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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" |
6 | |
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 | |
7 | #include <signal.h> |
32 | #include <errno.h> |
8 | |
33 | |
9 | #ifdef HAVE_MMAP |
34 | #ifdef HAVE_MMAP |
10 | # include <unistd.h> |
35 | # include <unistd.h> |
11 | # include <sys/mman.h> |
36 | # include <sys/mman.h> |
12 | # ifndef MAP_ANONYMOUS |
37 | # ifndef MAP_ANONYMOUS |
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16 | # undef HAVE_MMAP |
41 | # undef HAVE_MMAP |
17 | # endif |
42 | # endif |
18 | # endif |
43 | # endif |
19 | #endif |
44 | #endif |
20 | |
45 | |
21 | #define MAY_FLUSH /* increases codesize and is rarely used */ |
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22 | |
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23 | #define SUB_INIT "Coro::State::initialize" |
46 | #define SUB_INIT "Coro::State::initialize" |
24 | #define UCORO_STATE "_coro_state" |
47 | #define UCORO_STATE "_coro_state" |
25 | |
48 | |
26 | /* The next macro should declare a variable stacklevel that contains and approximation |
49 | /* The next macro should declare a variable stacklevel that contains and approximation |
27 | * to the current C stack pointer. Its property is that it changes with each call |
50 | * to the current C stack pointer. Its property is that it changes with each call |
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32 | |
55 | |
33 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
56 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
34 | |
57 | |
35 | #include "CoroAPI.h" |
58 | #include "CoroAPI.h" |
36 | |
59 | |
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60 | #ifdef USE_ITHREADS |
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61 | static perl_mutex coro_mutex; |
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62 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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63 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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64 | #else |
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65 | # define LOCK (void)0 |
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66 | # define UNLOCK (void)0 |
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67 | #endif |
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68 | |
37 | static struct CoroAPI coroapi; |
69 | static struct CoroAPI coroapi; |
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70 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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71 | static HV *coro_state_stash; |
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72 | static SV *ucoro_state_sv; |
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73 | static U32 ucoro_state_hash; |
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74 | static SV *coro_mortal; /* will be freed after next transfer */ |
38 | |
75 | |
39 | /* this is actually not only the c stack but also c registers etc... */ |
76 | /* this is actually not only the c stack but also c registers etc... */ |
40 | typedef struct { |
77 | typedef struct { |
41 | int refcnt; /* pointer reference counter */ |
78 | int refcnt; /* pointer reference counter */ |
42 | int usecnt; /* shared by how many coroutines */ |
79 | int usecnt; /* shared by how many coroutines */ |
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47 | void *sptr; |
84 | void *sptr; |
48 | long ssize; /* positive == mmap, otherwise malloc */ |
85 | long ssize; /* positive == mmap, otherwise malloc */ |
49 | } coro_stack; |
86 | } coro_stack; |
50 | |
87 | |
51 | struct coro { |
88 | struct coro { |
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89 | /* the top-level JMPENV for each coroutine, needed to catch dies. */ |
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90 | JMPENV start_env; |
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91 | |
52 | /* the optional C context */ |
92 | /* the optional C context */ |
53 | coro_stack *stack; |
93 | coro_stack *stack; |
54 | void *cursp; |
94 | void *cursp; |
55 | int gencnt; |
95 | int gencnt; |
56 | |
96 | |
57 | /* optionally saved, might be zero */ |
97 | /* optionally saved, might be zero */ |
58 | AV *defav; |
98 | AV *defav; |
59 | SV *defsv; |
99 | SV *defsv; |
60 | SV *errsv; |
100 | SV *errsv; |
61 | /* TODO: PL_pmop might be nice && effortless to save. */ |
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62 | |
101 | |
63 | /* saved global state not related to stacks */ |
102 | /* saved global state not related to stacks */ |
64 | U8 dowarn; |
103 | U8 dowarn; |
65 | I32 in_eval; |
104 | I32 in_eval; |
66 | |
105 | |
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69 | AV *curstack; |
108 | AV *curstack; |
70 | AV *mainstack; |
109 | AV *mainstack; |
71 | SV **stack_sp; |
110 | SV **stack_sp; |
72 | OP *op; |
111 | OP *op; |
73 | SV **curpad; |
112 | SV **curpad; |
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113 | AV *comppad; |
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114 | CV *compcv; |
74 | SV **stack_base; |
115 | SV **stack_base; |
75 | SV **stack_max; |
116 | SV **stack_max; |
76 | SV **tmps_stack; |
117 | SV **tmps_stack; |
77 | I32 tmps_floor; |
118 | I32 tmps_floor; |
78 | I32 tmps_ix; |
119 | I32 tmps_ix; |
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87 | I32 savestack_ix; |
128 | I32 savestack_ix; |
88 | I32 savestack_max; |
129 | I32 savestack_max; |
89 | OP **retstack; |
130 | OP **retstack; |
90 | I32 retstack_ix; |
131 | I32 retstack_ix; |
91 | I32 retstack_max; |
132 | I32 retstack_max; |
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133 | PMOP *curpm; |
92 | COP *curcop; |
134 | COP *curcop; |
93 | JMPENV *top_env; |
135 | JMPENV *top_env; |
94 | |
136 | |
95 | /* data associated with this coroutine (initial args) */ |
137 | /* data associated with this coroutine (initial args) */ |
96 | AV *args; |
138 | AV *args; |
97 | }; |
139 | }; |
98 | |
140 | |
99 | typedef struct coro *Coro__State; |
141 | typedef struct coro *Coro__State; |
100 | typedef struct coro *Coro__State_or_hashref; |
142 | typedef struct coro *Coro__State_or_hashref; |
101 | |
143 | |
102 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
144 | static AV * |
103 | static HV *coro_state_stash; |
145 | coro_clone_padlist (pTHX_ CV *cv) |
104 | static SV *ucoro_state_sv; |
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105 | static U32 ucoro_state_hash; |
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106 | static HV *padlist_cache; |
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107 | static SV *coro_mortal; /* will be freed after next transfer */ |
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108 | |
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109 | /* mostly copied from op.c:cv_clone2 */ |
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110 | STATIC AV * |
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111 | clone_padlist (AV *protopadlist) |
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112 | { |
146 | { |
113 | AV *av; |
147 | AV *padlist = CvPADLIST (cv); |
114 | I32 ix; |
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115 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
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116 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
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117 | SV **pname = AvARRAY (protopad_name); |
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118 | SV **ppad = AvARRAY (protopad); |
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119 | I32 fname = AvFILLp (protopad_name); |
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120 | I32 fpad = AvFILLp (protopad); |
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121 | AV *newpadlist, *newpad_name, *newpad; |
148 | AV *newpadlist, *newpad; |
122 | SV **npad; |
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123 | |
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124 | newpad_name = newAV (); |
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125 | for (ix = fname; ix >= 0; ix--) |
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126 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
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127 | |
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128 | newpad = newAV (); |
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129 | av_fill (newpad, AvFILLp (protopad)); |
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130 | npad = AvARRAY (newpad); |
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131 | |
149 | |
132 | newpadlist = newAV (); |
150 | newpadlist = newAV (); |
133 | AvREAL_off (newpadlist); |
151 | AvREAL_off (newpadlist); |
134 | av_store (newpadlist, 0, (SV *) newpad_name); |
152 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
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153 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
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154 | --AvFILLp (padlist); |
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155 | |
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156 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
135 | av_store (newpadlist, 1, (SV *) newpad); |
157 | av_store (newpadlist, 1, (SV *)newpad); |
136 | |
158 | |
137 | av = newAV (); /* will be @_ */ |
159 | return newpadlist; |
138 | av_extend (av, 0); |
160 | } |
139 | av_store (newpad, 0, (SV *) av); |
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140 | AvFLAGS (av) = AVf_REIFY; |
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141 | |
161 | |
142 | for (ix = fpad; ix > 0; ix--) |
162 | static void |
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163 | free_padlist (pTHX_ AV *padlist) |
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164 | { |
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165 | /* may be during global destruction */ |
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166 | if (SvREFCNT (padlist)) |
143 | { |
167 | { |
144 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
168 | I32 i = AvFILLp (padlist); |
145 | if (namesv && namesv != &PL_sv_undef) |
169 | while (i >= 0) |
146 | { |
170 | { |
147 | char *name = SvPVX (namesv); /* XXX */ |
171 | SV **svp = av_fetch (padlist, i--, FALSE); |
148 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
172 | if (svp) |
149 | { /* lexical from outside? */ |
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150 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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151 | } |
173 | { |
152 | else |
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153 | { /* our own lexical */ |
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154 | SV *sv; |
174 | SV *sv; |
155 | if (*name == '&') |
175 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
156 | sv = SvREFCNT_inc (ppad[ix]); |
176 | SvREFCNT_dec (sv); |
157 | else if (*name == '@') |
177 | |
158 | sv = (SV *) newAV (); |
178 | SvREFCNT_dec (*svp); |
159 | else if (*name == '%') |
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160 | sv = (SV *) newHV (); |
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161 | else |
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162 | sv = NEWSV (0, 0); |
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163 | if (!SvPADBUSY (sv)) |
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164 | SvPADMY_on (sv); |
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165 | npad[ix] = sv; |
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166 | } |
179 | } |
167 | } |
180 | } |
168 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
181 | |
169 | { |
182 | SvREFCNT_dec ((SV*)padlist); |
170 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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171 | } |
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172 | else |
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173 | { |
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174 | SV *sv = NEWSV (0, 0); |
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175 | SvPADTMP_on (sv); |
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176 | npad[ix] = sv; |
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177 | } |
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178 | } |
183 | } |
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184 | } |
179 | |
185 | |
180 | #if 0 /* return -ENOTUNDERSTOOD */ |
186 | static int |
181 | /* Now that vars are all in place, clone nested closures. */ |
187 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
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188 | { |
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189 | AV *padlist; |
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190 | AV *av = (AV *)mg->mg_obj; |
182 | |
191 | |
183 | for (ix = fpad; ix > 0; ix--) { |
192 | /* casting is fun. */ |
184 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
193 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
185 | if (namesv |
194 | free_padlist (aTHX_ padlist); |
186 | && namesv != &PL_sv_undef |
195 | |
187 | && !(SvFLAGS(namesv) & SVf_FAKE) |
196 | SvREFCNT_dec (av); |
188 | && *SvPVX(namesv) == '&' |
197 | |
189 | && CvCLONE(ppad[ix])) |
198 | return 0; |
190 | { |
199 | } |
191 | CV *kid = cv_clone((CV*)ppad[ix]); |
200 | |
192 | SvREFCNT_dec(ppad[ix]); |
201 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
193 | CvCLONE_on(kid); |
202 | |
194 | SvPADMY_on(kid); |
203 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
195 | npad[ix] = (SV*)kid; |
204 | |
196 | } |
205 | /* the next two functions merely cache the padlists */ |
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206 | static void |
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207 | get_padlist (pTHX_ CV *cv) |
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208 | { |
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209 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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210 | |
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211 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
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212 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
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213 | else |
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214 | { |
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215 | #if 0 |
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216 | /* this should work - but it doesn't :( */ |
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217 | CV *cp = Perl_cv_clone (aTHX_ cv); |
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218 | CvPADLIST (cv) = CvPADLIST (cp); |
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219 | CvPADLIST (cp) = 0; |
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220 | SvREFCNT_dec (cp); |
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221 | #else |
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222 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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223 | #endif |
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224 | } |
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225 | } |
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226 | |
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227 | static void |
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228 | put_padlist (pTHX_ CV *cv) |
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229 | { |
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230 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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231 | |
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232 | if (!mg) |
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233 | { |
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234 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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235 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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236 | mg->mg_virtual = &vtbl_coro; |
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237 | mg->mg_obj = (SV *)newAV (); |
197 | } |
238 | } |
198 | #endif |
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199 | |
239 | |
200 | return newpadlist; |
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201 | } |
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202 | |
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203 | #ifdef MAY_FLUSH |
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204 | STATIC void |
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205 | free_padlist (AV *padlist) |
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206 | { |
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207 | /* may be during global destruction */ |
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208 | if (SvREFCNT(padlist)) |
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209 | { |
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210 | I32 i = AvFILLp(padlist); |
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211 | while (i >= 0) |
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212 | { |
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213 | SV **svp = av_fetch(padlist, i--, FALSE); |
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214 | SV *sv = svp ? *svp : Nullsv; |
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215 | if (sv) |
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216 | SvREFCNT_dec(sv); |
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217 | } |
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218 | |
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219 | SvREFCNT_dec((SV*)padlist); |
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220 | } |
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221 | } |
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222 | #endif |
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223 | |
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224 | /* the next two functions merely cache the padlists */ |
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225 | STATIC void |
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226 | get_padlist (CV *cv) |
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227 | { |
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228 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); |
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229 | |
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230 | if (he && AvFILLp ((AV *)*he) >= 0) |
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231 | CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); |
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232 | else |
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233 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
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234 | } |
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235 | |
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236 | STATIC void |
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237 | put_padlist (CV *cv) |
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238 | { |
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239 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); |
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240 | |
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241 | if (SvTYPE (*he) != SVt_PVAV) |
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242 | { |
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243 | SvREFCNT_dec (*he); |
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244 | *he = (SV *)newAV (); |
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245 | } |
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246 | |
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247 | av_push ((AV *)*he, (SV *)CvPADLIST (cv)); |
240 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
248 | } |
241 | } |
249 | |
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250 | #ifdef MAY_FLUSH |
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251 | STATIC void |
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252 | flush_padlist_cache () |
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253 | { |
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254 | HV *hv = padlist_cache; |
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255 | padlist_cache = newHV (); |
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256 | |
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257 | if (hv_iterinit (hv)) |
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258 | { |
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259 | HE *he; |
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260 | AV *padlist; |
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261 | |
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262 | while (!!(he = hv_iternext (hv))) |
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263 | { |
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264 | AV *av = (AV *)HeVAL(he); |
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265 | |
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266 | /* casting is fun. */ |
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267 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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268 | free_padlist (padlist); |
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269 | } |
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270 | } |
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271 | |
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272 | SvREFCNT_dec (hv); |
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273 | } |
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274 | #endif |
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275 | |
242 | |
276 | #define SB do { |
243 | #define SB do { |
277 | #define SE } while (0) |
244 | #define SE } while (0) |
278 | |
245 | |
279 | #define LOAD(state) load_state(aTHX_ (state)); |
246 | #define LOAD(state) load_state(aTHX_ (state)); |
280 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
247 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
281 | |
248 | |
282 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
249 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
283 | |
250 | |
284 | static void |
251 | static void |
285 | load_state(pTHX_ Coro__State c) |
252 | load_state(pTHX_ Coro__State c) |
286 | { |
253 | { |
287 | PL_dowarn = c->dowarn; |
254 | PL_dowarn = c->dowarn; |
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291 | PL_curstack = c->curstack; |
258 | PL_curstack = c->curstack; |
292 | PL_mainstack = c->mainstack; |
259 | PL_mainstack = c->mainstack; |
293 | PL_stack_sp = c->stack_sp; |
260 | PL_stack_sp = c->stack_sp; |
294 | PL_op = c->op; |
261 | PL_op = c->op; |
295 | PL_curpad = c->curpad; |
262 | PL_curpad = c->curpad; |
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263 | PL_comppad = c->comppad; |
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264 | PL_compcv = c->compcv; |
296 | PL_stack_base = c->stack_base; |
265 | PL_stack_base = c->stack_base; |
297 | PL_stack_max = c->stack_max; |
266 | PL_stack_max = c->stack_max; |
298 | PL_tmps_stack = c->tmps_stack; |
267 | PL_tmps_stack = c->tmps_stack; |
299 | PL_tmps_floor = c->tmps_floor; |
268 | PL_tmps_floor = c->tmps_floor; |
300 | PL_tmps_ix = c->tmps_ix; |
269 | PL_tmps_ix = c->tmps_ix; |
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306 | PL_scopestack_ix = c->scopestack_ix; |
275 | PL_scopestack_ix = c->scopestack_ix; |
307 | PL_scopestack_max = c->scopestack_max; |
276 | PL_scopestack_max = c->scopestack_max; |
308 | PL_savestack = c->savestack; |
277 | PL_savestack = c->savestack; |
309 | PL_savestack_ix = c->savestack_ix; |
278 | PL_savestack_ix = c->savestack_ix; |
310 | PL_savestack_max = c->savestack_max; |
279 | PL_savestack_max = c->savestack_max; |
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280 | #if PERL_VERSION < 9 |
311 | PL_retstack = c->retstack; |
281 | PL_retstack = c->retstack; |
312 | PL_retstack_ix = c->retstack_ix; |
282 | PL_retstack_ix = c->retstack_ix; |
313 | PL_retstack_max = c->retstack_max; |
283 | PL_retstack_max = c->retstack_max; |
|
|
284 | #endif |
|
|
285 | PL_curpm = c->curpm; |
314 | PL_curcop = c->curcop; |
286 | PL_curcop = c->curcop; |
315 | PL_top_env = c->top_env; |
287 | PL_top_env = c->top_env; |
316 | |
288 | |
317 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
289 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
318 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
290 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
… | |
… | |
327 | { |
299 | { |
328 | AV *padlist = (AV *)POPs; |
300 | AV *padlist = (AV *)POPs; |
329 | |
301 | |
330 | if (padlist) |
302 | if (padlist) |
331 | { |
303 | { |
332 | put_padlist (cv); /* mark this padlist as available */ |
304 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
333 | CvPADLIST(cv) = padlist; |
305 | CvPADLIST(cv) = padlist; |
334 | #ifdef USE_THREADS |
|
|
335 | /*CvOWNER(cv) = (struct perl_thread *)POPs;*/ |
|
|
336 | #endif |
|
|
337 | } |
306 | } |
338 | |
307 | |
339 | ++CvDEPTH(cv); |
308 | ++CvDEPTH(cv); |
340 | } |
309 | } |
341 | |
310 | |
… | |
… | |
368 | if (CxTYPE(cx) == CXt_SUB) |
337 | if (CxTYPE(cx) == CXt_SUB) |
369 | { |
338 | { |
370 | CV *cv = cx->blk_sub.cv; |
339 | CV *cv = cx->blk_sub.cv; |
371 | if (CvDEPTH(cv)) |
340 | if (CvDEPTH(cv)) |
372 | { |
341 | { |
373 | #ifdef USE_THREADS |
|
|
374 | /*XPUSHs ((SV *)CvOWNER(cv));*/ |
|
|
375 | /*CvOWNER(cv) = 0;*/ |
|
|
376 | /*error must unlock this cv etc.. etc...*/ |
|
|
377 | #endif |
|
|
378 | EXTEND (SP, CvDEPTH(cv)*2); |
342 | EXTEND (SP, CvDEPTH(cv)*2); |
379 | |
343 | |
380 | while (--CvDEPTH(cv)) |
344 | while (--CvDEPTH(cv)) |
381 | { |
345 | { |
382 | /* this tells the restore code to increment CvDEPTH */ |
346 | /* this tells the restore code to increment CvDEPTH */ |
… | |
… | |
385 | } |
349 | } |
386 | |
350 | |
387 | PUSHs ((SV *)CvPADLIST(cv)); |
351 | PUSHs ((SV *)CvPADLIST(cv)); |
388 | PUSHs ((SV *)cv); |
352 | PUSHs ((SV *)cv); |
389 | |
353 | |
390 | get_padlist (cv); /* this is a monster */ |
354 | get_padlist (aTHX_ cv); |
391 | } |
355 | } |
392 | } |
356 | } |
|
|
357 | #ifdef CXt_FORMAT |
393 | else if (CxTYPE(cx) == CXt_FORMAT) |
358 | else if (CxTYPE(cx) == CXt_FORMAT) |
394 | { |
359 | { |
395 | /* I never used formats, so how should I know how these are implemented? */ |
360 | /* I never used formats, so how should I know how these are implemented? */ |
396 | /* my bold guess is as a simple, plain sub... */ |
361 | /* my bold guess is as a simple, plain sub... */ |
397 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
362 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
398 | } |
363 | } |
|
|
364 | #endif |
399 | } |
365 | } |
400 | |
366 | |
401 | if (top_si->si_type == PERLSI_MAIN) |
367 | if (top_si->si_type == PERLSI_MAIN) |
402 | break; |
368 | break; |
403 | |
369 | |
… | |
… | |
420 | c->curstack = PL_curstack; |
386 | c->curstack = PL_curstack; |
421 | c->mainstack = PL_mainstack; |
387 | c->mainstack = PL_mainstack; |
422 | c->stack_sp = PL_stack_sp; |
388 | c->stack_sp = PL_stack_sp; |
423 | c->op = PL_op; |
389 | c->op = PL_op; |
424 | c->curpad = PL_curpad; |
390 | c->curpad = PL_curpad; |
|
|
391 | c->comppad = PL_comppad; |
|
|
392 | c->compcv = PL_compcv; |
425 | c->stack_base = PL_stack_base; |
393 | c->stack_base = PL_stack_base; |
426 | c->stack_max = PL_stack_max; |
394 | c->stack_max = PL_stack_max; |
427 | c->tmps_stack = PL_tmps_stack; |
395 | c->tmps_stack = PL_tmps_stack; |
428 | c->tmps_floor = PL_tmps_floor; |
396 | c->tmps_floor = PL_tmps_floor; |
429 | c->tmps_ix = PL_tmps_ix; |
397 | c->tmps_ix = PL_tmps_ix; |
… | |
… | |
435 | c->scopestack_ix = PL_scopestack_ix; |
403 | c->scopestack_ix = PL_scopestack_ix; |
436 | c->scopestack_max = PL_scopestack_max; |
404 | c->scopestack_max = PL_scopestack_max; |
437 | c->savestack = PL_savestack; |
405 | c->savestack = PL_savestack; |
438 | c->savestack_ix = PL_savestack_ix; |
406 | c->savestack_ix = PL_savestack_ix; |
439 | c->savestack_max = PL_savestack_max; |
407 | c->savestack_max = PL_savestack_max; |
|
|
408 | #if PERL_VERSION < 9 |
440 | c->retstack = PL_retstack; |
409 | c->retstack = PL_retstack; |
441 | c->retstack_ix = PL_retstack_ix; |
410 | c->retstack_ix = PL_retstack_ix; |
442 | c->retstack_max = PL_retstack_max; |
411 | c->retstack_max = PL_retstack_max; |
|
|
412 | #endif |
|
|
413 | c->curpm = PL_curpm; |
443 | c->curcop = PL_curcop; |
414 | c->curcop = PL_curcop; |
444 | c->top_env = PL_top_env; |
415 | c->top_env = PL_top_env; |
445 | } |
416 | } |
446 | |
417 | |
447 | /* |
418 | /* |
448 | * allocate various perl stacks. This is an exact copy |
419 | * allocate various perl stacks. This is an exact copy |
449 | * of perl.c:init_stacks, except that it uses less memory |
420 | * of perl.c:init_stacks, except that it uses less memory |
450 | * on the assumption that coroutines do not usually need |
421 | * on the (sometimes correct) assumption that coroutines do |
451 | * a lot of stackspace. |
422 | * not usually need a lot of stackspace. |
452 | */ |
423 | */ |
453 | STATIC void |
424 | static void |
454 | coro_init_stacks (pTHX) |
425 | coro_init_stacks (pTHX) |
455 | { |
426 | { |
|
|
427 | LOCK; |
|
|
428 | |
456 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
429 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
457 | PL_curstackinfo->si_type = PERLSI_MAIN; |
430 | PL_curstackinfo->si_type = PERLSI_MAIN; |
458 | PL_curstack = PL_curstackinfo->si_stack; |
431 | PL_curstack = PL_curstackinfo->si_stack; |
459 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
432 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
460 | |
433 | |
… | |
… | |
469 | |
442 | |
470 | New(54,PL_markstack,16,I32); |
443 | New(54,PL_markstack,16,I32); |
471 | PL_markstack_ptr = PL_markstack; |
444 | PL_markstack_ptr = PL_markstack; |
472 | PL_markstack_max = PL_markstack + 16; |
445 | PL_markstack_max = PL_markstack + 16; |
473 | |
446 | |
|
|
447 | #ifdef SET_MARK_OFFSET |
474 | SET_MARK_OFFSET; |
448 | SET_MARK_OFFSET; |
|
|
449 | #endif |
475 | |
450 | |
476 | New(54,PL_scopestack,16,I32); |
451 | New(54,PL_scopestack,16,I32); |
477 | PL_scopestack_ix = 0; |
452 | PL_scopestack_ix = 0; |
478 | PL_scopestack_max = 16; |
453 | PL_scopestack_max = 16; |
479 | |
454 | |
480 | New(54,PL_savestack,96,ANY); |
455 | New(54,PL_savestack,96,ANY); |
481 | PL_savestack_ix = 0; |
456 | PL_savestack_ix = 0; |
482 | PL_savestack_max = 96; |
457 | PL_savestack_max = 96; |
483 | |
458 | |
|
|
459 | #if PERL_VERSION < 9 |
484 | New(54,PL_retstack,8,OP*); |
460 | New(54,PL_retstack,8,OP*); |
485 | PL_retstack_ix = 0; |
461 | PL_retstack_ix = 0; |
486 | PL_retstack_max = 8; |
462 | PL_retstack_max = 8; |
|
|
463 | #endif |
|
|
464 | |
|
|
465 | UNLOCK; |
487 | } |
466 | } |
488 | |
467 | |
489 | /* |
468 | /* |
490 | * destroy the stacks, the callchain etc... |
469 | * destroy the stacks, the callchain etc... |
491 | * still there is a memleak of 128 bytes... |
|
|
492 | */ |
470 | */ |
493 | STATIC void |
471 | static void |
494 | destroy_stacks(pTHX) |
472 | destroy_stacks(pTHX) |
495 | { |
473 | { |
496 | if (!IN_DESTRUCT) |
474 | if (!IN_DESTRUCT) |
497 | { |
475 | { |
498 | /* is this ugly, I ask? */ |
476 | /* is this ugly, I ask? */ |
499 | while (PL_scopestack_ix) |
477 | LEAVE_SCOPE (0); |
500 | LEAVE; |
|
|
501 | |
478 | |
502 | /* sure it is, but more important: is it correct?? :/ */ |
479 | /* sure it is, but more important: is it correct?? :/ */ |
503 | while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ |
|
|
504 | FREETMPS; |
480 | FREETMPS; |
|
|
481 | |
|
|
482 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
505 | } |
483 | } |
506 | |
484 | |
507 | while (PL_curstackinfo->si_next) |
485 | while (PL_curstackinfo->si_next) |
508 | PL_curstackinfo = PL_curstackinfo->si_next; |
486 | PL_curstackinfo = PL_curstackinfo->si_next; |
509 | |
487 | |
510 | while (PL_curstackinfo) |
488 | while (PL_curstackinfo) |
511 | { |
489 | { |
512 | PERL_SI *p = PL_curstackinfo->si_prev; |
490 | PERL_SI *p = PL_curstackinfo->si_prev; |
513 | |
491 | |
514 | { |
492 | { /*D*//*remove*/ |
515 | dSP; |
493 | dSP; |
516 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
494 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
517 | PUTBACK; /* possibly superfluous */ |
495 | PUTBACK; /* possibly superfluous */ |
518 | } |
496 | } |
519 | |
497 | |
520 | if (!IN_DESTRUCT) |
498 | if (!IN_DESTRUCT) |
521 | { |
499 | { |
522 | dounwind(-1); |
500 | dounwind (-1);/*D*//*remove*/ |
523 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
501 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
524 | } |
502 | } |
525 | |
503 | |
526 | Safefree(PL_curstackinfo->si_cxstack); |
504 | Safefree (PL_curstackinfo->si_cxstack); |
527 | Safefree(PL_curstackinfo); |
505 | Safefree (PL_curstackinfo); |
528 | PL_curstackinfo = p; |
506 | PL_curstackinfo = p; |
529 | } |
507 | } |
530 | |
508 | |
531 | Safefree(PL_tmps_stack); |
509 | Safefree (PL_tmps_stack); |
532 | Safefree(PL_markstack); |
510 | Safefree (PL_markstack); |
533 | Safefree(PL_scopestack); |
511 | Safefree (PL_scopestack); |
534 | Safefree(PL_savestack); |
512 | Safefree (PL_savestack); |
|
|
513 | #if PERL_VERSION < 9 |
535 | Safefree(PL_retstack); |
514 | Safefree (PL_retstack); |
|
|
515 | #endif |
536 | } |
516 | } |
537 | |
517 | |
538 | static void |
518 | static void |
539 | allocate_stack (Coro__State ctx, int alloc) |
519 | allocate_stack (Coro__State ctx, int alloc) |
540 | { |
520 | { |
… | |
… | |
543 | New (0, stack, 1, coro_stack); |
523 | New (0, stack, 1, coro_stack); |
544 | |
524 | |
545 | stack->refcnt = 1; |
525 | stack->refcnt = 1; |
546 | stack->usecnt = 1; |
526 | stack->usecnt = 1; |
547 | stack->gencnt = ctx->gencnt = 0; |
527 | stack->gencnt = ctx->gencnt = 0; |
|
|
528 | |
548 | if (alloc) |
529 | if (alloc) |
549 | { |
530 | { |
550 | #if HAVE_MMAP |
531 | #if HAVE_MMAP |
551 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
532 | stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */ |
552 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
533 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
553 | if (stack->sptr == (void *)-1) |
534 | if (stack->sptr == (void *)-1) |
554 | #endif |
535 | #endif |
555 | { |
536 | { |
556 | /*FIXME*//*D*//* reasonable stack size! */ |
|
|
557 | stack->ssize = -4096 * sizeof (long); |
537 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
558 | New (0, stack->sptr, 4096, long); |
538 | New (0, stack->sptr, STACKSIZE, long); |
559 | } |
539 | } |
560 | } |
540 | } |
561 | else |
541 | else |
562 | stack->sptr = 0; |
542 | stack->sptr = 0; |
563 | |
543 | |
… | |
… | |
577 | { |
557 | { |
578 | #ifdef HAVE_MMAP |
558 | #ifdef HAVE_MMAP |
579 | if (stack->ssize > 0 && stack->sptr) |
559 | if (stack->ssize > 0 && stack->sptr) |
580 | munmap (stack->sptr, stack->ssize); |
560 | munmap (stack->sptr, stack->ssize); |
581 | else |
561 | else |
582 | #else |
562 | #endif |
583 | Safefree (stack->sptr); |
563 | Safefree (stack->sptr); |
584 | #endif |
564 | |
585 | Safefree (stack); |
565 | Safefree (stack); |
586 | } |
566 | } |
587 | else if (ctx->gencnt == stack->gencnt) |
567 | else if (ctx->gencnt == stack->gencnt) |
588 | --stack->usecnt; |
568 | --stack->usecnt; |
589 | } |
569 | } |
… | |
… | |
593 | setup_coro (void *arg) |
573 | setup_coro (void *arg) |
594 | { |
574 | { |
595 | /* |
575 | /* |
596 | * emulate part of the perl startup here. |
576 | * emulate part of the perl startup here. |
597 | */ |
577 | */ |
|
|
578 | dTHX; |
598 | dSP; |
579 | dSP; |
599 | Coro__State ctx = (Coro__State)arg; |
580 | Coro__State ctx = (Coro__State)arg; |
600 | SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); |
581 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
601 | |
582 | |
602 | coro_init_stacks (aTHX); |
583 | coro_init_stacks (aTHX); |
603 | /*PL_curcop = 0;*/ |
584 | /*PL_curcop = 0;*/ |
604 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
585 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
605 | SvREFCNT_dec (GvAV (PL_defgv)); |
586 | SvREFCNT_dec (GvAV (PL_defgv)); |
606 | GvAV (PL_defgv) = ctx->args; |
587 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
607 | |
588 | |
608 | SPAGAIN; |
589 | SPAGAIN; |
609 | |
590 | |
610 | if (ctx->stack) |
591 | if (ctx->stack) |
611 | { |
592 | { |
… | |
… | |
638 | * that doesn't matter, though, since it is only |
619 | * that doesn't matter, though, since it is only |
639 | * pp_nextstate and we never return... |
620 | * pp_nextstate and we never return... |
640 | * ah yes, and I don't care anyways ;) |
621 | * ah yes, and I don't care anyways ;) |
641 | */ |
622 | */ |
642 | PUTBACK; |
623 | PUTBACK; |
643 | PL_op = pp_entersub(); |
624 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
644 | SPAGAIN; |
625 | SPAGAIN; |
645 | |
626 | |
646 | ENTER; /* necessary e.g. for dounwind */ |
627 | ENTER; /* necessary e.g. for dounwind */ |
647 | } |
628 | } |
648 | } |
629 | } |
… | |
… | |
651 | continue_coro (void *arg) |
632 | continue_coro (void *arg) |
652 | { |
633 | { |
653 | /* |
634 | /* |
654 | * this is a _very_ stripped down perl interpreter ;) |
635 | * this is a _very_ stripped down perl interpreter ;) |
655 | */ |
636 | */ |
|
|
637 | dTHX; |
656 | Coro__State ctx = (Coro__State)arg; |
638 | Coro__State ctx = (Coro__State)arg; |
657 | JMPENV coro_start_env; |
|
|
658 | |
639 | |
659 | /* same as JMPENV_BOOTSTRAP */ |
|
|
660 | Zero(&coro_start_env, 1, JMPENV); |
|
|
661 | coro_start_env.je_ret = -1; |
|
|
662 | coro_start_env.je_mustcatch = TRUE; |
|
|
663 | PL_top_env = &coro_start_env; |
640 | PL_top_env = &ctx->start_env; |
664 | |
641 | |
665 | ctx->cursp = 0; |
642 | ctx->cursp = 0; |
666 | PL_op = PL_op->op_next; |
643 | PL_op = PL_op->op_next; |
667 | CALLRUNOPS(aTHX); |
644 | CALLRUNOPS(aTHX); |
668 | |
645 | |
669 | abort (); |
646 | abort (); |
670 | } |
647 | } |
671 | |
648 | |
672 | STATIC void |
649 | static void |
673 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
650 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
674 | { |
651 | { |
675 | dSTACKLEVEL; |
652 | dSTACKLEVEL; |
676 | static struct coro *xnext; |
|
|
677 | |
653 | |
678 | if (prev != next) |
654 | if (prev != next) |
679 | { |
655 | { |
680 | xnext = next; |
|
|
681 | |
|
|
682 | if (next->mainstack) |
656 | if (next->mainstack) |
683 | { |
657 | { |
|
|
658 | LOCK; |
684 | SAVE (prev, flags); |
659 | SAVE (prev, flags); |
685 | LOAD (next); |
660 | LOAD (next); |
|
|
661 | UNLOCK; |
686 | |
662 | |
687 | /* mark this state as in-use */ |
663 | /* mark this state as in-use */ |
688 | next->mainstack = 0; |
664 | next->mainstack = 0; |
689 | next->tmps_ix = -2; |
665 | next->tmps_ix = -2; |
690 | |
666 | |
… | |
… | |
709 | continue_coro, (void *)next, |
685 | continue_coro, (void *)next, |
710 | next->stack->sptr, labs (next->stack->ssize)); |
686 | next->stack->sptr, labs (next->stack->ssize)); |
711 | } |
687 | } |
712 | |
688 | |
713 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
689 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
690 | prev->cursp = stacklevel; |
714 | /* don't add any code here */ |
691 | /* don't add any code here */ |
715 | } |
692 | } |
716 | |
693 | else |
|
|
694 | next->cursp = stacklevel; |
717 | } |
695 | } |
718 | else if (next->tmps_ix == -2) |
696 | else if (next->tmps_ix == -2) |
719 | croak ("tried to transfer to running coroutine"); |
697 | croak ("tried to transfer to running coroutine"); |
720 | else |
698 | else |
721 | { |
699 | { |
|
|
700 | LOCK; |
722 | SAVE (prev, -1); /* first get rid of the old state */ |
701 | SAVE (prev, -1); /* first get rid of the old state */ |
|
|
702 | UNLOCK; |
723 | |
703 | |
724 | if (flags & TRANSFER_SAVE_CCTXT) |
704 | if (flags & TRANSFER_SAVE_CCTXT) |
725 | { |
705 | { |
726 | if (!prev->stack) |
706 | if (!prev->stack) |
727 | allocate_stack (prev, 0); |
707 | allocate_stack (prev, 0); |
728 | |
708 | |
729 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
709 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
730 | { |
710 | { |
|
|
711 | PL_top_env = &next->start_env; |
|
|
712 | |
731 | setup_coro (next); |
713 | setup_coro (next); |
|
|
714 | next->cursp = stacklevel; |
732 | |
715 | |
733 | prev->stack->refcnt++; |
716 | prev->stack->refcnt++; |
734 | prev->stack->usecnt++; |
717 | prev->stack->usecnt++; |
735 | next->stack = prev->stack; |
718 | next->stack = prev->stack; |
736 | next->gencnt = prev->gencnt; |
719 | next->gencnt = prev->gencnt; |
737 | } |
720 | } |
738 | else |
721 | else |
739 | { |
722 | { |
|
|
723 | assert (!next->stack); |
740 | allocate_stack (next, 1); |
724 | allocate_stack (next, 1); |
741 | coro_create (&(next->stack->cctx), |
725 | coro_create (&(next->stack->cctx), |
742 | setup_coro, (void *)next, |
726 | setup_coro, (void *)next, |
743 | next->stack->sptr, labs (next->stack->ssize)); |
727 | next->stack->sptr, labs (next->stack->ssize)); |
744 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
728 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
729 | prev->cursp = stacklevel; |
745 | /* don't add any code here */ |
730 | /* don't add any code here */ |
746 | } |
731 | } |
747 | } |
732 | } |
748 | else |
733 | else |
|
|
734 | { |
749 | setup_coro (next); |
735 | setup_coro (next); |
|
|
736 | next->cursp = stacklevel; |
|
|
737 | } |
750 | } |
738 | } |
751 | |
|
|
752 | /* |
|
|
753 | * xnext is now either prev or next, depending on wether |
|
|
754 | * we switched the c stack or not. that's why i use a global |
|
|
755 | * variable, that should become thread-specific at one point. |
|
|
756 | */ |
|
|
757 | xnext->cursp = stacklevel; |
|
|
758 | } |
739 | } |
759 | |
740 | |
|
|
741 | LOCK; |
760 | if (coro_mortal) |
742 | if (coro_mortal) |
761 | { |
743 | { |
762 | SvREFCNT_dec (coro_mortal); |
744 | SvREFCNT_dec (coro_mortal); |
763 | coro_mortal = 0; |
745 | coro_mortal = 0; |
764 | } |
746 | } |
|
|
747 | UNLOCK; |
765 | } |
748 | } |
766 | |
749 | |
767 | #define SV_CORO(sv,func) \ |
750 | #define SV_CORO(sv,func) \ |
768 | do { \ |
751 | do { \ |
769 | if (SvROK (sv)) \ |
752 | if (SvROK (sv)) \ |
770 | sv = SvRV (sv); \ |
753 | sv = SvRV (sv); \ |
771 | \ |
754 | \ |
772 | if (SvTYPE(sv) == SVt_PVHV) \ |
755 | if (SvTYPE (sv) == SVt_PVHV) \ |
773 | { \ |
756 | { \ |
774 | HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
757 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
775 | \ |
758 | \ |
776 | if (!he) \ |
759 | if (!he) \ |
777 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
760 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
778 | \ |
761 | \ |
779 | (sv) = SvRV (HeVAL(he)); \ |
762 | (sv) = SvRV (HeVAL(he)); \ |
780 | } \ |
763 | } \ |
781 | \ |
764 | \ |
782 | /* must also be changed inside Coro::Cont::yield */ \ |
765 | /* must also be changed inside Coro::Cont::yield */ \ |
783 | if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ |
766 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
784 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
767 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
785 | \ |
768 | \ |
786 | } while(0) |
769 | } while(0) |
787 | |
770 | |
788 | #define SvSTATE(sv) (struct coro *)SvIV (sv) |
771 | #define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv)) |
789 | |
772 | |
790 | static void |
773 | static void |
791 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
774 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
792 | { |
775 | { |
793 | SV_CORO (prev, "Coro::transfer"); |
776 | SV_CORO (prev, "Coro::transfer"); |
794 | SV_CORO (next, "Coro::transfer"); |
777 | SV_CORO (next, "Coro::transfer"); |
795 | |
778 | |
796 | transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); |
779 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
797 | } |
780 | } |
798 | |
781 | |
799 | /** Coro ********************************************************************/ |
782 | /** Coro ********************************************************************/ |
800 | |
783 | |
801 | #define PRIO_MAX 3 |
784 | #define PRIO_MAX 3 |
… | |
… | |
809 | static GV *coro_current, *coro_idle; |
792 | static GV *coro_current, *coro_idle; |
810 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
793 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
811 | static int coro_nready; |
794 | static int coro_nready; |
812 | |
795 | |
813 | static void |
796 | static void |
814 | coro_enq (SV *sv) |
797 | coro_enq (pTHX_ SV *sv) |
815 | { |
798 | { |
|
|
799 | SV **xprio; |
|
|
800 | int prio; |
|
|
801 | |
816 | if (SvTYPE (sv) == SVt_PVHV) |
802 | if (SvTYPE (sv) != SVt_PVHV) |
817 | { |
|
|
818 | SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
819 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
820 | |
|
|
821 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
822 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
823 | : prio; |
|
|
824 | |
|
|
825 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
826 | coro_nready++; |
|
|
827 | |
|
|
828 | return; |
|
|
829 | } |
|
|
830 | |
|
|
831 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
803 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
804 | |
|
|
805 | xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
806 | prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
807 | |
|
|
808 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
809 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
810 | : prio; |
|
|
811 | |
|
|
812 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
813 | coro_nready++; |
832 | } |
814 | } |
833 | |
815 | |
834 | static SV * |
816 | static SV * |
835 | coro_deq (int min_prio) |
817 | coro_deq (pTHX_ int min_prio) |
836 | { |
818 | { |
837 | int prio = PRIO_MAX - PRIO_MIN; |
819 | int prio = PRIO_MAX - PRIO_MIN; |
838 | |
820 | |
839 | min_prio -= PRIO_MIN; |
821 | min_prio -= PRIO_MIN; |
840 | if (min_prio < 0) |
822 | if (min_prio < 0) |
… | |
… | |
851 | } |
833 | } |
852 | |
834 | |
853 | static void |
835 | static void |
854 | api_ready (SV *coro) |
836 | api_ready (SV *coro) |
855 | { |
837 | { |
|
|
838 | dTHX; |
|
|
839 | |
856 | if (SvROK (coro)) |
840 | if (SvROK (coro)) |
857 | coro = SvRV (coro); |
841 | coro = SvRV (coro); |
858 | |
842 | |
|
|
843 | LOCK; |
859 | coro_enq (SvREFCNT_inc (coro)); |
844 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
|
|
845 | UNLOCK; |
860 | } |
846 | } |
861 | |
847 | |
862 | static void |
848 | static void |
863 | api_schedule (void) |
849 | api_schedule (void) |
864 | { |
850 | { |
|
|
851 | dTHX; |
|
|
852 | |
865 | SV *prev, *next; |
853 | SV *prev, *next; |
866 | |
854 | |
|
|
855 | LOCK; |
|
|
856 | |
867 | prev = SvRV (GvSV (coro_current)); |
857 | prev = SvRV (GvSV (coro_current)); |
868 | next = coro_deq (PRIO_MIN); |
858 | next = coro_deq (aTHX_ PRIO_MIN); |
869 | |
859 | |
870 | if (!next) |
860 | if (!next) |
871 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
861 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
872 | |
862 | |
|
|
863 | /* free this only after the transfer */ |
873 | coro_mortal = prev; |
864 | coro_mortal = prev; |
874 | SV_CORO (prev, "Coro::schedule"); |
865 | SV_CORO (prev, "Coro::schedule"); |
875 | |
866 | |
876 | SvRV (GvSV (coro_current)) = next; |
867 | SvRV (GvSV (coro_current)) = next; |
877 | |
868 | |
878 | SV_CORO (next, "Coro::schedule"); |
869 | SV_CORO (next, "Coro::schedule"); |
879 | |
870 | |
|
|
871 | UNLOCK; |
|
|
872 | |
880 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
873 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
881 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
874 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
882 | } |
875 | } |
883 | |
876 | |
884 | static void |
877 | static void |
885 | api_cede (void) |
878 | api_cede (void) |
886 | { |
879 | { |
|
|
880 | dTHX; |
|
|
881 | |
|
|
882 | LOCK; |
887 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
883 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
884 | UNLOCK; |
888 | |
885 | |
889 | api_schedule (); |
886 | api_schedule (); |
890 | } |
887 | } |
891 | |
888 | |
892 | MODULE = Coro::State PACKAGE = Coro::State |
889 | MODULE = Coro::State PACKAGE = Coro::State |
893 | |
890 | |
894 | PROTOTYPES: ENABLE |
891 | PROTOTYPES: ENABLE |
895 | |
892 | |
896 | BOOT: |
893 | BOOT: |
897 | { /* {} necessary for stoopid perl-5.6.x */ |
894 | { /* {} necessary for stoopid perl-5.6.x */ |
|
|
895 | #ifdef USE_ITHREADS |
|
|
896 | MUTEX_INIT (&coro_mutex); |
|
|
897 | #endif |
|
|
898 | |
898 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
899 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
899 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
900 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
900 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
901 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
901 | |
902 | |
902 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
903 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
903 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
904 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
904 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
905 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
905 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
906 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
906 | |
|
|
907 | if (!padlist_cache) |
|
|
908 | padlist_cache = newHV (); |
|
|
909 | |
907 | |
910 | main_mainstack = PL_mainstack; |
908 | main_mainstack = PL_mainstack; |
911 | |
909 | |
912 | coroapi.ver = CORO_API_VERSION; |
910 | coroapi.ver = CORO_API_VERSION; |
913 | coroapi.transfer = api_transfer; |
911 | coroapi.transfer = api_transfer; |
… | |
… | |
921 | Coro__State coro; |
919 | Coro__State coro; |
922 | |
920 | |
923 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
921 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
924 | croak ("Coro::State::_newprocess expects an arrayref"); |
922 | croak ("Coro::State::_newprocess expects an arrayref"); |
925 | |
923 | |
926 | New (0, coro, 1, struct coro); |
924 | Newz (0, coro, 1, struct coro); |
927 | |
925 | |
928 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
926 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
929 | coro->mainstack = 0; /* actual work is done inside transfer */ |
927 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
930 | coro->stack = 0; |
928 | /*coro->stack = 0;*/ |
|
|
929 | |
|
|
930 | /* same as JMPENV_BOOTSTRAP */ |
|
|
931 | /* we might be able to recycle start_env, but safe is safe */ |
|
|
932 | /*Zero(&coro->start_env, 1, JMPENV);*/ |
|
|
933 | coro->start_env.je_ret = -1; |
|
|
934 | coro->start_env.je_mustcatch = TRUE; |
931 | |
935 | |
932 | RETVAL = coro; |
936 | RETVAL = coro; |
933 | OUTPUT: |
937 | OUTPUT: |
934 | RETVAL |
938 | RETVAL |
935 | |
939 | |
… | |
… | |
954 | if (coro->mainstack && coro->mainstack != main_mainstack) |
958 | if (coro->mainstack && coro->mainstack != main_mainstack) |
955 | { |
959 | { |
956 | struct coro temp; |
960 | struct coro temp; |
957 | |
961 | |
958 | PUTBACK; |
962 | PUTBACK; |
959 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
963 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
960 | LOAD(aTHX_ coro); |
964 | LOAD (aTHX_ coro); |
961 | SPAGAIN; |
965 | SPAGAIN; |
962 | |
966 | |
963 | destroy_stacks (aTHX); |
967 | destroy_stacks (aTHX); |
964 | |
968 | |
965 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
969 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
966 | SPAGAIN; |
970 | SPAGAIN; |
967 | |
971 | |
968 | coro->mainstack = 0; |
972 | coro->mainstack = 0; |
969 | } |
973 | } |
970 | |
974 | |
971 | deallocate_stack (coro); |
975 | deallocate_stack (coro); |
972 | |
976 | SvREFCNT_dec (coro->args); |
973 | Safefree (coro); |
977 | Safefree (coro); |
974 | |
|
|
975 | void |
|
|
976 | flush() |
|
|
977 | CODE: |
|
|
978 | #ifdef MAY_FLUSH |
|
|
979 | flush_padlist_cache (); |
|
|
980 | #endif |
|
|
981 | |
978 | |
982 | void |
979 | void |
983 | _exit(code) |
980 | _exit(code) |
984 | int code |
981 | int code |
985 | PROTOTYPE: $ |
982 | PROTOTYPE: $ |
986 | CODE: |
983 | CODE: |
987 | #if defined(__GLIBC__) || _POSIX_C_SOURCE |
|
|
988 | _exit (code); |
984 | _exit (code); |
989 | #else |
|
|
990 | signal (SIGTERM, SIG_DFL); |
|
|
991 | raise (SIGTERM); |
|
|
992 | exit (code); |
|
|
993 | #endif |
|
|
994 | |
985 | |
995 | MODULE = Coro::State PACKAGE = Coro::Cont |
986 | MODULE = Coro::State PACKAGE = Coro::Cont |
996 | |
987 | |
997 | # this is slightly dirty (should expose a c-level api) |
988 | # this is slightly dirty (should expose a c-level api) |
998 | |
989 | |
999 | void |
990 | void |
1000 | yield(...) |
991 | yield(...) |
1001 | PROTOTYPE: @ |
992 | PROTOTYPE: @ |
1002 | CODE: |
993 | CODE: |
1003 | static SV *returnstk; |
994 | SV *yieldstack; |
1004 | SV *sv; |
995 | SV *sv; |
1005 | AV *defav = GvAV (PL_defgv); |
996 | AV *defav = GvAV (PL_defgv); |
1006 | struct coro *prev, *next; |
997 | struct coro *prev, *next; |
1007 | |
998 | |
1008 | if (!returnstk) |
999 | yieldstack = *hv_fetch ( |
1009 | returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); |
1000 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1001 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1002 | 0 |
|
|
1003 | ); |
1010 | |
1004 | |
1011 | /* set up @_ -- ugly */ |
1005 | /* set up @_ -- ugly */ |
1012 | av_clear (defav); |
1006 | av_clear (defav); |
1013 | av_fill (defav, items - 1); |
1007 | av_fill (defav, items - 1); |
1014 | while (items--) |
1008 | while (items--) |
1015 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1009 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1016 | |
1010 | |
1017 | mg_get (returnstk); /* isn't documentation wrong for mg_get? */ |
|
|
1018 | sv = av_pop ((AV *)SvRV (returnstk)); |
1011 | sv = av_pop ((AV *)SvRV (yieldstack)); |
1019 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1012 | prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)))); |
1020 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1013 | next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)))); |
1021 | SvREFCNT_dec (sv); |
1014 | SvREFCNT_dec (sv); |
1022 | |
1015 | |
1023 | transfer(aTHX_ prev, next, 0); |
1016 | transfer (aTHX_ prev, next, 0); |
1024 | |
1017 | |
1025 | MODULE = Coro::State PACKAGE = Coro |
1018 | MODULE = Coro::State PACKAGE = Coro |
1026 | |
1019 | |
1027 | # this is slightly dirty (should expose a c-level api) |
1020 | # this is slightly dirty (should expose a c-level api) |
1028 | |
1021 | |
… | |
… | |
1057 | sv_setiv(sv, (IV)&coroapi); |
1050 | sv_setiv(sv, (IV)&coroapi); |
1058 | SvREADONLY_on(sv); |
1051 | SvREADONLY_on(sv); |
1059 | } |
1052 | } |
1060 | } |
1053 | } |
1061 | |
1054 | |
|
|
1055 | #if !PERL_MICRO |
|
|
1056 | |
1062 | void |
1057 | void |
1063 | ready(self) |
1058 | ready(self) |
1064 | SV * self |
1059 | SV * self |
1065 | PROTOTYPE: $ |
1060 | PROTOTYPE: $ |
1066 | CODE: |
1061 | CODE: |
1067 | api_ready (self); |
1062 | api_ready (self); |
|
|
1063 | |
|
|
1064 | #endif |
1068 | |
1065 | |
1069 | int |
1066 | int |
1070 | nready(...) |
1067 | nready(...) |
1071 | PROTOTYPE: |
1068 | PROTOTYPE: |
1072 | CODE: |
1069 | CODE: |
… | |
… | |
1084 | cede(...) |
1081 | cede(...) |
1085 | PROTOTYPE: |
1082 | PROTOTYPE: |
1086 | CODE: |
1083 | CODE: |
1087 | api_cede (); |
1084 | api_cede (); |
1088 | |
1085 | |
|
|
1086 | # and these are hacks |
|
|
1087 | SV * |
|
|
1088 | _aio_get_state () |
|
|
1089 | CODE: |
|
|
1090 | { |
|
|
1091 | struct { |
|
|
1092 | int errorno; |
|
|
1093 | int laststype; |
|
|
1094 | int laststatval; |
|
|
1095 | Stat_t statcache; |
|
|
1096 | } data; |
|
|
1097 | |
|
|
1098 | data.errorno = errno; |
|
|
1099 | data.laststype = PL_laststype; |
|
|
1100 | data.laststatval = PL_laststatval; |
|
|
1101 | data.statcache = PL_statcache; |
|
|
1102 | |
|
|
1103 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1104 | } |
|
|
1105 | OUTPUT: |
|
|
1106 | RETVAL |
|
|
1107 | |
|
|
1108 | void |
|
|
1109 | _aio_set_state (char *data_) |
|
|
1110 | PROTOTYPE: $ |
|
|
1111 | CODE: |
|
|
1112 | { |
|
|
1113 | struct { |
|
|
1114 | int errorno; |
|
|
1115 | int laststype; |
|
|
1116 | int laststatval; |
|
|
1117 | Stat_t statcache; |
|
|
1118 | } *data = (void *)data_; |
|
|
1119 | |
|
|
1120 | errno = data->errorno; |
|
|
1121 | PL_laststype = data->laststype; |
|
|
1122 | PL_laststatval = data->laststatval; |
|
|
1123 | PL_statcache = data->statcache; |
|
|
1124 | } |