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1 | #define PERL_NO_GET_CONTEXT |
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2 | |
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3 | #include "libcoro/coro.c" |
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4 | |
1 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
2 | #include "perl.h" |
6 | #include "perl.h" |
3 | #include "XSUB.h" |
7 | #include "XSUB.h" |
4 | |
8 | |
5 | #include "libcoro/coro.c" |
9 | #include "patchlevel.h" |
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10 | |
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11 | #if PERL_VERSION < 6 |
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12 | # ifndef PL_ppaddr |
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13 | # define PL_ppaddr ppaddr |
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14 | # endif |
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15 | # ifndef call_sv |
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16 | # define call_sv perl_call_sv |
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17 | # endif |
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18 | # ifndef get_sv |
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19 | # define get_sv perl_get_sv |
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20 | # endif |
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21 | # ifndef get_cv |
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22 | # define get_cv perl_get_cv |
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23 | # endif |
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24 | # ifndef IS_PADGV |
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25 | # define IS_PADGV(v) 0 |
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26 | # endif |
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27 | # ifndef IS_PADCONST |
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28 | # define IS_PADCONST(v) 0 |
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29 | # endif |
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30 | #endif |
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31 | |
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32 | #include <errno.h> |
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33 | |
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34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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35 | # undef STACKGUARD |
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36 | #endif |
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37 | |
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38 | #ifndef STACKGUARD |
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39 | # define STACKGUARD 0 |
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40 | #endif |
6 | |
41 | |
7 | #ifdef HAVE_MMAP |
42 | #ifdef HAVE_MMAP |
8 | # include <unistd.h> |
43 | # include <unistd.h> |
9 | # include <sys/mman.h> |
44 | # include <sys/mman.h> |
10 | # ifndef MAP_ANON |
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11 | # ifdef MAP_ANONYMOUS |
45 | # ifndef MAP_ANONYMOUS |
12 | # define MAP_ANON MAP_ANONYMOUS |
46 | # ifdef MAP_ANON |
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47 | # define MAP_ANONYMOUS MAP_ANON |
13 | # else |
48 | # else |
14 | # undef HAVE_MMAP |
49 | # undef HAVE_MMAP |
15 | # endif |
50 | # endif |
16 | # endif |
51 | # endif |
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52 | # include <limits.h> |
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53 | # ifndef PAGESIZE |
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54 | # define PAGESIZE pagesize |
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55 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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56 | static long pagesize; |
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57 | # else |
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58 | # define BOOT_PAGESIZE |
17 | #endif |
59 | # endif |
18 | |
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19 | #define MAY_FLUSH /* increases codesize */ |
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20 | |
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21 | /* perl-related */ |
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22 | #define TRANSFER_SAVE_DEFAV 0x00000001 |
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23 | #define TRANSFER_SAVE_DEFSV 0x00000002 |
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24 | #define TRANSFER_SAVE_ERRSV 0x00000004 |
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25 | /* c-related */ |
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26 | #define TRANSFER_SAVE_CCTXT 0x00000008 |
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27 | #ifdef CORO_LAZY_STACK |
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28 | # define TRANSFER_LAZY_STACK 0x00000010 |
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29 | #else |
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30 | # define TRANSFER_LAZY_STACK 0x00000000 |
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31 | #endif |
60 | #endif |
32 | |
61 | |
33 | #define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV|TRANSFER_SAVE_DEFSV \ |
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34 | |TRANSFER_SAVE_ERRSV|TRANSFER_SAVE_CCTXT) |
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35 | |
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36 | #define SUB_INIT "Coro::State::initialize" |
62 | #define SUB_INIT "Coro::State::initialize" |
37 | #define UCORO_STATE "_coro_state" |
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38 | |
63 | |
39 | /* The next macro should delcare a variable stacklevel that contains and approximation |
64 | /* The next macro should declare a variable stacklevel that contains and approximation |
40 | * to the current C stack pointer. It's property is that it changes with each call |
65 | * to the current C stack pointer. Its property is that it changes with each call |
41 | * and should be unique. */ |
66 | * and should be unique. */ |
42 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
67 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
43 | |
68 | |
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69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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70 | |
44 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
71 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
45 | |
72 | |
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73 | #include "CoroAPI.h" |
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74 | |
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75 | #ifdef USE_ITHREADS |
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76 | static perl_mutex coro_mutex; |
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77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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79 | #else |
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80 | # define LOCK (void)0 |
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81 | # define UNLOCK (void)0 |
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82 | #endif |
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83 | |
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84 | static struct CoroAPI coroapi; |
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85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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86 | static HV *coro_state_stash, *coro_stash; |
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87 | static SV *coro_mortal; /* will be freed after next transfer */ |
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88 | |
46 | /* this is actually not only the c stack but also c registers etc... */ |
89 | /* this is actually not just the c stack but also c registers etc... */ |
47 | typedef struct { |
90 | typedef struct coro_stack { |
48 | int refcnt; /* pointer reference counter */ |
91 | struct coro_stack *next; |
49 | int usecnt; /* shared by how many coroutines */ |
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50 | int gencnt; /* generation counter */ |
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51 | |
92 | |
52 | coro_context cctx; |
93 | void *idle_sp; |
53 | |
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54 | void *sptr; |
94 | void *sptr; |
55 | long ssize; /* positive == mmap, otherwise malloc */ |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
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96 | |
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97 | /* cpu state */ |
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98 | coro_context cctx; |
56 | } coro_stack; |
99 | } coro_stack; |
57 | |
100 | |
58 | static coro_stack main_stack = { 1, 0, 0 }; |
101 | static coro_stack *main_stack; |
59 | |
102 | |
60 | struct coro { |
103 | struct coro { |
61 | /* the optional C context */ |
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62 | coro_stack *stack; |
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63 | void *cursp; |
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64 | int gencnt; |
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65 | |
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66 | /* optionally saved, might be zero */ |
104 | /* optionally saved, might be zero */ |
67 | AV *defav; |
105 | AV *defav; |
68 | SV *defsv; |
106 | SV *defsv; |
69 | SV *errsv; |
107 | SV *errsv; |
70 | |
108 | |
71 | /* saved global state not related to stacks */ |
109 | /* saved global state not related to stacks */ |
72 | U8 dowarn; |
110 | U8 dowarn; |
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111 | I32 in_eval; |
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112 | |
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113 | /* the c stack, if any */ |
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114 | coro_stack *stack; |
73 | |
115 | |
74 | /* the stacks and related info (callchain etc..) */ |
116 | /* the stacks and related info (callchain etc..) */ |
75 | PERL_SI *curstackinfo; |
117 | PERL_SI *curstackinfo; |
76 | AV *curstack; |
118 | AV *curstack; |
77 | AV *mainstack; |
119 | AV *mainstack; |
78 | SV **stack_sp; |
120 | SV **stack_sp; |
79 | OP *op; |
121 | OP *op; |
80 | SV **curpad; |
122 | SV **curpad; |
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123 | AV *comppad; |
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124 | CV *compcv; |
81 | SV **stack_base; |
125 | SV **stack_base; |
82 | SV **stack_max; |
126 | SV **stack_max; |
83 | SV **tmps_stack; |
127 | SV **tmps_stack; |
84 | I32 tmps_floor; |
128 | I32 tmps_floor; |
85 | I32 tmps_ix; |
129 | I32 tmps_ix; |
… | |
… | |
94 | I32 savestack_ix; |
138 | I32 savestack_ix; |
95 | I32 savestack_max; |
139 | I32 savestack_max; |
96 | OP **retstack; |
140 | OP **retstack; |
97 | I32 retstack_ix; |
141 | I32 retstack_ix; |
98 | I32 retstack_max; |
142 | I32 retstack_max; |
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143 | PMOP *curpm; |
99 | COP *curcop; |
144 | COP *curcop; |
100 | JMPENV start_env; |
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101 | JMPENV *top_env; |
145 | JMPENV *top_env; |
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146 | |
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147 | /* coro process data */ |
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148 | int prio; |
102 | |
149 | |
103 | /* data associated with this coroutine (initial args) */ |
150 | /* data associated with this coroutine (initial args) */ |
104 | AV *args; |
151 | AV *args; |
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152 | int refcnt; |
105 | }; |
153 | }; |
106 | |
154 | |
107 | typedef struct coro *Coro__State; |
155 | typedef struct coro *Coro__State; |
108 | typedef struct coro *Coro__State_or_hashref; |
156 | typedef struct coro *Coro__State_or_hashref; |
109 | |
157 | |
110 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
158 | static AV * |
111 | static HV *coro_state_stash; |
159 | coro_clone_padlist (pTHX_ CV *cv) |
112 | static SV *ucoro_state_sv; |
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113 | static U32 ucoro_state_hash; |
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114 | static HV *padlist_cache; |
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115 | |
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116 | /* mostly copied from op.c:cv_clone2 */ |
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117 | STATIC AV * |
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118 | clone_padlist (AV *protopadlist) |
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119 | { |
160 | { |
120 | AV *av; |
161 | AV *padlist = CvPADLIST (cv); |
121 | I32 ix; |
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122 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
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123 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
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124 | SV **pname = AvARRAY (protopad_name); |
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125 | SV **ppad = AvARRAY (protopad); |
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126 | I32 fname = AvFILLp (protopad_name); |
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127 | I32 fpad = AvFILLp (protopad); |
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128 | AV *newpadlist, *newpad_name, *newpad; |
162 | AV *newpadlist, *newpad; |
129 | SV **npad; |
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130 | |
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131 | newpad_name = newAV (); |
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132 | for (ix = fname; ix >= 0; ix--) |
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133 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
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134 | |
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135 | newpad = newAV (); |
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136 | av_fill (newpad, AvFILLp (protopad)); |
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137 | npad = AvARRAY (newpad); |
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138 | |
163 | |
139 | newpadlist = newAV (); |
164 | newpadlist = newAV (); |
140 | AvREAL_off (newpadlist); |
165 | AvREAL_off (newpadlist); |
141 | av_store (newpadlist, 0, (SV *) newpad_name); |
166 | #if PERL_VERSION < 9 |
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167 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
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168 | #else |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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170 | #endif |
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171 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
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172 | --AvFILLp (padlist); |
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173 | |
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174 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
142 | av_store (newpadlist, 1, (SV *) newpad); |
175 | av_store (newpadlist, 1, (SV *)newpad); |
143 | |
176 | |
144 | av = newAV (); /* will be @_ */ |
177 | return newpadlist; |
145 | av_extend (av, 0); |
178 | } |
146 | av_store (newpad, 0, (SV *) av); |
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147 | AvFLAGS (av) = AVf_REIFY; |
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148 | |
179 | |
149 | for (ix = fpad; ix > 0; ix--) |
180 | static void |
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181 | free_padlist (pTHX_ AV *padlist) |
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182 | { |
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183 | /* may be during global destruction */ |
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184 | if (SvREFCNT (padlist)) |
150 | { |
185 | { |
151 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
186 | I32 i = AvFILLp (padlist); |
152 | if (namesv && namesv != &PL_sv_undef) |
187 | while (i >= 0) |
153 | { |
188 | { |
154 | char *name = SvPVX (namesv); /* XXX */ |
189 | SV **svp = av_fetch (padlist, i--, FALSE); |
155 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
190 | if (svp) |
156 | { /* lexical from outside? */ |
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157 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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158 | } |
191 | { |
159 | else |
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160 | { /* our own lexical */ |
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161 | SV *sv; |
192 | SV *sv; |
162 | if (*name == '&') |
193 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
163 | sv = SvREFCNT_inc (ppad[ix]); |
194 | SvREFCNT_dec (sv); |
164 | else if (*name == '@') |
195 | |
165 | sv = (SV *) newAV (); |
196 | SvREFCNT_dec (*svp); |
166 | else if (*name == '%') |
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167 | sv = (SV *) newHV (); |
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168 | else |
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169 | sv = NEWSV (0, 0); |
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170 | if (!SvPADBUSY (sv)) |
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171 | SvPADMY_on (sv); |
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172 | npad[ix] = sv; |
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173 | } |
197 | } |
174 | } |
198 | } |
175 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
199 | |
176 | { |
200 | SvREFCNT_dec ((SV*)padlist); |
177 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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178 | } |
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179 | else |
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180 | { |
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181 | SV *sv = NEWSV (0, 0); |
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182 | SvPADTMP_on (sv); |
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183 | npad[ix] = sv; |
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184 | } |
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185 | } |
201 | } |
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202 | } |
186 | |
203 | |
187 | #if 0 /* return -ENOTUNDERSTOOD */ |
204 | static int |
188 | /* Now that vars are all in place, clone nested closures. */ |
205 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
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206 | { |
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207 | AV *padlist; |
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208 | AV *av = (AV *)mg->mg_obj; |
189 | |
209 | |
190 | for (ix = fpad; ix > 0; ix--) { |
210 | /* casting is fun. */ |
191 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
211 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
192 | if (namesv |
212 | free_padlist (aTHX_ padlist); |
193 | && namesv != &PL_sv_undef |
213 | |
194 | && !(SvFLAGS(namesv) & SVf_FAKE) |
214 | SvREFCNT_dec (av); |
195 | && *SvPVX(namesv) == '&' |
215 | |
196 | && CvCLONE(ppad[ix])) |
216 | return 0; |
197 | { |
217 | } |
198 | CV *kid = cv_clone((CV*)ppad[ix]); |
218 | |
199 | SvREFCNT_dec(ppad[ix]); |
219 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
200 | CvCLONE_on(kid); |
220 | |
201 | SvPADMY_on(kid); |
221 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
202 | npad[ix] = (SV*)kid; |
222 | |
203 | } |
223 | /* the next two functions merely cache the padlists */ |
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224 | static void |
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225 | get_padlist (pTHX_ CV *cv) |
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226 | { |
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227 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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228 | |
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229 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
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230 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
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231 | else |
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232 | { |
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233 | #if 0 |
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234 | /* this should work - but it doesn't :( */ |
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235 | CV *cp = Perl_cv_clone (aTHX_ cv); |
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236 | CvPADLIST (cv) = CvPADLIST (cp); |
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237 | CvPADLIST (cp) = 0; |
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238 | SvREFCNT_dec (cp); |
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239 | #else |
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240 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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241 | #endif |
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242 | } |
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243 | } |
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244 | |
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245 | static void |
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246 | put_padlist (pTHX_ CV *cv) |
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247 | { |
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248 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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249 | |
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250 | if (!mg) |
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251 | { |
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252 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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253 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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254 | mg->mg_virtual = &vtbl_coro; |
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255 | mg->mg_obj = (SV *)newAV (); |
204 | } |
256 | } |
205 | #endif |
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206 | |
257 | |
207 | return newpadlist; |
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208 | } |
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209 | |
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210 | #ifdef MAY_FLUSH |
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211 | STATIC AV * |
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212 | free_padlist (AV *padlist) |
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213 | { |
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214 | /* may be during global destruction */ |
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215 | if (SvREFCNT(padlist)) |
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216 | { |
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217 | I32 i = AvFILLp(padlist); |
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218 | while (i >= 0) |
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219 | { |
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220 | SV **svp = av_fetch(padlist, i--, FALSE); |
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221 | SV *sv = svp ? *svp : Nullsv; |
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222 | if (sv) |
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223 | SvREFCNT_dec(sv); |
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224 | } |
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225 | |
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226 | SvREFCNT_dec((SV*)padlist); |
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227 | } |
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228 | } |
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229 | #endif |
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230 | |
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231 | /* the next two functions merely cache the padlists */ |
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232 | STATIC void |
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233 | get_padlist (CV *cv) |
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234 | { |
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235 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); |
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236 | |
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237 | if (he && AvFILLp ((AV *)*he) >= 0) |
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238 | CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); |
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239 | else |
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240 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
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241 | } |
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242 | |
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243 | STATIC void |
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244 | put_padlist (CV *cv) |
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245 | { |
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246 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); |
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247 | |
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248 | if (SvTYPE (*he) != SVt_PVAV) |
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249 | { |
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250 | SvREFCNT_dec (*he); |
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251 | *he = (SV *)newAV (); |
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252 | } |
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253 | |
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254 | av_push ((AV *)*he, (SV *)CvPADLIST (cv)); |
258 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
255 | } |
259 | } |
256 | |
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257 | #ifdef MAY_FLUSH |
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258 | STATIC void |
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259 | flush_padlist_cache () |
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260 | { |
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261 | HV *hv = padlist_cache; |
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262 | padlist_cache = newHV (); |
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263 | |
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264 | if (hv_iterinit (hv)) |
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265 | { |
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266 | HE *he; |
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267 | AV *padlist; |
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268 | |
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269 | while (!!(he = hv_iternext (hv))) |
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270 | { |
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271 | AV *av = (AV *)HeVAL(he); |
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272 | |
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273 | /* casting is fun. */ |
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274 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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275 | free_padlist (padlist); |
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276 | } |
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277 | } |
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278 | |
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279 | SvREFCNT_dec (hv); |
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280 | } |
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281 | #endif |
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282 | |
260 | |
283 | #define SB do { |
261 | #define SB do { |
284 | #define SE } while (0) |
262 | #define SE } while (0) |
285 | |
263 | |
286 | #define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE |
264 | #define LOAD(state) load_state(aTHX_ (state)); |
287 | #define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE |
265 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
288 | |
266 | |
289 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
267 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
290 | |
268 | |
291 | static void |
269 | static void |
292 | load_state(pTHX_ Coro__State c) |
270 | load_state(pTHX_ Coro__State c) |
293 | { |
271 | { |
294 | PL_dowarn = c->dowarn; |
272 | PL_dowarn = c->dowarn; |
|
|
273 | PL_in_eval = c->in_eval; |
295 | |
274 | |
296 | PL_curstackinfo = c->curstackinfo; |
275 | PL_curstackinfo = c->curstackinfo; |
297 | PL_curstack = c->curstack; |
276 | PL_curstack = c->curstack; |
298 | PL_mainstack = c->mainstack; |
277 | PL_mainstack = c->mainstack; |
299 | PL_stack_sp = c->stack_sp; |
278 | PL_stack_sp = c->stack_sp; |
300 | PL_op = c->op; |
279 | PL_op = c->op; |
301 | PL_curpad = c->curpad; |
280 | PL_curpad = c->curpad; |
|
|
281 | PL_comppad = c->comppad; |
|
|
282 | PL_compcv = c->compcv; |
302 | PL_stack_base = c->stack_base; |
283 | PL_stack_base = c->stack_base; |
303 | PL_stack_max = c->stack_max; |
284 | PL_stack_max = c->stack_max; |
304 | PL_tmps_stack = c->tmps_stack; |
285 | PL_tmps_stack = c->tmps_stack; |
305 | PL_tmps_floor = c->tmps_floor; |
286 | PL_tmps_floor = c->tmps_floor; |
306 | PL_tmps_ix = c->tmps_ix; |
287 | PL_tmps_ix = c->tmps_ix; |
… | |
… | |
312 | PL_scopestack_ix = c->scopestack_ix; |
293 | PL_scopestack_ix = c->scopestack_ix; |
313 | PL_scopestack_max = c->scopestack_max; |
294 | PL_scopestack_max = c->scopestack_max; |
314 | PL_savestack = c->savestack; |
295 | PL_savestack = c->savestack; |
315 | PL_savestack_ix = c->savestack_ix; |
296 | PL_savestack_ix = c->savestack_ix; |
316 | PL_savestack_max = c->savestack_max; |
297 | PL_savestack_max = c->savestack_max; |
|
|
298 | #if PERL_VERSION < 9 |
317 | PL_retstack = c->retstack; |
299 | PL_retstack = c->retstack; |
318 | PL_retstack_ix = c->retstack_ix; |
300 | PL_retstack_ix = c->retstack_ix; |
319 | PL_retstack_max = c->retstack_max; |
301 | PL_retstack_max = c->retstack_max; |
|
|
302 | #endif |
|
|
303 | PL_curpm = c->curpm; |
320 | PL_curcop = c->curcop; |
304 | PL_curcop = c->curcop; |
321 | PL_start_env = c->start_env; |
|
|
322 | PL_top_env = c->top_env; |
305 | PL_top_env = c->top_env; |
323 | |
306 | |
324 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
307 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
325 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
308 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
326 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
309 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
… | |
… | |
334 | { |
317 | { |
335 | AV *padlist = (AV *)POPs; |
318 | AV *padlist = (AV *)POPs; |
336 | |
319 | |
337 | if (padlist) |
320 | if (padlist) |
338 | { |
321 | { |
339 | put_padlist (cv); /* mark this padlist as available */ |
322 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
340 | CvPADLIST(cv) = padlist; |
323 | CvPADLIST(cv) = padlist; |
341 | #ifdef USE_THREADS |
|
|
342 | /*CvOWNER(cv) = (struct perl_thread *)POPs;*/ |
|
|
343 | #endif |
|
|
344 | } |
324 | } |
345 | |
325 | |
346 | ++CvDEPTH(cv); |
326 | ++CvDEPTH(cv); |
347 | } |
327 | } |
348 | |
328 | |
… | |
… | |
366 | |
346 | |
367 | PUSHs (Nullsv); |
347 | PUSHs (Nullsv); |
368 | /* this loop was inspired by pp_caller */ |
348 | /* this loop was inspired by pp_caller */ |
369 | for (;;) |
349 | for (;;) |
370 | { |
350 | { |
371 | do |
351 | while (cxix >= 0) |
372 | { |
352 | { |
373 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
353 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
374 | |
354 | |
375 | if (CxTYPE(cx) == CXt_SUB) |
355 | if (CxTYPE(cx) == CXt_SUB) |
376 | { |
356 | { |
377 | CV *cv = cx->blk_sub.cv; |
357 | CV *cv = cx->blk_sub.cv; |
378 | if (CvDEPTH(cv)) |
358 | if (CvDEPTH(cv)) |
379 | { |
359 | { |
380 | #ifdef USE_THREADS |
|
|
381 | /*XPUSHs ((SV *)CvOWNER(cv));*/ |
|
|
382 | /*CvOWNER(cv) = 0;*/ |
|
|
383 | /*error must unlock this cv etc.. etc...*/ |
|
|
384 | #endif |
|
|
385 | EXTEND (SP, CvDEPTH(cv)*2); |
360 | EXTEND (SP, CvDEPTH(cv)*2); |
386 | |
361 | |
387 | while (--CvDEPTH(cv)) |
362 | while (--CvDEPTH(cv)) |
388 | { |
363 | { |
389 | /* this tells the restore code to increment CvDEPTH */ |
364 | /* this tells the restore code to increment CvDEPTH */ |
… | |
… | |
392 | } |
367 | } |
393 | |
368 | |
394 | PUSHs ((SV *)CvPADLIST(cv)); |
369 | PUSHs ((SV *)CvPADLIST(cv)); |
395 | PUSHs ((SV *)cv); |
370 | PUSHs ((SV *)cv); |
396 | |
371 | |
397 | get_padlist (cv); /* this is a monster */ |
372 | get_padlist (aTHX_ cv); |
398 | } |
373 | } |
399 | } |
374 | } |
|
|
375 | #ifdef CXt_FORMAT |
400 | else if (CxTYPE(cx) == CXt_FORMAT) |
376 | else if (CxTYPE(cx) == CXt_FORMAT) |
401 | { |
377 | { |
402 | /* I never used formats, so how should I know how these are implemented? */ |
378 | /* I never used formats, so how should I know how these are implemented? */ |
403 | /* my bold guess is as a simple, plain sub... */ |
379 | /* my bold guess is as a simple, plain sub... */ |
404 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
380 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
405 | } |
381 | } |
|
|
382 | #endif |
406 | } |
383 | } |
407 | while (cxix >= 0); |
|
|
408 | |
384 | |
409 | if (top_si->si_type == PERLSI_MAIN) |
385 | if (top_si->si_type == PERLSI_MAIN) |
410 | break; |
386 | break; |
411 | |
387 | |
412 | top_si = top_si->si_prev; |
388 | top_si = top_si->si_prev; |
… | |
… | |
419 | |
395 | |
420 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
396 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
421 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
397 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
422 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
398 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
423 | |
399 | |
424 | /* I have not the slightest idea of why av_reify is necessary */ |
|
|
425 | /* but if it's missing the defav contents magically get replaced sometimes */ |
|
|
426 | if (c->defav) |
|
|
427 | av_reify (c->defav); |
|
|
428 | |
|
|
429 | c->dowarn = PL_dowarn; |
400 | c->dowarn = PL_dowarn; |
|
|
401 | c->in_eval = PL_in_eval; |
430 | |
402 | |
431 | c->curstackinfo = PL_curstackinfo; |
403 | c->curstackinfo = PL_curstackinfo; |
432 | c->curstack = PL_curstack; |
404 | c->curstack = PL_curstack; |
433 | c->mainstack = PL_mainstack; |
405 | c->mainstack = PL_mainstack; |
434 | c->stack_sp = PL_stack_sp; |
406 | c->stack_sp = PL_stack_sp; |
435 | c->op = PL_op; |
407 | c->op = PL_op; |
436 | c->curpad = PL_curpad; |
408 | c->curpad = PL_curpad; |
|
|
409 | c->comppad = PL_comppad; |
|
|
410 | c->compcv = PL_compcv; |
437 | c->stack_base = PL_stack_base; |
411 | c->stack_base = PL_stack_base; |
438 | c->stack_max = PL_stack_max; |
412 | c->stack_max = PL_stack_max; |
439 | c->tmps_stack = PL_tmps_stack; |
413 | c->tmps_stack = PL_tmps_stack; |
440 | c->tmps_floor = PL_tmps_floor; |
414 | c->tmps_floor = PL_tmps_floor; |
441 | c->tmps_ix = PL_tmps_ix; |
415 | c->tmps_ix = PL_tmps_ix; |
… | |
… | |
447 | c->scopestack_ix = PL_scopestack_ix; |
421 | c->scopestack_ix = PL_scopestack_ix; |
448 | c->scopestack_max = PL_scopestack_max; |
422 | c->scopestack_max = PL_scopestack_max; |
449 | c->savestack = PL_savestack; |
423 | c->savestack = PL_savestack; |
450 | c->savestack_ix = PL_savestack_ix; |
424 | c->savestack_ix = PL_savestack_ix; |
451 | c->savestack_max = PL_savestack_max; |
425 | c->savestack_max = PL_savestack_max; |
|
|
426 | #if PERL_VERSION < 9 |
452 | c->retstack = PL_retstack; |
427 | c->retstack = PL_retstack; |
453 | c->retstack_ix = PL_retstack_ix; |
428 | c->retstack_ix = PL_retstack_ix; |
454 | c->retstack_max = PL_retstack_max; |
429 | c->retstack_max = PL_retstack_max; |
|
|
430 | #endif |
|
|
431 | c->curpm = PL_curpm; |
455 | c->curcop = PL_curcop; |
432 | c->curcop = PL_curcop; |
456 | c->start_env = PL_start_env; |
|
|
457 | c->top_env = PL_top_env; |
433 | c->top_env = PL_top_env; |
458 | } |
434 | } |
459 | |
435 | |
460 | /* |
436 | /* |
461 | * allocate various perl stacks. This is an exact copy |
437 | * allocate various perl stacks. This is an exact copy |
462 | * of perl.c:init_stacks, except that it uses less memory |
438 | * of perl.c:init_stacks, except that it uses less memory |
463 | * on the assumption that coroutines do not usually need |
439 | * on the (sometimes correct) assumption that coroutines do |
464 | * a lot of stackspace. |
440 | * not usually need a lot of stackspace. |
465 | */ |
441 | */ |
466 | STATIC void |
442 | static void |
467 | coro_init_stacks (pTHX) |
443 | coro_init_stacks (pTHX) |
468 | { |
444 | { |
|
|
445 | LOCK; |
|
|
446 | |
469 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
447 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
470 | PL_curstackinfo->si_type = PERLSI_MAIN; |
448 | PL_curstackinfo->si_type = PERLSI_MAIN; |
471 | PL_curstack = PL_curstackinfo->si_stack; |
449 | PL_curstack = PL_curstackinfo->si_stack; |
472 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
450 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
473 | |
451 | |
… | |
… | |
482 | |
460 | |
483 | New(54,PL_markstack,16,I32); |
461 | New(54,PL_markstack,16,I32); |
484 | PL_markstack_ptr = PL_markstack; |
462 | PL_markstack_ptr = PL_markstack; |
485 | PL_markstack_max = PL_markstack + 16; |
463 | PL_markstack_max = PL_markstack + 16; |
486 | |
464 | |
|
|
465 | #ifdef SET_MARK_OFFSET |
487 | SET_MARK_OFFSET; |
466 | SET_MARK_OFFSET; |
|
|
467 | #endif |
488 | |
468 | |
489 | New(54,PL_scopestack,16,I32); |
469 | New(54,PL_scopestack,16,I32); |
490 | PL_scopestack_ix = 0; |
470 | PL_scopestack_ix = 0; |
491 | PL_scopestack_max = 16; |
471 | PL_scopestack_max = 16; |
492 | |
472 | |
493 | New(54,PL_savestack,96,ANY); |
473 | New(54,PL_savestack,96,ANY); |
494 | PL_savestack_ix = 0; |
474 | PL_savestack_ix = 0; |
495 | PL_savestack_max = 96; |
475 | PL_savestack_max = 96; |
496 | |
476 | |
|
|
477 | #if PERL_VERSION < 9 |
497 | New(54,PL_retstack,8,OP*); |
478 | New(54,PL_retstack,8,OP*); |
498 | PL_retstack_ix = 0; |
479 | PL_retstack_ix = 0; |
499 | PL_retstack_max = 8; |
480 | PL_retstack_max = 8; |
|
|
481 | #endif |
|
|
482 | |
|
|
483 | UNLOCK; |
500 | } |
484 | } |
501 | |
485 | |
502 | /* |
486 | /* |
503 | * destroy the stacks, the callchain etc... |
487 | * destroy the stacks, the callchain etc... |
504 | * still there is a memleak of 128 bytes... |
|
|
505 | */ |
488 | */ |
506 | STATIC void |
489 | static void |
507 | destroy_stacks(pTHX) |
490 | destroy_stacks(pTHX) |
508 | { |
491 | { |
|
|
492 | if (!IN_DESTRUCT) |
|
|
493 | { |
509 | /* is this ugly, I ask? */ |
494 | /* is this ugly, I ask? */ |
510 | while (PL_scopestack_ix) |
495 | LEAVE_SCOPE (0); |
511 | LEAVE; |
|
|
512 | |
496 | |
513 | /* sure it is, but more important: is it correct?? :/ */ |
497 | /* sure it is, but more important: is it correct?? :/ */ |
514 | while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ |
|
|
515 | FREETMPS; |
498 | FREETMPS; |
|
|
499 | |
|
|
500 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
501 | } |
516 | |
502 | |
517 | while (PL_curstackinfo->si_next) |
503 | while (PL_curstackinfo->si_next) |
518 | PL_curstackinfo = PL_curstackinfo->si_next; |
504 | PL_curstackinfo = PL_curstackinfo->si_next; |
519 | |
505 | |
520 | while (PL_curstackinfo) |
506 | while (PL_curstackinfo) |
521 | { |
507 | { |
522 | PERL_SI *p = PL_curstackinfo->si_prev; |
508 | PERL_SI *p = PL_curstackinfo->si_prev; |
523 | |
509 | |
524 | { |
510 | { /*D*//*remove*/ |
525 | dSP; |
511 | dSP; |
526 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
512 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
527 | PUTBACK; /* possibly superfluous */ |
513 | PUTBACK; /* possibly superfluous */ |
528 | } |
514 | } |
529 | |
515 | |
530 | dounwind(-1); |
516 | if (!IN_DESTRUCT) |
531 | |
517 | { |
|
|
518 | dounwind (-1);/*D*//*remove*/ |
532 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
519 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
|
|
520 | } |
|
|
521 | |
533 | Safefree(PL_curstackinfo->si_cxstack); |
522 | Safefree (PL_curstackinfo->si_cxstack); |
534 | Safefree(PL_curstackinfo); |
523 | Safefree (PL_curstackinfo); |
535 | PL_curstackinfo = p; |
524 | PL_curstackinfo = p; |
536 | } |
525 | } |
537 | |
526 | |
538 | Safefree(PL_tmps_stack); |
527 | Safefree (PL_tmps_stack); |
539 | Safefree(PL_markstack); |
528 | Safefree (PL_markstack); |
540 | Safefree(PL_scopestack); |
529 | Safefree (PL_scopestack); |
541 | Safefree(PL_savestack); |
530 | Safefree (PL_savestack); |
|
|
531 | #if PERL_VERSION < 9 |
542 | Safefree(PL_retstack); |
532 | Safefree (PL_retstack); |
543 | } |
|
|
544 | |
|
|
545 | static void |
|
|
546 | allocate_stack (Coro__State ctx, int alloc) |
|
|
547 | { |
|
|
548 | coro_stack *stack; |
|
|
549 | |
|
|
550 | New (0, stack, 1, coro_stack); |
|
|
551 | |
|
|
552 | stack->refcnt = 1; |
|
|
553 | stack->usecnt = 1; |
|
|
554 | stack->gencnt = ctx->gencnt = 0; |
|
|
555 | if (alloc) |
|
|
556 | { |
|
|
557 | #ifdef HAVE_MMAP |
|
|
558 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write */ |
|
|
559 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); |
|
|
560 | if (stack->sptr == (void *)-1) |
|
|
561 | #endif |
533 | #endif |
562 | { |
|
|
563 | /*FIXME*//*D*//* reasonable stack size! */ |
|
|
564 | stack->ssize = -4096 * sizeof (long); |
|
|
565 | New (0, stack->sptr, 4096, long); |
|
|
566 | } |
|
|
567 | } |
|
|
568 | else |
|
|
569 | stack->sptr = 0; |
|
|
570 | |
|
|
571 | ctx->stack = stack; |
|
|
572 | } |
534 | } |
573 | |
535 | |
574 | static void |
536 | static void |
575 | deallocate_stack (Coro__State ctx) |
537 | setup_coro (struct coro *coro) |
576 | { |
|
|
577 | coro_stack *stack = ctx->stack; |
|
|
578 | |
|
|
579 | ctx->stack = 0; |
|
|
580 | |
|
|
581 | if (stack) |
|
|
582 | { |
|
|
583 | if (!--stack->refcnt) |
|
|
584 | { |
|
|
585 | #ifdef HAVE_MMAP |
|
|
586 | if (stack->ssize > 0 && stack->sptr) |
|
|
587 | munmap (stack->sptr, stack->ssize); |
|
|
588 | else |
|
|
589 | #else |
|
|
590 | Safefree (stack->sptr); |
|
|
591 | #endif |
|
|
592 | Safefree (stack); |
|
|
593 | } |
|
|
594 | else if (ctx->gencnt == stack->gencnt) |
|
|
595 | --stack->usecnt; |
|
|
596 | } |
|
|
597 | } |
|
|
598 | |
|
|
599 | static void |
|
|
600 | setup_coro (void *arg) |
|
|
601 | { |
538 | { |
602 | /* |
539 | /* |
603 | * emulate part of the perl startup here. |
540 | * emulate part of the perl startup here. |
604 | */ |
541 | */ |
|
|
542 | dTHX; |
605 | dSP; |
543 | dSP; |
606 | Coro__State ctx = (Coro__State)arg; |
544 | UNOP myop; |
607 | SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); |
545 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
608 | |
546 | |
609 | coro_init_stacks (aTHX); |
547 | coro_init_stacks (aTHX); |
610 | JMPENV_BOOTSTRAP; |
548 | /*PL_curcop = 0;*/ |
|
|
549 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
550 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
551 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
552 | |
611 | SPAGAIN; |
553 | SPAGAIN; |
612 | |
554 | |
613 | /*PL_curcop = 0;*/ |
555 | Zero (&myop, 1, UNOP); |
614 | SvREFCNT_dec (GvAV (PL_defgv)); |
556 | myop.op_next = Nullop; |
615 | GvAV (PL_defgv) = ctx->args; |
557 | myop.op_flags = OPf_WANT_VOID; |
616 | |
558 | |
617 | if (ctx->stack) |
559 | PL_op = (OP *)&myop; |
618 | { |
|
|
619 | ctx->cursp = 0; |
|
|
620 | |
560 | |
621 | PUSHMARK(SP); |
561 | PUSHMARK(SP); |
|
|
562 | XPUSHs (sub_init); |
622 | PUTBACK; |
563 | PUTBACK; |
623 | (void) call_sv (sub_init, G_VOID|G_NOARGS); |
564 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
624 | croak ("FATAL: CCTXT coroutine returned!"); |
565 | SPAGAIN; |
|
|
566 | |
|
|
567 | ENTER; /* necessary e.g. for dounwind */ |
|
|
568 | } |
|
|
569 | |
|
|
570 | static void |
|
|
571 | transfer_tail () |
|
|
572 | { |
|
|
573 | if (coro_mortal) |
|
|
574 | { |
|
|
575 | SvREFCNT_dec (coro_mortal); |
|
|
576 | coro_mortal = 0; |
625 | } |
577 | } |
626 | else |
|
|
627 | { |
|
|
628 | UNOP myop; |
|
|
629 | |
578 | |
630 | PL_op = (OP *)&myop; |
579 | UNLOCK; |
631 | |
|
|
632 | Zero(&myop, 1, UNOP); |
|
|
633 | myop.op_next = Nullop; |
|
|
634 | myop.op_flags = OPf_WANT_VOID; |
|
|
635 | |
|
|
636 | PUSHMARK(SP); |
|
|
637 | XPUSHs (sub_init); |
|
|
638 | /* |
|
|
639 | * the next line is slightly wrong, as PL_op->op_next |
|
|
640 | * is actually being executed so we skip the first op. |
|
|
641 | * that doesn't matter, though, since it is only |
|
|
642 | * pp_nextstate and we never return... |
|
|
643 | * ah yes, and I don't care anyways ;) |
|
|
644 | */ |
|
|
645 | PUTBACK; |
|
|
646 | PL_op = pp_entersub(); |
|
|
647 | SPAGAIN; |
|
|
648 | |
|
|
649 | ENTER; /* necessary e.g. for dounwind */ |
|
|
650 | } |
|
|
651 | } |
580 | } |
652 | |
581 | |
653 | static void |
582 | static void |
654 | continue_coro (void *arg) |
583 | coro_run (void *arg) |
655 | { |
584 | { |
656 | /* |
585 | /* |
657 | * this is a _very_ stripped down perl interpreter ;) |
586 | * this is a _very_ stripped down perl interpreter ;) |
658 | */ |
587 | */ |
659 | Coro__State ctx = (Coro__State)arg; |
588 | dTHX; |
660 | |
589 | |
661 | ctx->cursp = 0; |
590 | transfer_tail (); |
662 | PL_op = PL_op->op_next; |
591 | |
663 | CALLRUNOPS(aTHX); |
592 | PL_top_env = &PL_start_env; |
664 | /*NORETURN*/ |
593 | PL_restartop = PL_op; |
|
|
594 | /* somebody will hit me for both perl_run and PL_restart_top */ |
|
|
595 | perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
596 | |
665 | abort (); |
597 | abort (); |
666 | } |
598 | } |
667 | |
599 | |
668 | STATIC void |
600 | static coro_stack * |
|
|
601 | stack_new () |
|
|
602 | { |
|
|
603 | coro_stack *stack; |
|
|
604 | |
|
|
605 | New (0, stack, 1, coro_stack); |
|
|
606 | |
|
|
607 | #if HAVE_MMAP |
|
|
608 | |
|
|
609 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
|
|
610 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
611 | |
|
|
612 | if (stack->sptr == (void *)-1) |
|
|
613 | { |
|
|
614 | fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); |
|
|
615 | _exit (EXIT_FAILURE); |
|
|
616 | } |
|
|
617 | |
|
|
618 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
619 | |
|
|
620 | #else |
|
|
621 | |
|
|
622 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
623 | New (0, stack->sptr, STACKSIZE, long); |
|
|
624 | |
|
|
625 | if (!stack->sptr) |
|
|
626 | { |
|
|
627 | fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); |
|
|
628 | _exit (EXIT_FAILURE); |
|
|
629 | } |
|
|
630 | |
|
|
631 | #endif |
|
|
632 | |
|
|
633 | coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); |
|
|
634 | |
|
|
635 | return stack; |
|
|
636 | } |
|
|
637 | |
|
|
638 | static void |
|
|
639 | stack_free (coro_stack *stack) |
|
|
640 | { |
|
|
641 | if (!stack || stack == main_stack) |
|
|
642 | return; |
|
|
643 | |
|
|
644 | #if HAVE_MMAP |
|
|
645 | munmap (stack->sptr, stack->ssize); |
|
|
646 | #else |
|
|
647 | Safefree (stack->sptr); |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | Safefree (stack); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static coro_stack *stack_first; |
|
|
654 | |
|
|
655 | static coro_stack * |
|
|
656 | stack_get () |
|
|
657 | { |
|
|
658 | coro_stack *stack; |
|
|
659 | |
|
|
660 | if (stack_first) |
|
|
661 | { |
|
|
662 | stack = stack_first; |
|
|
663 | stack_first = stack->next; |
|
|
664 | } |
|
|
665 | else |
|
|
666 | { |
|
|
667 | stack = stack_new (); |
|
|
668 | PL_op = PL_op->op_next; |
|
|
669 | } |
|
|
670 | |
|
|
671 | return stack; |
|
|
672 | } |
|
|
673 | |
|
|
674 | static void |
|
|
675 | stack_put (coro_stack *stack) |
|
|
676 | { |
|
|
677 | stack->next = stack_first; |
|
|
678 | stack_first = stack; |
|
|
679 | } |
|
|
680 | |
|
|
681 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
682 | static void |
669 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
683 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
670 | { |
684 | { |
671 | dSP; |
|
|
672 | dSTACKLEVEL; |
685 | dSTACKLEVEL; |
673 | |
686 | |
|
|
687 | /* sometimes transfer is only called to set idle_sp */ |
|
|
688 | if (!prev->stack->idle_sp) |
|
|
689 | prev->stack->idle_sp = stacklevel; |
|
|
690 | |
|
|
691 | LOCK; |
|
|
692 | |
674 | if (prev != next) |
693 | if (prev != next) |
675 | { |
694 | { |
|
|
695 | coro_stack *prev_stack = prev->stack; |
|
|
696 | |
|
|
697 | /* possibly "free" the stack */ |
|
|
698 | if (0 && prev_stack->idle_sp == stacklevel) |
|
|
699 | { |
|
|
700 | stack_put (prev_stack); |
|
|
701 | prev->stack = 0; |
|
|
702 | } |
|
|
703 | |
676 | if (next->mainstack) |
704 | if (next->mainstack) |
677 | { |
705 | { |
|
|
706 | /* coroutine already started */ |
678 | SAVE (prev, flags); |
707 | SAVE (prev, flags); |
679 | LOAD (next); |
708 | LOAD (next); |
680 | |
|
|
681 | /* mark this state as in-use */ |
|
|
682 | next->mainstack = 0; |
|
|
683 | next->tmps_ix = -2; |
|
|
684 | |
|
|
685 | /* stacklevel changed? if yes, grab the stack for us! */ |
|
|
686 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
687 | { |
|
|
688 | if (!prev->stack) |
|
|
689 | allocate_stack (prev, 0); |
|
|
690 | else if (prev->cursp != stacklevel |
|
|
691 | && prev->stack->usecnt > 1) |
|
|
692 | { |
|
|
693 | prev->gencnt = ++prev->stack->gencnt; |
|
|
694 | prev->stack->usecnt = 1; |
|
|
695 | } |
|
|
696 | |
|
|
697 | /* has our stack been invalidated? */ |
|
|
698 | if (next->stack && next->stack->gencnt != next->gencnt) |
|
|
699 | { |
|
|
700 | deallocate_stack (next); |
|
|
701 | allocate_stack (next, 1); |
|
|
702 | coro_create (&(next->stack->cctx), |
|
|
703 | continue_coro, (void *)next, |
|
|
704 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
705 | } |
|
|
706 | |
|
|
707 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
708 | } |
|
|
709 | |
|
|
710 | } |
709 | } |
711 | else if (next->tmps_ix == -2) |
|
|
712 | croak ("tried to transfer to running coroutine"); |
|
|
713 | else |
710 | else |
714 | { |
711 | { |
|
|
712 | /* need to start coroutine */ |
715 | SAVE (prev, -1); /* first get rid of the old state */ |
713 | /* first get rid of the old state */ |
716 | |
714 | SAVE (prev, -1); |
717 | if (flags & TRANSFER_SAVE_CCTXT) |
715 | /* setup coroutine call */ |
718 | { |
|
|
719 | if (!prev->stack) |
|
|
720 | allocate_stack (prev, 0); |
|
|
721 | |
|
|
722 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
|
|
723 | { |
|
|
724 | setup_coro (next); |
|
|
725 | |
|
|
726 | prev->stack->refcnt++; |
|
|
727 | prev->stack->usecnt++; |
|
|
728 | next->stack = prev->stack; |
|
|
729 | next->gencnt = prev->gencnt; |
|
|
730 | } |
|
|
731 | else |
|
|
732 | { |
|
|
733 | allocate_stack (next, 1); |
|
|
734 | coro_create (&(next->stack->cctx), |
|
|
735 | setup_coro, (void *)next, |
|
|
736 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
737 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
738 | } |
|
|
739 | } |
|
|
740 | else |
|
|
741 | setup_coro (next); |
716 | setup_coro (next); |
|
|
717 | /* need to change stack from main_stack to real one */ |
|
|
718 | next->stack = 0; |
742 | } |
719 | } |
|
|
720 | |
|
|
721 | if (!next->stack) |
|
|
722 | next->stack = stack_get (); |
|
|
723 | |
|
|
724 | if (prev_stack != next->stack) |
|
|
725 | coro_transfer (&prev_stack->cctx, &next->stack->cctx); |
743 | } |
726 | } |
744 | |
727 | |
745 | next->cursp = stacklevel; |
728 | transfer_tail (); |
|
|
729 | } |
|
|
730 | |
|
|
731 | /* use this function pointer to call the above function */ |
|
|
732 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
733 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
734 | |
|
|
735 | static void |
|
|
736 | coro_state_destroy (struct coro *coro) |
|
|
737 | { |
|
|
738 | if (coro->refcnt--) |
|
|
739 | return; |
|
|
740 | |
|
|
741 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
742 | { |
|
|
743 | struct coro temp; |
|
|
744 | |
|
|
745 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
746 | LOAD (aTHX_ coro); |
|
|
747 | |
|
|
748 | destroy_stacks (aTHX); |
|
|
749 | |
|
|
750 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
751 | |
|
|
752 | coro->mainstack = 0; |
|
|
753 | } |
|
|
754 | |
|
|
755 | stack_free (coro->stack); |
|
|
756 | SvREFCNT_dec (coro->args); |
|
|
757 | Safefree (coro); |
|
|
758 | } |
|
|
759 | |
|
|
760 | static int |
|
|
761 | coro_state_clear (SV *sv, MAGIC *mg) |
|
|
762 | { |
|
|
763 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
764 | mg->mg_ptr = 0; |
|
|
765 | |
|
|
766 | coro_state_destroy (coro); |
|
|
767 | |
|
|
768 | return 0; |
|
|
769 | } |
|
|
770 | |
|
|
771 | static int |
|
|
772 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
|
|
773 | { |
|
|
774 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
775 | |
|
|
776 | ++coro->refcnt; |
|
|
777 | |
|
|
778 | return 0; |
|
|
779 | } |
|
|
780 | |
|
|
781 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
|
|
782 | |
|
|
783 | static struct coro * |
|
|
784 | SvSTATE (SV *coro) |
|
|
785 | { |
|
|
786 | HV *stash; |
|
|
787 | MAGIC *mg; |
|
|
788 | |
|
|
789 | if (SvROK (coro)) |
|
|
790 | coro = SvRV (coro); |
|
|
791 | |
|
|
792 | stash = SvSTASH (coro); |
|
|
793 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
794 | { |
|
|
795 | /* very slow, but rare, check */ |
|
|
796 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
797 | croak ("Coro::State object required"); |
|
|
798 | } |
|
|
799 | |
|
|
800 | mg = SvMAGIC (coro); |
|
|
801 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
802 | return (struct coro *)mg->mg_ptr; |
|
|
803 | } |
|
|
804 | |
|
|
805 | static void |
|
|
806 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
|
|
807 | { |
|
|
808 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
|
|
809 | } |
|
|
810 | |
|
|
811 | /** Coro ********************************************************************/ |
|
|
812 | |
|
|
813 | #define PRIO_MAX 3 |
|
|
814 | #define PRIO_HIGH 1 |
|
|
815 | #define PRIO_NORMAL 0 |
|
|
816 | #define PRIO_LOW -1 |
|
|
817 | #define PRIO_IDLE -3 |
|
|
818 | #define PRIO_MIN -4 |
|
|
819 | |
|
|
820 | /* for Coro.pm */ |
|
|
821 | static GV *coro_current, *coro_idle; |
|
|
822 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
823 | static int coro_nready; |
|
|
824 | |
|
|
825 | static void |
|
|
826 | coro_enq (pTHX_ SV *sv) |
|
|
827 | { |
|
|
828 | int prio; |
|
|
829 | |
|
|
830 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
831 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
832 | |
|
|
833 | prio = SvSTATE (sv)->prio; |
|
|
834 | |
|
|
835 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
836 | coro_nready++; |
|
|
837 | } |
|
|
838 | |
|
|
839 | static SV * |
|
|
840 | coro_deq (pTHX_ int min_prio) |
|
|
841 | { |
|
|
842 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
843 | |
|
|
844 | min_prio -= PRIO_MIN; |
|
|
845 | if (min_prio < 0) |
|
|
846 | min_prio = 0; |
|
|
847 | |
|
|
848 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
849 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
850 | { |
|
|
851 | coro_nready--; |
|
|
852 | return av_shift (coro_ready [prio]); |
|
|
853 | } |
|
|
854 | |
|
|
855 | return 0; |
|
|
856 | } |
|
|
857 | |
|
|
858 | static void |
|
|
859 | api_ready (SV *coro) |
|
|
860 | { |
|
|
861 | dTHX; |
|
|
862 | |
|
|
863 | if (SvROK (coro)) |
|
|
864 | coro = SvRV (coro); |
|
|
865 | |
|
|
866 | LOCK; |
|
|
867 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
|
|
868 | UNLOCK; |
|
|
869 | } |
|
|
870 | |
|
|
871 | static void |
|
|
872 | api_schedule (void) |
|
|
873 | { |
|
|
874 | dTHX; |
|
|
875 | |
|
|
876 | SV *prev, *next; |
|
|
877 | SV *current = GvSV (coro_current); |
|
|
878 | |
|
|
879 | for (;;) |
|
|
880 | { |
|
|
881 | LOCK; |
|
|
882 | |
|
|
883 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
884 | |
|
|
885 | if (next) |
|
|
886 | break; |
|
|
887 | |
|
|
888 | UNLOCK; |
|
|
889 | |
|
|
890 | { |
|
|
891 | dSP; |
|
|
892 | |
|
|
893 | ENTER; |
|
|
894 | SAVETMPS; |
|
|
895 | |
|
|
896 | PUSHMARK (SP); |
|
|
897 | PUTBACK; |
|
|
898 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
899 | |
|
|
900 | FREETMPS; |
|
|
901 | LEAVE; |
|
|
902 | } |
|
|
903 | } |
|
|
904 | |
|
|
905 | prev = SvRV (current); |
|
|
906 | SvRV (current) = next; |
|
|
907 | |
|
|
908 | /* free this only after the transfer */ |
|
|
909 | coro_mortal = prev; |
|
|
910 | |
|
|
911 | UNLOCK; |
|
|
912 | |
|
|
913 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL); |
|
|
914 | } |
|
|
915 | |
|
|
916 | static int coro_cede_self; |
|
|
917 | |
|
|
918 | static void |
|
|
919 | api_cede (void) |
|
|
920 | { |
|
|
921 | dTHX; |
|
|
922 | SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); |
|
|
923 | |
|
|
924 | LOCK; |
|
|
925 | |
|
|
926 | if (coro_cede_self) |
|
|
927 | { |
|
|
928 | AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN]; |
|
|
929 | av_unshift (runqueue, 1); |
|
|
930 | av_store (runqueue, 0, current); |
|
|
931 | coro_nready++; |
|
|
932 | coro_cede_self = 0; |
|
|
933 | } |
|
|
934 | else |
|
|
935 | coro_enq (aTHX_ current); |
|
|
936 | |
|
|
937 | UNLOCK; |
|
|
938 | |
|
|
939 | api_schedule (); |
746 | } |
940 | } |
747 | |
941 | |
748 | MODULE = Coro::State PACKAGE = Coro::State |
942 | MODULE = Coro::State PACKAGE = Coro::State |
749 | |
943 | |
750 | PROTOTYPES: ENABLE |
944 | PROTOTYPES: DISABLE |
751 | |
945 | |
752 | BOOT: |
946 | BOOT: |
753 | { /* {} necessary for stoopid perl-5.6.x */ |
947 | { |
754 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
948 | #ifdef USE_ITHREADS |
755 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
949 | MUTEX_INIT (&coro_mutex); |
|
|
950 | #endif |
|
|
951 | BOOT_PAGESIZE; |
|
|
952 | |
756 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
953 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
757 | |
954 | |
758 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
955 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
759 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
956 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
760 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
957 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
761 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
|
|
762 | |
|
|
763 | if (!padlist_cache) |
|
|
764 | padlist_cache = newHV (); |
|
|
765 | |
958 | |
766 | main_mainstack = PL_mainstack; |
959 | main_mainstack = PL_mainstack; |
767 | } |
|
|
768 | |
960 | |
769 | Coro::State |
961 | coroapi.ver = CORO_API_VERSION; |
770 | _newprocess(args) |
962 | coroapi.transfer = api_transfer; |
771 | SV * args |
963 | |
772 | PROTOTYPE: $ |
964 | Newz (0, main_stack, 1, coro_stack); |
|
|
965 | main_stack->idle_sp = (void *)-1; |
|
|
966 | |
|
|
967 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
|
|
968 | } |
|
|
969 | |
|
|
970 | SV * |
|
|
971 | new (char *klass, ...) |
773 | CODE: |
972 | CODE: |
774 | Coro__State coro; |
973 | { |
|
|
974 | struct coro *coro; |
|
|
975 | HV *hv; |
|
|
976 | int i; |
775 | |
977 | |
776 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
|
|
777 | croak ("Coro::State::_newprocess expects an arrayref"); |
|
|
778 | |
|
|
779 | New (0, coro, 1, struct coro); |
978 | Newz (0, coro, 1, struct coro); |
|
|
979 | coro->args = newAV (); |
780 | |
980 | |
781 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
981 | hv = newHV (); |
|
|
982 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
983 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
984 | |
|
|
985 | av_push (coro->args, newSVsv (RETVAL)); |
|
|
986 | for (i = 1; i < items; i++) |
|
|
987 | av_push (coro->args, newSVsv (ST (i))); |
|
|
988 | |
|
|
989 | coro->stack = main_stack; |
782 | coro->mainstack = 0; /* actual work is done inside transfer */ |
990 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
783 | coro->stack = 0; |
991 | /*coro->stack = 0;*/ |
784 | |
992 | } |
785 | RETVAL = coro; |
|
|
786 | OUTPUT: |
993 | OUTPUT: |
787 | RETVAL |
994 | RETVAL |
788 | |
995 | |
789 | void |
996 | void |
790 | transfer(prev, next, flags = TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK) |
997 | transfer (prev, next, flags) |
791 | Coro::State_or_hashref prev |
998 | SV *prev |
792 | Coro::State_or_hashref next |
999 | SV *next |
793 | int flags |
1000 | int flags |
794 | PROTOTYPE: @ |
|
|
795 | CODE: |
1001 | CODE: |
796 | transfer (aTHX_ prev, next, flags); |
1002 | PUTBACK; |
|
|
1003 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
|
|
1004 | SPAGAIN; |
|
|
1005 | |
|
|
1006 | int |
|
|
1007 | prio (Coro::State coro, int newprio = 0) |
|
|
1008 | ALIAS: |
|
|
1009 | nice = 1 |
|
|
1010 | CODE: |
|
|
1011 | { |
|
|
1012 | RETVAL = coro->prio; |
|
|
1013 | |
|
|
1014 | if (items > 1) |
|
|
1015 | { |
|
|
1016 | if (ix) |
|
|
1017 | newprio += coro->prio; |
|
|
1018 | |
|
|
1019 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1020 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1021 | |
|
|
1022 | coro->prio = newprio; |
|
|
1023 | } |
|
|
1024 | } |
797 | |
1025 | |
798 | void |
1026 | void |
799 | DESTROY(coro) |
1027 | _clear_idle_sp (Coro::State self) |
800 | Coro::State coro |
1028 | CODE: |
801 | CODE: |
1029 | self->stack->idle_sp = 0; |
802 | |
|
|
803 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
804 | { |
|
|
805 | struct coro temp; |
|
|
806 | |
|
|
807 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
808 | LOAD(aTHX_ coro); |
|
|
809 | |
|
|
810 | destroy_stacks (aTHX); |
|
|
811 | |
|
|
812 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
|
|
813 | |
|
|
814 | coro->mainstack = 0; |
|
|
815 | } |
|
|
816 | |
|
|
817 | deallocate_stack (coro); |
|
|
818 | |
|
|
819 | Safefree (coro); |
|
|
820 | |
1030 | |
821 | void |
1031 | void |
822 | flush() |
1032 | _clone_state_from (SV *dst, SV *src) |
823 | CODE: |
1033 | CODE: |
824 | #ifdef MAY_FLUSH |
1034 | { |
825 | flush_padlist_cache (); |
1035 | struct coro *coro_src = SvSTATE (src); |
826 | #endif |
1036 | |
|
|
1037 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1038 | |
|
|
1039 | ++coro_src->refcnt; |
|
|
1040 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | void |
|
|
1044 | _exit (code) |
|
|
1045 | int code |
|
|
1046 | PROTOTYPE: $ |
|
|
1047 | CODE: |
|
|
1048 | _exit (code); |
827 | |
1049 | |
828 | MODULE = Coro::State PACKAGE = Coro::Cont |
1050 | MODULE = Coro::State PACKAGE = Coro::Cont |
829 | |
1051 | |
830 | # this is slightly dirty |
|
|
831 | |
|
|
832 | void |
1052 | void |
833 | yield(...) |
1053 | yield (...) |
834 | PROTOTYPE: @ |
1054 | PROTOTYPE: @ |
835 | CODE: |
1055 | CODE: |
836 | static SV *returnstk; |
1056 | { |
|
|
1057 | SV *yieldstack; |
837 | SV *sv; |
1058 | SV *sv; |
838 | AV *defav = GvAV (PL_defgv); |
1059 | AV *defav = GvAV (PL_defgv); |
839 | struct coro *prev, *next; |
1060 | struct coro *prev, *next; |
840 | |
1061 | |
841 | if (!returnstk) |
1062 | yieldstack = *hv_fetch ( |
842 | returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); |
1063 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1064 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1065 | 0 |
|
|
1066 | ); |
843 | |
1067 | |
844 | /* set up @_ -- ugly */ |
1068 | /* set up @_ -- ugly */ |
845 | av_clear (defav); |
1069 | av_clear (defav); |
846 | av_fill (defav, items - 1); |
1070 | av_fill (defav, items - 1); |
847 | while (items--) |
1071 | while (items--) |
848 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1072 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
849 | |
1073 | |
850 | mg_get (returnstk); /* isn't documentation wrong for mg_get? */ |
|
|
851 | sv = av_pop ((AV *)SvRV (returnstk)); |
1074 | sv = av_pop ((AV *)SvRV (yieldstack)); |
852 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1075 | prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
853 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1076 | next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
854 | SvREFCNT_dec (sv); |
1077 | SvREFCNT_dec (sv); |
855 | |
1078 | |
856 | transfer(aTHX_ prev, next, 0); |
1079 | coro_state_transfer (aTHX_ prev, next, 0); |
|
|
1080 | } |
857 | |
1081 | |
|
|
1082 | MODULE = Coro::State PACKAGE = Coro |
|
|
1083 | |
|
|
1084 | BOOT: |
|
|
1085 | { |
|
|
1086 | int i; |
|
|
1087 | |
|
|
1088 | coro_stash = gv_stashpv ("Coro", TRUE); |
|
|
1089 | |
|
|
1090 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
|
|
1091 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
|
|
1092 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
|
|
1093 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
|
|
1094 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
|
|
1095 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
|
|
1096 | |
|
|
1097 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1098 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1099 | |
|
|
1100 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1101 | coro_ready[i] = newAV (); |
|
|
1102 | |
|
|
1103 | { |
|
|
1104 | SV *sv = perl_get_sv("Coro::API", 1); |
|
|
1105 | |
|
|
1106 | coroapi.schedule = api_schedule; |
|
|
1107 | coroapi.cede = api_cede; |
|
|
1108 | coroapi.ready = api_ready; |
|
|
1109 | coroapi.nready = &coro_nready; |
|
|
1110 | coroapi.current = coro_current; |
|
|
1111 | |
|
|
1112 | GCoroAPI = &coroapi; |
|
|
1113 | sv_setiv (sv, (IV)&coroapi); |
|
|
1114 | SvREADONLY_on (sv); |
|
|
1115 | } |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | void |
|
|
1119 | ready (SV *self) |
|
|
1120 | PROTOTYPE: $ |
|
|
1121 | CODE: |
|
|
1122 | api_ready (self); |
|
|
1123 | |
|
|
1124 | int |
|
|
1125 | nready (...) |
|
|
1126 | PROTOTYPE: |
|
|
1127 | CODE: |
|
|
1128 | RETVAL = coro_nready; |
|
|
1129 | OUTPUT: |
|
|
1130 | RETVAL |
|
|
1131 | |
|
|
1132 | void |
|
|
1133 | schedule (...) |
|
|
1134 | PROTOTYPE: |
|
|
1135 | CODE: |
|
|
1136 | api_schedule (); |
|
|
1137 | |
|
|
1138 | void |
|
|
1139 | _set_cede_self () |
|
|
1140 | CODE: |
|
|
1141 | coro_cede_self = 1; |
|
|
1142 | |
|
|
1143 | void |
|
|
1144 | cede (...) |
|
|
1145 | PROTOTYPE: |
|
|
1146 | CODE: |
|
|
1147 | api_cede (); |
|
|
1148 | |
|
|
1149 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1150 | |
|
|
1151 | SV * |
|
|
1152 | _get_state () |
|
|
1153 | CODE: |
|
|
1154 | { |
|
|
1155 | struct { |
|
|
1156 | int errorno; |
|
|
1157 | int laststype; |
|
|
1158 | int laststatval; |
|
|
1159 | Stat_t statcache; |
|
|
1160 | } data; |
|
|
1161 | |
|
|
1162 | data.errorno = errno; |
|
|
1163 | data.laststype = PL_laststype; |
|
|
1164 | data.laststatval = PL_laststatval; |
|
|
1165 | data.statcache = PL_statcache; |
|
|
1166 | |
|
|
1167 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1168 | } |
|
|
1169 | OUTPUT: |
|
|
1170 | RETVAL |
|
|
1171 | |
|
|
1172 | void |
|
|
1173 | _set_state (char *data_) |
|
|
1174 | PROTOTYPE: $ |
|
|
1175 | CODE: |
|
|
1176 | { |
|
|
1177 | struct { |
|
|
1178 | int errorno; |
|
|
1179 | int laststype; |
|
|
1180 | int laststatval; |
|
|
1181 | Stat_t statcache; |
|
|
1182 | } *data = (void *)data_; |
|
|
1183 | |
|
|
1184 | errno = data->errorno; |
|
|
1185 | PL_laststype = data->laststype; |
|
|
1186 | PL_laststatval = data->laststatval; |
|
|
1187 | PL_statcache = data->statcache; |
|
|
1188 | } |