1 | #define _REENTRANT 1 |
1 | #include "libeio/xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
9 | #include <stddef.h> |
11 | |
10 | #include <stdlib.h> |
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11 | #include <errno.h> |
12 | #include <sys/types.h> |
12 | #include <sys/types.h> |
13 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
14 | |
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15 | #include <unistd.h> |
14 | #include <limits.h> |
16 | #include <fcntl.h> |
15 | #include <fcntl.h> |
17 | #include <signal.h> |
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18 | #include <sched.h> |
16 | #include <sched.h> |
19 | |
17 | |
20 | #if HAVE_SENDFILE |
18 | #ifdef _WIN32 |
21 | # if __linux |
19 | |
22 | # include <sys/sendfile.h> |
20 | # define EIO_STRUCT_DIRENT Direntry_t |
23 | # elif __freebsd |
21 | # undef malloc |
24 | # include <sys/socket.h> |
22 | # undef free |
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23 | |
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24 | // perl overrides all those nice win32 functions |
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25 | # undef open |
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26 | # undef read |
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27 | # undef write |
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28 | # undef send |
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29 | # undef recv |
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30 | # undef stat |
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31 | # undef fstat |
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32 | # define lstat stat |
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33 | # undef truncate |
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34 | # undef ftruncate |
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35 | # undef open |
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36 | # undef close |
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37 | # undef unlink |
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38 | # undef rmdir |
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39 | # undef rename |
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40 | # undef lseek |
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41 | |
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42 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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43 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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44 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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45 | # define symlink(a,b) (errno = ENOSYS, -1) |
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46 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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47 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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48 | # define truncate(a,b) (errno = ENOSYS, -1) |
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49 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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50 | # define fsync(fd) _commit (fd) |
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51 | # define opendir(fd) (errno = ENOSYS, 0) |
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52 | # define readdir(fd) (errno = ENOSYS, -1) |
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53 | # define closedir(fd) (errno = ENOSYS, -1) |
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54 | # define mkdir(a,b) mkdir (a) |
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55 | |
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56 | #else |
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57 | |
25 | # include <sys/uio.h> |
58 | # include <sys/time.h> |
26 | # elif __hpux |
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27 | # include <sys/socket.h> |
59 | # include <sys/select.h> |
28 | # endif |
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 | # define EIO_STRUCT_DIRENT struct dirent |
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64 | |
29 | #endif |
65 | #endif |
30 | |
66 | |
31 | #if __ia64 |
67 | #define EIO_STRUCT_STAT Stat_t |
32 | # define STACKSIZE 65536 |
68 | |
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69 | /* use NV for 32 bit perls as it allows larger offsets */ |
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70 | #if IVSIZE >= 8 |
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71 | # define SvVAL64 SvIV |
33 | #else |
72 | #else |
34 | # define STACKSIZE 4096 |
73 | # define SvVAL64 SvNV |
35 | #endif |
74 | #endif |
36 | |
75 | |
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76 | static HV *stash; |
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77 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
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78 | |
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79 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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80 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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81 | |
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82 | #define EIO_COMMON \ |
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83 | SV *callback; \ |
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84 | SV *sv1, *sv2; \ |
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85 | STRLEN stroffset; \ |
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86 | SV *self |
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87 | |
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88 | #include "libeio/eio.h" |
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89 | |
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90 | static int req_invoke (eio_req *req); |
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91 | #define EIO_FINISH(req) req_invoke (req) |
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92 | static void aio_grp_feed (eio_req *grp); |
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93 | #define EIO_FEED(req) aio_grp_feed (req) |
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94 | static void req_destroy (eio_req *grp); |
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95 | #define EIO_DESTROY(req) req_destroy (req) |
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96 | |
37 | enum { |
97 | enum { |
38 | REQ_QUIT, |
98 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
39 | REQ_OPEN, REQ_CLOSE, |
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40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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41 | REQ_SENDFILE, |
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42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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43 | REQ_FSYNC, REQ_FDATASYNC, |
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44 | REQ_UNLINK, REQ_RMDIR, |
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45 | REQ_SYMLINK, |
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46 | }; |
99 | }; |
47 | |
100 | |
48 | typedef struct aio_cb { |
101 | #include "libeio/eio.c" |
49 | struct aio_cb *volatile next; |
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50 | |
102 | |
51 | int type; |
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52 | |
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53 | int fd, fd2; |
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54 | off_t offset; |
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55 | size_t length; |
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56 | ssize_t result; |
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57 | mode_t mode; /* open */ |
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58 | int errorno; |
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59 | SV *data, *callback; |
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60 | SV *fh, *fh2; |
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61 | void *dataptr, *data2ptr; |
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62 | STRLEN dataoffset; |
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63 | |
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64 | Stat_t *statdata; |
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65 | } aio_cb; |
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66 | |
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67 | typedef aio_cb *aio_req; |
103 | typedef eio_req *aio_req; |
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104 | typedef eio_req *aio_req_ornot; |
68 | |
105 | |
69 | static int started, wanted; |
106 | static unsigned int max_outstanding = 0x7fffffff; |
70 | static volatile int nreqs; |
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71 | static int max_outstanding = 1<<30; |
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72 | static int respipe [2]; |
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73 | |
107 | |
74 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
108 | static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; |
75 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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76 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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77 | |
109 | |
78 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
110 | static int respipe_osf [2], respipe [2] = { -1, -1 }; |
79 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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80 | |
111 | |
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112 | static void req_destroy (aio_req req); |
81 | static void free_req (aio_req req) |
113 | static void req_cancel (aio_req req); |
82 | { |
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83 | if (req->data) |
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84 | SvREFCNT_dec (req->data); |
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85 | |
114 | |
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115 | static void want_poll (void) |
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116 | { |
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117 | /* write a dummy byte to the pipe so fh becomes ready */ |
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118 | respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
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119 | } |
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120 | |
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121 | static void done_poll (void) |
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122 | { |
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123 | /* read any signals sent by the worker threads */ |
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124 | char buf [4]; |
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125 | while (respipe_read (respipe [0], buf, 4) == 4) |
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126 | ; |
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127 | } |
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128 | |
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129 | /* must be called at most once */ |
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130 | static SV *req_sv (aio_req req, const char *klass) |
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131 | { |
86 | if (req->fh) |
132 | if (!req->self) |
87 | SvREFCNT_dec (req->fh); |
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88 | |
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89 | if (req->fh2) |
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90 | SvREFCNT_dec (req->fh2); |
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91 | |
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92 | if (req->statdata) |
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93 | Safefree (req->statdata); |
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94 | |
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95 | if (req->callback) |
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96 | SvREFCNT_dec (req->callback); |
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97 | |
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98 | Safefree (req); |
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99 | } |
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100 | |
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101 | static void |
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102 | poll_wait () |
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103 | { |
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104 | if (nreqs && !ress) |
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105 | { |
133 | { |
106 | fd_set rfd; |
134 | req->self = (SV *)newHV (); |
107 | FD_ZERO(&rfd); |
135 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
108 | FD_SET(respipe [0], &rfd); |
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109 | |
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110 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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111 | } |
136 | } |
112 | } |
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113 | |
137 | |
114 | static int |
138 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
115 | poll_cb () |
139 | } |
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140 | |
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141 | static aio_req SvAIO_REQ (SV *sv) |
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142 | { |
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143 | MAGIC *mg; |
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144 | |
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145 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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146 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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147 | |
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148 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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149 | |
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150 | return mg ? (aio_req)mg->mg_ptr : 0; |
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151 | } |
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152 | |
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153 | static void aio_grp_feed (aio_req grp) |
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154 | { |
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155 | if (grp->sv2 && SvOK (grp->sv2)) |
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156 | { |
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157 | dSP; |
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158 | |
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159 | ENTER; |
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160 | SAVETMPS; |
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161 | PUSHMARK (SP); |
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162 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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163 | PUTBACK; |
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164 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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165 | SPAGAIN; |
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166 | FREETMPS; |
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167 | LEAVE; |
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168 | } |
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169 | } |
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170 | |
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171 | static int req_invoke (eio_req *req) |
116 | { |
172 | { |
117 | dSP; |
173 | dSP; |
118 | int count = 0; |
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119 | int do_croak = 0; |
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120 | aio_req req; |
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121 | |
174 | |
122 | for (;;) |
175 | if (req->flags & FLAG_SV2_RO_OFF) |
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176 | SvREADONLY_off (req->sv2); |
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177 | |
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178 | if (!EIO_CANCELLED (req) && SvOK (req->callback)) |
123 | { |
179 | { |
124 | pthread_mutex_lock (&reslock); |
180 | ENTER; |
125 | req = ress; |
181 | SAVETMPS; |
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182 | PUSHMARK (SP); |
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183 | EXTEND (SP, 1); |
126 | |
184 | |
127 | if (req) |
185 | switch (req->type) |
128 | { |
186 | { |
129 | ress = req->next; |
187 | case EIO_READDIR: |
130 | |
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131 | if (!ress) |
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132 | { |
188 | { |
133 | /* read any signals sent by the worker threads */ |
189 | SV *rv = &PL_sv_undef; |
134 | char buf [32]; |
190 | |
135 | while (read (respipe [0], buf, 32) == 32) |
191 | if (req->result >= 0) |
136 | ; |
192 | { |
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193 | int i; |
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194 | char *buf = req->ptr2; |
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195 | AV *av = newAV (); |
137 | |
196 | |
138 | rese = 0; |
197 | av_extend (av, req->result - 1); |
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198 | |
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199 | for (i = 0; i < req->result; ++i) |
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200 | { |
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201 | SV *sv = newSVpv (buf, 0); |
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202 | |
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203 | av_store (av, i, sv); |
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204 | buf += SvCUR (sv) + 1; |
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205 | } |
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206 | |
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207 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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208 | } |
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209 | |
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210 | PUSHs (rv); |
139 | } |
211 | } |
140 | } |
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141 | |
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142 | pthread_mutex_unlock (&reslock); |
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143 | |
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144 | if (!req) |
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145 | break; |
212 | break; |
146 | |
213 | |
147 | nreqs--; |
214 | case EIO_OPEN: |
148 | |
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149 | if (req->type == REQ_QUIT) |
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150 | started--; |
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151 | else |
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152 | { |
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153 | int errorno = errno; |
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154 | errno = req->errorno; |
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155 | |
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156 | if (req->type == REQ_READ) |
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157 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
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158 | |
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159 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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160 | SvREADONLY_off (req->data); |
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161 | |
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162 | if (req->statdata) |
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163 | { |
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164 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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165 | PL_laststatval = req->result; |
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166 | PL_statcache = *(req->statdata); |
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167 | } |
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168 | |
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169 | ENTER; |
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170 | PUSHMARK (SP); |
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171 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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172 | |
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173 | if (req->type == REQ_OPEN) |
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174 | { |
215 | { |
175 | /* convert fd to fh */ |
216 | /* convert fd to fh */ |
176 | SV *fh; |
217 | SV *fh = &PL_sv_undef; |
177 | |
218 | |
178 | PUTBACK; |
219 | if (req->result >= 0) |
179 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
220 | { |
180 | SPAGAIN; |
221 | GV *gv = (GV *)sv_newmortal (); |
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222 | int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
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223 | char sym [64]; |
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224 | int symlen; |
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225 | |
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226 | symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); |
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227 | gv_init (gv, stash, sym, symlen, 0); |
181 | |
228 | |
182 | fh = SvREFCNT_inc (POPs); |
229 | symlen = snprintf ( |
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230 | sym, |
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231 | sizeof (sym), |
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232 | "%s&=%d", |
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233 | flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
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234 | req->result |
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235 | ); |
183 | |
236 | |
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237 | if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
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238 | fh = (SV *)gv; |
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239 | } |
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240 | |
184 | PUSHMARK (SP); |
241 | PUSHs (fh); |
185 | XPUSHs (sv_2mortal (fh)); |
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186 | } |
242 | } |
187 | |
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188 | if (SvOK (req->callback)) |
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189 | { |
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190 | PUTBACK; |
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191 | call_sv (req->callback, G_VOID | G_EVAL); |
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192 | SPAGAIN; |
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193 | |
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194 | if (SvTRUE (ERRSV)) |
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195 | { |
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196 | free_req (req); |
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197 | croak (0); |
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198 | } |
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199 | } |
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200 | |
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201 | LEAVE; |
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202 | |
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203 | errno = errorno; |
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204 | count++; |
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205 | } |
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206 | |
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207 | free_req (req); |
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208 | } |
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209 | |
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210 | return count; |
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211 | } |
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212 | |
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213 | static void *aio_proc(void *arg); |
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214 | |
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215 | static void |
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216 | start_thread (void) |
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217 | { |
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218 | sigset_t fullsigset, oldsigset; |
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219 | pthread_t tid; |
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220 | pthread_attr_t attr; |
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221 | |
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222 | pthread_attr_init (&attr); |
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223 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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224 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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225 | |
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226 | sigfillset (&fullsigset); |
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227 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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228 | |
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229 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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230 | started++; |
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231 | |
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232 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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233 | } |
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234 | |
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235 | static void |
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236 | send_req (aio_req req) |
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237 | { |
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238 | while (started < wanted && nreqs >= started) |
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239 | start_thread (); |
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240 | |
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241 | nreqs++; |
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242 | |
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243 | pthread_mutex_lock (&reqlock); |
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244 | |
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245 | req->next = 0; |
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246 | |
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247 | if (reqe) |
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248 | { |
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249 | reqe->next = req; |
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250 | reqe = req; |
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251 | } |
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252 | else |
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253 | reqe = reqs = req; |
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254 | |
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255 | pthread_cond_signal (&reqwait); |
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256 | pthread_mutex_unlock (&reqlock); |
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257 | |
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258 | if (nreqs > max_outstanding) |
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259 | for (;;) |
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260 | { |
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261 | poll_cb (); |
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262 | |
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263 | if (nreqs <= max_outstanding) |
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264 | break; |
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265 | |
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266 | poll_wait (); |
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267 | } |
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268 | } |
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269 | |
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270 | static void |
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271 | end_thread (void) |
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272 | { |
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273 | aio_req req; |
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274 | Newz (0, req, 1, aio_cb); |
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275 | req->type = REQ_QUIT; |
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276 | |
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277 | send_req (req); |
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278 | } |
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279 | |
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280 | static void min_parallel (int nthreads) |
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281 | { |
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282 | if (wanted < nthreads) |
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283 | wanted = nthreads; |
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284 | } |
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285 | |
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286 | static void max_parallel (int nthreads) |
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287 | { |
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288 | int cur = started; |
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289 | |
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290 | if (wanted > nthreads) |
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291 | wanted = nthreads; |
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292 | |
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293 | while (cur > wanted) |
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294 | { |
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295 | end_thread (); |
|
|
296 | cur--; |
|
|
297 | } |
|
|
298 | |
|
|
299 | while (started > wanted) |
|
|
300 | { |
|
|
301 | poll_wait (); |
|
|
302 | poll_cb (); |
|
|
303 | } |
|
|
304 | } |
|
|
305 | |
|
|
306 | static void create_pipe () |
|
|
307 | { |
|
|
308 | if (pipe (respipe)) |
|
|
309 | croak ("unable to initialize result pipe"); |
|
|
310 | |
|
|
311 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
312 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
313 | |
|
|
314 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
315 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
316 | } |
|
|
317 | |
|
|
318 | static void atfork_prepare (void) |
|
|
319 | { |
|
|
320 | pthread_mutex_lock (&reqlock); |
|
|
321 | pthread_mutex_lock (&reslock); |
|
|
322 | } |
|
|
323 | |
|
|
324 | static void atfork_parent (void) |
|
|
325 | { |
|
|
326 | pthread_mutex_unlock (&reslock); |
|
|
327 | pthread_mutex_unlock (&reqlock); |
|
|
328 | } |
|
|
329 | |
|
|
330 | static void atfork_child (void) |
|
|
331 | { |
|
|
332 | aio_req prv; |
|
|
333 | |
|
|
334 | started = 0; |
|
|
335 | |
|
|
336 | while (reqs) |
|
|
337 | { |
|
|
338 | prv = reqs; |
|
|
339 | reqs = prv->next; |
|
|
340 | free_req (prv); |
|
|
341 | } |
|
|
342 | |
|
|
343 | reqs = reqe = 0; |
|
|
344 | |
|
|
345 | while (ress) |
|
|
346 | { |
|
|
347 | prv = ress; |
|
|
348 | ress = prv->next; |
|
|
349 | free_req (prv); |
|
|
350 | } |
|
|
351 | |
|
|
352 | ress = rese = 0; |
|
|
353 | |
|
|
354 | close (respipe [0]); |
|
|
355 | close (respipe [1]); |
|
|
356 | create_pipe (); |
|
|
357 | |
|
|
358 | atfork_parent (); |
|
|
359 | } |
|
|
360 | |
|
|
361 | /*****************************************************************************/ |
|
|
362 | /* work around various missing functions */ |
|
|
363 | |
|
|
364 | #if !HAVE_PREADWRITE |
|
|
365 | # define pread aio_pread |
|
|
366 | # define pwrite aio_pwrite |
|
|
367 | |
|
|
368 | /* |
|
|
369 | * make our pread/pwrite safe against themselves, but not against |
|
|
370 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
371 | * but that's your problem, not mine. |
|
|
372 | */ |
|
|
373 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
|
|
374 | |
|
|
375 | static ssize_t |
|
|
376 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
377 | { |
|
|
378 | ssize_t res; |
|
|
379 | off_t ooffset; |
|
|
380 | |
|
|
381 | pthread_mutex_lock (&iolock); |
|
|
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
383 | lseek (fd, offset, SEEK_SET); |
|
|
384 | res = read (fd, buf, count); |
|
|
385 | lseek (fd, ooffset, SEEK_SET); |
|
|
386 | pthread_mutex_unlock (&iolock); |
|
|
387 | |
|
|
388 | return res; |
|
|
389 | } |
|
|
390 | |
|
|
391 | static ssize_t |
|
|
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
393 | { |
|
|
394 | ssize_t res; |
|
|
395 | off_t ooffset; |
|
|
396 | |
|
|
397 | pthread_mutex_lock (&iolock); |
|
|
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
399 | lseek (fd, offset, SEEK_SET); |
|
|
400 | res = write (fd, buf, count); |
|
|
401 | lseek (fd, offset, SEEK_SET); |
|
|
402 | pthread_mutex_unlock (&iolock); |
|
|
403 | |
|
|
404 | return res; |
|
|
405 | } |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #if !HAVE_FDATASYNC |
|
|
409 | # define fdatasync fsync |
|
|
410 | #endif |
|
|
411 | |
|
|
412 | #if !HAVE_READAHEAD |
|
|
413 | # define readahead aio_readahead |
|
|
414 | |
|
|
415 | static char readahead_buf[4096]; |
|
|
416 | |
|
|
417 | static ssize_t |
|
|
418 | readahead (int fd, off_t offset, size_t count) |
|
|
419 | { |
|
|
420 | while (count > 0) |
|
|
421 | { |
|
|
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
423 | |
|
|
424 | pread (fd, readahead_buf, len, offset); |
|
|
425 | offset += len; |
|
|
426 | count -= len; |
|
|
427 | } |
|
|
428 | |
|
|
429 | errno = 0; |
|
|
430 | } |
|
|
431 | #endif |
|
|
432 | |
|
|
433 | /* sendfile always needs emulation */ |
|
|
434 | static ssize_t |
|
|
435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
436 | { |
|
|
437 | ssize_t res; |
|
|
438 | |
|
|
439 | if (!count) |
|
|
440 | return 0; |
|
|
441 | |
|
|
442 | #if __linux |
|
|
443 | res = sendfile (ofd, ifd, &offset, count); |
|
|
444 | |
|
|
445 | #elif __freebsd |
|
|
446 | /* |
|
|
447 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
448 | * wasted on making it similar to other i/o functions. |
|
|
449 | */ |
|
|
450 | { |
|
|
451 | off_t sbytes; |
|
|
452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
453 | |
|
|
454 | if (!res && errno == EAGAIN) |
|
|
455 | /* maybe on others, too, as usual, the manpage leaves you guessing */ |
|
|
456 | res = sbytes; |
|
|
457 | } |
|
|
458 | |
|
|
459 | #elif __hpux |
|
|
460 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
461 | |
|
|
462 | #else |
|
|
463 | res = -1; |
|
|
464 | errno = ENOSYS; |
|
|
465 | #endif |
|
|
466 | |
|
|
467 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
|
|
468 | { |
|
|
469 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
470 | char *buf = malloc (4096); |
|
|
471 | res = 0; |
|
|
472 | |
|
|
473 | for (;;) |
|
|
474 | { |
|
|
475 | ssize_t cnt; |
|
|
476 | |
|
|
477 | cnt = pread (ifd, buf, 4096, offset); |
|
|
478 | |
|
|
479 | if (cnt <= 0) |
|
|
480 | { |
|
|
481 | if (cnt && !res) res = -1; |
|
|
482 | break; |
|
|
483 | } |
|
|
484 | |
|
|
485 | cnt = write (ofd, buf, cnt); |
|
|
486 | |
|
|
487 | if (cnt <= 0) |
|
|
488 | { |
|
|
489 | if (cnt && !res) res = -1; |
|
|
490 | break; |
|
|
491 | } |
|
|
492 | |
|
|
493 | offset += cnt; |
|
|
494 | res += cnt; |
|
|
495 | } |
|
|
496 | |
|
|
497 | { |
|
|
498 | int errorno = errno; |
|
|
499 | free (buf); |
|
|
500 | errno = errorno; |
|
|
501 | } |
|
|
502 | } |
|
|
503 | |
|
|
504 | return res; |
|
|
505 | } |
|
|
506 | |
|
|
507 | /*****************************************************************************/ |
|
|
508 | |
|
|
509 | static void * |
|
|
510 | aio_proc (void *thr_arg) |
|
|
511 | { |
|
|
512 | aio_req req; |
|
|
513 | int type; |
|
|
514 | |
|
|
515 | do |
|
|
516 | { |
|
|
517 | pthread_mutex_lock (&reqlock); |
|
|
518 | |
|
|
519 | for (;;) |
|
|
520 | { |
|
|
521 | req = reqs; |
|
|
522 | |
|
|
523 | if (reqs) |
|
|
524 | { |
|
|
525 | reqs = reqs->next; |
|
|
526 | if (!reqs) reqe = 0; |
|
|
527 | } |
|
|
528 | |
|
|
529 | if (req) |
|
|
530 | break; |
243 | break; |
531 | |
244 | |
532 | pthread_cond_wait (&reqwait, &reqlock); |
245 | case EIO_GROUP: |
533 | } |
246 | req->int1 = 2; /* mark group as finished */ |
534 | |
247 | |
535 | pthread_mutex_unlock (&reqlock); |
248 | if (req->sv1) |
536 | |
|
|
537 | errno = 0; /* strictly unnecessary */ |
|
|
538 | |
|
|
539 | type = req->type; |
|
|
540 | |
|
|
541 | switch (type) |
|
|
542 | { |
249 | { |
543 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
250 | int i; |
544 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
251 | AV *av = (AV *)req->sv1; |
545 | |
252 | |
546 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
253 | EXTEND (SP, AvFILL (av) + 1); |
547 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
254 | for (i = 0; i <= AvFILL (av); ++i) |
548 | |
255 | PUSHs (*av_fetch (av, i, 0)); |
549 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
256 | } |
550 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
551 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
552 | |
|
|
553 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
554 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
555 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
556 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
557 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
558 | |
|
|
559 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
560 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
561 | |
|
|
562 | case REQ_QUIT: |
|
|
563 | break; |
257 | break; |
564 | |
258 | |
|
|
259 | case EIO_NOP: |
|
|
260 | case EIO_BUSY: |
|
|
261 | break; |
|
|
262 | |
|
|
263 | case EIO_READLINK: |
|
|
264 | if (req->result > 0) |
|
|
265 | { |
|
|
266 | SvCUR_set (req->sv2, req->result); |
|
|
267 | *SvEND (req->sv2) = 0; |
|
|
268 | PUSHs (req->sv2); |
|
|
269 | } |
|
|
270 | break; |
|
|
271 | |
|
|
272 | case EIO_STAT: |
|
|
273 | case EIO_LSTAT: |
|
|
274 | case EIO_FSTAT: |
|
|
275 | PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
276 | PL_laststatval = req->result; |
|
|
277 | PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
|
|
278 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
279 | break; |
|
|
280 | |
|
|
281 | case EIO_READ: |
|
|
282 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
283 | *SvEND (req->sv2) = 0; |
|
|
284 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
285 | break; |
|
|
286 | |
|
|
287 | case EIO_DUP2: |
|
|
288 | if (req->result > 0) |
|
|
289 | req->result = 0; |
|
|
290 | /* FALLTHROUGH */ |
|
|
291 | |
565 | default: |
292 | default: |
566 | req->result = ENOSYS; |
293 | PUSHs (sv_2mortal (newSViv (req->result))); |
567 | break; |
294 | break; |
568 | } |
295 | } |
569 | |
296 | |
570 | req->errorno = errno; |
297 | errno = req->errorno; |
571 | |
298 | |
572 | pthread_mutex_lock (&reslock); |
299 | PUTBACK; |
|
|
300 | call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
|
|
301 | SPAGAIN; |
573 | |
302 | |
574 | req->next = 0; |
303 | FREETMPS; |
|
|
304 | LEAVE; |
575 | |
305 | |
576 | if (rese) |
306 | PUTBACK; |
577 | { |
|
|
578 | rese->next = req; |
|
|
579 | rese = req; |
|
|
580 | } |
|
|
581 | else |
|
|
582 | { |
|
|
583 | rese = ress = req; |
|
|
584 | |
|
|
585 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
586 | write (respipe [1], &respipe, 1); |
|
|
587 | } |
|
|
588 | |
|
|
589 | pthread_mutex_unlock (&reslock); |
|
|
590 | } |
307 | } |
591 | while (type != REQ_QUIT); |
|
|
592 | |
308 | |
|
|
309 | return !!SvTRUE (ERRSV); |
|
|
310 | } |
|
|
311 | |
|
|
312 | static void req_destroy (aio_req req) |
|
|
313 | { |
|
|
314 | if (req->self) |
|
|
315 | { |
|
|
316 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
317 | SvREFCNT_dec (req->self); |
|
|
318 | } |
|
|
319 | |
|
|
320 | SvREFCNT_dec (req->sv1); |
|
|
321 | SvREFCNT_dec (req->sv2); |
|
|
322 | SvREFCNT_dec (req->callback); |
|
|
323 | |
|
|
324 | Safefree (req); |
|
|
325 | } |
|
|
326 | |
|
|
327 | static void req_cancel_subs (aio_req grp) |
|
|
328 | { |
|
|
329 | aio_req sub; |
|
|
330 | |
|
|
331 | if (grp->type != EIO_GROUP) |
|
|
332 | return; |
|
|
333 | |
|
|
334 | SvREFCNT_dec (grp->sv2); |
|
|
335 | grp->sv2 = 0; |
|
|
336 | |
|
|
337 | eio_grp_cancel (grp); |
|
|
338 | } |
|
|
339 | |
|
|
340 | #ifdef USE_SOCKETS_AS_HANDLES |
|
|
341 | # define TO_SOCKET(x) (win32_get_osfhandle (x)) |
|
|
342 | #else |
|
|
343 | # define TO_SOCKET(x) (x) |
|
|
344 | #endif |
|
|
345 | |
|
|
346 | static void |
|
|
347 | create_respipe (void) |
|
|
348 | { |
|
|
349 | int old_readfd = respipe [0]; |
|
|
350 | |
|
|
351 | if (respipe [1] >= 0) |
|
|
352 | respipe_close (TO_SOCKET (respipe [1])); |
|
|
353 | |
|
|
354 | #ifdef _WIN32 |
|
|
355 | if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
|
|
356 | #else |
|
|
357 | if (pipe (respipe)) |
|
|
358 | #endif |
|
|
359 | croak ("unable to initialize result pipe"); |
|
|
360 | |
|
|
361 | if (old_readfd >= 0) |
|
|
362 | { |
|
|
363 | if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
|
|
364 | croak ("unable to initialize result pipe(2)"); |
|
|
365 | |
|
|
366 | respipe_close (respipe [0]); |
|
|
367 | respipe [0] = old_readfd; |
|
|
368 | } |
|
|
369 | |
|
|
370 | #ifdef _WIN32 |
|
|
371 | int arg = 1; |
|
|
372 | if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
|
|
373 | || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
|
|
374 | #else |
|
|
375 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
|
|
376 | || fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
377 | #endif |
|
|
378 | croak ("unable to initialize result pipe(3)"); |
|
|
379 | |
|
|
380 | respipe_osf [0] = TO_SOCKET (respipe [0]); |
|
|
381 | respipe_osf [1] = TO_SOCKET (respipe [1]); |
|
|
382 | } |
|
|
383 | |
|
|
384 | static void poll_wait (void) |
|
|
385 | { |
|
|
386 | fd_set rfd; |
|
|
387 | |
|
|
388 | while (eio_nreqs ()) |
|
|
389 | { |
|
|
390 | int size; |
|
|
391 | |
|
|
392 | X_LOCK (reslock); |
|
|
393 | size = res_queue.size; |
|
|
394 | X_UNLOCK (reslock); |
|
|
395 | |
|
|
396 | if (size) |
|
|
397 | return; |
|
|
398 | |
|
|
399 | maybe_start_thread (); |
|
|
400 | |
|
|
401 | FD_ZERO (&rfd); |
|
|
402 | FD_SET (respipe [0], &rfd); |
|
|
403 | |
|
|
404 | PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
405 | } |
|
|
406 | } |
|
|
407 | |
|
|
408 | static int poll_cb (void) |
|
|
409 | { |
|
|
410 | int res = eio_poll (); |
|
|
411 | |
|
|
412 | if (res > 0) |
|
|
413 | croak (0); |
|
|
414 | |
593 | return 0; |
415 | return res; |
594 | } |
416 | } |
595 | |
417 | |
596 | #define dREQ \ |
418 | #define dREQ \ |
597 | aio_req req; \ |
419 | aio_req req; \ |
|
|
420 | int req_pri = next_pri; \ |
|
|
421 | next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \ |
598 | \ |
422 | \ |
599 | if (SvOK (callback) && !SvROK (callback)) \ |
423 | if (SvOK (callback) && !SvROK (callback)) \ |
600 | croak ("clalback must be undef or of reference type"); \ |
424 | croak ("callback must be undef or of reference type"); \ |
601 | \ |
425 | \ |
602 | Newz (0, req, 1, aio_cb); \ |
426 | Newz (0, req, 1, eio_req); \ |
603 | if (!req) \ |
427 | if (!req) \ |
604 | croak ("out of memory during aio_req allocation"); \ |
428 | croak ("out of memory during eio_req allocation"); \ |
605 | \ |
429 | \ |
606 | req->callback = newSVsv (callback); |
430 | req->callback = newSVsv (callback); \ |
|
|
431 | req->pri = req_pri |
|
|
432 | |
|
|
433 | #define REQ_SEND \ |
|
|
434 | eio_submit (req); \ |
|
|
435 | \ |
|
|
436 | if (GIMME_V != G_VOID) \ |
|
|
437 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
607 | |
438 | |
608 | MODULE = IO::AIO PACKAGE = IO::AIO |
439 | MODULE = IO::AIO PACKAGE = IO::AIO |
609 | |
440 | |
610 | PROTOTYPES: ENABLE |
441 | PROTOTYPES: ENABLE |
611 | |
442 | |
612 | BOOT: |
443 | BOOT: |
613 | { |
444 | { |
614 | create_pipe (); |
445 | stash = gv_stashpv ("IO::AIO", 1); |
615 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
|
|
616 | } |
|
|
617 | |
446 | |
|
|
447 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
448 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
449 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
450 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
451 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
452 | #ifdef _WIN32 |
|
|
453 | X_MUTEX_CHECK (wrklock); |
|
|
454 | X_MUTEX_CHECK (reslock); |
|
|
455 | X_MUTEX_CHECK (reqlock); |
|
|
456 | X_MUTEX_CHECK (reqwait); |
|
|
457 | X_MUTEX_CHECK (preadwritelock); |
|
|
458 | X_MUTEX_CHECK (readdirlock); |
|
|
459 | |
|
|
460 | X_COND_CHECK (reqwait); |
|
|
461 | #else |
|
|
462 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
463 | #endif |
|
|
464 | |
|
|
465 | create_respipe (); |
|
|
466 | |
|
|
467 | if (eio_init (want_poll, done_poll) < 0) |
|
|
468 | croak ("IO::AIO: unable to initialise eio library"); |
|
|
469 | } |
|
|
470 | |
618 | void |
471 | void |
619 | min_parallel(nthreads) |
472 | max_poll_reqs (int nreqs) |
620 | int nthreads |
|
|
621 | PROTOTYPE: $ |
473 | PROTOTYPE: $ |
|
|
474 | CODE: |
|
|
475 | eio_set_max_poll_reqs (nreqs); |
622 | |
476 | |
623 | void |
477 | void |
624 | max_parallel(nthreads) |
478 | max_poll_time (double nseconds) |
625 | int nthreads |
|
|
626 | PROTOTYPE: $ |
479 | PROTOTYPE: $ |
627 | |
|
|
628 | int |
|
|
629 | max_outstanding(nreqs) |
|
|
630 | int nreqs |
|
|
631 | PROTOTYPE: $ |
|
|
632 | CODE: |
480 | CODE: |
633 | RETVAL = max_outstanding; |
481 | eio_set_max_poll_time (nseconds); |
|
|
482 | |
|
|
483 | void |
|
|
484 | min_parallel (int nthreads) |
|
|
485 | PROTOTYPE: $ |
|
|
486 | CODE: |
|
|
487 | eio_set_min_parallel (nthreads); |
|
|
488 | |
|
|
489 | void |
|
|
490 | max_parallel (int nthreads) |
|
|
491 | PROTOTYPE: $ |
|
|
492 | CODE: |
|
|
493 | eio_set_max_parallel (nthreads); |
|
|
494 | |
|
|
495 | void |
|
|
496 | max_idle (int nthreads) |
|
|
497 | PROTOTYPE: $ |
|
|
498 | CODE: |
|
|
499 | eio_set_max_idle (nthreads); |
|
|
500 | |
|
|
501 | void |
|
|
502 | max_outstanding (int maxreqs) |
|
|
503 | PROTOTYPE: $ |
|
|
504 | CODE: |
634 | max_outstanding = nreqs; |
505 | max_outstanding = maxreqs; |
635 | |
506 | |
636 | void |
507 | void |
637 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
508 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
638 | SV * pathname |
|
|
639 | int flags |
|
|
640 | int mode |
|
|
641 | SV * callback |
|
|
642 | PROTOTYPE: $$$;$ |
509 | PROTOTYPE: $$$;$ |
643 | CODE: |
510 | PPCODE: |
644 | { |
511 | { |
645 | dREQ; |
512 | dREQ; |
646 | |
513 | |
647 | req->type = REQ_OPEN; |
514 | req->type = EIO_OPEN; |
648 | req->data = newSVsv (pathname); |
515 | req->sv1 = newSVsv (pathname); |
649 | req->dataptr = SvPVbyte_nolen (req->data); |
516 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
650 | req->fd = flags; |
517 | req->int1 = flags; |
651 | req->mode = mode; |
518 | req->int2 = mode; |
652 | |
519 | |
653 | send_req (req); |
520 | REQ_SEND; |
654 | } |
521 | } |
655 | |
522 | |
656 | void |
523 | void |
657 | aio_close(fh,callback=&PL_sv_undef) |
524 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
658 | SV * fh |
|
|
659 | SV * callback |
|
|
660 | PROTOTYPE: $;$ |
525 | PROTOTYPE: $;$ |
661 | ALIAS: |
526 | ALIAS: |
662 | aio_close = REQ_CLOSE |
|
|
663 | aio_fsync = REQ_FSYNC |
527 | aio_fsync = EIO_FSYNC |
664 | aio_fdatasync = REQ_FDATASYNC |
528 | aio_fdatasync = EIO_FDATASYNC |
665 | CODE: |
529 | PPCODE: |
666 | { |
530 | { |
667 | dREQ; |
531 | dREQ; |
668 | |
532 | |
669 | req->type = ix; |
533 | req->type = ix; |
670 | req->fh = newSVsv (fh); |
534 | req->sv1 = newSVsv (fh); |
671 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
535 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
672 | |
536 | |
673 | send_req (req); |
537 | REQ_SEND (req); |
674 | } |
538 | } |
675 | |
539 | |
676 | void |
540 | void |
|
|
541 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
|
|
542 | PROTOTYPE: $;$ |
|
|
543 | PPCODE: |
|
|
544 | { |
|
|
545 | static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
|
|
546 | dREQ; |
|
|
547 | |
|
|
548 | if (close_pipe < 0) |
|
|
549 | { |
|
|
550 | int pipefd [2]; |
|
|
551 | |
|
|
552 | if (pipe (pipefd) < 0 |
|
|
553 | || close (pipefd [1]) < 0 |
|
|
554 | || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
|
|
555 | abort (); /*D*/ |
|
|
556 | |
|
|
557 | close_pipe = pipefd [0]; |
|
|
558 | } |
|
|
559 | |
|
|
560 | req->type = EIO_DUP2; |
|
|
561 | req->int1 = close_pipe; |
|
|
562 | req->sv2 = newSVsv (fh); |
|
|
563 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
564 | |
|
|
565 | REQ_SEND (req); |
|
|
566 | } |
|
|
567 | |
|
|
568 | void |
677 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
569 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
678 | SV * fh |
|
|
679 | UV offset |
|
|
680 | UV length |
|
|
681 | SV * data |
|
|
682 | UV dataoffset |
|
|
683 | SV * callback |
|
|
684 | ALIAS: |
570 | ALIAS: |
685 | aio_read = REQ_READ |
571 | aio_read = EIO_READ |
686 | aio_write = REQ_WRITE |
572 | aio_write = EIO_WRITE |
687 | PROTOTYPE: $$$$$;$ |
573 | PROTOTYPE: $$$$$;$ |
688 | CODE: |
574 | PPCODE: |
689 | { |
575 | { |
690 | aio_req req; |
|
|
691 | STRLEN svlen; |
576 | STRLEN svlen; |
692 | char *svptr = SvPVbyte (data, svlen); |
577 | char *svptr = SvPVbyte (data, svlen); |
|
|
578 | UV len = SvUV (length); |
693 | |
579 | |
694 | SvUPGRADE (data, SVt_PV); |
580 | SvUPGRADE (data, SVt_PV); |
695 | SvPOK_on (data); |
581 | SvPOK_on (data); |
696 | |
582 | |
697 | if (dataoffset < 0) |
583 | if (dataoffset < 0) |
698 | dataoffset += svlen; |
584 | dataoffset += svlen; |
699 | |
585 | |
700 | if (dataoffset < 0 || dataoffset > svlen) |
586 | if (dataoffset < 0 || dataoffset > svlen) |
701 | croak ("data offset outside of string"); |
587 | croak ("dataoffset outside of data scalar"); |
702 | |
588 | |
703 | if (ix == REQ_WRITE) |
589 | if (ix == EIO_WRITE) |
704 | { |
590 | { |
705 | /* write: check length and adjust. */ |
591 | /* write: check length and adjust. */ |
706 | if (length < 0 || length + dataoffset > svlen) |
592 | if (!SvOK (length) || len + dataoffset > svlen) |
707 | length = svlen - dataoffset; |
593 | len = svlen - dataoffset; |
708 | } |
594 | } |
709 | else |
595 | else |
710 | { |
596 | { |
711 | /* read: grow scalar as necessary */ |
597 | /* read: grow scalar as necessary */ |
712 | svptr = SvGROW (data, length + dataoffset); |
598 | svptr = SvGROW (data, len + dataoffset + 1); |
713 | } |
599 | } |
714 | |
600 | |
715 | if (length < 0) |
601 | if (len < 0) |
716 | croak ("length must not be negative"); |
602 | croak ("length must not be negative"); |
717 | |
603 | |
718 | { |
604 | { |
719 | dREQ; |
605 | dREQ; |
720 | |
606 | |
721 | req->type = ix; |
607 | req->type = ix; |
722 | req->fh = newSVsv (fh); |
608 | req->sv1 = newSVsv (fh); |
723 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
609 | req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) |
724 | : IoOFP (sv_2io (fh))); |
610 | : IoOFP (sv_2io (fh))); |
|
|
611 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
725 | req->offset = offset; |
612 | req->size = len; |
726 | req->length = length; |
|
|
727 | req->data = SvREFCNT_inc (data); |
613 | req->sv2 = SvREFCNT_inc (data); |
728 | req->dataptr = (char *)svptr + dataoffset; |
614 | req->ptr2 = (char *)svptr + dataoffset; |
|
|
615 | req->stroffset = dataoffset; |
729 | |
616 | |
730 | if (!SvREADONLY (data)) |
617 | if (!SvREADONLY (data)) |
731 | { |
618 | { |
732 | SvREADONLY_on (data); |
619 | SvREADONLY_on (data); |
733 | req->data2ptr = (void *)data; |
620 | req->flags |= FLAG_SV2_RO_OFF; |
734 | } |
621 | } |
735 | |
622 | |
736 | send_req (req); |
623 | REQ_SEND; |
737 | } |
624 | } |
738 | } |
625 | } |
739 | |
626 | |
740 | void |
627 | void |
|
|
628 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
629 | PROTOTYPE: $$;$ |
|
|
630 | PPCODE: |
|
|
631 | { |
|
|
632 | SV *data; |
|
|
633 | dREQ; |
|
|
634 | |
|
|
635 | data = newSV (NAME_MAX); |
|
|
636 | SvPOK_on (data); |
|
|
637 | |
|
|
638 | req->type = EIO_READLINK; |
|
|
639 | req->sv1 = newSVsv (path); |
|
|
640 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
641 | req->sv2 = data; |
|
|
642 | req->ptr2 = SvPVbyte_nolen (data); |
|
|
643 | |
|
|
644 | REQ_SEND; |
|
|
645 | } |
|
|
646 | |
|
|
647 | void |
741 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
648 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
742 | SV * out_fh |
|
|
743 | SV * in_fh |
|
|
744 | UV in_offset |
|
|
745 | UV length |
|
|
746 | SV * callback |
|
|
747 | PROTOTYPE: $$$$;$ |
649 | PROTOTYPE: $$$$;$ |
748 | CODE: |
650 | PPCODE: |
749 | { |
651 | { |
750 | dREQ; |
652 | dREQ; |
751 | |
653 | |
752 | req->type = REQ_SENDFILE; |
654 | req->type = EIO_SENDFILE; |
753 | req->fh = newSVsv (out_fh); |
655 | req->sv1 = newSVsv (out_fh); |
754 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
656 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
755 | req->fh2 = newSVsv (in_fh); |
657 | req->sv2 = newSVsv (in_fh); |
756 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
658 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
757 | req->offset = in_offset; |
659 | req->offs = SvVAL64 (in_offset); |
758 | req->length = length; |
660 | req->size = length; |
759 | |
661 | |
760 | send_req (req); |
662 | REQ_SEND; |
761 | } |
663 | } |
762 | |
664 | |
763 | void |
665 | void |
764 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
666 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
765 | SV * fh |
|
|
766 | UV offset |
|
|
767 | IV length |
|
|
768 | SV * callback |
|
|
769 | PROTOTYPE: $$$;$ |
667 | PROTOTYPE: $$$;$ |
770 | CODE: |
668 | PPCODE: |
771 | { |
669 | { |
772 | dREQ; |
670 | dREQ; |
773 | |
671 | |
774 | req->type = REQ_READAHEAD; |
672 | req->type = EIO_READAHEAD; |
775 | req->fh = newSVsv (fh); |
673 | req->sv1 = newSVsv (fh); |
776 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
674 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
777 | req->offset = offset; |
675 | req->offs = SvVAL64 (offset); |
778 | req->length = length; |
676 | req->size = length; |
779 | |
677 | |
780 | send_req (req); |
678 | REQ_SEND; |
781 | } |
679 | } |
782 | |
680 | |
783 | void |
681 | void |
784 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
682 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
785 | SV * fh_or_path |
|
|
786 | SV * callback |
|
|
787 | ALIAS: |
683 | ALIAS: |
788 | aio_stat = REQ_STAT |
684 | aio_stat = EIO_STAT |
789 | aio_lstat = REQ_LSTAT |
685 | aio_lstat = EIO_LSTAT |
790 | CODE: |
686 | PPCODE: |
791 | { |
687 | { |
792 | dREQ; |
688 | dREQ; |
793 | |
689 | |
794 | New (0, req->statdata, 1, Stat_t); |
690 | req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT)); |
795 | if (!req->statdata) |
691 | if (!req->ptr2) |
796 | { |
692 | { |
797 | free_req (req); |
693 | req_destroy (req); |
798 | croak ("out of memory during aio_req->statdata allocation"); |
694 | croak ("out of memory during aio_stat statdata allocation"); |
799 | } |
695 | } |
|
|
696 | |
|
|
697 | req->flags |= EIO_FLAG_PTR2_FREE; |
|
|
698 | req->sv1 = newSVsv (fh_or_path); |
800 | |
699 | |
801 | if (SvPOK (fh_or_path)) |
700 | if (SvPOK (fh_or_path)) |
802 | { |
701 | { |
803 | req->type = ix; |
702 | req->type = ix; |
804 | req->data = newSVsv (fh_or_path); |
|
|
805 | req->dataptr = SvPVbyte_nolen (req->data); |
703 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
806 | } |
704 | } |
807 | else |
705 | else |
808 | { |
706 | { |
809 | req->type = REQ_FSTAT; |
707 | req->type = EIO_FSTAT; |
810 | req->fh = newSVsv (fh_or_path); |
|
|
811 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
708 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
709 | } |
|
|
710 | |
|
|
711 | REQ_SEND; |
|
|
712 | } |
|
|
713 | |
|
|
714 | void |
|
|
715 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
716 | PPCODE: |
|
|
717 | { |
|
|
718 | dREQ; |
|
|
719 | |
|
|
720 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
721 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
722 | req->sv1 = newSVsv (fh_or_path); |
|
|
723 | |
|
|
724 | if (SvPOK (fh_or_path)) |
812 | } |
725 | { |
|
|
726 | req->type = EIO_UTIME; |
|
|
727 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
728 | } |
|
|
729 | else |
|
|
730 | { |
|
|
731 | req->type = EIO_FUTIME; |
|
|
732 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
733 | } |
813 | |
734 | |
814 | send_req (req); |
735 | REQ_SEND; |
815 | } |
736 | } |
816 | |
737 | |
817 | void |
738 | void |
|
|
739 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
740 | PPCODE: |
|
|
741 | { |
|
|
742 | dREQ; |
|
|
743 | |
|
|
744 | req->sv1 = newSVsv (fh_or_path); |
|
|
745 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
746 | |
|
|
747 | if (SvPOK (fh_or_path)) |
|
|
748 | { |
|
|
749 | req->type = EIO_TRUNCATE; |
|
|
750 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
751 | } |
|
|
752 | else |
|
|
753 | { |
|
|
754 | req->type = EIO_FTRUNCATE; |
|
|
755 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
756 | } |
|
|
757 | |
|
|
758 | REQ_SEND; |
|
|
759 | } |
|
|
760 | |
|
|
761 | void |
|
|
762 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
763 | ALIAS: |
|
|
764 | aio_chmod = EIO_CHMOD |
|
|
765 | aio_fchmod = EIO_FCHMOD |
|
|
766 | aio_mkdir = EIO_MKDIR |
|
|
767 | PPCODE: |
|
|
768 | { |
|
|
769 | dREQ; |
|
|
770 | |
|
|
771 | req->type = ix; |
|
|
772 | req->int2 = mode; |
|
|
773 | req->sv1 = newSVsv (fh_or_path); |
|
|
774 | |
|
|
775 | if (ix == EIO_FCHMOD) |
|
|
776 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
777 | else |
|
|
778 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
779 | |
|
|
780 | REQ_SEND; |
|
|
781 | } |
|
|
782 | |
|
|
783 | void |
|
|
784 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
785 | PPCODE: |
|
|
786 | { |
|
|
787 | dREQ; |
|
|
788 | |
|
|
789 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
790 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
791 | req->sv1 = newSVsv (fh_or_path); |
|
|
792 | |
|
|
793 | if (SvPOK (fh_or_path)) |
|
|
794 | { |
|
|
795 | req->type = EIO_CHOWN; |
|
|
796 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
797 | } |
|
|
798 | else |
|
|
799 | { |
|
|
800 | req->type = EIO_FCHOWN; |
|
|
801 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
802 | } |
|
|
803 | |
|
|
804 | REQ_SEND; |
|
|
805 | } |
|
|
806 | |
|
|
807 | void |
818 | aio_unlink(pathname,callback=&PL_sv_undef) |
808 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
819 | SV * pathname |
|
|
820 | SV * callback |
|
|
821 | ALIAS: |
809 | ALIAS: |
822 | aio_unlink = REQ_UNLINK |
810 | aio_unlink = EIO_UNLINK |
823 | aio_rmdir = REQ_RMDIR |
811 | aio_rmdir = EIO_RMDIR |
|
|
812 | aio_readdir = EIO_READDIR |
824 | CODE: |
813 | PPCODE: |
825 | { |
814 | { |
826 | dREQ; |
815 | dREQ; |
827 | |
816 | |
828 | req->type = ix; |
817 | req->type = ix; |
829 | req->data = newSVsv (pathname); |
818 | req->sv1 = newSVsv (pathname); |
830 | req->dataptr = SvPVbyte_nolen (req->data); |
819 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
820 | |
|
|
821 | REQ_SEND; |
|
|
822 | } |
|
|
823 | |
|
|
824 | void |
|
|
825 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
826 | ALIAS: |
|
|
827 | aio_link = EIO_LINK |
|
|
828 | aio_symlink = EIO_SYMLINK |
|
|
829 | aio_rename = EIO_RENAME |
|
|
830 | PPCODE: |
|
|
831 | { |
|
|
832 | dREQ; |
831 | |
833 | |
832 | send_req (req); |
834 | req->type = ix; |
833 | } |
835 | req->sv1 = newSVsv (oldpath); |
834 | |
836 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
835 | void |
837 | req->sv2 = newSVsv (newpath); |
836 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
838 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
837 | SV * oldpath |
|
|
838 | SV * newpath |
|
|
839 | SV * callback |
|
|
840 | CODE: |
|
|
841 | { |
|
|
842 | dREQ; |
|
|
843 | |
839 | |
844 | req->type = REQ_SYMLINK; |
840 | REQ_SEND; |
845 | req->fh = newSVsv (oldpath); |
841 | } |
846 | req->data2ptr = SvPVbyte_nolen (req->fh); |
842 | |
847 | req->data = newSVsv (newpath); |
843 | void |
848 | req->dataptr = SvPVbyte_nolen (req->data); |
844 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
845 | PPCODE: |
|
|
846 | { |
|
|
847 | dREQ; |
849 | |
848 | |
850 | send_req (req); |
849 | req->type = EIO_MKNOD; |
|
|
850 | req->sv1 = newSVsv (pathname); |
|
|
851 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
852 | req->int2 = (mode_t)mode; |
|
|
853 | req->offs = dev; |
|
|
854 | |
|
|
855 | REQ_SEND; |
851 | } |
856 | } |
852 | |
857 | |
853 | void |
858 | void |
|
|
859 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
860 | PPCODE: |
|
|
861 | { |
|
|
862 | dREQ; |
|
|
863 | |
|
|
864 | req->type = EIO_BUSY; |
|
|
865 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
866 | |
|
|
867 | REQ_SEND; |
|
|
868 | } |
|
|
869 | |
|
|
870 | void |
|
|
871 | aio_group (SV *callback=&PL_sv_undef) |
|
|
872 | PROTOTYPE: ;$ |
|
|
873 | PPCODE: |
|
|
874 | { |
|
|
875 | dREQ; |
|
|
876 | |
|
|
877 | req->type = EIO_GROUP; |
|
|
878 | |
|
|
879 | eio_submit (req); |
|
|
880 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
881 | } |
|
|
882 | |
|
|
883 | void |
|
|
884 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
885 | ALIAS: |
|
|
886 | aio_nop = EIO_NOP |
|
|
887 | aio_sync = EIO_SYNC |
|
|
888 | PPCODE: |
|
|
889 | { |
|
|
890 | dREQ; |
|
|
891 | |
|
|
892 | req->type = ix; |
|
|
893 | |
|
|
894 | REQ_SEND; |
|
|
895 | } |
|
|
896 | |
|
|
897 | int |
|
|
898 | aioreq_pri (int pri = 0) |
|
|
899 | PROTOTYPE: ;$ |
|
|
900 | CODE: |
|
|
901 | RETVAL = next_pri - EIO_PRI_BIAS; |
|
|
902 | if (items > 0) |
|
|
903 | { |
|
|
904 | if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
|
|
905 | if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
|
|
906 | next_pri = pri + EIO_PRI_BIAS; |
|
|
907 | } |
|
|
908 | OUTPUT: |
|
|
909 | RETVAL |
|
|
910 | |
|
|
911 | void |
|
|
912 | aioreq_nice (int nice = 0) |
|
|
913 | CODE: |
|
|
914 | nice = next_pri - nice; |
|
|
915 | if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
|
|
916 | if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
|
|
917 | next_pri = nice + EIO_PRI_BIAS; |
|
|
918 | |
|
|
919 | void |
854 | flush() |
920 | flush () |
855 | PROTOTYPE: |
921 | PROTOTYPE: |
856 | CODE: |
922 | CODE: |
857 | while (nreqs) |
923 | while (nreqs) |
858 | { |
924 | { |
859 | poll_wait (); |
925 | poll_wait (); |
860 | poll_cb (); |
926 | poll_cb (); |
861 | } |
927 | } |
862 | |
928 | |
863 | void |
929 | int |
864 | poll() |
930 | poll() |
865 | PROTOTYPE: |
931 | PROTOTYPE: |
866 | CODE: |
932 | CODE: |
867 | if (nreqs) |
|
|
868 | { |
|
|
869 | poll_wait (); |
933 | poll_wait (); |
870 | poll_cb (); |
934 | RETVAL = poll_cb (); |
871 | } |
935 | OUTPUT: |
|
|
936 | RETVAL |
872 | |
937 | |
873 | int |
938 | int |
874 | poll_fileno() |
939 | poll_fileno() |
875 | PROTOTYPE: |
940 | PROTOTYPE: |
876 | CODE: |
941 | CODE: |
… | |
… | |
888 | |
953 | |
889 | void |
954 | void |
890 | poll_wait() |
955 | poll_wait() |
891 | PROTOTYPE: |
956 | PROTOTYPE: |
892 | CODE: |
957 | CODE: |
893 | if (nreqs) |
|
|
894 | poll_wait (); |
958 | poll_wait (); |
895 | |
959 | |
896 | int |
960 | int |
897 | nreqs() |
961 | nreqs() |
898 | PROTOTYPE: |
962 | PROTOTYPE: |
899 | CODE: |
963 | CODE: |
900 | RETVAL = nreqs; |
964 | RETVAL = eio_nreqs (); |
901 | OUTPUT: |
965 | OUTPUT: |
902 | RETVAL |
966 | RETVAL |
903 | |
967 | |
|
|
968 | int |
|
|
969 | nready() |
|
|
970 | PROTOTYPE: |
|
|
971 | CODE: |
|
|
972 | RETVAL = eio_nready (); |
|
|
973 | OUTPUT: |
|
|
974 | RETVAL |
|
|
975 | |
|
|
976 | int |
|
|
977 | npending() |
|
|
978 | PROTOTYPE: |
|
|
979 | CODE: |
|
|
980 | RETVAL = eio_npending (); |
|
|
981 | OUTPUT: |
|
|
982 | RETVAL |
|
|
983 | |
|
|
984 | int |
|
|
985 | nthreads() |
|
|
986 | PROTOTYPE: |
|
|
987 | CODE: |
|
|
988 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
|
|
989 | RETVAL = started; |
|
|
990 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
|
|
991 | OUTPUT: |
|
|
992 | RETVAL |
|
|
993 | |
|
|
994 | PROTOTYPES: DISABLE |
|
|
995 | |
|
|
996 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
997 | |
|
|
998 | void |
|
|
999 | cancel (aio_req_ornot req) |
|
|
1000 | CODE: |
|
|
1001 | eio_cancel (req); |
|
|
1002 | |
|
|
1003 | void |
|
|
1004 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1005 | CODE: |
|
|
1006 | SvREFCNT_dec (req->callback); |
|
|
1007 | req->callback = newSVsv (callback); |
|
|
1008 | |
|
|
1009 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1010 | |
|
|
1011 | void |
|
|
1012 | add (aio_req grp, ...) |
|
|
1013 | PPCODE: |
|
|
1014 | { |
|
|
1015 | int i; |
|
|
1016 | |
|
|
1017 | if (grp->int1 == 2) |
|
|
1018 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1019 | |
|
|
1020 | for (i = 1; i < items; ++i ) |
|
|
1021 | { |
|
|
1022 | aio_req req; |
|
|
1023 | |
|
|
1024 | if (GIMME_V != G_VOID) |
|
|
1025 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1026 | |
|
|
1027 | req = SvAIO_REQ (ST (i)); |
|
|
1028 | |
|
|
1029 | if (req) |
|
|
1030 | eio_grp_add (grp, req); |
|
|
1031 | } |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | void |
|
|
1035 | cancel_subs (aio_req_ornot req) |
|
|
1036 | CODE: |
|
|
1037 | req_cancel_subs (req); |
|
|
1038 | |
|
|
1039 | void |
|
|
1040 | result (aio_req grp, ...) |
|
|
1041 | CODE: |
|
|
1042 | { |
|
|
1043 | int i; |
|
|
1044 | AV *av; |
|
|
1045 | |
|
|
1046 | grp->errorno = errno; |
|
|
1047 | |
|
|
1048 | av = newAV (); |
|
|
1049 | |
|
|
1050 | for (i = 1; i < items; ++i ) |
|
|
1051 | av_push (av, newSVsv (ST (i))); |
|
|
1052 | |
|
|
1053 | SvREFCNT_dec (grp->sv1); |
|
|
1054 | grp->sv1 = (SV *)av; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | void |
|
|
1058 | errno (aio_req grp, int errorno = errno) |
|
|
1059 | CODE: |
|
|
1060 | grp->errorno = errorno; |
|
|
1061 | |
|
|
1062 | void |
|
|
1063 | limit (aio_req grp, int limit) |
|
|
1064 | CODE: |
|
|
1065 | eio_grp_limit (grp, limit); |
|
|
1066 | |
|
|
1067 | void |
|
|
1068 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1069 | CODE: |
|
|
1070 | { |
|
|
1071 | SvREFCNT_dec (grp->sv2); |
|
|
1072 | grp->sv2 = newSVsv (callback); |
|
|
1073 | |
|
|
1074 | if (grp->int2 <= 0) |
|
|
1075 | grp->int2 = 2; |
|
|
1076 | |
|
|
1077 | eio_grp_limit (grp, grp->int2); |
|
|
1078 | } |
|
|
1079 | |