| 1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" |
2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
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4 | |
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5 | #include <fcntl.h> |
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6 | #include <unistd.h> |
| 4 | |
7 | |
| 5 | typedef CV *B__CV; |
8 | typedef CV *B__CV; |
| 6 | |
9 | |
| 7 | static OP *(*old_entersub)(pTHX); |
10 | static OP *(*old_entersub)(pTHX); |
| 8 | |
11 | |
| 9 | int count = 1; |
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| 10 | |
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| 11 | // this is, of course, a slower entersub |
12 | // this is, of course, a slower entersub |
| 12 | static OP * |
13 | static OP * |
| 13 | faster_entersub (pTHX) |
14 | faster_entersub (pTHX) |
| 14 | { |
15 | { |
| 15 | dSP; |
16 | static int in_perl; |
| 16 | dTOPss; |
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| 17 | |
17 | |
| 18 | if (SvTYPE (sv) == SVt_PVGV) |
18 | if (!PL_compcv || in_perl) // only when not compiling, reduces recompiling due to op-address-shift |
| 19 | sv = (SV *)GvCV (sv); |
19 | { |
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20 | dSP; |
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21 | dTOPss; |
| 20 | |
22 | |
| 21 | if (sv) |
23 | ++in_perl; |
| 22 | { |
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| 23 | // only once for now |
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| 24 | PL_op->op_ppaddr = old_entersub; |
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| 25 | |
24 | |
| 26 | // only simple cv calls for now |
25 | if (SvTYPE (sv) == SVt_PVGV) |
| 27 | if (!PL_perldb && !PL_tainting |
26 | sv = (SV *)GvCV (sv); |
| 28 | && SvTYPE (sv) == SVt_PVCV && !CvXSUB (sv) |
27 | |
| 29 | && CvSTART (sv)->op_type != OP_NULL) // shield against compiling an already-compiled op |
28 | if (sv) |
| 30 | { |
29 | { |
| 31 | SV *bsv = newSViv (PTR2IV (sv)); |
30 | // only once for now |
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31 | PL_op->op_ppaddr = old_entersub; |
| 32 | |
32 | |
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33 | // only simple cv calls for now |
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34 | if (!PL_perldb && !PL_tainting |
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35 | && SvTYPE (sv) == SVt_PVCV && !CvXSUB (sv) |
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36 | && CvSTART (sv) // must exist |
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37 | && CvSTART (sv)->op_type != OP_NULL) // shield against compiling an already-compiled op |
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38 | { |
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39 | SV *bsv = newSViv (PTR2IV (sv)); |
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40 | |
| 33 | ENTER; |
41 | ENTER; |
| 34 | SAVETMPS; |
42 | SAVETMPS; |
| 35 | PUSHMARK (SP); |
43 | PUSHMARK (SP); |
| 36 | // emulate B::CV typemap entry we don't have |
44 | // emulate B::CV typemap entry we don't have |
| 37 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (bsv), gv_stashpv ("B::CV", 1)))); |
45 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (bsv), gv_stashpv ("B::CV", 1)))); |
| 38 | PUTBACK; |
46 | PUTBACK; |
| 39 | call_pv ("Faster::entersub", G_VOID|G_DISCARD|G_EVAL); |
47 | call_pv ("Faster::entersub", G_VOID|G_DISCARD|G_EVAL); |
| 40 | SPAGAIN; |
48 | SPAGAIN; |
| 41 | FREETMPS; |
49 | FREETMPS; |
| 42 | LEAVE; |
50 | LEAVE; |
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51 | } |
| 43 | } |
52 | } |
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53 | |
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54 | --in_perl; |
| 44 | } |
55 | } |
| 45 | |
56 | |
| 46 | return old_entersub (aTHX); |
57 | return old_entersub (aTHX); |
| 47 | } |
58 | } |
| 48 | |
59 | |
| … | |
… | |
| 52 | |
63 | |
| 53 | IV |
64 | IV |
| 54 | ppaddr (int optype) |
65 | ppaddr (int optype) |
| 55 | CODE: |
66 | CODE: |
| 56 | RETVAL = optype == OP_ENTERSUB |
67 | RETVAL = optype == OP_ENTERSUB |
| 57 | ? old_entersub |
68 | ? (IV)old_entersub |
| 58 | : PL_ppaddr [optype]; |
69 | : (IV)PL_ppaddr [optype]; |
| 59 | OUTPUT: |
70 | OUTPUT: |
| 60 | RETVAL |
71 | RETVAL |
| 61 | |
72 | |
| 62 | void |
73 | void |
| 63 | hook_entersub () |
74 | hook_entersub () |
| … | |
… | |
| 69 | patch_cv (B::CV cv, void *ptr) |
80 | patch_cv (B::CV cv, void *ptr) |
| 70 | CODE: |
81 | CODE: |
| 71 | { |
82 | { |
| 72 | OP *op; |
83 | OP *op; |
| 73 | |
84 | |
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85 | if (!ptr) |
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86 | croak ("NULL not allowed as code address for patch_cv"); |
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87 | |
| 74 | NewOp (0, op, 1, OP); |
88 | NewOp (0, op, 1, OP); |
| 75 | |
89 | |
| 76 | op->op_sibling = CvSTART (cv); |
90 | op->op_sibling = CvSTART (cv); |
| 77 | op->op_type = OP_NULL; |
91 | op->op_type = OP_NULL; |
| 78 | op->op_ppaddr = ptr; |
92 | op->op_ppaddr = ptr; |
| 79 | |
93 | |
| 80 | CvSTART (cv) = op; |
94 | CvSTART (cv) = op; |
| 81 | } |
95 | } |
| 82 | |
96 | |
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97 | bool |
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98 | fcntl_lock (int fd) |
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99 | CODE: |
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100 | { |
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101 | struct flock lck; |
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102 | lck.l_type = F_WRLCK; |
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103 | lck.l_whence = SEEK_SET; |
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104 | lck.l_start = 0; |
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105 | lck.l_len = 0; |
| 83 | |
106 | |
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107 | RETVAL = fcntl (fd, F_SETLKW, &lck) == 0; |
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108 | } |
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109 | OUTPUT: |
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110 | RETVAL |
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111 | |
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112 | |
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113 | |
