ptr1 = SvPVbyte_nolen (pathname); |
|
|
1565 | req->mode = (mode_t)mode; |
|
|
1566 | req->offs = dev; |
|
|
1567 | |
|
|
1568 | REQ_SEND; |
|
|
1569 | } |
1194 | |
1570 | |
|
|
1571 | void |
|
|
1572 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1573 | double delay |
|
|
1574 | SV * callback |
|
|
1575 | PPCODE: |
|
|
1576 | { |
|
|
1577 | dREQ; |
|
|
1578 | |
1195 | req->type = REQ_SLEEP; |
1579 | req->type = REQ_BUSY; |
1196 | req->fd = delay < 0. ? 0 : delay; |
1580 | req->int1 = delay < 0. ? 0 : delay; |
1197 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1581 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
1198 | |
1582 | |
1199 | REQ_SEND; |
1583 | REQ_SEND; |
1200 | } |
1584 | } |
1201 | |
1585 | |
1202 | void |
1586 | void |
… | |
… | |
1204 | SV * callback |
1588 | SV * callback |
1205 | PROTOTYPE: ;$ |
1589 | PROTOTYPE: ;$ |
1206 | PPCODE: |
1590 | PPCODE: |
1207 | { |
1591 | { |
1208 | dREQ; |
1592 | dREQ; |
|
|
1593 | |
1209 | req->type = REQ_GROUP; |
1594 | req->type = REQ_GROUP; |
|
|
1595 | |
1210 | req_send (req); |
1596 | req_send (req); |
1211 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1597 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1212 | } |
1598 | } |
|
|
1599 | |
|
|
1600 | void |
|
|
1601 | aio_nop (callback=&PL_sv_undef) |
|
|
1602 | SV * callback |
|
|
1603 | PPCODE: |
|
|
1604 | { |
|
|
1605 | dREQ; |
|
|
1606 | |
|
|
1607 | req->type = REQ_NOP; |
|
|
1608 | |
|
|
1609 | REQ_SEND; |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | int |
|
|
1613 | aioreq_pri (int pri = 0) |
|
|
1614 | PROTOTYPE: ;$ |
|
|
1615 | CODE: |
|
|
1616 | RETVAL = next_pri - PRI_BIAS; |
|
|
1617 | if (items > 0) |
|
|
1618 | { |
|
|
1619 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1620 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1621 | next_pri = pri + PRI_BIAS; |
|
|
1622 | } |
|
|
1623 | OUTPUT: |
|
|
1624 | RETVAL |
|
|
1625 | |
|
|
1626 | void |
|
|
1627 | aioreq_nice (int nice = 0) |
|
|
1628 | CODE: |
|
|
1629 | nice = next_pri - nice; |
|
|
1630 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1631 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1632 | next_pri = nice + PRI_BIAS; |
1213 | |
1633 | |
1214 | void |
1634 | void |
1215 | flush () |
1635 | flush () |
1216 | PROTOTYPE: |
1636 | PROTOTYPE: |
1217 | CODE: |
1637 | CODE: |
1218 | while (nreqs) |
1638 | while (nreqs) |
1219 | { |
1639 | { |
1220 | poll_wait (); |
1640 | poll_wait (); |
1221 | poll_cb (); |
1641 | poll_cb (0); |
1222 | } |
1642 | } |
1223 | |
1643 | |
1224 | void |
1644 | void |
1225 | poll() |
1645 | poll() |
1226 | PROTOTYPE: |
1646 | PROTOTYPE: |
1227 | CODE: |
1647 | CODE: |
1228 | if (nreqs) |
1648 | if (nreqs) |
1229 | { |
1649 | { |
1230 | poll_wait (); |
1650 | poll_wait (); |
1231 | poll_cb (); |
1651 | poll_cb (0); |
1232 | } |
1652 | } |
1233 | |
1653 | |
1234 | int |
1654 | int |
1235 | poll_fileno() |
1655 | poll_fileno() |
1236 | PROTOTYPE: |
1656 | PROTOTYPE: |
… | |
… | |
1260 | CODE: |
1680 | CODE: |
1261 | RETVAL = nreqs; |
1681 | RETVAL = nreqs; |
1262 | OUTPUT: |
1682 | OUTPUT: |
1263 | RETVAL |
1683 | RETVAL |
1264 | |
1684 | |
1265 | PROTOTYPES: DISABLE |
1685 | int |
1266 | |
1686 | nready() |
1267 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1268 | |
|
|
1269 | void |
|
|
1270 | cancel (aio_req_ornot req) |
|
|
1271 | PROTOTYPE: |
1687 | PROTOTYPE: |
1272 | CODE: |
1688 | CODE: |
|
|
1689 | RETVAL = get_nready (); |
|
|
1690 | OUTPUT: |
|
|
1691 | RETVAL |
|
|
1692 | |
|
|
1693 | int |
|
|
1694 | npending() |
|
|
1695 | PROTOTYPE: |
|
|
1696 | CODE: |
|
|
1697 | RETVAL = get_npending (); |
|
|
1698 | OUTPUT: |
|
|
1699 | RETVAL |
|
|
1700 | |
|
|
1701 | int |
|
|
1702 | nthreads() |
|
|
1703 | PROTOTYPE: |
|
|
1704 | CODE: |
|
|
1705 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1706 | RETVAL = started; |
|
|
1707 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1708 | OUTPUT: |
|
|
1709 | RETVAL |
|
|
1710 | |
|
|
1711 | PROTOTYPES: DISABLE |
|
|
1712 | |
|
|
1713 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1714 | |
|
|
1715 | void |
|
|
1716 | cancel (aio_req_ornot req) |
|
|
1717 | CODE: |
1273 | req_cancel (req); |
1718 | req_cancel (req); |
|
|
1719 | |
|
|
1720 | void |
|
|
1721 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1722 | CODE: |
|
|
1723 | SvREFCNT_dec (req->callback); |
|
|
1724 | req->callback = newSVsv (callback); |
1274 | |
1725 | |
1275 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1726 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1276 | |
1727 | |
1277 | void |
1728 | void |
1278 | add (aio_req grp, ...) |
1729 | add (aio_req grp, ...) |
1279 | PPCODE: |
1730 | PPCODE: |
1280 | { |
1731 | { |
1281 | int i; |
1732 | int i; |
|
|
1733 | aio_req req; |
1282 | |
1734 | |
1283 | if (grp->fd == 2) |
1735 | if (grp->int1 == 2) |
1284 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1736 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1285 | |
1737 | |
1286 | for (i = 1; i < items; ++i ) |
1738 | for (i = 1; i < items; ++i ) |
1287 | { |
1739 | { |
1288 | if (GIMME_V != G_VOID) |
1740 | if (GIMME_V != G_VOID) |
1289 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1741 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1290 | |
1742 | |
1291 | aio_req req = SvAIO_REQ (ST (i)); |
1743 | req = SvAIO_REQ (ST (i)); |
1292 | |
1744 | |
1293 | if (req) |
1745 | if (req) |
1294 | { |
1746 | { |
1295 | ++grp->length; |
1747 | ++grp->size; |
1296 | req->grp = grp; |
1748 | req->grp = grp; |
1297 | |
1749 | |
1298 | req->grp_prev = 0; |
1750 | req->grp_prev = 0; |
1299 | req->grp_next = grp->grp_first; |
1751 | req->grp_next = grp->grp_first; |
1300 | |
1752 | |
… | |
… | |
1305 | } |
1757 | } |
1306 | } |
1758 | } |
1307 | } |
1759 | } |
1308 | |
1760 | |
1309 | void |
1761 | void |
1310 | lock (aio_req grp) |
1762 | cancel_subs (aio_req_ornot req) |
1311 | CODE: |
1763 | CODE: |
1312 | ++grp->length; |
1764 | req_cancel_subs (req); |
1313 | |
1765 | |
1314 | void |
1766 | void |
1315 | unlock (aio_req grp) |
1767 | result (aio_req grp, ...) |
|
|
1768 | CODE: |
|
|
1769 | { |
|
|
1770 | int i; |
|
|
1771 | AV *av; |
|
|
1772 | |
|
|
1773 | grp->errorno = errno; |
|
|
1774 | |
|
|
1775 | av = newAV (); |
|
|
1776 | |
|
|
1777 | for (i = 1; i < items; ++i ) |
|
|
1778 | av_push (av, newSVsv (ST (i))); |
|
|
1779 | |
|
|
1780 | SvREFCNT_dec (grp->sv1); |
|
|
1781 | grp->sv1 = (SV *)av; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | void |
|
|
1785 | errno (aio_req grp, int errorno = errno) |
|
|
1786 | CODE: |
|
|
1787 | grp->errorno = errorno; |
|
|
1788 | |
|
|
1789 | void |
|
|
1790 | limit (aio_req grp, int limit) |
1316 | CODE: |
1791 | CODE: |
|
|
1792 | grp->int2 = limit; |
1317 | aio_grp_dec (grp); |
1793 | aio_grp_feed (grp); |
1318 | |
1794 | |
1319 | void |
1795 | void |
1320 | feeder_limit (aio_req grp, int limit) |
1796 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1321 | CODE: |
1797 | CODE: |
1322 | grp->fd2 = limit; |
1798 | { |
|
|
1799 | SvREFCNT_dec (grp->sv2); |
|
|
1800 | grp->sv2 = newSVsv (callback); |
|
|
1801 | |
|
|
1802 | if (grp->int2 <= 0) |
|
|
1803 | grp->int2 = 2; |
|
|
1804 | |
1323 | aio_grp_feed (grp); |
1805 | aio_grp_feed (grp); |
1324 | |
|
|
1325 | void |
|
|
1326 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1327 | CODE: |
|
|
1328 | { |
|
|
1329 | SvREFCNT_dec (grp->fh2); |
|
|
1330 | grp->fh2 = newSVsv (callback); |
|
|
1331 | |
|
|
1332 | if (grp->fd2 <= 0) |
|
|
1333 | grp->fd2 = 2; |
|
|
1334 | |
|
|
1335 | aio_grp_feed (grp); |
|
|
1336 | } |
1806 | } |
1337 | |
1807 | |