1 | #define PERL_NO_GET_CONTEXT |
1 | #include "xthread.h" |
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2 | |
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3 | #include <errno.h> |
2 | |
4 | |
3 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
4 | #include "perl.h" |
6 | #include "perl.h" |
5 | #include "XSUB.h" |
7 | #include "XSUB.h" |
6 | |
8 | |
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9 | #include <stddef.h> |
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10 | #include <stdlib.h> |
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11 | #include <errno.h> |
7 | #include <sys/types.h> |
12 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
9 | #include <unistd.h> |
14 | #include <limits.h> |
10 | #include <fcntl.h> |
15 | #include <fcntl.h> |
11 | #include <signal.h> |
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12 | #include <sched.h> |
16 | #include <sched.h> |
13 | #include <endian.h> |
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14 | |
17 | |
15 | #include <pthread.h> |
18 | #ifdef _WIN32 |
16 | #include <sys/syscall.h> |
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17 | |
19 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | # define SIGIO 0 |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef Direntry_t X_DIRENT; |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | #undef malloc |
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23 | #undef free |
21 | |
24 | |
22 | #if __i386 || __amd64 |
25 | // perl overrides all those nice win32 functions |
23 | # define STACKSIZE ( 256 * sizeof (long)) |
26 | # undef open |
24 | #elif __ia64 |
27 | # undef read |
25 | # define STACKSIZE (8192 * sizeof (long)) |
28 | # undef write |
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29 | # undef stat |
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30 | # undef fstat |
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31 | # define lstat stat |
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32 | # undef truncate |
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33 | # undef ftruncate |
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34 | # undef open |
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35 | # undef close |
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36 | # undef unlink |
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37 | # undef rmdir |
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38 | # undef rename |
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39 | # undef lseek |
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40 | |
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41 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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42 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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43 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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44 | # define symlink(a,b) (errno = ENOSYS, -1) |
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45 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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46 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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47 | # define truncate(a,b) (errno = ENOSYS, -1) |
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48 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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49 | # define fsync(fd) _commit (fd) |
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50 | # define opendir(fd) (errno = ENOSYS, 0) |
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51 | # define readdir(fd) (errno = ENOSYS, -1) |
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52 | # define closedir(fd) (errno = ENOSYS, -1) |
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53 | # define mkdir(a,b) mkdir (a) |
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54 | |
26 | #else |
55 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
56 | |
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57 | # include "autoconf/config.h" |
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58 | # include <sys/time.h> |
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59 | # include <sys/select.h> |
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60 | # include <unistd.h> |
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61 | # include <utime.h> |
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62 | # include <signal.h> |
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63 | typedef struct dirent X_DIRENT; |
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64 | |
28 | #endif |
65 | #endif |
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66 | |
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67 | #if HAVE_SENDFILE |
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68 | # if __linux |
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69 | # include <sys/sendfile.h> |
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70 | # elif __freebsd |
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71 | # include <sys/socket.h> |
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72 | # include <sys/uio.h> |
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73 | # elif __hpux |
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74 | # include <sys/socket.h> |
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75 | # elif __solaris /* not yet */ |
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76 | # include <sys/sendfile.h> |
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77 | # else |
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78 | # error sendfile support requested but not available |
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79 | # endif |
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80 | #endif |
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81 | |
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82 | /* number of seconds after which idle threads exit */ |
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83 | #define IDLE_TIMEOUT 10 |
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84 | |
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85 | /* used for struct dirent, AIX doesn't provide it */ |
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86 | #ifndef NAME_MAX |
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87 | # define NAME_MAX 4096 |
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88 | #endif |
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89 | |
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90 | /* buffer size for various temporary buffers */ |
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91 | #define AIO_BUFSIZE 65536 |
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92 | |
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93 | /* use NV for 32 bit perls as it allows larger offsets */ |
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94 | #if IVSIZE >= 8 |
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95 | # define SvVAL64 SvIV |
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96 | #else |
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97 | # define SvVAL64 SvNV |
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98 | #endif |
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99 | |
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100 | #define dBUF \ |
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101 | char *aio_buf; \ |
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102 | X_LOCK (wrklock); \ |
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103 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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104 | X_UNLOCK (wrklock); \ |
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105 | if (!aio_buf) \ |
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106 | return -1; |
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107 | |
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108 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
29 | |
109 | |
30 | enum { |
110 | enum { |
31 | REQ_QUIT, |
111 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
112 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
113 | REQ_READ, REQ_WRITE, |
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114 | REQ_READAHEAD, REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
115 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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116 | REQ_TRUNCATE, REQ_FTRUNCATE, |
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117 | REQ_UTIME, REQ_FUTIME, |
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118 | REQ_CHMOD, REQ_FCHMOD, |
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119 | REQ_CHOWN, REQ_FCHOWN, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
120 | REQ_FSYNC, REQ_FDATASYNC, |
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121 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
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122 | REQ_MKNOD, REQ_READDIR, |
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123 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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124 | REQ_GROUP, REQ_NOP, |
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125 | REQ_BUSY, |
36 | }; |
126 | }; |
37 | |
127 | |
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128 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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129 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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130 | |
38 | typedef struct aio_cb { |
131 | typedef struct aio_cb |
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132 | { |
39 | struct aio_cb *next; |
133 | struct aio_cb *volatile next; |
40 | |
134 | |
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135 | SV *callback; |
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136 | SV *sv1, *sv2; |
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137 | void *ptr1, *ptr2; |
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138 | off_t offs; |
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139 | size_t size; |
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140 | ssize_t result; |
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141 | double nv1, nv2; |
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142 | |
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143 | STRLEN stroffset; |
41 | int type; |
144 | int type; |
42 | |
145 | int int1, int2, int3; |
43 | int fd; |
146 | int errorno; |
44 | off_t offset; |
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45 | size_t length; |
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46 | ssize_t result; |
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47 | mode_t mode; /* open */ |
147 | mode_t mode; /* open */ |
48 | int errorno; |
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49 | SV *data, *callback; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
148 | |
53 | Stat_t *statdata; |
149 | unsigned char flags; |
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150 | unsigned char pri; |
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151 | |
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152 | SV *self; /* the perl counterpart of this request, if any */ |
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153 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
54 | } aio_cb; |
154 | } aio_cb; |
55 | |
155 | |
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156 | enum { |
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157 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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158 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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159 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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160 | }; |
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161 | |
56 | typedef aio_cb *aio_req; |
162 | typedef aio_cb *aio_req; |
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163 | typedef aio_cb *aio_req_ornot; |
57 | |
164 | |
58 | static int started; |
165 | enum { |
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166 | PRI_MIN = -4, |
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167 | PRI_MAX = 4, |
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168 | |
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169 | DEFAULT_PRI = 0, |
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170 | PRI_BIAS = -PRI_MIN, |
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171 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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172 | }; |
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173 | |
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174 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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175 | |
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176 | static unsigned int max_poll_time = 0; |
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177 | static unsigned int max_poll_reqs = 0; |
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178 | |
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179 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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180 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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181 | { |
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182 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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183 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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184 | } |
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185 | |
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186 | static thread_t main_tid; |
59 | static int nreqs; |
187 | static int main_sig; |
60 | static int reqpipe[2], respipe[2]; |
188 | static int block_sig_level; |
61 | |
189 | |
62 | static aio_req qs, qe; /* queue start, queue end */ |
190 | void block_sig () |
63 | |
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64 | static void *aio_proc(void *arg); |
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65 | |
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66 | static void |
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67 | start_thread (void) |
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68 | { |
191 | { |
69 | sigset_t fullsigset, oldsigset; |
192 | sigset_t ss; |
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193 | |
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194 | if (block_sig_level++) |
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195 | return; |
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196 | |
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197 | if (!main_sig) |
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198 | return; |
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199 | |
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200 | sigemptyset (&ss); |
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201 | sigaddset (&ss, main_sig); |
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202 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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203 | } |
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204 | |
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205 | void unblock_sig () |
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206 | { |
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207 | sigset_t ss; |
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208 | |
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209 | if (--block_sig_level) |
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210 | return; |
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211 | |
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212 | if (!main_sig) |
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213 | return; |
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214 | |
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215 | sigemptyset (&ss); |
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216 | sigaddset (&ss, main_sig); |
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217 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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218 | } |
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219 | |
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220 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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221 | |
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222 | static unsigned int started, idle, wanted; |
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223 | |
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224 | /* worker threads management */ |
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225 | static mutex_t wrklock = X_MUTEX_INIT; |
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226 | |
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227 | typedef struct worker { |
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228 | /* locked by wrklock */ |
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229 | struct worker *prev, *next; |
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230 | |
70 | pthread_t tid; |
231 | thread_t tid; |
71 | pthread_attr_t attr; |
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72 | |
232 | |
73 | pthread_attr_init (&attr); |
233 | /* locked by reslock, reqlock or wrklock */ |
74 | pthread_attr_setstacksize (&attr, STACKSIZE); |
234 | aio_req req; /* currently processed request */ |
75 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
235 | void *dbuf; |
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236 | DIR *dirp; |
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237 | } worker; |
76 | |
238 | |
77 | sigfillset (&fullsigset); |
239 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
78 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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79 | |
240 | |
80 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
241 | static void worker_clear (worker *wrk) |
81 | started++; |
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82 | |
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83 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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84 | } |
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85 | |
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86 | static void |
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87 | send_reqs (void) |
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88 | { |
242 | { |
89 | /* this write is atomic */ |
243 | if (wrk->dirp) |
90 | while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs) |
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91 | { |
244 | { |
92 | qs = qs->next; |
245 | closedir (wrk->dirp); |
93 | if (!qs) qe = 0; |
246 | wrk->dirp = 0; |
94 | } |
247 | } |
95 | } |
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96 | |
248 | |
97 | static void |
249 | if (wrk->dbuf) |
98 | send_req (aio_req req) |
250 | { |
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251 | free (wrk->dbuf); |
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252 | wrk->dbuf = 0; |
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253 | } |
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254 | } |
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255 | |
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256 | static void worker_free (worker *wrk) |
99 | { |
257 | { |
100 | nreqs++; |
258 | wrk->next->prev = wrk->prev; |
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259 | wrk->prev->next = wrk->next; |
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260 | |
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261 | free (wrk); |
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262 | } |
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263 | |
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264 | static volatile unsigned int nreqs, nready, npending; |
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265 | static volatile unsigned int max_idle = 4; |
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266 | static volatile unsigned int max_outstanding = 0xffffffff; |
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267 | static int respipe [2]; |
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268 | |
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269 | static mutex_t reslock = X_MUTEX_INIT; |
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270 | static mutex_t reqlock = X_MUTEX_INIT; |
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271 | static cond_t reqwait = X_COND_INIT; |
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272 | |
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273 | #if WORDACCESS_UNSAFE |
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274 | |
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275 | static unsigned int get_nready () |
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276 | { |
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277 | unsigned int retval; |
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278 | |
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279 | X_LOCK (reqlock); |
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280 | retval = nready; |
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281 | X_UNLOCK (reqlock); |
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282 | |
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283 | return retval; |
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284 | } |
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285 | |
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286 | static unsigned int get_npending () |
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287 | { |
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288 | unsigned int retval; |
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289 | |
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290 | X_LOCK (reslock); |
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291 | retval = npending; |
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292 | X_UNLOCK (reslock); |
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293 | |
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294 | return retval; |
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295 | } |
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296 | |
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297 | static unsigned int get_nthreads () |
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298 | { |
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299 | unsigned int retval; |
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300 | |
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301 | X_LOCK (wrklock); |
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302 | retval = started; |
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303 | X_UNLOCK (wrklock); |
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304 | |
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305 | return retval; |
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306 | } |
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307 | |
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308 | #else |
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309 | |
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310 | # define get_nready() nready |
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311 | # define get_npending() npending |
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312 | # define get_nthreads() started |
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313 | |
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314 | #endif |
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315 | |
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316 | /* |
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317 | * a somewhat faster data structure might be nice, but |
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318 | * with 8 priorities this actually needs <20 insns |
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319 | * per shift, the most expensive operation. |
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320 | */ |
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321 | typedef struct { |
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322 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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323 | int size; |
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324 | } reqq; |
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325 | |
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326 | static reqq req_queue; |
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327 | static reqq res_queue; |
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328 | |
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329 | int reqq_push (reqq *q, aio_req req) |
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330 | { |
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331 | int pri = req->pri; |
101 | req->next = 0; |
332 | req->next = 0; |
102 | |
333 | |
103 | if (qe) |
334 | if (q->qe[pri]) |
104 | { |
335 | { |
105 | qe->next = req; |
336 | q->qe[pri]->next = req; |
106 | qe = req; |
337 | q->qe[pri] = req; |
107 | } |
338 | } |
108 | else |
339 | else |
109 | qe = qs = req; |
340 | q->qe[pri] = q->qs[pri] = req; |
110 | |
341 | |
111 | send_reqs (); |
342 | return q->size++; |
112 | } |
343 | } |
113 | |
344 | |
114 | static void |
345 | aio_req reqq_shift (reqq *q) |
115 | end_thread (void) |
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116 | { |
346 | { |
117 | aio_req req; |
347 | int pri; |
118 | New (0, req, 1, aio_cb); |
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119 | req->type = REQ_QUIT; |
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120 | |
348 | |
121 | send_req (req); |
349 | if (!q->size) |
122 | } |
350 | return 0; |
123 | |
351 | |
124 | static void |
352 | --q->size; |
125 | read_write (pTHX_ |
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126 | int dowrite, int fd, off_t offset, size_t length, |
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127 | SV *data, STRLEN dataoffset, SV *callback) |
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128 | { |
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129 | aio_req req; |
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130 | STRLEN svlen; |
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131 | char *svptr = SvPV (data, svlen); |
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132 | |
353 | |
133 | SvUPGRADE (data, SVt_PV); |
354 | for (pri = NUM_PRI; pri--; ) |
134 | SvPOK_on (data); |
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135 | |
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136 | if (dataoffset < 0) |
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137 | dataoffset += svlen; |
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138 | |
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139 | if (dataoffset < 0 || dataoffset > svlen) |
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140 | croak ("data offset outside of string"); |
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141 | |
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142 | if (dowrite) |
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143 | { |
355 | { |
144 | /* write: check length and adjust. */ |
356 | aio_req req = q->qs[pri]; |
145 | if (length < 0 || length + dataoffset > svlen) |
357 | |
146 | length = svlen - dataoffset; |
358 | if (req) |
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359 | { |
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360 | if (!(q->qs[pri] = req->next)) |
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361 | q->qe[pri] = 0; |
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362 | |
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363 | return req; |
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364 | } |
147 | } |
365 | } |
148 | else |
366 | |
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367 | abort (); |
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368 | } |
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369 | |
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370 | static int poll_cb (); |
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371 | static int req_invoke (aio_req req); |
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372 | static void req_destroy (aio_req req); |
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373 | static void req_cancel (aio_req req); |
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374 | |
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375 | /* must be called at most once */ |
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376 | static SV *req_sv (aio_req req, const char *klass) |
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377 | { |
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378 | if (!req->self) |
149 | { |
379 | { |
150 | /* read: grow scalar as necessary */ |
380 | req->self = (SV *)newHV (); |
151 | svptr = SvGROW (data, length + dataoffset); |
381 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
152 | } |
382 | } |
153 | |
383 | |
154 | if (length < 0) |
384 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
155 | croak ("length must not be negative"); |
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156 | |
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157 | Newz (0, req, 1, aio_cb); |
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158 | |
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159 | if (!req) |
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160 | croak ("out of memory during aio_req allocation"); |
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161 | |
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162 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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163 | req->fd = fd; |
|
|
164 | req->offset = offset; |
|
|
165 | req->length = length; |
|
|
166 | req->data = SvREFCNT_inc (data); |
|
|
167 | req->dataptr = (char *)svptr + dataoffset; |
|
|
168 | req->callback = SvREFCNT_inc (callback); |
|
|
169 | |
|
|
170 | send_req (req); |
|
|
171 | } |
385 | } |
172 | |
386 | |
173 | static void |
387 | static aio_req SvAIO_REQ (SV *sv) |
174 | poll_wait () |
|
|
175 | { |
388 | { |
176 | fd_set rfd; |
389 | MAGIC *mg; |
177 | FD_ZERO(&rfd); |
|
|
178 | FD_SET(respipe[0], &rfd); |
|
|
179 | |
390 | |
180 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
391 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
181 | } |
392 | croak ("object of class " AIO_REQ_KLASS " expected"); |
182 | |
393 | |
183 | static int |
394 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
184 | poll_cb (pTHX) |
395 | |
|
|
396 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
397 | } |
|
|
398 | |
|
|
399 | static void aio_grp_feed (aio_req grp) |
|
|
400 | { |
|
|
401 | block_sig (); |
|
|
402 | |
|
|
403 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
|
|
404 | { |
|
|
405 | int old_len = grp->size; |
|
|
406 | |
|
|
407 | if (grp->sv2 && SvOK (grp->sv2)) |
|
|
408 | { |
|
|
409 | dSP; |
|
|
410 | |
|
|
411 | ENTER; |
|
|
412 | SAVETMPS; |
|
|
413 | PUSHMARK (SP); |
|
|
414 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
415 | PUTBACK; |
|
|
416 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
|
|
417 | SPAGAIN; |
|
|
418 | FREETMPS; |
|
|
419 | LEAVE; |
|
|
420 | } |
|
|
421 | |
|
|
422 | /* stop if no progress has been made */ |
|
|
423 | if (old_len == grp->size) |
|
|
424 | { |
|
|
425 | SvREFCNT_dec (grp->sv2); |
|
|
426 | grp->sv2 = 0; |
|
|
427 | break; |
|
|
428 | } |
|
|
429 | } |
|
|
430 | |
|
|
431 | unblock_sig (); |
|
|
432 | } |
|
|
433 | |
|
|
434 | static void aio_grp_dec (aio_req grp) |
|
|
435 | { |
|
|
436 | --grp->size; |
|
|
437 | |
|
|
438 | /* call feeder, if applicable */ |
|
|
439 | aio_grp_feed (grp); |
|
|
440 | |
|
|
441 | /* finish, if done */ |
|
|
442 | if (!grp->size && grp->int1) |
|
|
443 | { |
|
|
444 | block_sig (); |
|
|
445 | |
|
|
446 | if (!req_invoke (grp)) |
|
|
447 | { |
|
|
448 | req_destroy (grp); |
|
|
449 | unblock_sig (); |
|
|
450 | croak (0); |
|
|
451 | } |
|
|
452 | |
|
|
453 | req_destroy (grp); |
|
|
454 | unblock_sig (); |
|
|
455 | } |
|
|
456 | } |
|
|
457 | |
|
|
458 | static int req_invoke (aio_req req) |
185 | { |
459 | { |
186 | dSP; |
460 | dSP; |
187 | int count = 0; |
|
|
188 | aio_req req; |
|
|
189 | |
461 | |
190 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
462 | if (req->flags & FLAG_SV2_RO_OFF) |
|
|
463 | SvREADONLY_off (req->sv2); |
|
|
464 | |
|
|
465 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
191 | { |
466 | { |
192 | nreqs--; |
467 | ENTER; |
|
|
468 | SAVETMPS; |
|
|
469 | PUSHMARK (SP); |
|
|
470 | EXTEND (SP, 1); |
193 | |
471 | |
194 | if (req->type == REQ_QUIT) |
472 | switch (req->type) |
195 | started--; |
|
|
196 | else |
|
|
197 | { |
473 | { |
198 | int errorno = errno; |
474 | case REQ_READDIR: |
199 | errno = req->errorno; |
|
|
200 | |
|
|
201 | if (req->type == REQ_READ) |
|
|
202 | SvCUR_set (req->data, req->dataoffset |
|
|
203 | + req->result > 0 ? req->result : 0); |
|
|
204 | |
|
|
205 | if (req->data) |
|
|
206 | SvREFCNT_dec (req->data); |
|
|
207 | |
|
|
208 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
209 | { |
475 | { |
210 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
476 | SV *rv = &PL_sv_undef; |
211 | PL_laststatval = req->result; |
|
|
212 | PL_statcache = *(req->statdata); |
|
|
213 | |
477 | |
214 | Safefree (req->statdata); |
478 | if (req->result >= 0) |
|
|
479 | { |
|
|
480 | int i; |
|
|
481 | char *buf = req->ptr2; |
|
|
482 | AV *av = newAV (); |
|
|
483 | |
|
|
484 | av_extend (av, req->result - 1); |
|
|
485 | |
|
|
486 | for (i = 0; i < req->result; ++i) |
|
|
487 | { |
|
|
488 | SV *sv = newSVpv (buf, 0); |
|
|
489 | |
|
|
490 | av_store (av, i, sv); |
|
|
491 | buf += SvCUR (sv) + 1; |
|
|
492 | } |
|
|
493 | |
|
|
494 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
495 | } |
|
|
496 | |
|
|
497 | PUSHs (rv); |
215 | } |
498 | } |
|
|
499 | break; |
216 | |
500 | |
217 | PUSHMARK (SP); |
501 | case REQ_OPEN: |
218 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
219 | |
|
|
220 | if (req->type == REQ_OPEN) |
|
|
221 | { |
502 | { |
222 | /* convert fd to fh */ |
503 | /* convert fd to fh */ |
223 | SV *fh; |
504 | SV *fh; |
224 | |
505 | |
|
|
506 | PUSHs (sv_2mortal (newSViv (req->result))); |
225 | PUTBACK; |
507 | PUTBACK; |
226 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
508 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
227 | SPAGAIN; |
509 | SPAGAIN; |
228 | |
510 | |
229 | fh = POPs; |
511 | fh = POPs; |
230 | |
|
|
231 | PUSHMARK (SP); |
512 | PUSHMARK (SP); |
232 | XPUSHs (fh); |
513 | XPUSHs (fh); |
233 | } |
514 | } |
|
|
515 | break; |
234 | |
516 | |
235 | PUTBACK; |
517 | case REQ_GROUP: |
236 | call_sv (req->callback, G_VOID | G_EVAL); |
518 | req->int1 = 2; /* mark group as finished */ |
237 | SPAGAIN; |
519 | |
|
|
520 | if (req->sv1) |
238 | |
521 | { |
239 | if (req->callback) |
522 | int i; |
240 | SvREFCNT_dec (req->callback); |
523 | AV *av = (AV *)req->sv1; |
241 | |
524 | |
242 | errno = errorno; |
525 | EXTEND (SP, AvFILL (av) + 1); |
243 | count++; |
526 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
527 | PUSHs (*av_fetch (av, i, 0)); |
244 | } |
528 | } |
|
|
529 | break; |
245 | |
530 | |
246 | Safefree (req); |
531 | case REQ_NOP: |
247 | } |
|
|
248 | |
|
|
249 | if (qs) |
|
|
250 | send_reqs (); |
|
|
251 | |
|
|
252 | return count; |
|
|
253 | } |
|
|
254 | |
|
|
255 | static void * |
|
|
256 | aio_proc (void *thr_arg) |
|
|
257 | { |
|
|
258 | aio_req req; |
|
|
259 | |
|
|
260 | /* then loop */ |
|
|
261 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
|
|
262 | { |
|
|
263 | errno = 0; /* strictly unnecessary */ |
|
|
264 | |
|
|
265 | switch (req->type) |
|
|
266 | { |
|
|
267 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
268 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
269 | #if SYS_readahead |
|
|
270 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
271 | #else |
|
|
272 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
273 | #endif |
|
|
274 | |
|
|
275 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
|
|
276 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
277 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
278 | |
|
|
279 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
280 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
281 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
282 | |
|
|
283 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
284 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
285 | |
|
|
286 | case REQ_QUIT: |
532 | case REQ_BUSY: |
287 | write (respipe[1], (void *)&req, sizeof (req)); |
533 | break; |
288 | return 0; |
534 | |
|
|
535 | case REQ_READLINK: |
|
|
536 | if (req->result > 0) |
|
|
537 | { |
|
|
538 | SvCUR_set (req->sv2, req->result); |
|
|
539 | *SvEND (req->sv2) = 0; |
|
|
540 | PUSHs (req->sv2); |
|
|
541 | } |
|
|
542 | break; |
|
|
543 | |
|
|
544 | case REQ_STAT: |
|
|
545 | case REQ_LSTAT: |
|
|
546 | case REQ_FSTAT: |
|
|
547 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
548 | PL_laststatval = req->result; |
|
|
549 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
550 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
551 | break; |
|
|
552 | |
|
|
553 | case REQ_READ: |
|
|
554 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
555 | *SvEND (req->sv2) = 0; |
|
|
556 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
557 | break; |
289 | |
558 | |
290 | default: |
559 | default: |
291 | req->result = ENOSYS; |
560 | PUSHs (sv_2mortal (newSViv (req->result))); |
292 | break; |
561 | break; |
293 | } |
562 | } |
294 | |
563 | |
|
|
564 | errno = req->errorno; |
|
|
565 | |
|
|
566 | PUTBACK; |
|
|
567 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
568 | SPAGAIN; |
|
|
569 | |
|
|
570 | FREETMPS; |
|
|
571 | LEAVE; |
|
|
572 | } |
|
|
573 | |
|
|
574 | if (req->grp) |
|
|
575 | { |
|
|
576 | aio_req grp = req->grp; |
|
|
577 | |
|
|
578 | /* unlink request */ |
|
|
579 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
580 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
581 | |
|
|
582 | if (grp->grp_first == req) |
|
|
583 | grp->grp_first = req->grp_next; |
|
|
584 | |
|
|
585 | aio_grp_dec (grp); |
|
|
586 | } |
|
|
587 | |
|
|
588 | return !SvTRUE (ERRSV); |
|
|
589 | } |
|
|
590 | |
|
|
591 | static void req_destroy (aio_req req) |
|
|
592 | { |
|
|
593 | if (req->self) |
|
|
594 | { |
|
|
595 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
596 | SvREFCNT_dec (req->self); |
|
|
597 | } |
|
|
598 | |
|
|
599 | SvREFCNT_dec (req->sv1); |
|
|
600 | SvREFCNT_dec (req->sv2); |
|
|
601 | SvREFCNT_dec (req->callback); |
|
|
602 | |
|
|
603 | if (req->flags & FLAG_PTR2_FREE) |
|
|
604 | free (req->ptr2); |
|
|
605 | |
|
|
606 | Safefree (req); |
|
|
607 | } |
|
|
608 | |
|
|
609 | static void req_cancel_subs (aio_req grp) |
|
|
610 | { |
|
|
611 | aio_req sub; |
|
|
612 | |
|
|
613 | if (grp->type != REQ_GROUP) |
|
|
614 | return; |
|
|
615 | |
|
|
616 | SvREFCNT_dec (grp->sv2); |
|
|
617 | grp->sv2 = 0; |
|
|
618 | |
|
|
619 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
620 | req_cancel (sub); |
|
|
621 | } |
|
|
622 | |
|
|
623 | static void req_cancel (aio_req req) |
|
|
624 | { |
|
|
625 | req->flags |= FLAG_CANCELLED; |
|
|
626 | |
|
|
627 | req_cancel_subs (req); |
|
|
628 | } |
|
|
629 | |
|
|
630 | X_THREAD_PROC (aio_proc); |
|
|
631 | |
|
|
632 | static void start_thread (void) |
|
|
633 | { |
|
|
634 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
635 | |
|
|
636 | if (!wrk) |
|
|
637 | croak ("unable to allocate worker thread data"); |
|
|
638 | |
|
|
639 | X_LOCK (wrklock); |
|
|
640 | |
|
|
641 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
|
|
642 | { |
|
|
643 | wrk->prev = &wrk_first; |
|
|
644 | wrk->next = wrk_first.next; |
|
|
645 | wrk_first.next->prev = wrk; |
|
|
646 | wrk_first.next = wrk; |
|
|
647 | ++started; |
|
|
648 | } |
|
|
649 | else |
|
|
650 | free (wrk); |
|
|
651 | |
|
|
652 | X_UNLOCK (wrklock); |
|
|
653 | } |
|
|
654 | |
|
|
655 | static void maybe_start_thread () |
|
|
656 | { |
|
|
657 | if (get_nthreads () >= wanted) |
|
|
658 | return; |
|
|
659 | |
|
|
660 | /* todo: maybe use idle here, but might be less exact */ |
|
|
661 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
662 | return; |
|
|
663 | |
|
|
664 | start_thread (); |
|
|
665 | } |
|
|
666 | |
|
|
667 | static void req_send (aio_req req) |
|
|
668 | { |
|
|
669 | block_sig (); |
|
|
670 | |
|
|
671 | ++nreqs; |
|
|
672 | |
|
|
673 | X_LOCK (reqlock); |
|
|
674 | ++nready; |
|
|
675 | reqq_push (&req_queue, req); |
|
|
676 | X_COND_SIGNAL (reqwait); |
|
|
677 | X_UNLOCK (reqlock); |
|
|
678 | |
|
|
679 | unblock_sig (); |
|
|
680 | |
|
|
681 | maybe_start_thread (); |
|
|
682 | } |
|
|
683 | |
|
|
684 | static void end_thread (void) |
|
|
685 | { |
|
|
686 | aio_req req; |
|
|
687 | |
|
|
688 | Newz (0, req, 1, aio_cb); |
|
|
689 | |
|
|
690 | req->type = REQ_QUIT; |
|
|
691 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
692 | |
|
|
693 | X_LOCK (reqlock); |
|
|
694 | reqq_push (&req_queue, req); |
|
|
695 | X_COND_SIGNAL (reqwait); |
|
|
696 | X_UNLOCK (reqlock); |
|
|
697 | |
|
|
698 | X_LOCK (wrklock); |
|
|
699 | --started; |
|
|
700 | X_UNLOCK (wrklock); |
|
|
701 | } |
|
|
702 | |
|
|
703 | static void set_max_idle (int nthreads) |
|
|
704 | { |
|
|
705 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
706 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
707 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
708 | } |
|
|
709 | |
|
|
710 | static void min_parallel (int nthreads) |
|
|
711 | { |
|
|
712 | if (wanted < nthreads) |
|
|
713 | wanted = nthreads; |
|
|
714 | } |
|
|
715 | |
|
|
716 | static void max_parallel (int nthreads) |
|
|
717 | { |
|
|
718 | if (wanted > nthreads) |
|
|
719 | wanted = nthreads; |
|
|
720 | |
|
|
721 | while (started > wanted) |
|
|
722 | end_thread (); |
|
|
723 | } |
|
|
724 | |
|
|
725 | static void poll_wait () |
|
|
726 | { |
|
|
727 | fd_set rfd; |
|
|
728 | |
|
|
729 | while (nreqs) |
|
|
730 | { |
|
|
731 | int size; |
|
|
732 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
733 | size = res_queue.size; |
|
|
734 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
735 | |
|
|
736 | if (size) |
|
|
737 | return; |
|
|
738 | |
|
|
739 | maybe_start_thread (); |
|
|
740 | |
|
|
741 | FD_ZERO(&rfd); |
|
|
742 | FD_SET(respipe [0], &rfd); |
|
|
743 | |
|
|
744 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
745 | } |
|
|
746 | } |
|
|
747 | |
|
|
748 | static int poll_cb () |
|
|
749 | { |
|
|
750 | dSP; |
|
|
751 | int count = 0; |
|
|
752 | int maxreqs = max_poll_reqs; |
|
|
753 | int do_croak = 0; |
|
|
754 | struct timeval tv_start, tv_now; |
|
|
755 | aio_req req; |
|
|
756 | |
|
|
757 | if (max_poll_time) |
|
|
758 | gettimeofday (&tv_start, 0); |
|
|
759 | |
|
|
760 | block_sig (); |
|
|
761 | |
|
|
762 | for (;;) |
|
|
763 | { |
|
|
764 | for (;;) |
|
|
765 | { |
|
|
766 | maybe_start_thread (); |
|
|
767 | |
|
|
768 | X_LOCK (reslock); |
|
|
769 | req = reqq_shift (&res_queue); |
|
|
770 | |
|
|
771 | if (req) |
|
|
772 | { |
|
|
773 | --npending; |
|
|
774 | |
|
|
775 | if (!res_queue.size) |
|
|
776 | { |
|
|
777 | /* read any signals sent by the worker threads */ |
|
|
778 | char buf [4]; |
|
|
779 | while (read (respipe [0], buf, 4) == 4) |
|
|
780 | ; |
|
|
781 | } |
|
|
782 | } |
|
|
783 | |
|
|
784 | X_UNLOCK (reslock); |
|
|
785 | |
|
|
786 | if (!req) |
|
|
787 | break; |
|
|
788 | |
|
|
789 | --nreqs; |
|
|
790 | |
|
|
791 | if (req->type == REQ_GROUP && req->size) |
|
|
792 | { |
|
|
793 | req->int1 = 1; /* mark request as delayed */ |
|
|
794 | continue; |
|
|
795 | } |
|
|
796 | else |
|
|
797 | { |
|
|
798 | if (!req_invoke (req)) |
|
|
799 | { |
|
|
800 | req_destroy (req); |
|
|
801 | unblock_sig (); |
|
|
802 | croak (0); |
|
|
803 | } |
|
|
804 | |
|
|
805 | count++; |
|
|
806 | } |
|
|
807 | |
|
|
808 | req_destroy (req); |
|
|
809 | |
|
|
810 | if (maxreqs && !--maxreqs) |
|
|
811 | break; |
|
|
812 | |
|
|
813 | if (max_poll_time) |
|
|
814 | { |
|
|
815 | gettimeofday (&tv_now, 0); |
|
|
816 | |
|
|
817 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
818 | break; |
|
|
819 | } |
|
|
820 | } |
|
|
821 | |
|
|
822 | if (nreqs <= max_outstanding) |
|
|
823 | break; |
|
|
824 | |
|
|
825 | poll_wait (); |
|
|
826 | |
|
|
827 | ++maxreqs; |
|
|
828 | } |
|
|
829 | |
|
|
830 | unblock_sig (); |
|
|
831 | return count; |
|
|
832 | } |
|
|
833 | |
|
|
834 | /*****************************************************************************/ |
|
|
835 | /* work around various missing functions */ |
|
|
836 | |
|
|
837 | #if !HAVE_PREADWRITE |
|
|
838 | # define pread aio_pread |
|
|
839 | # define pwrite aio_pwrite |
|
|
840 | |
|
|
841 | /* |
|
|
842 | * make our pread/pwrite safe against themselves, but not against |
|
|
843 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
844 | * but that's your problem, not mine. |
|
|
845 | */ |
|
|
846 | static mutex_t preadwritelock = X_MUTEX_INIT; |
|
|
847 | |
|
|
848 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
849 | { |
|
|
850 | ssize_t res; |
|
|
851 | off_t ooffset; |
|
|
852 | |
|
|
853 | X_LOCK (preadwritelock); |
|
|
854 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
855 | lseek (fd, offset, SEEK_SET); |
|
|
856 | res = read (fd, buf, count); |
|
|
857 | lseek (fd, ooffset, SEEK_SET); |
|
|
858 | X_UNLOCK (preadwritelock); |
|
|
859 | |
|
|
860 | return res; |
|
|
861 | } |
|
|
862 | |
|
|
863 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
864 | { |
|
|
865 | ssize_t res; |
|
|
866 | off_t ooffset; |
|
|
867 | |
|
|
868 | X_LOCK (preadwritelock); |
|
|
869 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
870 | lseek (fd, offset, SEEK_SET); |
|
|
871 | res = write (fd, buf, count); |
|
|
872 | lseek (fd, offset, SEEK_SET); |
|
|
873 | X_UNLOCK (preadwritelock); |
|
|
874 | |
|
|
875 | return res; |
|
|
876 | } |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #ifndef HAVE_FUTIMES |
|
|
880 | |
|
|
881 | # define utimes(path,times) aio_utimes (path, times) |
|
|
882 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
883 | |
|
|
884 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
885 | { |
|
|
886 | if (times) |
|
|
887 | { |
|
|
888 | struct utimbuf buf; |
|
|
889 | |
|
|
890 | buf.actime = times[0].tv_sec; |
|
|
891 | buf.modtime = times[1].tv_sec; |
|
|
892 | |
|
|
893 | return utime (filename, &buf); |
|
|
894 | } |
|
|
895 | else |
|
|
896 | return utime (filename, 0); |
|
|
897 | } |
|
|
898 | |
|
|
899 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
900 | { |
|
|
901 | errno = ENOSYS; |
|
|
902 | return -1; |
|
|
903 | } |
|
|
904 | |
|
|
905 | #endif |
|
|
906 | |
|
|
907 | #if !HAVE_FDATASYNC |
|
|
908 | # define fdatasync fsync |
|
|
909 | #endif |
|
|
910 | |
|
|
911 | #if !HAVE_READAHEAD |
|
|
912 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
913 | |
|
|
914 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
915 | { |
|
|
916 | size_t todo = count; |
|
|
917 | dBUF; |
|
|
918 | |
|
|
919 | while (todo > 0) |
|
|
920 | { |
|
|
921 | size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE; |
|
|
922 | |
|
|
923 | pread (fd, aio_buf, len, offset); |
|
|
924 | offset += len; |
|
|
925 | todo -= len; |
|
|
926 | } |
|
|
927 | |
|
|
928 | errno = 0; |
|
|
929 | return count; |
|
|
930 | } |
|
|
931 | |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | #if !HAVE_READDIR_R |
|
|
935 | # define readdir_r aio_readdir_r |
|
|
936 | |
|
|
937 | static mutex_t readdirlock = X_MUTEX_INIT; |
|
|
938 | |
|
|
939 | static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) |
|
|
940 | { |
|
|
941 | X_DIRENT *e; |
|
|
942 | int errorno; |
|
|
943 | |
|
|
944 | X_LOCK (readdirlock); |
|
|
945 | |
|
|
946 | e = readdir (dirp); |
|
|
947 | errorno = errno; |
|
|
948 | |
|
|
949 | if (e) |
|
|
950 | { |
|
|
951 | *res = ent; |
|
|
952 | strcpy (ent->d_name, e->d_name); |
|
|
953 | } |
|
|
954 | else |
|
|
955 | *res = 0; |
|
|
956 | |
|
|
957 | X_UNLOCK (readdirlock); |
|
|
958 | |
|
|
959 | errno = errorno; |
|
|
960 | return e ? 0 : -1; |
|
|
961 | } |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | /* sendfile always needs emulation */ |
|
|
965 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
966 | { |
|
|
967 | ssize_t res; |
|
|
968 | |
|
|
969 | if (!count) |
|
|
970 | return 0; |
|
|
971 | |
|
|
972 | #if HAVE_SENDFILE |
|
|
973 | # if __linux |
|
|
974 | res = sendfile (ofd, ifd, &offset, count); |
|
|
975 | |
|
|
976 | # elif __freebsd |
|
|
977 | /* |
|
|
978 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
979 | * wasted on making it similar to other I/O functions. |
|
|
980 | */ |
|
|
981 | { |
|
|
982 | off_t sbytes; |
|
|
983 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
984 | |
|
|
985 | if (res < 0 && sbytes) |
|
|
986 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
987 | res = sbytes; |
|
|
988 | } |
|
|
989 | |
|
|
990 | # elif __hpux |
|
|
991 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
992 | |
|
|
993 | # elif __solaris |
|
|
994 | { |
|
|
995 | struct sendfilevec vec; |
|
|
996 | size_t sbytes; |
|
|
997 | |
|
|
998 | vec.sfv_fd = ifd; |
|
|
999 | vec.sfv_flag = 0; |
|
|
1000 | vec.sfv_off = offset; |
|
|
1001 | vec.sfv_len = count; |
|
|
1002 | |
|
|
1003 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
1004 | |
|
|
1005 | if (res < 0 && sbytes) |
|
|
1006 | res = sbytes; |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | # endif |
|
|
1010 | #else |
|
|
1011 | res = -1; |
|
|
1012 | errno = ENOSYS; |
|
|
1013 | #endif |
|
|
1014 | |
|
|
1015 | if (res < 0 |
|
|
1016 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
1017 | #if __solaris |
|
|
1018 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
1019 | #endif |
|
|
1020 | ) |
|
|
1021 | ) |
|
|
1022 | { |
|
|
1023 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
1024 | dBUF; |
|
|
1025 | |
|
|
1026 | res = 0; |
|
|
1027 | |
|
|
1028 | while (count) |
|
|
1029 | { |
|
|
1030 | ssize_t cnt; |
|
|
1031 | |
|
|
1032 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
1033 | |
|
|
1034 | if (cnt <= 0) |
|
|
1035 | { |
|
|
1036 | if (cnt && !res) res = -1; |
|
|
1037 | break; |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | cnt = write (ofd, aio_buf, cnt); |
|
|
1041 | |
|
|
1042 | if (cnt <= 0) |
|
|
1043 | { |
|
|
1044 | if (cnt && !res) res = -1; |
|
|
1045 | break; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | offset += cnt; |
|
|
1049 | res += cnt; |
|
|
1050 | count -= cnt; |
|
|
1051 | } |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | return res; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | /* read a full directory */ |
|
|
1058 | static void scandir_ (aio_req req, worker *self) |
|
|
1059 | { |
|
|
1060 | DIR *dirp; |
|
|
1061 | union |
|
|
1062 | { |
|
|
1063 | X_DIRENT d; |
|
|
1064 | char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1]; |
|
|
1065 | } *u; |
|
|
1066 | X_DIRENT *entp; |
|
|
1067 | char *name, *names; |
|
|
1068 | int memlen = 4096; |
|
|
1069 | int memofs = 0; |
|
|
1070 | int res = 0; |
|
|
1071 | |
|
|
1072 | X_LOCK (wrklock); |
|
|
1073 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1074 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1075 | req->flags |= FLAG_PTR2_FREE; |
|
|
1076 | req->ptr2 = names = malloc (memlen); |
|
|
1077 | X_UNLOCK (wrklock); |
|
|
1078 | |
|
|
1079 | if (dirp && u && names) |
|
|
1080 | for (;;) |
|
|
1081 | { |
|
|
1082 | errno = 0; |
|
|
1083 | readdir_r (dirp, &u->d, &entp); |
|
|
1084 | |
|
|
1085 | if (!entp) |
|
|
1086 | break; |
|
|
1087 | |
|
|
1088 | name = entp->d_name; |
|
|
1089 | |
|
|
1090 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1091 | { |
|
|
1092 | int len = strlen (name) + 1; |
|
|
1093 | |
|
|
1094 | res++; |
|
|
1095 | |
|
|
1096 | while (memofs + len > memlen) |
|
|
1097 | { |
|
|
1098 | memlen *= 2; |
|
|
1099 | X_LOCK (wrklock); |
|
|
1100 | req->ptr2 = names = realloc (names, memlen); |
|
|
1101 | X_UNLOCK (wrklock); |
|
|
1102 | |
|
|
1103 | if (!names) |
|
|
1104 | break; |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | memcpy (names + memofs, name, len); |
|
|
1108 | memofs += len; |
|
|
1109 | } |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | if (errno) |
|
|
1113 | res = -1; |
|
|
1114 | |
|
|
1115 | req->result = res; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | /*****************************************************************************/ |
|
|
1119 | |
|
|
1120 | X_THREAD_PROC (aio_proc) |
|
|
1121 | { |
|
|
1122 | {//D |
|
|
1123 | aio_req req; |
|
|
1124 | struct timespec ts; |
|
|
1125 | worker *self = (worker *)thr_arg; |
|
|
1126 | |
|
|
1127 | /* try to distribute timeouts somewhat randomly */ |
|
|
1128 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
|
|
1129 | |
|
|
1130 | for (;;) |
|
|
1131 | { |
|
|
1132 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1133 | |
|
|
1134 | X_LOCK (reqlock); |
|
|
1135 | |
|
|
1136 | for (;;) |
|
|
1137 | { |
|
|
1138 | self->req = req = reqq_shift (&req_queue); |
|
|
1139 | |
|
|
1140 | if (req) |
|
|
1141 | break; |
|
|
1142 | |
|
|
1143 | ++idle; |
|
|
1144 | |
|
|
1145 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1146 | == ETIMEDOUT) |
|
|
1147 | { |
|
|
1148 | if (idle > max_idle) |
|
|
1149 | { |
|
|
1150 | --idle; |
|
|
1151 | X_UNLOCK (reqlock); |
|
|
1152 | X_LOCK (wrklock); |
|
|
1153 | --started; |
|
|
1154 | X_UNLOCK (wrklock); |
|
|
1155 | goto quit; |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1159 | X_COND_WAIT (reqwait, reqlock); |
|
|
1160 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1161 | } |
|
|
1162 | |
|
|
1163 | --idle; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | --nready; |
|
|
1167 | |
|
|
1168 | X_UNLOCK (reqlock); |
|
|
1169 | |
|
|
1170 | errno = 0; /* strictly unnecessary */ |
|
|
1171 | |
|
|
1172 | if (!(req->flags & FLAG_CANCELLED)) |
|
|
1173 | switch (req->type) |
|
|
1174 | { |
|
|
1175 | case REQ_READ: req->result = req->offs >= 0 |
|
|
1176 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1177 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1178 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1179 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1180 | : write (req->int1, req->ptr1, req->size); break; |
|
|
1181 | |
|
|
1182 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1183 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1184 | |
|
|
1185 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1186 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1187 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1188 | |
|
|
1189 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1190 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1191 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1192 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1193 | case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1194 | case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1195 | |
|
|
1196 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1197 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1198 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1199 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1200 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1201 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1202 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1203 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1204 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1205 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1206 | |
|
|
1207 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1208 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1209 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1210 | |
|
|
1211 | case REQ_BUSY: |
|
|
1212 | #ifdef _WIN32 |
|
|
1213 | Sleep (req->nv1 * 1000.); |
|
|
1214 | #else |
|
|
1215 | { |
|
|
1216 | struct timeval tv; |
|
|
1217 | |
|
|
1218 | tv.tv_sec = req->nv1; |
|
|
1219 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1220 | |
|
|
1221 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1222 | } |
|
|
1223 | #endif |
|
|
1224 | break; |
|
|
1225 | |
|
|
1226 | case REQ_UTIME: |
|
|
1227 | case REQ_FUTIME: |
|
|
1228 | { |
|
|
1229 | struct timeval tv[2]; |
|
|
1230 | struct timeval *times; |
|
|
1231 | |
|
|
1232 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1233 | { |
|
|
1234 | tv[0].tv_sec = req->nv1; |
|
|
1235 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1236 | tv[1].tv_sec = req->nv2; |
|
|
1237 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1238 | |
|
|
1239 | times = tv; |
|
|
1240 | } |
|
|
1241 | else |
|
|
1242 | times = 0; |
|
|
1243 | |
|
|
1244 | |
|
|
1245 | req->result = req->type == REQ_FUTIME |
|
|
1246 | ? futimes (req->int1, times) |
|
|
1247 | : utimes (req->ptr1, times); |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | case REQ_GROUP: |
|
|
1251 | case REQ_NOP: |
|
|
1252 | break; |
|
|
1253 | |
|
|
1254 | case REQ_QUIT: |
|
|
1255 | goto quit; |
|
|
1256 | |
|
|
1257 | default: |
|
|
1258 | req->result = -1; |
|
|
1259 | break; |
|
|
1260 | } |
|
|
1261 | |
295 | req->errorno = errno; |
1262 | req->errorno = errno; |
296 | write (respipe[1], (void *)&req, sizeof (req)); |
1263 | |
|
|
1264 | X_LOCK (reslock); |
|
|
1265 | |
|
|
1266 | ++npending; |
|
|
1267 | |
|
|
1268 | if (!reqq_push (&res_queue, req)) |
|
|
1269 | { |
|
|
1270 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
1271 | write (respipe [1], &respipe, 1); |
|
|
1272 | |
|
|
1273 | /* optionally signal the main thread asynchronously */ |
|
|
1274 | if (main_sig) |
|
|
1275 | pthread_kill (main_tid, main_sig); |
|
|
1276 | } |
|
|
1277 | |
|
|
1278 | self->req = 0; |
|
|
1279 | worker_clear (self); |
|
|
1280 | |
|
|
1281 | X_UNLOCK (reslock); |
297 | } |
1282 | } |
298 | |
1283 | |
|
|
1284 | quit: |
|
|
1285 | X_LOCK (wrklock); |
|
|
1286 | worker_free (self); |
|
|
1287 | X_UNLOCK (wrklock); |
|
|
1288 | |
299 | return 0; |
1289 | return 0; |
|
|
1290 | }//D |
300 | } |
1291 | } |
301 | |
1292 | |
|
|
1293 | /*****************************************************************************/ |
|
|
1294 | |
|
|
1295 | static void atfork_prepare (void) |
|
|
1296 | { |
|
|
1297 | X_LOCK (wrklock); |
|
|
1298 | X_LOCK (reqlock); |
|
|
1299 | X_LOCK (reslock); |
|
|
1300 | #if !HAVE_PREADWRITE |
|
|
1301 | X_LOCK (preadwritelock); |
|
|
1302 | #endif |
|
|
1303 | #if !HAVE_READDIR_R |
|
|
1304 | X_LOCK (readdirlock); |
|
|
1305 | #endif |
|
|
1306 | } |
|
|
1307 | |
|
|
1308 | static void atfork_parent (void) |
|
|
1309 | { |
|
|
1310 | #if !HAVE_READDIR_R |
|
|
1311 | X_UNLOCK (readdirlock); |
|
|
1312 | #endif |
|
|
1313 | #if !HAVE_PREADWRITE |
|
|
1314 | X_UNLOCK (preadwritelock); |
|
|
1315 | #endif |
|
|
1316 | X_UNLOCK (reslock); |
|
|
1317 | X_UNLOCK (reqlock); |
|
|
1318 | X_UNLOCK (wrklock); |
|
|
1319 | } |
|
|
1320 | |
|
|
1321 | static void atfork_child (void) |
|
|
1322 | { |
|
|
1323 | aio_req prv; |
|
|
1324 | |
|
|
1325 | while (prv = reqq_shift (&req_queue)) |
|
|
1326 | req_destroy (prv); |
|
|
1327 | |
|
|
1328 | while (prv = reqq_shift (&res_queue)) |
|
|
1329 | req_destroy (prv); |
|
|
1330 | |
|
|
1331 | while (wrk_first.next != &wrk_first) |
|
|
1332 | { |
|
|
1333 | worker *wrk = wrk_first.next; |
|
|
1334 | |
|
|
1335 | if (wrk->req) |
|
|
1336 | req_destroy (wrk->req); |
|
|
1337 | |
|
|
1338 | worker_clear (wrk); |
|
|
1339 | worker_free (wrk); |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | started = 0; |
|
|
1343 | idle = 0; |
|
|
1344 | nreqs = 0; |
|
|
1345 | nready = 0; |
|
|
1346 | npending = 0; |
|
|
1347 | |
|
|
1348 | close (respipe [0]); |
|
|
1349 | close (respipe [1]); |
|
|
1350 | |
|
|
1351 | if (!create_pipe (respipe)) |
|
|
1352 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
1353 | |
|
|
1354 | atfork_parent (); |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | #define dREQ \ |
|
|
1358 | aio_req req; \ |
|
|
1359 | int req_pri = next_pri; \ |
|
|
1360 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1361 | \ |
|
|
1362 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1363 | croak ("callback must be undef or of reference type"); \ |
|
|
1364 | \ |
|
|
1365 | Newz (0, req, 1, aio_cb); \ |
|
|
1366 | if (!req) \ |
|
|
1367 | croak ("out of memory during aio_req allocation"); \ |
|
|
1368 | \ |
|
|
1369 | req->callback = newSVsv (callback); \ |
|
|
1370 | req->pri = req_pri |
|
|
1371 | |
|
|
1372 | #define REQ_SEND \ |
|
|
1373 | req_send (req); \ |
|
|
1374 | \ |
|
|
1375 | if (GIMME_V != G_VOID) \ |
|
|
1376 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1377 | |
302 | MODULE = IO::AIO PACKAGE = IO::AIO |
1378 | MODULE = IO::AIO PACKAGE = IO::AIO |
303 | |
1379 | |
|
|
1380 | PROTOTYPES: ENABLE |
|
|
1381 | |
304 | BOOT: |
1382 | BOOT: |
305 | { |
1383 | { |
306 | if (pipe (reqpipe) || pipe (respipe)) |
1384 | HV *stash = gv_stashpv ("IO::AIO", 1); |
307 | croak ("unable to initialize request or result pipe"); |
|
|
308 | |
1385 | |
309 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
1386 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1387 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1388 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1389 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1390 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1391 | #ifdef _WIN32 |
|
|
1392 | X_MUTEX_CHECK (wrklock); |
|
|
1393 | X_MUTEX_CHECK (reslock); |
|
|
1394 | X_MUTEX_CHECK (reqlock); |
|
|
1395 | X_MUTEX_CHECK (reqwait); |
|
|
1396 | X_MUTEX_CHECK (preadwritelock); |
|
|
1397 | X_MUTEX_CHECK (readdirlock); |
|
|
1398 | #else |
|
|
1399 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1400 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
|
|
1401 | #endif |
|
|
1402 | |
|
|
1403 | if (!create_pipe (respipe)) |
310 | croak ("cannot set result pipe to nonblocking mode"); |
1404 | croak ("cannot set result pipe to nonblocking mode"); |
311 | |
1405 | |
312 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
1406 | X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); |
313 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
314 | } |
1407 | } |
315 | |
1408 | |
316 | void |
1409 | void |
317 | min_parallel(nthreads) |
1410 | max_poll_reqs (int nreqs) |
318 | int nthreads |
|
|
319 | PROTOTYPE: $ |
1411 | PROTOTYPE: $ |
320 | CODE: |
1412 | CODE: |
321 | while (nthreads > started) |
1413 | max_poll_reqs = nreqs; |
322 | start_thread (); |
|
|
323 | |
1414 | |
324 | void |
1415 | void |
325 | max_parallel(nthreads) |
1416 | max_poll_time (double nseconds) |
326 | int nthreads |
|
|
327 | PROTOTYPE: $ |
1417 | PROTOTYPE: $ |
328 | CODE: |
1418 | CODE: |
329 | { |
1419 | max_poll_time = nseconds * AIO_TICKS; |
330 | int cur = started; |
|
|
331 | while (cur > nthreads) |
|
|
332 | { |
|
|
333 | end_thread (); |
|
|
334 | cur--; |
|
|
335 | } |
|
|
336 | |
1420 | |
337 | while (started > nthreads) |
|
|
338 | { |
|
|
339 | poll_wait (); |
|
|
340 | poll_cb (aTHX); |
|
|
341 | } |
|
|
342 | } |
|
|
343 | |
|
|
344 | void |
1421 | void |
345 | aio_open(pathname,flags,mode,callback) |
1422 | min_parallel (int nthreads) |
346 | SV * pathname |
1423 | PROTOTYPE: $ |
347 | int flags |
1424 | |
348 | int mode |
1425 | void |
349 | SV * callback |
1426 | max_parallel (int nthreads) |
|
|
1427 | PROTOTYPE: $ |
|
|
1428 | |
|
|
1429 | void |
|
|
1430 | max_idle (int nthreads) |
|
|
1431 | PROTOTYPE: $ |
|
|
1432 | CODE: |
|
|
1433 | set_max_idle (nthreads); |
|
|
1434 | |
|
|
1435 | int |
|
|
1436 | max_outstanding (int maxreqs) |
|
|
1437 | PROTOTYPE: $ |
|
|
1438 | CODE: |
|
|
1439 | RETVAL = max_outstanding; |
|
|
1440 | max_outstanding = maxreqs; |
|
|
1441 | OUTPUT: |
|
|
1442 | RETVAL |
|
|
1443 | |
|
|
1444 | void |
|
|
1445 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
350 | PROTOTYPE: $$$$ |
1446 | PROTOTYPE: $$$;$ |
351 | CODE: |
1447 | PPCODE: |
352 | { |
1448 | { |
353 | aio_req req; |
1449 | dREQ; |
354 | |
|
|
355 | Newz (0, req, 1, aio_cb); |
|
|
356 | |
|
|
357 | if (!req) |
|
|
358 | croak ("out of memory during aio_req allocation"); |
|
|
359 | |
1450 | |
360 | req->type = REQ_OPEN; |
1451 | req->type = REQ_OPEN; |
361 | req->data = newSVsv (pathname); |
1452 | req->sv1 = newSVsv (pathname); |
362 | req->dataptr = SvPV_nolen (req->data); |
1453 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
363 | req->fd = flags; |
1454 | req->int1 = flags; |
364 | req->mode = mode; |
1455 | req->mode = mode; |
365 | req->callback = SvREFCNT_inc (callback); |
|
|
366 | |
1456 | |
367 | send_req (req); |
1457 | REQ_SEND; |
368 | } |
1458 | } |
369 | |
1459 | |
370 | void |
1460 | void |
371 | aio_close(fh,callback) |
1461 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
372 | InputStream fh |
|
|
373 | SV * callback |
|
|
374 | PROTOTYPE: $$ |
1462 | PROTOTYPE: $;$ |
375 | ALIAS: |
1463 | ALIAS: |
376 | aio_close = REQ_CLOSE |
1464 | aio_close = REQ_CLOSE |
377 | aio_fsync = REQ_FSYNC |
1465 | aio_fsync = REQ_FSYNC |
378 | aio_fdatasync = REQ_FDATASYNC |
1466 | aio_fdatasync = REQ_FDATASYNC |
379 | CODE: |
1467 | PPCODE: |
380 | { |
1468 | { |
381 | aio_req req; |
1469 | dREQ; |
382 | |
|
|
383 | Newz (0, req, 1, aio_cb); |
|
|
384 | |
|
|
385 | if (!req) |
|
|
386 | croak ("out of memory during aio_req allocation"); |
|
|
387 | |
1470 | |
388 | req->type = ix; |
1471 | req->type = ix; |
|
|
1472 | req->sv1 = newSVsv (fh); |
389 | req->fd = PerlIO_fileno (fh); |
1473 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
390 | req->callback = SvREFCNT_inc (callback); |
|
|
391 | |
1474 | |
392 | send_req (req); |
1475 | REQ_SEND (req); |
393 | } |
1476 | } |
394 | |
1477 | |
395 | void |
1478 | void |
396 | aio_read(fh,offset,length,data,dataoffset,callback) |
1479 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
397 | InputStream fh |
1480 | ALIAS: |
398 | UV offset |
1481 | aio_read = REQ_READ |
399 | IV length |
1482 | aio_write = REQ_WRITE |
400 | SV * data |
|
|
401 | IV dataoffset |
|
|
402 | SV * callback |
|
|
403 | PROTOTYPE: $$$$$$ |
1483 | PROTOTYPE: $$$$$;$ |
404 | CODE: |
1484 | PPCODE: |
405 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
406 | |
|
|
407 | void |
|
|
408 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
409 | OutputStream fh |
|
|
410 | UV offset |
|
|
411 | IV length |
|
|
412 | SV * data |
|
|
413 | IV dataoffset |
|
|
414 | SV * callback |
|
|
415 | PROTOTYPE: $$$$$$ |
|
|
416 | CODE: |
|
|
417 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
418 | |
|
|
419 | void |
|
|
420 | aio_readahead(fh,offset,length,callback) |
|
|
421 | InputStream fh |
|
|
422 | UV offset |
|
|
423 | IV length |
|
|
424 | SV * callback |
|
|
425 | PROTOTYPE: $$$$ |
|
|
426 | CODE: |
|
|
427 | { |
1485 | { |
428 | aio_req req; |
1486 | STRLEN svlen; |
|
|
1487 | char *svptr = SvPVbyte (data, svlen); |
|
|
1488 | UV len = SvUV (length); |
429 | |
1489 | |
|
|
1490 | SvUPGRADE (data, SVt_PV); |
|
|
1491 | SvPOK_on (data); |
|
|
1492 | |
|
|
1493 | if (dataoffset < 0) |
|
|
1494 | dataoffset += svlen; |
|
|
1495 | |
|
|
1496 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
1497 | croak ("dataoffset outside of data scalar"); |
|
|
1498 | |
|
|
1499 | if (ix == REQ_WRITE) |
|
|
1500 | { |
|
|
1501 | /* write: check length and adjust. */ |
|
|
1502 | if (!SvOK (length) || len + dataoffset > svlen) |
|
|
1503 | len = svlen - dataoffset; |
|
|
1504 | } |
|
|
1505 | else |
|
|
1506 | { |
|
|
1507 | /* read: grow scalar as necessary */ |
|
|
1508 | svptr = SvGROW (data, len + dataoffset + 1); |
|
|
1509 | } |
|
|
1510 | |
430 | if (length < 0) |
1511 | if (len < 0) |
431 | croak ("length must not be negative"); |
1512 | croak ("length must not be negative"); |
432 | |
1513 | |
433 | Newz (0, req, 1, aio_cb); |
1514 | { |
|
|
1515 | dREQ; |
434 | |
1516 | |
435 | if (!req) |
1517 | req->type = ix; |
436 | croak ("out of memory during aio_req allocation"); |
1518 | req->sv1 = newSVsv (fh); |
|
|
1519 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1520 | : IoOFP (sv_2io (fh))); |
|
|
1521 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1522 | req->size = len; |
|
|
1523 | req->sv2 = SvREFCNT_inc (data); |
|
|
1524 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1525 | req->stroffset = dataoffset; |
|
|
1526 | |
|
|
1527 | if (!SvREADONLY (data)) |
|
|
1528 | { |
|
|
1529 | SvREADONLY_on (data); |
|
|
1530 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1531 | } |
|
|
1532 | |
|
|
1533 | REQ_SEND; |
|
|
1534 | } |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | void |
|
|
1538 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1539 | PROTOTYPE: $$;$ |
|
|
1540 | PPCODE: |
|
|
1541 | { |
|
|
1542 | SV *data; |
|
|
1543 | dREQ; |
|
|
1544 | |
|
|
1545 | data = newSV (NAME_MAX); |
|
|
1546 | SvPOK_on (data); |
|
|
1547 | |
|
|
1548 | req->type = REQ_READLINK; |
|
|
1549 | req->sv1 = newSVsv (path); |
|
|
1550 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1551 | req->sv2 = data; |
|
|
1552 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1553 | |
|
|
1554 | REQ_SEND; |
|
|
1555 | } |
|
|
1556 | |
|
|
1557 | void |
|
|
1558 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
|
|
1559 | PROTOTYPE: $$$$;$ |
|
|
1560 | PPCODE: |
|
|
1561 | { |
|
|
1562 | dREQ; |
|
|
1563 | |
|
|
1564 | req->type = REQ_SENDFILE; |
|
|
1565 | req->sv1 = newSVsv (out_fh); |
|
|
1566 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1567 | req->sv2 = newSVsv (in_fh); |
|
|
1568 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1569 | req->offs = SvVAL64 (in_offset); |
|
|
1570 | req->size = length; |
|
|
1571 | |
|
|
1572 | REQ_SEND; |
|
|
1573 | } |
|
|
1574 | |
|
|
1575 | void |
|
|
1576 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
|
|
1577 | PROTOTYPE: $$$;$ |
|
|
1578 | PPCODE: |
|
|
1579 | { |
|
|
1580 | dREQ; |
437 | |
1581 | |
438 | req->type = REQ_READAHEAD; |
1582 | req->type = REQ_READAHEAD; |
|
|
1583 | req->sv1 = newSVsv (fh); |
439 | req->fd = PerlIO_fileno (fh); |
1584 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
440 | req->offset = offset; |
1585 | req->offs = SvVAL64 (offset); |
441 | req->length = length; |
1586 | req->size = length; |
442 | req->callback = SvREFCNT_inc (callback); |
|
|
443 | |
1587 | |
444 | send_req (req); |
1588 | REQ_SEND; |
445 | } |
1589 | } |
446 | |
1590 | |
447 | void |
1591 | void |
448 | aio_stat(fh_or_path,callback) |
1592 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
449 | SV * fh_or_path |
|
|
450 | SV * callback |
|
|
451 | PROTOTYPE: $$ |
|
|
452 | ALIAS: |
1593 | ALIAS: |
|
|
1594 | aio_stat = REQ_STAT |
453 | aio_lstat = 1 |
1595 | aio_lstat = REQ_LSTAT |
454 | CODE: |
1596 | PPCODE: |
455 | { |
1597 | { |
456 | aio_req req; |
1598 | dREQ; |
457 | |
1599 | |
458 | Newz (0, req, 1, aio_cb); |
1600 | req->ptr2 = malloc (sizeof (Stat_t)); |
459 | |
|
|
460 | if (!req) |
1601 | if (!req->ptr2) |
461 | croak ("out of memory during aio_req allocation"); |
1602 | { |
462 | |
1603 | req_destroy (req); |
463 | New (0, req->statdata, 1, Stat_t); |
|
|
464 | |
|
|
465 | if (!req->statdata) |
|
|
466 | croak ("out of memory during aio_req->statdata allocation"); |
1604 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1605 | } |
|
|
1606 | |
|
|
1607 | req->flags |= FLAG_PTR2_FREE; |
|
|
1608 | req->sv1 = newSVsv (fh_or_path); |
467 | |
1609 | |
468 | if (SvPOK (fh_or_path)) |
1610 | if (SvPOK (fh_or_path)) |
469 | { |
1611 | { |
470 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
1612 | req->type = ix; |
471 | req->data = newSVsv (fh_or_path); |
|
|
472 | req->dataptr = SvPV_nolen (req->data); |
1613 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
473 | } |
1614 | } |
474 | else |
1615 | else |
475 | { |
1616 | { |
476 | req->type = REQ_FSTAT; |
1617 | req->type = REQ_FSTAT; |
477 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1618 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
478 | } |
1619 | } |
479 | |
1620 | |
480 | req->callback = SvREFCNT_inc (callback); |
1621 | REQ_SEND; |
481 | |
|
|
482 | send_req (req); |
|
|
483 | } |
1622 | } |
484 | |
1623 | |
485 | void |
1624 | void |
486 | aio_unlink(pathname,callback) |
1625 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
487 | SV * pathname |
1626 | PPCODE: |
488 | SV * callback |
1627 | { |
|
|
1628 | dREQ; |
|
|
1629 | |
|
|
1630 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1631 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1632 | req->sv1 = newSVsv (fh_or_path); |
|
|
1633 | |
|
|
1634 | if (SvPOK (fh_or_path)) |
|
|
1635 | { |
|
|
1636 | req->type = REQ_UTIME; |
|
|
1637 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1638 | } |
|
|
1639 | else |
|
|
1640 | { |
|
|
1641 | req->type = REQ_FUTIME; |
|
|
1642 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | REQ_SEND; |
|
|
1646 | } |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1650 | PPCODE: |
|
|
1651 | { |
|
|
1652 | dREQ; |
|
|
1653 | |
|
|
1654 | req->sv1 = newSVsv (fh_or_path); |
|
|
1655 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1656 | |
|
|
1657 | if (SvPOK (fh_or_path)) |
|
|
1658 | { |
|
|
1659 | req->type = REQ_TRUNCATE; |
|
|
1660 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1661 | } |
|
|
1662 | else |
|
|
1663 | { |
|
|
1664 | req->type = REQ_FTRUNCATE; |
|
|
1665 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1666 | } |
|
|
1667 | |
|
|
1668 | REQ_SEND; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | void |
|
|
1672 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1673 | PPCODE: |
|
|
1674 | { |
|
|
1675 | dREQ; |
|
|
1676 | |
|
|
1677 | req->mode = mode; |
|
|
1678 | req->sv1 = newSVsv (fh_or_path); |
|
|
1679 | |
|
|
1680 | if (SvPOK (fh_or_path)) |
|
|
1681 | { |
|
|
1682 | req->type = REQ_CHMOD; |
|
|
1683 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1684 | } |
|
|
1685 | else |
|
|
1686 | { |
|
|
1687 | req->type = REQ_FCHMOD; |
|
|
1688 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | REQ_SEND; |
|
|
1692 | } |
|
|
1693 | |
|
|
1694 | void |
|
|
1695 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1696 | PPCODE: |
|
|
1697 | { |
|
|
1698 | dREQ; |
|
|
1699 | |
|
|
1700 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1701 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1702 | req->sv1 = newSVsv (fh_or_path); |
|
|
1703 | |
|
|
1704 | if (SvPOK (fh_or_path)) |
|
|
1705 | { |
|
|
1706 | req->type = REQ_CHOWN; |
|
|
1707 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1708 | } |
|
|
1709 | else |
|
|
1710 | { |
|
|
1711 | req->type = REQ_FCHOWN; |
|
|
1712 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1713 | } |
|
|
1714 | |
|
|
1715 | REQ_SEND; |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | void |
|
|
1719 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
|
|
1720 | ALIAS: |
|
|
1721 | aio_unlink = REQ_UNLINK |
|
|
1722 | aio_rmdir = REQ_RMDIR |
|
|
1723 | aio_readdir = REQ_READDIR |
|
|
1724 | PPCODE: |
|
|
1725 | { |
|
|
1726 | dREQ; |
|
|
1727 | |
|
|
1728 | req->type = ix; |
|
|
1729 | req->sv1 = newSVsv (pathname); |
|
|
1730 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1731 | |
|
|
1732 | REQ_SEND; |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | void |
|
|
1736 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1737 | PPCODE: |
|
|
1738 | { |
|
|
1739 | dREQ; |
|
|
1740 | |
|
|
1741 | req->type = REQ_MKDIR; |
|
|
1742 | req->sv1 = newSVsv (pathname); |
|
|
1743 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1744 | req->mode = mode; |
|
|
1745 | |
|
|
1746 | REQ_SEND; |
|
|
1747 | } |
|
|
1748 | |
|
|
1749 | void |
|
|
1750 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1751 | ALIAS: |
|
|
1752 | aio_link = REQ_LINK |
|
|
1753 | aio_symlink = REQ_SYMLINK |
|
|
1754 | aio_rename = REQ_RENAME |
|
|
1755 | PPCODE: |
|
|
1756 | { |
|
|
1757 | dREQ; |
|
|
1758 | |
|
|
1759 | req->type = ix; |
|
|
1760 | req->sv2 = newSVsv (oldpath); |
|
|
1761 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1762 | req->sv1 = newSVsv (newpath); |
|
|
1763 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1764 | |
|
|
1765 | REQ_SEND; |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | void |
|
|
1769 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1770 | PPCODE: |
|
|
1771 | { |
|
|
1772 | dREQ; |
|
|
1773 | |
|
|
1774 | req->type = REQ_MKNOD; |
|
|
1775 | req->sv1 = newSVsv (pathname); |
|
|
1776 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1777 | req->mode = (mode_t)mode; |
|
|
1778 | req->offs = dev; |
|
|
1779 | |
|
|
1780 | REQ_SEND; |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | void |
|
|
1784 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1785 | PPCODE: |
|
|
1786 | { |
|
|
1787 | dREQ; |
|
|
1788 | |
|
|
1789 | req->type = REQ_BUSY; |
|
|
1790 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1791 | |
|
|
1792 | REQ_SEND; |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | void |
|
|
1796 | aio_group (SV *callback=&PL_sv_undef) |
489 | PROTOTYPE: $$ |
1797 | PROTOTYPE: ;$ |
|
|
1798 | PPCODE: |
|
|
1799 | { |
|
|
1800 | dREQ; |
|
|
1801 | |
|
|
1802 | req->type = REQ_GROUP; |
|
|
1803 | |
|
|
1804 | req_send (req); |
|
|
1805 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | void |
|
|
1809 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1810 | PPCODE: |
|
|
1811 | { |
|
|
1812 | dREQ; |
|
|
1813 | |
|
|
1814 | req->type = REQ_NOP; |
|
|
1815 | |
|
|
1816 | REQ_SEND; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | int |
|
|
1820 | aioreq_pri (int pri = 0) |
|
|
1821 | PROTOTYPE: ;$ |
490 | CODE: |
1822 | CODE: |
491 | { |
1823 | RETVAL = next_pri - PRI_BIAS; |
492 | aio_req req; |
1824 | if (items > 0) |
493 | |
1825 | { |
494 | Newz (0, req, 1, aio_cb); |
1826 | if (pri < PRI_MIN) pri = PRI_MIN; |
495 | |
1827 | if (pri > PRI_MAX) pri = PRI_MAX; |
496 | if (!req) |
1828 | next_pri = pri + PRI_BIAS; |
497 | croak ("out of memory during aio_req allocation"); |
1829 | } |
498 | |
1830 | OUTPUT: |
499 | req->type = REQ_UNLINK; |
1831 | RETVAL |
500 | req->data = newSVsv (pathname); |
1832 | |
501 | req->dataptr = SvPV_nolen (req->data); |
1833 | void |
502 | req->callback = SvREFCNT_inc (callback); |
1834 | aioreq_nice (int nice = 0) |
503 | |
1835 | CODE: |
504 | send_req (req); |
1836 | nice = next_pri - nice; |
505 | } |
1837 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1838 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1839 | next_pri = nice + PRI_BIAS; |
|
|
1840 | |
|
|
1841 | void |
|
|
1842 | flush () |
|
|
1843 | PROTOTYPE: |
|
|
1844 | CODE: |
|
|
1845 | while (nreqs) |
|
|
1846 | { |
|
|
1847 | poll_wait (); |
|
|
1848 | poll_cb (); |
|
|
1849 | } |
|
|
1850 | |
|
|
1851 | int |
|
|
1852 | poll() |
|
|
1853 | PROTOTYPE: |
|
|
1854 | CODE: |
|
|
1855 | poll_wait (); |
|
|
1856 | RETVAL = poll_cb (); |
|
|
1857 | OUTPUT: |
|
|
1858 | RETVAL |
506 | |
1859 | |
507 | int |
1860 | int |
508 | poll_fileno() |
1861 | poll_fileno() |
509 | PROTOTYPE: |
1862 | PROTOTYPE: |
510 | CODE: |
1863 | CODE: |
511 | RETVAL = respipe[0]; |
1864 | RETVAL = respipe [0]; |
512 | OUTPUT: |
1865 | OUTPUT: |
513 | RETVAL |
1866 | RETVAL |
514 | |
1867 | |
515 | int |
1868 | int |
516 | poll_cb(...) |
1869 | poll_cb(...) |
517 | PROTOTYPE: |
1870 | PROTOTYPE: |
518 | CODE: |
1871 | CODE: |
519 | RETVAL = poll_cb (aTHX); |
1872 | RETVAL = poll_cb (); |
520 | OUTPUT: |
1873 | OUTPUT: |
521 | RETVAL |
1874 | RETVAL |
522 | |
1875 | |
523 | void |
1876 | void |
524 | poll_wait() |
1877 | poll_wait() |
525 | PROTOTYPE: |
1878 | PROTOTYPE: |
526 | CODE: |
1879 | CODE: |
527 | poll_wait (); |
1880 | poll_wait (); |
|
|
1881 | |
|
|
1882 | void |
|
|
1883 | setsig (int signum = SIGIO) |
|
|
1884 | PROTOTYPE: ;$ |
|
|
1885 | CODE: |
|
|
1886 | { |
|
|
1887 | if (block_sig_level) |
|
|
1888 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1889 | |
|
|
1890 | X_LOCK (reslock); |
|
|
1891 | main_tid = pthread_self (); |
|
|
1892 | main_sig = signum; |
|
|
1893 | X_UNLOCK (reslock); |
|
|
1894 | |
|
|
1895 | if (main_sig && npending) |
|
|
1896 | pthread_kill (main_tid, main_sig); |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | void |
|
|
1900 | aio_block (SV *cb) |
|
|
1901 | PROTOTYPE: & |
|
|
1902 | PPCODE: |
|
|
1903 | { |
|
|
1904 | int count; |
|
|
1905 | |
|
|
1906 | block_sig (); |
|
|
1907 | PUSHMARK (SP); |
|
|
1908 | PUTBACK; |
|
|
1909 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1910 | SPAGAIN; |
|
|
1911 | unblock_sig (); |
|
|
1912 | |
|
|
1913 | if (SvTRUE (ERRSV)) |
|
|
1914 | croak (0); |
|
|
1915 | |
|
|
1916 | XSRETURN (count); |
|
|
1917 | } |
528 | |
1918 | |
529 | int |
1919 | int |
530 | nreqs() |
1920 | nreqs() |
531 | PROTOTYPE: |
1921 | PROTOTYPE: |
532 | CODE: |
1922 | CODE: |
533 | RETVAL = nreqs; |
1923 | RETVAL = nreqs; |
534 | OUTPUT: |
1924 | OUTPUT: |
535 | RETVAL |
1925 | RETVAL |
536 | |
1926 | |
|
|
1927 | int |
|
|
1928 | nready() |
|
|
1929 | PROTOTYPE: |
|
|
1930 | CODE: |
|
|
1931 | RETVAL = get_nready (); |
|
|
1932 | OUTPUT: |
|
|
1933 | RETVAL |
|
|
1934 | |
|
|
1935 | int |
|
|
1936 | npending() |
|
|
1937 | PROTOTYPE: |
|
|
1938 | CODE: |
|
|
1939 | RETVAL = get_npending (); |
|
|
1940 | OUTPUT: |
|
|
1941 | RETVAL |
|
|
1942 | |
|
|
1943 | int |
|
|
1944 | nthreads() |
|
|
1945 | PROTOTYPE: |
|
|
1946 | CODE: |
|
|
1947 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
|
|
1948 | RETVAL = started; |
|
|
1949 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
|
|
1950 | OUTPUT: |
|
|
1951 | RETVAL |
|
|
1952 | |
|
|
1953 | PROTOTYPES: DISABLE |
|
|
1954 | |
|
|
1955 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1956 | |
|
|
1957 | void |
|
|
1958 | cancel (aio_req_ornot req) |
|
|
1959 | CODE: |
|
|
1960 | req_cancel (req); |
|
|
1961 | |
|
|
1962 | void |
|
|
1963 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1964 | CODE: |
|
|
1965 | SvREFCNT_dec (req->callback); |
|
|
1966 | req->callback = newSVsv (callback); |
|
|
1967 | |
|
|
1968 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1969 | |
|
|
1970 | void |
|
|
1971 | add (aio_req grp, ...) |
|
|
1972 | PPCODE: |
|
|
1973 | { |
|
|
1974 | int i; |
|
|
1975 | aio_req req; |
|
|
1976 | |
|
|
1977 | if (main_sig && !block_sig_level) |
|
|
1978 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1979 | |
|
|
1980 | if (grp->int1 == 2) |
|
|
1981 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1982 | |
|
|
1983 | for (i = 1; i < items; ++i ) |
|
|
1984 | { |
|
|
1985 | if (GIMME_V != G_VOID) |
|
|
1986 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1987 | |
|
|
1988 | req = SvAIO_REQ (ST (i)); |
|
|
1989 | |
|
|
1990 | if (req) |
|
|
1991 | { |
|
|
1992 | ++grp->size; |
|
|
1993 | req->grp = grp; |
|
|
1994 | |
|
|
1995 | req->grp_prev = 0; |
|
|
1996 | req->grp_next = grp->grp_first; |
|
|
1997 | |
|
|
1998 | if (grp->grp_first) |
|
|
1999 | grp->grp_first->grp_prev = req; |
|
|
2000 | |
|
|
2001 | grp->grp_first = req; |
|
|
2002 | } |
|
|
2003 | } |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | void |
|
|
2007 | cancel_subs (aio_req_ornot req) |
|
|
2008 | CODE: |
|
|
2009 | req_cancel_subs (req); |
|
|
2010 | |
|
|
2011 | void |
|
|
2012 | result (aio_req grp, ...) |
|
|
2013 | CODE: |
|
|
2014 | { |
|
|
2015 | int i; |
|
|
2016 | AV *av; |
|
|
2017 | |
|
|
2018 | grp->errorno = errno; |
|
|
2019 | |
|
|
2020 | av = newAV (); |
|
|
2021 | |
|
|
2022 | for (i = 1; i < items; ++i ) |
|
|
2023 | av_push (av, newSVsv (ST (i))); |
|
|
2024 | |
|
|
2025 | SvREFCNT_dec (grp->sv1); |
|
|
2026 | grp->sv1 = (SV *)av; |
|
|
2027 | } |
|
|
2028 | |
|
|
2029 | void |
|
|
2030 | errno (aio_req grp, int errorno = errno) |
|
|
2031 | CODE: |
|
|
2032 | grp->errorno = errorno; |
|
|
2033 | |
|
|
2034 | void |
|
|
2035 | limit (aio_req grp, int limit) |
|
|
2036 | CODE: |
|
|
2037 | grp->int2 = limit; |
|
|
2038 | aio_grp_feed (grp); |
|
|
2039 | |
|
|
2040 | void |
|
|
2041 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
2042 | CODE: |
|
|
2043 | { |
|
|
2044 | SvREFCNT_dec (grp->sv2); |
|
|
2045 | grp->sv2 = newSVsv (callback); |
|
|
2046 | |
|
|
2047 | if (grp->int2 <= 0) |
|
|
2048 | grp->int2 = 2; |
|
|
2049 | |
|
|
2050 | aio_grp_feed (grp); |
|
|
2051 | } |
|
|
2052 | |