| 1 | #define PERL_NO_GET_CONTEXT |
1 | #define PERL_NO_GET_CONTEXT |
| 2 | |
2 | |
| 3 | #include "EXTERN.h" |
3 | #include "EXTERN.h" |
| 4 | #include "perl.h" |
4 | #include "perl.h" |
| 5 | #include "XSUB.h" |
5 | #include "XSUB.h" |
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6 | |
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7 | #include "patchlevel.h" |
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8 | |
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9 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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10 | (PERL_REVISION > (a) \ |
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11 | || (PERL_REVISION == (a) \ |
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12 | && (PERL_VERSION > (b) \ |
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13 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
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14 | |
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15 | /* apparently < 5.8.8 */ |
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16 | #ifndef SvSTASH_set |
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17 | # define SvSTASH_set(x,a) SvSTASH(x) = (a) |
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18 | #endif |
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19 | |
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20 | #ifndef PERL_MAGIC_ext |
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21 | # define PERL_MAGIC_ext '~' |
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22 | #endif |
| 6 | |
23 | |
| 7 | static HV *guard_stash; |
24 | static HV *guard_stash; |
| 8 | |
25 | |
| 9 | static SV * |
26 | static SV * |
| 10 | guard_get_cv (pTHX_ SV *cb_sv) |
27 | guard_get_cv (pTHX_ SV *cb_sv) |
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… | |
| 31 | PUSHSTACKi (PERLSI_DESTROY); |
48 | PUSHSTACKi (PERLSI_DESTROY); |
| 32 | |
49 | |
| 33 | PUSHMARK (SP); |
50 | PUSHMARK (SP); |
| 34 | PUTBACK; |
51 | PUTBACK; |
| 35 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL); |
52 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL); |
| 36 | SPAGAIN; |
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| 37 | |
53 | |
| 38 | if (SvTRUE (ERRSV)) |
54 | if (SvTRUE (ERRSV)) |
| 39 | { |
55 | { |
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56 | SPAGAIN; |
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57 | |
| 40 | PUSHMARK (SP); |
58 | PUSHMARK (SP); |
| 41 | PUTBACK; |
59 | PUTBACK; |
| 42 | call_sv (get_sv ("Guard::DIED", 1), G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
60 | call_sv (get_sv ("Guard::DIED", 1), G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
| 43 | SPAGAIN; |
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| 44 | |
61 | |
| 45 | sv_setpvn (ERRSV, "", 0); |
62 | sv_setpvn (ERRSV, "", 0); |
| 46 | } |
63 | } |
| 47 | |
64 | |
| 48 | if (saveerr) |
65 | if (saveerr) |
| … | |
… | |
| 65 | |
82 | |
| 66 | static int |
83 | static int |
| 67 | guard_free (pTHX_ SV *cv, MAGIC *mg) |
84 | guard_free (pTHX_ SV *cv, MAGIC *mg) |
| 68 | { |
85 | { |
| 69 | exec_guard_cb (aTHX_ mg->mg_obj); |
86 | exec_guard_cb (aTHX_ mg->mg_obj); |
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87 | |
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88 | return 0; |
| 70 | } |
89 | } |
| 71 | |
90 | |
| 72 | static MGVTBL guard_vtbl = { |
91 | static MGVTBL guard_vtbl = { |
| 73 | 0, 0, 0, 0, |
92 | 0, 0, 0, 0, |
| 74 | guard_free |
93 | guard_free |
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… | |
| 76 | |
95 | |
| 77 | MODULE = Guard PACKAGE = Guard |
96 | MODULE = Guard PACKAGE = Guard |
| 78 | |
97 | |
| 79 | BOOT: |
98 | BOOT: |
| 80 | guard_stash = gv_stashpv ("Guard", 1); |
99 | guard_stash = gv_stashpv ("Guard", 1); |
| 81 | |
100 | CvNODEBUG_on (get_cv ("Guard::scope_guard", 0)); /* otherwise calling scope can be the debugger */ |
| 82 | void |
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| 83 | CLONE (...) |
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| 84 | PROTOTYPE: @ |
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| 85 | CODE: |
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| 86 | guard_stash = gv_stashpv ("Guard", 1); |
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| 87 | |
101 | |
| 88 | void |
102 | void |
| 89 | scope_guard (SV *block) |
103 | scope_guard (SV *block) |
| 90 | PROTOTYPE: & |
104 | PROTOTYPE: & |
| 91 | CODE: |
105 | CODE: |
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| 96 | SV * |
110 | SV * |
| 97 | guard (SV *block) |
111 | guard (SV *block) |
| 98 | PROTOTYPE: & |
112 | PROTOTYPE: & |
| 99 | CODE: |
113 | CODE: |
| 100 | { |
114 | { |
| 101 | SV *cv = guard_get_cv (aTHX_ block); |
115 | SV *cv = guard_get_cv (aTHX_ block); |
| 102 | SV *guard = NEWSV (0, 0); |
116 | SV *guard = NEWSV (0, 0); |
| 103 | SvUPGRADE (guard, SVt_PVMG); |
117 | SvUPGRADE (guard, SVt_PVMG); |
| 104 | sv_magicext (guard, cv, PERL_MAGIC_ext, &guard_vtbl, 0, 0); |
118 | sv_magicext (guard, cv, PERL_MAGIC_ext, &guard_vtbl, 0, 0); |
| 105 | RETVAL = newRV_noinc (guard); |
119 | RETVAL = newRV_noinc (guard); |
| 106 | SvOBJECT_on (guard); |
120 | SvOBJECT_on (guard); |
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121 | #if !PERL_VERSION_ATLEAST(5,18,0) |
| 107 | ++PL_sv_objcount; |
122 | ++PL_sv_objcount; |
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123 | #endif |
| 108 | SvSTASH_set (guard, (HV*)SvREFCNT_inc ((SV *)guard_stash)); |
124 | SvSTASH_set (guard, (HV*)SvREFCNT_inc ((SV *)guard_stash)); |
| 109 | } |
125 | } |
| 110 | OUTPUT: |
126 | OUTPUT: |
| 111 | RETVAL |
127 | RETVAL |
| 112 | |
128 | |
